隧道斜交横通道施工对主隧道衬砌结构的影响研究

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摘要针对隧道斜交横通道施工对主隧道衬砌结构产生影响，以哈尔滨绕城高速天恒山公路隧道工程为依托，采用现场实测和三维有限元数值模拟的方法，对横通道施工阶段主隧道衬砌结构的变形规律和受力特性进行研究。研究结果表明：(1) 横通道施工导致交叉口附近一定范围内的主隧道衬砌产生变形和应力集中，其影响范围在交叉口锐角一侧为1.82D(D为主隧道洞跨)，在交叉口钝角一侧为1.32D；(2) 衬砌变形以拱部下沉为主，在边墙部位产生外扩现象；(3) 横通道的开挖破坏了主隧道原有的成拱效应，使交叉口处的衬砌产生应力集中；(4) 随着横通道开挖深度的增加，主隧道衬砌结构的变形和应力逐渐减小，趋于稳定；(5) 交叉口两侧的主隧道衬砌结构强度安全系数均大于设计值2.0；(6) 交叉口锐角一侧的变形和应力集中程度大于钝角一侧，而安全系数小于钝角一侧。研究成果对类似工程的设计与施工具有借鉴作用。

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	罗彦斌1
	陈建勋1
	王梦恕2

关键词 ：隧道工程, 斜交横通道, 衬砌结构, 三维有限元法, 安全系数

Abstract：For the influence of skew horizontal adit construction on the main tunnel lining structure，the Tianhengshan highway tunnel engineering of Harbin by-pass city expressway is taken as an example and the actual measurement and 3D finite element simulation are adopted to study the deformation regularity and the stress characteristics of main tunnel lining structure during the horizontal adit construction stage．The research results are shown as follows：(1) the construction of horizontal adit leads the main tunnel lining near intersection to occurre deformation and stress concentration，and the influence range in acute angle side of intersection is 1.82D(D is main tunnel span)，in obtuse angle side of intersection is 1.32D；(2) the lining deformation mainly is arch settlement，and secondly is side wall expansion；(3) the excavation of horizontal adit destroys the original arch effect of main tunnel，so as to create the stress concentration on the lining at the intersection；(4) with the excavation depth increment of horizontal adit，the deformation and stress of the main tunnel lining structure gradually decrease and tend to be stable；(5) The safety factors of main tunnel lining structural strength are greater than design values of 2.0 on both sides of the intersection；(6) the deformation and stress concentration at the intersection acute angle side are greater than that of the obtuse angle side，but the safety factor of the former is less than that of the latter．The research results can be used as reference for the design and construction of other similar engineering.

Key words： tunnelling engineering skew horizontal adit lining structure 3D finite element method safety factor

引用本文:

罗彦斌1，陈建勋1，王梦恕2. 隧道斜交横通道施工对主隧道衬砌结构的影响研究[J]. 岩石力学与工程学报, 2010, 29(S2): 3792-3798.
LUO Yanbin1，CHEN Jianxun1，WANG Mengshu2. STUDY OF INFLUENCE OF SKEW HORIZONTAL ADIT TUNNEL CONSTRUCTION ON MAIN TUNNEL LINING STRUCTURE. , 2010, 29(S2): 3792-3798.

链接本文:

https://rockmech.whrsm.ac.cn/CN/Y2010/V29/IS2/3792

[1] 中华人民共和国行业标准编写组. JTG D70–2004公路隧道设计规范[S]．北京：人民交通出版社，2004.(The Professional Standards Compilation Group of People¢s Republic of China. JTG D70–2004 Code for design of road tunnel[S]. Beijing：China Communications Press，2004.(in Chinese))

[2] 张志强，许江，万晓燕. 公路长隧道与横通道空间斜交结构施工力学研究[J]. 岩土力学，2007，28(2)：247–252.(ZHANG Zhiqiang，XU Jiang，WAN Xiaoyan. Study of tunnel construction mechanics at intersection of horizontal adit and major tunnel in highway[J]. Rock and Soil Mechanics，2007，28(2)：247–252.(in Chinese))

[3] 刁志刚. 横通道与大断面隧道交叉口施工方法探讨[J]. 铁道建筑，2007，(10)：35–37.(DIAO Zhigang. Research on construction method at intersection of horizontal adit and large-section tunnel[J]. Railway Engineering，2007，(10)：35–37.(in Chinese))

[4] 李宏晋. 分离式隧道斜交横通道施工方法[J]. 铁道标准设计，2007，(增2)：82–84.(LI Hongjin．Construction method of skew horizontal adit in the separated tunnel[J]. Railway Standard Design，2007，(Supp.2)：82–84.(in Chinese))

[5] 朱永全，冯卫星，陈豪雄. 北京地铁西单车站2^#施工横通道交叉点部位结构有限元分析[J]. 石家庄铁道学院学报，1993，6(3)：39–43.(ZHU Yongquan，FENG Weixing，CHEN Haoxiong. The finite element analysis of cross duct in Xidan metro station #2[J]. Journal of Shijiazhuang Railway Institute，1993，6(3)：39–43.(in Chinese))

[6] 陈中. 公路隧道行车横洞与正洞交叉连接部的设计简介[J]. 科学技术通讯，2000，(1)：1–4.(CHEN Zhong. Introduction to intersection design of adit and highway tunnel[J]. Journal of Science and Technology Communication，2000，(1)：1–4.(in Chinese))

[7] 张志强，苏江川，姜元俊. 马王槽主隧道与横通道交叉部施工受力特征数值模拟分析[J]. 公路交通科技，2007，24(1)：109–113. (ZHANG Zhiqiang，SU Jiangchuan，JIANG Yuanjun. Three dimensional FEM simulation analysis of construction of intersection of transverse gallery and main tunnel[J]. Journal of Highway and Transportation Research and Development，2007，24(1)：109–113.(in Chinese))

[8] 马栋，黄立新. 铁路长大隧道斜井与正洞交叉段软弱层状围岩开挖支护施工方法浅析[J]. 世界隧道，1999，(3)：23–27.(MA Dong，HUANG Lixin. An elementary introduction to soft layered surrounding rock support at the intersection of inclined shaft and main tunnel in large railway tunnel[J]. World Tunnel，1999，(3)：23–27.(in Chinese))

[9] 雷金山，苏锋，阳军生，等. 土洞对地铁隧道开挖的影响性状研究[J]. 铁道科学与工程学报，2008，5(2)：57–63.(LEI Jinshan，SU Feng，YANG Junsheng，et al．Effect behaviors of caves on tunneling excavation[J]. Journal of Railway Science and Engineering，2008，5(2)：57–63.(in Chinese))

[10] 韩桂武，刘斌，范鹤. 浅埋黄土隧道衬砌结构受力分析[J]. 岩石力学与工程学报，2007，26(增1)：3 250–3 256.(HAN Guiwu，LIU Bin，FAN He. Mechanical characteristics of tunnel lining structure in shallow-buried loess area[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.1)：3 250–3 256.(in Chinese))