Direct shear tests on geosynthetic-encased granular columns

被引：73
|
作者：
Mohapatra, Sunil Ranjan [1 ]
Rajagopal, K. [1 ]
Sharma, Jitendra [2 ]
机构：
[1] Indian Inst Technol Madras, Dept Civil Engn, Madras 600036, Tamil Nadu, India
[2] York Univ, Dept Civil Engn, Toronto, ON M3J 1P3, Canada
来源：
GEOTEXTILES AND GEOMEMBRANES | 2016年 / 44卷 / 03期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Geosynthetics; Granular column; Geosynthetic encasement; Soft clay; Lateral loading; Direct shear tests; STONE COLUMNS; MODEL TESTS; BEHAVIOR;
D O I：
10.1016/j.geotexmem.2016.01.002
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
The behaviour of geosynthetic-encased granular columns (EGC) under vertical loads is reasonably well understood. To date, very little research has been done to understand the behaviour of EGCs subjected to lateral loads. The main objective of this paper is to quantify the effect of encasement on the lateral load capacity of EGCs. Several direct shear tests are performed on granular columns with and without encasement in a shear box having plan dimensions of 305 x 305 mm. Tests are conducted at different normal pressures varying from 15 kPa to 75 kPa. Two different diameters of columns, three types of encasements and three different plan configurations are studied in this research work. The results from these tests are discussed in terms of the increase in the shear strength due to geosynthetic encasement and the strength envelopes for understanding the influence of the encasement. Different types of failures observed in the granular columns (with and without encasement) subjected to lateral load are also discussed. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：396 / 405
页数：10
相关论文
共 50 条
  • [41] Calculation Model for Stress Concentration Ratio of Composite Foundation Reinforced by Geosynthetic-encased Stone Columns
    Tan X.
    Feng L.-J.
    Zhao M.-H.
    Jin Y.-X.
    Zhongguo Gonglu Xuebao/China Journal of Highway and Transport, 2019, 32 (09): : 42 - 50
  • [42] Model tests on soil foundation reinforced by geosynthetic encased granular columns subjected to reverse fault movement
    Chiang, J.
    Yang, K. -H.
    Zornberg, J. G.
    Michel, E. E.
    Wu, C. -W.
    GEOSYNTHETICS: LEADING THE WAY TO A RESILIENT PLANET, 12ICG 2023, 2024, : 1108 - 1114
  • [43] Shaking table tests on geosynthetic encased columns in soft clay
    Cengiz, C.
    Guler, E.
    GEOTEXTILES AND GEOMEMBRANES, 2018, 46 (06) : 748 - 758
  • [44] Visualization of bulging development of geosynthetic-encased stone column
    Zhou, Yang
    Kong, Gangqiang
    Peng, Huaifeng
    Li, Chunhong
    Qin, Hongyu
    GEOMECHANICS AND ENGINEERING, 2019, 18 (03) : 329 - 337
  • [45] Model tests on geosynthetic-encased construction concrete debris column in fly ash fill
    Bhatia, Rajeev
    Kumar, Arvind
    INNOVATIVE INFRASTRUCTURE SOLUTIONS, 2019, 4 (01)
  • [46] Analysis of Railway Embankment Supported with Geosynthetic-Encased Stone Columns in Soft Clays: A Case Study
    Tanmay D. Deshpande
    Shivesh Kumar
    Goushya Begum
    S. A. K. Basha
    B. Hanumantha Rao
    International Journal of Geosynthetics and Ground Engineering, 2021, 7
  • [47] Undrained stability analysis of embankments supported on geosynthetic encased granular columns
    Mohapatra, S. R.
    Rajagopal, K.
    GEOSYNTHETICS INTERNATIONAL, 2017, 24 (05) : 465 - 479
  • [48] Model tests on geosynthetic-encased construction concrete debris column in fly ash fill
    Rajeev Bhatia
    Arvind Kumar
    Innovative Infrastructure Solutions, 2019, 4
  • [49] Shear performance of geosynthetic-encased stone column based on 3D-DEM simulation
    Zhang, Ling
    Peng, Bocheng
    Xu, Zeyu
    Zhou, Shuai
    COMPUTERS AND GEOTECHNICS, 2022, 151
  • [50] Analysis of Railway Embankment Supported with Geosynthetic-Encased Stone Columns in Soft Clays: A Case Study
    Deshpande, Tanmay D.
    Kumar, Shivesh
    Begum, Goushya
    Basha, S. A. K.
    Rao, B. Hanumantha
    INTERNATIONAL JOURNAL OF GEOSYNTHETICS AND GROUND ENGINEERING, 2021, 7 (02)
12345