Evaluation of Stress Concentration in a Coal Mine Panel Using Seismic Data

摘要：

　　Since P and S-velocities in rocks are often stress sensitive, we inverted P and S-velocities of coal bed roof to evaluate stress concentrations in a coal mine panel.Because P and S-wave in this panel have almost the same detectability, we normalized velocities and used a two-category classification to evaluate stress-concentration zones.By comparing with monitoring results of microseisms, two zones were proven plausible, and another one was confirmed as a reasonable conclusion.By spatial Monte Carlo simulations and statistics, we found spatial associations between faults and stress concentrations, and estimated correlation radius between faults and stress-concentration zones.

关键词： seismic refraction tomography stress evaluation simulation spatial statistics

作者: Tongjun Chen Xin Wang Tapan Mukerji

作者单位: China University of Mining and Technology Stanford University

会议类型: 国际会议

会议名称: The 12th Congress of International Mine Water Association,IMWA2014(第十二届国际矿井水大会)

会议地点: 徐州

会议语种:英文

页码: 269-272

在线出版日期: 2014-08-18（万方平台首次上网日期，不代表论文的发表时间）