Major-diameter prestressed concrete pipe pile of glass steel pipe die and preparation method thereof

Abstract

The invention discloses a major-diameter prestressed concrete pipe pile of a glass steel pipe die. A concrete lining is arraigned in a glass steel pipe external die; a reinforcement cage consisting of a prestressed longitudinal bar and a spiral stirrup is arranged in the concrete lining; and a steel end plate and a steel plate inside band are arranged at two ends of the pile. An assembled multi-section steel sleeve working component for temporarily bearing prestressing stretch-draw anchoring force is arranged on the periphery to temporarily wrap the glass steel pipe external die, a gap between the steel sleeve working component and the glass steel pipe external die is tightly wedged by using a wooden triangular block; the steel sleeve working component bears the stretch-draw anchoring force of the prestressed longitudinal bar; and a centrifugal machine rotates the steel sleeve working component to drive the glass steel pipe external die to rotate. The major-diameter prestressed concrete pipe pile with arbitrary pile body length can be manufactured on site, and overcomes the defects that the conventional major-diameter pre-tensioning method prestressed concrete pipe pile has fixed pile body length, an over-long pipe pile is difficult for long-distance transportation, a prestressed reinforcement is easy to be rusted and is easy to be cracked during transportation and hoisting, and the like.

Description

technical field [0001] The invention relates to a concrete prefabricated pipe pile for civil engineering and a preparation method thereof, which is applied to foundation treatment in fields such as bridges and port engineering, and can conveniently manufacture pipe piles with arbitrary pile lengths on site. Background technique [0002] Steel pipe piles and prestressed concrete pipe piles are used as foundation treatment measures for many large bridges and port projects in coastal areas of our country. Steel pipe piles have the advantages of strong penetration capacity, high bearing capacity, small soil squeezing effect, convenient pile connection, strong horizontal bending resistance, and small hoisting weight. However, steel pipe piles are easy to corrode and expensive. Prestressed concrete prefabricated pipe piles have the advantages of low cost, convenient pile connection, short construction period, and easy guarantee of prefabricated quality, but they have high transpor...

AI Technical Summary

Problems solved by technology

Traditional prestressed concrete prefabricated pipe piles are manufactured in factories, and the long-distance transportation of super-long pipe piles is difficult, and there are problems such as single mold specifications, fixed length of single-section pile body, pile connection or pile cutting, etc. The mold length of the pile is fixed The contradiction with the change of pile length in engineering design is particularly prominent

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