Special Issue "Sustainable Geotechnical Engineering and Its Applications"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Geo-Energy".

Deadline for manuscript submissions: 10 April 2021.

Special Issue Editors

Prof. Gye-Chun Cho
Website
Guest Editor
Korea Advanced Institute of Science and Technology, Department Civil and Environmental Engineering, 291 Daehak Ro, Daejeon 34141, South Korea
Interests: geotechnical engineering; energy geotechnology; bio-soil; rock excavation
Special Issues and Collections in MDPI journals
Prof. Dr. Ilhan Chang
Website1 Website2
Guest Editor
Department of Civil Systems Engineering, Ajou University, Suwon-si, Gyeonggi-do, 16499, South Korea
Interests: Geotechnical engineering; Ground improvement; Bio-soil; Sustainability
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

Recently, the World and human beings are facing severe climate change and accompanying geotechnical engineering hazards such as soil degradation (e.g. desertification), landslides, scouring and erosion, floods. In addition, the population bloom and drastic expansion of metropolitan regions are requesting high demands on underground spaces and sustainable urban development. Therefore, environmentally friendly and sustainable development is now an inevitable challenge for civil and geotechnical engineers, where the world and society are asking geotechnical engineering to provide solutions to mitigate climate-related geotechnical engineering hazards and to maintain a sustainable civilization. This Special Issue welcomes all type of contributions to resolve current challenges in sustainable geotechnical engineering from fundamental research to practical implementation scales. The aim of this Special Issue is to provide a source of “Sustainable Geotechnical Engineering and Its Applications that deal with conventional or new fields in geotechnical engineering including: geotechnical engineering hazards, climate change issues, development of new material / methods for sustainable geotechnical engineering practice, geoenvironmental topics and research, sustainable urban development, hydro-geotechnical engineering (dam, levee, reservoir, urban storm-water control, permeable pavements), renewable energy sources, recent attempts in CO2 and waste reduction, soil erosion and land preservation, and new space (underground, offshore, and planetary) development related geotechnical engineering.

Prof. Gye-Chun Cho
Prof. Dr. Ilhan Chang
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 papers will be 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. Energies 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 2000 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

  • Sustainability in geotechnical engineering
  • Geoenvironmental engineering
  • Climate change
  • Geotechnical engineering hazards
  • Soil erosion and scour
  • Sustainable urban development
  • Ground improvement materials and methods
  • Hydro-geotechnical engineering
  • Renewable energy
  • CO2 and waste reduction/recycling
  • Underground spaces
  • Bio-soils

Published Papers (2 papers)

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Research

Open AccessArticle
Acoustic Emission Characteristics and Joint Nonlinear Mechanical Response of Rock Masses under Uniaxial Compression
Energies 2021, 14(1), 200; https://doi.org/10.3390/en14010200 - 02 Jan 2021
Viewed by 352
Abstract
The joint arrangement in rock masses is the critical factor controlling the stability of rock structures in underground geotechnical engineering. In this study, the influence of the joint inclination angle on the mechanical behavior of jointed rock masses under uniaxial compression was investigated. [...] Read more.
The joint arrangement in rock masses is the critical factor controlling the stability of rock structures in underground geotechnical engineering. In this study, the influence of the joint inclination angle on the mechanical behavior of jointed rock masses under uniaxial compression was investigated. Physical model laboratory experiments were conducted on jointed specimens with a single pre-existing flaw inclined at 0°, 30°, 45°, 60°, and 90° and on intact specimens. The acoustic emission (AE) signals were monitored during the loading process, which revealed that there is a correlation between the AE characteristics and the failure modes of the jointed specimens with different inclination angles. In addition, particle flow code (PFC) modeling was carried out to reproduce the phenomena observed in the physical experiments. According to the numerical results, the AE phenomenon was basically the same as that observed in the physical experiments. The response of the pre-existing joint mainly involved three stages: (I) the closing of the joint; (II) the strength mobilization of the joint; and (III) the reopening of the joint. Moreover, the response of the pre-existing joint was closely related to the joint’s inclination. As the joint inclination angle increased, the strength mobilization stage of the joint gradually shifted from the pre-peak stage of the stress–strain curve to the post-peak stage. In addition, the instantaneous drop in the average joint system aperture (aave) in the specimens with medium and high inclination angles corresponded to a rapid increase in the form of the pulse of the AE activity during the strength mobilization stage. Full article
(This article belongs to the Special Issue Sustainable Geotechnical Engineering and Its Applications)
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Open AccessArticle
Numerical Study on Anisotropic Influence of Joint Spacing on Mechanical Behavior of Rock Mass Models under Uniaxial Compression
Energies 2020, 13(24), 6698; https://doi.org/10.3390/en13246698 - 18 Dec 2020
Viewed by 286
Abstract
Mechanical properties of rock masses are dominated by the nonlinear response of joints and their arrangement. In this paper, combined influences of joint spacing (s) and joint inclination angle (β) on mechanical behavior of rock mass models with large [...] Read more.
Mechanical properties of rock masses are dominated by the nonlinear response of joints and their arrangement. In this paper, combined influences of joint spacing (s) and joint inclination angle (β) on mechanical behavior of rock mass models with large open joints under uniaxial compression were investigated by PFC modeling. With a large amount of local measurement circles placed along the pre-defined measurement lines (ML), stresses and joint response parameters at different scales (the measurement circles, the MLs and the whole specimen) were defined and calculated. It was found that macroscopic behaviors of the jointed specimens, such as four types of deformation behaviors, four failure modes, strength, deformability modulus and ductility index, are dominated by nonlinear response of the joint system, especially the interaction between the joints and rock bridges. The joints may experience three stages, i.e., starting to close, closed and opening again. On the joint plane, the peak stresses of the rock bridges and those of the joints may not be reached at the same time; i.e., joint strength mobilization happens with the loss of the rock bridges’ resistance. The influence of s on specimen behavior is little for β = 90°, obvious for β = 0° or 30° and significant for β = 45° or 60°, and this can be related to their different microscopic damage mechanisms. Full article
(This article belongs to the Special Issue Sustainable Geotechnical Engineering and Its Applications)
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