|
|||||
|
|
| 地震地电阻率各向异性变化数值模拟 | |
| 引用本文： | 阮爱国,卢军,符琼玉,吴振利.地震地电阻率各向异性变化数值模拟[J].华南地震,2004,24(3):M001-M010. |
| 作者姓名： | 阮爱国 卢军 符琼玉 吴振利 |
| 作者单位： | 1. 国家海洋局第二海洋研究所,浙江,杭州,310012 2. 中国地震局分析预报中心,北京,100063 3. 海南省地震局,海南,海口,570203 |
| 基金项目： | 地震科学联合基金课题(101045)，国家科技部攻关计划项目《强地震短期预测及救灾技术研究》课题(2001BA601B002-02-01)资助. |
| 摘 要： | 将APE模式中差应力与裂隙的演化理论与前期研究中建立的张量形式的各向异性电性模型相结合，推导出了裂隙演化参数(密度、孔压、纵横比、闭合角)与电导率关系的动态方程，用数值模拟方法研究了饱水岩石在水平向应力作用下电阻率的各向异性变化．并结合实验和观钡5结果，讨论了电阻率各向异性变化的可能机理。 |
| 关 键 词： | 数值模拟 地电阻率 各向异性变化 |
| 文章编号： | 1001-8662(2004)03-0001-10 |
| 修稿时间： | 2003年5月20日 |
Numerical simulation of seismic anisotropy variation of earth resistivity |
|
| RUAN Ai-guo,LU Jun,FU Qiong-yu,WU Zhen-li.Center for Earthquake Analysis and Prediction,CSB,Beijing ,China,.Seismological Bureau of Hainan Province,Haikou ,China.Numerical simulation of seismic anisotropy variation of earth resistivity[J].South China Journal of Seismology,2004,24(3):M001-M010. | |
| Authors: | RUAN Ai-guo LU Jun FU Qiong-yu WU Zhen-liCenter for Earthquake Analysis and Prediction CSB Beijing China Seismological Bureau of Hainan Province Haikou China |
| Institution: | RUAN Ai-guo~1,LU Jun~2,FU Qiong-yu~3,WU Zhen-li~12.Center for Earthquake Analysis and Prediction,CSB,Beijing 100063,China,3.Seismological Bureau of Hainan Province,Haikou 570203,China) |
| Abstract: | In this paper dynamic equations of anisotropy variation of earth resistivity caused by earthquake preparation is derived by combining the evolution theory of earth rock cracks due to the affecting of differential stress, described by APE model(anisotropy porous elasticity),with the electrical anisotropy tensor model established in our early research.The dynamic equations include cracks parameters such as porosity pore pressure,aspect ratio and closure angle.For this dynamic model the seismic anisotropy variation of earth resistivity in saturated rocks under the affect of horizontal stress is numerically simulated.According to experimental results and practical observations,the numerical simulation results and the possible mechanism of anisotropy variation of earth resistivity are discussed in detail. |
| Keywords: | numerical simulation anisotropy variation of earth resistivity earth resistivity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |