Large wall thickness foundation sinking method by combining diversion and negative pressure technology

Large wall thickness foundation sinking method by combining diversion and negative pressure technology

  • CN 101,718,096 B
  • Filed: 11/10/2009
  • Issued: 10/30/2013
  • Est. Priority Date: 11/10/2009
  • Status: Active Grant
First Claim
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1. the large wall thickness foundation sinking method that combines of a water conservancy diversion and negative pressure technique, it is characterized in that:

  • consisted of by the flow guide system of base wall and the negative pressure system of basic top cover, the flow guide system of base wall comprises along the vertical hole of barrel girth spaced set, in the vertical hole dredging tube is set, be provided for air supply pipe and/or the feed pipe of water conservancy diversion in the middle of the dredging tube, the dredging tube bottom arranges horn-like cone-shaped cavity and the cavity that loosens the soil, the baffle for separating that the cavity that loosens the soil arranges by vertical hole bottom;

    The negative pressure system of basis top cover is taken out negative pressure hole for reserving at basic top pressure closure, and dredging tube and the air supply pipe and/or the feed pipe that are used for water conservancy diversion all pass from top pressure closure.

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