Improvement of Bearing Capacity of Shallow Foundation on Geogrid Reinforced Silty Clay and Sand

Kolay, Prabir K.; Kumar, Sanjeev; Tiwari, D.

doi:10.1155/2013/293809

Cited by 54 publications

(24 citation statements)

References 28 publications

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“…The Open Access Journal of Science and Technology Figure 4: Soil classification scale based on particle size of local earth materials [11].…”

Section: Results Of Soil Classification Testmentioning

confidence: 99%

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Shrinkage Module of Soil Samples with Different Cement Content

Sabry¹,

Mandalawi²,

Sabry³

2017

The Open Access Journal of Science and Technology

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Abstract. The differences in soil's body mass during shrinkage over time have changes in soil physical properties which provide an important reason to check the design of underground foundations in expansive soils. In this paper, a state-of-art of the soil heat stress-strain relationship prediction methods is checked using soil engineering laboratory experiments and Matlab R2013b numerical modelling. The shrinkage of soils with different cement content of (0%, 2%, 4%, 6% and 8%) with the same water content of 20 percent in room temperature for 24 hours, are critically reviewed in terms of their predictive shrinkage along with their strengths and flexural behaviour. The review highlights the prediction methods present to determine the effect of heat stress on the shrinkage of soil samples with different cement content after classifying the soils into clay, silt and sand depending on their particle size using sieve and hydrometer experiments. The results of the soil engineering laboratory experiments showed that as the cement content increases, the shrinkage of soil decreases as a result of increased elasticity in soil. The numerical analysis using finite element method in Matlab R2013b shows that as the cement content increases the displacement in the soil sample decreases and that the soil sample with 8% cement content has more resistance to shrinkage and less displacement than the soil with 6% cement, which has less resistance to heat stresses and more displacement.

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“…The Open Access Journal of Science and Technology Figure 4: Soil classification scale based on particle size of local earth materials [11].…”

Section: Results Of Soil Classification Testmentioning

confidence: 99%

“…When supporting lightly loaded structures, the effect of significant changes in shrinkage of soils with high shrinkswell potential can be severe [20]. Hence, it is important to provide analysis to reliably estimate the volume change behaviour of soils with different cement content in field [11].…”

Section: Introductionmentioning

confidence: 99%

Shrinkage Module of Soil Samples with Different Cement Content

Sabry¹,

Mandalawi²,

Sabry³

2017

The Open Access Journal of Science and Technology

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“…where 15 is the settlement of the unreinforced footing and is the settlement of the reinforced footing at the footing pressure of unreinforced one having a settlement value of 15 . Figures 14 and 15 show the comparison of PCS factors with respect to the footing with granular fill (0.50-(0.75 ) and 0.75-(0.75 )).…”

Section: Series IIImentioning

confidence: 99%

“…The test results had shown that use of granular fill and geogrid for reinforced soil footings (RSF) has considerable effects on the subgrade modulus and bearing capacity. Very recently Kolay et al [15] investigated the improvement in the bearing capacity of silty clay soil with thin sand layer on top and placing geogrids at different depths. The test results revealed that the bearing capacity for the soil increases with the increase in number of geogrid layers.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Effects of Geogrid Reinforced Granular Fill on the Behaviour of Static Liquefaction

Hemalatha

Mahendran

Prabhu

2014

Advances in Materials Science and Engineering

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The experimental investigation on the effects of granular fill and geogrid reinforced granular fill on the behaviour of the static liquefaction potential of the subsoil is reported in this study. A series of plate load test were carried out with different thickness of the granular fill, number of geogrid layers, and size/dimension of the footing. The test results were presented in terms of bearing capacity and subgrade modulus for the settlement ofδ10,δ15, andδ20. The experimental results revealed that the introduction of granular fill significantly increases the bearing capacity and effectively control the settlement behaviour of the footing. The introduction of geogrid in granular fill enhanced the Percentage of Control in Settlement and Bearing Capacity Ratio by a maximum of 328.54% and 203.41%, respectively. The introduction of geogrid in granular fill interrupts the failure zone of the granular fill and enhances the subgrade modulus of the footing by a maximum of 255.55%; in addition subgrade modulus of the footing was increased with an increase in the number of geogrid layers. Based on the test results it is suggested that the footing with large size has beneficial improvement on the reinforced granular fill.

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“…Many types of products (geogrid, geotextile, geocell, geomebrane, etc.) are available in engineering process .Each product is designed to solve a particular range of civil engineering problems [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Study Numerical Simulation of Stress-Strain Behavior of Reinforced Concrete Bar in Soil using Theoretical Models

2019

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Nonlinear analysis for reinforced concrete members (R.C.) with two types of bars also with unsaturated and saturated soils was used to represent the models. To control the corrosion in the steel bar that used in R.C. member and decrease the cost, the geogrid with steel bar reinforcement are taken in this study to determine the effect of load-deflection and stress-strain relationships. The finite element method is used to model the R.C. member, bars and soil. A three-dimensional finite element model by ABAQUS version 6.9 software program is used to predict the load versus deflection and stress versus strain response with soil. The results for the model in this study are compared with the experimental results from other research, and the results are very good. Therefore, it was concluded that the models developed in this study can accurately capture the behavior and predict the load-carrying capacity of such R.C. members with soil and the maximum stresses with strains. The results show plastic strain values in the R.C. member with saturated soil are larger than their values in unsaturated soil about (54%, 58%, and 55% and 52%) when the geogrid ratios are (without geogrid, 60%, 40% and 20%) respectively, with the same values of stresses.

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Improvement of Bearing Capacity of Shallow Foundation on Geogrid Reinforced Silty Clay and Sand

Cited by 54 publications

References 28 publications

Shrinkage Module of Soil Samples with Different Cement Content

Shrinkage Module of Soil Samples with Different Cement Content

Prediction of Effects of Geogrid Reinforced Granular Fill on the Behaviour of Static Liquefaction

Study Numerical Simulation of Stress-Strain Behavior of Reinforced Concrete Bar in Soil using Theoretical Models

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