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Structure for preventing frost heave damage to an underground structure and a method of installing the same

  • US 6,309,142 B1
  • Filed: 05/22/1997
  • Issued: 10/30/2001
  • Est. Priority Date: 09/22/1995
  • Status: Expired due to Fees
First Claim
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1. A method of installing a frost heave damage preventive structure in soil having a seasonal freezing layer and a maximum freezing depth, the method comprising:

  • excavating a pile hole in the soil to a depth below the maximum freezing depth, wherein the excavated pile hole has a predetermined diameter and depth;

    inserting a pile into the pile hole, said pile having a plate-like reaction member which projects from an outer circumferential surface of the pile, wherein said reaction member is spaced from a bottom end of the pile and the predetermined diameter of the pile hole is greater than the diameter of the reaction member;

    driving the pile into the pile hole so that said reaction member is positioned at the bottom of said excavated pile hole below the maximum freezing depth; and

    back filling a space over the reaction member between said pile hole and said pile outer surface.

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