comparison between different method of under water canal
TRANSCRIPT
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Comparison between different method of under water canal lining
Submitted By
Shivam Mittal
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Comparison Based on
1. Cost effectiveness
2. Installation and need of resources
3. Period of construction
4. Environmental Impact
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Methods Under Comparison
Conventional Method( lining by CC)
Clay Geosynthetic(CGS) Liner
Grouted Mattress(GM) Liner
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Cost Effectiveness
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Canal Section Under study
Slide Slope m=1Flow Perimeter P = (b+2*2½y) m = p meterLength of canal= 1km = 1000m
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CC Lining
For 100 m3/sec and above discharge thickness of concrete lining= 100mm = .1 m
And Concrete grade used M15 (Theory and design of irrigation structure- R.S. Varshney)
volume of concrete= 1000*0.1*p = 100p m3
Rate of M15 ready mix concrete= 3200 INR
Cost of CC lining= 3200*100p = 320000p INR
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CGS lining
• Area required = 1000*p
( neglect the CGS thickness)
Cost of CGS= 3$ /m2= 3*65 INR/m2
Cost of CGS lining= 3*65*1000p
= 195000p INR
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Grouted Mattress
Volume required= 1000*0.1*p m3
Cost of Grouted Mattress= 25 $ / m2= 25*65 INR/m3
Cost Of Grouted Mattress lining= 25*65*1000*p
= 162500 INR
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0
50000
100000
150000
200000
250000
300000
350000
1. Conventional method ( CC
method)
2. Clay Geosynthetic
Liner
3. Grouted Mattress
320000
195000
162500
Rate(INR)
Grouted Mattress provide a more overall cost effective application than other two lining methods.
Conclusion
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Installation and need of resources
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• CGS lining only require small equipment a minimum amount of labour for installation.
• CGS and Grouted mattress are factory manufactured so installation is easy but on site grouting process is needed in Grouted mattress.
• CGS and Grouted Mattress installation easily on difficult access or placement areas.
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• CC lining needs heavy equipment and dedicated man power.
• CC lining method has slow and complicated construction process.
• Thickness of CC and Grouted Mattress lining is very high.
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CGS Lining
Grouted Mattress Lining
Conventional Lining
Conclusion
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Period of construction
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CC Lining
GM lining
CGS lining
The period of construction of Conventional Lining(CC lining) takes more time as compare to CGS and Grouted Mattress lining.
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Environmental Impact
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One Truckload of CGS replaces up to…
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… 200 trucks of Cement Concrete
So significant decrease in noise, dust, sediment and non-point source pollution.
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References
• ATM environmental solution, USA
• Theory and Design of Irrigation Structure, R.S.
Varshney
• NPTEL online library, IITB
• Ashapura CGS manufacturing, India