Performance of geosynthetic-reinforced granular piles in soft clays: Model tests and numerical analysis

被引：45

作者：

Hasan, Murtaza ^{[1
]}

Samadhiya, N. K. ^{[1
]}

机构：

[1] Indian Inst Technol Roorkee, Dept Civil Engn, Roorkee 247667, Uttar Pradesh, India

来源：

COMPUTERS AND GEOTECHNICS | 2017年 / 87卷

关键词：

Stone columns; Geotextile; Geogrid; Plaxis; 3D; Soft clays; Numerical analysis; ENCASED STONE COLUMNS; CONSOLIDATION;

D O I：

10.1016/j.compgeo.2017.02.016

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The laboratory model tests and numerical analyses have been performed on reinforced granular piles installed in very soft clay. The granular piles were reinforced with geosynthetic in the form of vertical encasement, horizontal strips and combined vertical-horizontal reinforcement. The short term displacement control model tests were carried out either only a granular pile loaded or with an entire area loaded. The laboratory results in the form of vertical load intensity-settlement behaviour were compared with that obtained from FEM software, PLAXIS 3D. The results indicated significant improvement in ultimate load intensity and stiffness of treated ground due to inclusion of geosynthetic. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：178 / 187

页数：10

共 36 条

[11] Failure mechanism of geosynthetic-encased stone columns in soft soils under embankment [J].

Chen, Jian-Feng ;

Li, Liang-Yong ;

Xue, Jian-Feng ;

Feng, Shou-Zhong .

GEOTEXTILES AND GEOMEMBRANES, 2015, 43 (05) :424-431

[12] Influence of geosynthetic encasement on the performance of stone columns floating in soft clay [J].

Dash, Sujit Kumar ;

Bora, Mukul Chandra .

CANADIAN GEOTECHNICAL JOURNAL, 2013, 50 (07) :754-765

[13] Bearing capacity of geosynthetic encased stone columns [J].

Ghazavi, Mahmoud ;

Afshar, Javad Nazari .

GEOTEXTILES AND GEOMEMBRANES, 2013, 38 :26-36

[14] Improvement of soft soils using geogrid encased stone columns [J].

Gniel, Joel ;

Bouazza, Abdelmalek .

GEOTEXTILES AND GEOMEMBRANES, 2009, 27 (03) :167-175

[15]

Greenwood D.A, 1970, P GROUND ENG C I CIV, P11

[16] Simplified method for consolidation rate of stone column reinforced foundations [J].

Han, J ;

Ye, SL .

JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, 2001, 127 (07) :597-603

[17] The performance of a sand column internally reinforced with horizontal reinforcement layers [J].

Hong, Yung-Shan ;

Wu, Cho-Sen .

GEOTEXTILES AND GEOMEMBRANES, 2013, 41 :36-49

[18]

Hughes J.M.O., 1976, P GROUND TREATM DEEP, P32

[19]

Hughes J.M.O., 1974, P I CIVIL ENG GROUND, V5, P42, DOI DOI 10.1016/0148-9062(74)90643-3

[20]

Indian Standards (IS), 2003, IS15284 1

← 1 2 3 4 →