›› 2016, Vol. 37 ›› Issue (8): 2271-2278.doi: 10.16285/j.rsm.2016.08.019

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Analysis of influence of surface surcharge on subway shield tunnel under

ZHANG Ming-gao1, ZHOU Shun-hua1, HUANG Da-wei1, WANG Xiu-zhi2, LIU Hong-bo2   

  1. 1. Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804, China; 2. The Technical Center of Shanghai Shentong Metro Group Co., Ltd., Shanghai 201103, China
  • Received:2016-01-27 Online:2016-08-11 Published:2018-06-09
  • Supported by:

    This work was supported by the Science and Technology Program of Science and Technology Commission of Shanghai Municipality(13231200200).

PDF (Chinese)

1135

Abstract: To investigate tunnel vertical earth pressure caused by surface surcharge, a finite element model is established based on the measured results of tunnel structure deformation and earth pressure of indoor model test. The developed model is used to analyze the influence of the compressibility of soil layers acrossed by tunnel and soil layers overlaying on tunnel on tunnel structure deformation and surrounding soil pressure under surface surcharge. The results show, the compressibility of soil acrossed by tunnel is smaller, the vertical earth pressure on the tunnel caused by surface surcharge is greater, the corresponding tunnel lateral earth pressure is smaller, which is more likely to cause lateral elliptical deformation in the tunnel structure. The lower the compressibility of tunnel overlaying soil is, the lower the surface surcharge-induced vertical earth pressure on the tunnel is, the smaller the deformation of tunnel structure is. The vertical earth pressure of the tunnel caused by surface pile soil(surcharge) is greater than that calculated by the theory of soil column. Thesis results can provide some references for the design and operational phase control of subway shield tunnel in soft clay.

Key words: surface surcharge, model test, numerical simulation, convergence deformation, earth pressure

CLC Number: 

  • TU 475

[1] ZOU Wei-lie, FAN Ke-wei, ZHANG Pan, HAN Zhong, . Analysis of lateral pressures on expansive soil retaining wall with expanded polystyrene geofoam inclusions and influence factors [J]. Rock and Soil Mechanics, 2023, 44(9): 2537-2544.
[2] LIU Xin, SHEN Yu-peng, LIU Zhi-jian, WANG Bing-lu, LIU Yue, HAN Yun-xi. Model test on the influence of groundwater seepage velocity on formation of frozen wall in subway cross passage [J]. Rock and Soil Mechanics, 2023, 44(9): 2667-2678.
[3] QIAO Ya-fei, , YAN Kai, , ZHAO Teng-teng, DING Wen-qi, . Characteristics and mechanism of soil heave at the bottom of ultra-deep circular shafts in soft soil areas [J]. Rock and Soil Mechanics, 2023, 44(9): 2707-2716.
[4] XIE Kang, SU Qian, CHEN Xiao-bin, LIU Bao, WANG Wu-bin, WANG Xun, DENG Zhi-xing, . Element model test on polyurethane crushed stone waterproof bonding layer of ballastless track [J]. Rock and Soil Mechanics, 2023, 44(8): 2308-2317.
[5] LU Qin-wu, GUAN Zhen-chang, LIN Lin, WU Shu-jing, SONG De-jie. Lining- tratum interaction mechanism of mountain tunnel based on static pushover model test [J]. Rock and Soil Mechanics, 2023, 44(8): 2318-2326.
[6] ZHAO Jin-qiao, DING Xuan-ming, LIU Han-long, OU Qiang, JIANG Chun-yong, . Laboratory experiment study on response of vibroflotation compaction of coral sand [J]. Rock and Soil Mechanics, 2023, 44(8): 2327-2336.
[7] ZHANG Kun-yong, ZHANG Meng, SUN Bin, LI Fu-dong, JIAN Yong-zhou, . A calculation method for deformation of diaphragm wall of narrow deep foundation pit in soft soil considering spatio-temporal effect [J]. Rock and Soil Mechanics, 2023, 44(8): 2389-2399.
[8] ZHANG Yuan-sheng, LEI Yun-chao, QIANG Xiao-jun, WU Dong-dong, WANG Dong-po, WANG Ji-hua, . Centrifugal model test of slope reinforced by multi-row micro-pile frame structure [J]. Rock and Soil Mechanics, 2023, 44(7): 1983-1994.
[9] YIN Xin-sheng, SHU Ying, LIANG Lu-ju, ZHANG Shi-min, . Stability analysis of shield excavation surface in saturated silt strata considering seepage [J]. Rock and Soil Mechanics, 2023, 44(7): 2005-2016.
[10] ZHANG Chang-guang, GUAN Gang-hui, LI Hai-xiang, FAN Jia-shen, SHI Jing, . Seismic active earth pressure on a retaining wall in unsaturated soils with cracks for changing water table [J]. Rock and Soil Mechanics, 2023, 44(6): 1575-1584.
[11] JI Yu-kun, WANG Qin-ke, ZHAO Guo-liang, ZHANG Jian, MA Jian-lin, . Model test and numerical simulation of vertical bearing capacity and deformation characteristics of rock-socketed uplift pile in sloped ground [J]. Rock and Soil Mechanics, 2023, 44(6): 1604-1614.
[12] ZHANG Xiao-bo, ZHANG Diao, YAO Chi, YANG Jian-hua, JIANG Shui-hua, RONG Yao. Determination method and parameter analysis of reasonable spacing of pipe-shed support in tunnel portal section considering micro-arch effect [J]. Rock and Soil Mechanics, 2023, 44(6): 1625-1635.
[13] ZHANG Yu, LIANG Hao, LIN Liang, ZHOU You, ZHAO Qing-song, . Experimental study on the mechanical response of buried pipelines under different subsidence patterns [J]. Rock and Soil Mechanics, 2023, 44(6): 1645-1656.
[14] MA Peng-jie, RUI Rui, CAO Xian-zhen, XIA Rong-ji, WANG Xi, DING Rui-heng, SUN Tian-jian, . Model tests of micropile-reinforced soil slope with long and gently inclined fissures [J]. Rock and Soil Mechanics, 2023, 44(6): 1695-1707.
[15] SUN Yan-xiao, LIU Song-yu, TONG Li-yuan, WANG Jun, CUI Jia, LI Shi-long, LI Min, . Optimization of confined aquifer dewatering for cut and cover tunnel in Yangtze River floodplain [J]. Rock and Soil Mechanics, 2023, 44(6): 1800-1810.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] XU Jin-ming, QIANG Pei, ZHANG Peng-fei. Texture analysis of photographs of silty clay[J]. , 2009, 30(10): 2903 -2907 .
[2] LIANG Gui-lan, XU Wei-ya, TAN Xiao-long. Application of extension theory based on entropy weight to rock quality evaluation[J]. , 2010, 31(2): 535 -540 .
[3] MA Wen-tao. Forecasting slope displacements based on grey least square support vector machines[J]. , 2010, 31(5): 1670 -1674 .
[4] YU Lin-lin，XU Xue-yan，QIU Ming-guo, LI Peng-fei，YAN Zi-li. Influnce of freeze-thaw on shear strength properties of saturated silty clay[J]. , 2010, 31(8): 2448 -2452 .
[5] WANG Wei, LIU Bi-deng, ZHOU Zheng-hua, WANG Yu-shi, ZHAO Ji-sheng. Equivalent linear method considering frequency dependent stiffness and damping[J]. , 2010, 31(12): 3928 -3933 .
[6] WANG Hai-bo，XU Ming，SONG Er-xiang. A small strain constitutive model based on hardening soil model[J]. , 2011, 32(1): 39 -43 .
[7] CAO Guang-xu, SONG Er-xiang, XU Ming. Simplified calculation methods of post-construction settlement of high-fill foundation in mountain airport[J]. , 2011, 32(S1): 1 -5 .
[8] LIU Hua-li , ZHU Da-yong , QIAN Qi-hu , LI Hong-wei. Analysis of three-dimensional end effects of slopes[J]. , 2011, 32(6): 1905 -1909 .
[9] LIU Nian-ping , WANG Hong-tu , YUAN Zhi-gang , LIU Jing-cheng. Fisher discriminant analysis model of sand liquefaction and its application[J]. , 2012, 33(2): 554 -557 .
[10] WANG Wei-dong , LI Yong-hui , WU Jiang-bin . Pile-soil interface shear model of super long bored pile and its FEM simulation[J]. , 2012, 33(12): 3818 -3824 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd