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粉煤灰全尾砂膏体充填试验研究
  • 期刊名称:金属矿山,2006,12:4-6
  • 时间:0
  • 分类:TD322[矿业工程—矿井建设]
  • 作者机构:[1]中国矿业大学,江苏徐州221008, [2]徐州矿务集团有限公司,江苏徐州221006, [3]微山金源煤矿,山东微山277600
  • 相关基金:国家自然科学基金资助项目(50574089)
  • 相关项目:沿空掘巷三角块、窄煤柱与锚固体结构稳定研究
中文摘要:

分析沿空留巷巷内支护存在的问题,从提高巷道围岩自身强度及巷内支护对顶板支撑力出发,提出了沿空留巷巷内采用锚杆支护技术。工程应用表明,锚杆支护巷道沿空留巷,有效切落了采空区侧顶板,减小了巷旁支护体载荷;沿空留巷维护效果表明,该技术在留巷期间有效控制了巷道变形,提高了沿空留巷围岩整体稳定性。

英文摘要:

The paper analyzed the problems existing in the support system of gob-side entry retaining. From the surrounding rock self strength of the mining gateway and the support to the roof support forces, the paper proposed the gob-side entry retaining to use bolt sup- port technology. The project application cases showed that the gob-side entry retaining with bolt support could effectively cut the side roof of the gob-sides and reduce the loading of the support devices. The maintenance results of the gob-side entry showed that the technology could effectively control the gateway deformation during the gob-side entry retaining and could improve the stability of the surrounding rock of the gob-side entry retaining.

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