A Note on Design of Rock-socketed Embedded Wall


Victor Li
Victor Li & Associates Ltd, Hong Kong


The design of excavation and lateral support works in Hong Kong generally follows the guidelines of GCO Publication No. 1/90. The document provides guidelines for determining the overall factor of safety against kickout failure of embedded walls in soil. There is limited discussion in this document for embedded walls partially socketed in rock. A method is proposed in this paper for determining the required socket length of a rock socketed embedded wall. The method allows the overall factor of safety to be applied consistently to resisting forces in soils and in the rock socket.

April 9, 2022
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