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

基于筋-土界面摩擦特性的加筋边坡分析

刘动, 陈晓平, 常学宁

刘动, 陈晓平, 常学宁. 基于筋-土界面摩擦特性的加筋边坡分析[J]. 岩土工程学报, 2013, 35(zk2): 217-223.
引用本文: 刘动, 陈晓平, 常学宁. 基于筋-土界面摩擦特性的加筋边坡分析[J]. 岩土工程学报, 2013, 35(zk2): 217-223.
shu
LIU Dong, CHEN Xiao-ping, CHANG Xue-ning. Analysis of reinforced slope based on interface properties of geosynthetics and soil[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 217-223.
Citation: LIU Dong, CHEN Xiao-ping, CHANG Xue-ning. Analysis of reinforced slope based on interface properties of geosynthetics and soil[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 217-223.
shu

基于筋-土界面摩擦特性的加筋边坡分析  English Version

  • 1. 暨南大学理工学院,广东 广州 510632; 2. 暨南大学重大工程灾害与控制教育部重点实验室,广东 广州 510632; 3. 广东省水利电力勘测设计研究院,广东 广州 510170

基金项目: 国家自然科学基金项目（11072088）
详细信息
    作者简介:

    刘 动（1986- ），男，博士研究生，从事土力学及基础工程方向的研究工作，E-mail: liudong04@126.com。

  • 中图分类号: TU47

Analysis of reinforced slope based on interface properties of geosynthetics and soil

  • 1. College of Science and Engineering, Jinan University, Guangzhou 510632, China; 2. Key Laboratory of Disaster Forecast and Control in Engineering, Jinan University, Guangzhou 510632, China; 3. Guangdong Hydropower Planning＆Design Institute, Guangzhou 510170, China

摘要

    摘要
  • 摘要: 土工合成材料被广泛应用于提高边坡稳定性,筋-土界面的摩擦特性对于加筋边坡的稳定分析具有重要意义。针对广东汕头一个围海工程的加筋海堤进行了分析,通过室内试验和理论分析,研究了筋材和吹填砂的界面摩擦特性,探讨了加筋机理,并通过数值计算对软基上加筋海堤进行了自重作用下的整体稳定和变形分析。试验结果表明,吹填砂的密度对筋-土界面摩擦特性有很明显的影响,筋-土界面的剪应力-剪切位移关系呈应变硬化特征,表明加筋材料对于软基上边坡稳定起到重要作用。加筋边坡的整体稳定分析表明,筋材铺设方式对于边坡稳定性有直接影响,多层加筋对堤坝整体稳定性的提高并不是单层加筋的简单叠加。基于圆弧滑动的分析方法得到的安全系数可能偏小,基于强度折减法的整体分析方法对于界面摩擦的考虑更加合理。有限元分析还揭示,加筋对堤坝变形特性的影响主要体现在对侧向位移的约束。
    Abstract: As the geosynthetics are widely used in engineering practice to strengthen the slope stability, the interaction behaviors of geosynthetics and soil are very important for the slope stability analysis. A reinforced seawall constructed in coast reclamation project in Guangdong Province is analyzed. The interface friction properties of reinforcing materials and filling sand are studied by means of the laboratory shear tests and theoretical analyses, and the reinforcement mechanism is discussed. The numerical calculation is carried out on the stability and deformation behaviors of the reinforced slope under geostatic pressure. The test results show that the shear stress-shear displacement relationship of geosynthetics-soil interface is strain-harding. It is important for the stability of slope in soft foudation. In addition, the density of filling sand is the key factor for the frictional characteristics of interface. The stability analysis shows that the pavement method of reinforcing materials will directly affect the factor of safety of slope stability, and multilayer pavement effect is not a simple addition for every layer. Based on the circular slip surface method, the calculated factor of safety may be too small to reflect the contribution of geosynthetics, the strength reduction method is more reasonable for considering the interface friction. The finite element analysis also reveals that the effect of reinforcement on deformation behaviors of slope is mainly in the restriction to the magnitude of lateral deformation.
    • HTML全文
    • 参考文献(17)
  • [1] 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, 259(9): 1735-1744. (BAO Cheng-gang. Study on interface behavior of geosynthetics and soil[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 259(9): 1735-1744. (in Chinese))
    [2] ABU-FARSAKH M, CORONEL J, TAO M. Effect of soil moisture content and dry density on cohesive soil geosynthetic interactions using large direct shear tests[J]. Journal of Materials in Civil Engineering, 2007, 19(7): 540-549
    [3] SUBAIDA E A, CHANDRAKARAN S, SANKAR N. Experimental investigations on tensile and pullout behavior of woven coir geotextiles[J]. Geotextiles and Geomembranes, 2008, 26(5): 384-392.
    [4] 徐 超, 廖星樾, 叶观宝, 等. 土工合成材料界面摩擦特性的室内剪切试验研究[J]. 岩土力学, 2008, 29(5): 1285-1289. (XU Chao, LIAO Xing-yue, YE Guan-bao, et al. Research on interface fractional characteristics of geosynthetics by laboratory shear test[J]. Rock and soil Mechanics, 2008, 29(5): 1285-1289. (in Chinese))
    [5] LOPES M L, LADRIRA M. Influence of the confinement, soil density and displacement rate on soil-geogrid interaction[J]. Geotextiles and Geomembranes, 1996, 14(10): 543-554.
    [6] 徐林荣. 筋-土界面参数测试方法合理选择研究[J]. 岩土力学, 2003, 24(3): 458-462. (XU Lin-rong. Research on selection of measuring method of interface parameters between reinforcements and soils[J]. Rock and Soil Mechanics, 2003, 24(3): 458-462. (in Chinese))
    [7] 朱维新. 加筋土结构的性状及破坏机理[J]. 浙江水利科学, 1992, 4: 46-51. (ZHU Wei-xin. Character and damage mechanism of reinforced fill structure[J]. Zhejiang Hydrotechnics, 1992, 4: 46-51. (in Chinese))
    [8] 徐少曼, 洪昌华. 考虑加筋垫层的堤坝下软基稳定分析法[J] 土木工程学报, 2000, 33(4): 88-92. (XU Shao-man, HONG Chang-hual. A stability analysis method for soft subgradeunder embankment considering strengthened cushion[J]. China Civil Engineering Journal, 2000, 33(4): 88-92. (in Chinese))
    [9] 徐少曼, 林瑞良. 提高土工织物加筋效果的新途径[J] 岩土工程学报, 1997, 19(2): 49-55. (XU Shao-man, LIN Rui-liang. Way to improve the effects of geotextile reinforcement[J] Chinese Journal of Geotechnical Engineering, 1997, 19(2): 49-55. (in Chinese))
    [10] 徐少曼, 康进王. 堤坝下软基预应变土工织物加筋效果分析[J] 福建建筑, 1996, 51: 5-7. (XU Shao-man, KANG Jin-wang. Analysis of reinforcement effect of prestrain geosynthetics in soft foundation under dams[J]. Fujian Architecture & Construction, 996, 51: 5-7. (in Chinese))
    [11] GOURE J P. Design of fabrie retaining wall, the displacement method[C]// 3nd International Conference of Geotextiles, 1986.
    [12] 沈珠江. 土工合成物加强软土地基的极限分析(英文)[J] 岩土工程学报, 1998, 20(4): 82-86. (SHEN Zhu-jiang. S Limit analysis of soft ground reinforced by geosynthetics[J]. Chinese Journal of Geotechnical Engineering, 11998, 20(4): 82-86. (in Chinese))
    [13] 朱 湘, 黄晓明. 有限元方法分析影响加筋路堤效果的几个因素[J]. 土木工程学报, 2002, 35(6): 86-92. (ZHU Xiang, HUANG Xiao-ming. Effects of reinforcements on embankment analyzed by finite element method[J]. China Civil Engineering Journal, 2002, 35(6): 86-92. (in Chinese))
    [14] SCHDOSSER F, LONG N T. Recent results in French research on reinforced earth[J]. Construction Division, American Society of Civil Engineering , 1974, 100(co3): 223-237.
    [15] SRIDHARAN A, SINGH H R. Effect of soil parameters on the friction coefficient in reinforced earth[J]. Indian Geotech J, 1988, 18(1): 323-339.
    [16] JTG/T D32—2012 公路土工合成材料应用技术规范[S]. 2012. (JTG/T D32—2012 Technical specifications for application of geosynthetics in highway[S]. 2012. (in Chinese))
    [17] 介玉新, 李广信. 加筋土的计算方法[J]. 水利水电技术, 1995, 30(5): 67-69. (JIE Yu-xin, LI Guang-xin. Development of calculation methods for geosynthetic- reinforced soil[J]. Water Resources and Hydropower Engineering, 1995, 30(5): 67-69. (in Chinese))
    • 相关文章
    • 施引文献
  • 资源附件(0)
计量
  • 文章访问数: 
  • HTML全文浏览量:  0
  • PDF下载量: 
  • 被引次数: 0
出版历程
  • 收稿日期:  2013-06-06
  • 发布日期:  2013-11-24

目录

摘要
HTML全文
    参考文献(17)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回
    网站版权 © 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