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Volume 39 Issue z2
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LEI Hua-yang, LIU Ying-nan, FENG Shuang-xi, LIU Jing-jin. Model tests and numerical simulations of newly sheet-free vacuum preloading method for ultra-soft dredger fills[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(z2): 189-193. DOI: 10.11779/CJGE2017S2046
Citation: LEI Hua-yang, LIU Ying-nan, FENG Shuang-xi, LIU Jing-jin. Model tests and numerical simulations of newly sheet-free vacuum preloading method for ultra-soft dredger fills[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(z2): 189-193. DOI: 10.11779/CJGE2017S2046
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Model tests and numerical simulations of newly sheet-free vacuum preloading method for ultra-soft dredger fills

  • 1. Key Laboratory of Coast Civil Structure Safety of Ministry of Education, Tianjin University, Tianjin 300072,China;
    2.School of Civil Engineering, Tianjin University, Tianjin 300072, China

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  • Received Date: August 01, 2017
  • Published Date: December 19, 2017
    Graphical Abstract
    • Abstract
  • There are problems when dealing with the dredger fills using the traditional vacuum preloading method, for example, the treated area can not be too large and the plastic-sheet maybe leaks. To solve these problems, the new sheet-free vacuum preloading method is proposed, in which the mud-covering replaces the plastic sheet. This method can improve the treated area, save the cost of plastic sheet and solve the problem of piling up dredger fills. In order to investigate the effect and influence factors of the new vacuum preloading method, laboratory model tests and numerical simulations are carried out. The displacement of soil, the change of pore water pressure at the specific location and the settlement of soil surface in different loading modes are studied. The conclusions are that the effect of the sheet-free vacuum preloading method on the soft soil foundation treatment is good, and the effect of the treatment can be improved by the way of graded loading. The numerical simulation software PFC2D is used to study the movement of soil particles in the process of sheet-free vacuum preloading. The results show that under the vacuum pressure, the soil particles mainly gather towards the PVDs. It can reduce the clogging of PVDs by graded loading to get better treatment effect.
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    • References (14)
  • [1]
    唐羿生. 天津港东突堤辅建区真空预压工程加固效果的调查与分析[J]. 港口工程, 1988(6): 2-7. (TANG Yi-sheng. Research and analysis on vacuum preloading project in Tianjin port[J]. Harbour Engineering, 1988(6): 2-7. (in Chinese))
    [2]
    叶柏荣, 陆舜英, 唐羿生, 等. 袋装砂井—真空预压法加固软土地基[J]. 水运工程, 1983(4): 25-32, 41. (YE Bo-rong, LU Shun-ying, TANG Yi-sheng, et al. Vacuum preloading method for soft clay with bagged sand well[J]. Port & Waterway Engineering, 1983(4): 25-32, 41. (in Chinese))
    [3]
    钱 征, 李广武. 袋装砂井预压加固天津新港软土地基的试验研究[J]. 水运工程, 1981(9): 40-44. (QIAN Zheng, LI Guang-wu. Test on bagged sand well preloading for soft clay in Tianjin[J]. Port & Waterway Engineering, 1981(9): 40-44. (in Chinese))
    [4]
    陈 环, 鲍秀清. 负压条件下土的固结有效应力[J]. 岩土工程学报, 1984, 6(5): 39-47. (CHEN Huan, BAO Xiu-qing. Consolidation effeetive stresses in soil under the negative pressure condition[J]. Chinese Jounal of Geotechnical Engineering, 1984, 6(5): 39-47. (in Chinese))
    [5]
    闫澍旺, 陈 环. 用真空加固软土地基的机制与计算方法[J]. 岩土工程学报, 1986, 8(2): 35-44. (YAN Shu-wang, CHEN Huan. Mechanism and calculation methods of vacuum stabilization of soft clay[J]. Chinese Jounal of Geotechnical Engineering, 1986, 8(2): 35-44. (in Chinese))
    [6]
    郭炳川. 真空预压加固新近吹填土新工艺及机理研究[D]. 天津: 天津大学, 2015. (GUO Bing-chuan. Theory and new technology study on using vacuum preloading to improve recently filled dredge[D]. Tianjin: Tianjin University, 2015. (in Chinese))
    [7]
    INDRARATNA B, KIANFAR K, RUJIKIATKAMJORN C, et al. Soft clay properties for non-Darcian radial drainage with vacuum preloading, based on Rowe cell testing[J]. Australian Geomechanics Journal, 2014, 49(4): 183-190.
    [8]
    CHAI J C, CARTER J P, HAYASHI S. Vacuum consolidation and its combination with embankment loading[J]. Canadian Geotechnical Journal, 2006, 43(10): 985-996.
    [9]
    陈志高. 无膜真空预压排水软基加固法的工程应用[J]. 中国水运(下半月), 2013(2): 261-262, 264. (CHEN Zhi-gao. Application of sheet-free vacuum preloading method to reinforce soft clay[J]. China Water Transport, 2013(2): 261-262, 264. (in Chinese))
    [10]
    罗 戌, 顾长存, 马殿光. 常规真空预压与低位真空预压软基加固方法比较[J]. 水道港口, 2004(3): 163-167. (LUO Rong, GU Chang-cun, MA Dian-guang. Comparison between traditional vacuum preloading method and lower vacuum preloading method[J]. Journal of Waterway and Harbor, 2004(3): 163-167. (in Chinese))
    [11]
    黄宗煜. 低位真空预压法在温州围涂造地项目工程中的应用研究[D]. 杭州: 浙江工业大学, 2011. (HUANG Zong-yu. Application of lower vacuum preloading method in Wenzhou land reclamation project[D]. Hangzhou: Zhejiang University of Technology, 2011. (in Chinese))
    [12]
    江 波. 采用低位真空预压技术在东钱湖加固淤泥基础的实践[J]. 吉林水利, 2007(10): 33-35. (JIANG Bo. Lower vacuum preloading method for soft foundation in Dongqian Lake[J]. Jilin Water Resources, 2007(10): 33-35. (in Chinese))
    [13]
    JGJ79—2012建筑地基处理技术规范[S]. 2012. (JGJ79—2012 Technical code for ground treatment of buildings[S]. 2012. (in Chinese))
    [14]
    武亚军, 覃 萍, 杨建波. 真空荷载下超软土固结试验及土颗粒移动数值模拟研究[J]. 水运工程, 2013(9): 116-122. (WU Ya-jun, TAN Ping, YANG Jian-bo. Consolidation test for soft soil and numerical simulation of soil particle movement under vacuum loading[J]. Port & Waterway Engineering, 2013(9): 116-122. (in Chinese))
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