Control method for aggregate outflow through mine dynamic water sealing

Abstract

The invention relates to a control method for aggregate outflow through mine dynamic water sealing. The existing method is only suitable for situations that the water inrush is small and the water pressure is low, and has extremely poor adaptability for super-huge type mine water inrush with huge water inrush and higher water pressure. The control method for aggregate outflow through mine dynamic water sealing comprises the following steps: selecting a section perpendicular to the axis of a roadway; preparing a material; placing a mesh into the side, close to a water inrush point, of the section; arranging a vertical rack tube grid on the section of the roadway; constructing a row of anchor rods on a bottom plate of the roadway on one side of a back side of the rack tube grid; connecting an anchor through tube with the anchor head of each anchor rod on the ground; arranging ground tubes on the sides, close to the back side of the tube rack grid, of the anchor through tubes; fixing the mesh on transverse tubes of a net rack by using iron wires towards the water inflow direction; connecting each supporting tube to form a stable whole body. The method has the advantages of short construction time and good aggregate outflow control effect and can be applied to the situation of super-huge type mine water inrush.

Description

technical field [0001] The invention belongs to the technical field of mine water shutoff, and in particular relates to a method for controlling the flow of mine dynamic water interception and aggregate outflow. Background technique [0002] After a large water inrush occurs in the mine, in order to ensure the safety of the upper production system of the mine and the adjacent mines, forced drainage is often used to control the submerged water level in the mine. In general, the method of dynamic water interception in the roadway is to inject aggregates on the ground through drilling holes. The aggregates are generally sand, rice stone and gravel. Relying on the aggregates to build a water-blocking section in the roadway, gradually reduce the water flow in the roadway , and finally inject cement slurry to completely block the roadway, and then carry out grouting treatment to the water inrush channel in the formation under still water conditions. [0003] At present, the mine ...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for controlling the outflow of aggregates in mine dynamic water interception, so as to solve the problems of long construction time, poor control effect on aggregate outflows and difficulty in applying water inrush in super-large mines existing in the prior art

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