黄陵矿区2号煤层构造应力场分析  

Analysis of tectonic stress field in No. 2 coal seam in Huangling mining area

作　　者：李江[1] 李庆春[1] 张向辉 LI Jiang;LI Qing-chun;ZHANG Xiang-hui(School of Geological Engineering and Geomatics, chang＇ an University, Xi＇an 710054, China;Shaanxi Yanehang Petroleum（Group） co. ltd Oil and Gas exploration Company, Yan＇an 716000, China)

机构地区：[1]长安大学地质工程与测绘学院,西安710054 [2]陕西延长石油(集团)有限责任公司油气勘探公司,延安716000

出　　处：《地球物理学进展》2017年第5期2009-2013,共5页Progress in Geophysics

基　　金：国家自然科学基金项目(41374145);中国地质调查局地质调查项目(DD20160060)联合资助

摘　　要：煤层构造应力场与煤与瓦斯突出和煤层裂隙分布带范围密切相关.黄陵矿区煤层中瓦斯含量较高,分布不均是矿井安全生产的重要隐患.基于该区地震、地质和测井数据,本文对三维地震数据体进行精细的构造解释,用反演法建立了地质力学模型,并确定岩石力学参数,运用有限元理论和弹性计算力学对矿区三维构造应力场进行了数值模拟,得到黄陵矿区2号煤层地质构造带应力场分布特征,模拟结果与井田宏观及微观构造信息一致.这对预测该区裂隙分布带,煤与瓦斯突出等具有重要的指导意义.The tectonic stress field of coal seam is closely related to the coal and gas outburst and the distribution zone of coal seam fracture. In Huangling mining area,the high content of coalbed methane and its uneven distribution is an important hidden danger of safe production. Based on the seismic and logging data, the geological mechanics model was established and the deformation parameters of rock mechanics were determined,by using the theory of finite element and elastic stress,the three-dimensional tectonic stress field was simulated and the results were consistent with the structure information. It is important to predict the fracture zone,coal and gas outburst in this mining area.

关 键 词：有限元 数值模拟 构造应力场 煤层 

分 类 号：P631[天文地球—地质矿产勘探]