Efficient upward drift slicing and filling mining method suitable for unstable rock stratum
A filling mining and access technology, which is applied in the direction of filling, mining equipment, earth cube drilling, etc., can solve the problems that continuous mining cannot be realized in the second step, the cost of stope support is high, and the amount of mining engineering is large, so as to reduce the The effect of stope support engineering quantity and mining quasi-engineering quantity, improvement of filling efficiency and mine production efficiency, and reduction of mining cost
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[0021] In order to further describe the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0022] A volcanic-sedimentary metamorphic iron ore deposit in central my country has complex mine engineering geology, low ore grade, slightly inclined and inclined ore body, and many ore interlayers. , and the surrounding environment of the mining area is mostly villages and farmland, and the surrounding environment is complex.
[0023] In the early stage of the mine, the upward approach layered filling method was used for mining, with two-step mining, and each layered approach was separated by one mining and one mining. Large-scale mining, and the layer is changed immediately after each layer is filled, makes it difficult to mine the two-step mine house.
[0024] In view of the above problems, the present invention makes technical improvements to the original mining method, and invents a mini...
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