Bearing capacity and deformation behavior of rigid strip footings on coral sand slopes

Luo, Zhao-gang; Ding, Xuanming; Ou, Qiang; Fang, Hua-qiang

doi:10.1016/j.oceaneng.2022.113317

Cited by 18 publications

(3 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Once the top layer is replaced by biomodified soil, the foundation soil will behave like a layered soil with top and bottom both layer as a sand. The bearing capacity of the layered soil has been calculated by using the bearing capacity equation for layered soil as in Eq (1).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Bearing capacity and the settlement of foundation on biomodified coastal soil

Shamshad Alam,

Anhar Yousuf Wani

2024

World J. Adv. Eng. Technol. Sci.

View full text Add to dashboard Cite

Construction of the foundation on the marine the soil deposit is susceptible to excessive settlement and the construction of foundation is difficult. Although, the most common practice is to construct the raft foundation in these regions even for the low-rise building, excessive settlement can be observed in several building. So, in the present study, laboratory investigations have been done on the marine soil by modifying it with two different type of biopolymer such as Guar gum and Xanthan gum. The geotechnical properties of the soil modified with 1% and 1.5% biopolymer has been evaluated and the obtained properties has been used for settlement analysis. During the settlement analysis, the foundation soil model has been created as layered soil because the top layer has been replaced by biomodified soil. Several combi-nations have been created by varying the thickness of modified soil layer and the type and percentage of modifying agent. The settlement analysis has been performed in the settle 3D software and the biopolymer modification of soil has been found effective in controlling the foundation settlement.

show abstract

Section: Methodsmentioning

confidence: 99%

“…Due to the soil condition, commonly raft foundations are used which make the structure uneconomical. Several researchers have studied the bearing capacity of the coastal soil deposits [1,2] along with the several performed numerical study [3,4]. Further, several researchers have studied the bearing capacity of the modified ground [5,6].…”

Section: Introductionmentioning

confidence: 99%

Bearing capacity and the settlement of foundation on biomodified coastal soil

Shamshad Alam,

Anhar Yousuf Wani

2024

World J. Adv. Eng. Technol. Sci.

View full text Add to dashboard Cite

show abstract

“…Luo Zhaogang conducted a series of indoor triaxial compression tests to analyze the influence of geogrid reinforcement layers, initial moisture content, and perimeter pressure on the strength and deformation characteristics of reinforced coral sand [18]. Cai, Y. et al performed large-scale triaxial tests under graded cyclic loading to explore the dynamic properties and mechanisms of geogrid-reinforced rubber crushed stone composites [19].…”

Section: Introductionmentioning

confidence: 99%

Triaxial Test and Discrete Element Numerical Simulation of Geogrid-Reinforced Clay Soil

Wang,

Hu,

Liu

et al. 2024

Buildings

View full text Add to dashboard Cite

Indoor triaxial tests on geogrid-reinforced clay elucidate the macroscopic changes in soil strength indices post-reinforcement, yet the underlying mechanisms of strength enhancement require further investigation. By conducting indoor triaxial tests and establishing a corresponding discrete element numerical model, we can delve into the fine-scale mechanisms of geogrid-reinforced soil. This includes analyzing changes in fine-scale parameters such as porosity, the coordination number, and contact stress between soil particles. The findings suggest that an increase in the number of geogrid reinforcement layers leads to a more pronounced improvement in peak strength and cohesion, albeit with minimal impact on the internal friction angle of the specimens. Furthermore, analysis of the triaxial test curves of reinforced soils indicates that the stress–strain relationship adheres to the Duncan–Chang model. Parameters derived from this model have been validated against experimental data, confirming their accuracy. The discrete element model was used to analyze the variations in fine-scale parameters such as porosity and coordination number. It revealed that reinforcement reduces the fluctuation amplitude of porosity and significantly increases the number of particle contacts, resulting in a denser soil structure. Further analysis of the change in contact stress between particles in the discrete element model revealed that the contact force between particles increased significantly after reinforcement and that the reinforcement played a role in restraining the soil particles and dispersing the reinforcement stress, which explains the increase in the strength of the mesh-reinforced clays from another perspective. This further elucidates the strength enhancement mechanism in geogrid-reinforced clay, offering a new perspective on the mechanical behavior and strength development of such materials.

show abstract