摘要
为了提高采区宏观区域冲击危险评价精度,基于三维地应力场反演技术开展了相关研究,并以集贤煤矿西二采区为研究对象,在地质构造特征分析、煤岩物理力学性质和矿井地应力实测的基础上,根据多元线性回归原理对三维地应力场进行数值模拟反演,获得了研究区域内三维地应力场的相关信息;综合考虑构造应力、采动影响等因素,实现了对采区宏观区域的冲击危险评价,优化后的单翼顺序开采方案可以降低回采区域应力集中水平,有利于指导现场的冲击地压灾害防治。
In order to improve the evaluation precision of the mine bump danger in the macro area of the mining block,a related study was conducted based on the inversion technology of the 3D geostress field.And with West No.2 Mining Block of Jixian Mine was the study object,based on the analysis on the geological structure features,the coal and rock physical mechanics properties and the mine geostress measurement,according to the multiple linear regression principle,a numerical simulation inversion was conducted on the 3D geostress field and the related information of the 3D geostress filed in the study area were obtained.The comprehensive consideration on the structure stress,mining factors and other factors could realize the evaluation on the mine bump danger of the macro area in the mining block.The stress concentration level of in the mining area could be reduced after using the optimized single-wing sequential mining scheme,which could help to guide the prevention and control of the pressure bump disaster at the site.
作者
邓志刚
DENG Zhigang(Liaoning Technical University,Fuxin 123000,China;Mine Safety Branch,China Coal Research Institute,Beijing 100013,China;State Key Laboratory of Coal Mining and Clean Utilization,Beijing 100013,China)
出处
《煤炭科学技术》
CAS
北大核心
2018年第10期78-82,共5页
Coal Science and Technology
基金
国家科技重大专项资助项目(2016ZX05045003-006-002)
煤炭科学技术研究院科技发展基金资助项目(2016JC09)
关键词
三维地应力场反演
宏观区域
数值模拟反演
冲击危险评价
3D geostress field inversion
macro area
numerical simulation inversion
mine bump danger evaluation
