Experimental study on ground settlement caused by dynamic shield tunneling

doi:10.16265/j.cnki.issn1003-3033.2017.11.020

Abstract

Abstract: For the sake of predicting the ground settlement due to dynamic shield tunneling exactly, an independently developed test device was used to simulate the dynamic construction of shield tunnel under different ground loss rates. The results show that with different ground loss rate, shield excavation face passing the monitoring cross section will cause sand ground settlement increase rapidly,no matter what the ground loss rate may be, and its growth will increase with the increasing of ground loss rate, and that when shield excavation face passes the monitoring cross section by about two times of tunnel diameter, sand ground settlement will be stabilized with advancing of shield tunneling, and the stable sand ground settlement groove width decreases with the increasing of ground loss rate.

Key words: shield tunnel, laboratory model test, sand ground, ground loss rate, settlement curve, settlement groove width

CLC Number:

X948

ZHU Fengbin, MIAO Linchang, LIN Shuixian. Experimental study on ground settlement caused by dynamic shield tunneling[J]. China Safety Science Journal, 2017, 27(11): 116-120.

References

[1] KIMURA K, MAIR R J. Centrifugal testing of model tunnels in soft clay[C]. Proceedings of 10^th International Conference on Soil Mechanics & Foundation Engineering, Stockholm, 1981: 319-322.
[2] ROWE R K, LEE K M. An evaluation of simplified techniques for estimating three-dimensional undrained ground movements due to tunneling in soft soils[J]. Canadian Geotechnical Journal, 1992,29(1): 39-52.
[3] GRANT R J, TAYLOR R N. Centrifuge modeling of ground movements due to tunneling in layered ground[C].Proceedings of International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, 1996: 507-512.
[4] IMAMURA S, HAGIWARA T, MITO K, et al. Settlement through above a model shield observed in a centrifuge[C].Proceedings of Centrifuge Tokyo, 1998: 713-719.
[5] 马险峰, 王俊淞, 李削云. 盾构隧道引起地层损失和地表沉降的离心模型试验研究[J]. 岩土工程学报, 2012,34(5): 942-947.
MA Xianfeng, WANG Junsong, LI Xiaoyun. Centrifuge modeling of ground loss and settlement caused by shield tunneling in soft ground[J]. Chinese Journal of Geotechnical Engineering, 2012,34(5): 942-947.
[6] 周小文, 濮家骝. 砂土中隧洞开挖引起的地面沉降试验研究[J]. 岩土力学, 2002,23(5): 559-563.
ZHOU Xiaowen, PU Jialiu. Experimental study on ground settlement induced by tunneling in sandy soil[J]. Rock and Soil Mechanics, 2002,23(5): 559-563.
[7] 姚燕明, 杨龙才, 刘建国. 地铁车站施工对地面沉降影响的试验分析[J]. 城市轨道交通研究, 2002,5(1): 70-73.
YAO Yanming, YANG Longcai, LIU Jianguo. Experimental analysis of the settlement of the ground during the construction of a subway station[J]. Urban Mass Transit, 2002,5(1): 70-73.
[8] POTTS D M. Behaviors of lined and unlined tunnels in sands[D]. Cambridge:Cambridge University, 1976.
[9] CORDING E J, HANSMIRE W H, MACPHERSON H H. Displacement around tunnels in soils[R]. Reports Prepared for Department of Transportation, Urbana, University of Illinois, 1976.
[10] 林刚, 何川. 连拱隧道施工全过程地层沉降三维数值模拟[J]. 公路, 2004(3): 136-140.
LIN Gang, HE Chuan. 3D Finite element method numerical simulation analysis of stratum settlement of twin tunnel during whole construction process[J]. Highway, 2004(3): 136-140.
[11] 朱逢斌, 缪林昌, 林水仙. 砂土中盾构动态施工室内模型试验可行性研究[J]. 工业建筑, 2016,46(4): 88-92.
ZHU Fengbin, MIAO Linchang, LIN Shuixian. Feasibility study of the laboratory model test simulating the dynamic shield tunneling in sand soil[J]. Modern Tunneling Technology, Industrial Construction, 2016,46(4): 88-92.
[12] 朱逢斌, 陈甦, 孙雷江. 自制砂雨装置填砂装样质量分析[J]. 地下空间与工程学报, 2013,9(增2): 2 076-2 092.
ZHU Fengbin, CHEN Su, SUN Leijiang. Quality analysis of sand filling by the self-made pluviation device[J].Chinese Journal of Underground Space and Engineering, 2013,9(S2): 2 076-2 092.
[13] 王占生, 王梦恕. 盾构施工对周围建筑物的安全影响及处理措施[J]. 中国安全科学学报, 2002,12(2): 45-50.
WANG Zhansheng, WANG Mengshu. Effects of shield-driven tunneling on the safety of adjacent building and its countermeasures[J].China Safety Science Journal, 2002,12(2): 45-50.
[14] O'REILLY M P, NEW B M. Settlements above tunnels in the United Kingdom: their magnitude and prediction[C].Proceedings of Tunneling 82, The Institution of Mining and Metallurgy, 1982: 55-64.