公路双连拱隧道中隔墙施工技术研究  

RESEARCH ON PARTITION WALL CONSTRUCTION TECHNOLOGY IN HIGHWAY DOUBLE-ARCH TUNNEL

作　　者：孟平原 路镇武 MENG Ping-yuan;LU Zhen-wu(The Third Construction Engineering Co.Ltd.of China Construction Second Engineering Bureau,100070,Beijing,China)

机构地区：[1]中建二局第三建筑工程有限公司,北京100070

出　　处：《建筑技术》2023年第18期2213-2215,共3页Architecture Technology

基　　金：大断面双连拱隧道关键技术研究及应用(24296D200005)。

摘　　要：由于双连拱隧道工序烦琐、内部应力转换复杂等特点,在双连拱隧道在施工过程中,中隔墙受力及其稳定性等一系列有待解决的工程施工技术难题。中隔墙的形式多种多样其受力状况不尽相同,注重对整体直中隔墙、整体曲中隔墙形式分析,运用MIDAS有限元程序建立计算模型,通过对比不同形式中隔墙的受力情况,通过理论分析和现场实践等方法,提出了增加中隔墙稳定性及防止中隔墙变形的措施,如合理的断面形式、加强中隔墙顶部注浆等等。合理的断面形式的中隔墙可以改善其受力情况,以及对双连拱隧道的设计和施工提供一定的理论借鉴。Due to the cumbersome process and complex internal stress conversion of double-arch tunnels,a series of engineering construction technical problems to be solved,such as the stress and stability of the partition wall in the construction process of double-arch tunnels.This paper focuses on the analysis of the form of the overall straight partition wall and the integral curved partition wall,uses the MIDAS finite element program to establish a calculation model,compares the force of the partition wall in different forms,and puts forward measures to increase the stability of the middle partition wall and prevent the deformation of the middle partition wall through theoretical analysis and field practice,such as:reasonable cross-sectional form,strengthening the top grouting of the middle partition wall,etc.The reasonable cross-sectional form of the partition wall can improve its force situation and provide certain theoretical references for the design and construction of double-arch tunnels.

关 键 词：双连拱隧道 数值模拟 中隔墙施工 

分 类 号：TU74[建筑科学—建筑技术科学]