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- To-and-fro Mining Technology Practice of Caving Mining Face with Light Supports in Single Mining Area 单翼采区轻放工作面往复式开采技术实践
- Fast equipment removing technology of fully mechanized top coal caving mining face in two hard and special thick seams of Pingshuo mining area 平朔矿区两硬特厚煤层综放工作面快速回撤工艺
- Key technologies of hydraulic powered caving supports for fully mechanized caving mining face in two hard and thick seams in Pingshuo Mining Area 平朔矿区浅埋深两硬特厚煤层综放支架关键技术
- Technology for fully mechanized longwall top coal caving mining face crossing over folded structure in Yangquan Mining Area 阳泉矿区综放工作面过褶曲构造技术
- caving mining area 冒落采区
- Speed up development of Panxi iron mining area. 加快攀西铁矿山建设。
- Manage Environment in Exploration and Mining Area. 管理矿区环境。
- The coal mining area is in the center of the basin. 煤矿区位于盆地的中心。
- The caving of hard top coal of 4-2# coal seam in Tongchuan Jiaoping Coal Mining Area seriously impacts the production efficiency of the mine. 铜川焦坪矿区4-2%23煤层坚硬顶煤垮落破碎难题是严重影响矿井生产效益的"瓶颈"。
- More than60 pits in old mining areas are being extended. 老矿区的六十多个矿井正在扩建。
- The coal seam of fully mechanized top-coal caving face 1151(3) in Xieqiao coal mine of Huainan mining area is soft and loose,and is of low permeability and poor wetting condition. 基于淮南矿区谢桥煤矿1151(3)综放面,煤层松软、渗透性低、湿润性差的特殊条件,采用煤层注水工艺技术降尘,在注水孔布置方式及参数、注水孔封孔工艺、注水工艺等方面采取一定的技术措施。
- Application of caving mining technology with bottom under condition of flat dipping mid-thick body and unstable rock caused the most of trench and bottom drift, located in abutment , to be destroyed and low recovery in south area, Xishimen Iron Mine. 摘要在缓倾斜中厚矿体底板岩性不稳固的条件下，采用有底柱崩落法，由于电耙道大多处于空区边部应力集中的部位，致使堑沟及底部结构巷道破坏严重而使回收率极低，采用无底柱崩落卸压则可有效解决上述难题。
- Independent Coordinate System Establish Method in Mining Area. 矿区独立坐标系的建立方法。
- My mining area is containing the rich blue sandstone resources. 我矿区蕴藏着丰厚的青砂岩资源。
- It is key problem to raise the top coal recovery rate of the fully mechanized sublevel caving mining. 提高顶煤放出率是综放开采的一个重大课题,预注水弱化顶煤是解决这一问题的有效方法之一。
- Finally, the paper considers that the fully mechanized coal caving mining is helpful to control outburst hazard. 认为:具突出危险性的厚煤层采用综采放顶煤开采法对消突是有积极作用的.
- This endangers anile mining area severely live and develop. 这严重地危及到衰老矿区的生存和发展。
- Cut-off grade method has been used to control the ore drawing in non-pillar sublevel caving mining both in and outside China. 采用无底柱分段崩落采矿法,国内外一直采用截止品位放矿法来控制出矿。
- Triggering Mechanism of Caved Mine Seism Arising from Disasterous Ground Pressure of Gaofeng Mining Area 高峰矿区灾难地压的冒落矿震触发机制研究
- This article introduced applications,observation and research's actuality and developing trend of fully mechanized top coal caving mining under water. 介绍放顶煤开采技术在水体下采煤领域中的应用情况、观测研究现状及其发展趋势。
