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DESIGNING RETAINING WALL

 
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shivani soman
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Joined: 29 May 2018
Posts: 7

PostPosted: Sat Jan 25, 2020 7:52 am    Post subject: DESIGNING RETAINING WALL Reply with quote

hello everyone,

I have a doubt in designing retaining wall while studying stability of retaining wall we find maximum and minumum pressure at the base by taking moments of wall parts like toe stem, heel, now the doubt is that in some books like Ramamrutham the moments are taken about end of heel slab, whereas in most of the books it is taken about end of toe slab so does that make any difference in the design.


also, it is always considered that base pressure under toe slab to be maximum,it is possible the other way that base pressure at heel is maximum in some case?

Looking forward for your help
thank you.
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es_jayakumar
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Joined: 24 Nov 2011
Posts: 1367
Location: Cochin

PostPosted: Sat Jan 25, 2020 3:19 pm    Post subject: Reply with quote

From the fundamental of Statics, we know that for a rigid body to be in equilibrium, the net force as well as the net moment about any arbitrary point  must be equal to zero. For stability calculation or computing the resultant  force, we can thus take moments about any point in the plane. Suppose you tend to take a stride forward. Will the maximum pressure be under your toe or heel ?  So long as the horizontal impulse (here, earth pressure) is in the direction of the toe, the maximum pressure will be under the toe only, I hope.

E S Jayakumar
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