Prefabricated hexagonal energy pile and manufacturing method thereof

Abstract

The invention discloses a prefabricated hexagonal energy pile and a manufacturing method of the prefabricated hexagonal energy pile. Solid steel bars are used as pre-stressed main reinforcements of the prefabricated pile, hollow steel pipes are used as constructional main reinforcements of the prefabricated pile, and heat transfer pipes are embedded in the hollow steel pipes; the exterior of a pile body where the heat transfer pipes are embedded is in the shape of a hexagon, and the interior of the pile body where the heat transfer pipes are embedded is in the shape of a circle; the heat transfer pipes are connected by heat transfer elbows to form U-shaped loops at the bottom of the prefabricated pile; the heat transfer pipes are arranged at sharp corner positions where the wall thickness is large, namely, the six corners of the hexagon. The heat transfer pipes are embedded in the hollow steel pipes, and therefore the technical problems of mutual interference, poor concrete compactness, reinforcement corrosion, influences on the overall bearing capacity of a pile foundation and the like caused by binding and embedding of the heat transfer pipes and the main reinforcements are effectively solved; besides, the survival rate of the embedded pipes is higher, a large number of pile bodies can be conveniently stacked and safely transported, a construction period is short, underground space is saved, and construction cost is lowered.

Description

[0001] technical field [0002] The invention relates to the technical field of ground source heat pump system pile buried pipes, in particular to a hexagonal prefabricated energy pile and a manufacturing method thereof. It is mainly applicable to the field of construction pile foundation and ground source heat pump technology. [0003] Background technique [0004] Ground source heat pump technology is a new technology that effectively utilizes underground renewable energy, which is of great significance to the national energy conservation and emission reduction strategy. This technology takes advantage of the relatively stable temperature characteristics of underground soil, surface water, and groundwater, and uses the earth as an energy storage body to exchange heat (transfer underground heat to the upper building in winter; store upper heat underground in summer). Air-conditioning system, which can replace traditional air-conditioning technology. Buried heat exchanger...

AI Technical Summary

Problems solved by technology

In this way, the mutual influence between the heat transfer tube and the steel cage can be effectively solved, and technical problems such as the decrease of the overall bearing capacity of the pile foundation caused by the laying of the heat transfer tube can be avoided.

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