| 大伙房输水工程特长隧洞TBM选型及施工关键技术研究 |
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| 引用本文： | 张军伟,梅志荣,高菊茹,唐与,章元爱.大伙房输水工程特长隧洞TBM选型及施工关键技术研究[J].现代隧道技术,2010,47(5). |
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| 作者姓名： | 张军伟 梅志荣 高菊茹 唐与 章元爱 |
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| 作者单位： | 中国铁道科学研究院;中铁西南科学研究院有限公司;辽宁润中供水有限责任公司; |
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| 基金项目： | 辽宁水利厅科技开发项目 |
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| 摘 要： | 大伙房输水工程隧洞长85.32 km,开挖洞径8.03 m,属于深埋特长隧洞.隧洞施工采用以TBM为主、钻爆法为辅的联合施工方式.隧洞穿越区域水文地质条件复杂,开挖中面临的主要工程地质问题有围岩稳定性、隧洞涌水、石英砂岩的掘进效率及岩爆等三大关键技术难题.文章通过对大量文献资料和工程实例的研究,概述了TBM近一个世纪的发展及其在隧道建设中的应用现状和主要问题.通过对大伙房特长隧洞所穿越区域的地质条件以及主要工程地质问题进行分析,并结合国内外已有的TBM施工经验,以及对特长隧洞TBM选型进行分析,决定选用锚喷支护+模筑混凝土复合衬砌结构支护系统代替管片衬砌结构,采用连续皮带机高速度出碴、TBM掘进独头长距离施工通风以及TBM洞内组装和检修等技术,对大伙房输水工程特长隧洞高速度、高标准、高质量的建成发挥了重要的保证作用,也可为今后类似工程提供参考和借鉴.
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| 关 键 词： | 输水特长隧洞 敞开式TBM 锚喷支护 NATM理论 |
Study on TBM Type-selection and Key Technologies in Dahuofang Water Diversion Tunnel |
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| Zhang Junwei,Mei Zhirong,Gao Juru,Tang Yu,Zhang Yuanai.Study on TBM Type-selection and Key Technologies in Dahuofang Water Diversion Tunnel[J].Modern Tunnelling Technology,2010,47(5). |
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| Authors: | Zhang Junwei Mei Zhirong Gao Juru Tang Yu Zhang Yuanai |
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| Institution: | Zhang Junwei1,2 Mei Zhirong2 Gao Juru2 Tang Yu3 Zhang Yuanai2(1 China Academy of Railway Sciences,Beijing 100081,2 China Railway Southwest Research Institute Co.,Ltd.,Chengdu 610031,3 Liaoning Runzhong Water-supply Co.,Shenyang 110000) |
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| Abstract: | Dahuofang water diversion tunnel has an excavation diameter of 8.03m and a length of 85.32km with large overburden.TBMs were employed for the main driving supplemented with drill and blast.The hydro-geological conditions along tunnel alignment were very complicated.Three key problems were met with in tunneling,i.e.stability of mass rock,water gushing,tunneling advance rate and rockburst in quartz sandstone.Based on the study of a large amount of data and project cases of TBM application,a brief summary abou... |
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| Keywords: | Long water diversion tunnel TBM Open TBM Support of anchor bolt & shotcrete NATM theory |
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