Method for quickly retracing comprehensive mechanized coal mining face in long-distance service roadway multi-channel manner
A fully-mechanized mining face and multi-channel technology, applied in tunnels, mining devices, mining equipment, etc., can solve problems affecting the safety of fully-mechanized mining face, rapid relocation, impact, deformation, etc., to reduce roadway support costs , Improve the effect of stress environment and more safe channels
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[0028] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0029] The invention provides a method for quickly retracting a fully mechanized mining face with multiple channels in long-distance auxiliary roads.
[0030] Such as figure 1 , figure 2 and image 3 Shown is a schematic diagram of the method during implementation, and the specific implementation steps are as follows:
[0031] (1) Before the stop-mining line 3 is 300m ahead of the working face 6, at a distance of 60-80m from the stop-mining line 3, a transport roadway 1 that is basically parallel to the stop-mining line 3 is excavated along the coal wall; the clear width of the roadway is 4.5 ~5.0m, net height 3.6~3.8m, the bottom plate is solidified with concrete, supported by anchor net cables, the support parameters are as follows:
[0032] Net: ...
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