摘要
本文旨在综述深埋隧道工程中微震定位技术的原理和研究进展。首先,综述了微震定位的主要方法和影响定位精度的主要因素,包括波速模型、微震信号传播路径、目标函数、迭代算法、传感器的阵列,以及微震波的到时拾取等。然后,通过分析这些因素对微震定位结果的影响程度,探讨各方法的优缺点,以及提高定位精度的方法和措施。通过对传感器阵列布置优化的探讨,为工程中岩体的破裂监测提供理论指导。最后,通过对本文进行简要总结,提出未来微震定位研究方向的展望。
The purpose of this review is to introduce the principle and development of microseismic source localization technology in deep-buried tunnel engineering.First,it introduces the main methods of microseismic source localization and the main factors affecting the accuracy of source location are summarized,including velocity structure model,propagation path of microseismic wave,objective function,algorithm,monitoring sensors array,and arrival-time picking up of microseismic wave.Then,by analyzing the influence of these factors on the result of microseismic source localization,the advantages and disadvantages of each method are discussed,and the methods and measures to improve the accuracy are counseled.This review discusses the optimization of monitoring sensors array and provides theoretical guidance for rock fracture monitoring in engineering.Finally,a brief summary is given,and the future research direction of microseismic source localization is put forward.
作者
唐世斌
刘艳晖
徐浩然
陈希茂
TANG Shi-bin;LIU Yan-hui;XU Hao-ran;CHEN Xi-mao(School of Civil Engineering,Dalian University of Technology,Dalian 116024,China;Fujian Railway Construction Co.,Ltd.of China Railway 24th Bureau Group,Fuzhou 350013,China)
基金
Project(52374080)supported by the National Natural Science Foundation of China。
关键词
微震定位
深埋隧道
微震监测
定位算法
microseismic source localization
deep buried tunnel
microseismic monitoring
algorithm of source location
