Method and apparatus for piled foundation improvement with...

Details Method and apparatus for piled foundation improvement with... Method and apparatus for piled foundation improvement with...

E - Fixed Constructions

02

D

61/49, 61/69, 61

E02D 5/46 (2006.01) E02D 27/52 (2006.01)

Patent

CA 1293383

ABSTRACT OF THE DISCLOSURE The invention relates to a method and apparatus for increasing the capacity of a tubular driven pile. A refrigeration unit is lowered into the pile and grouted in place above a cement plug. The area between the refrigeration unit and the plug is filled with a secondary refrigerant. Seawater fills the pile above the refrigeration unit and is used for refrigeration unit cooling. The refrigeration unit cools the brine until the soil surrounding the pile is frozen. The adfreeze strength of the frozen soil and the pile increase the pull- out resistance of the pile. Further, the end-bearing capacity of the pile is increased as a result of the large frozen mass surrounding the pile.

530411

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