Research on Deformation Characteristics and Control Technology of Soft Rock Roadway under Dynamic Disturbance
In the mining process of an underground coal mine, the dynamic load often causes great damage to the roadway and affects the normal mining of coal mine. In this paper, the deformation of surrounding rocks under static load and different disturbance intensities is studied by numerical simulation. The...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/6625233 |
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| _version_ | 1850159501483704320 |
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| author | Chuan-Wei Zang Yang Chen Miao Chen Hong-Mo Zhu Chen-Ming Qu Jia Zhou |
| author_facet | Chuan-Wei Zang Yang Chen Miao Chen Hong-Mo Zhu Chen-Ming Qu Jia Zhou |
| author_sort | Chuan-Wei Zang |
| collection | DOAJ |
| description | In the mining process of an underground coal mine, the dynamic load often causes great damage to the roadway and affects the normal mining of coal mine. In this paper, the deformation of surrounding rocks under static load and different disturbance intensities is studied by numerical simulation. The results show that under the same static load condition, the greater the dynamic load strength is, the more obvious the roadway roof displacement subsidence is. With the increase in dynamic load propagation distance, the amplitude of the dynamic load waveform decreases gradually. Under the same disturbance load intensity, the variation of roadway displacement with different disturbance load frequencies is studied. According to the influence of dynamic load on the deformation of the roadway, a combined support plan of shotcrete anchor net and reinforcement anchor cable is proposed. Finally, the rationality of the optimized support scheme is verified by numerical simulation and field results. The results show that the combined support scheme can effectively increase the strength of the broken soft rock and reduce the deformation of the surrounding rock. At the same time, it releases the expansion energy generated by the mutual compression and deformation of the rock layers, effectively maintaining the long-term stability of the roadway. |
| format | Article |
| id | doaj-art-b5174f90de94447eb08a9dedb7aa8911 |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-b5174f90de94447eb08a9dedb7aa89112025-08-20T02:23:31ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/66252336625233Research on Deformation Characteristics and Control Technology of Soft Rock Roadway under Dynamic DisturbanceChuan-Wei Zang0Yang Chen1Miao Chen2Hong-Mo Zhu3Chen-Ming Qu4Jia Zhou5College of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, ChinaIn the mining process of an underground coal mine, the dynamic load often causes great damage to the roadway and affects the normal mining of coal mine. In this paper, the deformation of surrounding rocks under static load and different disturbance intensities is studied by numerical simulation. The results show that under the same static load condition, the greater the dynamic load strength is, the more obvious the roadway roof displacement subsidence is. With the increase in dynamic load propagation distance, the amplitude of the dynamic load waveform decreases gradually. Under the same disturbance load intensity, the variation of roadway displacement with different disturbance load frequencies is studied. According to the influence of dynamic load on the deformation of the roadway, a combined support plan of shotcrete anchor net and reinforcement anchor cable is proposed. Finally, the rationality of the optimized support scheme is verified by numerical simulation and field results. The results show that the combined support scheme can effectively increase the strength of the broken soft rock and reduce the deformation of the surrounding rock. At the same time, it releases the expansion energy generated by the mutual compression and deformation of the rock layers, effectively maintaining the long-term stability of the roadway.http://dx.doi.org/10.1155/2021/6625233 |
| spellingShingle | Chuan-Wei Zang Yang Chen Miao Chen Hong-Mo Zhu Chen-Ming Qu Jia Zhou Research on Deformation Characteristics and Control Technology of Soft Rock Roadway under Dynamic Disturbance Shock and Vibration |
| title | Research on Deformation Characteristics and Control Technology of Soft Rock Roadway under Dynamic Disturbance |
| title_full | Research on Deformation Characteristics and Control Technology of Soft Rock Roadway under Dynamic Disturbance |
| title_fullStr | Research on Deformation Characteristics and Control Technology of Soft Rock Roadway under Dynamic Disturbance |
| title_full_unstemmed | Research on Deformation Characteristics and Control Technology of Soft Rock Roadway under Dynamic Disturbance |
| title_short | Research on Deformation Characteristics and Control Technology of Soft Rock Roadway under Dynamic Disturbance |
| title_sort | research on deformation characteristics and control technology of soft rock roadway under dynamic disturbance |
| url | http://dx.doi.org/10.1155/2021/6625233 |
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