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Concrete tubular pile for oceans

A concrete pile and concrete technology, applied in sheet pile wall, construction, infrastructure engineering and other directions, can solve the problems of inability to adapt to the force around the pipe pile, poor corrosion resistance and impact resistance, etc., to protect from corrosion, reduce The amount of reinforcement used and the effect of increasing impact resistance

Inactive Publication Date: 2016-01-20
黄贺明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reinforced pipe pile has strong penetration ability and high concrete strength, but its disadvantage is that the pipe pile is not suitable for the marine environment, its corrosion resistance and impact resistance are not good, and the non-prestressed steel reinforcement The asymmetric setting cannot adapt to the characteristics of the force around the pipe pile in the marine environment

Method used

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  • Concrete tubular pile for oceans
  • Concrete tubular pile for oceans

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 and 2 As shown, a concrete marine pipe pile includes a concrete pile body 1 and a steel skeleton cage placed in the concrete pile body 1. The steel skeleton cage includes a spiral reinforcement 2 and a plurality of prefabricated steel pipes fixed on the spiral reinforcement and distributed in a circle. Stress tendons 3, the prestressed tendons 3 are evenly distributed, and a non-prestressed tendon 4 is arranged between adjacent prestressed tendons 3, the length of the non-prestressed tendons 4 is smaller than the length of the prestressed tendons 3, and each The lengths of the non-prestressed tendons 4 are different, and the lengths of the non-prestressed tendons increase successively, so that the non-prestressed tendons present a circumferential stepped distribution. The two ends of the spiral rib 2 form a spiral rib densification area 8, the length of the densification area is 180 mm, and the densification interval is 40 mm.

[0032] Both ends of th...

Embodiment 2

[0036] In addition to 600 parts of cement, 250 parts of mineral active admixtures, 100 parts of inert admixtures, 1500 parts of sand, 32 parts of early-strength superplasticizers, 200 parts of water, 156 parts of steel fibers of 0.08mm~0.20mm, steel bars The thickness of the concrete protective layer of the skeleton cage is 30mm, and other conditions are the same as embodiment 1.

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Abstract

The invention discloses a concrete tubular pile for oceans. The concrete tubular pile comprises a concrete pile body and a steel reinforcement framework cage arranged in the concrete pile body. The steel reinforcement framework cage comprises spiral bars and prestressed bars fixed to the spiral bars in a circumferential mode. The prestressed bars are uniformly distributed, the prestress tension value is not higher than 60% of the design strength value, one or more non-prestressed bars are arranged between every two adjacent prestressed bars, the length of the non-prestressed bars is smaller than that of the prestressed bars, and the non-prestressed bars are different in length. The concrete tubular pile is high in corrosion resistance and shock resistance, large in bending moment, suitable for being used in areas high in salinization concentration, especially in the ocean environment, and excellent in corrosion resistance, shock resistance and impact resistance.

Description

technical field [0001] The invention relates to the field of marine engineering construction, in particular to a concrete marine pipe pile. Background technique [0002] Pipe pile is a kind of prefabricated engineering pile, which is mainly used in pile foundation engineering to improve the bearing capacity of foundation and foundation. It transfers the upper building load to the deep soil layer with strong bearing capacity, or squeezes the soft soil layer Dense to improve the bearing capacity and compactness of foundation soil. Pipe piles have been greatly developed from the beginning of the last century to the present. Based on the characteristics of high single pile bearing capacity of pipe piles, fast construction speed and high work efficiency of pipe piles, pipe piles have been expanded from the initial application in railway systems to the current It has been widely used and played a huge role in industrial and civil construction, municipal, metallurgy, ports, highwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/30E02D5/58
Inventor 黄贺明刘福财李斌肖敏王贻远
Owner 黄贺明