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下分层回采巷道微量内错布置技术研究
引用本文:杨建辉,蔡美峰,郭延华.下分层回采巷道微量内错布置技术研究[J].岩石力学与工程学报,2002,21(8):1253-1256.
作者姓名:杨建辉  蔡美峰  郭延华
作者单位:1. 河北建筑科技学院建筑工程系,邯郸,056038;北京科技大学土木与环境工程学院,北京,100083
2. 北京科技大学土木与环境工程学院,北京,100083
3. 河北建筑科技学院建筑工程系,邯郸,056038
基金项目:原煤炭部一般项目资助课题(97-373)。
摘    要:提出了微量内错布置技术,将下分层回采巷道布置于距煤柱较近的次高应力区,并有预埋预梁护顶、锚杆护帮技术支护巷道,解决了内错距离较大带来的回采效益低的问题。钢筋混凝土和钢管混凝土搭接顶梁具有良好的承载性能和韧性,在微量内错布置技术中应用于顶梁可增大巷道净高度,解决了巷道高度低,不能满足工程要求的问题。

关 键 词:锚杆支护  下分层回采巷道  围岩  稳定性  钢管混凝土
文章编号:1000-6915(2002)08-1253-04
修稿时间:2000年12月7日

STUDY ON THE TECHNIQUE OF SPARKLET-INBOARD-TYPE LAYOUT OF GATEROAD IN THE BOTTOM SLICINGS
Yang Jianhui,Cai Meifeng,Guo Yanhua.STUDY ON THE TECHNIQUE OF SPARKLET-INBOARD-TYPE LAYOUT OF GATEROAD IN THE BOTTOM SLICINGS[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(8):1253-1256.
Authors:Yang Jianhui    Cai Meifeng  Guo Yanhua
Affiliation:Yang Jianhui1,2,Cai Meifeng2,Guo Yanhua 1
Abstract:The technique of sparklet-inboard-type layout is put forward which can be used to lay out the gateroad in the bottom slicing to hypo-high stress area relatively near the coal pillar. The problem of depressing mining benefit due to the bigger inboard distance can be improved by using the roof beam and side bolts. Reinforced concrete and concrete-filled steel tube beams are used in the technique of sparklet-inboard-type layout to increase the available height of gateroad. As a result,the problem of the deficient height of the gateroad in the bottom slicing is resolved.
Keywords:inboard type layout  bolting  gateroad in the bottom slicing  stability of surrounding rocks  concrete-filled steel tube
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