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Water
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Mountain Hazards Caused by Extreme Events — Mechanism and Countermeasures
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Mountain Hazards Caused by Extreme Events — Mechanism and Countermeasures

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Hydrology".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 3958

Special Issue Editors

Prof. Dr. Yuanjun Jiang

E-Mail Website
Guest Editor
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
Interests: landslide; debris flow; impact force model; constitutive model of root and soil matrix; flexible barrier; solid–fluid transition
Dr. Heng Liang

E-Mail Website
Guest Editor
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
Interests: SPH; numerical simulation; landslide; debris flow; two-phase flow; dilatancy/contraction mechanism

Special Issue Information

Dear Colleagues,

Landslides are a typical hazard of rock and soil mass movement under the action of gravity which can cause serious casualties and huge property losses. The motion processes of different landslides can be incredibly diverse, but their rapid movement can cause significant harm. It is thus greatly important to develop technology for landslide identification, landslide dynamic process prediction, and landslide hazard prevention. This means that research on the instability mechanism of landslides, the dynamic mechanism of high-speed landslide motion, monitoring and early warning technology, the numerical simulation method, and support and blocking technology of landslides can help to establish a system for landslide early warning, prediction, and protection systems to mitigate the harm caused by landslides.

Given this scientific framework, we would like to invite scientists involved in this research field to contribute to this Special Issue, which will focus on experiments, numerical simulation methods, and engineering projects on landslide starting, motion, and prevention. Research to reveal the mechanical mechanism or evolution characteristics of landslide instability, dynamic processes, and prevention technology will be emphasized. The monitoring and early warning methods of landslides that involve multiscale integration and multidisciplinary integration are also of interest.

Prof. Dr. Yuanjun Jiang
Dr. Heng Liang
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. Water 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 2600 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

  • landslide
  • monitoring and early warning
  • dynamic mechanism
  • numerical simulation
  • prevention technology
  • instability mechanism

Published Papers (2 papers)

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Research

15 pages, 23317 KiB  
Article
Mechanism Analysis and Process Inversion of the “7.26” Landslide in the West Open-Pit Mine of Fushun, China
by Huajun Meng, Jihuan Wu, Chunshan Zhang and Kungang Wu
Water 2023, 15(14), 2652; https://doi.org/10.3390/w15142652 - 22 Jul 2023
Viewed by 1211
Abstract
Mine landslides are geological disasters with the highest frequency and cause the greatest harm worldwide. This typically causes significant casualties and damage to property. The study of the formation mechanisms and kinematic processes of mine landslides is important for the prevention and control [...] Read more.
Mine landslides are geological disasters with the highest frequency and cause the greatest harm worldwide. This typically causes significant casualties and damage to property. The study of the formation mechanisms and kinematic processes of mine landslides is important for the prevention and control of mine geological disasters and mine production safety. This study examined the “7.26” landslide, which occurred in the West Open-pit Mine of Fushun, China, in 2016, based on detailed investigations, interferometric synthetic aperture radar (InSAR) monitoring, and numerical simulations. The mechanism of landslide formation was explored, its kinematic process was inverted, and its disaster evolution process was summarized. The results indicate that: (1) For the formation mechanism of the “7.26” landslide, in July 2015, the old sliding mass was reactivated and deformed along the dominant joints in the shale. The following year, owing to continuous rainfall during the rainy season, the sliding surface accelerated its connection. Finally, a rainstorm on 25–26 July 2016, triggered slope instability. (2) The process of continued movement after landslide instability was approximately 250 s. It can be divided into the landslide initiation (0–10 s), collision scraping (10–150 s), and accumulation stages (150–250 s). (3) The entire process of landslide disasters includes four stages. During the weak-deformation stage, the maximum deformation of the sliding mass monitored by InSAR was approximately 50 mm. During the strong deformation stage, the tensile cracks at the rear edge of the landslide continued to expand, and shear outlets at the front edge had already formed. During the instability and failure stages, rainstorms trigger slope instability, leading to landslides. During the sliding accumulation stage, the landslide mass transformed into debris flow along the slope surface and accumulated at the bottom of the pit. This study provides a theoretical basis for the subsequent evaluation, treatment, monitoring, and warning of landslides in the Fushun West Open-pit Mine and other deep excavation open-pit mines. Full article
(This article belongs to the Special Issue Mountain Hazards Caused by Extreme Events — Mechanism and Countermeasures)
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14 pages, 4969 KiB  
Article
Research on the Early Warning Model for Pipelines Due to Landslide Geohazards under Multiple Influencing Factors
by Po Ning, Yuan-jun Jiang, Jun-jie Tang and Qi-jun Xie
Water 2023, 15(4), 693; https://doi.org/10.3390/w15040693 - 9 Feb 2023
Cited by 4 | Viewed by 2306
Abstract
Because of the wide distribution of overland oil and gas pipelines, some pipelines will unavoidably pass through landslide-prone mountainous areas. Landslides may cause deformation or even damage to pipelines, affecting the normal working of the pipeline system. Therefore, it is necessary to study [...] Read more.
Because of the wide distribution of overland oil and gas pipelines, some pipelines will unavoidably pass through landslide-prone mountainous areas. Landslides may cause deformation or even damage to pipelines, affecting the normal working of the pipeline system. Therefore, it is necessary to study the multiple influence factors of pipeline deformation caused by landslides and establish a forewarning model for oil and gas pipelines buried in landslides. In the present research, the field investigation and a series of large deformation numerical simulations are conducted along four pipelines located in the southeast region of China. Results show that small soil landslides are the main types of landslides threatening the safety of pipelines, whose deformation degree mainly depends on the scale of the landslides and the location of the pipelines in the landslides. Through the investigation, the scale of landslides is the main factor determining the deformation of pipelines induced by landslides. Considering the variation of the scale of landslides, with the increase of the angles, thicknesses, and lengths of the landslides, the pipeline deformation keeps increasing. When crossing the landslides laterally, the pipeline buried in the leading edge of landslides is safer than in the tail edge. What is more, it is most dangerous when the pipeline is buried in the middle of a landslide. Considering the variation of the scale of landslides, including the longitudinal length, horizontal width, thickness, and slope of landslides, as well as the location of pipelines in the landslides, a piecewise forewarning model including those parameters was established based on the influence function for crossing pipelines in landslides. The proposed forewarning model can be used for monitoring and evaluating landslide geological disasters of pipelines and reduce the risk of pipeline landslide geological hazards in the monitored area effectively. Full article
(This article belongs to the Special Issue Mountain Hazards Caused by Extreme Events — Mechanism and Countermeasures)
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