开采远距离下保护层卸压保护角的相似模拟研究  

Similar Simulation Study of Pressure-relief Protection Angle during Extraction of Long-interval Lower Protective Seam

作　　者：刘林[1] 程远平[1] 

机构地区：[1]中国矿业大学能源与安全工程学院

出　　处：《矿业安全与环保》2006年第6期7-9,共3页Mining Safety & Environmental Protection

基　　金：国家重点基础研究发展计划(973计划)课题(2005cb221504)

摘　　要：通过对淮南矿业集团潘谢新区矿井煤层群开采条件下开采下保护层对上部煤岩层采动影响的相似材料模拟试验结果的分析,得出下保护层开采时上覆岩层的活动及变形规律,并对远距离下保护层开采后的卸压保护角进行了分析,模拟试验结果表明,卸压保护角存在合理增加的空间。The activity and deformation regularity of overburden strata during the extraction of lower protective seam were obtained through the analysis on the simulation results of similar materials affected by the upper coal and rock while extracting the lower protective seam under the mining condition of coal seam group in Panxin Mining Area of Huainan Mining Group, analysis was conducted on the pressure-relief protection angle after the extraction of long interval lower protective seam, the results of simulation tests show that the pressure-relief protection angle has a rationally added space.

关 键 词：开采保护层 岩层移动 岩层变形 相似模拟 卸压保护角 

分 类 号：TD712[矿业工程—矿井通风与安全] TD713