龙华煤矿浅埋煤层区段煤柱合理宽度研究

doi:10.19286/j.cnki.cci.2024.02.001

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Abstract In order to reduce the waste of coal resources and ensure the stability of roadway during mining, the reasonable width of coal pillar in No. 30203 Face of Longhua Mine was studied by means of field monitoring, numerical simulation and theoretical analysis. The results showed that the width of the plastic zone of the section coal pillar in No.30203 Face was 1.8 m, and the influence range of the advance support pressure of the transportation gateway was 25 m ; the influence range of the advance abutment pressure on the side of the auxiliary transport trough was 20 m. With the advancement of the working face, the convergence of the roof and floor of the mining roadway was 50 mm, and the displacement of the two sides was 5 mm. The theoretical calculation showed that the reasonable width of the section coal pillar was 14.86m ~ 15.26m ; numerical simulation was used to verify that the optimized 15 m wide section coal pillar could meet the requirements of safe production in the working face, and the section coal pillar could maintain good stability. The research results provided a reference for the safe production of mines under similar conditions.

Key words： shallow buried coal seam coal pillar plastic zone reasonable width advance abutment pressure

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	Articles by authors
	Qi Xiaohua
	Wang Li
	Wang Dongdong
	Li Yanyun

Cite this article:

Qi Xiaohua,Wang Li,Wang Dongdong等. Research on reasonable width of coal pillar in shallow buried coal seam section of Longhua Mine[J]. CCI, 2024, 47(2): 1-4，9..

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http://www.mtyhg.com.cn/EN/10.19286/j.cnki.cci.2024.02.001 OR http://www.mtyhg.com.cn/EN/Y2024/V47/I2/1

[ 1 ] 查文华，李雪，华心祝，等. 基本顶断裂位置对窄煤柱护巷的影响应用[ J ]. 煤炭学报，2014，39（ S2 ）：332 - 338. [ 2 ] 张广超，何富连，来永辉，等. 高强度开采综放工作面区段煤柱合理宽度与控制技术[ J ]. 煤炭学报，2016，41（ 9 ）：2 188 - 2 194. [ 3 ] 任建喜，张卫军，张琨，等. 深埋特厚煤层采动应力特征及对邻近巷道影响研究[ J ]. 煤炭工程，2019，51（ 1 ）：77 - 81. [ 4 ] 宋平，庞新坤，刘宏军. 区段煤柱留设合理宽度FLAC（3D）数值模拟研究[ J ]. 中国矿业，2019，28（ 3 ）：78 - 81，86. [ 5 ] 杨立云，王贵东，徐龙宁，等. 基于数字图像相关技术的巷道模型变形监测试验[ J ]. 中国矿业，2020，29（ 5 ）：76 - 81. [ 6 ] 黄庆享，杜君武，刘寅超. 浅埋煤层群工作面合理区段煤柱留设研究[ J ]. 西安科技大学学报，2016，36（ 1 ）：19 - 23. [ 7 ] 张斌，王存文，谭洪山，等. 浅埋深煤层长壁式复采区段煤柱稳定性研究[ J ]. 煤炭科学技术，2015，43（ 1 ）：25 - 28. [ 8 ] 杨俊哲，宋桂军，倪惠宁，等. 浅埋厚煤层综放工作面区段留设煤柱合理尺寸研究[ J ]. 矿业研究与开发，2019，39（ 12 ）：5 - 10. [ 9 ] 胡大冲，张保良，沈宝堂，等. 大采高工作面区段煤柱宽度量化研究[ J ]. 山东科技大学学报：自然科学版， 2017， 36 （ 3 ）：32 - 37. [ 10 ] 陈学华，包鑫阳，张振华. 特厚煤层综放工作面区段煤柱合理宽度[ J ]. 辽宁工程技术大学学报（自然科学版），2017，36（ 2 ）：113 - 121. [ 11 ] 张立生，刘学生，张洪彬. 浅埋煤层区段煤柱宽度优化研究[ J ]. 煤炭工程，2014，46（ 4 ）：17 - 19. [ 12 ] 耿耀强，陈通，黄克军，等. 庙哈孤矿区浅埋煤层护巷煤柱合理宽度研究[ J ]. 中国矿业，2016，25（ 1 ）：97 - 100，111. [ 13 ] 王贵文. 大同矿区特厚煤层盘区大巷护巷煤柱合理宽度研究[ D ]. 太原：太原理工大学，2018.