综放采场外错布置区段巷道减冲机理与关键技术

发布时间：2018-07-12 18:18

  本文选题：综放采场 + 区段巷道　； 参考：《煤炭学报》2016年03期

【摘要】：针对宽、窄、无煤柱区段巷道防冲存在的问题,提出了沿空巷道外错合理位态减冲设计方法。通过建立覆岩结构模型、底板梁-柱模型,结合现场实测等,分析"应力场特征-减冲"关系、"卸压保护空间尺度-减冲"关系,揭示了外错布置减冲机理。研究成果在华丰煤矿埋深超千米综放采场实施,确定了外错布置沿空区段巷道的合理位态,同步构建了兼顾顶板治理、支护结构减冲、易发火控制、高效掘进及开采、合理验证与预警的系统关键技术,解决了以往沿空巷道防冲难度大、变形大难以控制、难以实现无煤柱开采等相关工程问题。
[Abstract]:Aiming at the existing problems of roadway scour prevention in wide, narrow and no coal pillar section, this paper puts forward a reasonable position reduction design method for outside-fault of roadway along goaf. Through the establishment of overburden structure model, floor beam-column model and field measurement, the relationship between "stress field characteristics and impact reduction" and "pressure relief protection space scale-impact reduction" is analyzed, and the mechanism of external fault arrangement is revealed. The research results are carried out in Huafeng coal mine, the reasonable position of the roadway along the goaf is determined, the roof treatment, the supporting structure reducing the impact, the fire easily controlling, the high efficiency tunneling and mining are constructed simultaneously, which is carried out in the fully mechanized caving stope of Huafeng coal mine. The key technologies of reasonable verification and early warning system have solved the related engineering problems, such as the difficulty of anti-scouring, the difficulty of controlling deformation and the difficulty of mining without coal pillar in the past.
【作者单位】： 安徽理工大学煤矿安全高效开采省部共建教育部重点实验室;山东科技大学山东省矿山灾害预防控制国家重点实验室培育基地;新汶矿业集团有限责任公司华丰煤矿;
【基金】：国家自然科学基金资助项目(51174002) 山东省矿山灾害预防控制国家重点实验室培育基地开放基金资助项目(MDPC2012KF02)
【分类号】：TD324
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本文编号：2118066