超大断面黄土隧道施工方案优化研究
摘要:以兰秦快速路忠和至水阜段付家窑1#隧道工程为背景，从技术经济、监控量测和数值模拟等方面介绍了超大断面黄土隧道的施工优化方案。通过对隧道的拱顶沉降及周边位移收敛进行现场监控量测，获取数据进行数学处理分析，得到隧道在开挖过程中围岩及支护受力变形规律。同时，采用有限元软件MIDAS/GTS建立三维模型对隧道开挖过程进行数值模拟，所得计算数据与现场监测数据对比，得出隧道稳定的结论，说明施工方案优化合理，对目前同类型隧道的施工具有借鉴指导意义。
Abstract:Through the research of the Fu Jiayao 1# tunnel for Zhonghe to Shuifu section of the Lanzhou-Qinwangchuan Expressway,the optimization of construction scheme for loess tunnel with super section was proposed from the aspects of technical economy,monitoring measurement,numerical simulation,etc.Mathematical analysis was proceeded based on the data from on-site monitoring measurement of tunnel vault subsidence and peripheral displacement convergence.The force and deformation of the tunnel surrounding rock and the support in the excavation process was summarized.Meanwhile,the threedimensional model of tunnel excavation process was simulated by using finite element software MIDAS/GTS.Comparing the calculated data with the on-site monitoring data,the tunnel is demonstrated to be stability,which shows that the construction schemeis optimized and reasonable.This method is of reference significance for the construction of the same type tunnels currently.
中文标题：
超大断面黄土隧道施工方案优化研究
Optimization of Construction Scheme for Loess Tunnel with Super Section
作者：
唐格
Tang Ge
作者简介:唐格，男，1987生，湖北京山人，硕士研究生，工程师，主要从事高速公路技术管理工作。E-mail：405071182@qq.com
通讯地址：
绍兴市交通建设有限公司, 浙江绍兴 312000
ShaoxingTrafficConstructionCo.,Ltd.,Shaoxing312000,Zhejiang,China
中图分类号:U455
doi:10.3969/j.issn.1007-2993.2019.05.013
出版物：岩土工程技术
收稿日期:2019-04-08
网络出版日期:2021-07-06
关键词:超大断面,黄土隧道,施工优化,现场监测,数值分析
Key words:super section,loess tunnel,construction optimization,on-site monitoring,numerical analysis
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