Drilling device and method of filling hole for mine infrastructure construction

Abstract

The invention provides a drilling device and method of a filling hole for mine infrastructure construction, and relates to the technical field of mine infrastructure construction. The drilling devicecomprises a first casing pipe, a second casing pipe and a bimetal pipe, the first casing pipe is arranged on the upper part of the second casing pipe, the bimetal pipe is inserted into a pipe cavity of the first casing pipe and a pipe cavity of the second casing pipe, the pipe diameter of the first casing pipe is greater than the pipe diameter of the second casing pipe, the length of the first casing pipe is less than the length of the second casing pipe, the pipe diameter of the bimetal pipe is less than the pipe diameter of the second casing pipe, and the first casing pipe and the second casing pipe are fixedly connected with the inner side wall of the filling hole. The first casing pipe and the second casing pipe are fixedly connected with the inner side wall of the filling hole throughslurry, thus the supporting effect of the filling hole is improved, and damage to the filling hole in the using process is avoided; and the bimetal pipe can freely move in the pipe cavity of the first casing pipe and the pipe cavity of the second casing pipe, after reaching the service life, the bimetal pipe only needs to be replaced with a new bimetal pipe, a new filling hole does not need to beredrilled, and the filling hole drilling cost is lowered.

Description

technical field [0001] The invention relates to the technical field of mine infrastructure construction, in particular to a drilling device and a drilling method for filling holes in mine infrastructure construction. Background technique [0002] The strata in the existing mining area are poorly exposed, and most of them are covered by the Quaternary system. The exposed strata mainly include the Upper Devonian Angleinwula Formation, Jurassic volcanic-sedimentary rocks, and Tertiary and Quaternary sediments. The Upper Devonian Angleyinwula Formation is composed of a set of littoral-marine-terrestrial interfacial mudstone and volcaniclastic rocks. The rocks are all slightly metamorphosed, forming sericite chlorite argillaceous slate, sandstone, siltstone and metamorphic tuff, etc., with a thickness of about a thousand meters. In the sericite chlorite slate, there are fragments of plant fossils. The formation is generally northeast-trending (70°±), dipping northwest, with a ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of poor filling hole support effect and high cost of repeated drilling in the prior art, the present invention provides a drilling device and drilling method for filling holes used in mine infrastructure construction to solve the above technical problems

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