基于数值模拟的双条隧道曲线段施工方案比选研究  

NUMERICAL SIMULATION-BASED COMPARISON AND SELECTION OF CONSTRUCTION SCHEMES FOR CURVED SECTION OF DUAL TUNNELS

作　　者：赵兰英[1] 宗景美 李新 ZHAO Lan-ying;ZONG Jing-mei;LI Xin(Civil Engineering of Shangqiu Institute of Technology,476000,Shangqiu,He'nan,China;Zhengzhou Metro Group Co.,Ltd.,450000,Zhengzhou,China)

机构地区：[1]商丘工学院土木工程学院,河南商丘476000 [2]郑州市地铁集团有限公司,郑州450000

出　　处：《建筑技术》2020年第8期908-911,共4页Architecture Technology

基　　金：河南省科技攻关项目(192102310510)。

摘　　要：以某双条曲线隧道为工程背景,采用有限差分法对双隧道曲线段不同施工方案进行数值模拟,对比分析3种不同施工工艺隧道的应力分布、位移分布及强度破坏,确定采用单盾构施工的位移、主应力及破坏区等指标较优但工期较长;另外2种方案虽工期较短,但施工中位移及应力过大的区域应采取一定的加固措施。Based on a dual curved tunnels project,finite difference method was adopted for numerical simulation of different construction schemes for the curved section of dual tunnels.Stress distribution,displacement distribution and strength damage of tunnels constructed by using three different construction processes.It was found that single shield construction process has better displacement,main stress and failure zone but requires long construction period;the other two schemes require relatively short construction period,but certain strengthening measure shall be applied at zones having excessive displacement and stress during construction.

关 键 词：地铁隧道 曲线段 数值模拟 

分 类 号：TU71[建筑科学—建筑技术科学]