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Volume 41 Issue 4
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MU Lin-long, WANG Le, HUANG Mao-song, HE Yan-cheng, KANG Jing-wen. Experimental study on influences of leakage of confined water on buoyancy of underground structures[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(4): 769-774. DOI: 10.11779/CJGE201904022
Citation: MU Lin-long, WANG Le, HUANG Mao-song, HE Yan-cheng, KANG Jing-wen. Experimental study on influences of leakage of confined water on buoyancy of underground structures[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(4): 769-774. DOI: 10.11779/CJGE201904022
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Experimental study on influences of leakage of confined water on buoyancy of underground structures

  • 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;
    2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China;
    3. China Southwest Geotechnical Investigation & Design Institute Co., Ltd., Chengdu 610000, China;

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  • Received Date: April 07, 2018
  • Published Date: April 24, 2019
    Graphical Abstract
    • Abstract
  • In order to solve the problem that the prediction of the buoyancy of underground structures in confined aquifer is inaccurate, a series of model tests on the impact of confined aquifer seepage on the buoyancy of underground structures are conducted. Two cases are studied: (1) the vertical seepage in homogeneous soil layer; (2) the vertical seepage of the confined water through overlying aquiclude. The influences of the seepage on the buoyancy of the underground structure under different hydraulic gradients in both cases are investigated. The results show that the pore pressure distribution and the buoyancy of the underground structures are not consistent with those obtained from hydrostatic pressure when the seepage occurs. And they are usually larger than those obtained from hydrostatic pressure. The raising ratio of the pore pressure and buoyancy to the theoretical value based on hydrostatic pressure equals to the vertical hydraulic gradient in case the vertical seepage occurs in homogeneous soil. The raising ratio of the pore pressure and buoyancy to the theoretical value based on hydrostatic pressure is much larger than the hydraulic gradient in case the confined water seeps in the overlying aquiclude, which is obviously different from that in homogenous soil. In the case herein, the raising ratio is about 2 times the hydraulic gradient.
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    • References (20)
  • [1]
    崔岩, 崔京浩, 吴世红. 地下结构浮力模型试验研究[J]. 特种结构, 1999, 16(1): 32-39.
    (CUI Yan, CUI Jing-hao, WU Shi-hong.Model test study of buoyancy on underground structure[J]. Special Structures, 1999, 16(1): 32-39. (in Chinese))
    [2]
    崔红军, 陆士强. 基坑围护结构承受的水压力计算理论的试验验证和分析[J]. 武汉大学学报, 2001, 34(1): 45-48.
    (CUI Hong-jun, LU Shi-qiang.Test verification and analysis of calculation theory of water pressure on bracing construction of foundation pit[J]. Journal of Wuhan University of Hydraulic and Electric Engineering, 2001, 34(1): 45-48. (in Chinese))
    [3]
    VERRUIJT A.Soil mechanics[M]. Delft: Delft University of Technology, Department of Civil Engineering, 2006 .
    [4]
    周朋飞. 城市复杂环境下地下水浮力作用机理试验研究[D].北京: 中国地质大学, 2006.
    (ZHOU Peng-fei.Groundwater uplift mechanism under complex urban environment[D]. Beijing: China Geologic University, 2006. (in Chinese))
    [5]
    方玉树. 基于水压率讨论土中孔隙水压力及有关问题[J]. 岩土工程界, 2007, 10(5): 21-26.
    (FANG Yu-shu.Discussion on pore pressure and related problems considering hydraulic pressure ratio[J]. Geotechnical Engineering World, 2007, 10(5): 21-26. (in Chinese))
    [6]
    梅国雄, 宋林辉, 宰金珉. 地下水浮力折减试验研究[J]. 岩土工程学报, 2009, 31(9): 1476-1480.
    (MEI Guo-xiong, Song Lin-hui, ZAI jin-ming. Experimental study on reduction of groundwater buoyancy[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(9): 1476-1480. (in Chinese))
    [7]
    SONG L H, KANG X, MEI G X.Buoyancy force on shallow foundations in clayey soil: an experimental investigation based on the “half interval search”[J]. Ocean Engineering, 2017, 129: 637-641.
    [8]
    章胜南. 成层土中围护结构所受水土压力的计算[J]. 岩土工程学报, 1998, 20(4): 98-100.
    (ZHANG Sheng-nan.Water and earth pressures acting on retaining structure in layered soil[J]. Chinese Journal of Geotechnical Engineering, 1998, 20(4): 98-100. (in Chinese))
    [9]
    RICE J D.A study on the long-term performance of seepage barriers in dams[D]. Virginia: Virginia Polytechnic Institute and State University, 2007.
    [10]
    RICE J D, DUNCAN J M.Findings of case histories on the long-term performance of seepage barriers in dams[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2009, 136(1): 2-15.
    [11]
    张在明, 沈小克, 周宏磊, 等. 国家大剧院工程中的几个岩土工程问题[J]. 土木工程学报, 2009, 42(1): 60-65.
    (ZHANG Zai-ming, SHEN Xiao-ke, ZHOU Hong-lei, et al.Geotechnical aspects of the National Centre for the Performing Arts[J]. China Civil Engineering Journal, 2009, 42(1): 60-65. (in Chinese))
    [12]
    孙保卫, 徐宏声. 孔隙水压力测试与建筑抗浮水压力的确定[J]. 工程勘察, 1998(3): 31-35.
    (SUN Bao-wei, XUN hong-sheng. Pore water pressure test and determination of antifloat water pressure[J]. Geotechnical Investigation & Surveying, 1998(3): 31-35. (in Chinese) )
    [13]
    李广信, 吴剑敏. 浮力计算与黏土中的有效应力原理[J]. 岩土工程技术, 2003(2): 63-66.
    (LI Guang-xin, WU Jian-min.Calculation of uplift pressure on underground construction and effective stress principle in clay[J]. Geotechnical Engineering Technique, 2003(2): 63-66. (in Chinese))
    [14]
    曹依雯, 黄润秋, 沈水龙, 等. 基桩对含水层渗流阻挡作用效应研究[J]. 岩土力学, 2014, 35(6): 1617-1622.
    (CAO Yi-wen, HUANG Run-qiu, SHEN Shui-long, et al.Investigation of blocking effect on groundwater seepage of piles in aquifer[J]. Rock and Soil Mechanics, 2014, 35(6): 1617-1622. (in Chinese))
    [15]
    郑伟龙. 北京地区地下结构上的浮力作用机理试验研究[D]. 北京: 中国地质大学, 2005.
    (ZHEGN Wei-long.Experimental study on action mechanism of uplift on the underground structure in Beijing[D]. Beijing: China Geologic University, 2005. (in Chinese))
    [16]
    张竹庭. 地下水渗流对地下结构抗浮计算的影响分析[J]. 建筑施工, 2012, 34(8): 780-782.
    (ZHANG Zhu-ting.Impact analysis of underground water seepage upon anti-floating calculation of underground structure[J]. Building Construction, 2012, 34(8): 780-782. (in Chinese))
    [17]
    熊欢. 地下结构抗浮设计中浮力的研究[D]. 长沙:中南大学, 2013.
    (XIONG Huan.Research on buoyancy in anti-floating design of underground structures[D]. Changsha: Central South University, 2013. (in Chinese))
    [18]
    张欣海. 深圳地区地下建筑抗浮设计水位取值与浮力折减分析[J]. 勘察科学技术, 2004(2): 12-15.
    (ZHANG Xin-hai.Analysis of defence water level and reduction factor of buoyancy for underground buildings in Shenzhen area[J]. Site Investigation Science and Technology, 2004(2): 12-15. (in Chinese))
    [19]
    李镜培, 孙文杰. 地下结构的浮力计算与抗拔桩设计方法研究[J]. 结构工程师, 2007, 23(2): 80-84.
    (LI Jing-pei, SUN Wen-jie.Study on design of uplift piles and calculation of float in underground structures[J]. Structural Engineers, 2007, 23(2): 80-84. (in Chinese))
    [20]
    李超. 建筑抗浮设计水位的合理取值[J]. 工程勘察, 2014, 42(4): 49-54.
    (LI Chao.Reasonable value of water level for building anti-floating design[J]. Geotechnical Investigation & Surveying, 2014, 42(4): 49-54. (in Chinese))
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