Failure mode and mechanism of mine waste dump with a soft and steep layer base
The waste dump of Tibet Jiama Copper Mine, which has a steep and soft base, is taken as the engineering background to reveal the failure mode and mechanism with assistance of similarity simulation principle.Using a method combining bottom friction test and numerical simulation.The deformation evolut...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Emergency Management Press
2021-04-01
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| Series: | 矿业科学学报 |
| Subjects: | |
| Online Access: | http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2021.02.001 |
| _version_ | 1811192640758087680 |
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| author | Wang Jiachen Li Yangchun Xu Wenbin Luan Maoxu |
| author_facet | Wang Jiachen Li Yangchun Xu Wenbin Luan Maoxu |
| author_sort | Wang Jiachen |
| collection | DOAJ |
| description | The waste dump of Tibet Jiama Copper Mine, which has a steep and soft base, is taken as the engineering background to reveal the failure mode and mechanism with assistance of similarity simulation principle.Using a method combining bottom friction test and numerical simulation.The deformation evolution of the waste dump is obtained by the contactless displacement monitoring system.The experimental results show that: ①The deformation and instability of the soft steep base dump can be divided into three stages: unloading deformation at the slope toe, vertical tensile crack penetration and tensile crack propagation.②The soft soil layer at the base is compressed and the soft soil layer at the slope toe is subjected to shearing.The slope toe is the trigger zone for slipping deformation and instability.③The potential slip surface passes through the soft soil layer to form an approximate circular arc slip surface.The instability failure of the soft-steep base dump mainly presents the modes of settlement, cracking and slippage. |
| first_indexed | 2024-04-11T23:55:46Z |
| format | Article |
| id | doaj.art-f8d784b65ef54e5981c9236b75138173 |
| institution | Directory Open Access Journal |
| issn | 2096-2193 |
| language | English |
| last_indexed | 2024-04-11T23:55:46Z |
| publishDate | 2021-04-01 |
| publisher | Emergency Management Press |
| record_format | Article |
| series | 矿业科学学报 |
| spelling | doaj.art-f8d784b65ef54e5981c9236b751381732022-12-22T03:56:22ZengEmergency Management Press矿业科学学报2096-21932021-04-016213914710.19606/j.cnki.jmst.2021.02.00120210201Failure mode and mechanism of mine waste dump with a soft and steep layer baseWang Jiachen0Li Yangchun1Xu Wenbin2Luan Maoxu3School of Energy and Mining Engineering, China University of Mining & Technology-Beijing, Beijing 100083, ChinaSchool of Energy and Mining Engineering, China University of Mining & Technology-Beijing, Beijing 100083, ChinaSchool of Energy and Mining Engineering, China University of Mining & Technology-Beijing, Beijing 100083, ChinaSchool of Energy and Mining Engineering, China University of Mining & Technology-Beijing, Beijing 100083, ChinaThe waste dump of Tibet Jiama Copper Mine, which has a steep and soft base, is taken as the engineering background to reveal the failure mode and mechanism with assistance of similarity simulation principle.Using a method combining bottom friction test and numerical simulation.The deformation evolution of the waste dump is obtained by the contactless displacement monitoring system.The experimental results show that: ①The deformation and instability of the soft steep base dump can be divided into three stages: unloading deformation at the slope toe, vertical tensile crack penetration and tensile crack propagation.②The soft soil layer at the base is compressed and the soft soil layer at the slope toe is subjected to shearing.The slope toe is the trigger zone for slipping deformation and instability.③The potential slip surface passes through the soft soil layer to form an approximate circular arc slip surface.The instability failure of the soft-steep base dump mainly presents the modes of settlement, cracking and slippage.http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2021.02.001soft layersteep basewaste dumpfailure modefailure mechanism |
| spellingShingle | Wang Jiachen Li Yangchun Xu Wenbin Luan Maoxu Failure mode and mechanism of mine waste dump with a soft and steep layer base 矿业科学学报 soft layer steep base waste dump failure mode failure mechanism |
| title | Failure mode and mechanism of mine waste dump with a soft and steep layer base |
| title_full | Failure mode and mechanism of mine waste dump with a soft and steep layer base |
| title_fullStr | Failure mode and mechanism of mine waste dump with a soft and steep layer base |
| title_full_unstemmed | Failure mode and mechanism of mine waste dump with a soft and steep layer base |
| title_short | Failure mode and mechanism of mine waste dump with a soft and steep layer base |
| title_sort | failure mode and mechanism of mine waste dump with a soft and steep layer base |
| topic | soft layer steep base waste dump failure mode failure mechanism |
| url | http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2021.02.001 |
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