Aznalcollar dam failure. Part 1: Field observations and material properties

被引:58
作者
Alonso, EE [1 ]
Gens, A [1 ]
机构
[1] Univ Politecn Calalunya, Dept Geotech Engn & Geosci, Barcelona, Spain
来源
GEOTECHNIQUE | 2006年 / 56卷 / 03期
关键词
case history; clays; dams; geology; landslides; shear strength;
D O I
10.1680/geot.2006.56.3.165
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
The paper describes the failure of Aznalcollar dam, in southern Spain, in April 1998. The rockfill dam slid forward and released a How of acid-saturated tailings. The geology and geomorphology of the site are described. The results of a detailed laboratory testing programme on the tailings material and on the overconsolidated high-plasticity foundation clay are given. Special attention is paid to the identification of cementation of the tailings and to the strength and consolidation properties of the foundation clay. Failure features are interpreted on the basis of the field evidence, taking into account the measured geotechnical properties of the materials involved.
引用
收藏
页码:165 / 183
页数:19
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