Effects of the drum height, joint type and bolts on the bearing capacity of composite multi-drum stone columns under static and earthquake loads

2021 ◽  
Vol 237 ◽  
pp. 112230
Author(s):  
A. Buzov ◽  
J. Radnić ◽  
N. Grgić
Keyword(s):  
Bearing Capacity ◽  
Stone Columns ◽  
Earthquake Loads

Bearing Capacity of Group of Stone Columns with Granular Blankets

2017 ◽  
Vol 17 (2) ◽  
pp. 253-263 ◽  
Author(s):  
Javad Nazariafshar ◽  
Nima Mehrannia ◽  
Farzin Kalantary ◽  
Navid Ganjian
Keyword(s):  
Bearing Capacity ◽  
Stone Columns ◽  
Group Of Stone Columns

scholarly journals Estimation of bearing capacity of floating group of stone columns

2017 ◽  
Vol 20 (3) ◽  
pp. 1166-1172 ◽  
Author(s):  
Mohammed Y. Fattah ◽  
Mohammed A. Al-Neami ◽  
Ahmed Shamel Al-Suhaily
Keyword(s):  
Bearing Capacity ◽  
Stone Columns ◽  
Group Of Stone Columns

Failure modes and bearing capacity of strip footings on soft ground reinforced by floating stone columns

2017 ◽  
Vol 12 (5) ◽  
pp. 1089-1103 ◽  
Author(s):  
Haizuo Zhou ◽  
Yu Diao ◽  
Gang Zheng ◽  
Jie Han ◽  
Rui Jia
Keyword(s):  
Bearing Capacity ◽  
Failure Modes ◽  
Stone Columns ◽  
Soft Ground ◽  
Strip Footings

Seismic Bearing Capacity of Strip Footings on Ground Reinforced by Stone Columns Using Upper-Bound Solutions

2020 ◽  
Vol 20 (9) ◽  
pp. 06020024
Author(s):  
Gang Zheng ◽  
Boyang Xia ◽  
Haizuo Zhou ◽  
Jiapeng Zhao ◽  
Xiaoxuan Yu ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Upper Bound ◽  
Stone Columns ◽  
Seismic Bearing Capacity ◽  
Strip Footings

Analytical Study of Load-Settlement Behavior of Soil Treated with Stone Columns have Different Sectional Shape

2020 ◽  
Vol 857 ◽  
pp. 319-327
Author(s):  
Moataz A. Al-Obaydi ◽  
Zeena A. Al-Kazzaz
Keyword(s):  
Bearing Capacity ◽  
Soft Soil ◽  
Engineering Properties ◽  
Stone Columns ◽  
Equivalent Diameter ◽  
Element Analysis ◽  
Cross Sectional ◽  
Treated Soil ◽  
Almost All ◽  
Sectional Shape

Stone columns have been used widely to improve the engineering properties of the weak soil. Most of the previous works considered a circular section for the stone columns. In the present study, finite element analysis has been carried out to investigate the effect of stone columns shape and length on the settlement and bearing capacity of soft soil. Accordingly, three types of cross sectional shape for stone columns have been selected which they are circular, rectangular, and square sections with equivalent area. Various length of columns are adopted with diameter of 0.75m that achieved length to diameter or equivalent diameter ratios (L/d=2, 4, 6, 8, and 10) of columns spacing (S/d=3). The results show that the stone columns has tangible effects on the settlement of the soil while has minor effects on the bearing capacity. The settlement of the treated soil with stone columns have L/d=2, reduces by 18.0, 17.3, and 19.3% for circular, rectangular , and square sections respectively. With increasing length of the columns to L/d=10, further reductions in the settlement obtained of (27.1, 28.1, and 27.0%). Bearing capacity of the soil increased slightly with length of the stone columns. Almost all cross sectional shapes of the columns give bearing capacity about same. The increased in the bearing capacity of the treated soil with stone columns have L/d=2, not exceeded 10% for all sectional types. The average increments in bearing capacity when L/d=10 are 12 and 15% at settlement 50 and 100mm respectively. Insignificant changes in bearing capacity upon increasing length of columns from L/d=2 to 10 of maximum 5%. The plastic zone recedes with the increasing length of the stone columns. Finally, from the results obtained, it can be concluded that the stone columns shape has negligible effects on the settlement and bearing capacity of the soil.

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.

Bearing Capacity of a Group of Stone Columns in Soft Soil

2015 ◽  
Vol 15 (2) ◽  
pp. 04014043 ◽  
Author(s):  
M. Etezad ◽  
A. M. Hanna ◽  
T. Ayadat
Keyword(s):  
Bearing Capacity ◽  
Soft Soil ◽  
Stone Columns ◽  
Group Of Stone Columns
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