An installation method for hydraulically filling flexible water filter pipes in underground mined-out areas

Abstract

The invention discloses a mounting method for a hydraulic filling soft strainer pipe in a mined out area. The mounting method mainly comprises the following steps: firstly, dropping a main rope vertically; secondly, throwing an auxiliary rope by workers to the opposite side of the mined out area by using the small lateral edges in the edges and corners of the mined out area; thirdly, driving the main rope by the auxiliary rope to a targeted place; fourthly, dropping a soft strainer pipe by using the mounted main rope and arranging steel-wire fixed rings at the interval ranging from 5 to 7m to prevent the soft strainer pipe from deformation and breakage caused by excessive pulling forces; fifthly, fixing both the top end and the bottom end of the soft strainer pipe to stable rocks. The mounting method solves the problem of the difficult construction of mounting strainer pipes in a diagonal way in large-scale mined out areas. Accordingly, strainer pipes can be mounted on any position on the top edge of mined out areas by using small lateral edges in the edges and corners of mined out areas and the method of driving the main rope by the auxiliary rope which is thrown by workers, thereby improving efficiency and operation safety for mounting soft strainer pipes.

Description

technical field [0001] The invention relates to an installation method for hydraulically filling a flexible water filter pipe in an underground mined-out area. technical background [0002] The dehydration of hydraulic backfilling in underground goaf is an important part of the filling process, and the dehydration effect directly affects the strength of the backfill. At present, the hydraulic filling of large-scale mined-out areas mainly uses filter pipes for dehydration, among which soft filter pipes are more and more widely used because of their large water filtration section and good water filtration effect. However, due to the large vertical height and large span of the goaf, personnel cannot enter the goaf to work, resulting in the installation of soft water filter pipes has always been a professional, difficult and dangerous work. There is no very ideal installation method for hydraulically filling flexible water filter pipes in large-scale mined-out areas. Contents...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new method for the installation of soft water filter pipes for hydraulic filling in underground goafs. This method can realize the installation of water filter pipes at any position on the upper boundary of goafs through simple steps, and solves the problem of large-scale goafs. Angle-type installation of the water filter pipe is not easy to construct, which improves the installation efficiency and operation safety of the flexible water filter pipe, and is easy to operate in practical applications

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