基于Matlab的岩层微地震破裂定位求解及其应用  

Research and application of microseismic monitoring location of strata fracturing based on Matlab

作　　者：李会义[1] 姜福兴[1] 杨淑华[2] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]北京科技大学信息工程学院,北京100083

出　　处：《煤炭学报》2006年第2期154-158,共5页Journal of China Coal Society

基　　金：国家自然科学基金重大国际合作项目(50320120001)

摘　　要：基于地震波在连续介质中的传播机理,采用P波到达时间为主要指标,编制了基于Matlab语言的定位软件.该软件在两个煤矿的微地震监测中得到了成功的应用.介绍了定位软件的编制原理、结构和操作使用过程,讨论了通过监测数据的优化组合、均方差去噪等提高定位精度的方法和途径,并以华丰煤矿岩层破裂事件为例,详细介绍了定位的过程,展示了定位结果的三维图像.实际应用结果表明:采用牛顿迭代法求解定位方程组具有计算简单、迭代速度快的优点,而借助于Matlab语言的强大运算功能,使定位速度大大提高,很适合于实时定位.Based on the spreading mechanism of seismic wave, introduced the locating method and software of microseismic monitoring. The main parameter was arrival time of P wave. The software was written by Matlab. The method and software were applied successfully in two collieries in Shandong Province of China. Presented the structure and usage of the software. Improved locating precision by using optimization grouping of monitoring data and average square difference. Introduced the process of location and showed the 3-D and 2-D graphs of locating results by an example of Huafeng Colliery. The application proved that solving equation by using Newton iterative method has the advantage such as simple and quick calculation. With the help of the strong calculating function of Matlab, the speed of location is improved greatly. It is suitable to real time locating.

关 键 词：微地震监测 岩体破裂 定位软件 牛顿迭代法 

分 类 号：P631.4[天文地球—地质矿产勘探]