摘要
针对煤矿冲击地压危险性综合评价指标的不确定性和不相容性,基于集对分析方法,将多个指标合成为一个可反映冲击危险级别的联系度参数,建立了煤矿冲击地压危险性预测评价的集对分析模型.将该模型应用于富力煤矿276工作面和华亭煤矿回风顺槽掘进工作面,选用开采深度、煤层上方坚硬岩层距煤层距离、构造应力集中指数、顶板岩层厚度特征参数、煤的单轴抗压强度和煤的冲击能量指数等6项指标,分别对其冲击危险性进行了预测评价.计算结果与工程实践符合,表明所建立的集对分析模型能够合理评价区域冲击危险等级.
The risk of rock burst is estimated using set pair analysis（SPA）.This improves upon the uncertainties and incompatibilities of indices used for the comprehensive evaluation of rock burst.The application to the 276 working face of the Fuli coal mine,and to the return airway of the caving face at the Huating coal mine,is described.Six main factors were chosen to evaluate the risk of rock burst.The factors were mine depth,distance from hard rock to the coal bed,tectonic stress concentration index,the roof thickness parameter,the uni-axial compressive strength of the roof material,and the impact energy index of the coal.The SPA model successfully predicted the risk of rock burst in these situations.This method offers a new way to evaluate rock burst risk in coal mines.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2011年第3期379-384,共6页
Journal of China University of Mining & Technology
基金
国家重点基础研究发展计划(973)项目(2010CB226804)
江苏省普通高校研究生科研创新计划项目(CX10B-134Z)
国家自然科学基金项目(50909093
50909045)
关键词
采矿工程
冲击地压
集对分析
评价
mining engineering
rock burst
set pair analysis
evaluation
