Multipoint filling method of mine goaf full tailings

Abstract

The invention provides a multipoint filling method of mine goaf full tailings, and belongs to the technical field of goaf filling. According to the multipoint filling method, the goaf internal structure can be accurately obtained by adopting a three-dimensional scanning technique, the bottom cemented filling amount can be accurately calculated, the filling height is detected, the filling effect isincreased, and high-precision filling is realized. According to the multipoint filling method, both ends of the top of a room are fed at the same time so as to fill full tailings at the bottom, the cemented slurry flow distance can be reduced, the degree of tailing segregation is reduced, the bottom cemented filling effect is good, and a first filling retaining wall and a second filling retainingwall which are arranged on both ends of the bottom of the room can be effectively protected. According to the multipoint filling method, the middle of the top of the room is fed so as to fill full tailings on the top, and water filter pipes are respectively arranged on both ends of the room for dehydration, so that the dehydration effect can be effectively increased.

Description

technical field [0001] The invention relates to the technical field of goaf filling, in particular to a multi-point filling method for full tailings in the goaf of a mine. Background technique [0002] After the mining of the mine house is completed, it is necessary to set up filling retaining walls at each outlet of the mine house to close the goaf. Internal feeding for filling. The filling and feeding method adopted in the prior art is single-point filling, specifically, along the length direction of the mine room, a filling point is arranged at one end of the mine room, and a water filter pipe is arranged at the other end. Since some of the residual ore between the outlets of the mine cannot be recovered after the mining is completed, multiple residual ore piles will be formed in the goaf. The quality is poor and the dehydration effect is not satisfactory. [0003] In addition, the internal structure of the goaf will also affect the filling effect. In the prior art, f...

AI Technical Summary

Problems solved by technology

Since some of the residual ore between the outlets of the mine cannot be recovered after the mining is completed, multiple residual ore piles will be formed in the goaf. Poor quality and poor dehydration

[0003] In addition, the internal structure of the goaf will also affect the filling effect

In the prior art, for goafs with low filling heights, measuring ropes are usually used to measure the filling height, but this method can only measure the filling conditions at both ends of the mine house; for goafs with high filling heights, such as above 50m, In the prior art, the filling situation is usually directly observed with the naked eye

None of the above methods can accurately obtain the internal structure of the goaf, which affects the filling effect

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