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Discrete element modeling of a mining-induced rock slide
Slopes are subjected to stress redistributions during underground mining activities, and this may eventually cause deformation or landslide. This paper takes Madaling landslide in Guizhou Province, China as a case study to investigate the failure mechanism and its run-out behaviours by using discret...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer International Publishing
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5031570/ https://www.ncbi.nlm.nih.gov/pubmed/27722051 http://dx.doi.org/10.1186/s40064-016-3305-z |
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author | Zhao, JianJun Xiao, JianGuo Lee, Min Lee Ma, YunTao |
author_facet | Zhao, JianJun Xiao, JianGuo Lee, Min Lee Ma, YunTao |
author_sort | Zhao, JianJun |
collection | PubMed |
description | Slopes are subjected to stress redistributions during underground mining activities, and this may eventually cause deformation or landslide. This paper takes Madaling landslide in Guizhou Province, China as a case study to investigate the failure mechanism and its run-out behaviours by using discrete element method. Previous qualitative analysis indicated that the slope experienced four stages of failure mechanisms: (1) development of tension cracks, (2) development of stepped-like creep cracks, (3) development of potential rupture surfaces, and (4) occurrence of the landslide. PFC2D program was employed to model the pre-failure deformation characteristics in order to verify the failure mechanisms quantitatively. Subsequently, the run-out behaviours of the landslide were analyzed by PFC3D program. The results indicated that the movement could be summarized into four stages: acceleration stage, constant movement stage, rapid movement stage, and deceleration and deposition stage. |
format | Online Article Text |
id | pubmed-5031570 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Springer International Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-50315702016-10-09 Discrete element modeling of a mining-induced rock slide Zhao, JianJun Xiao, JianGuo Lee, Min Lee Ma, YunTao Springerplus Research Slopes are subjected to stress redistributions during underground mining activities, and this may eventually cause deformation or landslide. This paper takes Madaling landslide in Guizhou Province, China as a case study to investigate the failure mechanism and its run-out behaviours by using discrete element method. Previous qualitative analysis indicated that the slope experienced four stages of failure mechanisms: (1) development of tension cracks, (2) development of stepped-like creep cracks, (3) development of potential rupture surfaces, and (4) occurrence of the landslide. PFC2D program was employed to model the pre-failure deformation characteristics in order to verify the failure mechanisms quantitatively. Subsequently, the run-out behaviours of the landslide were analyzed by PFC3D program. The results indicated that the movement could be summarized into four stages: acceleration stage, constant movement stage, rapid movement stage, and deceleration and deposition stage. Springer International Publishing 2016-09-21 /pmc/articles/PMC5031570/ /pubmed/27722051 http://dx.doi.org/10.1186/s40064-016-3305-z Text en © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Research Zhao, JianJun Xiao, JianGuo Lee, Min Lee Ma, YunTao Discrete element modeling of a mining-induced rock slide |
title | Discrete element modeling of a mining-induced rock slide |
title_full | Discrete element modeling of a mining-induced rock slide |
title_fullStr | Discrete element modeling of a mining-induced rock slide |
title_full_unstemmed | Discrete element modeling of a mining-induced rock slide |
title_short | Discrete element modeling of a mining-induced rock slide |
title_sort | discrete element modeling of a mining-induced rock slide |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5031570/ https://www.ncbi.nlm.nih.gov/pubmed/27722051 http://dx.doi.org/10.1186/s40064-016-3305-z |
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