Seismic response of saturated cohesionless slopes

被引：29

作者：

Biondi, G ^{[1
]}

Cascone, E ^{[1
]}

Magueri, M ^{[1
]}

Motta, E ^{[1
]}

机构：

[1] Univ Catania, Fac Civil Engn, I-95125 Catania, Italy

来源：

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING | 2000年 / 20卷 / 1-4期

关键词：

seismic slope stability; saturated cohesionless soil; seismic induced pore pressure; displacement analysis;

D O I：

10.1016/S0267-7261(00)00051-8

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The serviceability of a slope after an earthquake is controlled by deformations, consequently a stability analysis that predicts slope displacements is desirable. In cohesionless satured slopes the seismic loading may produce an increase in pore pressures, which in turn, reduces significantly the effective state of stress. Depending on the seismic intensity and on the effective stress conditions before the seismic loading, the induced excess pore pressures may produce the slope failure. Slope displacements may occur even for seismic accelerations lower then the initial critical acceleration, because of pore pressure build-up. In this paper, a simplified procedure for the seismic response of infinite slopes is described, and the role-played by relevant parameters such as soil relative density and initial pore pressure ratio is pointed out. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：209 / 215

页数：7