Comprehensive filling and roof-contacting method for stoping route

Abstract

The invention discloses a comprehensive filling and roof-contacting method for a stoping route. The comprehensive filling and roof-contacting method comprises the following steps of: constructing eachstoping route downhill, performing roof-lifting at the head-on position of the stoping route to form a sand discharging chamber, performing roof-lifting at the inlet of the stoping route, erecting anupper-part open type filling retaining wall, enabling a filling pipeline to enter the stoping route from the upper part of the filling retaining wall, and erecting the filling pipeline to the sand discharging chamber along a roof of the stoping route; and during roof-contacting filling of the stoping route, realizing filling and roof-contacting by utilizing the natural slope of the roof of the stoping route and the pressure of slurry in the filling pipeline, and for a local uneven roof area, realizing local roof-contacting by utilizing vibration of the filling pipeline. According to the comprehensive filling and roof-contacting method disclosed by the invention, during roof-contacting filling, the roof-contacting condition is convenient to observe, the filling and roof-contacting processis simple, the cost is low, the requirement on the filling retaining wall is low, the safety is high, and popularization and application are facilitated.

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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