大断面通道近距离上穿盾构隧道引起的变形分析

doi:10.13722/j.cnki.jrme.2014.s2.036

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Abstract During the upper crossing construction process in the project of a certain large section pedestrian passageway upper crossing the running shield tunnel of Beijing subway line No.10，the vertical displacements of shield tunnel structure，the horizontal convergence displacements of shield tunnel structure and the vertical displacements of track bad structure were monitored and analyzed. In this section，the minimum distance was 1.97 m and the CRD method of shallow tunneling was applied. The site monitoring results show that：(1) The deformation of existing subway tunnel structure due to the large section passageway construction is mainly resulted from up floating. The vertical displacement of shield tunnel structure varies from －0.10 to 4.10 mm；the horizontal convergence of shield tunnel structure ranges from －0.03 to －1.80 mm；while the vertical displacement of track bad structure is from －0.30 to 2.90 mm. And the deformations of tunnel structure and track bed structure are coordinating. (2) The variations of three monitoring indices are consistent. They all experience four stages，the upward rapidly area，the down abruptly area，the fluctuating decreased area and the later fluctuating stability area. After completing the tunnel face of passageway，the up floating deformation rate of tunnel structure is significantly increased. When grouting from the floor of passageway，however，it is obvious that grouting controls the up floating deformation of tunnel. When the grouting is completed，the up-floating deformation rate of tunnel structure becomes flat. After the secondary lining of passageway is completed，the tunnel overall is sinking with fluctuation because of the load above shield tunnel increase，and finally reaches stable. The analysis result of this project shows that grouting from floor of passageway can significantly control up floating，which can be applied in the similar projects.

Key words： tunnelling engineering shield tunnel large section upper crossing construction vertical displacement horizontal convergence displacement site monitoring

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	Articles by authors
	HE Meide1
	2
	LIU Jun3
	LE Guiping4
	ZHANG Dingli1
	WANG Mengshu1

Cite this article:

HE Meide1,2,LIU Jun3, et al. DEFORMATION ANALYSIS FOR SHIELD TUNNEL UPPER CROSSING BY CLOSE RANGE LARGE SECTION PASSAGEWAY[J]. , 2014, 33(S2): 3682-3691.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.036 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/3682

[1]	黄栩，黄宏伟，张冬梅. 开挖卸荷引起下卧已建盾构隧道的纵向变形研究[J]. 岩土工程学报，2012，34(7)：1 241-1 249.(HUANG Xu，HUANG Hongwei，ZHANG Dongmei. Longitudinal deflection of existing shield tunnels due to deep excavation[J]. Chinese Journal of Geotechnical Engineering，2012，34(7)：1 241-1 249.(in Chinese))
[2]	侯艳娟，张顶立，陈峰宾. 隧道施工下穿建筑物注浆抬升机制及预测研究[J]. 岩石力学与工程学报，2011，30(12)：2 407-2 415.(HOU Yanjuan，ZHANG Dingli，CHEN Fengbin. Study of mechanism and prediction of grouting uplift in tunnel construction undercrossing buildings[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(12)：2 407-2 415.(in Chinese))
[3]	陈宝，徐胜文，彭芳乐，等. 下穿越工程施工微扰动评价指标试验研究[J]. 岩石力学与工程学报，2011，30(增1)：2 682-2 689. (CHEN Bao，XU Shengwen，PENG Fangle，et al. Experimental study of indices for evaluating small disturbance in underground-crossing construction[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(Supp.1)：2 682-2 689.(in Chinese))
[4]	杨宇恒，廖少明，范垚垚，等. 盾构上、下夹穿运营地铁的变形预测与对比分析[J]. 岩石力学与工程学报，2011，30(增2)：4 072-4 077. (YANG Yuheng，LIAO Shaoming，FAN Yaoyao，et al. Deformation predicting and contrast analysis of running subway caused by shield up-under crossing[J]. Chinese Journal of Rock Mechanics andEngineering，2011，30(Supp.2)：4 072-4 077.(in Chinese))
[5]	丁祖德，彭立敏，施成华. 地铁隧道穿越角度对地表建筑物的影响分析[J]. 岩土力学，2011，32(11)：3 387-3 392.(DING Zude，PENG Limin，SHI Chenghua. Analysis of influence of metro tunnel crossing angles on ground buildings[J]. Rock and Soil Mechanics，2011，32(11)：3 387-3 392.(in Chinese))
[6]	贺美德，刘军，乐贵平，等. 盾构隧道近距离侧穿高层建筑的影响研究[J]. 岩石力学与工程学报，2010，29(3)：603-608.(HE Meide，LIU Jun，LE Guiping，et al. Study of impact of shield tunneling side-crossing on adjacent high building[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(3)：603-608.(in Chinese))
[7]	张治国，黄茂松，王卫东. 层状地基中隧道开挖对临近既有隧道的影响分析[J]. 岩土工程学报，2009，31(4)：600-608.(ZHANG Zhiguo，HUANG Maosong，WANG Weidong. Analysis on response of existing tunnels due to adjacent tunneling in multi-layered soils[J]. Chinese Journal of Geotechnical Engineering，2009，31(4)：600-608. (in Chinese))
[8]	李东海，刘军，牛晓凯，等. 开挖卸荷对下卧初支隧道的纵向变形的影响研究[J]. 岩土力学，2009，30(2)：563-566.(LI Donghai，LIU Jun，NIU Xiaokai，et al. Research on vertical deformation of down shotcrete tunnel during unloading of pit excavation[J]. Rock and Soil Mechanics，2009，30(2)：563-566.(in Chinese))
[9]	王占生，张顶立. 浅埋暗挖隧道近距离下穿既有地铁的关键技术[J]. 岩石力学与工程学报，2007，26(增2)：4 208-4 214.(WANG Zhansheng，ZHANG Dingli. Key techniques on shallows embedded tunnel constructed beneath existing subway tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.2)：4 208-4 214. (in Chinese))
[10]	张成平，张顶立，王梦恕. 大断面隧道施工引起的上覆地铁隧道结构变形分析[J]. 岩土工程学报，2009，31(5)：805-810.(ZHANG Chengping，ZHANG Dingli，WANG Mengshu. Structural deformation of overlying subway tunnels induced by tunneling[J]. Chinese Journal of Geotechnical Engineering，2009，31(5)：805-810.(in Chinese))
[11]	沈良帅，贺少辉. 复杂环境条件上跨下穿同一既有地铁隧道的变形控制分析及施工方案优化[J]. 岩石力学与工程学报，2008，27(增1)：2 893-2 900.(SHEN Liangshuai，HE Shaohui. Subsidence controlling and construction scheme optimization of cutting across and under passing an existing metro tunnel under complex environmental conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.1)：2 893-2 900.(in Chinese))
[12]	陈亮，黄宏伟，王如路. 近距离上部穿越对原有隧道沉降的影响分析[J]. 土木工程学报，2006，39(6)：83-87.(CHEN Liang，HUANGHongwei，WANG Rulu. Analysis of the observed longitudinal settlement of a tunnel caused by an adjacent shield tunneling on top[J]. China Civil Engineering Journal，2006，39(6)：83-87.(in Chinese))
[13]	陶连金，唐四海，金亮. 隧道上穿既有车站结构的变形预测及安全评估[J]. 地下空间与工程学报，2008，4(3)：442-447.(TAO Lianjin，TANG Sihai，JIN Liang. Deformation prediction and risk evaluation of the existing subway station structure with above-traversedtunnel[J]. Chinese Journal of Underground Space and Engineering，2008，4(3)：442-447.(in Chinese))
[14]	丁传松，杨兴富. 盾构近距离上穿越对已运营隧道的影响分析[J]. 施工技术，2009，38(1)：48-50.(DING Chuansong，YANG Xingfu. Influence analysis on shield tunnel up-crossing nearby built tunnel[J]. Construction Technology，2009，38(1)：48-50.(in Chinese))
[15]	张丽娟，孙巍，谢明，等. 竖向近距离卸载对既有隧道影响的数值分析[J]. 地下空间与工程学报，2010，6(增1)：1 408-1 412. (ZHANG Lijuan，SUN Wei，XIE Ming，et al. Numerical analysis of the influence of unloading on an existing tunnel in close distance[J]. Chinese Journal of Underground Space and Engineering，2010，6(Supp.1)：1 408-1 412.(in Chinese))
[16]	郭磊，方俊波. 超浅埋、超近距离穿越运营地铁区间人行隧道施工技术[J]. 现代隧道技术，2001，38(2)：34-39.(GUO Lei，FANG Junbo. Construction technique of a shallow-depth pedestrian tunnel under metro running tunnels in operation[J]. Modern Tunnelling Technology，2001，38(2)：34-39.(in Chinese))
[17]	王梦恕. 中国隧道及地下工程修建技术[M]. 北京：人民交通出版社，2010：310.(WANG Mengshu. Tunnelling and underground engineering technology in China[M]. Beijing：China Communications Press，2010：310.(in Chinese))