大倾角工作面支架稳定性控制技术  

Stability Controlling Technology of Supports in Large Dip Angle Face

作　　者：李小萌[1] 程占博 赵青波 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [2]冀中能源股份有限公司东庞矿,河北邢台054001

出　　处：《煤矿安全》2016年第9期64-66,70,共4页Safety in Coal Mines

基　　金：国家重点基础研究发展计划(973计划)资助项目(2013CB227903);国家自然科学基金煤炭联合基金资助项目(U1361209)

摘　　要：针对大倾角工作面支架稳定性差,易发生支架下滑、倾倒和咬架现象,通过对单支架和多支架的稳定性在不同工作状态下的力学分析,得出了支架失稳的力学机理,指出支架的失稳主要发生在降架、移架过程中,只要采取合理的支架管理措施即可保证支架的稳定性。通过采用合理的移架顺序、移架前确保相邻支架稳定、增大支架侧护板宽度、充分利用支架本身的侧护千斤顶和底调千斤顶调整支架等综合性技术措施保证了大倾角工作面支架的稳定。Aiming at the poor stabilityof toppling,sliding and slanting supports,instability mechanism of support was obtained through mechanical analysis of single and several supports at different working conditions.The instability of supports mainly occurred during dropping and moving.The stability of supports can be guaranteed by rational management measures.By comprehensive solutions of rational moving sequence,making the neighboring supports stable before moving supports,enlarging the width of side guard plate,taking full advantage of side and bottom jacks to adjust the condition,the supports in greatly inclined seam remains are stable.

关 键 词：大倾角工作面 支架稳定性 力学模型 倾倒和下滑 支架管理 

分 类 号：TD353[矿业工程—矿井建设]