The advantage of this method is that it can reduce the amount of open engineering of the upper non-mineral section or the extracted section, shorten the length of the inclined well, thereby achieving the purpose of increasing the production capacity of the inclined well, and at the same time, the length of the stone gate can be compressed as much as possible, thereby shortening the construction time. The transportation system of the scheme is shown in Figure 7-15. The ore or waste rock passes through the middle section of the stone gate, and the blind sloping well refers to the underground parking lot of 323 ç¡, and then the raft is transported out through the flat.
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Joint development method - the development plan for the lower blind inclined shaft in the upper Pingyi
The applicable conditions of this scheme are as follows: (1) the surface topography is a mountainous area, and there is no ideal industrial site above the ore body; 2 the ore body has a medium dip angle (ie, the dip angle is between 45o and 55o), which is a blind ore body and is present in the ground. Below the plane; 3 If there is an ore body above the ground level, but the upper ore body is the end of the mining method, and many old people are formed.