岩体微震事件的精确定位研究

基于岩体稳定性监测原理 ,提出一种岩体微震事件的精确定位方法。该方法的特点是 :①采用初次定位和修正定位的二次定位方法 ;②依据P波在岩体介质中以常速度传播为假设 ;③迭代求解条件方程采用正规化过程 ;④对数据做了多种加权 ;⑤对定位结果给出质量评估。理论分析和实际应用结果表明 ,该方法可行 ,定位精度较高

STUDY ON PRECISE LOCALIZATION OF MICRO-SEISMIC EVENTS IN A ROCK-MASS

Based upon the principle for the monitoring of rock mass stability,a new method for precise localization of micro seismic events in a rock mass is put forward in this paper This method is characterized by 1)applying secondary localization including initial and revised localizations,2)assuming that the P wave is travelling in a rock medium at a constant velocity,3)using normalized process for iterative solution of the conditional equation,4)making weighted means of the data acquired by several ways,and 5)giving the quality evaluations of the localizing results Theory study and practical application have indicated that the method is feasible and high in the location accuracy