深井煤矿TBM掘进巷道围岩损伤区震波CT监测
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摘要
以张集煤矿TBM开挖1413A高抽巷为研究对象,通过平行于高抽巷的轨道顺槽,向高抽巷施工监测钻孔,利用震波CT监测技术,对TBM掘进过程中围岩的开挖损伤区进行原位测试。基于对一系列不同时段波速场数据的综合分析,给出岩体的结构特性,得到巷道开挖全过程中围岩损伤区的产生和发展的演化过程,分析该施工条件下的开挖损伤区范围、裂隙演化与TBM施工的关系,并探讨开挖损伤区的形成和演化机制。研究成果为现场支护设计、支护时机、围岩变形特性和地质资料分析提供直接依据。
In this article,with TBM excavation 1413 A high extraction lane in Zhangji Coal Mine selected as the object of the study,in-situ test was carried out with the excavation damage zone of surrounding rock in the TBM tunneling process by applying seismic CT monitoring through drilling boreholes from adjacent roadway. Base on comprehensive analysis of wave velocity data,the formation and evolution of excavation damage zone in the process of TBM excavation had been gained,the relationship between TBM excavation and range of excavation damage zone was analyzed,and the mechanics of excavation damage zone formation was explored. The research provides a basic database for rock damage behaviors study and support design.
In this article,with TBM excavation 1413 A high extraction lane in Zhangji Coal Mine selected as the object of the study,in-situ test was carried out with the excavation damage zone of surrounding rock in the TBM tunneling process by applying seismic CT monitoring through drilling boreholes from adjacent roadway. Base on comprehensive analysis of wave velocity data,the formation and evolution of excavation damage zone in the process of TBM excavation had been gained,the relationship between TBM excavation and range of excavation damage zone was analyzed,and the mechanics of excavation damage zone formation was explored. The research provides a basic database for rock damage behaviors study and support design.
引文
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[11]刘放,黄兴,时凯.基于TBM巷道开挖卡机风险分析的围岩分类[J].煤炭工程,2011(12):77-80.
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[13]高润平,刘文.隧道掘进机在塔山煤矿平硐施工中的应用[J].煤矿开采,2005,10(5):44-46.
[14]唐彬,程桦,姚直书,等.TBM施工煤矿深埋硬岩巷道围岩稳定性分析及工程应用[J].采矿与安全工程学报,2016,33(2):260-264.
[15]张平松,刘盛东,吴荣新.地震波CT技术探测煤层上覆岩层破坏规律[J].岩石力学与工程学报,2001,23(15):2 510-2 513.
[16]张平松,刘盛东,吴荣新.采煤面覆岩变形与破坏立体电法动态测试[J].岩石力学与工程学报,2009,28(9):1 870-1 875.
[2]何满潮.深部开采工程岩石力学的现状及其展望[C]//西部大开发中的岩石力学与工程问题,第八次全国岩石力学与工程学术大会论文集.北京:科学出版社,2004:88-94.
[3]刘泉声,时凯,黄兴.TBM应用于深部煤矿建设的可行性及关键科学问题[J].采矿与安全工程学报,2013,30(5):633-641.
[4]刘泉声,黄兴,时凯,等.煤矿超千米深部全断面岩石巷道掘进机的提出及关键岩石力学问题[J].煤炭学报,2012,37(12):2 006-2 013.
[5]刘泉声,黄兴,时凯,等.超千米深部全断面岩石掘进机卡机机理[J].煤炭学报,2013,38(1):79-84.
[6]刘泉声,黄兴,刘建平,等.深部复合地层围岩与TBM的相互作用及安全控制[J].煤炭学报,2015,40(6):1 213-1 224.
[7]张镜剑,傅冰骏.隧道掘进机在我国应用的进展[J].岩石力学与工程学报,2007,26(2):226-238.
[8]DELISIO A,ZHAO J,EINSTEIN H H.Analysis and prediction of TBM performance in blocky rock conditions at the L9schberg Base Tunnel[J].Tunnelling and Underground Space Technology,2013,33:131-142.
[9]屈儒,方海艳,徐建闽.引黄入晋工程深部地应力场及其影响[J].资源环境与工程,2012,26(5):444-447.
[10]张镜剑.TBM的应用及其有关问题和展望[J].岩石力学与工程学报,1999,18(3):363-367.
[11]刘放,黄兴,时凯.基于TBM巷道开挖卡机风险分析的围岩分类[J].煤炭工程,2011(12):77-80.
[12]宫全红.TBM岩巷掘进机在平峒施工中的运用[J].煤炭工程,2004(6):27-28.
[13]高润平,刘文.隧道掘进机在塔山煤矿平硐施工中的应用[J].煤矿开采,2005,10(5):44-46.
[14]唐彬,程桦,姚直书,等.TBM施工煤矿深埋硬岩巷道围岩稳定性分析及工程应用[J].采矿与安全工程学报,2016,33(2):260-264.
[15]张平松,刘盛东,吴荣新.地震波CT技术探测煤层上覆岩层破坏规律[J].岩石力学与工程学报,2001,23(15):2 510-2 513.
[16]张平松,刘盛东,吴荣新.采煤面覆岩变形与破坏立体电法动态测试[J].岩石力学与工程学报,2009,28(9):1 870-1 875.