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Technical paper: The design of stiff in-situ walls retaining overconsolidated clay: Part II, long term behaviour

by M D Bolton, W Powrie and I F Symons. This paper was first published in GE’s March 1990 edition 

Introduction

Part I of the paper considered the stability and displacement of an effectively rigid reinforced concrete wall, constructed in situ in overconsolidated clay. In part II calulations will be advanced to tocontrol the long term behaviour of such a wall. The validity of these calculations can be checked by using beam theory on the resulting moment diagram to compute the additional flexural displacements of the wall. The analysis will be useful only if these are smaller than the rigid body displacements. This discussedd in Part I (published in GE January 1990) where a soil/wall stiffness ratio R was defeined, and the suggestion made that the approach outlined would bee applicable for walls with R values less than 1000.

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