Aspects of Constant Volume Cyclic Simple Shear

by W. D. Liam Finn,



Document Type: Proceeding Paper

Part of: Advances in the Art of Testing Soils Under Cyclic Conditions

Abstract:

Data from cyclic simple shear tests comprise the foundation on which rests most of the practical applications of theoretical soil dynamics. The importance of the test derived from two assumptions made by Seed and Idriss in their pioneering studies of liquefaction in level ground during the Niigata earthquake in Japan in 1964: (1) seismic excitation is due primarily to shear waves propagating vertically and (2) level ground conditions may be approximated by horizontal layers with uniform properties. Under these conditions the ground deforms in shear only and may be analysed by treating a vertical column of soil as a shear beam.

Subject Headings: Shear tests | Shear waves | Soil liquefaction | Soil dynamics | Shear stress | Shear strength | Seismic waves | Japan | Asia

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