基于DFP算法的小尺度微震定位方法研究
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摘要
针对小尺度微震活动监测的需要,本文基于DFP优化算法以传感器监测到时和计算到时的残差平方和最小为目标函数来进行微震震源位置定位,并对该方法进行了计算机数值仿真。仿真结果表明,DFP算法可用来进行地震定位,其定位结果受计算初值影响较小,而受走时误差和波速误差影响较大。通过野外微震观测实验研究,证明DFP法定位精度较高,适用于小尺度微震活动定位分析。
To meet the small-scale monitoring of microseismic activity,a new microseismic location method(DFPmethod) is developed based on DFP algorithm by minimizing sums of squares due to residual between calculated and monitored arrival time. The DFP method is simulated by PC, and the results show that DFP algorithm can be used for seismic location, and the convergence precision of the DFP method is affected by the error of the arrival time and the wave speed, which is not affected by the initial values. The result of the experience shows that the DFP method with high accuracy is reliable for small-scale microseismic location.
To meet the small-scale monitoring of microseismic activity,a new microseismic location method(DFPmethod) is developed based on DFP algorithm by minimizing sums of squares due to residual between calculated and monitored arrival time. The DFP method is simulated by PC, and the results show that DFP algorithm can be used for seismic location, and the convergence precision of the DFP method is affected by the error of the arrival time and the wave speed, which is not affected by the initial values. The result of the experience shows that the DFP method with high accuracy is reliable for small-scale microseismic location.
引文
陈炳瑞,冯夏庭,李庶林等,2009.基于粒子群算法的岩体微震源分层定位方法.岩土力学与工程学报,28(4):740—749.
巩思园,窦林名,马小平等,2012.煤矿矿震定位中异向波速模型的构建与求解.地球物理学报,55(5):1757—1763.
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胡幸平,崔效峰,2013.华北地区中部地震精定位与构造应力场研究.震灾防御技术,8(4):351—360.
李英康,高锐,姚聿涛等,2014.华北克拉通北缘-西伯利亚板块南缘的地壳速度结构特征.地球物理学报,57(2):484—497.
潘一山,赵扬锋,官福海等,2007.矿震监测定位系统的研究及应用.岩土力学与工程学报,26(5):1002—1011.
田玥,陈晓非,2002.地震定位研究综述.地球物理学进展,17(1):147—155.
王洪体,陈阳,庄灿涛等,2006.基于浮点遗传算法的近震定位方法.地震,26(2):12—18.
王焕义,2001.岩体微震事件的精确定位研究.工程爆破,7(3):5—8.
张光澄,2005.非线性最优化计算方法.北京:高等教育出版社.
赵仲和,1983.多重模型地震定位程序及其在北京台网的应用.地震学报,5(2):242—254.
中国地震局地震监测预报司,2003.数字地震观测技术.北京:地震出版社.
Davidon W.C,1968.Variance algorithm for minimization.The Computer Journal,10(4):406—410.
Davidon W.C.,1991.Variable metric method for minimization.Siam J.Optimization,1(1):1—17.
Dong Longjun,Li Xibing,2002.Three-dimensional analytical solution of acoustic emission or microseismic sourcelocation under cube monitoring network.Trans.Nonferrous Met.Soc.,22:3087—3094.
Flecher R.,Powell M.,1968.A rapidly convergent descent method for minimization.The Computer Journal,6:163—168.
Geiger L.,1912.Probability method for the determination of earthquake epicenters from the arrival time only.Bulletin of Saint Louis University,8:60—71.
Talebi,R.P.Young,1992.Microseismic monitoring in highly stressed granite:relation between shaft-wall crackingand in situ stress.Geomech Abstract,29(1):25—34.
巩思园,窦林名,马小平等,2012.煤矿矿震定位中异向波速模型的构建与求解.地球物理学报,55(5):1757—1763.
国家地震局地球物理研究所,1977.近震分析.北京:地震出版社.
胡幸平,崔效峰,2013.华北地区中部地震精定位与构造应力场研究.震灾防御技术,8(4):351—360.
李英康,高锐,姚聿涛等,2014.华北克拉通北缘-西伯利亚板块南缘的地壳速度结构特征.地球物理学报,57(2):484—497.
潘一山,赵扬锋,官福海等,2007.矿震监测定位系统的研究及应用.岩土力学与工程学报,26(5):1002—1011.
田玥,陈晓非,2002.地震定位研究综述.地球物理学进展,17(1):147—155.
王洪体,陈阳,庄灿涛等,2006.基于浮点遗传算法的近震定位方法.地震,26(2):12—18.
王焕义,2001.岩体微震事件的精确定位研究.工程爆破,7(3):5—8.
张光澄,2005.非线性最优化计算方法.北京:高等教育出版社.
赵仲和,1983.多重模型地震定位程序及其在北京台网的应用.地震学报,5(2):242—254.
中国地震局地震监测预报司,2003.数字地震观测技术.北京:地震出版社.
Davidon W.C,1968.Variance algorithm for minimization.The Computer Journal,10(4):406—410.
Davidon W.C.,1991.Variable metric method for minimization.Siam J.Optimization,1(1):1—17.
Dong Longjun,Li Xibing,2002.Three-dimensional analytical solution of acoustic emission or microseismic sourcelocation under cube monitoring network.Trans.Nonferrous Met.Soc.,22:3087—3094.
Flecher R.,Powell M.,1968.A rapidly convergent descent method for minimization.The Computer Journal,6:163—168.
Geiger L.,1912.Probability method for the determination of earthquake epicenters from the arrival time only.Bulletin of Saint Louis University,8:60—71.
Talebi,R.P.Young,1992.Microseismic monitoring in highly stressed granite:relation between shaft-wall crackingand in situ stress.Geomech Abstract,29(1):25—34.
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