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

土工格栅-土体界面特性大型直剪试验研究

刘开富, 许家培, 周青松, 谢新宇, 胡意

刘开富, 许家培, 周青松, 谢新宇, 胡意. 土工格栅-土体界面特性大型直剪试验研究[J]. 岩土工程学报, 2019, 41(S1): 185-188. DOI: 10.11779/CJGE2019S1047
引用本文: 刘开富, 许家培, 周青松, 谢新宇, 胡意. 土工格栅-土体界面特性大型直剪试验研究[J]. 岩土工程学报, 2019, 41(S1): 185-188. DOI: 10.11779/CJGE2019S1047
shu
LIU Kai-fu, XU Jia-pei, ZHOU Qing-song, XIE Xin-yu, HU Yi. Large-scale direct shear tests on properties of geogrid-soil interfaces[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S1): 185-188. DOI: 10.11779/CJGE2019S1047
Citation: LIU Kai-fu, XU Jia-pei, ZHOU Qing-song, XIE Xin-yu, HU Yi. Large-scale direct shear tests on properties of geogrid-soil interfaces[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S1): 185-188. DOI: 10.11779/CJGE2019S1047
shu

土工格栅-土体界面特性大型直剪试验研究  English Version

  • 1. 浙江理工大学建工学院,浙江 杭州 310018;
    2. 浙江大学滨海和城市岩土工程研究中心,浙江 杭州 310058;
    3. 浙江大学宁波理工学院,浙江 宁波 315100

基金项目: 国家自然科学基金项目（51878619）; 浙江省自然科学基金项目（LY13E090010）
详细信息
    作者简介:

    刘开富(1977—),男,山东临沂人,博士,副教授、硕士生导师,主要从事软黏土力学及地基处理、土木工程材料性状等方面的研究。E-mail：liukaifu@zstu.edu.cn。

Large-scale direct shear tests on properties of geogrid-soil interfaces

  • 1. School of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, China;
    2. Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China;
    3. Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China

摘要

    摘要
  • 摘要: 土工格栅与土体的界面特性直接影响了加筋土工程的安全和稳定性,土工格栅两侧为不同材料的界面特性研究还较少。采用双向土工格栅为加筋材料,对其两侧分别为不同含水率粉质黏土及不同粒径石英砂的界面特性开展一系列的大型室内直剪试验,分析法向应力、粉质黏土含水率、剪切速率、石英砂粒径及粉质黏土压实系数等因素对土工格栅-土体界面抗剪强度的影响。结果表明：土工格栅-土体界面抗剪强度与法向应力呈线性相关,符合莫尔-库仑理论;粉质黏土含水率的变化对土工格栅-土体界面抗剪强度有较大的影响,在最优含水率时其界面抗剪强度指标最高;剪切速率的大小和石英砂的粒径变化对土工格栅-土体界面的抗剪强度有一定的影响,其影响范围分别在±10%和±7%内;粉质黏土压实度的增加能有效增加界面抗剪强度,压实系数越高,其提高幅度越大。这些影响应在工程应用中适当考虑。
    Abstract: The properties of geogrid-soil interface directly influences the safety and stability of reinforced earth projects. However, there are few researches on the interface properties of geogrid with different soil materials at the two sides of geogrid. A series of large-scale direct shear tests are conducted by using two-way geogrid as reinforced materials, silty clay with different water contents and quartz sand with different grain sizes. The effects on shear strength of geogrid-soil interface are analyzed under different influence factors, such as normal stress, water content of silty clay, shear velocity, grain size of quartz sand, and compaction degree of silty clay. The results show that the relationship between shear strength of geogrid-soil interface and normal stress is a linear correlation and in accordance with Mohr-Coloumb theory. The shear strength of geogrid-soil interface is influenced by the water content of silty clay. The shear strength index of interface is the highest at the optimum water content of silty clay. The shear strength of geogrid-soil interface is influenced little by the shear velocity and grain size, and their influence range is within ±10% and ±7%, respectively. The compaction degree of silty clay can improve the shear strength of geogrid-soil interface. The higher the degree of compaction is, the greater the shear strength-improving amplitude is. These factors must be considered properly in the engineering applications.
    • HTML全文
    • 参考文献(13)
  • [1] VIDAL H.The principal of reinforced earth (Highway Research Record 282)[R]. Washington D C: Highway Research Board, National Research Council, 1969: 1-24.
    [2] LEE K M, MANJUNATH V R.Soil-geotextile interface friction by direct shear test[J]. Canadian Geotechnical Journal, 2000, 37(1): 238-252.
    [3] 施有志, 马时冬. 土工格栅的界面特性试验[J]. 岩土力学, 2003, 24(2): 296-300.
    (SHI You-zhi, MA Shi-dong.Test for interface characterictics of geogrid[J]. Rock and Soil Mechanics, 2003, 24(2): 296-300. (in Chinese))
    [4] 包承纲. 土工合成材料界面特性的研究和试验验证[J]. 岩石力学与工程学报, 2006, 25(9): 1735-1744.
    (BAO Cheng-gang.Study on interface behavior of geosynthetics and soil[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(9): 1735-1744. (in Chinese))
    [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, 30(4): 965-970.
    (LIU Wen-bai, ZHOU Jian.Experimental research on interface friction of geogrids and soil[J]. Rock and Soil Mechanics, 2009, 30(4): 965-970. (in Chinese))
    [6] 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与对比试验研究[J]. 岩土力学, 2009, 30(8): 2237-2244.
    (SHI Dan-da, LIU Wen-bai, SUI Wei-hou, et al.Comparative experimental studies of interface characteristics between uniaxial/biaxial plastic geogrids and different soils[J]. Rock and Soil Mechanics, 2009, 30(8): 2237-2244. (in Chinese))
    [7] LIU C N, HO Y H, HUANG J W.Large scale direct shear tests of soil/PET-yarn geogrid interfaces[J]. Geotextiles and Geomembrances, 2009, 27(1): 19-30.
    [8] 徐超, 孟凡祥. 剪切速率和材料特性对筋-土界面抗剪强度的影响[J]. 岩土力学, 2010, 31(10): 3101-3106.
    (XU Chao, MENG Fan-xiang.Effects of shear rate and material properties on shear strength of geosynthetic-soil interface[J]. Rock and Soil Mechanics, 2010, 31(10): 3101-3106. (in Chinese))
    [9] 王协群, 张俊峰, 邹维列, 等. 格栅-土界面抗剪强度模型及其影响因素[J]. 土木工程学报, 2013, 46(4): 133-141.
    (WANG Xie-qun, ZHANG Jun-feng, ZOU Wei-lie, et al.A shear strength model of geogrid-soil interface and its influence factors[J]. China Civil Engineering Journal, 2013, 46(4): 133-141. (in Chinese))
    [10] 张建伟, 余杭, 王仕卿, 等. 黄泛区粉土-GFRP 布界面摩擦特性试验[J/OL]. 复合材料学报, https://doi.org/ 10.13801/j.cnki.fhclxb.20181129.001.(ZHANG Jian-wei, YU Hang, WANG Shi-qing, et al. Experimental study on interface friction characteristics of silty soil in the Yellow River flooding area with GFRP cloth[J]. Acta Materiae Compositae Sinica, https://doi.org/10.13801/j.cnki.fhclxb. 20181129.001. (in Chinese))
    [11] 刘泽, 雷勇. 煤矸石-土工格栅-砂层状体系的界面摩擦特性试验研究[J]. 工业建筑, 2014, 44(4): 90-93, 134.(LIU Ze, LEI Yong. Test study on the interface friction characteristics of coal gangue-geogrid-sand layered system[J]. Industrial Construction, 2014, 44(4): 90-93, 134. (in Chinese))
    [12] ASTM D5321/D5321M—14 Standard test method for determining the shear strength of soil-geosynthetic and geosynthetic-geosynthetic interfaces by direct shear[S]. ASTM International, West Conshohocken, PA, 2014.
    [13] 中华人民共和国交通部. JTG E50—2006公路工程土工合成材料试验规程[S]. 北京: 人民交通出版社, 2006.
    (Ministry of Communications of the People's Republic of China. JTG E50—2006 Test methods of geosynthetics for highway engineering[S]. Beijing: China Communications Press, 2006. (in Chinese))
    • 相关文章
    • 施引文献(28)

  • 期刊类型引用(10)

    1. 丁旭升，张凌凯，樊培培. 干湿冻融循环条件下重塑性黄土的强度劣化规律及非线性模型研究. 岩土力学. 2024(S1): 324-336 . 百度学术
    2. 丁旭升，张凌凯，樊培培. 不同排水方式的湿陷性黄土力学特性试验及邓肯-张模型的改进. 水利水电科技进展. 2024(06): 20-26+40 . 百度学术
    3. 郭江峰，胡建林，薛金昊，房宇昊，郑瑞海. 干密度对邓肯-张模型参数的影响. 河北建筑工程学院学报. 2023(02): 88-92+117 . 百度学术
    4. 潘瑞，罗丽娟，刘安龙，张勋，任翔. 黄土场地水平受荷桩的应变楔计算方法改进. 科学技术与工程. 2023(21): 9219-9225 . 百度学术
    5. 何盛东，关晓迪，张明飞，魏欢欢，马迪. 基于黄土二次抛物线准则的邓肯-张模型修正. 郑州航空工业管理学院学报. 2022(02): 92-96 . 百度学术
    6. 朱彦鹏，赵钰. 考虑参数简化的修正邓肯-张模型. 科学技术与工程. 2022(24): 10681-10687 . 百度学术
    7. 马金莲，钟秀梅，王谦，刘钊钊，柴少峰，车高凤. 基于细观结构的压实黄土抗剪特性试验研究. 防灾减灾工程学报. 2021(02): 350-356 . 百度学术
    8. 张金良，宋志宇，李潇旋，盖永岗. 高标准免管护新型淤地坝坝身过流安全性研究. 人民黄河. 2021(12): 1-4+17 . 百度学术
    9. 安然，孔令伟，张先伟. 残积土孔内剪切试验的强度特性及广义邓肯–张模型研究. 岩土工程学报. 2020(09): 1723-1732 . 本站查看
    10. 林祖宏，师永志，汪明武. 铜矿尾砂强度特性的粒度效应研究. 混凝土. 2019(07): 145-148 . 百度学术

    其他类型引用(18)

    • 资源附件(0)
计量
  • 文章访问数:  283
  • HTML全文浏览量:  9
  • PDF下载量:  122
  • 被引次数: 28
出版历程
  • 收稿日期:  2019-04-29
  • 发布日期:  2019-07-14

目录

摘要
HTML全文
    参考文献(13)
    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