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Advances in Sustainable Eco-Geotechnics
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Advances in Sustainable Eco-Geotechnics

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

Deadline for manuscript submissions: closed (10 November 2023) | Viewed by 4061

Special Issue Editor

Dr. Chong Wang

E-Mail Website
Guest Editor
School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China
Interests: ecology and frozen soil; geological disaster; geological engineering

Special Issue Information

Dear Colleagues,

Soil-related disasters such as slope failure and sandstorms are becoming more frequent worldwide due to climate change and increasing human engineering activities. These disasters have not only caused huge losses of people’s lives and property but also seriously damaged the ecological environment. For the sustainable development of humankind, scientists have established and developed an emerging interdisciplinary discipline in recent years, namely ecological geotechnical engineering, to address major world challenges such as climate change.

Topics of interest include but are not limited to the following:

  • Soil mechanics;
  • Rock mechanics;
  • Ecology;
  • Biology;
  • Atmospheric science.

Dr. Chong Wang
Guest Editor

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

  • sustainability
  • eco-geotechnics
  • atmosphere–plant–soil interactions
  • ecology
  • unsaturated soil mechanics

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Published Papers (2 papers)

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Research

15 pages, 4475 KiB  
Article
The Influence of Vegetation Cover on the Settlement Behavior of Permafrost Subgrade in the Greater Khingan Mountains Forest Region
by Zhibo Xu, Guihe Wang and Wu Chen
Appl. Sci. 2023, 13(8), 5036; https://doi.org/10.3390/app13085036 - 17 Apr 2023
Cited by 2 | Viewed by 1659
Abstract
The subgrade construction in the permafrost forest region will aggravate the degradation of frozen soil, which will lead to the settlement of the subgrade. Based on the road project of National Highway 332 in the Great Khingan Mountains, by means of field observation, [...] Read more.
The subgrade construction in the permafrost forest region will aggravate the degradation of frozen soil, which will lead to the settlement of the subgrade. Based on the road project of National Highway 332 in the Great Khingan Mountains, by means of field observation, experimental testing, and numerical simulation, a thermo-hydro-mechanical coupling numerical model of the permafrost subgrade considering vegetation cover was established to analyze the influence of vegetation cover on the settlement behavior of the permafrost subgrade. The study indicates that vegetation cover mainly influences the seasonal active layer temperature of permafrost, and its cooling effect on permafrost in the warm season is more significant compared with the warming effect in the cold season. The volumetric water content of the subgrade with vegetation cover is greater than that without vegetation cover in the cold season. The situation is just the opposite in the warm season. The damage to the subgrade is mainly reflected in the settlement caused by the thawing of frozen soil. The maximum settlement of the subgrade with and without vegetation cover is 8.3 mm and 9.5 mm at the foot of the subgrade slope. After construction, the settlement behavior of the permafrost subgrade will undergo a degradation period of 3 years, a restoration period of 2 years, and finally, tend to be stable. Full article
(This article belongs to the Special Issue Advances in Sustainable Eco-Geotechnics)
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19 pages, 32206 KiB  
Article
Experimental and Statistical Studies of the Microstructure Characteristics of Nano-Silica-Modified Silty Clay in the Qinghai–Tibet Plateau
by Kunyu Li, Chong Wang, Jianguo Li, Liang Xie, Yumo Wu and Shuangyang Li
Appl. Sci. 2023, 13(5), 3074; https://doi.org/10.3390/app13053074 - 27 Feb 2023
Viewed by 1738
Abstract
Nanomaterials have been widely used for improving the physicochemical properties of geomaterials. However, quantitative interpretation of the microscopic mechanisms is still not well understood. In this study, a statistical principle was applied to study the microscopic characteristics of nano-silica (NS) modified silty clay. [...] Read more.
Nanomaterials have been widely used for improving the physicochemical properties of geomaterials. However, quantitative interpretation of the microscopic mechanisms is still not well understood. In this study, a statistical principle was applied to study the microscopic characteristics of nano-silica (NS) modified silty clay. We use mercury intrusion porosimetry (MIP) to measure the micro-pore parameters (median pore diameter and cumulative volume of pore diameters smaller than 0.1 µm) based on various NS-modified silty clays (NS mass contents 0, 0.25%, 1%, and 3%). The test results indicate two micro-pore parameters have significant randomness and uncertainty, and soil pores become smaller and more compacted. Furthermore, four potential probability distributions were selected to compare with measured data. All distributions agree excellently with the experimental data, and three distributions satisfy the hypothesis testing, except the Weibull distribution. Finally, according to the information spread estimation method and chi-square test effect evaluation indexes, the normal distribution was proposed because it has the optimal described effect for the statistical characteristics of NS-modified silty clay. These results have important implications for understanding the randomness and evolution of microstructures of NS geomaterials, which are helpful to guide the evaluation of freezing process and water transport in modified soils. Full article
(This article belongs to the Special Issue Advances in Sustainable Eco-Geotechnics)
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