Numerical Evaluation of Land Subsidence Induced by Dewatering in Deep Foundation Pit

doi:10.1007/s12204-013-1394-1

上海交通大学学报（英文版） ›› 2013, Vol. 18 ›› Issue (3): 278-283.doi: 10.1007/s12204-013-1394-1

Numerical Evaluation of Land Subsidence Induced by Dewatering in Deep Foundation Pit

ZHANG Dong-dong (张冬冬), SONG Chun-yu* (宋春雨), CHEN Long-zhu (陈龙珠)

(Institute of Engineering Safety and Disaster Prevention, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

出版日期:2013-06-28 发布日期:2013-08-12
通讯作者: SONG Chun-yu(宋春雨) E-mail:chysong@sjtu.edu.cn

Numerical Evaluation of Land Subsidence Induced by Dewatering in Deep Foundation Pit

ZHANG Dong-dong (张冬冬), SONG Chun-yu* (宋春雨), CHEN Long-zhu (陈龙珠)

(Institute of Engineering Safety and Disaster Prevention, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

Online:2013-06-28 Published:2013-08-12
Contact: SONG Chun-yu(宋春雨) E-mail:chysong@sjtu.edu.cn

摘要/Abstract

摘要： o predict the behavior of land subsidence due to groundwater withdrawal, a 3D numerical model is established. The model takes the confined aquifer and soft deposit of Ningbo into account. According to the pumping test data, changing regulations of groundwater level, and land subsidence during dewatering are analyzed. Comparison between the calculated value and measured value shows that the 3D model simulates the measured value fairly well. The future behavior of land subsidence during dewatering period provides the scientific basis for the construction of deep foundation.

关键词: deep foundation pit, groundwater pumping, 3D seepage, land subsidence

Abstract: o predict the behavior of land subsidence due to groundwater withdrawal, a 3D numerical model is established. The model takes the confined aquifer and soft deposit of Ningbo into account. According to the pumping test data, changing regulations of groundwater level, and land subsidence during dewatering are analyzed. Comparison between the calculated value and measured value shows that the 3D model simulates the measured value fairly well. The future behavior of land subsidence during dewatering period provides the scientific basis for the construction of deep foundation.

Key words: deep foundation pit, groundwater pumping, 3D seepage, land subsidence

中图分类号:

TU 46

ZHANG Dong-dong (张冬冬), SONG Chun-yu* (宋春雨), CHEN Long-zhu (陈龙珠). Numerical Evaluation of Land Subsidence Induced by Dewatering in Deep Foundation Pit[J]. 上海交通大学学报（英文版）, 2013, 18(3): 278-283.

ZHANG Dong-dong (张冬冬), SONG Chun-yu* (宋春雨), CHEN Long-zhu (陈龙珠). Numerical Evaluation of Land Subsidence Induced by Dewatering in Deep Foundation Pit[J]. Journal of shanghai Jiaotong University (Science), 2013, 18(3): 278-283.

参考文献

[1] Holzer T L, Bluntzer R L. Land subsidence near oil and gas fields, Houston, Texas [J]. Ground Water,1985, 22(4): 450-459.
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[3] Chai J C, Shen S L, Zhu H H, et al. Land subsidence due to groundwater drawdown in Shanghai [J]. Geotechnique, 2004, 54: 1-5.
[4] Xu Y S, Shen S L, Hayashi S, et al. Analysis on groundwater withdrawal and land subsidence in Shanghai [J]. Lowland Technology International, 2007, 9(2): 2-7.
[5] Shen S L, Xu Y S. Numerical evaluation of land subsidence induced by groundwater pumping in Shanghai [J]. Canadian Geotechnical Journal, 2011, 48: 1378-1392.
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[7] Sun Rui-rui. Mechanism and solution of seepage failure in foundation pits of soft soil [J]. Shanghai Geology, 2010, 31: 85-88 (in Chinese).
[8] Harada K, Yamanouchi T. Land subsidence in the Saga Plain, Japan, and its analysis by the quasi-threedimensional aquifer model [J]. Geotechnical Engineering, 1983, 14(1): 23-54.
[9] Zhang D D, Zhou J F, Zhang W G, et al. The finite element analysis of the excavation on adjacent buildings based on mohr coulomb model [J]. Advanced Materials Research, 2012, 374-377: 2171-2175.
[10] Zhang Dong-dong. Numerical simulation analysis of surrounding deformation due to dewatering of confined water [J]. Shanghai Geology, 2010, 31: 24-28 (in Chinese).
[11] Giao P H, Ovaskainen E. Preliminary assessment of Hanoi land subsidence with reference to groundwater development [J]. Lowland Technology International, 2000, 2(2): 17-29.
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Numerical Evaluation of Land Subsidence Induced by Dewatering in Deep Foundation Pit

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