工程科学学报Issue(3)：267-274,8.DOI:10.13374/j.issn2095-9389.2015.03.001
基于矩张量反演的矿山突水孕育过程
Water inrush inoculation process in mines based on moment tensor inversion
柴金飞 1金爱兵 2高永涛 1吴顺川 2张院生1
作者信息
- 1. 北京科技大学土木与环境工程学院，北京 100083
- 2. 北京科技大学金属矿山高效开采与安全教育部重点实验室，北京 100083
- 折叠
摘要
Abstract
To achieve the effective monitoring of rock failure events in the mine water inrush inoculation process, a moment tensor inversion method based on digital seismology was introduced to process abnormal microseismic events monitored in Hebei Fanshan Phosphate Mine. The vibration displacement field in the mine scale could be expressed as the convolution of moment tensor and Green’s function. The moment tensor was linearly inversed through extracting displacement data from the microseismic events and cal-culating the Green’s function (pulse response of transmission medium between the source and sensors). Then, the type of ruptures was distinguished by analyzing the fracture azimuth of microseismic events. As a result, a 3D effect picture of the microseismic monitoring area was built to fit the rock failure surface, predict its development trend, and demarcate the water inrush danger zone preliminarily. Research results show that the moment tensor inversion method can be used to calculate a series of focal mechanism solutions and can reflect the rock failure in the mine water inrush inoculation pocess and development trend effectively.关键词
矿山/突水/微震/矩张量反演/岩石破裂/震源机制Key words
mines/water inrush/microseism analysis/moment tensor inversion/rock fracture/focal mechanisms分类
矿业与冶金引用本文复制引用
柴金飞,金爱兵,高永涛,吴顺川,张院生..基于矩张量反演的矿山突水孕育过程[J].工程科学学报,2015,(3):267-274,8.
