中国煤炭
中國煤炭
중국매탄
CHINA COAL
2014年
11期
40-43
,共4页
弱胶结%松软岩层%巷道支护%锚网联合支护%U 型支架
弱膠結%鬆軟巖層%巷道支護%錨網聯閤支護%U 型支架
약효결%송연암층%항도지호%묘망연합지호%U 형지가
weak cementation%soft rock%roadway support%bolt-mesh support%U-shaped support
根据伊犁一矿煤岩体物理力学性能和现场监测数据，分析了弱胶结软岩巷道围岩变形特征及其主要支护难点，进而提出了强刚弱柔、刚柔优化、快速封闭的支护对策，即巷道开巷初期及时封闭围岩，在锚网联合支护施工后进行喷浆，变形严重的巷道段施工 U型支架和锁棚锚杆(索)。3＃煤层带式输送机下山试验段巷道监测数据表明，该方法可较好地控制该类软岩巷道围岩的变形，有效维持了巷道的长期稳定。
根據伊犛一礦煤巖體物理力學性能和現場鑑測數據，分析瞭弱膠結軟巖巷道圍巖變形特徵及其主要支護難點，進而提齣瞭彊剛弱柔、剛柔優化、快速封閉的支護對策，即巷道開巷初期及時封閉圍巖，在錨網聯閤支護施工後進行噴漿，變形嚴重的巷道段施工 U型支架和鎖棚錨桿(索)。3＃煤層帶式輸送機下山試驗段巷道鑑測數據錶明，該方法可較好地控製該類軟巖巷道圍巖的變形，有效維持瞭巷道的長期穩定。
근거이리일광매암체물리역학성능화현장감측수거，분석료약효결연암항도위암변형특정급기주요지호난점，진이제출료강강약유、강유우화、쾌속봉폐적지호대책，즉항도개항초기급시봉폐위암，재묘망연합지호시공후진행분장，변형엄중적항도단시공 U형지가화쇄붕묘간(색)。3＃매층대식수송궤하산시험단항도감측수거표명，해방법가교호지공제해류연암항도위암적변형，유효유지료항도적장기은정。
Based on the physical and mechanical properties of coal-rock mass and the field monitoring data,the deformation characteristics and supporting difficulties of weak-cemented soft-rock roadway are analyzed. And then the support scheme is put forward including strengthe-ning rigidity & weakening gentleness,optimizing rigidity & gentleness,and rapid sealing,that is,to seal the surrounding rock timely during the initial stage of excavation,to grout after the construction of bolt-mesh support,and to set U-shaped support and locking-shed anchor in seri-ously-deformed roadway. The monitoring data from the dip test section in roadway with belt-con-veyor in 3# seam shows that the method can control the surrounding rock deformation in soft-rock roadway and effectively maintain long-term stability of the roadway.
