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Geological Disasters: Mechanisms, Detection, and Prevention

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

Deadline for manuscript submissions: 1 July 2026 | Viewed by 1011

Special Issue Editors


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Guest Editor
Faculty of Engineering, China University of Geosciences, Wuhan 430074, China
Interests: engineering geology; geological hazards of oil and gas pipelines; landslides; mechanical testing

E-Mail Website
Guest Editor
Faculty of Engineering, China University of Geosciences, Wuhan, China
Interests: engineering geology; geological disasters; environmental geotechnical engineering; soil–water interaction; permeability of sediments
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Earthquake activity reached a peak with the 9.0-magnitude earthquake off the coast of Sumatra on 26 December 2004, marking the onset of a high-frequency period for magnitude 8 earthquakes. This situation resembles the frequent occurrence of magnitude 8 earthquakes worldwide during the first half of the 20th century, and this trend may be set to continue. Earthquakes can trigger significant geological disasters, thereby endangering human life and hindering social and economic development. Therefore, we encourage scientists to conduct effective research on the entire lifecycle of geological disasters (the mechanisms by which they arise, and their detection and prevention). Comprehensive content related to geological disasters is highly encouraged, and this may include field surveys of geological hazards, data collection and analysis, mechanism analysis, and related content such as geological hazard prediction and prevention.

Prof. Dr. Qinglu Deng
Dr. Xingwei Ren
Guest Editors

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Keywords

  • seismic geological hazards
  • landslide
  • landslide susceptibility
  • slope stability
  • geotechnics
  • pipeline
  • frozen soil mechanics

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Published Papers (2 papers)

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Research

18 pages, 3858 KB  
Article
Failure Mode and Mechanisms of Gneiss Open-Pit Slopes in Cold Regions—A Case Study of the 14 September 2023 Landslide at the Jinbao Mine in Xinjiang, China
by Lihui Han, Yangjie Guo, Hechuan Yan, Jiaming Yuan and Ming Zhang
Appl. Sci. 2025, 15(21), 11786; https://doi.org/10.3390/app152111786 - 5 Nov 2025
Viewed by 298
Abstract
Extensive high and steep open-pit slopes in gneiss are distributed in cold regions at high altitudes or high latitudes of China, such as Qinghai, Tibet, and Xinjiang, posing significant hazards to mine safety. Several recent slope failure incidents highlight the urgent need to [...] Read more.
Extensive high and steep open-pit slopes in gneiss are distributed in cold regions at high altitudes or high latitudes of China, such as Qinghai, Tibet, and Xinjiang, posing significant hazards to mine safety. Several recent slope failure incidents highlight the urgent need to study the failure modes and mechanisms of gneiss open-pit slopes in these cold regions. This study focuses on the 14 September 2023 landslide at the Jinbao Mine in Xinjiang. Initially, field investigation and displacement monitoring were employed to analyze its failure characteristics and mode. Subsequently, utilizing mechanical parameters of the gneissic foliation and the rock mass obtained under various conditions, discrete element numerical modeling was conducted to study the failure mechanisms. The results indicate that the landslide was a typical bedding failure characterized by an upper bedding-controlled sliding zone, combined with buckling and crushing of the slope toe. Under the long-term combined effects of rainfall, freeze–thaw cycles and blasting, the shear strength of the gneissic foliation decreased. This reduction led to a decrease in the anti-sliding force and an increase in the sliding force within the upper bedding-controlled sliding zone. Consequently, the load transferred to the rock mass at the slope toe progressively increased. Under prolonged compression, the toe rock mass experienced bending, which intensified over time. Coupled with the strength reduction caused by the repeated action of rainfall, freeze–thaw cycles and blasting, the toe rock mass gradually fractured and ultimately failed in a buckling mode. This led to the loss of support for the upper mass, which then subsided along the foliation, precipitating the landslide’s overall instability. Full article
(This article belongs to the Special Issue Geological Disasters: Mechanisms, Detection, and Prevention)
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16 pages, 2677 KB  
Article
Consolidation Efficacy of Nano-Barium Hydroxide on Neogene Sandstone
by Yujia Wang, Ruitao Gao, Yingbo Wu, Xuwei Yang, Guirong Wei and Jianwen Chen
Appl. Sci. 2025, 15(19), 10617; https://doi.org/10.3390/app151910617 - 30 Sep 2025
Viewed by 433
Abstract
This study focuses on the sandstone of the Kizil Grottoes as the research object. Sandstone samples reinforced with barium hydroxide nanoparticle (Ba(OH)2) solutions at different concentrations were subjected to mass and deformation monitoring, wave velocity tests, triaxial shear tests, and conventional [...] Read more.
This study focuses on the sandstone of the Kizil Grottoes as the research object. Sandstone samples reinforced with barium hydroxide nanoparticle (Ba(OH)2) solutions at different concentrations were subjected to mass and deformation monitoring, wave velocity tests, triaxial shear tests, and conventional mercury intrusion porosimetry (MIP) to investigate the reinforcement mechanism and effectiveness of nano-Ba(OH)2 on Kizil sandstone. The results indicate that after treatment with nano-Ba(OH)2, the strength and wave velocity of the sandstone samples significantly increased, with the 15% concentration showing the optimal reinforcement effect. Nano-Ba(OH)2 enhances the cementation between sandstone particles, alters pore morphology and size distribution, reduces capillary water rise height, and inhibits sulfate ion crystallization and recrystallization, thereby achieving the dual effects of strength reinforcement and deterioration prevention. Full article
(This article belongs to the Special Issue Geological Disasters: Mechanisms, Detection, and Prevention)
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