N.J. Admin. Code § 19:6-2.54

Current through Register Vol. 56, No. 11, June 3, 2024

Section 19:6-2.54 - Concrete-filled pipe piles

(a) The pipe shall conform to the requirements of ASTM A252 in this subchapter.

(b) Minimum dimensions are:

1. Pipe installed open-end and having a nominal outside diameter of less than 14 inches shall be at least 0.25 inch thick. For diameters from 14 to 18 inches the minimum thickness shall be 0.310 inch. For diameters over 18 inches the minimum thickness shall be 0.375 inch.

2. Steel pipe piles installed with ends closed shall have a minimum nominal wall thickness of at least 0.215 inch.

(c) Installation rules are:

1. Pipe shells driven open-end shall be cleaned to the bottom of the shell after driving.

2. After cleaning, open-end piles driven to end bearing on rock or hardpan shall be reseated to full bearing by redriving, applying at least 150 blows of the hammer. If the pipe shell shows two inches or more of penetration on redriving, the pipe shall be recleaned and redriven in successive cycles until the penetration or redriving is less than two inches.

3. Pipe shells shall be inspected before filling with concrete, shall be clean, and shall meet the requirements for alignment and condition of the shells as specified with regard to the soils of cast-in-place piles.

4. Placing of concrete fill in pipe shells shall conform to the requirements for placing concrete fill in cast-in-place piles.

N.J. Admin. Code § 19:6-2.54