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Recent Advances in Geotechnical Stability and Technological Applications

A special issue of Sustainability (ISSN 2071-1050).

Deadline for manuscript submissions: closed (1 November 2022) | Viewed by 9254

Special Issue Editors

Department of Civil and Construction Engineering, National Taiwan University of Science and Technology, Taipei 106335, Taiwan
Interests: slope stability; artificial intelligence; geotechnical uncertaint

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Guest Editor
Department of Civil and Construction Engineering, National Taiwan University of Science and Technology, Taipei 106335, Taiwan
Interests: urban geotechnical engineering; bio-mediated soil Improvement; geo-environmental engineering

Special Issue Information

Dear Colleagues,

Since the father of soil mechanics, Karl Terzaghi, gave engineers a basic understanding of soil mechanics and behavior in 1925, the problem of geotechnical engineering has gradually received increasing attention. However, the stability of geotechnical engineering has been an important civil engineering problem for nearly a century. Scholars and engineers continue to invest a great deal of research and accumulated experience, and we now have a better grasp of the engineering and safety of earth materials. In recent years, with the rapid development of science and technology, there have been significant advances in both numerical analysis and test methods in geotechnical engineering. Most of the general geotechnical design is not a problem. However, it may be that the over-exploitation of resources has exacerbated global warming. The impact of extreme weather has gradually increased over the past two decades. Therefore, the sustainability of geotechnical projects and the timeliness of disaster prevention have gradually received attention. Based on the above factors, this Special Issue aims to publish high-quality research articles as well as reviews that seek to address recent advanced developments and applications in geotechnical safety, sustainability, and uncertainty.

Potential topics include but are not limited to the following:

  • Advanced techniques in soil improvement and reinforcement;
  • Applications of smart techniques in geotechnical engineering;
  • Nondestructive test methods in soils and rocks;
  • Development of early warning techniques and disaster management systems;
  • Advanced numerical modeling applied to geohazards;
  • Development of new experimental techniques for soils and rocks;

Investigations of the effects of geotechnical uncertainties on stability problems.

Dr. Anjui Li
Dr. Fuchen Teng
Guest Editors

Manuscript Submission Information

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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

  • artificial intelligence
  • reliability
  • risk management
  • geohazard

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Published Papers (2 papers)

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Research

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19 pages, 1171 KiB  
Article
Reliability Analysis of an Embankment Built and Reinforced in Soft Ground Using LE and FE
by Jean Lucas dos Passos Belo, Jefferson Lins da Silva and Paulo Ivo Braga de Queiroz
Sustainability 2022, 14(4), 2224; https://doi.org/10.3390/su14042224 - 16 Feb 2022
Cited by 2 | Viewed by 2078
Abstract
A coupling method is presented to integrate well-known geotechnical modeling commercial programs with a reliability one. Coupling enables us to use transformation methods, such as the first-order reliability method (FORM), to evaluate the reliability index (β) of a model, via the [...] Read more.
A coupling method is presented to integrate well-known geotechnical modeling commercial programs with a reliability one. Coupling enables us to use transformation methods, such as the first-order reliability method (FORM), to evaluate the reliability index (β) of a model, via the limit equilibrium (LEM) or the finite-element method (FEM). It was applied to a case study of a stage-constructed embankment on soft ground by considering two conditions, unreinforced and reinforced, to investigate its probabilistic stability. In addition, the value of β associated with a postconstruction settlement was acquired, and it showed one possibility that the coupling method is able to provide. The influence of the uncertainty level on reliability analysis was also analyzed. The outcomes were compared to the crude Monte Carlo simulation. As a result, the proposed approach was satisfactory, and the advantage of using it is presented; with a much lower computational cost than simulation methods, evaluation time may be up to 13.8 times faster than usual with great precision. Moreover, this approach can apply to other commercial programs widely used in practice. Full article
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Review

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37 pages, 24498 KiB  
Review
Investigations of Unsaturated Slopes Subjected to Rainfall Infiltration Using Numerical Approaches—A Parametric Study and Comparative Review
by Joram Wachira Mburu, An-Jui Li, Horn-Da Lin and Chih-Wei Lu
Sustainability 2022, 14(21), 14465; https://doi.org/10.3390/su142114465 - 3 Nov 2022
Cited by 17 | Viewed by 5459
Abstract
In the past 30 years, research on rainfall-induced landslides has grown remarkably. The contribution of matric suction to soil strength and the physics of water flow in unsaturated soils are widely accepted phenomena among researchers. However, the adoption of unsaturated soil mechanics in [...] Read more.
In the past 30 years, research on rainfall-induced landslides has grown remarkably. The contribution of matric suction to soil strength and the physics of water flow in unsaturated soils are widely accepted phenomena among researchers. However, the adoption of unsaturated soil mechanics in geotechnical engineering practice has been relatively slow, in part due to the practicality of design solutions available to the engineer. This paper conducts a parametric study on unsaturated silty slopes under a vertical steady flow rate to identify the suitable slope and hydrologic conditions to incorporate unsaturated conditions for preliminary stability analysis. Notably, the contribution of suction is most significant for silt/clay slopes with a water table located below the mid-height of the slope. For slopes with slope height ≥20 m and a fairly high water table, the slope height is a primary controlling factor of slope stability. Two case studies based on distinct failure mechanisms are presented to review the application of common geotechnical software in rainfall seepage and stability analyses of unsaturated slopes. Focus is placed on the pre-failure and failure stages of each case study. The slip surface search method, failure mode, and coupling approach integrated into each computer program caused notable differences in output results. Full article
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