Wire saw machine for cutting underground engineering contour on rock

Abstract

The invention discloses a wire saw machine for cutting an underground engineering contour on a rock. The wire saw machine comprises a guide groove, a front guide plate, a rear guide plate, a support plate, a drive motor, a connecting rod, a support rod, a control room, a power system, a telescopic arm, a hydraulic device, a water supply center, a wind pressure machine, a drive wheel, a driven wheel, an upper groove, a lower groove, an upper guide groove and a lower guide groove. The wire saw machine has the beneficial effects that the desired contour is cut on the rock by controlling a wire saw cutting system on a contour frame so that the upper part of the rock to be excavated and the rock integrally can form a free surface; then the rock to be excavated is subjected to collapse blastingof the free surface; the impact of blasting vibration on the ground surface is reduced; overbreak and underbreak are avoided; the secondary construction rate is reduced; the blasting efficiency is greatly improved; and the engineering cost is reduced.

Description

technical field [0001] The invention relates to a wire saw machine, in particular to a wire saw machine for cutting underground engineering contours on rocks, and belongs to the technical field of rock cutting. Background technique [0002] During the construction of underground projects such as tunnel excavation and subway construction, if hard rock is encountered, blasting is generally used in China to excavate, and smooth blasting or pre-splitting blasting is often used around the contours of engineering structures. In the prior art, smooth blasting or pre-splitting blasting can move on a relatively flat excavation surface, and the surrounding rock is not significantly damaged, but the number of blast holes is large, and the vibration generated by blasting needs to be strictly controlled due to the constraints of the surrounding environment. Therefore, the blasting construction efficiency is low. And it is easy to form over-excavation, resulting in secondary construction...

AI Technical Summary

Problems solved by technology

In the prior art, smooth blasting or pre-splitting blasting can move on a relatively flat excavation surface, and the surrounding rock is not significantly damaged, but the number of blast holes is large, and the vibration generated by blasting needs to be strictly controlled due to the constraints of the surrounding environment. Therefore, the efficiency of blasting construction is low

And it is easy to form over-excavation, resulting in secondary construction, affecting the construction progress, and its use in complex geological environments and urban centers is limited

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