Immediate processing method after bored concrete pile card pipe

Immediate processing method after bored concrete pile card pipe

  • CN 108,179,752 A
  • Filed: 12/27/2017
  • Published: 06/19/2018
  • Est. Priority Date: 12/27/2017
  • Status: Active Application
First Claim
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1. immediate processing method after bored concrete pile card pipe pours cast-in-place pile concrete using tremie method, concrete card pipe during which occursWhen can not continue to pour down, it is characterised in that:

  • Before determining that the outer concrete of conduit is in initial set, mobility there is not loss substantially, toolHave after can continuing filling property, spare conduit is inserted into 1.5m or so depth in pouring concrete;

    Spare lead will be put under proof submersible sand discharging pumpTo pouring concrete top face 0.5m or so places in pipe, start dredge pump and extract mud outward, until mud in spare conduitWhen being extracted into close to dredge pump top surface, then dredge pump gradually transferred, and mud is all exhausted, take out blowdown during dredge pumpPump does not close power supply;

    Mouth will be poured under hopper and spare conduit is suitable for reading is fixedly connected, it is 18- to restart to pour slumpThe underwater concrete of 20cm continues in placing concrete, after removing a spare conduit of section every time, ensures remaining spare conduit embedmentDepth is not less than 2.0m and no more than 4.0m in concrete, and after the completion of final concreting, reserved pile crown is not than card pipe occursThe normal pile crown of accident reserves more than 1.0m height more.

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