Module 2 : Theory of Earth Pressure and Bearing Capacity
Lecture 6 : Introduction[ Section 6.2 Displacement Related Earth Pressure]
Now in case of full mobilization( / a), =, hence a correction factor of (34/38.29) is applied. In this way all other data for partial mobilization case are also calculated. In other words, for any other , the corrected = (the calculated for any ) * (the correction factor).
Finally all results are expressed in terms of two parameters viz.
y = [( /) /( / a )]
valid for 0<x<=1.
II
Rotation about top (RT)
Consider fig. 2.5 (b) a rigid retaining wall of height D is rotating about the top and the bottom horizontal displacement is denoted by Let,
assuming linear variation with depth,
The values of x and y thus obtained for various cases are shown in table 2.2 and it is found that all the points are falling within a narrow band with each point as an average of multiple points in one experiment.
A lower bound equation will provide a proper safe estimate of active earth pressure and hence the proposed relationship for translation mode is expressed as given below.
/ 
=
, hence a correction factor of (34/38.29) is applied. In this way all other data for partial mobilization case are also calculated. In other words, for any other 
, the corrected 
/ 
valid for 0<x<=1. 
Let, 
