大倾角工作面支撑掩护式液压支架稳定性分析与防倒滑设计  

Stability Analysis and Anti-backsliding Design of Support Shield Type Hydraulic Support in Large-dip Working Face

作　　者：田权 Tian Quan(Shanxi Shouyang Duanwang Coal Group Co.,Ltd.,Jizhong Energy Resources Co.,Ltd.,Shouyang 045400,China)

机构地区：[1]冀中能源股份有限公司山西寿阳段王煤业集团有限公司,山西寿阳045400

出　　处：《煤矿机械》2020年第8期139-141,共3页Coal Mine Machinery

基　　金：国家自然科学基金资助(51304118)。

摘　　要：为了解决大倾角煤层受支架稳定性制约难以开采等问题,提高煤炭资源回收率,对某矿60°特大倾角工作面地质条件进行分析,并结合工程经验和有限元分析,设计了ZZ4800/21/33型支撑掩护式液压支架,对其稳定性和防倒滑性能进行研究。通过某矿井工作面试生产,在回采期间没有出现较大的倒滑现象,成功实现了大倾角煤层的稳定开采,证明该支架适用于60°以下大倾角煤层的开采。In order to solve the problem of mining difficult due to the stability of support in large-dip coal seam and improve the recovery rate of coal resources,the geological conditions of the working face with an extremely large-dip angle of 60°in a mine were analyzed.Combined with engineering experience and finite element analysis,ZZ4800/21/33 support shield type hydraulic support was designed,and its stability and anti-backsliding performance were studied.Through the interview production in working face of a mine,during the mining there was no significant backsliding phenomenon,and the stable mining of the large-dip coal seam was successfully achieved.It is proved that the support is suitable for the mining of the large-dip coal seam below 60°.

关 键 词：伪俯斜 特大倾角 有限元分析 防倒滑系统 

分 类 号：TD355.4[矿业工程—矿井建设]