Supporting device of grouting anchor rod cable and supporting method thereof

Abstract

The invention discloses a supporting device of a grouting anchor rod cable. The device comprises a coal rock roadway drill hole, wherein an anchor rod coaxial with the drill hole extends into the drill hole, the inner diameter of the drill hole is larger than the outer diameter of the anchor rod, the end, away from the drill hole, of the anchor rod extends out of the drill hole, the end, extendingout of the drill hole, of the anchor rod is sleeved with a nut matched with the anchor rod, a grouting pipe is laid on one side of the anchor rod in the drill hole, and a grouting hole of the grouting pipe extends out of the drill hole. The invention further discloses a supporting method of the supporting device of the grouting anchor rod cable. The supporting device completely has the advantagesof the grouting anchor rod cable, the supporting strength is improved, coupling with coal and rock mass is formed, when applied to roof water spraying or soft rock roadway supporting, the surroundingrock strength can be improved, the situation that the service life is short due to the fact that a rod body of the anchor rod cable is corroded is prevented, reinforcement can be carried out at any time according to the roadway deformation condition, good time performance and space performance are achieved after transformation, a roadway deformation rule is matched, and the advantages of anchor rod supporting and the characteristics of grouting reinforcement are brought into full play.

Description

technical field [0001] The invention belongs to the technical field of mining engineering and relates to a support device for grouting anchor cables. [0002] The invention also relates to a support method for the support device of the grouting anchor cable. Background technique [0003] Under the complex and changeable stress distribution of the existing bolt-net-spray support technology, there is still a certain or large deformation in the underground coal mine roadway. On this basis, it is proposed to transform the existing bolt cables. Direct use of grouting anchor cables, the mine pressure damage to the coal and rock mass is only deformed after a certain space and time with the excavation and support of the roadway, it is difficult to inject in the initial construction, and it also needs two Secondary reinforcement maintenance, secondary reinforcement maintenance to remove the broken coal and rock mass of the roof is a large amount of work, if it is not removed, it wil...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a support device for grouting anchor cables, which solves the problem in the prior art that the injection amount of the grouting anchor cables is small and cannot be injected.

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