IS 10430 (2000): Criteria for Design of Lined Canals and ...

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3 1 AUGUST 2005 TOIS10430:2000 CRITERIAFORDESIGN OFLINED Canals AND GUIDANCEFORSELECTIONOFTYPEOFLINING(FU'st Revision)[Page1,clause3(r)]- Substitute the following for the existing:'r)Availability of suitableconstructionmaterialwithineconom icleads,such as:1)Cementof requisitequality;2)Buildinglime of requisiteclass;3) Flyash for use aspozzolana;4)Suitable clay formanufactureofcalcinedclaypozzolana;5) Coarse and fineaggregates;6)Soil of suitable quality formanufactureofbumtclaytiles/bricks;7)P ulverizedfuelash-limeand/or clay flyashbuildingbricks;and8)Stones ofrequiredsize andquality.'IPage3,clause6(a)]-Substitut e the following for the existing:'a)RigidLining1)Stone-pitchedli ning;2)Burnt clay tile orbricklining;3)Burntbricks orpulverizedfuelash-limebricksorburntcla yflyashbuildingbricks lining;4)Precastcementconcrete/stoneslab lining;5)Cementconcrete tilelining;6)In situcement/limeconcretelining,7)Stonemas onrylining;8)Soilcement/soilcementand flyashlining;9)Shotcretelining;10)Ferroc ementlining,and11) Asphaltic cement concrete IS10430:2000[Page4,clause6(b)(l)]-Substi tute the following for the existing:1) Geomembrane likeHighDensity Polyethylene (HOPE), Polvinylchloride (pVC), Low Density.

4 Polyethylene (LDPE) with covercomprising layer of bentonite with adequate earth/bumt clay tile brickor pulverized fuel ash-lime brick or burnt clay flyash buildingbrick/precast cement concrete.'(WRD13)ReprographyUnit, BlS,NewDelhi, India2 Irrigation Canals and Canal Linings Sectional Committee, WRD 13 FOREWORDThis Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalizedby the Irrigation Canals and Canals Linings Sectional Committee had been approved by the WaterResourcesDivision of Canals is animportantfeature of irrigation projects as it improves the flowcharacteristicsandminimises the loss of water due to seepage.

5 The water thus saved can be utilised for the extension and improvementof irrigation. Lining of water courses in the areas irrigated by tubewells assumes special significance as thepumped water supply is relatively more costly. The reduced seepage also prevents rise of the sub-soil watertable and thus reduces the possibility of damage to the adjoining areas by water logging. Further, due toadoption of highervelocitiesin a Lined canal there is a saving in the cross-sectional area of the canal and landwidth required, withcorrespondingsaving in the cost of excavation and masonry works. It helps inretentionof shape of the canal. Lining also results inimprovementofcommandand larger working head standard deals with Design of Lined Canals .

6 However, before lining of a canal is decided,techno-economicjustificationfor the same should be established. selection of a particular type of lining should be arrived atbased on materials available and overall costvis-a-vissaving in seepage and forvarious types of lining shall becollectedand consulted before deciding on aparticulartype of generalguidelineswith regard to factors influencing the selection of the type of lining are given in thisstandard, for the assistance of the designer. But each project should be individually analysed taking intoconsiderationits peculiar standard was first published in 1982. The first revision has been taken up in the light of thecommentsreceived from the Irrigationdepartmentsof various states.

7 In this revision functions of lining and various typesof lining have been included. Changes in side slopes, free board, etc, have also been is no ISO standard on the subject. This standard has been prepared based on indigenousmanufacturers'data/practicesin the field in the purpose of deciding whether a particularrequirementof this standard is complied with, the final value,observed or calculated,expressingthe result of a test or analysis, shall be rounded off in accordance withIS2:1960'Rulesfor rounding off numerical values(revised)'.The number of significant places retained in theroundedoffvalue should be the same as that of the specified value in this standard.

8 IS10430:2000 IndianStandardCRITERIAFORDESIGNOFLINEDCA NALSANDGUIDANCEFORSELECTIONOFTYPEOFLININ G(FirstRevision)2 REFERENCES1 SCOPE3 NECESSARYINFORMATIONThis standard lays down Design Criteria for Lined canalsandpresentsguidelinesfor selection of type of other localconditions;Thicknessof iceformation(ifapplicable);Availability ofsuitableconstructionmaterialswithineco nomicleads, such as:k) Availability of skilled andunskilledlabour;m) Availability ofconstructionmachinery;n) Cattle traffic;p)q)r)I)Coarseand fineaggregatefor canal lining;2) Soil for makingtiles/bricks;and3) Stones ofrequiredsize,specificgravity andsoundnessfor stone )Cross-sectionsalongthecanalalignmentani ntervalsnot more than300m for auniformterrainand atcloserintervalsforundulatingterrain.

9 Thecross-sectionsshould extend at least10 metresbeyondthe limits of canalsectiononboth sides;e)Road andrailwaycrossings,cart/pedestriantrack s,drainagecrossings,etc;t)Natureandquant ityofsedimentlikely to betransported;g)Profileof soil up to at least half the full supplydepth or I mwhicheveris more, below the canalbed level along the canalalignmentat 500 mintervals. However, if anyvariationin soilstratais found, the spacing shall be at shorter usual soilpropertiesincludingpermeability,swel lingpressures,anddispersiveproperties;h) Saltcontentof the soil,speciallypresenceofsulphates,to bedeterminedat suitableintervals;j)Sub-soilwater level and its quality along thecanalalignment.

10 TitleCode ofpracticeforunderdrainageof Lined Canals (secondrevision)Guidelinesforlinin gofcanalsIIIexpansivesoils(secondrevisio n)-IS : 19959451 : 1994 NOTE -Suitable transmission loss ( mvs per millionsquaremetreofwettedperimeter)for linedcanaldependingupon the type of lining,climaticcondi-tions shall be asuitabledesign of a Lined canal andforselectionof type of lining thefollowinginfor-mation isnecessaryfor the entire length of the canal:a)Capacity-Capacityrequiredfor the canal toirrigatethecommanddependson thecroppattern,irrigationintensity,rotat ionperiod,waterrequiredduringcriticalper iod,trans-mission losses, etc. For fixing the canal capacity,a designstatement,or capacitystatementshouldbeseparatelyprepa red,reach aparticularreach should bedesignedfor themaximumdischargein that ,constituteprovisionsof the time ofpublicationtheeditionsindicatedwere valid.