Combined Encased Stone Column and Vacuum Consolidation Technique for Soft Clay Improvement

2018 ◽  
pp. 169-177
Author(s):  
Ganesh Kumar
Keyword(s):  
Soft Clay ◽  
Stone Column ◽  
Vacuum Consolidation

Effect of stone column installation on soft clay behavior

2018 ◽  
pp. 1-13 ◽  
Author(s):  
H. F. Shehata ◽  
T. M. Sorour ◽  
A. L. Fayed
Keyword(s):  
Soft Clay ◽  
Stone Column

scholarly journals Performance of geosynthetic-encased stone column-improved soft clay under vertical cyclic loading

2019 ◽  
Vol 59 (6) ◽  
pp. 1875-1890 ◽  
Author(s):  
Chungsik Yoo ◽  
Qaisar Abbas
Keyword(s):  
Cyclic Loading ◽  
Soft Clay ◽  
Stone Column

EFFECT OF REPLACING CRUSHED STONE IN STONE COLUMNS BY WASTE MATERIAL ON SOIL IMPROVEMENT RATIO

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Nahla Mohammed Salim ◽  
Shatha Hasan ◽  
Kawther Al-Soudany
Keyword(s):  
Bearing Capacity ◽  
Soft Clay ◽  
Soil Improvement ◽  
Waste Material ◽  
Stone Columns ◽  
Crushed Stone ◽  
Stone Column ◽  
University Of Technology ◽  
The University ◽  
Building Demolition

Many researchers’ studies have shown that stone column is the best material to use to improve the bearing capacity of clayey soils. There are millions of waste volumes resulting from daily human activities. This excess waste leads to disposal problems and also causes environmental contamination and health risks. Demolished concrete is such one waste material that is produced from building demolition in Baghdad, Iraq. This paper describes experimental work conducted at the University of Technology that was carried out to investigate the improved bearing capacity of soft clay using crushed stone, followed by replacing crushed stone with concrete waste with the same relative density and grain size. The replacement was carried using waste concrete with different percentages corresponding to 25%, 50%, 75%, and 100%. The main conclusion drawn is that the bearing capacity increased to 119% by using crushed stone column, while the bearing capacity increased to 155% by using 100% of crushed concrete waste.

scholarly journals 3D FE Analysis of an Embankment Construction on GRSC and Proposal of a Design Method

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Yogendra K. Tandel ◽  
Chandresh H. Solanki ◽  
Atul K. Desai
Keyword(s):  
Carrying Capacity ◽  
Design Method ◽  
Soft Clay ◽  
Deformation Modulus ◽  
Diameter Ratio ◽  
Major Influence ◽  
Stone Column ◽  
Load Carrying Capacity ◽  
Lateral Deformation ◽  
Load Carrying

Stone column is often employed for strengthening of an embankment seated on deep soft clay. But in very soft clay having undrained shear strength less than or equal to 15 kPa, stone column may not derive adequate load carrying capacity and undergo large lateral deformation due to inadequate lateral confinement. In such circumstances, reinforcement to individual stone column by geosynthetics enhances load carrying capacity and reduces lateral deformation. This paper addresses parametric study on behaviour of embankment resting on Geosynthetic Reinforced Stone Column (GRSC) considering parameters such as stone column spacing to diameter ratio, deformation modulus of stone column material, geosynthetic stiffness, thickness of soft clay, and height of embankment by 3D numerical analysis. Finally, equation for Settlement Improvement Factor (SIF), defined as ratio between settlement of embankment without treatment and with geosynthetic reinforced stone column, is proposed that correlates with the major influence parameters such as stone column spacing to diameter ratio, deformation modulus of soft clay, and geosynthetic stiffness.

Centrifuge modeling of geosynthetic-encased stone column-supported embankment over soft clay

2021 ◽  
Vol 49 (1) ◽  
pp. 210-221
Author(s):  
Jian-Feng Chen ◽  
Liang-Yong Li ◽  
Zhen Zhang ◽  
Xu Zhang ◽  
Chao Xu ◽  
...  
Keyword(s):  
Soft Clay ◽  
Centrifuge Modeling ◽  
Stone Column
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