Performance of Circular Footing on Expansive Soil Bed Reinforced with Geocells of Chevron Pattern

Kumar, Sanjeev; Sahu, Anil Kumar; Naval, Sanjeev

doi:10.28991/cej-2019-03091415

Cited by 7 publications

(4 citation statements)

References 39 publications

(69 reference statements)

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“…The authors had also performed an experimental study to determine the optimum parameters for geocell and jute fibre reinforcement to improve the performance of a circular footing resting on expansive soil. A portion of the findings of this study were published in a research article [9]. Experiments with the test series and the parameters specified in Table 4 were therefore carried out to determine the efficacy of these optimal parameters in controlling the swelling of subgrade soil.…”

Section: Test Proceduresmentioning

confidence: 99%

“…In mechanical stabilization, soil is stabilized by compaction with the inclusion of reinforcement, fibres or other non-biodegradable materials. In past, many studies have shown the inclusion of randomly distributed fibres [4][5][6] and geosynthetics [7][8][9] improve the strength & bearing capacity of expansive soils. Patil [10] described a laboratory method to measure the swelling pressure and an apparatus to carry out the test for remoulded or undisturbed soil samples.…”

Section: Introductionmentioning

confidence: 99%

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Study on the Swelling Behavior of Clayey Soil Blended with Geocell and Jute Fibre

2021

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Expansive soils like clays undergo swelling that can both be detrimental and acceptable in different applications. In the Northern part of India, especially Delhi region, natural soils containing clays & clayey sands support most of the buildings. Mechanically stabilized clays mixed with sand are used for local earthwork construction such as roads and landfills. Exact understanding of the swelling behaviour of such soils is a pre-requisite before the start of any construction projects. In this paper the swelling behaviour of clayey soil reinforced with geocell & Jute fibres has been presented. The laboratory investigations include one dimensional swelling tests using California Bearing Ratio (CBR) mould to study the swelling properties for different mix proportions. The maximum decrease in swelling potential of Geocell reinforced specimens was observed at fibre content of 0.80 percent and 40mm fibre length, beyond which increase in the swelling potential and swelling pressure has been observed. With this optimal reinforcement, a reduction of 71.24 percent in swelling and 41.10 percent in swelling pressure has been observed as compared to unreinforced soils. The study provides a solution towards the treatment of expansive soils before starting any construction activity over such soils and a step towards mitigating disasters related to infrastructure facilities grounded on expansive soils. Doi: 10.28991/cej-2021-03091728 Full Text: PDF

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Section: Test Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the Swelling Behavior of Clayey Soil Blended with Geocell and Jute Fibre

2021

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“…Therefore, the geocells provide both the riverbank slope lateral and vertical resistance under external loads on the whole. Assuming the lateral restraint stress (∆σ 3 ) is determined by the deformation behavior of the soil inside the geocells and the mechanical properties of the geocell material [31], and using membrane theory proposed by Henkel and Gilbertd et al [32][33][34], ∆σ 3 can be expressed as…”

Section: Theoretical Model Developmentmentioning

confidence: 99%

Modeling Riverbank Slope Reinforcement Using Anti-Slide Piles with Geocells

Liu

Zhou

et al. 2021

JMSE

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Geocells are increasingly used in engineering applications, but the design of riverbank slope reinforcements that use only geocells limits reinforcement performance. Moreover, the design and use of anti-slide piles with geocells are mainly based on experiences that are unsupported by theoretical models. In this paper, by combining the confinement effect and vertical action mechanism of geocells, the horizontal friction mechanism of the geocell layer and the vertical support mechanism of piles, a theoretical model of riverbank slope reinforced by anti-slide piles with geocells was constructed. In addition, to describe the mechanical behavior of a riverbank slope reinforced by anti-slide piles with geocells, the slip-resisting mechanism of the anti-slide pile with interaction between geocells and their internal filler is considered in the model. Furthermore, to investigate the influence of changes in water level on riverbank slope stability, the developed model takes into account settlement, lateral displacement, pile bending moment and pile axial force. The model predications were validated by the field measurement data. The results from a series of parametric studies show that the use of anti-slide pile and geocells can effectively reduce the settlement and the lateral displacement of a riverbank slope. The developed model could contribute to an optimal design of anti-slide pile with geocells for enhancing the stability of a riverbank slope.

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“…Research was conducted by Kumar et al [8] on the behavior of expansive soil reinforced with geocell and chevron patterns. The geocell mattress placement depth beneath the footing base, the geocell pocket size, the height of the geocell mattress, and the geocell pocket aspect ratio were among the several characteristics taken into consideration in this experimental work.…”

Section: Introductionmentioning

confidence: 99%

Studying the Behavior of Expansive Soil Reinforced by Micropiles

Al-Gharbawi,

Najemalden,

Fattah

2024

Civ Eng J

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Expansive soil is a form of soil that can expand and contract, changing its volume. Montmorillonite, a mineral with the ability to dissolve in water, makes up the majority of these kinds of soils, and by increasing the volume of the soil, it causes the soil to heave. Expansive soils could be a substantial concern for engineered buildings due to their capacity to adjust to seasonal variations by contracting or expanding moisture content. Many researchers focused on soils that were swollen and looked at how they behaved as well as how they could be improved. In this study, the work depends on inserting micro-piles with different depths and configuration widths to investigate which depth and configuration can be obtained to improve the bearing capacity of foundations on expansive soil. The main purpose of this study is to reinforce the expansive soil with micro-piles with different depths (1B, 2B, and 3B) and different configuration widths (under footing only, 1B and 2B). It was concluded that the soil reinforced with micro-piles improved the load-bearing capacity of the expensive soil and decreased the swell pressure. The increasing depth of the micropiles 2B to 3B (B is the width/diameter of the foundation) can increase the bearing capacity by just 6%; therefore, increasing the depth beyond 2B is not beneficial. Also, the increase in width of the configuration of the micro piles from 1B to 2B increases the bearing capacity by just 4%; therefore, the increase in width greater than 1B is not valid. Doi: 10.28991/CEJ-2024-010-01-017 Full Text: PDF

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Performance of Circular Footing on Expansive Soil Bed Reinforced with Geocells of Chevron Pattern

Cited by 7 publications

References 39 publications

Study on the Swelling Behavior of Clayey Soil Blended with Geocell and Jute Fibre

Study on the Swelling Behavior of Clayey Soil Blended with Geocell and Jute Fibre

Modeling Riverbank Slope Reinforcement Using Anti-Slide Piles with Geocells

Studying the Behavior of Expansive Soil Reinforced by Micropiles

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