无煤柱综放开采大变形软岩巷道卸压维护分析及其应用  

DISTRESSING MAINTENANCE ANALYSIS ON ROADWAY OF LARGE DEFORMATION IN SOFT ROCKS WITH PILLARLESS FULLY-MECHANIZED SUBLEVEL CAVING SYSTEM AND ITS APPLICATION

作　　者：陈建余[1] 杨超[2] 朱岳明[1] 何富连[3] 

机构地区：[1]河海大学水利水电学院,南京210098 [2]同济大学地下建筑与工程系,上海200092 [3]中国矿业大学采矿工程系,徐州221008

出　　处：《岩石力学与工程学报》2002年第8期1183-1187,共5页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金资助项目(59734090)。

摘　　要：借助理论分析、数值计算、现场实测等方法,主要介绍了无煤柱综放开采沿空软岩巷道围岩结构及其变形破坏规律。首次提出了应用本煤层布置卸压巷并结合松动爆破技术解决沿空软岩巷道有效维护的难题。同时探讨了一般卸压原理及具体的卸压方案。理论和实践证明,这是实现沿空软岩巷道围岩控制的科学思路和有效方法。With the help of theoretical analysis,numerical calculation and in-situ observations,the structure around the tailentry in soft rocks and its deformation and failure regularity in pillarless fully-mechanized sublevel caving are mainly introduced. The in-seam distressing entry layout is combined with concussion blasting technique,so that the tailentry in soft rocks can be effectively maintained. Meanwhile,the general distressing principle and practical distressing program are discussed. The theory and practice prove that this is a scientific strategy and an effective decision-making to bring the tailentry in soft rocks under control.

关 键 词：无煤柱综放开采 软岩巷道 卸压维护 数值分析 

分 类 号：TD322.2[矿业工程—矿井建设]