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Applied Sciences
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Latest Research on Geotechnical Engineering
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Latest Research on Geotechnical Engineering

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

Deadline for manuscript submissions: 31 August 2024 | Viewed by 3065

Special Issue Editors

Dr. Bangbiao Wu

E-Mail Website
Guest Editor
School of Civil Engineering, Tianjin University, Tianjin 300350, China
Interests: dynamic response of geomaterials; dynamic fracture mechanics; rock physics; impact dynamic of rock materials
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Xia Bian

E-Mail Website
Guest Editor
Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China
Interests: soil cement; deep mixing method; calcium carbide
Dr. Yingchun Li

E-Mail Website
Guest Editor
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
Interests: coal mining; rock mechanics; numerical modeling in geotechnical engineering; geotechnical engineering

Special Issue Information

Dear Colleagues,

The prediction and mitigation of natural hazards is crucial for making risk-informed decisions and implementing sound policy. The same is true for the design and operation of systems that can collectively build resilience against natural catastrophes. With the development of varying techniques, the mechanical behavior of geomaterials has been widely studied to improve the design, construction and maintenance of geotechnical engineering in order to resist the different challenges humanity faces.

In recent years, geotechnical engineering has seen significant advancements across various areas. Researchers have focused on adapting to climate change by studying its impacts on the geomaterial properties of objects and structures and infrastructural stability. The deployment of monitoring systems that utilize sensors and data analysis has enabled real-time tracking of geomaterial and structural behaviors, enhancing risk assessment. Sustainable improvement techniques have evolved, incorporating eco-friendly materials and microbiological approaches. Novel materials are being explored for enhanced durability and reduced environmental impact, such as nanomaterials and high-performance concrete. Numerical modeling and simulations have become more sophisticated, aiding in accurate predictions and design. Overall, these advancements underscore geotechnical engineering's continuous evolution to meet complex infrastructure needs and environmental challenges.

In light of this, this Special Issue invites original submissions and review articles covering the recent advances in any area of geotechnical engineering from a theoretical, experimental, or numerical perspective.

Dr. Bangbiao Wu
Prof. Dr. Xia Bian
Dr. Yingchun Li
Guest Editors

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

  • mechanical behavior of geomaterials
  • geotechnical challenges in urbanization
  • sustainable geotechnics
  • geomaterial–structure interaction
  • climate change and geotechnics
  • numerical and analytical modeling
  • risk assessment and management
  • geotechnical monitoring and instrumentation
  • advanced testing and characterization of geomaterials
  • energy geotechnics

Published Papers (4 papers)

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Research

15 pages, 3109 KiB  
Article
Spatial and Temporal Distribution Characteristics of Landslide Surge Based on Large-Scale Physical Modeling Experiment
by Yangyang Zhang, Qingfu Huang, Shizhuang Chen, Fudong Chi, Huachen Wang and Weiya Xu
Appl. Sci. 2024, 14(5), 2104; https://doi.org/10.3390/app14052104 - 03 Mar 2024
Viewed by 489
Abstract
Surge is a common secondary disaster caused by reservoir landslides. The study of its spatial and temporal distribution characteristics is important since it affects not only the normal operation of reservoirs but also the safety of people residing along the river. This paper [...] Read more.
Surge is a common secondary disaster caused by reservoir landslides. The study of its spatial and temporal distribution characteristics is important since it affects not only the normal operation of reservoirs but also the safety of people residing along the river. This paper presents a large-scale three-dimensional physical modeling experiment using a near-dam high-position landslide project as a prototype. It investigated the relationships between the river course characteristics, the landslide volume, the head wave velocity of the landslide surge, the waveform of surges, and the head wave crest of the wave along the course in depth. The results indicate that the head wave velocity of the landslide surge is basically unchanged during the propagation process, and it is minimally affected by the landslide volume. The waveform distribution characteristics and head wave crests change considerably in the diversion area and the curved areas but remain mostly unchanged in the topographic similarity area. In addition, there is a negative correlation between the head wave crest and the cross-sectional area of the river course. Furthermore, under conditions of a large landslide volume, the influence of the cross-sectional area of the river channel on the wave height of landslide surges becomes more significant. Finally, the maximum wave height along the course may not necessarily occur in the head wave crest; it could occur in the second wave or even the subsequent ones. Full article
(This article belongs to the Special Issue Latest Research on Geotechnical Engineering)
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21 pages, 10346 KiB  
Article
A Study on the Softening Shear Model of the Energy Pile–Soil Contact Surface
by Huiyuan Wang, Peng Zhao, Xiaozhao Li, Xue Wang and Xia Bian
Appl. Sci. 2024, 14(3), 1072; https://doi.org/10.3390/app14031072 - 26 Jan 2024
Viewed by 584
Abstract
In this paper, a finite element numerical model of thermal-hydro-mechanical of energy piles under multi-layer geological conditions was established, and field tests of ultra-long energy pile (1000-mm-diameter, 44-m-long) were carried out to reveal the temperature distribution and mechanical properties of energy pile under [...] Read more.
In this paper, a finite element numerical model of thermal-hydro-mechanical of energy piles under multi-layer geological conditions was established, and field tests of ultra-long energy pile (1000-mm-diameter, 44-m-long) were carried out to reveal the temperature distribution and mechanical properties of energy pile under typical working conditions. Based on the analytical results, a softening shear model of the energy–soil interface under the condition of large shear displacement was proposed with the load transfer method, and the reliability of the model was verified. The model can simulate the shear–displacement relationship of the pile–soil interface under different geological conditions. Full article
(This article belongs to the Special Issue Latest Research on Geotechnical Engineering)
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16 pages, 6600 KiB  
Article
Nucleation Mechanism and Rupture Dynamics of Laboratory Earthquakes at Different Loading Rates
by Gongcheng Wu, Kanghua Zhang, Chonglang Wang and Xing Li
Appl. Sci. 2023, 13(22), 12243; https://doi.org/10.3390/app132212243 - 11 Nov 2023
Viewed by 750
Abstract
The loading rate of tectonic stress is not constant during long-term geotectonic activity and significantly affects the earthquake nucleation and fault rupture process. However, the mechanism underlying the loading rate effect is still unclear. In this study, we conducted a series of experiments [...] Read more.
The loading rate of tectonic stress is not constant during long-term geotectonic activity and significantly affects the earthquake nucleation and fault rupture process. However, the mechanism underlying the loading rate effect is still unclear. In this study, we conducted a series of experiments to explore the effect of the loading rate on earthquake nucleation and stick–slip characteristics. Through lab experiments, faults were biaxially loaded at varying rates to produce a series of earthquakes (stick–slip events). Both shear strain and fault displacement were monitored during these events. The findings indicate a substantial effect of the loading rate on the recurrence interval and the shear stress drop of these stick–slip events, with the recurrence interval inversely proportional to the loading rate. The peak friction of the fault also decreases with the increasing loading rate. Notably, prior to the dynamic rupture of earthquakes, there exists a stable nucleation phase where slip occurs in a quasi-static manner. The critical nucleation length, or the distance required before the dynamic rupture, diminishes with both the loading rate and normal stress. A theoretical model is introduced to rationalize these observations. However, the rupture velocity of these lab-simulated earthquakes showed no significant correlation with the loading rate. Overall, this study enhanced our comprehension of earthquake nucleation and rupture dynamics in diverse tectonic settings. Full article
(This article belongs to the Special Issue Latest Research on Geotechnical Engineering)
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15 pages, 6926 KiB  
Article
Analysis of Energy Evolution and Acoustic Emission Characteristics of Rocks under Cyclic Loading and Unloading
by Zhushuai Wang, Yu Yang, Yu Xu, Changhao Xin, Pengfei Liang and Ning Guo
Appl. Sci. 2023, 13(18), 10453; https://doi.org/10.3390/app131810453 - 19 Sep 2023
Cited by 2 | Viewed by 634
Abstract
This paper presents two experimental schemes, graded cyclic loading and unloading, and variable lower limit cyclic loading and unloading, to investigate the energy evolution and acoustic emission characteristics of rocks under different cyclic loading and unloading paths. The experiments were conducted using a [...] Read more.
This paper presents two experimental schemes, graded cyclic loading and unloading, and variable lower limit cyclic loading and unloading, to investigate the energy evolution and acoustic emission characteristics of rocks under different cyclic loading and unloading paths. The experiments were conducted using a WAW-300B microcomputer-controlled hydraulic servo universal testing machine and an AMSY-6 acoustic emission testing instrument. The evolution characteristics of both the acoustic emission ring count and energy count during the loading process were monitored in real-time, and the energy evolution and damage status of the rocks in each cycle were inferred from the stress–strain curve. The results show that: (1) under both types of cyclic loading and unloading paths, the elastic energy, dissipative energy, and total energy of the rocks are positively correlated with the number of cycles; (2) through comparative analysis of the energy dissipation rate and storage rate, it is concluded that the gradual accumulation of dissipative energy ultimately leads to rock failure; (3) based on the energy dissipation method, the study reveals that rock damage is more severe under the variable lower limit cyclic loading and unloading path; (4) under both types of cyclic loading and unloading, the acoustic emission ring count exhibits the Kaiser effect, and Felicity is negatively correlated with the number of cycles. This holds significance in comprehending the behavior of rock deterioration and forecasting its state of destruction. Full article
(This article belongs to the Special Issue Latest Research on Geotechnical Engineering)
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