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ZHANG Yang-qing, RAN An-lü, WU Chao-jun, CHEN Jin-jian, WANG Jian-hua. Experimental study on permeability properties of soft clay in process of pumping and recharge[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(zk1): 21-25. DOI: 10.11779/CJGE2015S1005
Citation: ZHANG Yang-qing, RAN An-lü, WU Chao-jun, CHEN Jin-jian, WANG Jian-hua. Experimental study on permeability properties of soft clay in process of pumping and recharge[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(zk1): 21-25. DOI: 10.11779/CJGE2015S1005

Experimental study on permeability properties of soft clay in process of pumping and recharge

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  • Received Date: March 25, 2015
  • Published Date: July 24, 2015
  • For controlling the settlement caused by dewatering of deep foundation pits, the method of recharging is usually adopted. But the permeability coefficient of soft clay may change along with the variation of void ratio during the pumping and recharge, and it will affect the results of recharging and deformation characteristics of soils. For studying the permeability characteristics of Shanghai typical soft clay under the effect of pumping and recharge, the pumping and recharge tests were carried out on the soft clay by using the GDS triaxial apparatus. During the tests, the soil stress level is controlled by setting the radial pressure and initial pore pressure. Meanwhile, the process of pumping and recharge is simulated by changing the back pressure. The void ratio and permeability coefficient are obtained by dealing with the experimental results and data. The study shows that the permeability coefficient has a nonlinear relationship and a decreasing trend along with the decrease of void ratio during the pumping. During the recharge, with the increase in void ratio, the permeability coefficient has a decreasing trend due to the blockage effect and is smaller than that at the pumping stage. Meanwhile, the nonlinear relationship between permeability coefficient and void ratio can be fitted using the function of e-lgk.
  • [1]
    栾长青, 阚宏明, 唐益群. 上海地铁九号线宜山路站降水引起的沉降分析[J]. 岩土工程学报, 2010, 24(12): 1961-1968. (LUAN Chang-qing, KAN Hong-ming, TANG Yi-qun. Settlement caused by dewatering at Yishanlu Metro Station in Shanghai[J]. Chinese Journal of Geotechnical Engineering, 2010, 24(12): 1961-1968. (in Chinese))
    [2]
    刘 婧, 陈锦剑, 王建华. 虹桥交通枢纽多级梯次降水流固耦合分析[J]. 岩土工程学报, 2013, 35(增刊1): 210-215. (LIU Jing, CHEN Jin-jian, WANG Jian-hua. Fluid-solid coupling analysis of multi-grade dewatering in Hongqiao transport hub[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(S1): 210-215. (in Chinese))
    [3]
    郑 刚, 曾超峰, 刘 畅, 等. 天津首例基坑工程承压含水层回灌实测研究[J]. 岩土工程学报, 2013, 35(增刊2): 491-495. (ZHEN Gang, ZENG Chao-feng, LIU Chang, et al. Field observation of artificial recharge of confined water in first excavation case in Tianjin[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(S2): 491-495. (in Chinese))
    [4]
    TAVENAS F, JEAN P, LEBLOND P, et al. The permeability of natural soft clays. Part II: permeability characteristics[J]. Canadian Geotechnical Journal, 1983, 20(4): 645-659.
    [5]
    NARASIMHARAJU P S R, PANDIAN N S, NAGARAJ T S. Determination of the coefficient of consolidation from independent measurement of permeability and compressibility[J]. Proceedings of the Institution of Civil Engineers-Geotechnical Engineering, 1997, 125(4): 224-229.
    [6]
    谢康和, 齐 添, 胡安峰, 等. 基于GDS的黏土非线性渗透特性试验研究[J]. 岩土力学, 2008(2): 420-424. (XIE Kang-he, QI Tian, HU An-feng, et al. Experimental study on nonlinear permeability characteristics of Xiaoshan clay[J]. Rock and Soil Mechanics, 2008(2): 420-424. (in Chinese))
    [7]
    张 明, 蒋敏敏, 赵有明. 基于GDS固结仪的吹填淤泥非线性渗透性及参数测定[J]. 岩石力学与工程学报, 2013(3): 625-632. (ZHANG Ming, JIANG Min-min, ZHAO You-ming. Nonlinear permeability and parameter determination for dredged fill based on GDS consolidation apparatus[J]. Chinese Journal of Rock Mechanics and Engineering, 2013(3): 625-632. (in Chinese))
    [8]
    单蓓蓓, 郑西来, 乔振基, 等. 人工回灌过程中含水介质物理堵塞的试验研究[J]. 中国海洋大学学报(自然科学版), 2013, 10: 97-101. (SHAN Bei-bei, ZHENG Xi-lai, QIAO Zhen-ji, et al. Experimental study of aquifer physical clogging during artificial recharge process[J]. Periodical of Ocean University of China, 2013, 10: 97-101. (in Chinese))
    [9]
    张晓婉, 冶雪艳, 杜新强, 等. 人工回灌地下水过程中微生物堵塞对介质渗透性影响的试验[J]. 安全与环境学报, 2014(3): 146-150. (ZHANG Xiao-wan, YE Xue-yan, DU Xin-qiang, et al. Experimental study of the effect of the microbial clogging on the porous media permeability during the artificial recharge[J]. Journal of Safety and Environment, 2014(3): 146-150. (in Chinese))
    [10]
    何满潮, 刘 斌, 姚磊华, 等. 地下热水回灌过程中渗透系数研究[J]. 吉林大学学报 (地球科学版), 2002(4): 374-377. (HE Man-chao, LIU Bin, YAO Lei-hua, et al. Study on hydraulic conductivity during geothermal reinjection[J]. Journal of Jilin University (Earth Science Edition), 2002(4): 374-377. (in Chinese))
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