Supporting method for roadway fully-mechanized drivage operation without withdrawal of roadheader

Abstract

The invention relates to a supporting method for a roadway fully-mechanized drivage operation without withdrawal of a roadheader, aiming to solve the problems of bad safe reliability and complex operating processes of conventional roadway fully-mechanized drivage operations with withdrawal of roadheaders. The supporting method includes providing temporary supporting for a new roof exposed in the roadway fully-mechanized drivage operation by an associated operation with the roadheader, and performing a supporting operation of laying metal nets and steel belts on a roadhead by a roadway drivage alternating supporting device; performing a permanent supporting operation of punching anchor rods on the roof and two sides of the roadway in a roadway zone behind the roadheader by a movable roof bolter supporting platform; and conveying coal cut by the roadheader through a bridge reversed loader and a belt conveyer. The process design is reasonable; supporting and moving is stable; a roadway empty operation is avoided; supporting is safe and reliable; the conventional operation method that the roadheader is needed to be withdrawn in each step and operation procedures are alternated frequently is changed, so that the roadheader can drivage continuously without being withdrawn. Synchronous mechanical operation of drivage and permanent supporting can be realized, and utilization rate and drivage efficiency of the roadheader can be increased remarkably.

Description

technical field [0001] The invention relates to a support method for underground roadway excavation operations, in particular to a roadway excavation staggered support device with mature technology and a fully mechanized excavator to cooperate with the operation, to carry out on-site timely support and permanent support without fully mechanized roadway excavation. The backing operation support method is mainly used for the mechanized support of the fully mechanized excavation face of the underground roadway, where the roof of the roadway and the two sides of the roadway are exposed during the excavation operation of the roadheader, and the mechanized support for operations such as net laying, steel belt driving, and bolting. The invention belongs to the technical field of roadway excavation support technology. Background technique [0002] At present, the tunneling operation of underground roadway is the prerequisite for all other mining operations in mine mining, especially...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a support method for fully-mechanized roadway excavation without retreating machine, which solves the problems of poor safety reliability and complicated operation process of traditional roadway fully-mechanized excavating backing machine support. The support operation without retreat is safe and reliable, eliminates the empty roof operation of the excavation roadway, realizes the mechanized parallel operation of excavation and permanent support, and improves the operating rate and excavation efficiency of the excavation machine

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