A Comprehensive Filling and Roofing Method of Mining Route

Abstract

The invention discloses a method for comprehensive filling and roofing of a mining approach, comprising: downhill construction of each mining approach, raising the roof at the head of the mining approach to form a sand chamber, and at the same time raising the roof at the entrance of the mining approach And erect the upper open filling retaining wall, the filling pipeline enters the mining approach from the top of the filling retaining wall, and erects along the roof of the mining approach to the sand chamber; when the mining approach is connected to the roof and filled, the natural slope of the mining approach roof is used and the slurry pressure in the filling pipeline to realize the filling and roofing. For the local uneven roof area, the local roofing is realized by the vibration of the filling pipeline; when the roof is filled, the roofing situation is easy to observe, and the filling and roofing process is simple. The cost is low, the requirements for filling the retaining wall are low, and the safety is good, which is convenient for popularization and application.

Description

technical field [0001] The invention relates to an underground filling and mining technology for metal mines, and relates to a method for filling fillings in an underground mining area, in particular to a comprehensive filling and roofing method for a mining approach. Background technique [0002] At present, when domestic mines are performing upward filling mining method filling operations, a closed filling retaining wall is generally erected at the opening of each mining approach, and filling pipes and exhaust pipes are installed in the mining approach to perform forced filling and roofing. It is difficult to observe the filling and top connection of this method, and when the top is connected at the end, due to the huge pressure of the remaining filling material in the filling pipeline or the washing water, it is very easy to cause the filling retaining wall to leak slurry or even be washed away, causing roadway pollution. In some mines, in order to solve the contradiction...

AI Technical Summary

Problems solved by technology

It is difficult to observe the filling and connecting to the roof with this method, and when the roof is connected at the end, due to the huge pressure of the remaining filling material in the filling pipeline or the pipe cleaning water, it is very easy to cause the filling retaining wall to leak slurry or even be washed away, causing roadway pollution

In some mines, in order to solve the contradiction between filling the roof and filling the retaining wall, the filling retaining wall is designed as a reinforced concrete retaining wall. Not only is the cost very high, but the construction period is also too long. Whether the filling is connected to the roof can only rely on some monitoring with more complicated designs device

The cost of filling and roofing is high and the process is complicated, which leads to the low application rate of the upward filling mining method, a mining method with good safety performance.

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