深井沿空留巷充填区顶板支护技术  

Technology of Roof Supporting at Stowing Area in Deep Roadway Retained along Gob

作　　者：郑西贵[1,2] 白云勃[1,2] 

机构地区：[1]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221008 [2]中国矿业大学矿业工程学院,江苏徐州221008

出　　处：《煤矿开采》2012年第3期42-45,共4页Coal Mining Technology

基　　金：国家重点基础研究发展计划(973计划)资助项目(2011CB201200);中央高校基本科研业务费专项资金(2011QNB02)

摘　　要：针对深井高地应力条件下沿空留巷过程中沿空巷道直接顶顶板松散、破碎、长期大变形的现象,提出了沿空巷道充填区顶板支护成套技术。该技术包括沿空巷道围岩时间、空间非线性变化规律,充填区顶板受力特性和分区域支护。在分析深井巷道围岩运移规律和充填区直接顶受力特性基础上,认为充填区直接顶为顶板控制的关键区域之一。将充填区顶板细化为4部分:实体煤区域,超前撕帮区域,工作面液压支架区域和已充填区域,并分别提出针对性的支护技术。经朱集1111(1)工作面沿空留巷工业实践检验,效果良好。理论成果对于相似条件的工程具有借鉴指导意义。In deep mine with high geo-stress state, immediate roof over roadway retained along gob is loose and cracked which result in long-time large deformation. Technology of roof supporting at stowing area in roadway retained along gob was put forward to solve the problem. The technology included analysis of surrounding rock time-space nonlinear variation rule, roof stress characteristic and sub-re- gion supporting. On the basis of analyzing surrounding rock movement rule and immediate roof stress rule, immediate roof at stowing ar- ea was found as a key to controlling roof. Immediate roof at stowing area was classified into 4 parts： undisturbed coal area, advanced side failure area, powered support area and stowed area. Supporting technologies for every part were put forward. Practice in 1111 （ 1 ） mining face of Zhuji Colliery showed that its effect was excellent and it could provide reference for similar engineering.

关 键 词：深井 沿空留巷 充填区 顶板支护 分区域支护 

分 类 号：TD353[矿业工程—矿井建设]