| 利用ANSYS程序分析软岩冲击矿压及广义应力(应变)率准则 |
| |
| 引用本文： | 刘卫群,缪协兴,王爱文.利用ANSYS程序分析软岩冲击矿压及广义应力(应变)率准则[J].岩石力学与工程学报,2002,21(1):29-33. |
| |
| 作者姓名： | 刘卫群 缪协兴 王爱文 |
| |
| 作者单位： | 中国矿业大学理学院,徐州,221008 |
| |
| 基金项目： | 国家自然科学基金重点资助项目(59734090)，煤炭高校青年基金资助项目。 |
| |
| 摘 要： | 利用ANSYS程序分析了权台煤矿软岩冲击矿压。通过对所得数据的处理。总结出一种用于判断冲击矿压的广义应力(应变)率准则。即冲击矿压发生时。冲击点附近的应力(应变)变化比其他时刻同地的变化和其他位置同时刻的变化都为剧烈。并将这一准则用于工作面回采时的冲击矿压预测。结果是合理的。
|
| 关 键 词： | ANSYS程序 软岩 冲击矿压 广义应力 回采 |
| 文章编号： | 1000-6915(2002)01-0029-05 |
| 收稿时间： | 2000-3-6 |
| 修稿时间： | 2000年3月6日 |
ANALYSIS ON BURST OF SOFT ROCK BY PROGRAM ANSYS AND CRITERION OF GENERALIZED STRESS (STRAIN) RATE |
| |
| Liu Weiqun,Miao Xiexing,Wang Aiwen.ANALYSIS ON BURST OF SOFT ROCK BY PROGRAM ANSYS AND CRITERION OF GENERALIZED STRESS (STRAIN) RATE[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(1):29-33. |
| |
| Authors: | Liu Weiqun Miao Xiexing Wang Aiwen |
| |
| Abstract: | The burst of soft rock is studied by program ANSYS. By analyzing the generated data,the criterion of generalized stress (strain) rate is proposed as a means to predict rockburst occurrence. During rockburst,the stress and strain at the location close to the burst point change more rapidly than any other location at the same momentand also the two variables at the moment close to the burst time vary more speedily than those at any othermoment within the same location. As a practical example,the criterion is employed to forecast the rockburst with face extraction,and a rational conclusion is obtained. |
| |
| Keywords: | program ANSYS burst of soft rock criterion of generalized stress (strain) rate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩石力学与工程学报》浏览原始摘要信息 |
|
点击此处可从《岩石力学与工程学报》下载全文 |
