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为了实现对大庆遥测地震台网网内事件的精确定位,分析了台网的实际情况,建立了网内P波速度模型,并根据该模型编制出相应的初至P波走时表。采用初至P波定位方法,取得了很好的结果。3次爆破实验表明,在炮检距均大于10km的情况下,最小定位误差仅57.7m。
In order to realize the accurate positioning of the events in Daqing telemetric seismic network, the paper analyzes the actual situation of the network and establishes the intra-network P-wave velocity model and compiles the corresponding first-arrival P-wave travel timetable according to the model. Using the first P wave positioning method, and achieved good results. Three blasting experiments show that the minimum positioning error is only 57.7m when the offset distance is more than 10km.