大倾角特厚煤层综放液压支架工作阻力确定  

Determination of support working resistance of fully-mechanized caving in steeply dipping seam with ultra thick

作　　者：王红伟[1,2] 伍永平[1,2] 解盘石[1,2] 张艳丽[1,2] 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]西安科技大学西部矿井开采及灾害防治教育部重点实验室,陕西西安710054

出　　处：《辽宁工程技术大学学报（自然科学版）》2014年第8期1020-1024,共5页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(51074120);国家青年科学基金资助项目(51204132)

摘　　要：为提高大倾角特厚煤层综放开采"R-S-F"系统稳定,采用相似材料模拟实验,对长山子煤矿大倾角特厚煤层综放开采液压支架工作阻力进行研究.结果表明:沿工作面倾向,中部区域支架载荷最大,最大平均载荷为5 540 kN,上部区域支架载荷次之,最大平均载荷为5 340 kN,下部区域支架载荷最小,最大平均载荷为4 966kN,且工作面中上部区域支架易发生逆向侧翻失稳,工作面下部区域易发生错动性滑落失稳.并将测得的支架工作阻力与采用载荷估算和R-S-F动力控制理论计算等方法计算的结果进行对比研究,结果显示支架工作阻力在合理范围内,并确定长山子煤矿大倾角特厚煤层综放液压支架工作阻力5 000 kN.In order to improve the stability of ＂R-S-F＂ resistance of fully-mechanized caving in steeply dipping system, researches have been done on support working seam with ultra thick based on physical simulation tests. The results show that the loading on supports is different in different zones along inclination, the largest support load in the middle section with average load of 5540kN, the larger support load in the upper section with average load of 5340kN and the lower support load in lower section with average load of 4966kN. The supports in middle and upper section of a steep mining face have the tendency of reverse rollover, and supports in the lower section have the tendency of dislocation slipping. In addition the support working resistance is estimated using the methods of load estimation and ＂R-S-F＂ system control theoretical. With the comparison on the above results, the support working resistance in Changshanzi coal mine is determined as 5000kN. Key words： steeply dipping seam; fully-mechanized caving; instability; average load; working resistance; physical simulation; load estimation; ＂R-S-F＂ system

关 键 词：大倾角煤层 综放开采 失稳 平均载荷 工作阻力 相似模拟 载荷估算 “R-S-F”系统 

分 类 号：TD355[矿业工程—矿井建设]