A kind of pillar recovery method

A kind of pillar recovery method

CN
  • CN 108,825,233 A
  • Filed: 06/06/2018
  • Published: 11/16/2018
  • Est. Priority Date: 06/06/2018
  • Status: Active Application
First Claim
Patent Images

1. a kind of pillar recovery method, it is characterized in that:

  • Support column arrangement:

    There is armored concrete to be prefabricated into support column(

    2)

    , branchDagger is divided into two sections, reinforcing bar in support column(

    3)

    Extend 0.5m to rock crown, extends 0.5m to floor rocks;

    In reinforcing barFilling block is arranged firmly and at 15 centimeters of rock crown seam in concrete support(

    4)

    , the filling block is using cement prefab or stoneBlock filling;

    Pillar recovery method:

    By pillar of the two prefabricated support columns in mine hole(

    1)

    , utilize the cutting of miningMachine-cut cuts pillar, retains support column after having cut ore pillar.

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