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| 隐伏走滑断层破裂扩展特征的实验研究 | |
| 引用本文： | 代树红,马胜利,潘一山,罗华春.隐伏走滑断层破裂扩展特征的实验研究[J].地震地质,2006,28(4):635-645. |
| 作者姓名： | 代树红 马胜利 潘一山 罗华春 |
| 作者单位： | 1. 辽宁工程技术大学,辽宁阜新,123000 2. 中国地震局地质研究所地震动力学国家重点实验室,北京,100029 3. 北京市地震局,北京,100080 |
| 基金项目： | 国家发展与改革委员会发改投资项目 |
| 摘 要： | 通过模拟实验研究了基岩中走滑断层在上覆沉积层中的破裂扩展特征,利用白光数字散斑相关方法分析了沉积层表面变形场的演化过程,重点研究了基岩断层位移和沉积层厚度的影响。结果表明,在沉积层厚度一定的情况下,随基岩断层的滑动,沉积层中围绕断层投影线逐渐形成一个变形带以及由张性破裂和剪切破裂组成的破裂带,基岩断层的位移越大,沉积层中的变形带越宽、变形越强烈;但当基岩断层位移超过某一临界值后,变形带宽度将保持稳定,只是变形随断层位移增加而更集中。对于同样的基岩断层位移,沉积层厚度越大,受基岩断层控制的变形破裂带越宽,即基岩断层的影响范围越大;但当沉积层厚度超过某一临界值时,沉积层的变形发生了变化,沉积层表面并不存在与基岩断层走向一致的变形带,而是发育了较大尺度、与基岩断层走向斜交的张剪性破裂带。实验结果意味着,临界断层位移和临界沉积层厚度对于确定隐伏断层发震产生的地表变形和破坏具有重要意义 |
| 关 键 词： | 隐伏走滑断层 模拟实验 数字散斑相关方法 破裂扩展 |
| 文章编号： | 0253-4967（2006）04-0635-11 |
| 收稿时间： | 2006-10-16 |
| 修稿时间： | 2006-11-12 |
EXPERIMENTAL STUDY ON RUPTURE PROPAGATION ALONG BURIED STRIKE-SLIP FAULT |
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| DAI Shu-hong,MA Sheng-li,PAN Yi-shan,LUO Hua-chun.EXPERIMENTAL STUDY ON RUPTURE PROPAGATION ALONG BURIED STRIKE-SLIP FAULT[J].Seismology and Geology,2006,28(4):635-645. | |
| Authors: | DAI Shu-hong MA Sheng-li PAN Yi-shan LUO Hua-chun |
| Institution: | 1.Liaoning Technical University, Fuxin 123000, China; 2. State Key Laboratory of Earthquake Dynamics, Institute of Geology, CEA, Beijing 100029, China; 3 . Bering Earthquake Administration, Beijing 100080, China |
| Abstract: | It is important for active fault research and seismic hazard assessment in urban area to study the existence of buried active fault and its possible effect on the earth s surface.Many geophysical and geo～chemical techniques have been developed for exploration of buried active fault,and advanced remote techniques have been used in measurement and analysis of deformation on the earth s surface caused by earthquake on buried fault.However,the relationship between buried seismogenic fault and surface deformatio |
| Keywords: | buried strike-slip fault simulation experiment digital speckle correlation method fracture propagation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |