电力隧道盾构施工穿越城市立交桥基础影响分析  

Influential Analysis on Shield Construction of Power Tunnel Passing Through Urban Overpass Foundation

作　　者：殷黎明 王路路 尹博 YIN Liming;WANG Lulu;YIN Bo(Henan Electric Power Survey&Design Institute,Zhengzhou 450007,China)

机构地区：[1]中国电建集团河南省电力勘测设计院有限公司,河南郑州450007

出　　处：《电工技术》2023年第19期57-60,共4页Electric Engineering

摘　　要：新建电力电缆隧道盾构施工,对近邻立交桥灌注桩基础的影响,是盾构法施工过程中经常遇到的重点难点。特别是富水砂层地质情况下,不同间距条件下盾构隧道对立交桥灌注桩基础的影响的研究,具有十分重要的意义。基于MIDAS GTS NX通用岩土有限元分析软件,分别建立1.0、2.0、2.7、4.0、5.0、6.0 m等不同间距情况下的有限元计算模型,分析盾构隧道侧穿立交桥施工对立交桥灌注桩基础的影响。The influence of shield construction of newly-built power cable tunnel on the foundation of cast-in-place pile of adjacent overpass is a key difficulty often encountered in the process of shield construction,especially under the geological condition of water-rich sand layer,which is of great significance to the influence of shield tunnel on the foundation of cast-in-place pile of overpass under different spacing conditions.In this paper,by utilizing MIDAS GTS NX general geotechnical finite element analysis software,the influence of shield tunnel construction on cast-in-place pile foundation of overpass is established under different spacing conditions such as 1.0 m,2.0 m,2.7 m,4.0 m,5.0 m and 6.0 m,respectively.

关 键 词：盾构 侧穿 立交桥 有限元 

分 类 号：TU74[建筑科学—建筑技术科学]