@ Narasimharao - When you design a structure with Indian standards, it is always advisable to check the design with USBR and US Army and other codes, which are based on practical experince. 50 year and also 25 year old Indian Standard codes have lost their relevance due to fast improvements in technology. Also "IS 9451 : 1994 – GUIDELINES FOR LINING OF CANALS IN EXPANSIVE SOILS"is basically against basic principles of soil mechanics and I submitted corrected draft code in year 2003 (13 years back) but it has not been corrected by BIS so far. I doubt BIS, Central Water Commission and CSMRS has made it a prestige issue that how a field engineer can prove a IS code as wrong absurd, which was drafted by Professor R K Katti of IIT Mumbai. I complained to concerned Union Ministers Mr Ram Vilas Paswan and Ms Uma Bharati about inaction of BIS and CWC, but they took no action as far as known to me.
Published by Yogesh Agrawal, Director (retired), Minor irrigation schemes, Water Resources Department at Govt of Rajasthan
@ Narasimharao - When you design a structure with Indian standards, it is always advisable to check the design with USBR and US Army and other codes, which are based on practical experince. 50 year and also 25 year old Indian Standard codes have lost their relevance due to fast improvements in technology. Also "IS 9451 : 1994 – GUIDELINES FOR LINING OF CANALS IN EXPANSIVE SOILS"is basically against basic principles of soil mechanics and I submitted corrected draft code in year 2003 (13 years back) but it has not been corrected by BIS so far. I doubt BIS, Central Water Commission and CSMRS has made it a prestige issue that how a field engineer can prove a IS code as wrong absurd, which was drafted by Professor R K Katti of IIT Mumbai. I complained to concerned Union Ministers Mr Ram Vilas Paswan and Ms Uma Bharati about inaction of BIS and CWC, but they took no action as far as known to me.