Hydraulic and earth engineering – Foundation – Columnar structure
Patent
1986-12-15
1988-01-26
Stodola, Nancy J.
Hydraulic and earth engineering
Foundation
Columnar structure
405257, 405284, E02D 560, E02D 522
Patent
active
047214180
ABSTRACT:
A pile jacket (15) is placed about a pile (14) before backfill earth (45) is filled in about the pile. The pile jacket (15) is formed of laminated sheet material (20) having opposed, parallel spaced outside sheets (21 and 22) and with intermediate supporting ribs (24) that maintain the outside sheets in spaced relationship. The indentations (48) made by the backfill earth (45, 46) in the pile jacket generally do not destroy the flat abutment of the inside sheet (21) with the surface of the pile, so that a slip plane is maintained between the pile jacket and the pile, permitting the pile jacket to move downwardly when the backfill material settles without transmitting a major downward load from the backfill material to the pile.
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