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Geomechanics, Slope Stability and Sustainability

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Dear Colleagues,

Geomechanics, slope stability, and sustainability are fundamental areas of study within the field of engineering geology and civil engineering. Geomechanics encompasses the investigation of soil and rock behavior under various loading or unloading conditions, while slope stability focuses on the assessment and mitigation of risks associated with unstable slopes. In recent years, there has been a growing recognition of the importance of incorporating sustainability principles into geomechanical engineering practices.

Advances in experimental, analytical, and numerical techniques for characterizing and modeling geomechanical properties in this field are necessary. This Special Issue seeks to collect articles that address innovative approaches for analyzing slope stability, predicting failure mechanisms, designing effective stabilization measures, and assessing the risk of landslides. Additionally, we encourage research that explores the intersection of geomechanics and sustainability, such as sustainable construction materials for geotechnical applications, eco-friendly slope stabilization methods, geotechnical aspects of renewable energy projects, or life cycle assessment of geotechnical works. The goal of this Special Issue is to provide a platform for researchers and practitioners to share their experiences, knowledge, and research outcomes in geomechanics, slope stability, and sustainability, and to promote sustainable and resilient infrastructure development and natural hazard management.

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

Soil mechanics/rock mechanics;
Analytical, physical and numerical techniques in slope stability;
Sensors and monitoring techniques for geohazards;
Artificial intelligence, remote sensing technology, and landslide susceptibility mapping;
Slope stabilization and landslide mitigation;
Sustainability principles in geomechanical engineering practices.

We look forward to receiving your contributions.

Prof. Dr. Qiong Wu
Prof. Dr. Rui Yong
Dr. Kun Fang
Dr. Tao Wen
Guest Editors

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Keywords

geomechanics
physical modelling
numerical modelling
slope stability
remote sensing
landslide susceptibility mapping
slope stabilization
landslide mitigation
artificial intelligence
sustainability

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14 pages, 5230 KiB

Open AccessArticle

Cyclic Loading and Unloading of Weakly Consolidated Sandstone with Various Water Contents

by Yaxin Long, Lihui Sun, Zhenyu Cai, Zhixin Jiang, Zongze Wang, Qingfeng He and Zhong Bai

Sustainability 2023, 15(18), 13866; https://doi.org/10.3390/su151813866 - 18 Sep 2023

Cited by 1 | Viewed by 643

Abstract

Weakly cemented rocks have a loose structure, poor mechanical properties, and soften and disintegrate upon contact with water. Mining operations cause damage and ruptures to rocks under cyclic loading and unloading, leading to serious disasters. This study investigated the effects of cyclic loading and unloading on the mechanical properties of weakly cemented sandstone (WCS) with various water contents (0–7.72%). A numerical model based on the particle flow theory simulated the behavior of WCS particles. The stress–strain relationships, damage and rupture patterns, energy evolution, and damage properties of WCS were examined using loading–unloading simulations. Water negatively affected the strength and elastic modulus of WCS. High water contents (>2.31%) increased the rupture probability and affected the rupture modes. Ruptures mainly occurred via the main fissure and caused cleavage damage; however, instances of tensile damage and shear slippage increased with an increasing water content. The elastic, dissipation, and total energies gradually increased with increasing cyclic loading and unloading. The damage factors of WCS with different water contents gradually increased with the growth rate. The mechanical properties of the sandstone were deteriorated by water, which increased the peak value of the damage factor from 0.77 for 0% moisture to 0.81 for 7.72% moisture. Full article

(This article belongs to the Special Issue Geomechanics, Slope Stability and Sustainability)

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20 pages, 8911 KiB

Open AccessArticle

Study on the Characteristics of Granite in Different Stress Stages through a Cyclic Loading Experiment

by Handong Liu, Jialiang Wang, Huaichang Yu and Yiying Zhang

Sustainability 2023, 15(17), 12832; https://doi.org/10.3390/su151712832 - 24 Aug 2023

Viewed by 856

Abstract

The deformation and failure process of rocks is a gradual process. The purpose of this study was to examine the characteristics of rocks in different stages through a cyclic loading experiment. The experiment was carried out based on the MTS815 rock mechanics test system combined with acoustic emission monitoring equipment to study the typical characteristics of two kinds of granite in the stages of crack closure, linear elastic deformation, crack initiation and stable crack growth, along with crack damage and unstable crack growth. The results showed that there were significant differences in the characteristics of the strain response, energy evolution, and acoustic emission of the two granites in the different stages. Although the microstructure and mineral elements of the two granites are different, the characteristics of the two granites in the same stage were similar, indicating that the stage characteristics of brittle rocks in the failure process may be widespread and have significant similarities. Full article

(This article belongs to the Special Issue Geomechanics, Slope Stability and Sustainability)

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