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Frontiers of Structural and Civil Engineering

Front. Struct. Civ. Eng.    2009, Vol. 3 Issue (3) : 299-304
Research articles
Centrifuge model test and field measurement analysis for foundation pit with confined water
Chunlin DING , Xiaohong MENG ,
Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China;
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Abstract The similarity law of centrifuge test was developed for the seepage field and stress field of a foundation pit with confined water by analyzing control equations, and a similarity index and a similarity coefficient of centrifuge test were obtained. Based on the deep foundation pit of the Huangxing Road Station of the Shanghai metro line M8, the deformation stability of the pit was tested. Finally, a comparative study was conducted on the test results of the pit deformation and the field measurement results. Comparison results show that the pit deformation regularity of the test is basically identical with that of the field measurement, and the difference in pit deformation between the test and the field measurement is within 50%. The centrifuge model test can effectively simulate the displacement response of the ground and retaining structure during dewatering and excavation for the pit with confined water, which provides a reliable basis for the design and construction of the pit with confined water.
Keywords foundation pit with confined water      centrifuge model test      seepage-stress coupling field      similarity relation      field measurement      deformation      
Issue Date: 05 September 2009
 Cite this article:   
Chunlin DING,Xiaohong MENG. Centrifuge model test and field measurement analysis for foundation pit with confined water[J]. Front. Struct. Civ. Eng., 2009, 3(3): 299-304.
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Articles by authors
Chunlin DING
Xiaohong MENG
Wang Jun, Liu Shizuo. Analysis of accident causedby dewatering in deep foundation pit and measure of prevention &cure. Jiangshu Architecture, 1998, (4): 21―23 (in Chinese)
Zhou Jian, Liu Ning. The lastest application ofcentrifuge model test. Shanghai Geology, 2002, (1): 52―56 (in Chinese)
Qian Jiahuan, Yin Zongze. Soil Engineering Principleand Calculation. Bejing: China WaterPower Press, 1996 (in Chinese)
Xue Yuqun. Hydraulics of Groundwater. Bejing: The Geological Publishing House, 1986 (in Chinese)
Shanghai Construction Council. Code for Design of Excavation Engineering. Shanghai: Shanghai ConstructionCouncil, 1997 (in Chinese)
Ding Chunlin, Zhou Shunhua, Zhang Shide. Certrifuge model experimental study on influence factorsof deformation stability for confined water foundation pit. Journal of Tongji University (Natural Science), 2005, 33(12): 1586―1591 (in Chinese)
Ding Chunlin, Gong Quanmei, Meng Xiaohong.A Study on Treatment Technology of Confined Water forDeep Foundation Pit of Metro Station During Excavation. Shanghai: School of Traffic andTransportation Engineering, TongjiUniversity, 2004 (in Chinese)
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