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Sustainability
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Sustainability Assessment and Optimization of Geotechnical Engineering
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Sustainability Assessment and Optimization of Geotechnical Engineering

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Engineering and Science".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 3145

Special Issue Editors

Prof. Dr. Darn-Horng Hsiao

E-Mail Website
Guest Editor
Department of Civil Engineering, National Kaohsiung University of Sciences and Technology, Kaohsiung City 807618, Taiwan
Interests: sustainability for geotechnical engineering; earthquake disaster prevention; slope and debris disaster prevention; liquefaction; risk analysis; ground improvement
Prof. Dr. Bin-Chen Benson Hsiung

E-Mail Website
Guest Editor
Department of Civil Engineering, National Chung Hsing University, Taichung City 402, Taiwan
Interests: deep excavation; shield tunneling; geotechnical monitoring; soil–structure interaction analyses; numerical simulation; soil improvement and offshore foundation

Special Issue Information

Dear Colleagues,

Nowadays, the uncertainties and risks of extreme weather, climate change and COVID-19 are ever-prevalent, posing great risk to human assets and well-being. Scholars and engineers should focus their attention on so-called “safe construction” to aid in disaster prevention and engineering optimization and drive sustainable development, especially in the field of geotechnical engineering. This Special Issue, “Sustainability Assessment and Optimization of Geotechnical Engineering”, aims to address the optimization of engineering projects to advance regional and social sustainability. First, it will assess the impacts of natural disasters, including earthquakes, slope sliding, flooding and debris flow, and related disaster prevention methods. The application and integration of innovative measurement and monitoring technologies will also be explored. Second, advanced materials, soil stabilization and improvement technologies that satisfy sustainable development goals will be included. Ecological engineering has developed quickly in recent years, allowing for environmental protection, energy saving and carbon reduction and the mitigation of extreme weather in civil engineering. Lastly, we hope to cover additional issues related to renewable energy and engineering optimization in urban areas, such as offshore foundations, deep excavation and tunneling under various environments and innovative technologies for improving ground conditions. We are thus seeking in-depth discussions on important case studies on the aforementioned topics.  Submitted manuscripts will be peer-reviewed, and those accepted will be promptly published in the open access journal Sustainability.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but not limited to) the following:

  • geotechnical engineering to meet sustainability challenges;
  • sustainability assessment;
  • sustainability optimization;
  • case studies;
  • earthquakes;
  • slope instability;
  • flooding;
  • debris flow;
  • geological consideration for sustainability;
  • highly advanced survey technology;
  • construction planning and management;
  • advanced sustainability materials;
  • soil stabilization and improvement;
  • ecological engineering;
  • environment protection;
  • extreme climate changes;
  • energy saving and low carbon emissions;
  • renewable energy;
  • offshore foundations;
  • deep excavation and tunneling in urban areas

Prof. Dr. Darn-Horng Hsiao
Prof. Dr. Bin-Chen Benson Hsiung
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. Sustainability 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

  • geotechnical engineering for sustainability
  • sustainability assessment
  • sustainability optimization
  • geotechnical monitoring
  • risk analysis

Published Papers (2 papers)

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Research

17 pages, 4762 KiB  
Article
A Study on the Impacts of One-Strut Failure Scenarios for Deep Excavation in Loose to Medium-Dense Sand
by Bin-Chen Benson Hsiung, Khac-Hai Phan and Darn-Horng Hsiao
Sustainability 2023, 15(13), 10530; https://doi.org/10.3390/su151310530 - 4 Jul 2023
Viewed by 1282
Abstract
This study aims to identify the impacts of one-strut failure (OSF) during deep excavation in loose to medium-dense sand with respect to strut loads and wall deflections. The finite element software PLAXIS was used to carry out both 2D and 3D analyses. In [...] Read more.
This study aims to identify the impacts of one-strut failure (OSF) during deep excavation in loose to medium-dense sand with respect to strut loads and wall deflections. The finite element software PLAXIS was used to carry out both 2D and 3D analyses. In addition, as two-dimensional (2D) analysis is commonly applied in engineering practice due to limited budget and time, the reasonable transferring of results obtained using 3D analyses to 2D analyses for OSF influences was explored. It was found that a failed strut located at the lowest level at the center of the excavation is the most critical case since it causes the most significant impacts on strut load transferring and additional wall deflection. In order to adequately demonstrate such impacts using 2D analyses, it is suggested that a reduction factor of axial stiffness of 2.5 should be adopted instead of removing an entire level of struts, as currently being used in 2D analyses of OSF. Full article
(This article belongs to the Special Issue Sustainability Assessment and Optimization of Geotechnical Engineering)
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21 pages, 8608 KiB  
Article
Effect of High Temperature on the Expansion and Durability of SSRSC
by Keng-Ta Lin, Her-Yung Wang, Yi-Ta Hsieh and Tien-Chun Kao
Sustainability 2023, 15(13), 9951; https://doi.org/10.3390/su15139951 - 22 Jun 2023
Viewed by 979
Abstract
This study explores the potential of using stainless steel slag, an industrial by-product of the stainless steel refining process, as a substitute for cement in concrete to promote material reuse and ecological sustainability. The research involves preparing concrete a cylindrical specimen with varying [...] Read more.
This study explores the potential of using stainless steel slag, an industrial by-product of the stainless steel refining process, as a substitute for cement in concrete to promote material reuse and ecological sustainability. The research involves preparing concrete a cylindrical specimen with varying levels of substitution, ranging from 0 to 20%, and curing them for different ages (1, 3, 7, 28, and 56 days) to evaluate the engineering durability of the resulting stainless steel reducing slag concrete (SSRSC). The study found that the compressive strength of the SSRSC at 28 days was 27.44 MPa, with a splitting strength ranging from 12.81 MPa to 15.34 MPa. As the substitution amount increased, the strength decreased, but there was a positive correlation between the compressive and splitting strength. The ultrasonic wave velocity growth also increased with each substitution amount, showing that the compactness and growth of the samples improved. The surface resistance of all the samples was lower than 20 kΩ-cm, indicating that the porosity and change in porosity caused by substitution were minimal. Regarding durability, the study found that high-temperature fire damage at 200 °C catalyzed the quality, compressive strength, and resistance, but the ultrasonic wave velocity decreased. After fire damage at 600 °C and 800 °C, the compressive strength of the samples decreased by 48–57% and 76–85%, respectively, indicating that higher temperatures have a greater effect on concrete and resistance to early aging. In terms of sulfate corrosion resistance, a higher substitution amount reduced the likelihood of spalling during the early stages of the cycle, and the cumulative weight after the fifth cycle was higher than that of the control group. The autoclave expansion test revealed that the later curing age of the sample, the greater the expansion and the amount of substitution. The porosity of the samples also increased with higher temperatures and substitution amounts. Full article
(This article belongs to the Special Issue Sustainability Assessment and Optimization of Geotechnical Engineering)
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