A processing method for steel cage of long helical bored cast-in-place pile

Abstract

The invention discloses a processing method for a long helical bored cast-in-situ pile reinforcement cage, and relates to the technical field of bored cast-in-situ pile reinforcement cages. The processing method of the steel cage of the long helical bored cast-in-place pile includes: prefabricating a fixed steel ring, a sharp cone-shaped steel ring and a fastening steel ring; making a steel cage skeleton; forming a sharp cone at the front end of the steel cage; Welding of the cage. Efficient and quick production can obtain a long helical bored pile reinforcement cage with a tapered bottom, small specification error, and overall standardization. The formed long auger bored pile reinforcement cage is stable and reliable, and can ensure effective vibration force when placed Conducted to the bottom of the reinforcement cage, it is suitable for the project of inserting the reinforcement cage into the cast-in-place pile after the long auger drilling presses the concrete.

Description

technical field [0001] The invention relates to the technical field of reinforced cages for bored cast-in-situ piles, in particular to a processing method for reinforced cages for long helical drilled cast-in-situ piles. Background technique [0002] Cast-in-situ pile refers to the pile hole formed in the foundation soil by means of mechanical drilling, steel pipe extrusion or manual excavation at the project site, and a pile made by placing a steel cage and pouring concrete in it. According to different hole-forming methods, Cast-in-situ piles can be divided into several categories such as immersed pipe piles, bored piles and bored piles. The main function of the reinforcement cage is the same as that of the vertical reinforcement of the column. It mainly plays a role in tensile strength. The compressive strength of concrete is high but the tensile strength is very low. It acts as a constraint on the concrete of the pile body so that it can bear a certain horizontal force....

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Problems solved by technology

[0004] Therefore, it is particularly important to make the reinforcement cage for long spiral bored piles. In addition to meeting the design and relevant acceptance specifications, the bottom 3-5m of the reinforcement cage should be made into a pointed cone, and there should be a reinforced structure to ensure vibration. The force is effectively transmitted to the bottom of the reinforcement cage; at present, there is no convenient and fast method suitable for making long spiral drilled cast-in-place pile reinforcement cages, especially the lack of standardized and fast methods for making the bottom of the reinforcement cage into a standardized pointed cone

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