Check the stability of the given dam (Fig.Q.2(c)) by Article
4.13 given in the 2nd image
Check The Stability Of The Given Dam Fig Q 2 C By Article 4 13 Given In The 2nd Image 1 (118.62 KiB) Viewed 53 times
4.13 Stability of a Dam In Arts. 4.11 and 4-12, we have derived a relation which gives us the point in the base of a dam, through which the resultant cuts the base. In these articles, we have not discussed the importance of this point. As a matter of fact, the point in the base, through which the resultant cuts gives us very important information and helps us in finding the stability of the dam. e.g. 1. To safeguard the dam against overtuming, the resultant must pass within the base. 2. To avoid tension at the base, the resultant must pass through the middle third of the base. 3. The maximum stress developed at the bottom of the dam should be within the permissible stress of the site. 4. To prevent sliding, the maximum frictional force (i.e., 4 x W, where u is the coefficient of friction and W is the weight of the dam) should be more than the horizontal force P.
Cheek the stability of the dam shown below in Fig. Q.2(c). Take unit wt of dam material as 22.5 kN/m². 1.5m f.0.6 x? 18m 15m 4m Fig.Q.2(c)
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