Volume 22 Issue 1
Mar.  2016
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WANG Cun, HOU Yu-jing, LIU Guo-bao, et al., 2016. THE METHOD AND APPLICATION OF CENTRIFUGAL MODELING TO VERTICAL STRIP DRAINS IN SOFT FOUNDATION. Journal of Geomechanics, 22 (1): 125-134.
Citation: WANG Cun, HOU Yu-jing, LIU Guo-bao, et al., 2016. THE METHOD AND APPLICATION OF CENTRIFUGAL MODELING TO VERTICAL STRIP DRAINS IN SOFT FOUNDATION. Journal of Geomechanics, 22 (1): 125-134.

THE METHOD AND APPLICATION OF CENTRIFUGAL MODELING TO VERTICAL STRIP DRAINS IN SOFT FOUNDATION

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  • Received: 2015-10-26
  • Published: 2016-03-01
  • Centrifuge model tests were carried out to simulate the construction and operation of the dike on a soft soil foundation by using the geotechnical centrifuge in IWHR. The vertical strip drains in the foundation were simulated by a kind of model cylinder vertical drains, based on the principle of same consolidation degree in the foundation in average for both type of drains. During the model tests, the construction processes were simulated by loading dike materials layer by layer when the centrifuge stops running. Laser displacement sensors and the pore pressure transducers were installed for model measurement of settlement and pore pressure variation during tests. Based on the measured data, the final settlement of the dike was estimated by using experience hyperbolic method. And the consolidation degree of the foundation over time was also calculated, which indicates the average consolidation of the sludge and the sand under the dike. Comparing the consolidation degree of the soft foundation from the results of pore water pressure and that of the theoretical calculation, it shows that the simulation method of vertical strip drains presented in this paper is feasible and acceptable. The comparison of the model test results with that of theoretical calculation indicates that the strip drain simulation method described in this paper is acceptable.

     

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  • [1]
    侯瑜京, 韩连兵, 梁建辉.深水港码头围堤和群桩结构的离心模型试验[J].岩土工程学报, 2004, 26(5):594~600 http://www.cnki.com.cn/Article/CJFDTOTAL-YTGC200405003.htm

    HOU Yu-jing, HAN Lian-bing, LIANG Jian-hui. Centrifuge modeling of sea dike and pile groups in a harbor[J].Chinese Journal of Geotechnical Engineering, 2004, 26(5):594~600. http://www.cnki.com.cn/Article/CJFDTOTAL-YTGC200405003.htm
    [2]
    包承纲, 蔡正银, 陈云敏, 等.岩土离心模拟技术的原理和工程应用[M].武汉:长江出版社, 2011

    BAO Cheng-gang, CAI Zheng-yin, CHEN Yun-min, et al. The principle and engineering application of geotechnical centrifuge modeling technology[M]. Wuhan:The Changjiang Press, 2011.
    [3]
    Sharma J S, Bolton M D. Centrifugal and numerical modeling of reinforced embankments on soft clay installed with wick drains[J]. Geotextiles and Geomembranes, 2001, 19:23~44. doi: 10.1016/S0266-1144(00)00009-1
    [4]
    卢国胜.塑料排水板处理软基的离心机试验研究[J].西南科技大学学报, 2006, 21(4):43~45 http://www.cnki.com.cn/Article/CJFDTOTAL-XNGX200604009.htm

    LU Guo-sheng. Centrifuge Experiment to Improve Soft Foundation through Plastic Wick Drain[J]. Journal of Southwest University of Science and Technology, 2006, 21(4): 43~45. http://www.cnki.com.cn/Article/CJFDTOTAL-XNGX200604009.htm
    [5]
    饶锡保, 龚壁卫, 程展林, 等. 基于离心模型试验的某公路软基沉降变形规律研究[C] //中国水利学会2007学术年会论文集: 物理模拟技术在岩土工程中的应用. 苏州: 中国水利学会, 2007: 119~125 http://cpfd.cnki.com.cn/Article/CPFDTOTAL-ZGSL200710004020.htm

    RAO Xi-bao, GONG Bi-wei, CHENG Zhan-lin, et al. The Research of Settlement Deformation Law of a Certain Highway Soft Foundation Based on the Centrifugal Model Test[C] //The monograph of academic annual conference held by Chinese Hydraulic Engineering Society in 2007: Physical simulation technology application in geotechnical engineering. Suzhou: Chinese Hydraulic Engineering Society, 2007: 119~125. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-ZGSL200710004020.htm
    [6]
    蒋关鲁, 胡润忠, 李安洪.离心模型试验预测中等压缩性土地基沉降的可行性[J].交通运输工程学报, 2011, 11(6):18~23 http://www.cnki.com.cn/Article/CJFDTOTAL-JYGC201106006.htm

    JIANG Guan-lu, HU Run-zhong, LI An-hong. Feasibility of predicting settlement of medium compression soil foundation with centrifuge model test[J].Journal of Traffic and Transportation Engineering, 2011, 11(6):18~23. http://www.cnki.com.cn/Article/CJFDTOTAL-JYGC201106006.htm
    [7]
    陈胜立, 张建民, 张丙印, 等.软土地基上土工织物加筋堤的离心模型试验研究[J].岩土力学, 2006, 27(5):804~806 http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX200605025.htm

    CHEN Sheng-li, ZHANG Jian-min, ZHANG Bing-yin, et al. Numerical Simulation of Centrifugal Model Test on Reinforced Embankment with Lime-stabilized Soil as Backfill On Soft Clay Foundation[J].Chinese Journal of Rock Mechanics and Engineering, 2006, 27(5):804~806. http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX200605025.htm
    [8]
    侯瑜京.离心模型试验模拟塑料排水板处理软基的试验研究[J].大坝观测与土工测试, 1995, 19(5):18~20 http://www.cnki.com.cn/Article/CJFDTOTAL-DBGC505.003.htm

    HOU Yu-jing. Centrifugal Modeling of The Plastic Plank in Soft Foundation Treatment[J].Dam Observation and Geotechnical Tests, 1995, 19(5):18~20. http://www.cnki.com.cn/Article/CJFDTOTAL-DBGC505.003.htm
    [9]
    高长胜, 张凌, 汪肇京, 等.塑料排水板的等效直径[J].水利水运工程学报, 2002, 4:43~45 http://www.cnki.com.cn/Article/CJFDTOTAL-SLSY200204006.htm

    GAO Chang-sheng, ZHANG Ling, WANG Zhao-jing, et al. Equivalent diameter of prefabricated drain[J].HYDRO-SCIENCE AND ENGINEERING, 2002, 4:43~45. http://www.cnki.com.cn/Article/CJFDTOTAL-SLSY200204006.htm
    [10]
    BARRON R A. Consolidation of fine-grained soils by drain wells[J]. Transactions of the American Society of Civil Engineers, 1948, 113: 718~754. https://trid.trb.org/view.aspx?id=118608
    [11]
    孔德金, 苗中海.软基加固检测孔隙水压力分析[J].港工建设, 2000, 3:29~31 http://www.cnki.com.cn/Article/CJFDTOTAL-GAOG200003013.htm

    KONG De-jin, MIAO Zhong-hai. The Analysis on Variation of Pore Water Pressure during Consolidating Soft Soil Foundation[J].PORT ENGINEERING TECHNOLOGY, 2000, 3:29~31. http://www.cnki.com.cn/Article/CJFDTOTAL-GAOG200003013.htm
    [12]
    罗勇, 龚晓南, 连峰.成层地基固结性状中不同定义平均固结度研究分析[J].科技通报, 2006, 22(6):814~816 http://www.cnki.com.cn/Article/CJFDTOTAL-KJTB200606017.htm

    LUO Yong, GONG Xiao-nan, LIAN Feng. Comparable Analysis of Different Definitions of Average Degree of Consolidation of Layered Soils[J].BULLETIN OF SCIENCE AND TECHNOLOGY, 2006, 22(6):814~816. http://www.cnki.com.cn/Article/CJFDTOTAL-KJTB200606017.htm
    [13]
    程强, 顾立军, 冯伟骞.由实测沉降曲线推求最终沉降量计算方法的探讨[J].海河水利, 2010, 4:37~39 doi: 10.3969/j.issn.1004-7328.2010.04.015

    CHENG Qiang, GU Li-jun, FENG Wei-jian. The Method of Calculating the Final Settlement by the Measured Settlement Curve[J].HAIHE WATER RESOUCES, 2010, 4:37~39. doi: 10.3969/j.issn.1004-7328.2010.04.015
    [14]
    姜远文, 吉随旺.由实测孔隙水压力数据推算软黏土的固结系数和固结度[J].路基工程, 2001, 2:26~29 doi: 10.3969/j.issn.1003-8825.2001.02.009

    JIANG Yuan-wen, JI Sui-wang. The Calculation of the coefficient of consolidation and consolidation of soft clay by the measured pore water pressure[J].THE SUBGRADE ENGINEERING, 2001, 2:26~29. doi: 10.3969/j.issn.1003-8825.2001.02.009
    [15]
    钱晓丽, 张建勋, 陈为群.塑料排水板地基处理固结沉降特性[J].贵州大学学报(自然科学版), 2010, 27(3):92~94 http://www.cnki.com.cn/Article/CJFDTOTAL-GZDI201003024.htm

    QIAN Xiao-li, ZHANG Jian-xun, CHEN Wei-qun. Characteristics of Consolidation Settlement in Ground Treatment for Plastic Vertical Drain[J].Journal of Guizhou University(Natural Science), 2010, 27(3):92~94. http://www.cnki.com.cn/Article/CJFDTOTAL-GZDI201003024.htm
    [16]
    JTS. 147-1-2010, 港口工程地基规范[S].

    JTS. 147-1-2010, Code for Foundation in Port Engineering[S]
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