(1) The specifications and quality of the steel bars entering the site shall meet the design requirements, and a warranty shall be attached. Raw materials shall be sampled and submitted for inspection according to the construction code. (2) Before making the steel cage, straighten the main reinforcement, remove the dirt and rust on the surface of the steel bar, and accurately control the length of the steel bar. (3) The steel cage is made of ring mold:
Production and technical requirements of reinforced cage for pressed-grouting pile
(1) The specifications and quality of the incoming steel bars shall meet the design requirements, and a warranty shall be attached. Raw materials shall be sampled and submitted for inspection according to the construction specifications.
(2) Before making steel cage, straighten the main reinforcement, remove the dirt and rust on the surface of steel bar, and accurately control the length of cutting material.
(3) The steel cage is made of ring mold:
Reinforcement cage should be made as a whole according to the design length; The main reinforcement and reinforcement should be spot welded firm, do not damage the main reinforcement; useE43andE50Welding rod welding.
Allowable deviation: spacing between main bars±10mm; Stirrup spacing±20mm; Diameter of the steel cage±10mm; The length of the steel cage±100mm;
Protective layer deviation is controlled in20mmOr less.
(4) The main bars of the steel cage are connected by electric welding, and the length of the binding strip is not less than that of the single side welding10D(DRepresents the diameter of the main rib); When welding on both sides, the binding length shall not be less than5D.
(5) the number of joints in the same section shall not exceed the total number of main reinforcement50%.Adjacent joints should be staggered up and down, the staggered distance should not be less than35D(DRepresents the diameter of the main rib).
(6) The steel cage is processed into tapered piles according to the requirements of the design drawings, and the total length is consistent with the design pile length.
(7) the feeding bar is connected with the vibration device when it is pierced into the steel cage on the ground; The steel guide bar directly contacts the end of the steel cage.
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