Crane lifting program steps

     According electric  hoist gantry crane  test pile construction situation, piles generally 15 meters, so basically steel cage in this length. The high water table due to space, so pouring concrete pouring method are used underwater, catheters need to extend to the bottom part of the pile, pipe and hopper together a total length of more than 15 meters, shall be vertical lifting, so the project was lifting objects height is high.

    1 electric hoist  gantry crane  hoisting machine of choice: use in conjunction 25t truck crane lifting operations carried out in this project.
    (2) In the reinforcement steel cage welding on steel rings, rings welded to the top of the steel cage with a rope tied with snap ring with lifting, lifting, lifting slowly to prevent plastic deformation reinforcement cage, wire rope size: 6 × 37 +1- φ15.5.
    3 steel cage lifting height of two meters over Weidang only when the electric hoist  overhead gantry crane  jib rotation to the floor. Rotary drilling rig should take necessary precautions to prevent the collision.
    4 steel cage hanging from holes in the top after slowly falling under the command of someone close to orifice pairs again only after the reinforcement cage down into the hole, and to ensure that the vertical reinforcement cage into the hole, to avoid holes wall of mud into the hole. Must be in strict accordance with the rules and operating  operators operating personnel must be certified.
    5 steel cage into the hole, press the hole depth of the catheter connection into a whole, and were linked with the hopper, hanging into the hole. With the pouring of concrete, according to the depth of electric hoist gantry crane with lifting conduit, pouring up to a certain height, the catheter stuck in the base, remove the excess catheter until the concrete pouring into the hole.