泥质岩地层控制变形的隧道施工工法研究

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• 英文论文题名：Study on Construction Method of Large Deformation in Argillaceous Tunnels
• 论文作者：李洪涛 ; 张俊儒 ; 崔耀 ; 冯冀蒙
• 英文论文作者：LI Hongtao ; ZHANG Junru ; CUI Yao ; FENG Jimeng ; Key Laboratory of Transportation Tunnel Engineering ; Ministry of Education ; Southwest Jiaotong University
• 年：2016
• 作者机构：西南交通大学交通隧道工程教育部重点实验室;
• 论文关键词：泥质岩隧道 ; 施工工法 ; 监控量测 ; 三台阶七步开挖法
• 英文论文关键词：Argillaceous rock tunnel ; Construction method ; Monitoring measurement ; Three-bench seven-step excavation method
• 会议召开时间：2016-10-24
• 会议录名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会论文集
• 语种：中文
• 分类号：U455.4
• 学会代码：OGTY
• 会议名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会
• 会议地点：中国四川成都
• 主办单位：中国土木工程学会隧道及地下工程分会
• 学会名称：中国土木工程学会
• 页数：7
• 文件大小：2151k
• 原文格式：O
• 会议级别：全国

摘要

为解决泥质岩隧道施工中普遍存在的沉降和收敛过大问题,寻求一套适合泥质岩地层的合理工法体系,以该地层的小寨隧道开挖为依托,从安全、进度和设备利用等方面进行比选,通过围岩监控量测数据分析,采用三台阶七步开挖法,通过结合合理的开挖支护方式,能够较好地控制围岩变形量和塑性区范围,并且具有合理的经济效益,施工进度较快,适用于泥质岩隧道的施工。通过加强初支的刚度可以有效的控制围岩的变形,进一步说明开挖方式、支护刚度是影响围岩变形的主要因素。文章所展示的研究方法对于以后的施工具有一定的参考性。
In order to solve the settlement and convergence is too large in the construction of the argillaceous rock tunnel,and search for a suitable method system,this paper based on the Xiaozhai tunnel excavation,comparing the security,progress and equipment use and other aspects.By analyzing the monitoring data of surrounding rock,Three-bench Seven-step Excavation Method can well control the deformation and plastic zone of surrounding rock.This method have reasonable economic benefits and rapid construction progress.At the same time,by changing excavation method and the stiffness of the Initial support and secondary lining,the deformation of surrounding rock can be effective controlled.This shows that excavation method and the stiffness of the Initial support and secondary lining are the important factors to the deformation of surrounding rock.Each soft rock tunnel faceing different construction problems can use those factors to control the deformation of surrounding rock,this has a certain reference for the future construction.

引文

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