Coal mine gob-side entry retaining side supporting method

2013 
The invention discloses a coal mine gob-side entry retaining side supporting method. The coal mine gob-side entry retaining side supporting method comprises the following steps of supporting the coal mine gob-side entry retaining side through intensive individual hydraulic supporting columns; constructing anchor cable supports for the gob-side entry retaining top plates based on the original rocker bolt supports, enabling the gob-side entry retaining to adopt double-line rocker bolt supports, enabling the distance between the rocker bolts to be 2 m and the row distance to be 2.2 m and enabling the anchor bolts which are close to one side of the coal wall to be installed along a certain inclination angle and the anchor bolts which are close to one side of a gob to be installed perpendicular to the top plates; constructing a row of single hydraulic supporting columns on the inner side of the intensive single hydraulic supporting columns after the designed pretress of the anchor bolts is achieved and enabling the column distance to be 1.2 to 1.5 m; enabling the insensitive single hydraulic supporting columns to be out successively from back to front and enabling supplement single hydraulic supporting columns and the installed anchor bolts to be formed into a gob-side entry retaining side auxiliary supporting system. The coal mine gob-side entry retaining side supporting method solves the problem that the gob-side entry retaining side supporting is difficult.
    • Correction
    • Source
    • Cite
    • Save
    • Machine Reading By IdeaReader
    0
    References
    0
    Citations
    NaN
    KQI
    []