近距离煤层采空区下迎采掘进巷道支护研究
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山西孝义西山德顺煤业有限公司

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Study on the support of roadway in gob area of close coal seam
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Shanxi Xiaoyi Xishan Deshun Coal Industry Co.,Ltd

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    摘要:

    为确定近距离煤层工作面回采对轨道顺槽围岩的应力扰动分布区域,以山西孝义西山德顺煤业仅留设16米煤柱的10108工作面与10109轨道顺槽为研究对象,基于对迎采掘进巷道采掘各阶段的掘进特征分析,利用FLAC3D软件建立了10108工作面及10109轨道顺槽掘进的数值计算模型,研究了迎采空区掘进剧烈扰动阶段及相邻工作面回采动压影响阶段的应力扰动特征及区域分布特点,明确了10108工作面回采对10109轨道顺槽的强应力扰动范围,可为迎采掘进巷道的支护强化提供有效指导。

    Abstract:

    To ascertain the stress perturbation distribution area of the surrounding rock in the roadway heading of the close-distance coal seam working face, the 10108 working face and the 10109 roadway heading of Shanxi Xiaoyi Xishan Deshun Coal Industry with merely a 16-meter coal pillar were selected as the research subjects. Grounded on the analysis of the excavation and construction traits of the adjacent working face and the roadway heading, a numerical calculation model was established by employing FLAC3D software to investigate the stress perturbation characteristics and regional distribution features during the violent disturbance stage of the adjacent working face"s excavation and the influence of the adjacent working face"s mining pressure on the roadway heading. This study delineated the intense stress perturbation range of the 10108 working face"s mining on the 10109 roadway heading, which can offer effective guidance for the reinforcement of the support of the adjacent excavation roadway.

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  • 收稿日期:2024-11-18
  • 最后修改日期:2025-01-26
  • 录用日期:2025-02-28
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