The Seepage Evolution Mechanism of Variable Mass of Broken Rock in Karst Collapse Column under the Influence of Mining Stress
When the collapse column of overburden is disturbed by the working face, the grain loss in the karst collapse column occurs by the dissolution and corrosion of groundwater, thereby inducing the water inrush disaster. The test samples are prepared based on the fractal theory and the Talbol grading th...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-01-01
|
| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2023/7256937 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832546732407259136 |
|---|---|
| author | Li Xiao-Lei Li Xin-Lei Wang Yue Peng Wei-Hang Fan Xuan Cao Zheng-Zheng Liu Rui-Fu |
| author_facet | Li Xiao-Lei Li Xin-Lei Wang Yue Peng Wei-Hang Fan Xuan Cao Zheng-Zheng Liu Rui-Fu |
| author_sort | Li Xiao-Lei |
| collection | DOAJ |
| description | When the collapse column of overburden is disturbed by the working face, the grain loss in the karst collapse column occurs by the dissolution and corrosion of groundwater, thereby inducing the water inrush disaster. The test samples are prepared based on the fractal theory and the Talbol grading theory, and the seepage evolution law of fractured rock in collapse column under triaxial stress is studied, by employing the triaxial seepage test equipment. Besides, the seepage mechanics model of broken rock is established and calculated in the COMSOL Multiphysics, and the water-conducting channel under mass loss condition in the collapse column is further elucidated. The research results indicate that the loss ratio of mass is inversely proportional to the Talbol power index, and grain mass loss rate increases with the decrease of the Talbol power index. During the infiltration process, the evolution of pore structure is related with grain size distribution. With the increase of the Talbol power index, the overall porosity increases. Grain loss is an internal factor in seepage loss stability. Flow speed is accelerating, and seepage pathways are communicated with each other to induce the water inrush disaster. |
| format | Article |
| id | doaj-art-5d04dcc81b6c4eccabefeec1332eb838 |
| institution | Kabale University |
| issn | 1468-8123 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-5d04dcc81b6c4eccabefeec1332eb8382025-02-03T06:47:16ZengWileyGeofluids1468-81232023-01-01202310.1155/2023/7256937The Seepage Evolution Mechanism of Variable Mass of Broken Rock in Karst Collapse Column under the Influence of Mining StressLi Xiao-Lei0Li Xin-Lei1Wang Yue2Peng Wei-Hang3Fan Xuan4Cao Zheng-Zheng5Liu Rui-Fu6Zhaogu No.2 MineZhaogu No.2 MineHenan Key Laboratory of Underground Engineering and Disaster PreventionSchool of Physics & Electronic Information EngineeringHenan Key Laboratory of Underground Engineering and Disaster PreventionHenan Key Laboratory of Underground Engineering and Disaster PreventionStructural and Fire Safety EngineeringWhen the collapse column of overburden is disturbed by the working face, the grain loss in the karst collapse column occurs by the dissolution and corrosion of groundwater, thereby inducing the water inrush disaster. The test samples are prepared based on the fractal theory and the Talbol grading theory, and the seepage evolution law of fractured rock in collapse column under triaxial stress is studied, by employing the triaxial seepage test equipment. Besides, the seepage mechanics model of broken rock is established and calculated in the COMSOL Multiphysics, and the water-conducting channel under mass loss condition in the collapse column is further elucidated. The research results indicate that the loss ratio of mass is inversely proportional to the Talbol power index, and grain mass loss rate increases with the decrease of the Talbol power index. During the infiltration process, the evolution of pore structure is related with grain size distribution. With the increase of the Talbol power index, the overall porosity increases. Grain loss is an internal factor in seepage loss stability. Flow speed is accelerating, and seepage pathways are communicated with each other to induce the water inrush disaster.http://dx.doi.org/10.1155/2023/7256937 |
| spellingShingle | Li Xiao-Lei Li Xin-Lei Wang Yue Peng Wei-Hang Fan Xuan Cao Zheng-Zheng Liu Rui-Fu The Seepage Evolution Mechanism of Variable Mass of Broken Rock in Karst Collapse Column under the Influence of Mining Stress Geofluids |
| title | The Seepage Evolution Mechanism of Variable Mass of Broken Rock in Karst Collapse Column under the Influence of Mining Stress |
| title_full | The Seepage Evolution Mechanism of Variable Mass of Broken Rock in Karst Collapse Column under the Influence of Mining Stress |
| title_fullStr | The Seepage Evolution Mechanism of Variable Mass of Broken Rock in Karst Collapse Column under the Influence of Mining Stress |
| title_full_unstemmed | The Seepage Evolution Mechanism of Variable Mass of Broken Rock in Karst Collapse Column under the Influence of Mining Stress |
| title_short | The Seepage Evolution Mechanism of Variable Mass of Broken Rock in Karst Collapse Column under the Influence of Mining Stress |
| title_sort | seepage evolution mechanism of variable mass of broken rock in karst collapse column under the influence of mining stress |
| url | http://dx.doi.org/10.1155/2023/7256937 |
| work_keys_str_mv | AT lixiaolei theseepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT lixinlei theseepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT wangyue theseepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT pengweihang theseepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT fanxuan theseepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT caozhengzheng theseepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT liuruifu theseepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT lixiaolei seepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT lixinlei seepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT wangyue seepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT pengweihang seepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT fanxuan seepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT caozhengzheng seepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress AT liuruifu seepageevolutionmechanismofvariablemassofbrokenrockinkarstcollapsecolumnundertheinfluenceofminingstress |