高级搜索
  • 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

加筋土结构中筋材拉拔力的分布规律研究

刘续, 唐晓武, 申昊, 高柏松

刘续, 唐晓武, 申昊, 高柏松. 加筋土结构中筋材拉拔力的分布规律研究[J]. 岩土工程学报, 2013, 35(4): 800-804.
引用本文: 刘续, 唐晓武, 申昊, 高柏松. 加筋土结构中筋材拉拔力的分布规律研究[J]. 岩土工程学报, 2013, 35(4): 800-804.
shu
LIU Xu, TANG Xiao-wu, SHEN Hao, GAO Bai-song. Stress distribution of reinforcement of reinforced soil structures under drawing force[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(4): 800-804.
Citation: LIU Xu, TANG Xiao-wu, SHEN Hao, GAO Bai-song. Stress distribution of reinforcement of reinforced soil structures under drawing force[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(4): 800-804.
shu

加筋土结构中筋材拉拔力的分布规律研究  English Version

  • 1. 浙江大学建筑工程学院滨海和城市岩土工程研究中心，浙江 杭州 310058; 2. 中国中铁二院工程集团有限责任公司，四川 成都 610031

基金项目: 成都铁二院合作项目（科2011-29）；浙江省重大科技专项重点社会发展资助项目（2009C03008-1）
详细信息
    作者简介:

    刘续(1988- )，男，浙江杭州人，硕士研究生，主要从事土工合成材料在加筋地基中应用等方面的研究。E-mail: liuxur811@163.com。

  • 中图分类号: TU411

Stress distribution of reinforcement of reinforced soil structures under drawing force

  • 1. Research Center of Costal and Urban Geotechnical Engineering, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China; 2. China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China

摘要

    摘要
  • 摘要: 分析了加筋材料在拉拔试验条件下，筋材所受到的拉力、剪应力、应变之间的关系，利用筋土界面间存在的抗剪刚度系数G，建立起了与材料拉伸模量Er和G有关的拉拔影响系数α，从而推导出拉力沿筋材分布的公式和各点筋土的相对位移公式。通过与已有的试验数据相对比，证实该公式的可行性。分析了拉力在筋材上的传播规律和α对筋材拉拔力分布的影响，表明用α能综合反映压应力、摩阻力、土体性质等多种因素对筋材拉力的影响。在加筋土结构中，筋材位移不是很大时，采用该公式能较好地估算筋材各处的拉力。
    Abstract: The relationship among tension, shear stress and strain of geosynthetics is analyzed by means of pull-out tests. By using the shearing resistance stiffness coefficient G existing at the reinforced soil interface, a pull-out coefficient Er that relates to the tensile modulus Er and G, is established, and thus the formulas for stress distribution and the relative displacement along the geosynthetics are derived. The feasibility of the formulas is confirmed by comparing with the existing experimental data. Then the stress transmission way of geosynthetics with the increase of tension and the influence of α on stress distribution of geosynthetics are analyzed. It is shown that α can be better used to reflect the influences of many factors such as stress, friction and soil properties on the tension of geosynthetics. In the structure of reinforced soil, the proposed formulas are better to estimate the tension of geosynthetics under small displacement.
    • HTML全文
    • 参考文献(11)
  • [1] 史旦达,刘文白,水伟厚,等. 单、双向塑料土工格栅与不同填料界面作用特性对比试验研究[J]. 岩土力学, 2009,308:2237-2244. SHI Dan-da, LIU WEN-Bai, SHUI Wei-hou, et al. Comparative experimental studies of interface characteristics between uniaxial/biaxial plastic geogrids and different soils[J]. Rock and soil Mechanics, 2009, 308
    [2] 徐 超,廖星樾. 土工格栅与砂土相互作用机制的拉拔试验研究[J]. 岩土力学, 2011,322:423-428. XU Chao, LIAO Xing-yue, Researches on interacton mechanism between geogrid and sand by pull-out tests[J]. Rock and Soil Mechanics, 2011, 322
    [3] SUGIMOTO M, ALAGIYAWANNA A M N, KADOGUCHI K. Influence of rigid and flexible face on geogrid pullout tests[J]. Geotextiles and Geomembranes, 2001,19:257-277.
    [4] ALFARO M C, MIURA N, BERGADO D T. Soil-geogrid reinforcement interaction by pullout and direct shear tests[J]. Geotechnical Testing Journal, 1995,182:157-167.
    [5] 刘文白,周 健. 土工格栅与土界面作用特性试验研究[J]. 岩土力学, 2009,304:965-970. LIU Wen-bai, ZHOU Jian. Experimental research on interface friction of geogrids and soil[J]. Rock and Soil Mechanics, 2009, 304
    [6] PETERSON L M, ANDERSON L R. Pull-out resistance of welded wire mats embedded in soil[D]. Logan: Master of Science Thesis, Utah State University,1980.
    [7] SAWICKI A. Modelling of geosynthetic reinforcement in soil retaining walls[J]. Geosynthetics International, 1998,53:327-345.
    [8] 陈 榕,栾茂田,赵 维,等. 土工格栅拉拔试验及筋材摩擦受力特性研究[J]. 岩土力学, 2009,304:960-964. CHEN Rong, LUAN Mao-tian, ZHAO Wei, et al. Research on pull-out test and frictional resistance characteristic of geogrids[J]. Rock and Soil Mechanics, 2009, 304
    [9] 杨广庆,李广信,张保俭. 土工格栅界面摩擦特性试验研究[J]. 岩土工程学报, 2006,288:948-952. YANG Guang-qing, LI Guang-xin, ZHANG Bao-jian.
    Experimental studies on interface friction characteristics of geogrids[J]. Chinese Journal of Geotechnical Engineering, 2006, 288: 948-952. (in Chinese)
    [10] NAYERI A, FAKHARIAN K. Study on pullout behavior of uniaxial HDPE geogrids under monotonic and cyclic loads[J]. International Journal of Civil Engineering, 2009,74:211-223.
    [11] HIDETOSHI Ochiai, JUN Otani, SHIGENORI Hayashic,et al. The pull-out resistance of geogrids in reinforced soil[J]. Geotextiles and Geomembranes, 1996,141:19-42.
    • 相关文章
    • 施引文献
    • 资源附件(0)
计量
  • 文章访问数:  799
  • HTML全文浏览量:  0
  • PDF下载量:  621
  • 被引次数: 0
出版历程
  • 收稿日期:  2012-04-26
  • 发布日期:  2013-04-17

目录

摘要
HTML全文
    参考文献(11)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回
    版权所有 © 2010水利部交通部国家能源局南京水利科学研究院 苏ICP备05007122号-11公安联网备案号：32010602011255
    编辑部地址：南京市虎踞关34号《岩土工程学报》编辑部邮编：210024电话：025-85829534，85829556E-mail: ge@nhri.cn