| 模拟引潮力作用下的岩石破裂特征──加卸载响应比理论的实验研究之一 |
| |
| 引用本文： | 施行觉,陈学忠.模拟引潮力作用下的岩石破裂特征──加卸载响应比理论的实验研究之一[J].地球物理学报,1994,37(5):633-637. |
| |
| 作者姓名： | 施行觉 陈学忠 |
| |
| 作者单位： | 1. 中国科学技术大学, 合肥 230026;
2. 国家地震局地球物理研究所, 北京 100081 |
| |
| 摘 要： | 根据加卸载响应比理论，选用纵波速度作为响应参数，在实验室内，在模拟构造应力和引潮力的共同作用下，使岩石失稳破裂．在整个过程中测量纵波在岩石中的走时或速度，发现加卸载响应比Ｙ的值，在系统稳定时近于１；而在失稳前，逐渐增加，最大可达到１０．实验结果和理论预测曲线非常相近．认为可用纵波速度的响应比来表示岩石系统的稳定程度．
|
| 关 键 词： | 加卸载响应比 纵波走时 系统失稳 |
| 收稿时间： | 1993-10-28 |
THE CHARACTERISTIC OF ROCK FRACTURE UNDER SIMULATED TIDE FORCE──LABORATORY STUDY ON THE THEORY OF LOADING AND UNLOADING RESPONSE RATIO |
| |
| SHI XING-JUE,XU HE-MING,WAN YONG-ZHONG,LU ZHEN-GANG.THE CHARACTERISTIC OF ROCK FRACTURE UNDER SIMULATED TIDE FORCE──LABORATORY STUDY ON THE THEORY OF LOADING AND UNLOADING RESPONSE RATIO[J].Chinese Journal of Geophysics,1994,37(5):633-637. |
| |
| Authors: | SHI XING-JUE XU HE-MING WAN YONG-ZHONG LU ZHEN-GANG |
| |
| Institution: | 1. University of Science and Technology of China, Hefei 230026;
2. Institute of Geophysics, State Seismological Bureau, Beijing 100081 |
| |
| Abstract: | According to the theory of loading and unloading response ratio,tEe velocity of P wave is selected as the response parameter.In laboratory,rock samples are loaded to instability or fracture under the common action of the simulated tectono physical and tide forces.The travel time or wave velocity is measured in the whole process.It is found that the value of response ratio Y is nearl as the rock system is stable,but Y is gradually increased to the maximum value 10 as the rock appro aching instability.The experimental result is very close to the ideal curve predicted by the theory.The response ratio of P wave velocity maybe used to represent the stable degree of rock system. |
| |
| Keywords: | Loading and unloading response ratio Trayal time of Pwave System instability |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
