Influence of Elevation on Slake Durability Index of Quartz Mica Schist: A Case Study of East Slope of Manjiazhai Open Pit
In order to study the influence of elevation on the slake durability index of the quartz mica schist, the quartz mica schist with different elevations on the east slope of the Manjiazhai open-pit mine is taken as the research object, and based on laboratory tests and statistical analysis, the variat...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/6006940 |
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| author | Yongfeng Lu Kepeng Hou Huafen Sun Wei Sun Shengyou Zhang Jun Jiang |
| author_facet | Yongfeng Lu Kepeng Hou Huafen Sun Wei Sun Shengyou Zhang Jun Jiang |
| author_sort | Yongfeng Lu |
| collection | DOAJ |
| description | In order to study the influence of elevation on the slake durability index of the quartz mica schist, the quartz mica schist with different elevations on the east slope of the Manjiazhai open-pit mine is taken as the research object, and based on laboratory tests and statistical analysis, the variation of negative correlation between the slake durability index and elevation is obtained. The disintegration mechanism of quartz mica schist at different elevations is also discussed. The test results show that the disintegration characteristics of quartz mica schist at different elevations are related to its mineral composition, fissure channel size, and rock damage effect. As the slope height increases, the ratio of mica to quartz in the rock increases, and the greater the porosity of the rock, the more fissures in the rock, the greater the permeability coefficient, and the more obvious the change of effective stress of rock under osmotic pressure. At the same time, the higher the slope elevation of open-pit mine, the longer the weathering time of rock, the higher the cumulative damage of rock, and the lower the rock slake durability index. This study provides a new idea for guiding the research on the disintegration characteristics of similar soft rock slopes in the elevation direction. |
| format | Article |
| id | doaj-art-f7e100a6dc054be4a5728b2285de1188 |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-f7e100a6dc054be4a5728b2285de11882025-02-03T01:04:45ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/6006940Influence of Elevation on Slake Durability Index of Quartz Mica Schist: A Case Study of East Slope of Manjiazhai Open PitYongfeng Lu0Kepeng Hou1Huafen Sun2Wei Sun3Shengyou Zhang4Jun Jiang5School of Land and Resources EngineeringSchool of Land and Resources EngineeringSchool of Land and Resources EngineeringYunnan Key Laboratory of Sino-German Blue Mining and Utilization of Special Underground SpaceSchool of Land and Resources EngineeringSchool of Land and Resources EngineeringIn order to study the influence of elevation on the slake durability index of the quartz mica schist, the quartz mica schist with different elevations on the east slope of the Manjiazhai open-pit mine is taken as the research object, and based on laboratory tests and statistical analysis, the variation of negative correlation between the slake durability index and elevation is obtained. The disintegration mechanism of quartz mica schist at different elevations is also discussed. The test results show that the disintegration characteristics of quartz mica schist at different elevations are related to its mineral composition, fissure channel size, and rock damage effect. As the slope height increases, the ratio of mica to quartz in the rock increases, and the greater the porosity of the rock, the more fissures in the rock, the greater the permeability coefficient, and the more obvious the change of effective stress of rock under osmotic pressure. At the same time, the higher the slope elevation of open-pit mine, the longer the weathering time of rock, the higher the cumulative damage of rock, and the lower the rock slake durability index. This study provides a new idea for guiding the research on the disintegration characteristics of similar soft rock slopes in the elevation direction.http://dx.doi.org/10.1155/2022/6006940 |
| spellingShingle | Yongfeng Lu Kepeng Hou Huafen Sun Wei Sun Shengyou Zhang Jun Jiang Influence of Elevation on Slake Durability Index of Quartz Mica Schist: A Case Study of East Slope of Manjiazhai Open Pit Advances in Materials Science and Engineering |
| title | Influence of Elevation on Slake Durability Index of Quartz Mica Schist: A Case Study of East Slope of Manjiazhai Open Pit |
| title_full | Influence of Elevation on Slake Durability Index of Quartz Mica Schist: A Case Study of East Slope of Manjiazhai Open Pit |
| title_fullStr | Influence of Elevation on Slake Durability Index of Quartz Mica Schist: A Case Study of East Slope of Manjiazhai Open Pit |
| title_full_unstemmed | Influence of Elevation on Slake Durability Index of Quartz Mica Schist: A Case Study of East Slope of Manjiazhai Open Pit |
| title_short | Influence of Elevation on Slake Durability Index of Quartz Mica Schist: A Case Study of East Slope of Manjiazhai Open Pit |
| title_sort | influence of elevation on slake durability index of quartz mica schist a case study of east slope of manjiazhai open pit |
| url | http://dx.doi.org/10.1155/2022/6006940 |
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