Please wait a minute...
浙江大学学报(工学版)
JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)  2018, Vol. 52 Issue (2): 317-324    DOI: 10.3785/j.issn.1008-973X.2018.02.014
Civil and Traffic Engineering     
Ground surface deformation induced by quasi-rectangle EPB shield tunneling
ZHANG Xue-hui1,2, CHEN Ji-xiang1,2, BAI Yun1,2, CHEN Ang1,2, HUANG De-zhong3
1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;
2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China;
3. Shanghai Tunnel Engineering Limited Company, Shanghai 200232, China
Download:   PDF(2787KB) HTML
Export: BibTeX | EndNote (RIS)      

Abstract  

The disturbance control of quasi-rectangle shield tunneling was analyzed. The coupling effects of the following four factors-the horizontal excess pressure at the excavation face, the friction between the shield skin and soil, the grouting force outside the tailskin and ground loss were analyzed based on the Mindlin solution. The ground surface deformation was calculated with numerical integration method and superposition. (1) Superposition of these four factors causes large ground surface settlement near the tunneling area, with a convergence settlement about 33 mm, and significant settlement occurs within 10 m ahead of the face; (2) Grouting force causes significant heave and can partially offset the settlement induced by ground loss, thus appropriate grouting can assist settlement control;(3) Of all the four factors, the ground deformation induced by horizontal excess pressure and skin friction is quite small, if compared with the other two factors. The theoretic results accorded with on-site monitoring data, which assists disturbance control of future quasi-rectangle shield tunneling.

Received: 20 December 2016      Published: 09 March 2018
CLC:  TU443  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Cite this article:

ZHANG Xue-hui, CHEN Ji-xiang, BAI Yun, CHEN Ang, HUANG De-zhong. Ground surface deformation induced by quasi-rectangle EPB shield tunneling. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2018, 52(2): 317-324.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2018.02.014     OR     http://www.zjujournals.com/eng/Y2018/V52/I2/317


类矩形土压平衡盾构施工引起的地表变形

针对类矩形盾构施工的扰动控制问题，基于弹性力学Mindlin解，考虑刀盘正面附加推力、壳体与土体之间摩阻力、同步注浆压力以及土体损失4种因素的共同作用，采用数值积分法和叠加原理对地表变形进行计算分析.结果表明：4种因素共同作用下类矩形盾构掘进地表相当范围内表现为沉降，最大收敛沉降约为33 mm，开挖面前方的沉降影响主要集中在前方10 m范围；同步注浆压力产生的地表隆起可以部分抵消土体损失引发的沉降，因而合理的同步注浆有利于沉降控制；4类因素中，正面附加推力和盾壳摩阻力产生的地表变形很小.理论结果与实测数据基本吻合，可为后期类矩形盾构隧道施工的扰动控制提供理论参考.

[1] KASHIMA Y, KONDO N, INOUE M. Development and application of the DPLEX shield method:results of experiments using shield and segment models and application of the method in tunnel construction[J]. Tunnelling and Underground Space Technology, 1996, 11(1):45-50.
[2] KONDA T. Shield tunneling method[J]. Civil Engineering, Japan Society of Civil Engineers, 2001, 39:23-27.
[3] 盛佳韧,叶冠林,桥本正,等. 双圆盾构盾尾注浆对地层沉降的影响分析[J]. 地下空间与工程学报,2014,01:201-205. SHENG Jia-ren, YE Guan-lin, Tadashi H, et al. Influence of backfill grouting on ground settlement in DOT shield[J]. Chinese Journal of Underground Space & Engineering, 2014, 10(1):201-205.
[4] 周文波,顾春华. 双圆盾构施工技术[J]. 现代隧道技术,2004,04:22-32+44. ZHOU Wen-bo, GU Chun-hua. Construction technique of DOT shield[J]. Modern Tunnelling Technology, 2004, 04:22-32+44.
[5] 张冬梅,黄宏伟, 林平,等. 地铁盾构推进引起周围土体附加应力分析[J]. 地下空间, 1999, 19(5):379-382. ZHANG DONG-mei, HUANG Hong-wei, LIN Ping, et al. Additional stress analysis of subway shieldtunneling[J].Underground Space, 1999, 19(5):379-382.
[6] 孙统立,张庆贺,韦良文,等. 双圆盾构掘进施工扰动土体附加应力分析[J]. 岩土力学. 2008, 29(8):2246-2251. SUN Tong-li, ZHANG Qing-he, WEI Liang-wen, et al. Analysis of additional stresses of soil disturbance induced by propulsion of double-O-tube shield[J]. Rock & Soil Mechanics, 2008, 29(8):2246-2251.
[7] 魏纲,张世民,齐静静,等. 盾构隧道施工引起的地面变形计算方法研究[J]. 岩石力学与工程学报, 2006(增1):3317-3323. WEI G, ZHANG S, QI J, et al. Study on calculation method of ground deformation induced by shield tunnel construction[J]. Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering, 2006, 25(supp.1):3317-3323.
[8] 林存刚,刘干斌,梁荣柱,等. 隧道坡度对盾构掘进引起地面隆陷的影响[J]. 岩土工程学报. 2014(7):1203-1212. LIN Cun-gang, LIU Gan-bing, LIANG Rong-zhu, et al. Influences of tunnel slope on shield tunnelling-induced heave and subsidence of ground surface[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(7):1203-1212.
[9] 傅德明,张冠军. 我国矩形掘进机隧道施工技术发展与应用[J]. 上海建设科技. 2008, 02:4-5. FU De-ming, ZHANG Guan-jun. Technical development and application of rectangular shieldtunnelling in china[J]. Shanghai Construction Science & Technology, 2008, 02:4-5.
[10] 郭昊. 矩形顶管机下穿郑州市中州大道工程简介[J]. 中国市政工程. 2013, 05:53-55. GUO Hao. Brief Introduction of Zhengzhou Zhongzhon Ave.underpass project using rectangular pipe jacking machine[J]. China Municipal Engineering, 2013, 05:53-55.
[11] 周顺华,廖全燕,刘建国,等.矩形顶管隧道顶进过程的地层损失[J]. 岩石力学与工程学报, 2001, 20(3):342-345. ZHOU Shun-hua, LIAO Quan-yan, LIU Jian-guo, et al. Stratum loss during pipe jacking of rectangle tunnel[J]. Chinese Journal of Rock Mechanics & Engineering, 2001, 20(3):342-345.
[12] 邓长茂, 彭基敏, 沈国红. 软土地区矩形顶管施工地表变形控制措施探讨[J]. 地下空间与工程学报, 2016, 12(4):1002-1007. DENG Chang-mao,PENG Jim-in,SHEN Guo-hong. Discussion on control methods of ground surface settlement caused by rectangular pipe jacking construction in soft soils[J]. Chinese Journal of Underground Space & Engineering, 2016, 12(4):1002-1007.
[13] 王洪新. 土压平衡盾构刀盘挤土效应及刀盘开口率对盾构正面接触压力影响[J]. 土木工程学报. 2009(07):113-118. WANG Hong-xin. Effect of cutterhead compressing the front soil and influence of head aperture ratio on contact pressure of EPB shield to the front soil[J]. Tumu Gongcheng Xuebao/China Civil Engineering Journal, 2009, 42(7):113-118.
[14] 杨敏,赵锡宏. 分层土中的单桩分析法[J]. 同济大学学报:自然科学版, 1992,04:421-428. YANG Min, ZHAO Xi-hong. An approach for a single pile in layered soil[J]. Journal of Tongji University:Natural Science, 1992, 04:421-428.
[15] 梁荣柱,夏唐代,林存刚,等. 盾构推进引起地表变形及深层土体水平位移分析[J]. 岩石力学与工程学报. 2015, 34(3):583-593. LIANG Rong-zhu, XIA Tan-dai, LIN Cun-gang, et al. Analysis of ground surface displacement and horizontal movement of deep soils induced by shield advancing[J]. Yanshilixue Yu Gongcheng Xuebao/chinese Journal of Rock Mechanics & Engineering,2015, 34(3):583-593.
[16] 张乾青,李连祥,李术才,等. 成层土中单桩受力性状简化算法[J]. 岩石力学与工程学报. 2012, 31(z1):3390-3394. ZHANG Qian-qing, LI Lian-xiang, LI Shu-cai, et al. Simplified analytical method for response prediction of single pile embeded into layered soils[J]. Yanshilixue Yu Gongcheng Xuebao/chinese Journal of Rock Mechanics & Engineering, 2012, 31:3390-3394.
[17] POTYONDY J G. Skin friction between various soils and construction materials[J]. Geotechnique,1961, 11(4):339-353.
[18] 吕虎, 张庆贺. 地铁双圆盾构施工引起的地面沉降模型[J]. 建井技术,2006, 27(1):32-34. LV Hu, ZHANG Qing-he. Analysis model of surface settlement induced by subway double-O-tube shield[J]. Mine Construction Technology, 2006, 27(1):32-34.
[19] MINDLIN R D. Force at a point in the interior of a semi-infinite solid[J]. Physics,1936, 7(5):195-201.
[20] LOGANATHAN N POULOS H G. Analytical prediction for tunneling-induced ground movement in clays[J]. Journal of Geotechnical and Geoenvironmental Engineering, 1998, 124(9):846-856.
[21] 魏纲. 盾构隧道施工引起的土体损失率取值及分布研究[J]. 岩土工程学报, 2011, 28(9):0-0. GANGW E I. Selection and distribution of ground loss ratio induced by shield tunnel construction[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(9):1354-1361.
[1] REN Song, OUYANG Xun, WU Jian-xun, CHEN Fan, WANG Liang, CHEN Jie. Elastic-swelling analytical model of anhydrite rock considering time-dependent effect[J]. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2018, 52(5): 896-905.
[2] GUO Kang-shi, ZHUANG Yan-feng, DUAN Wei. Experimental study on micro-mechanism of electro-osmosis using montmorillonite[J]. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(12): 2373-2382.
[3] KE Han, DONG Ding, CHEN Yun-min, GUO Cheng, FENG Shi-jin. Nonlinear elastic model for municipal solid waste considering dilatancy effect[J]. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(11): 2158-2164.
[4] ZOU Wei-lie, HE Yang, ZHANG Feng-De, WANG Dong-xing, WANG Shuai, WANG Yuan-ming. Experimental study on unsaturated permeability characteristics of solidified sediment stabilized with cement[J]. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(11): 2182-2188.