Core-filled concrete pouring device and method for prestressed concrete pipe pile joints

Abstract

A core-filled concrete pouring device at the joint of prestressed concrete pipe piles, suitable for cooperating with two prestressed concrete pipe piles, each prestressed concrete pipe pile includes a surrounding wall in the shape of a hollow column that surrounds an accommodating area, and an annular end plate arranged around one end of the wall. When connecting piles, two prestressed concrete pipe piles are terminated up and down, and two surrounding walls jointly surround an accommodating space. The core-filled concrete pouring device includes a partition plate arranged in the accommodation area of ​​the lower prestressed concrete pipe pile, a pouring hole penetrating through the surrounding wall of the upper prestressed concrete pipe pile, and an observation hole matching the pouring hole. The definition of accommodation space includes an installation area between the observation hole and the partition. The installation area is for installing a steel structure. When the concrete is poured, it cooperates with the steel structure. After the concrete is dry and hard, the joint of two prestressed concrete pipe piles is completed. pile. The invention can accurately evaluate the pouring amount of concrete, and improve the strength and durability of pile joints.

Description

technical field [0001] The invention relates to a core-filled concrete pouring device for prestressed concrete pipe piles, and a method for connecting prestressed concrete pipe piles, in particular to a method for pouring core-filled concrete at the pile connection of prestressed concrete pipe piles A core-filled concrete pouring device, and a method for connecting prestressed concrete pipe piles matched with the core-filled concrete pouring device. Background technique [0002] Prestressed concrete pipe piles are suitable for the foundation structure of large buildings, and can transfer the load of the building to the soil bearing layer or the harder ground to increase the safety and stability of the building structure. Prestressed concrete pipe piles are a type of pile foundation that is often used because of their high strength, high stability, and high durability, as well as the advantages of rapid construction. [0003] refer to figure 1 , is an existing prestressed c...

AI Technical Summary

Problems solved by technology

[0006] However, due to the length of the multi-section prestressed concrete pipe pile 1 after the pile connection is very long, and it goes deep into the formation

When pouring concrete, it is usually poured from the top of the top prestressed concrete pipe pile 1. When the concrete passes through a considerable height difference, the aggregates in the concrete are likely to be too concentrated, and the cement slurry cannot Completely fill the gaps between the aggregates, resulting in material separation, which will affect the strength of the combination of concrete and the reinforcement cage 21

In addition, when pouring concrete from the prestressed concrete pipe pile 1 located at the top, engineers cannot directly observe the pouring situation, nor can they measure whether the amount of concrete poured is sufficient. Usually, the amount of concrete poured is estimated based on experience, or an excessive amount is used. of concrete to ensure adequate pouring

This will not only cause inconvenience in pouring, but also cause waste of cost by using excess concrete

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