Mine underground high-water-permeability filling retaining wall and construction method thereof

Abstract

The invention discloses a mine underground high-water-permeability filling retaining wall and a construction method thereof. The filling retaining wall comprises an in-surrounding-rock barren layer, a pervious concrete layer and a pervious brick layer which are arranged in sequence; the barren layer is located at the bottom of the pervious concrete layer, a plurality of pervious pipes are embedded in the barren layer, the pervious brick layer is located at the top of the pervious concrete layer, the upper portion of the pervious brick layer is connected with surrounding rock, and the interior of the surrounding rock is divided by the barren layer, the pervious concrete layer and the pervious brick layer into a roadway and a goaf. The construction method is characterized in that a carry-scraper or a self-discharging truck is adopted for carrying nearby waste stone to the filling retaining wall preset position, and the pervious pipes are preset into the waste stone; the waste stone is compacted to form the barren layer, and then a layer of pervious concrete is paved on the barren layer to form the pervious concrete layer; and after solidification of the concrete of the pervious concrete layer, pervious bricks are constructed in a seam staggering manner. The mine underground high-water-permeability filling retaining wall has the high water permeability, and the filling material gelation time can be shortened; and waste stone generated under the shaft is sufficiently used, and consumption of bricks is reduced.

Description

technical field [0001] The invention belongs to the technical field of mine filling and mining, and in particular relates to a strong water-permeable filling retaining wall under a mine well and a construction method thereof. Background technique [0002] Due to the importance and non-renewability of resources, the state vigorously advocates the development of circular economy of mineral resources and realizes waste-free mining. The filling mining method has significant advantages such as reducing solid waste discharge, improving ore recovery rate, and controlling stope pressure. It is a mining method with great development prospects and has been more and more widely used in the world. The filling retaining wall is an extremely important part of the filling method. Its main function is to block the overflow of the filling slurry in the goaf and to discharge the slurry water in time. In order to obtain high filling quality and efficiency, the filling retaining wall must have...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of poor water permeability, high cost, and high labor intensity of the existing filling retaining wall, and provides a strong water-permeable filling retaining wall in a mine underground and a construction method thereof

Images