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篇目详细内容 |
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【篇名】 |
The ground deformation field induced by a listric thrust fault with an overburden soil layer |
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【刊名】 |
Frontiers of Earth Science |
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【刊名缩写】 |
Front. Earth Sci |
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【ISSN】 |
2095-0195 |
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【EISSN】 |
2095-0209 |
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【DOI】 |
10.1007/s11707-013-0383-x |
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【出版社】 |
Higher Education Press and Springer-Verlag Berlin
Heidelberg |
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【出版年】 |
2013 |
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【卷期】 |
7
卷4期 |
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【页码】 |
501-507
页,共
7
页 |
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【作者】 |
Shaogang ZENG;
Yong’;
en CAI;
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【关键词】 |
listric thrust fault; earthquake; fault scarps; ground fissures; finite element method (FEM) |
【摘要】 |
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The surface deformation field induced by a listric thrust fault with a thick, overburden soil layer is studied in this paper by the finite element method (FEM). The results show: (a) The maximum slip induced by the buried fault is not located at upper tip of the fault, but below it. (b) The vertical displacement changes remarkably near the fault, forming a fault scarp. With the increase of the soil layer thickness, the height of the scarp is decreased for the same earthquake magnitude. (c) The strong strain zone on the surface is localized near the projection of the fault tip on the ground surface. The horizontal strains in the zone are in tension above the hanging wall and in compression above the foot wall, and the vertical strains in the zone are vice versa, which is favorable for tensile-shear, compression-shear fissures above hanging wall and foot wall, respectively. |
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