微震定位原理与实现

Principle and Realization of Microseism Location

根据震源定位的基本算法,编制了基于M atlab的震源定位程序。用实际工程中监测到的微震数据进行震源定位,展示了震源点分布的三维图像,定位结果与震源实际位置和S irose is软件的定位结果进行比较,验证了本程序的实用性。介绍了微地震监测技术及其研究现状。采用P波到时为主要指标,对监测到的地震波形进行分析,讨论了数据优化组合的方式及其对定位精度的影响。详细介绍了微震定位算法、及其实现过程和实现结果,分析了定位误差的原因。

According to the basic algorithm of source location,a Matlab-based positioning procedure of the source was established.The Microseismic monitoring data of practical projects were used for source positioning.The 3D groups of the location were displayed.The positioning results and the actual source location are compared with the results by Siroseis software to verify the practicality of the procedure.The micro-seismic monitoring technology and its research status were researched.The arrival time of P wave was the main parameter to discuss the microseismic waveform.The way of data optimization grouping and its impact on the positioning accuracy were discussed.The microseism location algorithm and its process and outcome of the realization were introduced in detail,and the reason of the location error was described.