Process for sealing elevation drill hole water-stopping sleeves

Abstract

The invention relates to a process for sealing elevation drill hole water-stopping sleeves. The process comprises the following steps of: (1) preparing a sleeve, namely arranging a water stopper at a position which is close to the opening of a drill hole on the sleeve, and arranging a thin hose II which is as long as the sleeve outside the sleeve, wherein the thin hose II is over the sleeve; and a thin hose I which is attached to the inner side of the thin hose II is connected with the water stopper; attaching a thin hose III under the sleeve, and installing a stop valve I, a stop valve II, a stop valve III and a stop valve IV on the outer sides of the sleeve, the thin hose I, the thin hose II and the thin hose III respectively; and arranging the prepared sleeve into the drill hole; (2) sealing the sleeve; pouring a quick setting material into the water stopper; pouring a sealing material into an annular gap between the sleeve and the drill hole; when grouting pressure reaches 1.0MPa, stopping grouting, closing the stop valve IV, and waiting for setting; and when the time of waiting for setting is up, cutting off all the hoses outside the drill hole to finish sleeve sealing; and (3) checking whether the sealed sleeve meets the pressure requirement or not, wherein the sealed sleeve is qualified if the pressure requirement is met.

Description

technical field [0001] The invention relates to a technology for sealing a water-stop casing of an elevation drilling hole, which is mainly used in mines, transportation and other water exploration and drainage and grouting water blocking projects. Background technique [0002] At present, in the construction drilling, in addition to the construction of vertical drilling and negative inclination drilling using the positive circulation method to seal, the sealing of the elevation drilling has the problem that the sealing material is difficult to remain in the drilling. According to the traditional closed operation process, the cement block is mainly blocked at the hole opening of the drill hole, and then the cement slurry is injected from the casing. Wait for the cement slurry to solidify before re-drilling and sweeping the hole. Generally, the sealing time at one time is at least 72 hours. The existing problem is that the solidification time of the cement slurry material is...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of poor sealing quality, long sealing time and sealing failure of the drilling at an elevation angle, and provide a process for sealing the water-stop casing of the drilling at an elevation angle, which better solves the problem of the sealing of the drilling casing at an elevation angle. closed

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