EARTHQUAKE-INDUCED SHALLOW SLIDES IN VOLCANIC DEBRIS SOILS

被引：11

作者：

BELLONI, L

MORRIS, D

机构：

[1] ELC-Electroconsult, Milan

来源：

GEOTECHNIQUE | 1991年 / 41卷 / 04期

关键词：

EARTHQUAKES; RESIDUAL SOILS; SHEAR STRENGTH; SLOPES; SOIL PROPERTIES; STABILITY;

D O I：

10.1680/geot.1991.41.4.539

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

In March 1987, following two earthquakes and prolonged heavy rain, landslides in northern Ecuador caused extensive damage on slopes of 35-60-degrees. The tectonics of the area and the characteristics of the soil are described. Attention is focused on the aspects of behaviour which are peculiar to volcanic debris residual soils which may affect the stability of such materials on slopes. An analysis of the slides shows the effects of components such as shear strength, pore water pressure and seismic loading. The presence of a cohesive component of strength related to bonding is confirmed. Conclusions are drawn as to the mechanisms of the slides which required the presence of both saturated soil and the earthquakes. Gaps in current knowledge on these soils and future research needs are identified.

引用

页码：539 / 551

页数：13

共 15 条

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