隐式中墙连拱隧道工法探讨

doi:10.3973/j.issn.1672-741X.2015.12.006

隧道建设（中英文） ›› 2015, Vol. 35 ›› Issue (12): 1271-1274.DOI: 10.3973/j.issn.1672-741X.2015.12.006

隐式中墙连拱隧道工法探讨

李海军¹, 王明年², 张万斌¹

(1. 中铁二院工程集团有限责任公司，重庆 400023； 2. 西南交通大学土木工程学院，四川成都 610031）

收稿日期:2015-03-05 修回日期:2015-07-07 出版日期:2015-12-20 发布日期:2016-01-08
作者简介:李海军(1980—)，男，四川岳池人，2009年毕业于西南交通大学，桥梁与隧道工程专业，硕士，工程师，主要从事地下和隧道工程设计与研究工作。
基金资助:
中国中铁重点科技开发计划(2011年度引导40)；重庆市应用开发计划重点项目(cstc2014yykfB30003)

Discussion on Construction Method for Doublearch Tunnel with Concealed Central Wall

LI Haijun¹, WANG Mingnian², ZHANG Wanbin^1

(1. China Railway Eryuan Engineering Group Co., Ltd., Chongqing 400023, China;  2. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China)

Received:2015-03-05 Revised:2015-07-07 Online:2015-12-20 Published:2016-01-08

摘要/Abstract

摘要：

为了选择合理的施工方案，针对隐式中墙复合式连拱隧道，对多种施工方案进行了数值模拟。分析结果表明：在多种施工方案条件下,隐式中墙复合式连拱隧道结构均能保证施工安全；对称中隔壁法和平行中隔壁法在结构安全和变形控制上较为有利。平行中隔壁法中的主辅洞间隔、同步并行施工方案是最经济、最快捷、最环保的方案，其综合进度指标比普通中导洞法提高107%，比三导洞法提高79%，可大幅提高连拱隧道的施工效率。上台阶开挖和拆撑为控制变形的关键工序，辅洞拱部与中墙搭接处、辅洞仰拱与中墙搭接处为结构安全控制部位。

关键词: 连拱隧道, 隐式中墙, 工法比选, 平行中隔墙法

Abstract:

Several construction schemes are studied for a doublearch tunnel with concealed central wall by means of numerical simulation, so as to select reasonable construction scheme. Conclusions drawn are as follows: The tunnel structure with concealed central wall can maintain the construction safety; The symmetrical temporary central wall method and the parallel temporary central wall method are more favorable in structural safety and deformation control; In the case of parallel temporary central wall method, the scheme of driving the main tunnel and secondary tunnel simultaneously with some distance delay is the most costeffective, the quickest and the most environmentfriendly scheme, which can greatly improve the construction efficiency of doublearch tunnels; The comprehensive tunneling index of the mentioned scheme is increased by 107% compared to the conventional central pilot method，and by 79% compared to threepilot method. Analysis also shows that the excavation and support removing of the top heading is the key process in deformation control, and the joint between the arch of the secondary tunnel and the central wall and the joint between the invert of the secondary tunnel and the central wall are critical points in structural safety control.

Key words: doublearch tunnel, concealed central wall, selection of construction method, parallel temporary central wall

中图分类号:

U 455

李海军, 王明年, 张万斌. 隐式中墙连拱隧道工法探讨[J]. 隧道建设, 2015, 35(12): 1271-1274.

LI Haijun, WANG Mingnian, ZHANG Wanbin. Discussion on Construction Method for Doublearch Tunnel with Concealed Central Wall[J]. Tunnel Construction, 2015, 35(12): 1271-1274.

[1]	杨学奇, 王明年, 陈树汪, 刘大刚. 软弱地层的大断面双连拱隧道设计与施工方案优化研究[J]. 隧道建设, 2019, 39(S2): 176-184.
[2]	张雷，王飞. 连拱隧道改扩建方案探讨与研究[J]. 隧道建设, 2019, 39(S1): 346-354.
[3]	刘春，贺志刚，陆启宏. 上长坪连拱隧道无中导洞施工方法比选研究[J]. 隧道建设, 2019, 39(S1): 398-403.
[4]	张金夫，郝小苏，宋林. 厦门第二西通道陆域段施工技术问题探讨[J]. 隧道建设, 2016, 36(8): 982-987.
[5]	万清，李怀鉴，杜华林，马志富，张桂扬，于全胜，刘勇，王众. 京广高速铁路石家庄六线隧道建设关键技术[J]. 隧道建设, 2016, 36(2): 241-250.
[6]	王猛，张艳艳. 遵义市子尹路南延线长距离双连拱隧道快速施工技术[J]. 隧道建设, 2015, 35(6): 589-594.
[7]	曾何腾，郭国振，高宗正，詹荣锋. 三连拱小净距隧道设计案例探讨[J]. 隧道建设, 2014, 34(增刊): 180-185.
[8]	黎敬俊，丁文其，魏新欣. 深埋连拱隧道荷载计算方法的探讨[J]. 隧道建设, 2013, 33(5): 383-387.
[9]	王刚, 朱得华, 于少辉, 熊炎林, 白中坤. 不等高三连拱隧道衬砌变形分析及控制措施[J]. 隧道建设, 2012, 32(2): 160-163.
[10]	牛晓松, 余明辉, 侯公羽. 大跨度连拱隧道开挖方法对围岩稳定性影响分析[J]. 隧道建设, 2011, 31(增刊1): 197-203.
[11]	毕强，吴金刚. 大跨分岔式隧道结构设计关键技术研究[J]. 隧道建设, 2011, 31(6): 668-677.
[12]	王利平. 大跨双连拱隧道防中隔墙病害技术[J]. 隧道建设, 2010, 30(增刊1): 438-441.
[13]	马永峰, 张志豪, 曹力桥, 吴健. 浅埋大断面大跨度连拱隧道施工变形现场监测试验研究[J]. 隧道建设, 2010, 30(4): 423-429.
[14]	岑道勇. 复合式直中墙连拱隧道在复杂地形条件下的应用[J]. 隧道建设, 2010, 30(3): 320-323.
[15]	于清浩, 高志萍, 谢勇涛. 浅埋大跨连拱隧道下穿既有建筑物施工沉降控制[J]. 隧道建设, 2010, 30(1): 67-70，77.

隐式中墙连拱隧道工法探讨

Discussion on Construction Method for Doublearch Tunnel with Concealed Central Wall

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价