Large-scale load capacity tests on a geosynthetic encased column

Alkhorshid, Nima Rostami; Araújo, Gregório Luís Silva; Palmeira, Ennio M.; Zornberg, Jorge G.

doi:10.1016/j.geotexmem.2019.103458

Cited by 45 publications

(8 citation statements)

References 39 publications

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“…It is also noticeable that the values of load capacity of the RCDW-encased columns were very similar to those of the traditional natural infill materials, which highlights the potential use of RCDW as infill material in encased granular columns for the stabilisation of embankments on soft soils. Additional information on this type of application of RCDW can be found in Alkshorshid [63] and Alkhorshid et al [63][64][65].…”

Section: Recycled Construction and Demolition Wastes In Geosynthetic-encased Granular Columnsmentioning

confidence: 99%

Sustainable Solutions with Geosynthetics and Alternative Construction Materials—A Review

2021

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Geosynthetics have proven to provide sustainable solutions for geotechnical and geoenvironmental problems when used with natural materials. Therefore, the expected benefits to the environment when geosynthetics are associated with unconventional or alternative construction materials will be even greater. This paper addresses the use of geosynthetics with wasted materials in different applications. The potential uses of alternative materials such as wasted tires, construction and demolition wastes, and plastic bottles are presented and discussed considering results from laboratory and field tests. Combinations of geosynthetics and alternative construction materials applied to reinforced soil structures, drainage systems for landfills, barriers, and stabilisation of embankments on soft grounds are discussed. The results show the feasibility of such combinations, and that they are beneficial to the environment and in line with the increasing trend towards a circular economy and sustainable development.

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Section: Recycled Construction and Demolition Wastes In Geosynthetic-encased Granular Columnsmentioning

confidence: 99%

Sustainable Solutions with Geosynthetics and Alternative Construction Materials—A Review

2021

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“…Pile deformation data of model tests from references are collected and listed in Table 3. The radial strain of the column is calculated from Equation (2).…”

Section: Radial Deformation Of Pilesmentioning

confidence: 99%

Statistical Analysis on the Static Characteristics of the Geosynthetic Encased Stone Column

Yang

Wang

et al. 2021

Preprint

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The geosynthetic encased stone column is made of stone column encased with geosynthetic encasement. The geosynthetic encased stone column is often used for foundation treatment of roadbeds, dams, buildings and other structures. At present, a series of new developments have been made in the researches of bearing capacity, stress concentration ratio and deformation of the geosynthetic encased stone column. This paper statistically analyzes the three important static characteristics of the geosynthetic encased stone column.

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“…Demir and Sarici [21] in a laboratory work and numerical analysis explored the behavior of stone column with or without geogrid in clayey soil. Alkhorshid et al [22] tested the performance of encased columns constructed on a very soft soil using three woven geotextiles and different column fill materials. The results showed that breakage of column filling materials would affect the load-settlement behavior of gravel and recycled waste columns.…”

Section: Introductionmentioning

confidence: 99%

Large-Scale Experimental Study on Collapsible Soil Improvement Using Encased Stone Columns

Bahrami

Marandi

2021

IJE

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The aim of this study was to improve the characteristics of natural collapsible soils using the geogridencased stone column technique. For this purpose, 20 large-scale specimens of stone columns were prepared using rigid metal cylinders with a diameter of 308 mm and a height of 97 to 154 mm according to the unit cell theory. The aspect ratio was 10 to 25%. For the occurrence of bulging failure, the height of the stone columns was considered six times the diameter. The stone columns were encased with geogrids of varying stiffness from 80 to 200 kN/m. The soil around the stone column inside the unit cell was compacted to similar site conditions. Loading was applied similar to the test, which determines the soil collapsibility potential while the specimens were being inundated from the bottom of the metal cylinder by a water feeding system. During loading, the vertical displacements of the stone columns were measured at two locations on the loading plate. The results showed that the columns settlement due to inundation diminished by increasing the stiffness of the encased stone columns and aspect ratio. The optimum aspect ratio was approximately 15%. Encasement of the stone columns increased the lateral pressure in the collapsible soil and prevented the collapse of the stone column. The settlement values of stone columns were compared with a settlement prediction model and showed a good agreement. The data obtained in this study can be used as a practical method to improve natural collapsible soils during inundation.

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Large-scale load capacity tests on a geosynthetic encased column

Cited by 45 publications

References 39 publications

Sustainable Solutions with Geosynthetics and Alternative Construction Materials—A Review

Sustainable Solutions with Geosynthetics and Alternative Construction Materials—A Review

Statistical Analysis on the Static Characteristics of the Geosynthetic Encased Stone Column

Large-Scale Experimental Study on Collapsible Soil Improvement Using Encased Stone Columns

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