超前支架支护效果的分析与研究  

Analysis of Supporting Effect of Advanced Support

作　　者：李刚 

机构地区：[1]中国煤炭科工集团太原研究院有限公司,山西太原030006 [2]山西天地煤机装备有限公司,山西太原030006

出　　处：《煤矿机电》2014年第6期4-6,10,共4页Colliery Mechanical & Electrical Technology

基　　金：山西省科技攻关项目(20110321005-01)

摘　　要：以中煤平朔井工矿9#煤层14100综放工作面为研究对象,采用实测超前压力与数值模拟分析相结合的方法,分析了受二次采动影响的回风巷道应力及位移变化规律。结果表明:锚杆锚索与超前支架联合支护方式与锚杆锚索与单体支柱联合支护方式相比,顶板最大下沉量、巷道两帮移近量、最大底臌量及顶板最大垂直应力均明显改善。Taking the full-mechanized caving face 14 100 in the 9＂ coal seam as research object, and using the measured advanced roof pressure combined with the data plus numerical analysis methods, the stress and displacement variation of the return airway under secondary mining impact are analyzed. The results show that the joint supporting effect of an advanced support with anchoring bolt and rope is evidently improved compared with that if there is no advanced support instead the individual props, the maximum roof subsidence decrease, the closing of roadway walls, maximum floor heave and maximum roof vertical stress are all improved.

关 键 词：中等稳定顶板 超前支架 数值模拟 支护效果 

分 类 号：TD355.4[矿业工程—矿井建设]