hecras other features (2) hecras sxva maxasiateblebi (2) by g. parodi wrs – itc – the...

HECRAS Other Features (2)

HECRASsxva maxasiaTeblebi (2)

by G. ParodiWRS – ITC – The Netherlands

g. parodiWRS-ITC- niderlandebi

Cross Section Interpolation

ganivi kveTis interpolacia

Multiple Plans

ramodenime gegma

Supporting Pictures

suraTebis mxardaWera

Other Features of HEC-RAS- part 2HEC-RAS-is sxva maxasiaTeblebi - meore nawili

Cross Section Interpolationganivi kveTis interpolacia


Sometimes it is necessary to supplement surveyed cross section

data by interpolating new sections between two surveyed sections

xandaxan saWiroa SevavsoT gamokvleuli ganivi kveTebis

monacemebi, ori arsebuli ganivi kveTis interpolaciis

saSualebiT.

Typically needed when the change in velocity head is large.

HECRAS detects this by comparing conveyance values between

two sections.

rogorc wesi am operaciis Catareba saWiroa maSin, rodesac

gvaqvs mniSvnelovani cvlileba gadazidvis zewolaSi.

HECRAS-i gamoavlens amas ori seqciis Soris arsebuli

gadazidvis monacemebis Sedarebis gziT.

Geometric interpolation is accomplished by linearly interpolating between elevations and stations along “cords”geometriuli interpolacia xorcieldeba, horizontebis gaswvriv mdebare sadgurebsa da simaRleebs Soris xazovani interpolaciis saSualebiT.

2 Options – 2 parametri

Interpolate a reach (more than 2 cross-sections)

gawvdomis interpolacia (2 ze meti ganivi kveTi)

Between 2 cross-sections

2 ganiv kveTs Soris


1. First coordinate of cross section

2. ganivi kveTis pirveli koordinati3. Left bank (required)

4. marcxena napiri (savaldebuloa)5. Minimum elevation point in main channel

6. minimaluri simaRlis aRmniSvneli wertili ZiriTad arxSi

7. Right bank (required)

8. marjvena sanapiro (savaldebuloa)9. Last coordinate of cross section

10. ganivi kveTis bolo koordinati

Cross Section InterpolationMaster Cords - 5 Defaultsganivi kveTis interpolaciaZiriTadi kvanZebi- 5 aucilebeli piroba

Cross Section InterpolationMaster Cords ganivi kveTis interpolaciaZiriTadi horizontebi

Be Aware Of What The “Default” Is DoingviyoT informirebuli, imaze Tu ra keTdeba “winapirobis” mixedviT

User can establish more Master Chords to prevent mis-interpolations

momxmarebels SeuZlia gamosaxos meti ZiriTadi horizonti raTa aaridos Tavi mcdar interpolacias

Adding Master Chords to InterpolationZiriTadi horizontebis damateba interpolaciisas

An adequate interpolation adding master chordsadekvaturi interpolaciisas emateba ZiriTadi horizontebi

Cross Section Interpolation: Minor Cordsganivi kveTebis interpolacia: meoradi horizontebi

qvedadinebis seqcia

zedadinebis seqcia

bolo koordinatipirveli koordinati

interpolirebuli seqcia

marjvena sanapiromarcxena sanapiro

gadmobruneba

Automatically generated by program avtomaturad yalibdeba programis mier

Stations are determined using proportional distances

between master cords sadgurebi ganisazRvreba ZiriTad horizontebs Soris proporciuli

distanciis gamoyenebiT

Number of minor cords = sum of coordinates in bounding

cross sections minus number of master cords meoradi horizontebis raodenoba = mosazRvre ganiv kveTebis

koordinatebis jams minus ZiriTadi horizontebis raodenoba

Cross Section Interpolation: Minor Cordsganivi kveTebis interpolacia: meoradi horizonti

Cross Section Interpolation: Roughness Coefficientsganivi kveTebis interpolacia: xaxunis koeficienti

4 default master cords (same as geometric minus the minimum channel elevation)

4 winapirobiT miRebuli ZiriTadi horizonti (igivea rac,

geometriulad gamovakloT kalapotis minimaluri simaRle)

Minor cords added at other locations if more than 3 ‘n’ values at either cross sect.

meoradi horizonti emateba yvela im adgilas, sadac mniSvneloba

metia vidre 3 ‘n’ yovel ganiv kveTze

Otherwise same as geometric interpolation

sxva SemTxvevaSi igivea, rac geometriuli interpolacia

Cross Section Interpolation: Other ganivi kveTebis interpolacia: sxva

Other features which are interpolated: downstream reach lengths, main channel

bank stations, contraction and expansion coefficients, normal ineffective flow

areas, levees, and normal blocked obstructions

maxasiaTeblebi, romelTa interpolacia xdeba: qveda dinebis gawvdomis

sigrZe, ZiriTadi kalapotis napiris sadguri, kumSvis da gafarToebis

koeficientebi, normuli araefeqturi dinebis regionebi, dambebi da normuli

gamavlobis dablokva.

Normal ineffective flow areas, levees, and normal blocked obstructions are

interpolated only if both bounding cross sections have them.

normaluri araefeqturi dinebis zona, dambebi da normuli dablokili

gamavlobis Semcirebis interpolacia xdeba mxolod im SemTxvevaSi, Tu

orive mosazRvre ganiv kveTas aqvs is.

Can interpolate between 2 cross sections or entire reach

SesaZlebelia interpolacia 2 ganiv kveTi Soris an srul gawvdomaze.

Multiple PlansHEC-RAS - ramodenime gegma

Suggested Suggested Reading:Reading:

Chapter 5 of HEC-Chapter 5 of HEC-RAS User’s ManualRAS User’s Manual

rekomendirebuli literatura:

HEC-RAS-HEC-RAS-is saxelmZRvanelo Tavi 5

HEC-RAS - Multiple PlansHEC-RAS - ramodenime gegma

proeqtis faili: failis saxeli. prj

geometriuli monacemebifili saxeli. g01



damyarebuli dinebis monacemebifailis saxeli. g01

gegma 1fili saxeli. p01



gauSvi faili 1fili saxeli. r01



Sedegi 1fili saxeli. o01



proeqtis monacemTa failebis sqema


Suggested Suggested Reading:Reading:

Chapter 5 of HEC-Chapter 5 of HEC-RAS User’s ManualRAS User’s Manual

rekomendirebuli literatura:

HEC-RAS-HEC-RAS-is saxelmZRvanelo Tavi 5

Able to compare plans in tables:

SesaZlebelia gegmebis Sedareba cxrilis saSualebiT




SesaZlebelia SevadaroT gegmebi cxrilebis saSualebiT


SesaZlebelia SevadaroT gegma cxrilis saSualebiT:


As well as in profiles, cross-sections, etc.:

iseve rogorc profilebi, ganiv kveTebi da sxva..:


Supporting PicturessuraTebis mxardaWera

Supporting PicturessuraTebis mxardaWera

A picture can be “attached” to a cross section to help in documentation of the data.

SesaZlebelia suraTebis mimagreba ganiv kveTebTan, rac daxmarebas gagviwevs monacemTa bazebis dokumentaciaSi.

A picture can also be “attached” to the river schematic to assist in documentation.

SesaZlebelia aseve suraTebis mimagreba sqematur gamosaxulebasTan, rac gamosadegia monacemTa bazebis dokumentirebisas..

Example - Cross-SectionmagaliTi – ganivi kveTi

Example - River SchematicmagaliTi - mdinaris sqematizacia

Log Filesregistrirebis failebi

Program will write notes to a file as it performs the computations.

programa Tanmimdevrulad Caiwers gaangariSebebis da

operaciis msvlelobis yvela moqmedebas Sesabamis failSi.

10 different levels of output.

Sedegebis 10 gansxvavebuli done.

Files can get extremely large if higher levels are selected.

SeiZleba miviRoT eqstremalurad didi zomis failebi, Tu

SevarCieT gamoangariSebis maqsimaluri done.

Generally not necessary unless unusual answers are given by the program.

rogorc wesi araa savaldebulo, Tu programam ar mogvawoda

uCveulo, mcdari Sedegi.

Scour at bridges

gamorecxva, erozia xidebTan Lateral weirs

lateraluri jebirebi Ice-covered rivers

yinuliT dafaruli mdinareebi Cross-Section points filter

ganivi kveTebis wertilebis filtri Fixed sediment elevations

naleqebis fiqsirebuli simaRle Pilot channels

piloturi nakadebi Setting ineffective flow areas to permanent

araefeqturi dinebis monakveTis ganxilva, rogorc permanentuli dinebis mqone monakveTis.

There are other options not discussed in this presentation:

arseboben sxva parametrebic, romelTa ganxilvac ar moxda am moxsenebaSi:

Other Optionssxva parametrebi

Any Questions?kiTxvebi gaqvT?

hecras other features (2) hecras sxva maxasiateblebi (2) by g. parodi wrs – itc – the...

Documents

surveyed cross section

cross sections

geometric interpolation

ze meti ganivi kvetibetween

new sections

parodiwrs itc

hecrassxva maxasiateblebi

proportional distances