高地应力特软煤层掘进工作面应力场分布规律研究  

Study on Distribution Law of Stress Field in Heading Face of Extra-soft Coal Seam with High Strata Stress

作　　者：唐兵[1,2] 刘昊[3] 夏永军[1,2] 

机构地区：[1]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [2]中煤科工集团重庆研究院,重庆400037 [3]铁法煤业(集团)有限责任公司大兴煤矿,辽宁调兵山112700

出　　处：《矿业安全与环保》2011年第4期21-23,33,共4页Mining Safety & Environmental Protection

基　　金：国家重大基础研究发展计划(973计划)项目(2005CB221503)

摘　　要：随着矿井开采深度的增加,采掘工作面应力场由浅部到深部发生变化,特别是松软煤层掘进工作面在高地应力条件下预测指标分布规律发生了明显变化,因此迫切需要了解高地应力特软煤层掘进工作面应力场分布规律。采用理论分析、现场测试和数值分析相结合的方法,研究得出高地应力特软煤层掘进工作面前方的应力场分布规律,并在淮南新庄孜矿试验研究了高地应力高瓦斯压力特软煤层掘进工作面突出预测敏感指标及临界值。With the increase of mining depth,the stress field in mining faces changes from shallow to deep part,obvious change occurred in distribution regularity of the prediction index for the heading face in bulky seam under the condition of high strata stress,so the urgent need is to understand the distribution regularity of the stress field in the heading face in extra-soft seam with high strata stress.The distribution regularity of the stress field in front of the heading face in the extra-soft seam with high strata stress was obtained with a combined method of theoretical analysis,field survey and numerical analysis.Test research was made on the sensitive index and critical value for outburst prediction in the heading face in the extra-soft seam with high strata stress and high gas pressure in Xinzhuangzi Mine in Huainan Coal Mining area.

关 键 词：高地应力 掘进工作面 应力场分布规律 突出预测 

分 类 号：TD32[矿业工程—矿井建设]