Structural Mechanics Analysis of Soil-Structure Interaction

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Structures".

Deadline for manuscript submissions: closed (30 December 2024) | Viewed by 3945

Special Issue Editors


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Guest Editor
School of Civil Engineering, Lanzhou University of Technology, 287# Langongping Rd. Qilihe District, Lanzhou, China
Interests: seismic response of structure in the ground
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Guest Editor
School of Architectural Engineering, Jinling Institute of Technology, No.99 Hongjing Avenue, Jiangning District, Nanjing, China
Interests: artificial freezing method; soft soil engineering; roadbed construction; soil freezing and thawing deformation; machine learning
Special Issues, Collections and Topics in MDPI journals
School of Civil Engineering, Lanzhou University of Technology, 287# Langongping Rd. Qilihe District, Lanzhou, China
Interests: frozen soil engineering; frozen soil mechanics; reinforced soil structure; soil-structure interaction; geosynthetics engineering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Soil–structure interaction issues are common in subsurface engineering, among other forms. Still, the mechanical response at the soil–structure interface is as crucial as the mechanical response of soil or structural material under load action in direct contact with soil. What is the stress–strain relationship and the load transfer mechanism if one begins to move about the other?

Most prior efforts on interface testing were based on direct shear, tri-axial, and pull-out tests, among others. The constitutive interface models are nonlinear, elastic–plastic, coupling, damage, and multi-field models. These works promote the study of the interface interaction well. How the mechanical response at the soil–structure interface is influenced by interface roughness, loading type, materials, testing environment, and so on, as well as three-dimensional interface information, is still insufficiently understood. Therefore, the mechanical response of the interface is still the focus of attention, and various new methods, theories, and models are still emerging.

In this Special Issue, we invite original contributions describing new research, case studies, projects, reviews, and state-of-the-art discussions related to the soil–structure interaction. Submissions may concern theoretical or applied research in areas such as geotechnical engineering, material science, civil engineering, or other fields.

We welcome papers on the following and related topics, including but not limited to the following:

  • Macro and micro measurement technology on the soil–structure interface; including static and dynamic loading;
  • Multi-field coupling constitutive model of the interface;
  • Effect of interface mechanical properties on the stability of structures;
  • New research methods related to digital technology.

Prof. Dr. Jianhua Dong
Dr. Wenhu Fan
Dr. Pengfei He
Guest Editors

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Keywords

  • soil–structure interface
  • constitutive model
  • measurement technology
  • stability of structure
  • multi-field
  • digital technology

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Published Papers (4 papers)

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Research

15 pages, 2347 KiB  
Article
Study on the Optimal Construction Time of Adjacent Pile Foundation Considering the Thermal Stability of the Existing Pile Foundation
by Xiangyang Shi, Yunxing Wang, Ziqiang Zhou and Long Huang
Buildings 2025, 15(5), 684; https://doi.org/10.3390/buildings15050684 - 21 Feb 2025
Viewed by 487
Abstract
To control settlement deformation in permafrost regions, new piles are constructed for remediation. However, the construction of new piles inevitably causes thermal disturbance to the existing pile foundations. A three-dimensional quarter-model of a rectangularly arranged pile group was established to analyze temperature field [...] Read more.
To control settlement deformation in permafrost regions, new piles are constructed for remediation. However, the construction of new piles inevitably causes thermal disturbance to the existing pile foundations. A three-dimensional quarter-model of a rectangularly arranged pile group was established to analyze temperature field changes under construction time in odd-numbered months. In addition, a refreezing rate formula based on the effective freezing temperature was developed to examine the annual changes. The results indicate that the thermal disturbance from the new pile foundation construction gradually weakens over time but does not subside within a year, which significantly affects 75% of the existing pile length, and that the refreezing rate continues to increase after construction in November, i.e., the initial month of the cold season, and is maximized in approximately 60 days. This result suggests that November is the optimal time for such construction activities. The findings of this study provide valuable insights for pile engineering practices to mitigate issues caused by permafrost degradation. Full article
(This article belongs to the Special Issue Structural Mechanics Analysis of Soil-Structure Interaction)
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18 pages, 6869 KiB  
Article
Numerical Analysis of Anti-Slide Pile Reinforcement for Slope Stability Under Rainfall Conditions
by Zhongyi Wen, Weiyuan Xu, Bingxiang Yuan, Lijuan Zhang and Zhu Liang
Buildings 2025, 15(4), 638; https://doi.org/10.3390/buildings15040638 - 19 Feb 2025
Viewed by 564
Abstract
Rainfall-induced slope instability is a critical challenge in geotechnical engineering. This study investigates the reinforcement effect of anti-slide piles on slope stability under rainfall conditions using finite element numerical simulations, based on a slope reinforcement project in Youxi County, Fujian Province. The MIDAS [...] Read more.
Rainfall-induced slope instability is a critical challenge in geotechnical engineering. This study investigates the reinforcement effect of anti-slide piles on slope stability under rainfall conditions using finite element numerical simulations, based on a slope reinforcement project in Youxi County, Fujian Province. The MIDAS GTS NX 2019(v1.2) software was employed to analyze the effects of anti-slide pile arrangements on slope safety factors, pore water pressure, displacement fields, and reinforcement effectiveness. The results showed that anti-slide piles significantly enhanced slope stability by mitigating the adverse effects of rainfall, such as an increased pore water pressure and reduced soil strength. The optimal stability was achieved when anti-slide piles were positioned in the middle sections of the slope, and the horizontal displacement in the x-direction was reduced from 74.49 mm (without reinforcement) to 7.42 mm, achieving a reduction of 90.0%, effectively reducing horizontal displacement and plastic strain zones. This study provides valuable insights into the interaction mechanisms between anti-slide piles and soil, offering practical guidance for slope reinforcement design and strategies to mitigate rainfall-induced slope failures. Full article
(This article belongs to the Special Issue Structural Mechanics Analysis of Soil-Structure Interaction)
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27 pages, 10001 KiB  
Article
Influential Mechanisms of Roughness on the Cyclic Shearing Behavior of the Interfaces Between Crushed Mudstone and Steel-Cased Rock-Socketed Piles
by Yue Liang, Jianlu Zhang, Bin Xu, Zeyu Liu, Lei Dai and Kui Wang
Buildings 2025, 15(1), 141; https://doi.org/10.3390/buildings15010141 - 5 Jan 2025
Viewed by 1052
Abstract
In the waterway construction projects of the upper reaches of the Yangtze River, crushed mudstone particles are widely used to backfill the foundations of rock-socketed concrete-filled steel tube (RSCFST) piles, a structure widely adopted in port constructions. In these projects, the steel–mudstone interfaces [...] Read more.
In the waterway construction projects of the upper reaches of the Yangtze River, crushed mudstone particles are widely used to backfill the foundations of rock-socketed concrete-filled steel tube (RSCFST) piles, a structure widely adopted in port constructions. In these projects, the steel–mudstone interfaces experience complex loading conditions, and the surface profile tends to vary within certain ranges during construction and operation. The changes in boundary conditions and material profile significantly impact the bearing performance of these piles when subjected to cyclic loads, such as ship impacts, water level fluctuations, and wave-induced loads. Therefore, it is necessary to investigate the shear characteristics of the RSCFST pile–soil interface under cyclic vertical loading, particularly in relation to varying deformation levels in the steel casing’s outer profile. In this study, a series of cyclic direct shear tests are carried out to investigate the influential mechanisms of roughness on the cyclic behavior of RSCFST pile–soil interfaces. The impacts of roughness on shear stress, shear stiffness, damping ratio, normal stress, and particle breakage ratio are discussed separately and can be summarized as follows: (1) During the initial phase of cyclic shearing, increased roughness correlates with higher interfacial shear strength and anisotropy, but also exacerbates interfacial particle breakage. Consequently, the sample undergoes more significant shear contraction, leading to reduced interfacial shear strength and anisotropy in the later stages. (2) The damping ratio of the rough interface exhibits an initial increase followed by a decrease, while the smooth interface demonstrates the exact opposite trend. The variation in damping ratio characteristics corresponds to the transition from soil–structure to soil–soil interfacial shearing. (3) Shear contraction is more pronounced in rough interface samples compared to the smooth interface, indicating that particle breakage has a greater impact on soil shear contraction compared to densification. Full article
(This article belongs to the Special Issue Structural Mechanics Analysis of Soil-Structure Interaction)
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23 pages, 40212 KiB  
Article
Global and Local Shear Behavior of the Frozen Soil–Concrete Interface: Effects of Temperature, Water Content, Normal Stress, and Shear Rate
by Kun Zhang, Jianglin Yan, Yanhu Mu, Xiaoming Zhu and Lianhai Zhang
Buildings 2024, 14(10), 3319; https://doi.org/10.3390/buildings14103319 - 21 Oct 2024
Cited by 1 | Viewed by 1052
Abstract
The interface between soil and concrete in cold climates has a significant effect on the structural integrity of embedded structures, including piles, liners, and others. In this study, a novel temperature control system was employed to conduct direct shear tests on this interface. [...] Read more.
The interface between soil and concrete in cold climates has a significant effect on the structural integrity of embedded structures, including piles, liners, and others. In this study, a novel temperature control system was employed to conduct direct shear tests on this interface. The test conditions included normal stress (25 to 100 kPa), temperature (ranging from 20 to −6 °C), water content (from 10 to 19%), and shear rates (0.1 to 1.2 mm/min). Simultaneously, the deformation process of the interface was continuously photographed using a modified visual shear box, and the non-uniform deformation mechanism of the interface was analyzed by combining digital image correlation (DIC) technology with the photographic data. The findings revealed that the shear stress–shear displacement curves did not exhibit a discernible peak strength at elevated temperatures, indicating deformation behavior characterized by strain hardening. In the frozen state, however, the deformation softened, and the interfacial ice bonding strength exhibited a positive correlation with decreasing temperature. When the initial water content was 16% and the normal stress was 100 kPa, the peak shear strength increased significantly from 99.9 kPa to 182.9 kPa as the test temperature dropped from 20 °C to −6 °C. Both shear rate and temperature were found to have a marked effect on the peak shear strength, with interface cohesion being the principal factor contributing to this phenomenon. At a shear rate of 0.1 mm/min, the curve showed hardening characteristics, but at other shear rates, the curves exhibited strain-softening behavior, with the softening becoming more pronounced as shear rates increased and temperatures decreased. Due to the refreezing of interfacial ice, the residual shear strength increased in proportion to the reduction in shear rate. On a mesoscopic level, it was evident that the displacement of soil particles near the interface exhibited more pronounced changes. At lower shear rates, the phenomenon of interfacial refreezing became apparent, as evidenced by the periodic changes in interfacial granular displacement at the interface. Full article
(This article belongs to the Special Issue Structural Mechanics Analysis of Soil-Structure Interaction)
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