• 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引(EI)收录期刊
  • Scopus数据库收录期刊

单个高强土工格室作用机理的有限元分析

侯娟, 张孟喜, 韩晓, 李荣

侯娟, 张孟喜, 韩晓, 李荣. 单个高强土工格室作用机理的有限元分析[J]. 岩土工程学报, 2015, 37(zk1): 26-30. DOI: 10.11779/CJGE2015S1006
引用本文: 侯娟, 张孟喜, 韩晓, 李荣. 单个高强土工格室作用机理的有限元分析[J]. 岩土工程学报, 2015, 37(zk1): 26-30. DOI: 10.11779/CJGE2015S1006
HOU Juan, ZHANG Meng-xi, HAN Xiao, LI Rong. Mechanism of a high-strength geocell using FEM[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(zk1): 26-30. DOI: 10.11779/CJGE2015S1006
Citation: HOU Juan, ZHANG Meng-xi, HAN Xiao, LI Rong. Mechanism of a high-strength geocell using FEM[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(zk1): 26-30. DOI: 10.11779/CJGE2015S1006

单个高强土工格室作用机理的有限元分析  English Version

基金项目: 国家自然科学基金项目(41202215,41372280)
详细信息
    作者简介:

    侯 娟(1975- ),女,讲师、硕士生导师,从事土工合成材料和加筋土方面的教学和科研工作。

Mechanism of a high-strength geocell using FEM

  • 摘要: 建立了方形基础下单个高强土工格室加筋地基和未加筋地基的有限元模型,通过对比分析未加筋地基和单个高强土工格室加筋地基中的水平位移分布、水平压力分布、格室-土界面的相互作用以及格室壁上的压力和摩擦力分布等,研究了单个高强土工格室对土体的作用机理。发现高强土工格室中除了对土体有侧壁的摩擦作用外,还对其内部的砂土有较大环箍作用,在这两个主要作用之下,高强土工格室能有效地限制其内砂土的水平向运动,阻隔砂土间内力的传递,进而提高地基的承载力。
    Abstract: The comprehensive results from FEM on square footings supported on high-strength geocell and unreinforced sand beds are introduced. The stress distribution, displacement distribution and friction on the surface of a high-strength geocell-reinforced foundation are studied. The results show that the high-strength geocell reinforcement system behaves much stiffer and carries greater loading than the equivalent unreinforced system does. Beside the friction of geocell, the height of geocell keeps the sand from being displaced under the applied load and redistributeds the surcharge over a wider area, thereby it increases the shear strength of the composite system, which in turn substantially improves the bearing capacity of a sand bed.
  • [1] 包承纲. 土工合成材料应用原理与工程实践[M]. 北京:中国水利水电出版社, 2008. (BAO Cheng-gang. The principle and application of geosynthetics in engineering[M]. Beijing: China WaterPower Press, 2008. (in Chinese))
    [2] JENNERC G, BASSET RH, BUSHDI. The use of slip line fields to assess the improvement in bearing capacity of soft ground given by cellular foundation mattress installed at the base of an embankment[C]// Proceedings of International Geotechnical Symposium on the Oryand Practice of Earth Reinforcement. Rotterdam: Balkema, 1988: 209-214.
    [3] 郑 刚, 龚晓南, 谢永利, 等. 地基处理技术发展综述[J]. 土木工程学报, 2012, 45(2): 127-146. (ZHENG Gang, GONG Xiao-nan, XIE Yong-li, et al. State of the art techniques for ground improvement in China[J]. China Civil Engineering Journal, 2012, 45(2): 127-146. (in Chinese))
    [4] DASH SK, KRISHNASWAMY NR, RAJAGOPAL K. Bearing capacity of strip footings supported ongeocell-reinforced sand[J]. Geotextiles and Geomembranes, 2001, 19(4): 235-256.
    [5] MADHAVI L G, DASH S K, RAJAGOPAL K.Numerical simulation of the behavior of geocell reinforced sand in foundations[J]. International Journal of Geomechanics, 2009, 9(4): 143-152.
    [6] DASH S K. Effect of geocelltype on load-carrying mechanisms of geocell-reinforced sand foundations[J]. International Journal of Geomechanics, 2012, 12(5): 537-548.
    [7] SIREESH S, SITHARAM T G, DASH S K. Bearing capacity of circular footing on geocell-sand mattress overlying clay bed with void[J]. Geotextiles and Geomembranes, 2008, 27(1): 89-98.
    [8] TAFRESHI MOGHADDAS S N, DAWSONA R. Comparison of bearing capacity of a strip footing on sand with geocell and with planar forms of geotextile reinforcement[J]. Geotextiles and Geomembranes, 2010, 28(1): 72-84.
    [9] 边学成, 宋 广, 陈云敏. Pasternak地基中土工格室加筋体的受力变形分析[J]. 工程力学, 2012, 29(5): 147-155. (BIAN Xue-cheng, SONG Guang, CHEN Yun-min. Deformation behaviors of geocell reinforcement in Pasternak ground engineering mechanics[J]. Engineering Mechanics, 2012, 29(5): 147-155. (in Chinese))
    [10] 赵明华, 陈炳初, 尹平保, 等. 土工格室碎石基层+刚性路面承载特性模型试验研究[J]. 岩土工程学报, 2012, 34(4): 577-581. (ZHAO Ming-hua, CHEN Bing-chu, YIN Ping-bao, et al. Model tests on bearing capacity characteristics of geocell gravelbase and rigid pavement[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(4): 577-581. (in Chinese))
    [11] 李广信. 关于土工合成材料加筋设计的若干问题[J]. 岩土工程学报, 2013, 35(4): 605-610. (LI Guang-xin. Some problems in design of geosynthetic-reinforced soil structures[J]. Chinese Journal of Geotechnical Engineering,2013, 35(4): 605-610. (in Chinese))
    [12] 郭庆淀, 顾跃强, 张立杰. 高强土工格室在高速公路路基施工中的应用[J]. 山西建筑, 2009, 35(4): 298-299. (GUO Qing-dian, GU Yue-qiang, ZHANG Li-jie. The high intensity geogrid application in express highway foundation construction[J]. Shanxi Architecture, 2009, 35(4): 298-299.)
    [13] 陈建峰, 汪嘉嘉, 徐 超. 加筋土挡墙动力特性研究进展[J]. 灾害学, 2011, 26(3): 52-55. (CHEN Jian-feng, WANG Jia-jia, XU Chao. Research status of dynamic properties of reinforced soil retaining walls[J]. Journal of Catastrophology, 2011, 26(3): 52-55. (in Chinese))
    [14] 韩 晓, 张孟喜, 李嘉洋, 等. 高强土工格室加筋砂土地基模型试验研究[J]. 长江科学院院报, 2014, 31(03): 27-33. (HAN Xiao, ZHANG Men-xi, LI Jia-yang, et al. Model test of sand foundation reinforced with high-strength geocell[J]. Journal of Yangtze River Scientific Research Institute, 2014, 31(03): 27-33. (in Chinese))
  • 期刊类型引用(7)

    1. 陈忠清,高彦斌,吕越,吴早生,魏威. 碱渣-粉煤灰基地聚合物固化软黏土的强度及渗透性研究. 地基处理. 2024(02): 134-145 . 百度学术
    2. 李清,唐伊婷,赵婧如,李嘉瀚. 粉煤灰改良路用碱渣土强度试验研究. 四川建筑. 2024(03): 210-212 . 百度学术
    3. 徐泉,王国栋,曹军,郭云云,赵婧如. 路用碱渣复合土水稳定性试验研究. 福建建筑. 2024(07): 76-79 . 百度学术
    4. 王元战,龚晓龙,王轩,张春生,谢涛. 碱渣土的触变性与扰动后强度演化规律研究. 天津大学学报(自然科学与工程技术版). 2023(06): 633-640 . 百度学术
    5. 何俊,吕晓龙,王文鹏. 碱渣-矿渣固化疏浚淤泥含水率控制方法研究. 人民长江. 2023(07): 196-202 . 百度学术
    6. 余海燕,胡林童. 轻质碱渣-氯氧镁水泥基材料性能研究及孔结构特征分析. 混凝土与水泥制品. 2022(04): 78-83 . 百度学术
    7. 尹平保,王书勤,贺炜,杨文斌,杨铠波,陈彦虎. 镍铁渣–黏土–水泥改性土力学特性试验及修正的邓肯–张模型. 工程科学与技术. 2022(05): 93-102 . 百度学术

    其他类型引用(7)

计量
  • 文章访问数: 
  • HTML全文浏览量:  0
  • PDF下载量: 
  • 被引次数: 14
出版历程
  • 收稿日期:  2015-03-25
  • 发布日期:  2015-07-24

目录

    /

    返回文章
    返回