| 断层带及其周围块体系统的非连续运动变形模拟 |
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| 引用本文： | 秦小军,刘宏先,赵齐乐,周硕愚,杨淑贤.断层带及其周围块体系统的非连续运动变形模拟[J].大地测量与地球动力学,2001,21(2):17-24. |
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| 作者姓名： | 秦小军 刘宏先 赵齐乐 周硕愚 杨淑贤 |
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| 作者单位： | 1. 中国地震局地震研究所,
2. 湖北工学院, |
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| 基金项目： | 地震科学联合基金资助项目 (1 990 81 ) |
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| 摘 要： | 从工程块体系统非连续变形分析的基本理论出发 ,在严谨的运动学、力学基础上 ,给出了利用大地测量数据 (包括空间大地测量 ,跨断层测量 ,形变测量等 )分析断层带及其周围块体系统非连续运动变形的基本方程和方法。此方法除具有有限单元法的优点外 ,还能根据具体情况采用各种形状的弹性块体划分 ,对不同的断层和块体间的接触、滑动、张开选取不同物理参数 ,并把系统的大位移和大变形视为小位移和小变形的迭加。文中给出了计算公式和正反分析算例。
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| 关 键 词： | 非连续变形分析 断层带 块体系统 |
| 修稿时间： | 2000年9月14日 |
SIMULATION OF DISCONTINUOUS MOTION AND DEFORMATION OF FAULTS AND ITS AROUND BLOCK SYSTEM |
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| Qin Xiaojun,Liu Hongxian,Zhao Qile,Zhou Shuoyu,Yang Shuxian.SIMULATION OF DISCONTINUOUS MOTION AND DEFORMATION OF FAULTS AND ITS AROUND BLOCK SYSTEM[J].Journal of Geodesy and Geodynamics,2001,21(2):17-24. |
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| Authors: | Qin Xiaojun Liu Hongxian Zhao Qile Zhou Shuoyu Yang Shuxian |
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| Institution: | Qin Xiaojun 1),Liu Hongxian 2),Zhao Qile 1),Zhou Shuoyu 1) and Yang Shuxian 1) 1)Institute of Seismology,SSB,Wuhan 430071 2)Hubei Institute of Technology,Wuhan 430068 |
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| Abstract: | On the basis of the theory of discontinuous deformation analysis , the basic equations for analyzing the discontinuous motion and deformation of faults and its around block system with geodetic data are derived on the kinematic and mechanic principles. Besides some advantages of finite element method, this method permits dividing elastic block into various shapes according to specific situation and selecting different physical parameters according to the closing, sliding and opening of different faults and blocks.Large deformations are considered as the superposition of small deformation. The calculating equations and simulation examples are given in this article. |
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| Keywords: | discontinuous deformation analysis faults block system |
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