综放沿空掘巷合理位置及控制技术  

Rational position and control technique of roadway driving along next goaf in fully mechanized top coal caving face

作　　者：李磊[1] 柏建彪[1] 王襄禹[1] 

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矿业工程学院,江苏徐州221116

出　　处：《煤炭学报》2012年第9期1564-1569,共6页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(51174195);煤炭资源与安全开采国家重点实验室自主研究课题资助项目(SKLCRSM08X04);中国矿业大学青年科研基金资助项目(2008A002)

摘　　要：采用理论分析方法,建立了沿空掘巷的结构力学模型,推导出"内应力场"宽度表达式,确定了合理的沿空掘巷位置,预计了沿空巷道围岩变形量,进而确定巷道断面参数。提出顶板高强度高预应力锚杆支护和高强度锚索加强支护、减小窄煤柱帮锚杆间距和实体煤帮二次支护的非对称综放沿空掘巷围岩控制技术,采用系统信息设计方法确定了锚杆支护参数,成功地应用于工程实践。By using of theoretical analysis method, the structural mechanical model of roadway driving along next goal was established, and the width expression of internal stress fields was derived, the rational position of roadway driving along next goaf was determined and the deformation of the surrounding rock was also calculated. Meanwhile, the pa- rameter of roadway was given. At last, the control technology of roadway driving along next goaf in thick seam was put forward, and the first is high strength and pretension bolt supporting to control roof,the second is decreasing bolt inter- val of roadway gob-side, the last is secondary supporting to the integrated coal side of roadway, based on this, the bolt supporting parameter was determined by system information design method, and it is successfully applied to engineer- ing practile.

关 键 词：综放工作面 沿空掘巷 非对称控制技术 二次支护 系统信息设计法 

分 类 号：TD353[矿业工程—矿井建设]