Title: STABILITY OF NATURAL DEPOSITS DURING EARTHQUAKES. PROCEEDINGS OF THE ELEVENTH INTERNATIONAL CONFERENCE ON SOIL MECHANICS AND FOUNDATION ENGINEERING, SAN FRANCISCO, 12-16 AUGUST 1985
Abstract: The author investigates soil liquefaction during earthquakes, explains the cyclic shear stresses induced by motions during earthquakes, and the liquefaction and cyclic mobility in irregular loading. The liquefaction potential of fine-grained and coarse-grained soils is examined. The liquefaction characteristics of in-situ soils is evaluated together with the liquefaction resistance by means of in-situ penetration tests. A simple method of analysis for liquefaction in level ground is presented; in this method, the cyclic stress ratio induced in a soil deposit by earthquake shaking is estimated from a knowledge of the magnitude of acceleration at the ground surface and compared against the corresponding cyclic strength expressed in terms of the cyclic stress ratio causing liquefaction or cyclic mobility in the soil in question. Several case studies of liquefaction in Japan and Yugoslavia are presented. Details are given of site identification for liquefaction-induced damage. The last part of the paper deals with the seismic stability of natural slopes and is subdivided into the evaluation of soil properties in seismic loading, effects of topography on ground motions and of presentation of case studies of failure of natural slopes. For the covering abstract of the conference see IRRD 287689. (TRRL)
Publication Year: 1985
Publication Date: 1985-01-01
Language: en
Type: article
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Cited By Count: 9
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