geo-technical engineering - indian · pdf fileproject titled as "soil nailing for...

www.rdso.indianrailways.gov.in

Annual Report 2010-2011

GEO-TECHNICAL ENGINEERING

RESEARCH, DESIGN & DEVELOPMENT

Consultancy Report On Rehabilitation of Washedout locations Between Paliakalan-Dudhwa &Tikunia-Manjhrapurab Stations, Gonda-MailaniSection, Lucknow Division, North Eastern Railway

Consultancy Report on Construction of high Bankin Between Vinaiki-Sikara Stations, Jabalpur-Gondia Gauge Conversion Line in Nagpur Division,South East Central Railway

Consultancy Report For Geotechnical Problems OnExisting BG Line In Rangiya & Tinsukia Division, NF Railway

Consultancy Report on Review of BlanketThickness as per Guidelines and Specifications ofHigher Axle Load for New Line BetweenTarkeshwar-Bishnupur Section and DoublingProjects of Ambikakalna- Nabadwip Dham andKatwa-Patuli Sections, Howrah Division, EasternRailway

Consultancy Report On Rehabilitation of Weak

M.G. Track between Paliakalan-Dudhwa and Tikunia-Manjhra Purab stations on Gonda-Mailani section,Lucknow Division, N.E.Rly witnessed the problem ofwashing out of track embankment at many locations. Inprevious year also, the same locations were washed outdue to floods.

RDSO team visited the site to investigate the problemand suggest the remedial measures.

Observations were noted during the inspection onproblematic locations and soil samples collected fromthe site. Based on soil test results and observationsmade during inspection, final Consultancy Report No.RDSO/2009/GE: CR-137 was been prepared andissued to Zonal Railway.]

New alignment between Vinaiki-Sikara stations &Gauge Conversion Project between Jabalpur-Gondia ofNagpur division, South East Central Railway is underconstruction in which high embankment locations ashigh as 25.0 M exist.

Soil samples collected from various locations by railwaywere sent to RDSO for testing and slope designing.Slope stability analysis has been carried out with thehelp of 'SLOPE/W' software by taking the soilparameters obtained after testing. Accordingly,consultancy Report No. RDSO/2010/GE: CR-142 hasbeen issued to Zonal Railway with proposedrecommendations.

As per CTE's NFR letter no. W/344/LCW/LB/GT/Pt.II/W-1 (Loose) TD requested RDSO to investigate thetroubled locations of formation on Rangiya & TinsukiaDivisions of NFR on high speed link between JammuTawi and Dibrugarh due to bad formation requiringfrequent track maintenance.

RDSO team visited problematic locations. Soil samplescollected from the site have been tested at GELab/RDSO for different parameters. Based on soil testresults and observations noted during inspection,Consultancy Report No. RDSO/2010/GE: CR-141 wasprepared and issued to Zonal Railway.

CE/Con/Co-ordination/ER and CE/Con/W/1940/Pt.IV/ER, requested RDSO to review the thicknessof blanket of new line between Tarkeshwar-Bishnupursection & doubling projects of Ambika Kalna-NabadwipDham and Katwa-Patuli sections of Howrah Division,Eastern Railway as per "Guidelines and Specificationfor Design of Formation for HeavyAxle Load".

RDSO team along with railway officials inspected thesite of new line between Tarkeshwar & BishnupurSection & doubling projects of Ambika Kalna-NabadwipDham and Katwa-Patuli Section of Howrah Division.During inspection, observations were recorded & soilsamples were collected from the site for testing at GELaboratory of RDSO.

Soil samples collected from the site have been tested inGE Lab and Consultancy report No. RDSO/2010/GE:CR-0147 was prepared and issued to Eastern Railway.

has

View of Washed Out Locations

Earthwork between Tarkeshwar-Bishnupur and existingtrack between AmbikaKalna Nabadwip Dham

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Formation between Ballia & Bansdih Stations inChhapra-Aunrihar Section, Varanasi Division, NorthEastern Railway

Consultancy Report For Geotechanical Problemson existing MG Line between Phiding and MahurStations, N.F.Railway

Consultancy Report On Gauge Conversion onVillupuram-Vellore Cantt Section, Tiruchchirappallidivision, Southern Railway

Consultancy Report On Rehabilitation of WeakFormation Between Ballia-Bansdih Stations onChhapra-Aunrihar Section, Varanasi Division, NorthEastern Railway

Chief Planning & Design Engineer/NE Railway,Gorakhpur referred the problem of unstable formationbetween Ballia and Bansdih Stations to RDSO vide theirletter No. W/275/5/1/III/PtII/ BSB/W-4(A) and requestedto visit the site for carrying out detailed investigation andsuggesting further remedial measures for theredesigning of slope to make the high embankment inthe section safe. Accordingly, site was inspected byRDSO officials. Varius observations were recorded andsoil samples were collected for testing in GE Laboratoryat RDSO.

Based on site observations and soil test results,Consultancy report No. RDSO/2010/GE: CR-0144 wasprepared and issued to North Eastern Railway.

As per CTE/N.F.Railway's letter no. W/344/LCW/LB/GT/Pt.II/W-1/TK (Loose), RDSO officials visited theProblematic locations of sinkage of track at Km 84/9-

85/1 between Phiding & Mahur stations, LumdingDivision, N.F. Railway. Various observations were madeduring the inspection on problematic location and soilsamples collected have been tested at GE lab/RDSOfor various soil parameters. Based on site observationsand soil test results, the Consultancy ReportNo.RDSO/2010/GE:CR-0139 was prepared and issuedto N.F.Railway.

CE/C/S.Rly letter No. W/347/XXII/II/CN, referred sixlocations of the section to RDSO for investigation &suggesting remedial measures. Accordingly, RDSOteam visited all the locations for investigation andsuggesting remedial measures.

Based on site inspection details and soil test results ofsamples collected from site, the consultancy report No:RDSO/2010/GE:CR-0146 has already been issued toSouthern Railway.

Chief Planning & Design Engineer/NE Railway,Gorakhpur referred the problem of bad formation toRDSO vide his letter No. W/275/5/1/III/Pt II/BSB/W-4(A)and requested RDSO to visit the site for carrying outdetailed soil investigations and suggesting further

View of problematic location between Balliaand Bansdih Stations

View of problematic location between Phiding & Mahur Stations

View at problematic locations

View of problematic locations at site

Geo-Technical Engineering

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appropriate measures for redesigning of slope of highembankment in the section.

Accordingly, RDSO team inspected the problematicsite and collected the soil samples for testing in GELab. Based on soil test results and observationsrecorded from site, Consultancy report No.RDSO/2010/GE:CR-0144 has been prepared and isunder finalization.

Project titled as "Soil Nailing for Stabilization of SteepSlopes near Railway Tracks" was taken with IIT/Kanpurunder Rail Technology Cell.

A Presentation on the above project for RDSO officialswas made by IIT/Kanpur.

Project titled as "Reinforced Earth Design ofEmbankment and Cuts in Railways" was jointly taken upwith IIT/Kanpur under Rail Technology Cell. IIT/Kanpurhas already submitted the final report to RDSO.

The presentation on the above project for RDSOofficials was made by IIT/Kanpur.

ACase Study of Sub-Soil failure of railway embankmenthas been covers the soft soil whose un-drained shearstrength is less than 25 kpa. The success ofembankment construction on soft ground rests onproper planning, design, and construction methodologyand site supervision. However, this is usually easier saidthan done and therefore there are still repeatedgeotechnical failures of embankment constructed onsoft ground. The main factor of failure is poor bearingcapacity of subsoil and method of constructionemployed.

This paper presents the case history of all the three suchembankment failures which were investigated bygeotechnical engineering directorate in past. The cause

of failure, proposed remedial works and lesson learnthave been widely discussed.

A one day course on Reinforce Earth wall was organizedin RDSO by M/s Terre Armee, Sustainable Technology,New Delhi.

The course was useful & informative in understandingthat how the reinforced earth wall is constructed andhow it behaves using various technologies involved inits fabrication. Design aspects were also discussedduring the course.

All the officers and staff were present during the courseand the course waswell appreciated byall.

RDSO official conducted a field workshop on qualitycontrol test on earthwork for new 3rd line between Sakti-Jharedi, Jetha-Sakti and Champa-Baradwar stations onHowrah-Nagpur main line, Bilaspur Division, South EastCentral Railway. The field workshop was attended byofficers and supervisors of Construction departmentincluding engineers/supervisors from agencies involvedin construction of earthwork. The field compaction testsfor earth (soil and blanket) were also demonstrated atsite.

A Presentation was made by representative of M/sStrata Geosystems (India) Pvt. Ltd, Mumbai regardingvarious technologies adopted for soil stabilization suchas geosynthetics, geomembranes, geocells andgeogrids etc. The presentation has been found usefulfor Railway Engineers.

A presentation on "Reinforced Earth Wall" was

GE Project "Soil Nailing for Stabilization of SteepSlopes near Railway Tracks" under Rail TechnologyCell at IIT/Kanpur :

GE Project "Reinforced Earth Design ofEmbankment and Cuts in Railways" under RailTechnology Cell at IIT/Kanpur

A Case Study of Sub-Soil Failure of RailwayEmbankment

One day course on Reinforced Earth Wall by M/sTerreArmee, Sustanable Technology, New Delhi

Workshop on Quality Control tests on Earthwork fornew 3rd line on Howrah-Nagpur main line, BilaspurDivision, SEC Railway

Presentation on NeoWeb Solution by M/s StrataGeo-systems (India) Pvt. Ltd, Mumbai

Presentation on "Reinforced Earth Wall" by M/sTerreArmee Sustainable Technology, New Delhi

View of failed embankment constructed on soft soil

A view of workshop cum demonstration offield testing of soil at site


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organized in RDSO by M/s Terre Armee SustainableTechnology, New Delhi.

The presentation was informative and subservient inunderstanding the mechanism of reinforced earth wallfollowed by its post behaviour under varioustechnologies involved in it fabrication/construction.

All the officers and staff were present during thepresentation and presentation was well appreciated byall present.

A presentation on "Geosynthetics Solution in RailroadSystem" was organized in RDSO by M/s CheckmateGeosynthetics, Canada.

The presentation was useful & informative inunderstanding the various types of geosyntheticproducts used in rail road system.

All the officers and staff were present during thepresentation and presentation was well appreciated byall present.

M/s India Polyroads Private Limited, Gurgaon made apresentation on "Use of Soil Tech-III for stabilization ofsoil layer in formation" in RDSO.

The presentation was useful & informative inunderstanding that how the stabilization of base andsub-base layers of roads can be done using Soil TechMK-III Polymer. The presentation was attended by allthe officers and staff and was well appreciated too.

A presentation on "Soil Stabilization Technology- NewApproach to Indian Railway" was given byrepresentative of Otto Visen Technologies, Germany inRDSO.

The presentation was useful & informative inunderstanding that how the stabilization of base and

sub-base layers of roads can be done using lime.

Presentation was attended by all the officers and staffand was well appreciated.

During 2010-11, total of 105 soil samples werecollected from various sites of different railwaysand 1323 soil parameters were determined.

Eight consultancies were rendered to different ZonalRailways suggesting the best possible remedialmeasures for rehabilitation of weak formation during2010-11. The list of consultancies has been given inAppendix-I.

Lectures were delivered by GE Officials on"Design of Formation including Bank Profile,Slope Stability Analysis and Provision of Berms,Des ign o f B lanke t i nc lud ing La tes tDevelopments" & "Design of Cutting Slopesincluding case studies" at IRICEN, Pune from12.04.2010 & 16.04.2010 for Special Course on"Railway Formation & Geo-tech Investigations"for JS/SS/JAG & SAGrade officers.

Training of officers & staff of Construction &Open-line organization in geotechnicalaspects is a major thrust area and thisdirectorate is organizing regular trainingcourses for them at RDSO/Lucknow. During2010-11, eleven courses were organized atRDSO for off icers & superv isors ofConstruction & Open-line organization ofZonal Railway. The courses have been wellappreciated by the participant.

Performance of Geotechnical Laboratory :

Presentation on "Geosynthetics Solution inRailroad System" by M/s CheckmateGeosynthetics, Canada

Presentation on use of "Soil Tech-III forStabilization of Soil layer"

Presentation on "Soil Stabilization technology-NewApproach to Indian Railway"

P E R F O R M A N C E O F G E O T E C H N I C A LENGINEERING LAB

CONSULTANCY :

MANPOWER TRAINING

Deliberation of LecturesAt IRICEN, Pune :

Training Of Officers and supervisors ofConstruction & Open-line organization AtRDSO :

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geo-technical engineering - indian · pdf fileproject titled as "soil nailing for...

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