| 数值模拟软夹层对基岩上覆土层破裂的影响 |
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| 引用本文： | 赵雷, 李小军, 霍达. 数值模拟软夹层对基岩上覆土层破裂的影响[J]. 北京工业大学学报, 2007, 33(3): 289-292. |
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| 作者姓名： | 赵雷 李小军 霍达 |
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| 作者单位： | 中国地震局工程力学研究所,哈尔滨,150080;北京工业大学,建工学院,北京,100022;中国地震局工程力学研究所,哈尔滨,150080;中国地震局地球物理研究所,北京,100081;北京工业大学,建工学院,北京,100022 |
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| 基金项目： | 国家自然科学基金(50078049) |
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| 摘 要： | 为了了解软夹层对基岩上覆土层破裂的影响,确定土层的破裂范围,采用平面应变有限元法,模拟了有软夹层的上覆土层在断层错动时的破裂过程.从模拟的结果看出,软夹层对上覆土层破裂有一定的阻碍作用;当软弱层埋置较深时,一旦上覆土层破裂,失效土体的范围较大;软弱夹层的厚薄对上覆土层的破裂进程和破裂范围也有影响.
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| 关 键 词： | 断层错动 有限元 地震作用 软夹层 上覆土层 |
| 文章编号： | 0254-0037(2007)03-0289-04 |
| 收稿时间： | 2006-04-10 |
| 修稿时间： | 2006-04-10 |
Numerically Simulate the Response Complexion of the Overlaying Soil with Soft Interlayer Due to Fault Bedrock Dislocation |
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| ZHAO Lei, LI Xiao-jun, HUO Da. Numerically Simulate the Response Complexion of the Overlaying Soil with Soft Interlayer Due to Fault Bedrock Dislocation[J]. Journal of Beijing University of Technology, 2007, 33(3): 289-292. |
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| Authors: | ZHAO Lei LI Xiao-jun HUO Da |
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| Affiliation: | 1;2;1;3;1.Institute of Engineering Mechanics;China Earthquake Administration;Harbin 150080;China;2.College of Civil Engineering and Architecture;Beijing University of Teehnology;Beijing 100022;3.Institute of Geophysics;Beijing 100081;China |
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| Abstract: | To know the rupture course and rupture range,we simulated the process of rupture on the overlay- ing soil with soft interlayer by plane strain finite element method in this paper.Results show that the overly- ing soil with a soft interlayer can obstruct the rupture failure from bedrock up to the earth's surface,howev- er,a soft interlayer which is deeply buried,will bring about a wider range of the earth's surface rupture fail- ure;In addition,the thickness of the soft interlayer may have effects on the rup... |
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| Keywords: | faulting finite element earthquake effects soft interlayer overlaying soil |
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