过水隧洞近接公路隧道开挖的安全性分析  

Safety Analysis of Water Tunnel Under Effect of Excavation of Nearby Highway Tunnel

作　　者：刘立权 戴道永 王建琼 马成斌 LIU LI-quan;DAI Dao-yong;WANG Jian-qiong;MA Cheng-bin(Rongwu Management Office of Hebei Expressway,Baoding 071000,Hebei,China;Wenzhou Ruiwen Expressway Co.,Ltd.,Wenzhou 325000,Zhejiang,China;Shaanxi Provincial Major Laboratory for Highway Bridge&Tunnel,Chang an University,Xi an 710064,Shaanxi,China)

机构地区：[1]河北省高速公路荣乌管理处,河北保定071000 [2]温州市瑞文高速公路有限公司,浙江温州325000 [3]长安大学陕西省公路桥梁与隧道重点实验室,陕西西安710064

出　　处：《筑路机械与施工机械化》2018年第10期84-87,92,共5页Road Machinery & Construction Mechanization

摘　　要：为了评价过水隧洞在近接公路隧道开挖作用下结构的安全性,采用MIDAS GTS有限元软件,对上穿公路隧道开挖对过水隧洞结构安全性的影响进行数值模拟,分析上方公路隧道开挖前后过水隧洞的变形和应力状态。结果表明:过水隧洞结构应力及变形增加显著;为保证其结构的安全性,在实际施工中需要加强上方公路隧道衬砌支护并加固过水隧洞。In order to analyze and evaluate the structural safety of the water tunnel under the effect of the excavation of nearby highway tunnel,MIDAS GTS finite element software was used to numerically simulate the influence of the excavation of the tunnel on the structural safety of the water tunnel,and the deformation and stress state of the tunnel before and after the excavation of the tunnel were analyzed.The results show that the stress and deformation of the structure of the water tunnel increase significantly,and in order to ensure the safety of the structure,it is necessary to strengthen the lining support and reinforce the tunnel in actual construction.

关 键 词：过水隧洞 开挖作用 数值模拟 安全性分析 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]