Method for reducing surface subsidence range of underground mining area
A technology for surface subsidence and mining areas, applied in underground mining, surface mining, special mining, etc., can solve problems such as large subsidence range, and achieve the effect of simple technical steps, low cost and remarkable effect
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[0023] refer to figure 1 and figure 2 It can be seen that in the prior art, the area of ground subsidence after the mining of the underground working face is much larger than the actual mining area. Even if the surface of the mining area is cultivated land without buildings, the surface will also be cracked, resulting in a decline in soil quality and damage to the ecological environment. Because of this, in order to maximize the mining of underground mineral resources, mining companies have to spend a lot of money on village relocation or protection of important structures, or adopt technologies such as filling mining, which greatly increases mining costs.
[0024] To sum up, in this embodiment, in order to reduce the subsidence range caused by mining, so that the safe subsidence range after mining reaches or approaches the range of the expected subsidence area, the following methods are used:
[0025] A method for reducing the scope of surface subsidence in an undergroun...
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