Fiber reinforced composite material rib concrete drainage pipe pile

Abstract

The invention discloses a fiber reinforced composite material rib concrete drainage pipe pile which comprises a pile body, an end plate and inner sleeves. The pile body is internally provided with fiber reinforced composite material ribs. Carbon fiber is adopted for the material ribs to serve as the reinforcing materials, and unsaturated polyester or epoxy resin or phenolic resin serves as the base body. The material ribs are sleeved with steel pipes. The inner wall of the pile body is evenly provided with concrete protrusions, and the pipe pile body is evenly provided with a certain number of drainage holes. According to the fiber reinforced composite material rib concrete drainage pipe pile, steel ribs are replaced by the fiber reinforced composite material ribs, the problem that ordinary reinforced concrete piles are prone to crack after being pulled is effectively solved by the adoption of the advantages of the high-elasticity modulus, corrosion resistance and the like of carbon fiber ribs, and the service life of the permeable pipe pile is prolonged. Meanwhile, the fiber ribs are sleeved with the steel pipes, and the fiber ribs are separated from the concrete, so that the situation that a concrete structure interface is stripped and damaged due to insufficient fiber rib-concrete interface strength is avoided, and the inner wall of the pile body is creatively provided with the concrete protrusions so that the permeable pipe pile can be pulled out in the future demolition conveniently to rebuild the building foundation.

Description

technical field [0001] The invention relates to a fiber-reinforced composite material reinforced concrete drainage pipe pile. Background technique [0002] Traditional reinforced concrete permeable pipe piles are widely used in pile foundation engineering. However, for coastal areas and areas with shallow groundwater levels, the application of traditional reinforced concrete permeable pipe piles is facing severe difficulties. Specifically: [0003] The thickness of the reinforcement protective layer is difficult to grasp. Not only the outside of the pile but also the thickness of the hole reserved in the pile body must be considered. If the thickness is not enough, the reinforcement will be easily corroded. If the thickness is sufficient, the steel bars cannot be well distributed, and there is not enough space to place steel bars that meet both the thickness of the cover and the reinforcement requirements. [0004] The design service life of traditional reinforced concre...

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Problems solved by technology

[0007] From the above reasons, it can be concluded that traditional reinforced concrete can no longer adapt to and meet the current design and use requirements. In order to prolong the service life, materials with strong crack resistance and aging resistance must be used. At the same time, the corrosion resistance of the material must be very good. The thickness of the concrete protective layer is not sensitive, and the cost should not be too high, otherwise the loss outweighs the gain. The drainage hole must have a certain adjustment ability, which is convenient for use in strata with various water contents.

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