Strength and Deformation of Silt Foundation Effected by Groundwater Level Fluctuation

Abstract:

Based on the characteristics of frequent ground subsidence events caused by groundwater level fluctuation in coastal cities in China, the effects of groundwater level fluctuation and building load change on the strength and deformation of silt is simulated by laboratory experiments in studying on the quaternary sedimentary silt in Shanghai. It has summarized the law of the strength and deformation of silt foundation and its inherent varying mechanism through these data. The methodology and result of this research, which can be used as a reference for similar engineering and urban ground subsidence prevetion.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 571-576
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.571
• Online since: October 2012
• Authors: Long Zhang, Xue Wen Lei, Qing Shan Meng, Xi Yang
• Keywords: Deformation, Groundwater Level Fluctuation, Silt, Strength

References

[1] Meng Qingshan, Chen Nengyuan, Yang Chao. Research progress review of characters of marine soft clay in underground water fluctuating zone[J]. Yangtze River, 2011,42(4):29-32.

[2] Han Fei, Zhang Tuqiao, Zhang Yiping, Powder soil area caused by underground precipitation soil samples deformation characteristics and the dilatancy[J], Chinese Journal of Geotechnical Engineering, 2002,24(6):753-755.

[3] Li Guohe, Jin Zhidong, Xu Zailiang. A discussion of the correlation between land subsidence and groundwater level variation along the Jinghu high speed railway[J]. Hydrogeology and Engineering Geology, 2008,6:90-94.

[4] Meng Qingshan, Yang Chao, Xu Xiaozu. Analysis of microstructure of soft clay before and after its improvement with dynamic consolidation by drainage[J]. Rock and Soil Mechanics, 2008,29(7):1759-1763.

[5] Xiao Junhua, Liu Jiankun, Pen Li. The Yellow River impact powder soil of density and mechanical properties of moisture content[J]. Rock and Soil Mechanics,2008,29(2):409-415.

[6] Tang Yiqun, Yan Xuexin, Wang Jianxiu. Model test study of influence of high-rise building on ground subsidence[J]. Journal of Tongji University(Natural Science),2007,35(3):320-32.

[7] Ye Weiming, Bai Yun, Jin Qi. Lab experimental study on soil-water characteristics of Shanghai soft clay[J]. Chinese Journal of Geotechnical Engineering, 2006,28(2),260-263.