Assessment of adjacent foundations consequences and solutions for remediation via physical modeling

Moghadasi, Hassan; Eslami, Abolfazl; Akbarimehr, Davood; Asgari, Sajjad

doi:10.1016/j.soildyn.2024.108613

Soil Dynamics and Earthquake Engineering

2024

DOI: 10.1016/j.soildyn.2024.108613

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Assessment of adjacent foundations consequences and solutions for remediation via physical modeling

Hassan Moghadasi,

Abolfazl Eslami,

Davood Akbarimehr

et al.

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2024

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Cited by 3 publications

References 16 publications

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Shaking table test on seismic wave propagation characteristics of substrate-overlying slope with weak structural plane

Pai

2024

Arab J Geosci

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Shaking table test on seismic wave propagation characteristics of substrate-overlying slope with weak structural plane

Pai

2024

Arab J Geosci

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Numerical Study of the Ultimate Bearing Capacity of Two Adjacent Rough Strip Footings on Granular Soil: Effects of Rotational and Horizontal Constraints of Footings

Salari,

Lezgy-Nazargah,

Shafaie

et al. 2024

Buildings

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In this paper, the numerical study of the ultimate bearing capacity (UBC) of two closely spaced strip footings on granular soil is investigated using the finite element method (FEM) and upper bound limit analysis (UBLA). Although the UBC of two adjacent footings has previously been studied in other experimental and numerical research, in all the previously reported studies, the footings were not allowed to rotate and move horizontally freely. Due to the deformation of the soil medium, two closely spaced footings are subjected to horizontal movements and tilting, even under central vertical loads. When the two adjacent footings are not permitted to rotate and move in the horizontal directions, the unwanted bending moment and horizontal force act on the footings. Indeed, the UBC of two closely spaced rough footings is evaluated under incorrect constraints in earlier research. In the present research, the UBC of two adjacent rough footings is evaluated with and without these incorrect constraints. The key finding of this study is that constraining the horizontal and rotational movement of the foundation artificially increases the UBC, which does not reflect field conditions. When foundations are permitted to rotate and move horizontally, there is no increase in UBC; however, there is an increased risk of differential settlement and structural instability.

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Static and Dynamic Cone Penetrometer Tests for Babolsar Sand Parameters via Physical Modeling

Eslami,

Nobahar,

Esmailzade

2024

Geotechnics

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Field tests are the most suitable method to determine geotechnical parameters. Owing to some restrictions in field tests, physical modeling has been widely accepted as a proper method to define mathematical correlations among geotechnical parameters. This study investigates correlations between parameters derived from cone penetrometer tests. The tests were performed in a cylindrical chamber with a height and diameter of 1000 mm to minimize the boundary effect. Coastal poorly graded sand sampled from the Babolsar region, adjacent to the Caspian Sea, was used. Some correlations among geotechnical parameters, including cone resistance, dynamic cone resistance, dynamic penetration index, modulus of elasticity, internal friction angle, and relative density, are presented. All correlations were categorized into three main categories: soil stiffness, penetration strength, and geotechnical parameters. The results had reasonable accuracy and precision. The average R2 value of the obtained results was approximately 94. The investigations into the inherent CPT also indicated that the strength parameter had more accuracy than stiffness and other sand parameters. Specifically, the R2 value for the correlation between the results of various penetration tests, considered strength parameters, averaged 97. In contrast, the R2 value for the correlation between the elasticity modulus and cone penetration test results was 86.

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Assessment of adjacent foundations consequences and solutions for remediation via physical modeling

Cited by 3 publications

References 16 publications

Shaking table test on seismic wave propagation characteristics of substrate-overlying slope with weak structural plane

Shaking table test on seismic wave propagation characteristics of substrate-overlying slope with weak structural plane

Numerical Study of the Ultimate Bearing Capacity of Two Adjacent Rough Strip Footings on Granular Soil: Effects of Rotational and Horizontal Constraints of Footings

Static and Dynamic Cone Penetrometer Tests for Babolsar Sand Parameters via Physical Modeling

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