Ultra-large-diameter pile foundation assembly type wharf structure and construction method thereof

Abstract

The invention discloses an ultra-large-diameter pile foundation assembly type wharf structure. The structure is composed of an ultra-large-diameter pile, a T-shaped pile cap, a rubber blanket, a slurry sealing steel plate, grouting material and a wharf upper structure; the lower end of the ultra-large-diameter pile is arranged below a mud surface, the upper end of the ultra-large-diameter pile is welded with the slurry sealing steel plate, the rubber blanket is pasted on the slurry sealing steel plate, the T-shaped pile cap is inserted into the upper end of the ultra-large-diameter pile, and the grouting material fills the gap among the T-shaped pile cap, the ultra-large-diameter pile, the rubber blanket and the slurry sealing steel plate to enable the T-shaped pile cap and the ultra-large-diameter pile to be integrated; the upper part of the T-shaped pile cap is connected to the wharf upper structure through cast-in-place nodes; and the wall thickness of the ultra-large-diameter pile is 3.5-7cm and the diameter of the ultra-large-diameter pile is 4-7m. The invention further discloses a construction method of the ultra-large-diameter pile foundation assembly type wharf structure. The structure and the method have the advantages that open sea construction does not need a pile clamping procedure during a construction period, the amount of concrete poured on site is small, the node connection speed is high, the assembly degree is high, and the number of open sea operators and the protection measure cost are reduced.

Description

technical field [0001] The invention relates to the field of engineering technology, in particular to an assembled wharf structure and a construction method thereof. Background technique [0002] For offshore projects such as deep-water wharfs, offshore bridge foundations, offshore wind power foundations, etc., the most traditional structural form is pile foundation + cast-in-place concrete superstructure. Resists horizontal loads. Traditional structural forms in offshore waters have: 1) On-site pouring of concrete is required, difficult maintenance, low construction efficiency, and long construction period; 2) Affected by construction equipment technology, the pile diameter is small, the single pile rigidity is small, and the construction period must be Add auxiliary measures such as clamping piles to ensure safety; 3) The existence of inclined piles makes construction more difficult and the degree of assembly is low; 4) Especially when the structure is far from the shore,...

AI Technical Summary

Problems solved by technology

Traditional structural forms in offshore waters have: 1) On-site pouring of concrete is required, difficult maintenance, low construction efficiency, and long construction period; 2) Affected by construction equipment technology, the pile diameter is small, the single pile rigidity is small, and the construction period must be Add auxiliary measures such as clamping piles to ensure safety; 3) The existence of inclined piles makes construction more difficult and the degree of assembly is low; 4) Especially when the structure is far from the shore, the inherent engineering construction efficiency of traditional structural forms, Issues such as safety, quality, and cost have become more prominent. Usually, the number of ordinary piles that need to be laid on a wharf is about 300, and the pile driver needs to be moved many times, so the construction time is long, the cost is high, and the strength is high.

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