A Mixed Advance Support Method for Mining Roadway with Small Section

Abstract

The invention relates to a small-section mining roadway mixing type advanced support method and belongs to the technical field of mining roadway supports. The method solves the problems that an existing support method is low in support efficiency, large in labor intensity of workers, high in cost, low in mining efficiency, insufficient in effective construction space and low in operation safety and reliability. The support method comprises the steps that 1, a mining roadway to be supported is determined; 2, a grouting anchor cable and an individual hydraulic prop mixing type advanced support are additionally installed on a top plate of the mining roadway, and a top plate support structure is formed; and 3, in the coal mining process, while the mining working face is propelled forwards, thegrouting anchor cable is additionally installed in the propelling direction constantly, an individual hydraulic prop and a hinge top beam of the working face end are pushed towards the front end of the advanced support constantly, and thus the distance of the advanced support is kept within the safe range. According to the method, the support efficiency and the mining efficiency are improved, thelabor intensity of the workers and the support cost are reduced, the support strength is higher, the support effect is better, and safe and efficiency production is achieved.

Description

technical field [0001] The invention relates to the technical field of mining roadway support, in particular to a mixed-type advance support method for a small-section mining roadway. Background technique [0002] The underground mining space is in a process of change, the production environment is complex and changeable, and the safety production situation is not optimistic. Frequent safety production accidents not only cause huge losses of life and property, but also have a bad impact on the entire society. The stability of roadway surrounding rock has an important impact on mine safety production. The instability of roadway surrounding rock causes a large number of casualties and property losses. Therefore, strengthening the control of roadway surrounding rock is of great significance to mine safety production. [0003] The advance support of the roadway is mainly to prevent deformation, movement and destruction of the surrounding rock of the roadway due to the superposit...

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned analysis, the present invention aims to provide a small-section mining roadway mixed advance support method to solve the problems of low support efficiency, high labor intensity, high cost, low mining efficiency, and effective support in existing support methods. Insufficient construction space and low operational safety and reliability

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