Method of making cast-in-place prestressing concrete pile by...

Details Method of making cast-in-place prestressing concrete pile by... Method of making cast-in-place prestressing concrete pile by...

E - Fixed Constructions

02

D

61/84

E02D 5/34 (2006.01)

Patent

CA 1235302

ABSTRACT OF THE DISCLOSURE A method of making a cast-in-place prestressed pile by means of a movable casing set composed of some separable casings which can be displaced vertically, and pull and push each other after displacing. Reinforcing cage and prestressing strands can be placed within the casing set. After grouting, each section, the casings can be pulled out one by one with an external force to overcome friction between the earth and casings till complete removal of all casing, a cast-in-place pile is then formed, and the movable casing set can be used at another spot.

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