Cyclic triaxial tests on asphalt concrete as a water barrier for embankment dams

被引:36
作者
Feizi-Khankandi, Siamak [1 ]
Mirghasemi, Ali Asghar [1 ]
Ghalandarzadeh, Abbas [1 ]
Hoeg, Kaare [2 ]
机构
[1] Univ Tehran, Coll Engn, Sch Civil Engn, Tehran 14174, Iran
[2] Univ Oslo, N-0316 Oslo, Norway
关键词
asphaltic concrete core dams; cyclic tests; monotonic tests; seismic behavior (IGC : H4/M3);
D O I
10.3208/sandf.48.319
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
The seismic behavior of asphaltic concrete used in embankment dams subjected earthquake loads has been studied. In order to evaluate the dynamic behavior, an extensive series of monotonic and cyclic tests were carried out on triaxial specimens of asphalt concrete used in hydraulic structures. The MTS-dynamic equipment at the Norwegian Geotechnical Institute (NGI) was used for this purpose. Temperature and frequency effects oil specimen behavior and oil specimen degradation have been studied under the cyclic loads in both isotropic and anisotropic initial stress conditions. For investigation of the fatigue behavior, thousands of cyclic loads were imposed oil some of the specimens. Moreover, to study any sign of material degradation due to the cyclic loading, the post-cyclic monotonic stress-strain curve was compared with the corresponding curve for specimens that were not first Subjected to cyclic loading. Geotechnical parameters to be used in dynamic numerical analysis models are also presented.
引用
收藏
页码:319 / 332
页数:14
相关论文
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