沿空巷道锚杆支护参数优化及应用研究  

Optimization of Support Parameters in Gob-side Entry and Its Application

作　　者：李彦伟[1] 马振乾[1] 张科学[1] 刘继平[2] 

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]山西焦煤集团投资公司,太原054003

出　　处：《煤炭技术》2015年第6期70-73,共4页Coal Technology

基　　金：国家重点基础研究发展规划(973)项目(2010CB226801;2010CB226804);国家自然科学基金(51174213);新世纪优秀人才项目资助(NCET-10-0775);中央高校基本科研业务专项资金资助(2009QM001)

摘　　要：通过数值分析手段,采用普氏冒落拱理论对沿空巷道内采用类比法得到的锚杆长度进行了重新校核,探讨了在此种条件下锚杆长度的变化对围岩变形、应力变化、巷道破坏的影响,并最终确定了合理的支护参数,得到了在此种条件下的围岩控制技术。Platts caving arch theory was employed to re-check the strength and length of the anhor-cables achieved by engineering analog method near the gob-side entry and then numerical method was used to evaluate the effect. The sensitiveness for length of the anchor was discussed from many aspects,such as the deformation, variation of the stress around the roadway and the breakage of it. At the end,the reasonable length of the cables was determined in this kind of circumstance.

关 键 词：普氏冒落拱 沿空巷道 巷道变形 

分 类 号：TD353[矿业工程—矿井建设]