Monitoring and Analysis of Stress Distribution of the Interaction between Rock and Backfill and the Influence of Geometric Features of the Backfill Boundary
Backfill mining methods are widely used in metal mines. The boundary part of the backfill has a direct effect on the local stability in mining engineering. The distribution of stress on the boundary part of the backfill and surrounding rock had their own features. To study the characteristics of str...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6632884 |
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| author | Rong Lu Fengshan Ma Jie Zhao Jianbo Wang Guilin Li Bing Dai |
| author_facet | Rong Lu Fengshan Ma Jie Zhao Jianbo Wang Guilin Li Bing Dai |
| author_sort | Rong Lu |
| collection | DOAJ |
| description | Backfill mining methods are widely used in metal mines. The boundary part of the backfill has a direct effect on the local stability in mining engineering. The distribution of stress on the boundary part of the backfill and surrounding rock had their own features. To study the characteristics of stress distribution of backfill and surrounding rock on the boundary part, we conducted a field investigation, field monitoring, and numerical simulation. According to the underground monitoring, the overall characteristics of the boundary part of the backfill were that the accumulated horizontal stress was larger than the accumulated vertical stress on the deep sublevel and the accumulated horizontal stress was smaller on the shallow sublevel. On the contact zone (i.e., the boundary part), the stress of the surrounding rock was larger than the stress of the backfill. Combined with the numerical model analysis, we determined that the geometric features of the backfill boundary had an influence on the stress distribution of stress. The multistep boundary helped the integrity of the contact zone and local stability in deep mining. |
| format | Article |
| id | doaj-art-68f8c64412464e6580079087b757c7c5 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-68f8c64412464e6580079087b757c7c52025-02-03T06:10:46ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66328846632884Monitoring and Analysis of Stress Distribution of the Interaction between Rock and Backfill and the Influence of Geometric Features of the Backfill BoundaryRong Lu0Fengshan Ma1Jie Zhao2Jianbo Wang3Guilin Li4Bing Dai5Deep Mining Laboratory Subsidiary of Shandong Gold Mining Technology Co Ltd., Jinan, ChinaKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Science, Beijing, ChinaDeep Mining Laboratory Subsidiary of Shandong Gold Mining Technology Co Ltd., Jinan, ChinaDeep Mining Laboratory Subsidiary of Shandong Gold Mining Technology Co Ltd., Jinan, ChinaDeep Mining Laboratory Subsidiary of Shandong Gold Mining Technology Co Ltd., Jinan, ChinaNuclear Resource Engineering College, University of South China, Hengyang, ChinaBackfill mining methods are widely used in metal mines. The boundary part of the backfill has a direct effect on the local stability in mining engineering. The distribution of stress on the boundary part of the backfill and surrounding rock had their own features. To study the characteristics of stress distribution of backfill and surrounding rock on the boundary part, we conducted a field investigation, field monitoring, and numerical simulation. According to the underground monitoring, the overall characteristics of the boundary part of the backfill were that the accumulated horizontal stress was larger than the accumulated vertical stress on the deep sublevel and the accumulated horizontal stress was smaller on the shallow sublevel. On the contact zone (i.e., the boundary part), the stress of the surrounding rock was larger than the stress of the backfill. Combined with the numerical model analysis, we determined that the geometric features of the backfill boundary had an influence on the stress distribution of stress. The multistep boundary helped the integrity of the contact zone and local stability in deep mining.http://dx.doi.org/10.1155/2021/6632884 |
| spellingShingle | Rong Lu Fengshan Ma Jie Zhao Jianbo Wang Guilin Li Bing Dai Monitoring and Analysis of Stress Distribution of the Interaction between Rock and Backfill and the Influence of Geometric Features of the Backfill Boundary Advances in Civil Engineering |
| title | Monitoring and Analysis of Stress Distribution of the Interaction between Rock and Backfill and the Influence of Geometric Features of the Backfill Boundary |
| title_full | Monitoring and Analysis of Stress Distribution of the Interaction between Rock and Backfill and the Influence of Geometric Features of the Backfill Boundary |
| title_fullStr | Monitoring and Analysis of Stress Distribution of the Interaction between Rock and Backfill and the Influence of Geometric Features of the Backfill Boundary |
| title_full_unstemmed | Monitoring and Analysis of Stress Distribution of the Interaction between Rock and Backfill and the Influence of Geometric Features of the Backfill Boundary |
| title_short | Monitoring and Analysis of Stress Distribution of the Interaction between Rock and Backfill and the Influence of Geometric Features of the Backfill Boundary |
| title_sort | monitoring and analysis of stress distribution of the interaction between rock and backfill and the influence of geometric features of the backfill boundary |
| url | http://dx.doi.org/10.1155/2021/6632884 |
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