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Special Support of Coal Mining Face -- Advance Support of Upper and Lower Roadway in Coal Mining Face
Release time:
2022-12-30
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Special Support of Coal Mining Face -- Advance Support of Upper and Lower Roadway in Coal Mining Face
The advance support of the upper and lower roadway refers to the strengthening support within 20m from the working face. Generally, double shed lifting is adopted to strengthen support within 10m from the working face, and single shed lifting is adopted to strengthen support within 10~20m. In the figure, double shed lifting is adopted to strengthen support within 20m of the upper lane; within 20m of the lower lane, within 10m from the working face, double shed lifting is adopted to strengthen support, and within 10~20m, single shed lifting is adopted to strengthen support. The figure can also see the strengthening support of the working face and the cutting top line (section I-I and II-II) and the advance support of the lower level roadway (III-III).
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