Continuous automatic and fast excavation technology for anchoring

Abstract

The invention relates to a continuous automatic speed driving technology for driving and anchoring. A driving machine, an advance drilling machine mounted on the driving machine, end supports, anchor rod drilling machine devices, a transferring conveying device or a belt conveyor and a dust removal fan device. The technology includes the operation processes of drilling, driving, supporting, anchoring, conveying and dust removal. Permanent support is divided into head-one support and rear support with the end supports as a boundary. According to the head-on support, the two head-on anchor rod drilling devices are used for the head-on support, at least two anchor rods are arranged in the gape between the end supports in each row in a drilled mode, the anchor rods only provide control and restraint for a top plate separation layer, and the end supports play a role in protection. When a next operation process cycle is performed, the rear support is constructed after part of remaining anchor rods and part of remaining anchor cables are completely lagged behind the end supports, and continuous operation is performed behind the end supports. The problem that comprehensive driving efficiency of a roadway poor in surrounding rock stability is low is solved, driving construction and anchoring construction can be in parallel operation, construction efficiency is improved, and meanwhile the construction environment of comprehensive driving and anchoring is improved.

Description

technical field [0001] The invention belongs to the technology of underground coal mining, and in particular relates to the technology of continuous automatic and fast digging of anchors. Background technique [0002] At present, the main method to improve the excavation efficiency at home and abroad is to adopt the cross-transposition excavation technology of continuous miner and bolter trolley, and improve the efficiency through the method of concentrated support after continuous excavation with super large step distance (above 10m). The space-time roof distance is more than 10m during transposition, which is only suitable for roadways with good roof conditions, and has extremely high requirements on geological conditions. [0003] For roadways with poor geological conditions and unstable surrounding rocks, continuous excavation with large steps will bring great safety hazards to the roof. The improvement of such roadway excavation efficiency once became the technical bott...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to improve the existing comprehensive bolting construction technology, to provide a method that not only solves the problem of low efficiency of comprehensive tunneling in roadways with poor stability of surrounding rocks, but also enables cross-operation of bolting construction at the same time, further improving the efficiency of bolting construction , to further improve the continuous and automatic rapid excavation technology of comprehensive anchor excavation construction environment

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