ingsight 09 - december 2011

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IngSight|09

themagazineforourengineersandarchitects

December20��

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www.dorsch.de

http://www.dorsch.de

IngSight|09December 20��20��

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Contents

Contents

GroupNews 4

InBrief 8

DorschTopics:

60thAnniversaryCelebrationofDorschGruppe 9

LandmarkProject:

NewAmericanHighSchoolwithLEEDCertification �0

ReportsoftheCompanies �2

facebookandtwitter 26

Imprint 27

OffenbachCityTower

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Group News

Asthecommemorationbegun,greatcarewastakenparticularlytoensurethattheclientsaregreetedproperly.

Itistimetoacknowledgetheevery-dayroutineforbusinessandsociallifetotheutmostimportanceinworkinghandinhandovertheyearsforeveryminorormajorprojectsinvolved.

Sincedinnerwasservedandevery-bodyenjoyedthefood,apresenta-tionofDorsch’smajorprojectswasshownonthestage.

DC Abu Dhabi

Iftar Party for the Clients of DC Abu Dhabi

Followingthesuccessin24yearsofDorschinUnitedArabEmirates,ithasbeenaculturetoshareandcel-ebrateyearlythespiritofholymonthofRamadan.

Asannualcelebrationofthesacredmonth,DorschHolding-DCAbuDhabiendowedanIftarPartytoitsrespectedclientsheldinAlThurayaBallroomB&CinBeachRotanaHotelonAugust22nd,20��.

Theeventcouldnothavebeenthesuccesswithoutthededicationofthemanagementteam,andtheinvalu-ablebehind-the-scenesworkoftheorganizer.

Withguestsfinallyleavingthevenueat8:00inthemorning,DorschHold-ingGmbH–AbuDhabibrandedthepartyoneofthebestithadeverheld.

TheIftarclients’partytookplaceinAlThurayaBallroomB&CoftheBeachRotanaHotel

Arichbuffetwasservedforanexclusiveselectionofspecialities


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Lookingforwardfornextyear’sIftarPartycelebrationandmoreyearstocome!

DC Abu Dhabi Staff Fastbreaking Party

Everyyearforone(�)completelunarmonth,theninth(9th)monthofIs-lamicCalendar,itisareligiousbeliefandpracticethateveryMuslimmustperformsacrificesandfast.

DorschHoldingbasedinAbuDhabiisdelightfulingivingrespecttoitspeople,families,friendsandcolleaguesfortheholymonthofRamadanbysharingandcelebratingittogether.

Thisyear’sDorschIftarPartyinAbuDhabiwithitshighlyvaluedstaffsheldatLeRoyalMeridienHotel(LayaliElHilmiyaTent)onAugust�8th,20��.

Itisalsoacelebrationtoacknowl-edgeandappreciatethehardworkandeffortcontributedbyeachteammemberforthebettermentofthecompany.

Afriendly-happyenvironmentwasconveyedbyeveryoneastheyenteredthevenue;everybodywassurroundedbythepolite,helpfulandhospitableevent’screw.TheDCAbuDhabiteamenjoyedadelightfuldinnerandspentseveralentertain-inghoursjointlyinthehotel’suniqueatmosphere.

Finally,abigthankyoutoallofthestaffswhospenttheirprecioustimewiththecelebrationofDorsch’sstaffIftarPartyandcongratulationstotheorganizer,itwasasuccessfuleventandtrulyappreciatedbytheentireDCAbuDhabimanagement.

ManagementandcolleaguesofDCAbuDhabiattheirIftarfastbreakingceremonyinLeRoyalMeridienHotel

ThebrighlydecoratedLayaliElHilmiyaTentattheLeRoyalMeridienHotel

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Dorsch International

German Minister Dirk Niebel visited Dorsch Project in Albania

InthecourseofhisBalkanjourney,DevelopmentCooperationMinisterDirkNiebelvisitedourprojectinBeratandKocova.ThisisaprojectfinancedbytheGermanMinistryofDevelopmentCooperationaimingatasustainedimprovementofthewatersupplyinbothMiddleAlbaniancities.

Thetransportlinebetweenthetwosupplyareaswasofficiallyoperatedforthefirsttimeduringtheinaugu-rationparty,inwhichnotonlyMin-isterNiebeltookpart,butalsotheAlbanianPrimeMinisterSalihBerishaaswellasnumerouspoliticiansandpressrepresentatives.

ThisprojectwasoperatedbyaconsortiumconsistingofDorschInternationalConsultantsGmbHandIncoWest(Worms,Germany).

Theprojectservicescomprised,amongothers,theplanning,tender-ingandconstructionsupervisionfortheextensionworksofthewatersupplynetandthereductionofwaterloss.

Dr. Vestner Elected as Adviser for the Bavarian DWA Board

IntheBavarianDWAfederalcon-ferenceonOctober26th20��Dr.Vestner,managingdirectorofDorschInternational,hasbeenelectedadviseroftheDWAboard.

TheGermanAssociationforWaterEconomy,SewageandWasteMan-agementrepresentstheexpertsofthefieldsofwaterandenvironment.Theassociationmainlydealswithtechnical-scientificissuesandtheeconomicandjuridicalconcernsofenvironmentprotection.

Precisely,thepoliticallyandeconomi-callyindependentassociationworksinthefieldsofwaterpollutioncon-trol,sewage,compoundshazardoustowaters,waste,waterengineering,hydraulicpower,hydrology,soilcon-servationandcontaminatedsites.

ThetaskoftheadvisoryboardoftheDWAfederalassociationistheconsultancyofthedirectoryofthefederalassociation.Together,theysetthecourseforthenationalworkoftheassociation.

Fromleft:MinisterDirkNiebel,PremierMinisterSalihBerishaandFadilNasufi,MayorofBerat;MinisterNiebelwithprojectexecutivesattheinaugurationofthewatersupplysystemBerat

Newmembers(fromleft)MinisterialratEichenseer,BavarianMinistryforEnvironment,Dr.VestnerandDr.Steger,CoplanAG


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BDC Berlin

Team Relay of the Berlin Water Authority, Germany

OnJune2�rd,twoBDCteamstookpartinthe�x�relayoftheBerlinwatercompaniesforthefirsttime.Ofcourse,wegavethecompetitorsapropergear.

Thisevent,whichisalreadyinits�2thyear,isbecomingmoreandmorepopularandhasalreadybecomethelargestrelayofGermany.Thethreeeventday,fromJune22ndtillJune24th,featured4,200teamswith2�,000runnersthisyear.

Oneteamconsistsof�participants;eachofthemrunsa�kmroundthroughthezoo.ThetrackliesintheNorthernpartofthezoo,theex-changezoneisSouthoftheGermanChancellorsOfficeonthesocalled“SculptureLawn(Skulpturenwiese)”.

Aftertheeffortstherewasorgan-izedanicepicnic,wherewediscussedmissedopportunitiesforabetterrange.

WecongratulateTeamB(Mr.Krüger,Mr.Schleusener,Mr.Franzen,Mr.Rimpler,Mr.Haas)onthevictoryoftheBDCinternalcompetitionwithatimeof2:06:�0aswellasthe�,��thrangeofthewholecompetition(of4,202teams,i.e.inthefirstthird).

OurBDCrunningteamatthestartoftheteamrelayoftheBerlinWaterAutority

Study Tour to Germany of a Brazilian Delegation from Mogi Mirim, State of São Paulo, Brazil

InthecourseofthePPPproject”ResourceefficientsolidwastemanagementfortheregionofMogiMirim,Brazil”aninememberdelega-tioncametoGermanyfromSeptem-ber4thtillSeptember9th.

TherepresentativesfromMogiMirimandfourothercitiesofSãoPaulo(�mayorsamongstthem)wereattend-edbyBDCandtheprofessorshipforsolidwasteandmassflowmanage-mentoftheUniversityofRostock.

TheBrazilianDelegationvisitingBDCinthecourseoftheir“StudyTourGermany“

Fullsteamaheadforthecompany’ssuccess

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ThestudytourinBerlin,Mecklenburg-WestPomeraniaandSaxonyincludedvisitstoaheatingplant,amunicipaldisposalauthority,awastedisposalcompany,ahazardouswastetreat-mentplant,acompostingplant,aconstructionwasteprocessingplant,amechanical-physicalwastetreat-mentplant,arecyclingplant,ace-mentmillandaspecialistforgarbageincineration.

Aspecialists’conversationtookplacewitheachoftherepresentatives,whichleadtothebasicsofthefutureprojectwork.

OurnextvisitinBrazilwillgiveusthechancetopresentthefirstsolutionsofadraftconceptandtodiscusswiththelocalpartners.

WealsoorganisedaculturaltourforthedelegationinwhichwehadguidedtoursinDresden,Warne-muendeandBerlin,wherewealsowenttoseethetelevisiontower.

ThejourneybackfromBerlintoFrankfurtAirportwasbyICEattherequestofthedelegation.

In Brief

BDC Berlin: Rolf Schmidt appoint-ed as a Member of the Board of Directors of the Chamber of Engineers Mecklenburg-West Pomerania/Hamburg, Germany

Inthecourseofthe26thdel-egates’meetingoftheChamberofEngineersofMecklenburg-WestPomeraniaandHamburginRostock,RolfSchmidt(Dipl.Ing.,i.e.graduateengineer)wasappointedanewmemberofthe7-memberboardofdirectors.

TheChamber’snewfocuswillbetherevisionandamendmentoftheHOAItillthesummerof20��,theamendmentofthefederalbuildinglaw,thecontinuingex-tensionofthespecialtiesindexesofthechambermemberwithspecialskillsandthecontinua-tionoftheadvancedtrainingsforthemembersoftheChamberofEngineersofMecklenburg-WestPomeraniaandHamburg.

WewishRolfSchmidtgoodluckwithhisworkfortheChamberofEngineers.

BoardofDirectorsoftheChamberofEngineersMecklenburg-WestPomeraniawithourcolleagueRolfSchmidt(2.f.r.)

SitevisitatasubstitutefuelheatingplantinStavenhagen,Mecklenburg-WestPomerania


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grilledsalmonattheopenfireandbakedbreadinearthenbakingmoulds.Participantsmixedcock-tails,inventedtheirownseasonings,arrangedflowersandnapkinsandwrotethemenus.

Intheworkshopsdrums,juggling,magictricksanddramatheentertain-mentprogramwaspreparedforthecelebration.

Andthankstothejournalistteamaslideshowsummarizingthewholedayisavailable.

Allthepreparationswerethenenjoyedtogetherduringtheverycelebrationintheevening.Startingfrom�pmcolleaguesandguestshadawonderfulmealtogetherandwerefascinatedbythepreviouslypreparedentertainmentprogram.

Hopefully,thisdaywillberemem-beredbyeveryoneasadayofgettingtoknoweachotherandofcommu-nicationenhancementbetweenthecolleaguesofallthedifferentbranchoffices.

Wewouldalsoliketothankthe”tourextrem“teaminSeligenstadtfortheirfabulousideasandorganisa-tionworkwhichmadethiscelebra-tionpossible.

estatewheretheDorschanniversarymarkettookplace.

Awonderfulblueskyandthebeauti-fulvineyardsattheirbacks,Mr.RöderandMr.Hoffmannwelcomedtheguestsbeforetheestateasbackdropandtheyrevealedthesecretbehindthemysteriouswordsontheinvita-tion.

Theconceptoftheanniversarypartywaschosentobeespeciallyinformal,andthustobecomeaveryspecialeventforandwithDorsch‘sstaffandguests.

Insteadofjustsittingdown,eatingandbeingentertained,everyonewastocontributetothecelebration.Asin„Weforourselves“everyonejoinedoneofthenumerouswork-shopsforthesuccessoftheevening‘scelebration.

Workshopsconsistedof,forinstance,outdoorcooking,inwhichparticipants

60th Anniversary Celebration of Dorsch Gruppe

by Susanne Pahnke

„FlowersmeetcrystalsandsalmonswallowsShakespeare...“„What‘sthatsupposedtomean?“–that‘swhatsomepeoplecertainlywerewonderingwhentheygottheinvitationtoDorschGruppe’s60than-niversaryparty.

TheygottheanswertothatriddleattheHünersdorffestateinWörthontheMainon24thSeptember20��.

Wehadapproximately2�0guestsforouranniversary:fromGermanyandabroad,numerousguestslinkedtothecompany,manystaffmembersandtheCEOsofDCAbuDhabi,DCIndiaandDorschHanam.

Peopleinsophisticatedmedievalcos-tumesanddarkfellowsaccompaniedthegueststothebackyardofthe

SusannePahnke,SeniorAdvisortotheCEO,DorschHolding

Unorthodoxteamwork:DorschcolleaguesfromGermanyandabroadenjoyingthecommonteameventsattheparty

Dorsch Topics

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TheLEEDbuildingcertificatesystemisastandardforhighvalueecologi-calbuildings,whicharealsohealthierandmoreprofitablethanconven-tionalbuildings.ItwasdevelopedbytheUSGBC(USGreenBuildingCouncil)servingthepublicgood.

Individualsystemsexistforthesinglemarketsegments;itdifferentiatesnotonlynewconstruction,existingstructureorrefurbishment,butalsousageslikeschools.Theaspectswhichareevaluatedaredifferent.

TheLEEDcertificationofabuildingisaneffectivepublicrepresentationofitsecologicalvalue.

Landmark Project

New Construction of American High School in Kaiserslautern According to LEED Certification

by Reinhold Weis

DIArchitectureinWiesbadenisgoingtocooperatewithanAmericanarchi-tecture’sofficetogettheLeadershipinEnergyandEnvironmentalDesigncertificate(LEEDcertificate)forthenewconstructionofanAmericanhighschool.

ThiswillbethefirstprojectoftheAmericanschoolauthoritiesinEuropewithsuchacertificate.

TheLEEDcertificateisasystemfortheclassificationofecologicalconstruction,whichdefinesseveralstandardsforsustainedandecologi-calconstruction.

Theclassificationtakesplaceinfourqualitystages,whicharejudgedbypoints.��0pointscanbeobtainedintotal,whichisaplatinumcertificate(startingat80points).Agoldcertifi-cateissucceededwith60-79points,silverfrom�0to�9andthestatus“certified”requires40-49points.

TheendeavouredgoldcertificateforthenewconstructionoftheAmeri-canhighschoolfor8�0pupilswillbecarriedoutoverthewholeprojectperiodandwillalsoaccompanytheconstructionphase.

ThenewconstructionofthehighschoolarchitectonicallyrealizestheobjectivesoftheAmericanschoolauthoritiestoofferahighqualifiededucationforallhighschoolstu-dents.

Theconstructiontriestoemphasizetheimportanceofeducationbysig-nificantconstructionalcharacteristics.ThepublicviewshowsaschoolresemblingaGreekAgora,framedbybuildingsandpillars.Thestruc-turesaremainlytwo-storeyedandsurroundedwithaporticoandtheyrepresentthecentralhauntorschoolyard.Thewholepublicarea

ishandicappedaccessiblydesignedaccordingtotherecentArchitectureBarriersAct.

TheDIdepartmentscivilengineer-ing,technicalbuildinginfrastructure,structuralengineeringandinteriordesignareinvolvedintheplanningprocess.Theyareresponsibleforthebasicevaluation,thepreliminary,draftanddetaileddesignaswellasforthebillofquantitiesandthecostcalculations.

Thecertificateisnewforusandfortheclient,however,thusitcanbeusedasaverygoodreferenceforfutureprojectbids.

Bird’seyeviewandauditoriumofplannedHighSchoolKaiserslautern-VorgelwehaccordingtoLEEDgoldstandard


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• Category 6: Innovation and Design Process SpecialinnovationsandLEEDAP.

OurtargetdesigningunderLEEDistoimprovetheprojectconcerningitsenergyefficiency,itscomfortanditsfunctionality.

Sustainablebuildingspreservetheenvironmentandthenaturalresources,theyhavemuchloweroperatingcosts,butabetterconven-ience.Theyaddtothecomfortandincreasethevalueofabuilding.SinceJune2�rd,2009version�isinforce,whichsplitstheaspectsinsixcategories:

• Category 1: Sustainable Sites Evaluationoflocationandsurroun-

dingsconsideringitseffectsonthem.

• Category 2: Water Efficiency Waterneedintheoperationperiod

• Category 3: Energy and Atmosphere Energyneedintheoperationpe-

riodconsideringheating,cooling,lightingandtheusageofrenew-ableenergy.

• Category 4: Materials and Resources Usedmaterials,especiallylocally

available,renewableorrecycledmaterials.

• Category 5: Indoor Environmental Quality Healthandcomfortinthebuilding.

Itfocusesonreductionofprejudi-cialgases,freshairanddaylight.

RenderingsoffutureAmericanHighSchool

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locatedinashallowpoolwithfoursmallwaterslides,agianttippingbucket,acrawltunnel,waterguns,awaterumbrella,smalltippingbuckets,awaterwheel,andwatershowers.

“Murjan”alsohasa2�7-meterlazyriver,whichissixmetersdeepwithtwistsandturnstorideandfourtrampolinestojumpandflipon.GuestswillbeabletopilottheirownDhowaroundobstaclesandthroughtunnelsandintheRadioControlledDhowDerby.

Potable Water for Ras Ghurab Island, Abu Dhabi, UAE

DorschHoldingGmbH–DCAbuDhabihasbeenappointedtode-signandconstructionsupervisionofpotablewaternetworkinRasGhurabIsland.

recreationalavenuesanddiversealternativestotheinhabitantsofthemetropolitanareaandencouragethemtoavailthesefacilitieswhicharebeingconstantlyupgradedbytheMunicipalitytobringtheminlinewithworld-classstandardsintermsofhealthyenvironment,modernserv-icesandsecurityforallfamilyandcommunitymembers.

TheSplashParkcomprisesofanadventurelandfittedwithwaterfixtures,convenientareasforplayaswellasoutletsforsellingfoodsandotherproductsandcomfortablesit-tingareas.

Excitingunderwatereventsareinplacehighlightedbyjellyfish,multi-colouredumbrellasandaquaticcrea-turesaswellasstaggeringtheatricallightingandsoundsystem.

Themainfeatureof“Murjan”SplashParkisthechildrens’playstructure

DC Abu Dhabi

“Murjan” Splash Leisure Park in Abu Dhabi City, UAE

TheMunicipalityofAbuDhabiCityhasassignedusdesignandconstruc-tionservicesofMurjanSplashParkintheCityofAbuDhabi.ItwaslaunchedonthefirstdayofEidAlFitr.

It’sadiversifiedentertainmentenvironmentfittedSplashParkwithrecreationalfacilitiesandeduca-tionaltoolsinanexcitinganduniqueplatforminspiredbythemagicofthevibrantseaworld,primarilytargetingchildrenandfamilies.

TheprojectperiodwasfromMay20�0tillMay20��.ItstotalcostwasAED�7million.

“Murjan”depictsthekeenatten-tionoftheMunicipalitytoprovide

Reports of the Companies

Openingofthenew“Murjan“SplashLeisureParkforchildrenandfamiliesinAbuDhabiCity


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Theinhabitantsofsuchacomplexrequirepublicamenitiessuchasgreenareas,playgrounds,daycarefacilitiesandavarietyofcommercialshopsondailybasis.

Therefore,theconstructionofamosquewithasuitablecapacitytoaccommodatetheinhabitantsofthecomplexaccordingtoAlAinMunicipalityandAWQAFregulationsisamust.

Asapartofthedesign,themosqueswasdesignedtomeetESTIDAMAregulationsofsustainabilityusingnewtechnologiestosavewater&electricityconsumption,aswellasus-ingenvironmentalfriendlyfinishingmaterials.

Toassuretheharmonyofthemosquewiththeexistingbuildingsandland-scape,theprojectswasdesignedtomeetthesamecoloursandelementsusedintheexistingbuildingsandnativetressandpalmsareusedinthelandscapingoftheexternalareasaroundthemosque.Startofcon-structionwasinSeptember20��.

TheprojectwithabudgetofAED8millionwillbefinishedonAugust��st,20�2.TheclientistheCrownPrinceCourt.

ofawardingtheoperationandmain-tenanceafterconstructionphase.

Sincewehavesubstantialprofession-alexperiencesinsimilarprojectswewilldevelopthecurrentstatus.

Al Hilli Mosque for 500 Worshipers in Al Ain, UAE

AlHilliResidentialComplexisanexistingcompoundofmultistoreyresidentialbuildingslocatedneartheborderswithSultanateofOman.

TheclientisthePrivateAffairsDepartmentofH.H.SheikaFatimaBintMubark,thebudgetamountsAED80million.

TheprojectwillstartonOctober,�st,200�andwillendinDecember20�2.

Thehigh-qualityandchallengingprojectcomprisesaconstructionpipebetweenthetwoislandsinthesea.

SinceDorschholdsprofessionalex-perienceinsuchprojectsDorschwilldesignandsupervisethenewmainlineandpotablewaterpipenetworkintheisland.

Al Ain Farms Irrigation, UAE

DorschHoldingGmbH–DCAbuDhabihasbeenappointedtodesignandsupervisetheimplementationofautomaticirrigationsystemforsevenfarmsinAlAin.

TheprojectsstartedinAugust20��andwilllastthreeyears.TheclientisthePrivateAffairsDepartmentofH.H.SheikhaFatimaBintMubark,thebudgetamountstoAED�00million.

Dorschbelievesinchallengingassign-mentsandpreparetodeliverbestqualityprojects.Thereisapossibility RenderingofAlHillimosqueintheresidentialcomplexofthesamename

AutomaticirrigationsystemsforsevenfarmsinAlAin

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Amongstthemanychallengesthatareuniquetothisregionstemmingfromitsrapiddevelopmentpacearetheexceptionallytighttimesched-ulesandsignificantongoingvaria-tionsinprojectparameters.

Anotherundoubtedchallengewillbetheneedtomanagetheneedforsig-nificantdiversionsduetotheexistingheavytruckmovementswhichmustnotbemateriallyinterrupted.

Trafficstudy,analysisandprojectionswillalsobeanotherchallenge,giventhedearthofreliabledatacombinedwiththerapiddevelopmentsalreadymentionedcanresultinhighlyfluid,uncertainandvariabletrafficprojec-tions.

AfurthersignificantchallengewillbetheliaisonrequirementswithserviceandapprovalsauthoritiestoobtainNOC’s(NoObjectionCertificates).

Theprojectistobesplitintosev-eralphases,possiblythree,whichinitselfcanprovidechallengesduetoongoingchangesindemarcationandinterfaces.

TheprojectcallsforLifeCycleCoststoevaluatewithvariousalternatives–initialcostandmaintenancecosts:Engineering,construction,mainte-nance,operation,rehabilitationandsalvage.

Therelativelackofsuchreliablestatisticaldatacanturnthisexercisefromascienceintoanart.

Last,butnotleast,technicalchal-lengeswillbe:routedeterminationandselection,establishinggeotechni-cal/geologicalandsubsoilconditions,identificationofexistingservices,hydrologicalstudiesandtheenviron-mentalimpactstudy.

Nevertheless,itisalsosuchchalleng-esthatprovidethethrillindeliveringsuchprojects.

Accordinglyinanadmirablyshorttimethecountry,indeedtheworld,haswitnessedanexceptionalgrowthrateinitsroadnetwork,bothstrate-gicandsecondary.Inadditiontothenumerousroadnetworksthathavealreadybeenconstructed,aremanynewroadprojectsaroundthecoun-trythathavebeenidentifiedandplannedforthecountry’sprojectedfuturedevelopmentdemands.

AmongsttheseistheproposedroadprojecthighlightedinthiseditionofDorschGruppeIngSightMagazine.Itiswithconsiderablepride,andwithahugeeffortbytheRoadsDepartmentofDorschGruppeAbuDhabi,thatwehavewonfromamongstmanyhighlycompetitivebiddersfortheproject.

Theexistingsinglecarriagewayroadfunctionsessentiallyasacriticalandstrategictruckrouteservingbuild-ingmaterialquarriesandbusinessesintheFujairahandRasAlKheimahEmirates.Theexistingroadhasbeenidentifiedasnearingtheendofitsserviceablelife,bothintermsofcapacityandlifecycle.Accordinglytheroadistoundergoapackageofrehabilitation,improvementofthepavement,upgradingofjunctionsfromroundaboutstosignalcontrolandgradeseparation–toservea��yeardesignlifetotheyear2027.

Modernization of the Road be-tween Al Taween Roundabout – Emirates Road – Al Ittihad Road

TheMinistryofPublicWorksMPWofDubaihasassignedtheRoadsDepart-mentofDorschGruppeAbuDhabitheproject”Maintenance,Improve-mentandUpgradingoftheRoadbetweenAlTaweenRoundabout,EmiratesRoadandAlIttihadRoad”.

Wearetoprovidethedesignandconstructionsupervisionforthisproject,whichtakesplacefromtheNovember�st20��tillAugust�7th20��.ThetotalprojectcostwillbeAED�00million.

TheUAEisveryfortunateinitsgeo-graphicandgeologicallocationsoasbeendowedwithoil.Theleadershipofthenationhasinsightfullydirectedasignificantportionofthepetrodol-larwealthflowingfromthisresourcetofuelthemodernizationanddevel-opmentneedsofitsrapidlygrowingindigenouspopulation.

Oneoftheconsequencesofthisrapidandbreakneckpaceddevel-opmentistherequirement,indeednecessity,foranefficientinfrastruc-tureandroadtransportnetworkthatserveasthearteriesforthenation’sdevelopment.

ModernizationandcapacityextensionofoneofthemostimportantconnectionroadsinDubaiEmirate


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Design of Al Jawazat Round- about Including Landscape Concept in Kuwait City, Kuwait

TheprestigiousKGLAgriculturalServicesandthePublicAuthorityofAgricultural&FishResourcesgaveustheopportunitytocontributetothebeautificationofKuwaitcityaccord-ingtoathoughtfulandcalculatedmasterplanwhosephase�includedtherecreationandrebuildingofthemostimportantareasforthecitizensandvisitors.Theprojectcomprisedoperation,maintenanceanddevelop-mentworks,extendableifrequiredinthefuture.Thetotaldurationwas�6months.Thescopeofworkinclud-edroadnetworks,streets,avenues,roundabouts,parksandopenareas.ThecostswereAED2�million.

Thebiggestchallengewastodealwiththescarcityofwaterintheregionandthetimescheduleoftheprogramgivenbytheclients.

Inadditiontothiswealsohadissueswiththewatertableandthequalityofthesoil.Byproperlyanalyzingalltheelementsofdifferentsideswewereabletoemploymodernsolu-tionsthatwehadalreadyimplement-edinthegulfregion.

Aftercarefulstudieswewereabletoputtogetheralistofbotani-calsolutionsavailableandsuitableforKuwaitregioncombinedwithmoderntechnologysuchassoiladdi-tive,subsurfaceirrigation,high-techirrigationandcontrolsystems.

Wemadeanefforttointegratethehistorical,geographical,demograph-icalandpoliticalelementsofKuwaitCityintoourdesignsaswellaslink-ingthemtotheexistingelements,servicesandthesavingsofallhealthyspecimens.

Dorsch International

Compressor Station Ochtrup in Germany Commissioned

(ExcerptstakenfromapublicationofThyssengasGmbH,Germany)

Thyssengascommissionedanewcom-pressorstationnearOchtrupintheyear20��.Thetwocompressorunitsaredrivenbyanelectricmotorcon-nectedbyaVoithVorecongearuniteach.ThistypeofgearboxisputintooperationinapipelinecompressorstationforthefirsttimeinEurope.

TheindustrialengineeringdivisionofDorschInternationalinMunichwasassignedbytheauthoritieswiththebasicanddetaileddesignandalsowiththeconstructionsupervision.Dorschhadalreadysuggestedintheearlydesignstadiumtouseanadjust-ableplanetarydriveoftheVoithcompanyinsteadofcontrollingthe

Bird’seyeviewofplannedthree-laneAlJawazatroundaboutinKuwaitCity

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rotationnumberoftheelectricmo-torbyfrequencyconversion.AsthismethodhadnotbeenusedinEuropebefore,wehadtoprovideintensivetechnicalsurveys,evaluationofrefer-encesandacomparativelifecyclecostbill.Asaresult,theVoreconwasacceptedasequaltotheconverter.

ThelocalconstructiontookplaceonanarrangedfourhectareestateinJune2009.Theindispensableauthor-itypermissionsweregrantedintimebecauseofthegoodcooperationoftheprojectmanagement,theengi-neerandtheauthorities.Althoughweencounteredoperationalandweatherrelateddifficultiesinwinter,thecompressorstationwaslaunchedintimeforthetransmissionnetwork.

Natural Gas Pipeline “Südschiene 3”, Section Kärnten, Austria

IncooperationwiththeAustrianconsultingengineersibwWagnerIngenieurbüroGmbH,ViennaandPöyryInfraGmbH,Salzburg,theindustrialengineeringdivisionofDorschInternationalinMunichhasbeenassignedthedesignandcon-structionofthehighpressurenaturalgaspipeline“ProjektSüdschiene�”,sectionKärnten,bytheclientKELAGNetzGmbHinKlagenfurt,Austria.

The“Südschiene�”(SouthTrack�)isa��kmsectionofanaturalgaspipe-lineinthefederalstateofKaernteninAustria.ThepipelinesectionbeginsinPichlingattheborderbetweenSteiermarkandKärntenandendsnearEbenthalinKärntenviaKlagen-furt.

Theexistingnaturalgaspipeline“Südleitung“withadiameterof�00mmwasputintooperationalreadyin�9�8.It’scapacitywillbenomoresufficientinforeseeablefuturetocoverthebottlenecksappearinginthemeantime.Thenewsegment

ofthenaturalgaspipelinehasadiameterof�00mm,theworkingpressurewillbe70barandwillcoverallcapacityneedintheyearstocome.

Alongsidethe��kmpipeline,thecontractalsoincludesthetechni-caldesignoftwovalvestationsandsixpigtrap,gaugingandtransferstations.Inaddition,theprojectalsocomprisesthedesignofcathodicpro-tectionplantsandthedesignofthetelecontrolandtelecommunicationtransmission.

Overviewlocationmaps�and2ofnaturalgaspipeline„Südschiene“,sectionSteiermark/Kärntenborder–Ebenthal

ConstructionsiteofOchtrupnaturalgascompressorstationofThyssengasGmbH


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Berlin Brandenburg International Airport (BER): Extension of Taxi-way B and Static Display Area for the Berlin Air Show, Germany

WiththeupcominglaunchoftheBerlinBrandenburgInternationalAirport(BER)in20�2,theexhibitioncentreanddisplayareasusedsofarforthebiennialBerlinAirShow(ILA)willnotbeavailableanymore.

Asaresult,anewStaticDisplayArea(SDA)willbeconstructedinthewesternpartoftheAirportnexttothefuturefairgrounds.TheStaticDisplayAreawillbeconnectedtotheAirport’staxiwaysystemviatheextensionoftaxiwayBandtheconstructionofnewstubtaxiwaysMandM�.

TheBerlinAirportsCompany(FlughafenBerlin-SchönefeldGmbH)awardedDorschInternationalCon-sultantsGmbHwiththeplanning,

TaxiwayimprovementsdesignedbyDorschaspartoftheprojecttocon-necttothefutureStaticDisplayAreaincludedtheextensionoftaxiwayBaswellastheconstructionofnewstubtaxiwaysMandM�(foratotalof7�,000sqm).

Taxiwaysarerealizedinconcretewithasphaltshoulders,andincludetheassociatedinfrastructurerequired(drainage,electricalsystemsetc.).

Theservicesalsoincludedthenecessaryadjustment/relocationoftheairportfenceandassociatedperimeterroad.

TheserviceswerecompletedbyDorschsuccessfullyandonschedule,enablingBerlinAirportstobeginwiththeconstructionworksonSeptember�st,20��.

designandconstructionsupervisionservicesfortheStaticDisplayArea(asGeneralPlanner)inDecember20�0andFebruary20��,respectively.

TheprojectoriginatedinthedecisionbyMesseBerlinGmbH(organisingtheILAincooperationwiththeGer-manAerospaceIndustriesAssocia-tion)tomaintaintheAirShowattheBerlinBrandenburgAirportbeyond20�0.

ThenewStaticDisplayAreawillbelocatedontheairsidearea,tothesouthofandadjacenttothefutureBerlinExpoCenterAirport(locatedlandside).

Coveringanasphaltedarealofap-proximately28,000sqm,theStaticDisplayAreawillserveasaspecialpurposeareaontheairport,tobeusedexclusivelyforexhibitionpur-posesduringfairs(e.g.foraircraftandequipmentsduringtheILA).

AerialviewofconstructionsiteofnewBerlinBrandenburgInternationalAirport(BER),intheforegroundtaxiwayB

�8

Thebuildingowner’smaingoalistoaligntheFrankfurtAirportCityforshortroutes,worldwidenetworkingandinternationalspirit.

Thisincludesamasterplanforurbandevelopment,superbarchitectureandlotsofgreenery.–GatewayGardenswillbeoneofthetop-flightaddressesinCentralEuropefortop-flightcompaniesfromallovertheworld.

Inthecourseoftheplanningthedevelopmentofthecompletearealwillbenecessary.

Thiscomprisestheplanningofthedevelopmentareawithapproximate-ly2,�00mofstreets,fourcrossroads,onemotorwayandoneA-roadjunction.

Furthermore,thegas,water,sewagewater,communicationandpowersupplyaswellasdraininginstallationshavetobeensured.Twobridgesareapartofthedevelopmentzone,too.

ThecolleaguesoftransportandinfrastructuredivisionofDorschInternationalinhavebeenappointedwithobjectplanningtrafficfacilities,theinnerdevelopmentwithtwolinesandmedianstrip,roundabouttrafficsquares,crossroads,footandcyclewaysaswellasdeliveringroads.

Amongstthis,theaccesstothemu-nicipalstreetshastobedeveloped.

Theservicescomprisethelocalsitesupervisionaswellasthesuperiorsitesupervisionofthirdparties.

Airport City Gateway Gardens at Frankfurt Intl. Airport, Germany

Onalandsizeof��hectares(that’sequivalentto�0footballfields)inthenorthofFrankfurttherealestatecompanyGatewayGardensisdevel-opinganAirportCityuntil202�.Theareal,whichissurroundedbystreets,willaccommodate700,000m2floorareasandofferofficesandmeetingroomstoaplentyofcompanies.

Amongstthis,manyretailtradeandgastronomyzonesaswellasfurtherusableareaswillbedevelopedthere.

GatewayGardensatFrankfurt/MainInternationalAirport-accessroadstoVorlarareal

AirportCityGatewayGardens,viewdirectionFrankfurt/Main


�9

European Central Bank in Frank-furt / Main, Germany

InFebruary20�0theconstructionoftheheadquartersoftheEuropeanCentralBank(EZB)startedonthearealoftheformermainmarkethallinFrankfurt/Main.

OnEZBarealtheentiretrafficfacili-tiesaswellasdirectjunctionstothelocalroadsystemhavetobedevel-opednorthandeastofthearea.

Furthermore,theobjectplanningofengineeringworksforde-wateringoftheallotment,whichwillhappenviaseparatesewagesystem,takeplace.Rainwaterwillbeusedaswaterfordomesticusesuchasirrigation,clean-ingandtoiletflush.

ThecolleaguesofthetransportandinfrastructuredivisionofDIWies-badenhaveprovidedfollowingservicesforthedevelopmentarea:

• Approx.�,�00mroads(twolines,resp.firebrigadedrivearound)

• Twojunctionstothepublicroadnet

• Supplyanddisposalofgas,water,sewageviaseparatesewagesystem

• Powersupplyandcommunications• Furtherdrainsystems• Coordinationofotherconsultants• Tracecoordinationofcableassem-

bly

Thescopeofserviceincludesthelocalsitesupervision,too.

Theprojectwhichhasatotalvolumeof€�00millionandbuildingcostsof€�0millionwillbefinishedin20�4andisalreadyoneofthemostspectacularobjectsofthebuildingindustry.Weareproudtobeapartofit.

Traffic Engineering Projects in Mainz, Trebur, Bonn and Munich

FromJune20��tillSeptember20��Dorschhasacquirednumeroustrafficconstructionprojects.Wewereas-signedanewprojectbasedonatraf-ficanalysiswithanalternativesstudywehaddonesomeyearsago.ThisprojectconcernsanotheralternativeofthebypassTreburfortheprelimi-narydesignofthetrafficplant,thenoiseprotectionsurveyandanaircontaminationsurvey(MIuS).

TheassignmentwasduetoourgoodworkingqualityandthegoodrelationshiptothemunicipalityofTrebur.

TheCityofMainzassignedDorschthepreliminarydesignforthehandi-cappedaccessibleextensionof��busresp.tramstationsin2008.Theplanningwassuccessfullycompletedin20�0.

Astheclientwasverysatisfied,Dor-schwasalsoassignedthefollowupprojectforthedetaileddesignofthebusstationsinAugust20��.

Duetoourcontinuousdecadelongcooperationwiththemunicipalau-thorityBonn,wehavebeenaskedtodoacostsharingonthebasisofthefinalaccountoftheprojectOB��4,ModelrenderingofEuropeanCentralBankattheMainriverbankinFrankfurt/Main

TypicalbusstopinMainz

20

partlyconstructedbyopenbuildingmethodandpartlybycut-and-cover-method.Thetemporarydiversionsofthebicycleandpedestriantracksandtheaccessestothehousesalsohavetobeplanned.Thefivemainperiodsandnumerousin-between-periodsoftheprovisionalrouteinghavebeenchangedseveraltimesduringthecon-structionperiodbecauseofchangedproductionsituationsrespectivelyordersofconstruction.

TheADACexpertandpressofficerAxelArnold,whoalsohastopasstheconstructionsiteeverydayonhiswaytowork,hasbeenaskedabouttrafficrouteingandtrafficjamavoiding.Infact,MrArnoldhighlypraisesourservices:“It’samazinghowtheyman-agetokeepthetrafficquitefluentinspiteofallthetroubles.Awesome,howsmoothlythisflows…”.

ThestatementoftheADACalsoreflectsthepositivereactionstoDorschInternationalinthemeetingswiththefederateRoadConstructionauthoritiesandHighwayauthoritiesconcerningthetrafficrouteing.

FortheDorschGrouptheextensionoftheMittlererRingisoneofthemostchallengingandextensivetraf-ficprojectsofthelastdecades.

Development Areas Mönchhof, Habsburger Karree and Gateway Gardens in Frankfurt, Germany

FortheexternaldevelopmentoftheMönchhofareaare-designwasde-cidedforphase2till6oftheservicesastherewerechangesinthebasicprinciplesoftheexistingdetaileddesignandservicedescriptionofthetrafficplantandthedrainage.Atthebeginning,aturboroundaboutwithtwobypasseswasplanned.However,atrafficanalysisupdatedthesitua-tionandwehadtochangethede-signandthetenderingtoasignalledturboroundabout,atfirstwithoutlighting.Thus,theroundaboutcanbeupgradedwithoutmuchado.

ADAC Compliments DI for Traffic Routeing at Mittlerer Ring South-west in Munich, Germany

TheSüddeutscheZeitungwritesabouttheproblemsofMunich’sdriversandcommuterswiththeper-manentroadworksofLuise-Kiessel-bach-PlatzanditsfutureextensiontothecrossroadsHeckenstallerstraße/Passauerstraßeinitsarticleaboutthe“monsterconstructionsitePassauerStraßeattheMittlererRing”fromNovember�0th,20��.

FromthebeginningofAugust2009,DI’sdivisionTransportandInfra-structurehasbeeninchargeofthetunnel,bridgesandroadplanningofthesouthwesternsectionandalsooftheprovisionaltrafficrouteingintheprojectcrossroads-freeexten-sionoftheMittlererRing.Duringthewholeconstructionperiodthetraf-ficwillberoutedintwothree-trackroadsaroundthetunnelwhichis

Berta-von-Suttner-Strassestationbe-causeofamomentarystaffshortage.WegainedanothermajorplanningandconstructionsupervisionprojectwiththeCityofBonn.Theprojectconcernsamajorurbanrenewalofsewers.

Thefocusoftheproject“Europa-strasse”isontheplanningoftheconstructionsequenceandthetraf-ficphasesduringtheconstructionperiod,asapropertrafficflowhasbeguaranteedduringthewholeconstructionperiodduetotheurbanlocationofthestreetanditsimpor-tanceforthecity’straffic.

Wewerealsoaskedforsupplemen-taryengineeringservicesconcern-ingthetrafficroutingplansfortheMunichringroad“MittlererRing”Southwestbytheconstructionau-thorityoftheCityofMunich.

Three-laneprovisionaltrafficrouteingbypassingthetunnelconstructionsiteatMittlererRinginMunich(©Rent-a-Drone)


2�

Duetointensiveacquisitionandagoodcooperationwewereassignedthesitesupervisionforthedevelop-mentforthefirstconstructionphaseoftheturboroundaboutinMönch-hofarea.

FraportRealEstateMönchhofGmbH&Co.KGaskedustosuperviseandcoordinatetheconstructionoftheinfrastructure.Astheprojectwillbeconstructedinsections,thechancesaregoodthatwemightbeassignedfollowupprojects.

AnotherprojectisconsultingservicesfortheHabsburgerKarreeinFrank-furt/Main.Wegatherallthemediafromthemediaoperatorsaroundtheconstructionsiteandimplementtheminanewalignmentplan.

DIwasassignedtheconsultingservicesfortheRotexskyscraper(DBSchenker)intheAlphaquarterinthedevelop-mentprojectGatewayGardens.

Forthepreponedbuildingapplica-tionthetrafficandmediaplanningmustberapidlysecured.

Four New Bridges for Friedrichs-dorf in Hessen, Germany

InadditiontotheexistingplanningcontractofthenewbypassroadFrie-drichsdorfL�0�7wewereassignedthedesignoffourbridgesaswaterductsofreinforcedconcretebytheASVFrankfurt.

Whenthetenderingstarted,theus-ageofAmcoThyssenprefabricatedsectionswasdiscussedasanalterna-tivetotheprefabricatedsectionsconcretesectionsbecauseofthecosts.DuringtheplanningperiodtheHes-sianAuthoritywouldnotacceptthissolution,butnow,theHessianTrafficAuthorityhasmadethisastandardsolution.Thus,wegainedafollowupcontractforthere-designofthefourbridgeswiththisnewsolution.

AfterintensiveacquisitionwiththeCityofKoblenz,wefinallyacceptedthebidfortwostructuresurveys.

TheworkswilltakeplaceinclosecooperationwiththeplanningofstructuralframeworkinWiesbaden.ThetwoexistingbulkworkswillbesurveyedinaccordancewithDIN�076.WeareveryhappythatwehaveenteredthissectorinWiesbaden.

ProceedingconstructionworksatturboroundaboutMönchhof

NightviewofcityquarterAlphawithRotexskyscraper(centre)inGatewayGardensatFrankfurt/MainInternationalAirport(©G&P,OFB)

WaterductofreinforcedconcretewithcorrugatedsteelprofileatnewbypassroadFriedrichsdorfL�0�7

22

Dorsch International Amman

Water Loss Reduction for Middle Governorates Balqa and Madaba, Jordan

TheministerofWaterandIrriga-tionEng.MousaThafiAlJamanihassignedanagreementtopreparethestudy,designandsupervisionfortheWaterLossReductionmiddlegov-ernoratesBalqaandMadabawithDorschGruppeonNov.27th20��attheMinistrybuilding.

Theministerexplainedthattheprojectofatotalvalueof€�4millionconsistsoftwophases;thefirstwhichwillwassignedtodayatavalueof€�.7millionandforaperiodof�6monthswhichconsistsoftheprepa-rationofstudies,designsandprepa-rationofthetenderdocumentsinadditiontothesupervisionofalltheprojectworks;andphasetwowithavalueof€�2.�millionfor24monthswillconsistcarryingoutthenecessaryconstructionworkandtoaccom-plishtheprojectgoals.Additional��monthsarescheduledforfollowingupandmonitoringtheeffects.

Mr.Jamaniaddedthattheprojectaimstorehabilitateandmodernizethemainandthesecondarywaternetworks,inadditiontothehousewaterconnectionswhichareinneed

ofrenovationaswellasdividingthewaternetworkstothedistribu-tiondistrictsandtosuitablepres-surizeddistrictswherethisdistrictwillbesuppliedbygravityratherthanpumpingwhichwillreducethepercentageofnotcalculatedleaks.Thiswillimprovethewatersupplyforthesedistrictsandreducethecostoftheusedenergy.

Theprojectisco-financedbytheKfWGermanDevelopmentBankwith80%or€70milliontogetherwiththeJordaniangovernmentofferingtheremaining20%whichis€�7.�million.

Thisprojectisbasedontheabilityoftheconsultancycompanyinchoos-ingthesuitablesolutionsandworkswhichwillinsurethewaterlossreductionforavalueof20%fromtheexistingpercentageforeachgovernorate.Thereforetheconsult-antshallstudyandevaluatethewaterlossreductionpercentageandshowthebenefitsgainedfromthisprojectafterprojectimplementation.

TheprojectshowsthedistinguishedrelationbetweentheHashemiteKingdomofJordanandthegovern-mentofGermany,bothtogetheraimingtoimprovetheenvironmentalandwatersituationinJordan.

BDC Berlin

BDC Improves Infrastructure of the Metropolitan Area Hamburg, Germany

Hamburgisadynamicallygrowingcity,andthesurroundings,theso-calledMetropolitanAreaisprofit-ingbythisdevelopment.However,thewholeareahastodealwiththegrowingtrafficvolume.

Thus,BDCissuccessfullycontribut-ingtotheplannedinfrastructuremeasures,whichwillimprovetheroadnetwork.Agoodexampleisthe“WesternBypassPinneberg”.

Inthe�970’sideasfortheimprove-mentofthemajorroadnetworkinPinnebergcameupforthefirsttime.Sincethen,atrafficdevelopmentplanhasbeenpreparedbasedonsurveysbyDorschConsultwhich,amongstotheritems,haveplannedawesternbypassforthetownofPinneberg.

TheofficeinHamburghasbeenworkingontheprojecteversinceandhassucceededinfinishingitsexecutionthisyear.

Inadditiontotheoverallplanningservicesthisprojectalsoincludedtopographicalsurveying,airpollutionsurveysandextensivenoiseprotec-tionsurveys.BDCaccompaniedthecustomerduringthedifficultprocessofofficialplanningapproval,withapprovalgivenin20�0.Inthecourseoftheyear20�0

BDCwasassignedthedetaileddesignforthetrafficfacilitiesincludingroadtrafficregulationsandsignpostingaswellasplanningservicesfor4bridges.

The“WesternBypassPinneberg”issituatedbetweentheL�06(Mühlen-strasse)andtheL76(QuickbornerStrasse)withaccesstothefederalhighwayA2�.Thetotallengthwillbeapproximately�km.

TheDIAmmancolleaguesIyadAl-Qassir,MariaSchedayandStephanKugleratwork


2�

Thisbypasswillpromotethecity’sdevelopmentandwillrelieftheurbanroadnetofPinneberg.

ThenewroadwaywillbeconnectedtotheregionalmainroadL�07(Pris-dorferStrasse).

ThefirstsectionhasalreadybeenapprovedandconstructeduptoMühlenstrasse.

Alongsidetheconstructionofthedouble-trackedroadwithbicycletracktheprojectincludessevenroadcrossingswithandwithouttrafficlightingfacilities,overandunderroadpasses,acarparkfor76vehi-cles,activenoiseprotectionaswellasroaddrainagewithraindetentionbasinandseparator.

Theconstructionofthewesternby-passalsoincludestheconstructionoffourbridges,twoofwhichhaveclearspansofover�00metres.

Overpass�willleadacrosstheriverPinnau(federalwaterway)andOver-pass�willleadacrossarailwaytrackoftheDeutscheBahn,anurbanroadandsomeparkingspaces.

Planningservicesincludethedesignforbridgesandforstructuralframe-workintheworkphases2,�and6.

Thepreliminaryplanningincludedextensivestudiesofalternatives.

Herearesomeimportantdesignparameters:• PinnauRiverBridge:Clearspan

ofapprox.�47moverthetidiallyinfluencedPinnau(federalwater-way)withadifficultlandtenuresituation.

• BridgeleadingacrossarailwaytrackoftheDeutscheBahnandoverZiegeleiweg:Clearspanofapprox.�08m.Railwaytrackwithheavytraffic,overheadtractionlinehastobelowered.

Elevatedtrackandretainingwallstosavespaceincommercialarea.

• Bridgeoverthewesternbypassinconnectionwiththeroadnexttothefishponds.Constrictedroom.

Totalcostswillbeapprox.€2�million,€7millionofwhichwillbespentfortheengineeringworks.

MetropolitanareaHamburgwithElberiver

24

Reconstruction of a Combined Sewer in the City Centre of Rostock, Germany

Project

EURAWASSERNordGmbHhasbeentheoperatingcompanyofthewaste-waterplantoftheWarnowWaterandSewageBoardoftheHanseaticCityofRostockandoftheneighbour-ingcommunitiesforyearsandhaseversincefacedavarietyoftasks.

Oneofthecompany’smainfocusesisthereconstructionoftheurbandrainnetwork,andithasfoundanimportantpartnerfortheplanningandconstructionsurveillanceandtheexecutionoftheextensiveanddemandingreconstructionsworksinBDCDorschConsult.

IntheCityofRostocktheoldandhistoricalcityareasarepartlydrainedbyacombinedsystem,whichmeansthatthewastewaterandrainwa-terisdrainedinoneseweratthesametime.ThecombinedsewerinDoberanerStrasseislocatedinthecitycentreoftheHanseaticCityofRostockandprovidesthedrainageofwastewaterandrainwaterforagreatpartofthecitycentretowardsthesewageplant.Theexistingcollectiondrainwasbuiltin�9��asaboxsectionwithadryweatherchannel.

Asurveyshowedthatreconstructionisnecessarytoremedythedamagesatthecollectiondrainoveralengthofapprox.�40m.Otherwisethesta-bilitycouldnotbewarranted.

Design

Thisiswhyafastsolutionwasneces-sary.BDCwasthereforeassignedthedesignofthereconstructionwithUweWetzel(headofthedepartmentforsanitaryenvironmentalengineer-ing)astheprojectmanager.

Theplanningofreconstructionworksonasewerinapubliccitycentreareainvolvesavastamountofcriteriaanddiscontinuitieswhichmustbetakenintoaccount.Thisprojectcanbecon-sideredtheprimeexamplefordesignandworkswithhighlycomplicatedandspecialrequirements,fortheex-istingcombinedsewerislocatedun-deradouble-trackedtramlinewithahightrafficvolume:approx.everythreeminutesatramdrivesthroughDoberanerStrasse.Alongsidethehightrafficvolumethemainproblemwasalsothetightlyarrangeddisposalandsupplylinesbelowgroundwhichhadtobetakenintoaccountduringtheconstructionworks.

Itsoonbecameobviousthatatechni-callyandeconomicallysensiblesolu-tionhadtobefoundbasedonworks

ofdifferentcomplexengineeringareasandthereforeseveralareasofexpertiseoftheBDC.

Thus,thefollowingareaswerecom-pletelycoveredbyBDCbysettingupthefollowingprojectteams:• Sanitaryenvironmentalengineer-

ingwithexpertiseinreconstructionworks

• Trafficengineeringforroads• TrafficEngineeringforrailway

facilities• Trafficengineering• Constructionengineering

Reconstruction method

Toremedythedamageandtoensurethestabilityofthefacilitiesthedesignplannedareconstructioninashort-tube-liningmethod.

Forthismethodprefabricatedtubesareassembledintheexistingsewerandtheremainingspacebetweenthenewandtheexistingtubesisfilled.Thus,anewstabletubeinsidethetubeisbuilt.

Theprivateconnectionsarefastenedonafterthereconstructionworks.

Teamwork

Fortheexecutionofthemainrecon-structionworksitwasnecessaryto

TopviewofconstructionpitforcombinedsewerinRostock


2�

ensureseweroperation.Thereforetheteamforsanitaryenvironmentalengineeringdesignedadeviationsys-temforthemaincollectoraswellasawastewatermainpumpingstationforupto�00litresofwastewaterpersecond.Thus,thereconstructionworksattheexistingsewercouldbeexecutedinadrysurrounding.

Aspublictransportoperationwastobeensured,itwasalsonecessarytofindasolutionwhichenabledade-viationofthetrackwithouttheneedforaveryexpensiverailreplacementtransport.

TheteamledbyWolfriedTredesucceededinfindingthiseconomicalmethodbyusingreversingswitches.Becauseofthelocationoftheconstructionpitnexttotheplannedtemporaldeviationtracks’prepara-tionandconstructionworksinthe9mdeepconstructionpitwerehighlydemanding,especiallybecausetheoperationofpublictransportwastobeensured.

Therefore,theteamconstructionengineeringledbyMarkusHeidencreatedaspecialsolutionwhichwasapprovedbytheinspectingstructuralengineeraswellasthesurveillanceauthority(theGermanFederalRail-wayAuthority).

ToensuretrafficandpublictransportoperationteamtrafficengineeringledbyKristianBock(headofdepart-ment)preparedanelaboraterouting,whichprovidedforthetrafficfacili-tiesaswellasfortheworksattheconstructionsite.

Additionally,oneoftheproject’smainchallengeswasthepreparationandthefollowingexecutionofaworkscheduleforallinterdependentworksofthedifferentdisciplinesin-volved(civilengineering,reconstruc-tion,catenaryconstructionandtrackconstruction).

Construction supervision

AfterallteamshadcompletedtheirindividualdesignsforasuccessfulexecutionoftheconstructionworksUweWetzelandFabianVolltookover,whowereinchargeoftheconstructionsupervision.Duringtheworkstheysucceededinalwaysensuringthehighestqualityintheworksinspiteofthechallengingcoordinationofalldifferentpartiesinvolved.

Becausetrafficoperationhadtobeensureditwasnecessarytoconstructthetrackdeviationaroundthecon-structionpitandtointerruptpublictransportoperationforaweekendduringconstructionandagainafter-wardsduringreconstructionofthedeviationtrack.

Ontheseweekendscivilengineering,trackconstructionandcatenarycon-structionwerepreciselycoordinatedsoastoensurepunctualconstructionworksandthuspunctualresumingofthepublictransportoperation.

InJuly20��thecombinedsewerinDoberanerStrassecouldbecom-pletedtolastthenext�0yearsonalengthof�40mafteraconstructionperiodofonlyapprox.fourmonths.

Constructionworksatthedraw-inpit

EstablishmentofatemporarytramwayrailbypassduringconstructionphaseinthecitycentreofRostock

26

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Imprint

IngSightMagazine©20��DorschGruppe

Publisher:OlafHoffmannLayout:GerhardHabingerContact:[email protected]

We’dliketothankallauthorsofthisedition(inorderofcontributions):HanyLabib,AlexanderGoertz,Dr.RichardVestner,MichaelSchleusener,SusannePahnke,ReinholdWeis,AymanHaikal,AshrafAlModwahi,AdelAlDeeb,AndreasSeiler,ErolUlusan,StephanRudolf,JoachimHaab,StefanHauser,ChristophWedlich,IyadAl-Qassir,MartinSteenbuck,CharlesBlackburn,UweWetzel.

Pleaseconsideryourenviron-mentalresponsibilitybeforeprintingthisnewsletter.

bringing visions to life. Dorsch Gruppe.

ingsight 09 - december 2011

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