Concrete filled steel pipe pile and manufacturing method thereof

Abstract

The invention discloses a concrete filled steel pipe pile. The concrete filled steel pipe pile comprises multiple steel tubes. Each steel tube is filled with concrete. The heads and ends of the multiple steel tubes are connected through connecting pieces to form a pile body. The top end of the pile body is connected with a loading device through connecting pieces. The loading device drives the pile body to be pressed into a soil body. The bottom end of the pile body is fixedly connected with a tapered pile head to fix the pile body. The outer wall of each steel tube is fixedly connected a spiral stiffening rib from one end to the other end in the circumferential direction. The spiral stiffening ribs on the pile body formed by the multiple steel tubes are connected in the same rotating direction. According to the other scheme, the invention provides a manufacturing method of the concrete filled steel pipe pile. Through the concrete filled steel pipe pile and the manufacturing method thereof, the problems that the bearing capacity of a pile body is not enough due to small pipe side friction of an existing concrete filled steel pipe pile, the traditional welding connection speed is low, traditional welding connection is easily affected by the weather and the welding connection quality is not easy to ensure are solved.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a steel pipe concrete pile and a method for manufacturing the steel pipe concrete pile. Background technique [0002] As a rod-shaped component, the pile transmits the weight of the superstructure to the soil or rock layer through the pile body, so as to keep the overall building with less settlement and ensure the safety of the building, which is very important for buildings. In actual engineering, there are many types of piles, which can be divided into friction piles, end-bearing friction piles, end-bearing piles and friction end-bearing piles according to the load transfer form. Friction pile means that the pile is in a soft soil layer, the vertical load is mainly borne by the side friction resistance of the pile, and the resistance at the pile end is basically negligible; the end-bearing friction pile means that the vertical load is mainly borne by the ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a concrete-filled steel pipe pile, which solves the problems of insufficient pile body bearing capacity, slow connection speed, and difficulty in ensuring the quality of the existing steel pipe concrete pile due to the small side frictional resistance of the existing steel pipe concrete pile.

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