After more than ten years of mining, the subsequent replacement resources of 4 # coal in Xiagou Mine are insufficient. In order to ensure the normal production of the mine, Xiagou Coal Mine needs to recycle the lower layer resources of 4 # coal seam. The design issue of the roadway layout and support mode for the bottom coal recovery left by the strong disturbance in the Xiagou Mine has to be resolved. Through theoretical evaluation and computer simulation, this study investigates the appropriate staggered distance of the roadway layout following upper slicing mining as well as the distributed stress law of the roadway under various staggered distances. Finally, the reasonable external offset is determined. Based on the actual working condition of 404 mining area in Xiagou Mine, the matching roadway support design is put forward. Finally, the roadway layout and support design are validated through the use of computer modeling and field monitoring. The findings demonstrate that when there is a significant disruption in the upper layer, the roadway layout of bottom coal recovery should adopt the external staggered layout and the reasonable external staggered distance is 6 m. At this time, the fluctuation degree of nearby rock stress, the non-uniformity of stress distribution and the uniformity of the roadway's deformation under disturbance meet the production needs. It shows that 6m layout and roadway supporting method are more reasonable, which has reference significance for roadway arrangement and support under similar engineering conditions.
| Published in | International Journal of Oil, Gas and Coal Engineering (Volume 12, Issue 3) |
| DOI | 10.11648/j.ogce.20241203.11 |
| Page(s) | 63-74 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
High Intensity Mining Disturbance, Non-Uniform Stress Distribution, Roadway Layout, Combined Support, Bottom Coal Recovery
| [1] | Li Jing, He Jiang, Gong Siyuan, et al. Case study on prediction and warning of rock burst under overlying pillar [J]. Journal of China Coal Society, 2016, 41(S2): 305-310. https://doi.org/10.13225 /j.cnki.jccs.2015.1835 |
| [2] | Chen Sushe, Zhu Weibing. Study on double-roadway layout under section coal pillar of ultra-close upper coal seams in Huojitu mine [J]. Journal of Mining and Safety Engineering, 2016, 33 (03): 467-474. |
| [3] | LIU Guoxing, WANG Dong. Technology and practice of coal mining face support under the condition of caving loose regenerated roof in Xintaoyang Company [A]. China Coal Industry Association. National Coal Mining Technology for Complex and Difficult Coal Seams [C]. China Coal Industry Association: China Coal Industry Association, 2012: 4. |
| [4] | He Ziming. Study on the re-mining technology of 3 # thick coal seam in Jushan Coal Mine [D]. China University of Mining and Technology, 2019. |
| [5] | Lu Shiliang, Sun Yonglian, Jiang Yaodong. Selection of Horizontal Distance X Between Roadway and the Edge of its Upper pillar [J]. Journal of China University of Mining and Technology, 1993, 22 (2): 4-10. |
| [6] | Jia Shangwei, Fan Zhigang, Song Zuguang, et al. Stress analysis of floor under residual coal pillar in close distance coal seam and reasonable layout of mining roadway [J]. Coal Engineering, 2020, 52 (10): 11-15. |
| [7] | Zhang Wei, Zhang Dongsheng, Chen Jianben, et al. Selection of Horizontal Distance X Between Roadway and the Edge of its Upper pillar [J]. Journal of China University of Mining and Technology, 2012, 41 (02): 182-188. |
| [8] | Zhang Baisheng, Yang Shuangsuo, Kang Lixun, etc. Selection of Horizontal Distance X Between Roadway and the Edge of its Upper pillar [J]. Journal of Rock Mechanics and Engineering, 2008 (01): 97-101. |
| [9] | Suo Yonglu, Shang Tielin, Zheng Yong, et al. Numerical simulation on rational location of roadways at lower seam for ultra-close multiple seam mining [J]. Journal of China Coal Society, 2013, 38 (S2): 277-282. |
| [10] | Shi Jianjun, Ma Nianjie, Yan Dezhong, et al. Measure Technology for Loose Circle of Crush Roadway Surrounding Rock and lts Application [J]. Coal Engineering, 2008 (03): 32-34. |
| [11] | He Manchao, Qi Gan, Cheng Cheng, etc. Deformation and Damage Mechanics and Coupling Support Design in Coal Roadway with Compound Roof [J]. Journal of Rock Mechanics and Engineering, 2007 (05): 987-993. |
| [12] | Kang, Wang, Lin. Case Studies of Rock Bolting in Coal Mine Roadways [J]. Journal of Rock Mechanics and Engineering, 2010, 29 (04): 649-664. |
| [13] | Liu Quansheng, Liu Xuewei, Huang Xing, et al. Research on the floor heave reasons and supporting measures of deep soft-fractured rock roadway [J]. Journal of China Coal Society, 2013, 38 (04): 566-571. |
| [14] | Yuan Liang. Stability classification and engineering countermeasures of coal roadway in Huainan mining area [J]. Journal of Rock Mechanics and Engineering, 2004 (S2): 4790-4794. |
| [15] | Liu Yonghong, Li Kang, Cao Minyuan, et al. Analysis of stress distribution under the coal pillar of open cut lane and its control countermeasures [J]. Coal Engineering, 2020, 52 (09): 47-51. |
| [16] | Wang Yubo. Evolution mechanism of end structure and abutment pressure on fully-mechanized top coal caving face in extra thick coal seam [J]. Journal of China Coal Society, 2017, 42 (S1): 30-35. |
| [17] | Zhang Guangchao, He Fulian, Lai Yonghui, et al. Reasonable width and control technigue of seament coal pillar with high-intensity fully-mechanized caving mining [J]. Journal of China Coal Society, 2016, 41 (9): 2188-2194. |
| [18] | Wang Zhiqiang, Wu Chao, Luo Jianqiao, et al. Instability mechanism and control of section coal pillar in fully mechanized mining face with super thick roof and extra thick seam [J]. Journal of China Coal Society: 1-14. |
| [19] | Tu Hongsheng, Tu Shihao, Bai Qingsheng, et al. Instability mechanism and reasonable size of section coal pillar in steeply inclined coal seam working face [J]. Journal of China University of Mining and Technology, 2013, 42 (01): 6-11. |
| [20] | Wang Zhiqiang, Tian, Liu Yincang, et al. Study on surrounding rock instability mechanism and control technology of narrow coal pillar roadway in layered mining [J]. Coal Engineering, 2022, 54 (01): 94-100. |
| [21] | Li Guodong, Liu Honglin, Wang Hongzhi. Surrounding rock control and reasonable layout of roadway in lower seam of extremely close coal seam [J]. Coal Engineering, 2021, 53 (07): 42-47. |
| [22] | Yuan Bo, Zhang Zhaoqian, Zhang Baisheng, etc. Numerical Simulation of Grouting Reinforcement of Cracked Surrounding Rocks and it Application in Engineering [J]. Metal Mine, 2013 (07): 45-48 + 53. |
| [23] | Qian Minggao, Shi Pingwu, Xu Jialin. Mine pressure and strata control [M]. Xuzhou: China University of Mining and Technology Press, 2010, 197-200. |
| [24] | Zhou Lianchun, Li Wang, Wang Yan. Stress distribution law of mining face under coal pillar of overlying coal seam [J]. Coal Engineering, 2020, 52 (05): 121-125. |
| [25] | Yuan Yong, Tu Shihao, Wu Qi, et al. Large mining height fully mechanized working face end of the bottom coal roadway in variable slope bottom recovery technology [J]. Coal Journal, 2010, 35 (10): 1594-1598. |
| [26] | Wang K, Huang Y, Gao H, et al. Recovery Technology of Bottom Coal in the Gob-Side Entry of Thick Coal Seam Based on Floor Heave Induced by Narrow Coal Pillar [J]. Energies, 2020, 13(13). |
APA Style
Duan, Y., Han, G., Hao, X. (2024). Study on Roadway Layout and Supporting Method of High Intensity Mining Disturbance Bottom Coal Recovery Working Face (A Case Study in Xiagou Mine). International Journal of Oil, Gas and Coal Engineering, 12(3), 63-74. https://doi.org/10.11648/j.ogce.20241203.11
ACS Style
Duan, Y.; Han, G.; Hao, X. Study on Roadway Layout and Supporting Method of High Intensity Mining Disturbance Bottom Coal Recovery Working Face (A Case Study in Xiagou Mine). Int. J. Oil Gas Coal Eng. 2024, 12(3), 63-74. doi: 10.11648/j.ogce.20241203.11
AMA Style
Duan Y, Han G, Hao X. Study on Roadway Layout and Supporting Method of High Intensity Mining Disturbance Bottom Coal Recovery Working Face (A Case Study in Xiagou Mine). Int J Oil Gas Coal Eng. 2024;12(3):63-74. doi: 10.11648/j.ogce.20241203.11
Share This Article
Twitter
Linked In
Facebook
Copy
Download@article{10.11648/j.ogce.20241203.11,
author = {Yuqing Duan and Gang Han and Xiaoqi Hao},
title = {Study on Roadway Layout and Supporting Method of High Intensity Mining Disturbance Bottom Coal Recovery Working Face (A Case Study in Xiagou Mine)
},
journal = {International Journal of Oil, Gas and Coal Engineering},
volume = {12},
number = {3},
pages = {63-74},
doi = {10.11648/j.ogce.20241203.11},
url = {https://doi.org/10.11648/j.ogce.20241203.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20241203.11},
abstract = {After more than ten years of mining, the subsequent replacement resources of 4 # coal in Xiagou Mine are insufficient. In order to ensure the normal production of the mine, Xiagou Coal Mine needs to recycle the lower layer resources of 4 # coal seam. The design issue of the roadway layout and support mode for the bottom coal recovery left by the strong disturbance in the Xiagou Mine has to be resolved. Through theoretical evaluation and computer simulation, this study investigates the appropriate staggered distance of the roadway layout following upper slicing mining as well as the distributed stress law of the roadway under various staggered distances. Finally, the reasonable external offset is determined. Based on the actual working condition of 404 mining area in Xiagou Mine, the matching roadway support design is put forward. Finally, the roadway layout and support design are validated through the use of computer modeling and field monitoring. The findings demonstrate that when there is a significant disruption in the upper layer, the roadway layout of bottom coal recovery should adopt the external staggered layout and the reasonable external staggered distance is 6 m. At this time, the fluctuation degree of nearby rock stress, the non-uniformity of stress distribution and the uniformity of the roadway's deformation under disturbance meet the production needs. It shows that 6m layout and roadway supporting method are more reasonable, which has reference significance for roadway arrangement and support under similar engineering conditions.
},
year = {2024}
}
TY - JOUR T1 - Study on Roadway Layout and Supporting Method of High Intensity Mining Disturbance Bottom Coal Recovery Working Face (A Case Study in Xiagou Mine) AU - Yuqing Duan AU - Gang Han AU - Xiaoqi Hao Y1 - 2024/10/10 PY - 2024 N1 - https://doi.org/10.11648/j.ogce.20241203.11 DO - 10.11648/j.ogce.20241203.11 T2 - International Journal of Oil, Gas and Coal Engineering JF - International Journal of Oil, Gas and Coal Engineering JO - International Journal of Oil, Gas and Coal Engineering SP - 63 EP - 74 PB - Science Publishing Group SN - 2376-7677 UR - https://doi.org/10.11648/j.ogce.20241203.11 AB - After more than ten years of mining, the subsequent replacement resources of 4 # coal in Xiagou Mine are insufficient. In order to ensure the normal production of the mine, Xiagou Coal Mine needs to recycle the lower layer resources of 4 # coal seam. The design issue of the roadway layout and support mode for the bottom coal recovery left by the strong disturbance in the Xiagou Mine has to be resolved. Through theoretical evaluation and computer simulation, this study investigates the appropriate staggered distance of the roadway layout following upper slicing mining as well as the distributed stress law of the roadway under various staggered distances. Finally, the reasonable external offset is determined. Based on the actual working condition of 404 mining area in Xiagou Mine, the matching roadway support design is put forward. Finally, the roadway layout and support design are validated through the use of computer modeling and field monitoring. The findings demonstrate that when there is a significant disruption in the upper layer, the roadway layout of bottom coal recovery should adopt the external staggered layout and the reasonable external staggered distance is 6 m. At this time, the fluctuation degree of nearby rock stress, the non-uniformity of stress distribution and the uniformity of the roadway's deformation under disturbance meet the production needs. It shows that 6m layout and roadway supporting method are more reasonable, which has reference significance for roadway arrangement and support under similar engineering conditions. VL - 12 IS - 3 ER -
Research Institute of Rock Burst Prevention, China Coal Energy Research Institute Co., Ltd., Xi’an, China; China Coal Rock Burst & Water Hazard Control Center, Ordos, China
