Calculation of vertical bearing capacity factor of strip footing by FEM

Phuor, Ty; Harahap, Indra Sati Hamonangan; Yee, Ng Cheng

doi:10.1088/1757-899x/513/1/012011

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…As described, there are several proposed formulas, but no is totally accurate (Nguyen et al, 2016), generating as consequences discrepancies in the results (Ty et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Probability Distribution in the Variability of the Ny Factor of Shallow Foundations

Mendoza¹

2021

IJAERS

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Due to the existing variability in the calculation of the bearing capacity factors, specifically when obtaining the N value of the bearing capacity, which is estimated by a large number of equations that have been obtained by approaches of limit equilibrium, method of characteristics, empirical, semi-empirical, among others; thus existing a great uncertainty, therefore, this article took a total of 55 equations that compute this value to carry out a probabilistic study where N values were obtained for friction angles of 5º, 10º, 15º, 20º, 25º, 30º and 35º, being the variability obtained being directly proportional to friction angle. Also, it was found that the data have a good correlation with the Lognormal distribution, according to the Kolgomorov-Smirnov and Anderson-Darling tests, in this context, Lognormal cumulative probability distribution curves of the data under study were elaborated, thus allowing not to opt for a single or deterministic value but a probable or acceptable value according to the size of a project with a conservative range.

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“…As described, there are several proposed formulas, but no is totally accurate (Nguyen et al, 2016), generating as consequences discrepancies in the results (Ty et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Probability Distribution in the Variability of the Ny Factor of Shallow Foundations

Mendoza¹

2021

IJAERS

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Bearing capacity factors of cone‐shaped footing in meshfree

Phuor

Ganz

Trapper

2022

Num Anal Meth Geomechanics

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Unlike the flat base foundations, the determination of the bearing resistance of the cone-shaped footing in finite element analysis (FEA) might not be carried out without considering the interface model. In addition, the simulations of the FEA is hardly achieved with a large system due to the assembly technique. So, the alternative should be considered. Therefore, this paper proposes a new method for computing the 𝑁 𝑐 , 𝑁 𝑞 and 𝑁 𝛾 factors of the bearing capacity of the rough and smooth cone-shaped foundations by combining the skew boundary condition as the interface model incorporated with the viscoplastic strain method-based meshfree obeying the yield equation of the Mohr-Coulomb (MC). Thus, the factors can be determined exclusively and reported to reach a close agreement with the published data; nevertheless, the discrepancies are also provided. The plastic flow of the soil mechanics is discussed thoroughly. In addition, the effects of soil friction angle (𝜙) and cone-shaped angle (𝛽) on the factors are inspected systematically. Accordingly, the conservation of the Terzaghi's superposition assumption is confirmed, and the bearing capacity factor charts can be established for various combinations of 𝜙 = 5 o -45 o and 𝛽 = 30 o -180 o . Therefore, it may conclude that the results produced by these techniques and the techniques themselves may be applied confidently for solving geotechnical problems, especially for computing the bearing resistance of the soil.

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Calculation of vertical bearing capacity factor of strip footing by FEM

Cited by 2 publications

References 20 publications

Probability Distribution in the Variability of the Ny Factor of Shallow Foundations

Probability Distribution in the Variability of the Ny Factor of Shallow Foundations

Bearing capacity factors of cone‐shaped footing in meshfree

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