Collaborative optimization of driving support technology in the W3233 working face return airway
Deep-shaft mining in roadway stress concentration, difficult control of the surrounding rock, and mining imbalance affect mining efficiency in coal mines. The mechanical parameters and crack development law of roadway surrounding rock were studied by laboratory experiments. The mechanical model was...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2024-03-01
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| Series: | Energy Exploration & Exploitation |
| Online Access: | https://doi.org/10.1177/01445987231202620 |
| _version_ | 1797248555906236416 |
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| author | Ziyi Yang Yingfu Li Peng Kong Zhigang Zhu Zulin Wang Guowei Wang |
| author_facet | Ziyi Yang Yingfu Li Peng Kong Zhigang Zhu Zulin Wang Guowei Wang |
| author_sort | Ziyi Yang |
| collection | DOAJ |
| description | Deep-shaft mining in roadway stress concentration, difficult control of the surrounding rock, and mining imbalance affect mining efficiency in coal mines. The mechanical parameters and crack development law of roadway surrounding rock were studied by laboratory experiments. The mechanical model was established by the method of theoretical analysis, the maximum empty roof distance was deduced, and two support schemes were designed. Through the numerical simulation method, the support scheme was compared and analyzed, the deformation rule of roadway surrounding rock, the optimization of roadway support parameters and the application of hysteresis technology are studied. The effect of different support schemes was verified by three-dimensional similar simulation experiments. The practical engineering verification showed that the construction time of each support circle was reduced by approximately 1 h, and the work was completed 60 days earlier. The research showed that the optimal support scheme was support scheme 1 (7 bolts with 800 mm × 1000 mm spacing between the roof, 10 bolts with 800 mm × 1000 mm spacing between the two sides, and 2 × 1 × 2 cables with 1600 mm × 2000 mm spacing between the roof). Support scheme 1 was applied to the engineering site to control the deformation of surrounding rock at 80 mm, and the deformation was less than the original support scheme. The construction was completed in advance under the hysteresis process, and the support efficiency and operation safety were improved. The results revealed the mechanism of surrounding rock control and proved the effectiveness of digging support synergy. This optimization plan serves as a reference for studying roadway support in rapid excavation and provides theoretical support for safe and efficient coal roadway mining. |
| first_indexed | 2024-04-24T20:16:27Z |
| format | Article |
| id | doaj.art-8928038a1a0146838692709fcc97f7f4 |
| institution | Directory Open Access Journal |
| issn | 0144-5987 2048-4054 |
| language | English |
| last_indexed | 2024-04-24T20:16:27Z |
| publishDate | 2024-03-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Energy Exploration & Exploitation |
| spelling | doaj.art-8928038a1a0146838692709fcc97f7f42024-03-22T17:03:40ZengSAGE PublishingEnergy Exploration & Exploitation0144-59872048-40542024-03-014210.1177/01445987231202620Collaborative optimization of driving support technology in the W3233 working face return airwayZiyi YangYingfu LiPeng KongZhigang ZhuZulin WangGuowei WangDeep-shaft mining in roadway stress concentration, difficult control of the surrounding rock, and mining imbalance affect mining efficiency in coal mines. The mechanical parameters and crack development law of roadway surrounding rock were studied by laboratory experiments. The mechanical model was established by the method of theoretical analysis, the maximum empty roof distance was deduced, and two support schemes were designed. Through the numerical simulation method, the support scheme was compared and analyzed, the deformation rule of roadway surrounding rock, the optimization of roadway support parameters and the application of hysteresis technology are studied. The effect of different support schemes was verified by three-dimensional similar simulation experiments. The practical engineering verification showed that the construction time of each support circle was reduced by approximately 1 h, and the work was completed 60 days earlier. The research showed that the optimal support scheme was support scheme 1 (7 bolts with 800 mm × 1000 mm spacing between the roof, 10 bolts with 800 mm × 1000 mm spacing between the two sides, and 2 × 1 × 2 cables with 1600 mm × 2000 mm spacing between the roof). Support scheme 1 was applied to the engineering site to control the deformation of surrounding rock at 80 mm, and the deformation was less than the original support scheme. The construction was completed in advance under the hysteresis process, and the support efficiency and operation safety were improved. The results revealed the mechanism of surrounding rock control and proved the effectiveness of digging support synergy. This optimization plan serves as a reference for studying roadway support in rapid excavation and provides theoretical support for safe and efficient coal roadway mining.https://doi.org/10.1177/01445987231202620 |
| spellingShingle | Ziyi Yang Yingfu Li Peng Kong Zhigang Zhu Zulin Wang Guowei Wang Collaborative optimization of driving support technology in the W3233 working face return airway Energy Exploration & Exploitation |
| title | Collaborative optimization of driving support technology in the W3233 working face return airway |
| title_full | Collaborative optimization of driving support technology in the W3233 working face return airway |
| title_fullStr | Collaborative optimization of driving support technology in the W3233 working face return airway |
| title_full_unstemmed | Collaborative optimization of driving support technology in the W3233 working face return airway |
| title_short | Collaborative optimization of driving support technology in the W3233 working face return airway |
| title_sort | collaborative optimization of driving support technology in the w3233 working face return airway |
| url | https://doi.org/10.1177/01445987231202620 |
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