强震区水下盾构隧道地震响应分析

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英文篇名：Seismic Responses Analysis of Shield Tunnel Underwater in Strong Earthquake Area 中文刊名：公路工程 英文刊名：Highway Engineering 作者：沙明元 ; 申骞 ; 王道远 ; 朱正国 英文作者：SHA Mingyuan ; SHEN Qiang ; WANG Daoyuan ; ZHU Zhengguo ; China Railway Construction Corporation Limited ; Department of Civil Engineering ; Hebei Jiaotong Vocational and Technical College ; School of Civil Engineering ; Shijiazhuang Tiedao University ; School of Civil Engineering ; Southwest Jiaotong University 中文关键词：强震区 ; 盾构 ; 地震响应 ; 隧道 英文关键词：earthquake area ; shield tunnel ; seismic response ; tunnel 出版日期：2015-04-20 机构：中国铁建股份有限公司;河北交通职业技术学院土木工程系;石家庄铁道大学土木工程学院;西南交通大学土木工程学院; 年：2015 期：02 出版单位：公路工程

摘要

以"河北第一盾"曹妃甸工业区综合管廊工程为依托,选取典型砂土液化断面,利用flac2d有限差分软件模拟了地震作用下管片及土体地震响应。孔隙水压力变化表明管廊上部土体较下部土体更易液化;EI波较汶川波作用下,管片受力偏于安全,管片变形不满足要求,需采取必要加固措施。其结论可为类似工程提供参考和借鉴。
Based on the comprehensive pipe Project of Caofeidian Industrial Zone Gallery known as ‘the 1st shield of He Bei',select typical section of sand liquefaction,seismic responses of shield tunnel in liqucfiable soil are studied by flac2 d. The pore water pressure changes indicate that the pipe upper layer of gallery more easily than below layer. Compared to EI wave and Wenchuan wave,the stress of segment is safe,but the deformation can not meet requirements,Some necessary measures for strengthening should be taken. and provided some reference to perfect the related design specifications.

引文

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