TBM隧道施工对围岩扰动的现场测试研究

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• 英文论文题名：The Study on the Disturbance of Surrounding Rock in TBM Tunnel Construction Based on Field Test
• 论文作者：吴圣智 ; 刘大刚 ; 王明年 ; 黄群伟 ; 黄舰
• 英文论文作者：WU Shengzhi ; LIU Dagang ; WANG Mingnian ; HUANG Qunwei ; HUANG Jian ; School of Civil Engineering ; Southwest Jiaotong University ; Key Laboratory of Transportation Tunnel Engineering ; Ministry of Education ; Southwest Jiaotong University ; Qingdao Metro Group Co.Ltd
• 年：2016
• 作者机构：西南交通大学土木工程学院;西南交通大学交通隧道工程教育部重点实验室;青岛地铁集团有限公司;
• 论文关键词：TBM ; 超声波 ; 弹性波速 ; 围岩松动圈
• 英文论文关键词：TBM ; Elastic wave velocity ; Ultrasonic ; Fractured rock zone
• 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：U456.3
• 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：4
• 文件大小：1053k
• 原文格式：O
• 会议级别：全国

摘要

围岩松动圈的测定对分析围岩稳定性和确定支护参数具有重要意义。文章以现场超声波测试为基础,分析了不同岩性及不同破碎程度下围岩弹性波速。通过测得的弹性波速得出了TBM施工对变质砂岩、角斑岩、花岗岩的扰动范围,将扰动范围与围岩完整性系数对比,得出了不同破碎程度的围岩松动圈。该结论可以为TBM设计、施工提供相应的借鉴。
It plays a very important role in analyzing the stability of surrounding rock and ensuring the supporting parameters to measure the loose zone of surrounding rock.Based on the field ultrasonic testing,this research analyzed the elastic wave velocity of surrounding rock under different lithology and different degree of fragmentation.From the elastic wave velocity we have measured,we can come to the disturbance range of TBM construction to the metamorphic sandstone,angle porphyry and granite.Disturbance range compared with integrity coefficient of surrounding rock,it is concluded that the different levels of broken surrounding rock loose circle.And this conclusion can provide reference for the design and construction of TBM.

引文

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