7

Stress and Stress Distribution in Soil

CHAPTER HIGHLIGHTS

Stresses at a point – Mohr's circle – Stress paths – Stress concepts: total stress, neutral stress, effective stress – Geostatic stresses – Different positions of water table – Stresses due to surface loads: elastic half space, Boussinesq's theory, pressure distribution diagrams, Westergaard equation, types of surface loads, Newmark's influence chart, approximate solutions – Contact pressure

7.1 INTRODUCTION

Internal stress develops in a soil mass by the weight of the overburden and due to external loadings caused by the construction of structures. It is impossible to keep track of forces acting at different points of a soil mass because of its heterogenic nature, and thus stress ...

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