Settlement of Strip Foundations on Regularly Jointed Rock Masses

by John P. Carter, Univ of Sydney, Sydney, Australia,
Habibollah Alehossein, Univ of Sydney, Sydney, Australia,

Document Type: Proceeding Paper

Part of: Foundation Engineering: Current Principles and Practices


The analysis of a long, rigid strip foundation resting on the surface of a regularly jointed rock mass is presented. Two models of the overall rock mass are investigated; one in which each joint is modeled explicitly and the other in which the rock mass is represented as an equivalent anisotropic, elastic continuum. The problem has been analysed using the finite element technique and the results of parametric studies are presented. These demonstrate that the equivalent continuum the joint spacing is larger than the width of the strip footing. Curves are presented that may be used in practice to obtain initial estimates of foundation settlements for a large range of problems of this type.

Subject Headings: Rock masses | Foundation settlement | Finite element method | Rock mechanics | Mathematics | Joints | Footings

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