Birendra Kumar Singh, Mani Mohan | International Journal of Geological and Geotechnical Engineering | Vol 2025, Issue 01 | pp. 11-19 | ISSN: 2581-5598
Abstract
Stability of slope is the dominant parameter for construction of Dam. Slope gives bottom width. More
bottom width gives stability of dam. Normally, the bottom width of dam is taken as twice times of top
width of dam (at least). Since maximum thrust of water is acting at bottom of dam (wh), where w = Unit
weight of water (1000 Kg/m3), h = depth of water in meter, hence bottom width is taken as maximum
as compared to top width. Normally, slope of dam is taken as 30o. Thrust of water produces overturning
moment of base, of which magnitude is ๐คโ/2/2๐ฅโโ3[where h = depth of water & w = unit weight of water
in Kg/m3]. This overturning moment is balanced by restoring moment produced by weight of dam ๐๐ฅ
[ where w = weight of dam( ๐โ+๐)/ 2โ๐ฅโโ1โ๐ฅโ1โ๐ฅโ1850โ๐พ๐] where a = top width of dam, b = bottom width
of dam, h1 = height of dam & 1850 Kg/m3 is unit weight of masonry). Restoring moment should be more
than overturning moment for stability of dam ๐ฅ = C.G. distance from face of dam ๐ฅโ=(โ๐2+๐๐+๐2)/3(๐+๐)
.
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How to cite this article
@article{SinghBK2025,
author = {Birendra Kumar Singh and Mani Mohan},
title = {Assessment of Dam},
journal = {International Journal of Geological and Geotechnical Engineering},
year = {2025},
volume = {2025},
number = {01},
pages = {11--19},
issn = {2581-5598},
url = {https://journalspub.com/publication/uncategorized/article=20691}
}