LAYING OF CEMENT CONCRETE AND STONE SLABS LINING IN CANALS — CODE OF PRACTICE (Third Revision of IS 3873)
Document Title [Hindi] :
नहरों में सीमेंट कंक्रीट और पत्थर की स्लैब की लाइनिंग बिछाना — रीति संहिता (IS 3873 का तीसरा पुनरीक्षण)
Document Type :
Revision
Language :
English
Priority :
3
ICS Code :
93.160
Date of Project Approval :
20-12-2023
Standards to be Revised :
Sl.No.
Is No & Year
1
IS 3873: 1993
Standards to be Superseded :
Classification Details
Group :
Civil Engineering Design and Construction
Sub Group :
Hydraulic and other related structures
Sub Sub Group :
Canals and Cross Drainage works - Construction Design, Maintianance and seepage assessment
Aspects :
Code of Practice
Risk :
Low
Certification :
None
Short Commom Man's Title :
ITCHS Code :
Ministry :
Ministry of Jal Shakti
Sustainable development Goals :
Degree of Equivalence :
Indigenous
Identical/Equivalent Standards :
Organization Type:
Division Council Chairperson Approval Details
Sl.No.
Synosis Points
1
Lining of canals is considered an important feature of irrigation projects as it not only minimizes the loss of water due to seepage but also results in achieving considerable economy in the use of cultivable land which would otherwise be prone to waterlogging due to rise in water table. Further, the water thus saved can be usefully employed for the extension and improvement of irrigation facilities. Lining of water courses in the area irrigated by tube wells assumes special significance as the pumped water supply is relatively costlier.
2
Lining of canals permits the adoption of high velocities resulting in proportionate savings of the cross-sectional areas of the channel and waterway required with corresponding saving in the cost of excavation and masonry work, which may in certain cases offset completely the extra cost of lining. Also, the lining ensures stability of channel sections thereby reducing the maintenance cost. Lining of canals in erodible soils helps in maintaining the channel regime. Lining prevents rodents and other burrowing animals from digging holes in the embankments and causing canal breaches. The benefits that accrue from lining canals generally justify the initial capital cost and, because of this, there is now better appreciation of the need for lining on canals.
3
This revision (third revision) has been brought out to bring the standard in the latest style and format of the Indian Standards. In addition, the following major changes have been incorporated:
a) The title of the standard has been modified in accordance with the scope of the standard and text;
b) The definition of consolidation has been revised to improve clarity and enhance understanding;
c) The minimum grade of concrete prescribed for lining is M15;
d) The provision regarding the use of a mechanical mixer has been deleted;
e) Reference of standards published on polyethylene films and PVC geo-membranes have been provided;
f) New paragraph has been added in regard to selection of thickness of lining. An upper limit on the maximum size of aggregate to be used in canal lining has been introduced; and
g) The grade of plain cement concrete to be used for steps, as an alternative to safety ladders, has been revised to M15.