Experimental study on the behavior of strip footing on sandy soil bounded by a wall

Fattah, Mohammed Y.; Shlash, Kais T.; Mohammed, Husham A.

doi:10.1007/s12517-014-1564-y

Cited by 18 publications

(7 citation statements)

References 2 publications

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“…Fattah et al carried out numerous research on a diferent type of footing resting on sandy soil. Te parameters considered for this research such as properties of sand as unit weight and angle of internal friction is found to be correct while corelating with this research [10][11][12]. Mahmood et al believed that the skirted footing increases the bearing capacity with a decrease in the settlement and improves the load-settlement behavior of the footing.…”

Section: Introductionsupporting

confidence: 53%

Numerical Study on Load Bearing Capacity of Root‐Caisson Foundation

Jayashree¹,

Sathyapriya²,

Karthik³

et al. 2023

Mathematical Problems in Engineering

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Innovation has been made in the caisson foundation to support a very large structure resting over a soft soil stratum known as the root-caisson foundation. This technique was executed in China-Yangtze River Bridge. The root caisson foundation was first implemented in the Yangtze River bridge and discovered that the root improves soil structure interaction and increases vertical bearing capacity by 100%. In the present research, a numerical study of root-caisson foundation under combined vertical and horizontal loading was performed using ABAQUS software. Analysis was performed by varying the parameters of root caisson such as the inclination of roots (30°, 45°, 60°, and 90°) spacing(S) between the root floors with respect to diameter (D) of the caisson as (0.5°D, 0.6°D, and 0.75°D) with different loading conditions and results were compared with normal traditional caisson with the same length (L) to diameter (D) ratio. From the test results, the load-settlement behavior of caisson is nonlinear for individual vertical, and lateral load tests and also the same for the combined loading conditions. It is found that the root-caisson has a higher load bearing capacity as compared to that of the traditional caisson. Moreover, in combined loading, the load bearing capacity increases considerably, compared with the ultimate vertical and lateral load capacity.

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Section: Introductionsupporting

confidence: 53%

Numerical Study on Load Bearing Capacity of Root‐Caisson Foundation

Jayashree¹,

Sathyapriya²,

Karthik³

et al. 2023

Mathematical Problems in Engineering

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“…in bearing capacity ratio (BCR) relative to that of the unreinforced case was found to be in range of 1.5 to 1.7. In an experimental study on the behavior of a strip footing on sandy soil bounded by walls of different depths and located at different distances from the footing showed that the presence of the wall remarkably affected the bearing capacity due to the increase in soil confinement, leading to an improvement of the bearing capacity in the range of 37% to 59% and a reduction in the vertical settlement ranging from 5 to 160% [27]. Lin, et al [28] studied the response of MICP bio-grout in large-scale application to improve soil-pile interaction and the pile's ability to withstand axial compression [28].…”

Section: Literature Reviewmentioning

confidence: 99%

Development of Single-Phase Microbial Cementation Method and to Investigate its Efficacy on Bearing Capacity, UCS, and Permeability of Sandy Soils

Kulkarni

Nemade²,

Chavan

et al. 2021

J. Eng. Technol. Sci.

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Microbially induced calcite precipitation (MICP) is a method based on collaborative knowledge of microbiology, chemistry and geotechnical engineering. The objective of this study was to investigate the increase of the bearing capacity and the unconfined compressive strength (UCS) as well as the reduction of the permeability of sandy soil using MICP. Experiments were carried out using Bacillus Pasteurii, on three different types of sand. The admixture of bacterial culture and cementation (BCC) solution all-in-one with sand by single-phase injection was applied to induce cementation. Three samples of the selected sand were treated with varied concentrations of BCC solution, ranging from 0.05 to 0.2 L/kg, with a curing period of 3, 7 and 14 days. The test results indicated an enhancement of 55% in UCS for sand treated with a BCC content of 0.05 to 0.2 L/Kg and a reduction of 40% in permeability for untreated sand with an effective diameter of 0.5 mm treated with 0.2 L/kg of BCC solution after 14 days of curing. The results of a plate load test (PLT) on MICP treated sand showed an increase in the ultimate bearing capacity (qu) by about 2.95 to 5.8 times and a 1.7 to 3.31-fold reduction in settlement corresponding to the same load applied on untreated footing. Further investigation of the size and shape of the bearing plate on bearing capacity and settlement was carried out through a plate load test. The higher and more favorable results shown by a rectangular plate compared to a circular plate indicate that the first is preferable.

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“…Zhou et al [9] also conducted centrifuge model tests to simulate the sinking of four caissons under different embedment depths and analyzed the distribution characteristics of earth pressure at ring footing. Fattah et al [10][11][12][13] conducted a series of model tests to study the experimental bearing and settlement behaviors of model ring footing, circular footing, and rectangular resting on reinforced sandy soil subjected to vertical static and cyclic loads.…”

Section: Introductionmentioning

confidence: 99%

Ultimate Bearing Capacity of Ring Foundations Embedded in Undrained Homogeneous Clay

Wang¹,

Zhang²,

Xia³

et al. 2022

Geofluids

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A ring foundation is widely used in bridges, water towers, caissons, and other engineering structures, and its ultimate bearing capacity is one of the significant concerns in engineering design. This paper is aimed at exploring the ultimate bearing capacity of ring foundations embedded in undrained clay. Based on the finite element limit analysis, effects of the inside-to-outside radius ratio, embedment depth ratio, cutting face inclination angle, and face roughness on the vertical ultimate bearing capacity of ring foundations are investigated. The results show that the ultimate bearing capacity of the ring foundation increases gradually with the embedment depth ratio. When the embedment depth ratio D / B reaches a critical value, the bearing capacity tends to be stable, and the critical embedment depth ratio is affected by the inside-to-outside radius ratio of the ring foundation, varying from 0.2 to 0.4. The ultimate bearing capacity of the ring foundation decreases with cutting face inclination angle β . When β ≤ 40 ° , the ultimate bearing capacity tends to be stable, and the bearing capacity is reduced by approximately 30%. The influence of the cutting face inclination angle on the bearing capacity is highly dependent on the roughness of the cutting face.

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Experimental study on the behavior of strip footing on sandy soil bounded by a wall

Cited by 18 publications

References 2 publications

Numerical Study on Load Bearing Capacity of Root‐Caisson Foundation

Numerical Study on Load Bearing Capacity of Root‐Caisson Foundation

Development of Single-Phase Microbial Cementation Method and to Investigate its Efficacy on Bearing Capacity, UCS, and Permeability of Sandy Soils

Ultimate Bearing Capacity of Ring Foundations Embedded in Undrained Homogeneous Clay

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