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Applied Sciences
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Soil-Structure Interaction: Analysis and Applications
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Soil-Structure Interaction: Analysis and Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: closed (20 April 2023) | Viewed by 3112

Special Issue Editor

Dr. Alba Yerro

E-Mail Website
Guest Editor
Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24062, USA
Interests: geotechnical hazards; numerical modeling; material point method; landslides; soil-water-structure interaction; multi-phase modeling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Interactions between soil and structures play an essential role in studying geotechnical and muli-body problems. Some relevant examples are the impact of landslides on civil infrastructure, soil characterization through in-situ testing using penetrating tools, pile installation, the response of piers embedded in liquefiable layers, or off-road trafficability. Understanding the behavior of these interactions is required to improve the design of geotechnical systems and to have safer and more resilient communities.

The mechanics of soil-structure interactions are generally complex due to the multi-body contact, soil non-linearities, and multi-phase coupling effects (i.e., in saturated or unsaturated conditions). In addition, large deformations of the soil are commonly encountered in such processes in large variability of strain rates, making their numerical modeling extremely challenging.

This Special Issue aims to encourage original submissions that provide innovative solutions to study soil-structure interaction problems. Numerical and theoretical approaches are welcome, as well as field and experimental studies that can serve for comparison and benchmarking.

Dr. Alba Yerro
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • soil-structure interaction
  • contact
  • impact
  • penetration
  • geotechnical systems
  • numerical modeling
  • experimental modeling
  • benchmarking

Published Papers (2 papers)

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Research

15 pages, 2561 KiB  
Article
Mechanical Response Analysis for an Active–Passive Pile Adjacent to Surcharge Load
by Limin Wei, Kaixin Zhang, Qun He and Chaofan Zhang
Appl. Sci. 2023, 13(7), 4196; https://doi.org/10.3390/app13074196 - 25 Mar 2023
Cited by 2 | Viewed by 1361
Abstract
Due to the complexity of pile–soil interaction, there is little research on active–passive piles that bear the pile-top load transmitted from the superstructure and the pile shaft load caused by the lateral soil movement around the pile simultaneously. The purpose of this study [...] Read more.
Due to the complexity of pile–soil interaction, there is little research on active–passive piles that bear the pile-top load transmitted from the superstructure and the pile shaft load caused by the lateral soil movement around the pile simultaneously. The purpose of this study is to analyze the displacement and internal force of active–passive piles. Most of the pile design codes in China use the elastic resistance method to describe the relationship between the lateral soil resistance and the horizontal displacement of the pile, but this is not accurate enough to analyze the internal force and deformation of the pile when the pile displacement is large. For this case, the passive load on the pile shaft caused by the adjacent surcharge load can be described in stages, and the p–y curve method can be used to express the relationship between the lateral soil resistance and the horizontal displacement of the pile. Additionally, taking both the active load (vertical force, horizontal force, and bending moment on the pile top) and the passive load into account, the deflection differential equation of the pile shaft is herein established, and a corresponding finite difference method program is implemented to obtain the calculations pursuant to the equation. The correctness of the analysis method and program was verified by two test cases. The results show that our calculation method can effectively judge the flow state of the soil around piles and accurately reflect the nonlinear characteristics of pile-soil interaction. Moreover, the influence depth of the pile displacement under the passive pile condition caused by the adjacent load is significantly greater than that under active pile condition, and the maximum pile-bending moment appears near the interface of soft and hard soil layer. Full article
(This article belongs to the Special Issue Soil-Structure Interaction: Analysis and Applications)
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13 pages, 2645 KiB  
Article
Analysis of Internal Forces and Deformation for a Single Pile in Layered Soil Based on the p-y Curve Method
by Limin Wei, Junpeng Wang, Shun Zhai and Qun He
Appl. Sci. 2023, 13(6), 3520; https://doi.org/10.3390/app13063520 - 9 Mar 2023
Cited by 1 | Viewed by 1430
Abstract
The p-y curve method can be used to describe the stress–strain relationship of soil under elastic, elastoplastic, and plastic states, and is more accurate than other methods in dealing with the nonlinearity of pile–soil interaction. However, the p-y curve method also has several [...] Read more.
The p-y curve method can be used to describe the stress–strain relationship of soil under elastic, elastoplastic, and plastic states, and is more accurate than other methods in dealing with the nonlinearity of pile–soil interaction. However, the p-y curve method also has several limitations. First, when constructing the p-y curve, undrained shear strength Cu is taken to be constant, and the diversity of soil layers around the pile side are also not considered. Second, in the analysis of the internal forces and deformation of the pile, the influence of the vertical load from the top of the pile and the self-weight of the pile, are both ignored. Third, in the analysis of internal forces and deformation, the pile side soil is set equivalent to a homogeneous soil layer, and the layering of the soil is not considered at all. In order to study the nonlinear problem of internal forces and deformation of a single pile in layered soil in greater detail, this paper analyzes a calculation model based on Wang’s calculation model, and compares several commonly used p-y curve calculation models. An internal force and deformation analysis model for a laterally loaded single pile, that explicitly considers the second-order effect is then established, by considering the differences between p-y curves of different soil types, as well as the change in Cu with depth. The differential equation of pile deflection for a single pile in layered soil is also presented, together with the corresponding finite differential solution algorithm program. This model was validated using a horizontal load test of a pile, and comparison of the calculated results with the measured results shows that the method outperforms existing p-y curve methods for deformation and internal force analysis of horizontally loaded piles. Full article
(This article belongs to the Special Issue Soil-Structure Interaction: Analysis and Applications)
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