English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 51776/87004 (60%)
造訪人次 : 8384556      線上人數 : 69
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/96556


    題名: Behavior of nonwoven-geotextile-reinforced sand and mobilization of reinforcement strain under triaxial compression
    作者: Nguyen, M. D.;Yang, K. H.;Lee, S. H.;Wu, C. S.;Tsai, M. H.
    貢獻者: 淡江大學土木工程學系
    關鍵詞: Geosynthetics;Triaxial test;Geotextile-reinforced sand;Mobilized reinforcement tensile load
    日期: 2013-05
    上傳時間: 2014-03-10 10:26:11 (UTC+8)
    出版者: London: I C E Publishing
    摘要: Laboratory triaxial compression tests were conducted to investigate the stress–strain–volumetric responses of geotextile-reinforced sand and the mobilization and distribution of reinforcement strain/loads and soil–geotextile interface shear stress within reinforced soil. Geotextile-reinforced sand specimens were tested while varying the confining pressures and number of geotextile reinforcement layers. A digital image-processing technique was applied to determine residual tensile strain of the reinforcements after tests and to estimate reinforcement tensile loads. Experimental results indicate that the geotextile reinforcement enhanced peak shear strength and axial strain at failure, and reduced loss of post-peak shear strength. The reinforced specimen had higher shear strength when compared with that of unreinforced soil after deforming by 1-€“3% of axial strain, which indicates that the geotextile requires a sufficient deformation to mobilize its tensile force to improve the shear strength of reinforced soil. For each reinforcement layer, mobilized tensile strain peaked at the center of the reinforcement and decreased along the radial direction, while the interface shear stress was zero at the center and peaked at a distance of 0.5–07 reinforcement radius from the center. The mobilized tensile strain of reinforcement increases as confining pressure and number of reinforcement layers increase. This work also demonstrates that the strength difference between reinforced and unreinforced soil was strongly correlated with the sum of maximum mobilized tensile forces of all reinforcement layers, indicating that mobilized tensile force of reinforcements directly improved the shear strength of reinforced soil. Last, a number of analytical models to predict peak shear strength of reinforced soil are verified experimentally. This verification demonstrates that mobilized tensile force rather than ultimate tensile strength can be used in analytical models.
    關聯: Geosynthetics International 20(3), pp.207-225
    DOI: 10.1680/gein.13.00012
    顯示於類別:[土木工程學系暨研究所] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML170檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋