Influences of construction of foundation pits on deformation of adjacent operating tunnels in whole process based on monitoring data

XU Si-fa; ZHOU Qi-hui; ZHENG Wen-hao; ZHU Yong-qiang; WANG Zhe

doi:10.11779/CJGE202105003

Volume 43 Issue 5

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Chinese Journal of Geotechnical Engineering > 2021 > 43(5): 804-812. > DOI: 10.11779/CJGE202105003

XU Si-fa, ZHOU Qi-hui, ZHENG Wen-hao, ZHU Yong-qiang, WANG Zhe. Influences of construction of foundation pits on deformation of adjacent operating tunnels in whole process based on monitoring data[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(5): 804-812. DOI: 10.11779/CJGE202105003

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Influences of construction of foundation pits on deformation of adjacent operating tunnels in whole process based on monitoring data

1.
Institute of Geotechnical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
2.
Powerchina Huadong Engineering Corporation Limited, Hangzhou 311122, China
3.
Zhejiang Guolian Construction Corporation Limited, Hangzhou 310052, China

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Received Date: July 05, 2020
Available Online: December 04, 2022

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Abstract

Abstract

Due to the deformation of operating subway tunnels near foundation pit, the normal use and safe operation of subway tunnels are adversely affected. Based on the monitoring data of deformation of a subway tunnel near operation during the construction of foundation pits, the whole process of tunnel deformation from the envelope construction of foundation pits to the end of excavation is analyzed. The results show that the TRD construction has a soil-squeezing effect on the adjacent tunnel, and the tunnel presents a deformation mode of "horizontal contraction and vertical stretch". The displacement of the tunnel towards the foundation pit is caused by the construction of three-axis cement mixing pile. The construction of underground diaphragm wall is equivalent to the unloading effect on the adjacent tunnel, and the tunnel presents the deformation mode of "horizontal stretching, vertical contraction ". The settlement of ballast bed generated by the gap between enclosure structures and excavation of the foundation pit accounts for the largest proportion of the total ballast bed settlement, reaching 70.24%. The increment of horizontal displacement of the tunnel is the most prominent in the construction stage of the envelope, accounting for 43.81% of the total horizontal displacement. The increment of tunnel convergence is the largest in the excavation stage of the foundation pit, accounting for 55.26% of the total tunnel convergence. It is suggested that the deformation control measures at different construction stages should be formulated according to the development law of tunnel deformation in similar projects, so that the deformation of the adjacent tunnels can be in a safe and controllable range.
- construction of foundation pit,
- operating tunnel,
- construction of envelope,
- excavation,
- whole process analysis

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[1]	胡海英, 张玉成, 杨光华, 等. 基坑开挖对既有地铁隧道影响的实测及数值分析[J]. 岩土工程学报, 2014, 36(增刊2): 431-439. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2014S2077.htm HU Hai-ying, ZHANG Yun-cheng, YANG Guang-hua, et al. Measurement and numerical analysis of effect of excavation of foundation pits on metro tunnels[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(S2): 431-439. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2014S2077.htm
[2]	魏纲, 厉京, 宣海力, 等. 大型深基坑开挖对旁边地铁盾构隧道影响的实测分析[J]. 铁道科学与工程学报, 2018, 15(3): 718-726. doi: 10.3969/j.issn.1672-7029.2018.03.023 WEI Gang, LI Jing, XUAN Hai-li, et al. Monitoring data analysis on the influence of large deep foundation pit excavation on nearby metro shield tunnel[J]. Journal of Railway Science and Engineering, 2018, 15(3): 718-726. (in Chinese) doi: 10.3969/j.issn.1672-7029.2018.03.023
[3]	邵华, 王蓉. 基坑开挖施工对邻近地铁影响的实测分析[J]. 地下空间与工程学报, 2011, 7(增刊1): 1403-1408. https://www.cnki.com.cn/Article/CJFDTOTAL-BASE2011S1025.htm SHAO Hua, WANG Rong. Monitoring data analysis on influence of operating metro tunnel by nearly excavation construction[J]. Chinese Journal of Underground Space and Engineering, 2011, 7(S1): 1403-1408. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-BASE2011S1025.htm
[4]	林平, 夏汉庸, 郑云文. 基坑开挖引起的隧道变形事故处理效果分析[J]. 西部探矿工程, 2014, 26(11): 159-163. https://www.cnki.com.cn/Article/CJFDTOTAL-XBTK201411052.htm LIN Ping, XIA Han-yong, ZHENG Yun-wen. Analysis of tunnel deformation accident caused by foundation pit excavation[J]. West-china Exploration Engineering, 2014, 26(11): 159-163. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XBTK201411052.htm
[5]	郑刚, 刘庆晨, 邓旭, 等. 基坑开挖对下卧运营地铁既有箱体影响的实测及分析[J]. 岩土力学, 2012, 33(4): 1109-1116, 1140. doi: 10.3969/j.issn.1000-7598.2012.04.022 ZHENG Gang, LIU Qing-chen, DENG Xu, et al. Field measurement and analysis of effect of excavation on existing tunnel boxes of underlying metro tunnel in operating[J]. Rock and Soil Mechanics, 2012, 33(4): 1109-1116, 1140. (in Chinese) doi: 10.3969/j.issn.1000-7598.2012.04.022
[6]	鲁嘉, 姜天鹤, 胡康虎, 等. 大深度地下连续墙施工对周边环境变形的影响[J]. 建筑科学, 2014, 30(3): 101-106. https://www.cnki.com.cn/Article/CJFDTOTAL-JZKX201403021.htm LU Jia, JIANG Tian-he, HU Kang-hu, et al. Effect on environmental deformation due to deep diaphragm construction[J]. Building Science, 2014, 30(3): 101-106. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JZKX201403021.htm
[7]	POH T Y, WONG I H. Effects of construction of diaphragm wall panels on adjacent ground: Field trial[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2014, 124(8): 749-756.
[8]	LEI G H, SUN H S, NG C W W. An approximate analytical solution for calculating ground surface settlements due to diaphragm walling[J]. Computers and Geotechnics, 2014, 61(3): 108-115.
[9]	王卫东, 陈永才, 吴国明. TRD水泥土搅拌墙施工环境影响分析及微变形控制措施[J]. 岩土工程学报, 2015, 37(增刊1): 1-5. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2015S1002.htm WANG Wei-dong, CHEN Yong-cai, WU Guo-ming. Impact analysis and macro-deformation control measures of TRD construction cement-soil mixing walls[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(S1): 1-5. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2015S1002.htm
[10]	SHI J W, NG C W W, CHEN Y H. Three-dimensional numerical parametric study of the influence of basement excavation on existing tunnel[J]. Computers and Geotechnics, 2015, 63: 146-158.
[11]	SHI C H, CAO C Y, LEI M F, et al. Effects of lateral unloading on the mechanical and deformation performance of shield tunnel segment joints[J]. Tunneling and Underground Space Technology, 2016, 51: 175-188.
[12]	郑刚, 杜一鸣, 刁钰, 等. 基坑开挖引起邻近既有隧道变形的影响区研究[J]. 岩土工程学报, 2016, 38(4): 599-612. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201604004.htm ZHENG Gang, DU Yi-ming, DIAO Yu, et al. Influenced zones for deformation of existing tunnels adjacent to excavations[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(4): 599-612. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201604004.htm
[13]	沈雯, 沈蓉, 孙廉威. 超深基坑分区开挖对侧方地铁影响的实测分析[J]. 地下空间与工程学报, 2019, 15(增刊1): 354-360. https://www.cnki.com.cn/Article/CJFDTOTAL-BASE2019S1051.htm SHEN Wen, SHEN Rong, SUN Lian-wei. Field monitoring and analysis on the influence of deep excavation on adjacent metro[J]. Chinese Journal of Underground Space and Engineering, 2019, 15(S1): 354-360. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-BASE2019S1051.htm
[14]	ZHANG D M, XIE X C, LI Z L, et al. Simplified analysis method for predicting the influence of deep excavation on existing tunnels[J]. Computers and Geotechnics, 2020, 121.
[15]	文新伦. 紧邻地铁隧道的三轴搅拌桩施工参数选择与应用[J]. 建筑施工, 2010, 32(4): 316-318. https://www.cnki.com.cn/Article/CJFDTOTAL-JZSG201004020.htm WEN Xin-lun. Selection and application of construction parameter of triaxial mixing pile close to metro tunnel[J]. Building Construction, 2010, 32(4): 316-318. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JZSG201004020.htm
[16]	朱蕾. SMW工法水泥土搅拌桩施工期间相邻隧道的变形监测[J]. 铁道建筑, 2007(2): 46-47. https://www.cnki.com.cn/Article/CJFDTOTAL-TDJZ200702017.htm ZHU Lei. Monitoring the deformation of adjacent tunnels during the construction of SMW cement-soil mixing pile[J]. Railway Engineering, 2007(2): 46-47. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-TDJZ200702017.htm
[17]	王占生, 潘皇宋, 庄群虎, 等. 基坑围护SMW工法桩施工对下卧盾构隧道变形影响分析[J]. 岩土工程学报, 2019, 41(增刊1): 53-56. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2019S1015.htm WANG Zhan-sheng, PAN Huang-song, ZHUANG Qun-hu, et al. Impact of pit supporting SMW pile construction on underneath shield tunnel deformation[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S1): 53-56. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2019S1015.htm
[18]	况龙川. 深基坑施工对地铁隧道的影响[J]. 岩土工程学报, 2000, 22(3): 284-288. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC200003003.htm KUANG Long-chuan. Influence of construction of deep foundation pit on tunnels of metro[J]. Chinese Journal of Geotechnical Engineering, 2000, 22(3): 284-288. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC200003003.htm
[19]	CHEN R P, MENG F Y, LI Z C, et al. Investigation of response of metro tunnels due to adjacent large excavation and protective measures in soft soils[J]. Tunnelling and Underground Space Technology, 2016, 58: 224-235.
[20]	王立峰, 庞晋, 徐云福, 等. 基坑开挖对近邻运营地铁隧道影响规律研究[J]. 岩土力学, 2016, 37(7): 2004-2010. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201607022.htm WANG Li-feng, PANG Jin, XU Yun-fu, et al. Influence of foundation pit excavation on adjacent metro tunnels[J]. Rock and Soil Mechanics, 2016, 37(7): 2004-2010. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201607022.htm
[21]	LIU B, ZHANG D W, YANG C, et al. Long-term performance of metro tunnels induced by adjacent large deep excavation and protective measures in Nanjing silty clay[J]. Tunnelling and Underground Space Technology, 2020, 95.
[22]	SHI J W, FU Z Z, GUO W L. Investigation of geometric effects on three-dimensional tunnel deformation mechanisms due to basement excavation[J]. Computers and Geotechnics, 2019, 106: 108-116.
[23]	丁智, 张霄, 金杰克, 等. 基坑全过程开挖及邻近地铁隧道变形实测分析[J]. 岩土力学, 2019, 40(增刊1): 415-423. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX2019S1063.htm DING Zhi, ZHANG Xiao, JIN Jie-ke, et al. Measurement analysis on whole excavation of foundation pit and deformation of adjacent metro tunnel[J]. Rock and Soil Mechanics, 2019, 40(S1): 415-423. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX2019S1063.htm

[1]	AI Zhi-yong, HU Ya-dong, ZENG Wen-ze. Axisymmetric consolidation of multi-layered foundation with anisotropic permeability and compressible fluid due to well point sink[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 501-505.
[2]	AI Zhi-yong, ZENG Wen-ze. Axisymmetric Biot's consolidation of multi-layered soils with anisotropic permeability[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(2): 242.
[3]	AI Zhiyong, WU Chao. Analysis of pumping in saturated multi-layered soil by using displacement function method[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(5): 681-685.
[4]	LI Jie, ZHANG Xuemin, DUN Zhilin, GAO Xuebing. Displacement function method of space problem for transversely isotropic foundation[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(1): 137-142.
[5]	ZHU Xiangrong, DU Qinwen, WANG Wenjun. Solutions for axisymmetric problems of non-homogeneous subgrade on rock[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(4): 383-387.
[6]	LI Peihao, ZHU Xiangrong. Analytic solution of non-axisymmetric problems in transversely isotropic elastic half-space[J]. Chinese Journal of Geotechnical Engineering, 2004, 26(3): 331-334.
[7]	CHEN Shengli, ZHANG Jianmin. An analysis of axisymmetric consolidation for transversely isotropic saturated soils[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(1): 26-30.
[8]	Hu Yayuan, Wang Lizhong, Chen Yunmin, Wu Shiming. The theoretical solution of two dimensional biot’s consolidation of layered soils[J]. Chinese Journal of Geotechnical Engineering, 1998, 20(5): 20-24.
[9]	Kong Lingwei, Yuan Jianxin. Study on surface contact stress and settlement properties during dynamic consolidation[J]. Chinese Journal of Geotechnical Engineering, 1998, 20(2): 86-92.
[10]	Jin Bo, Li Zhibiao, Gu Yaozhang. Settlement Analysis of Single Pile in Layered Soil[J]. Chinese Journal of Geotechnical Engineering, 1997, 19(5): 37-44.