A high-strength cast pipe pile

Abstract

The invention discloses a high-strength pouring pipe pile, which relates to the field of pipe piles, and comprises an outer pile body, a conical tip is fixed at the lower end of the outer pile body, and a vertical inner pile is arranged on the inner side of the outer pile body body, the internal activities of the inner pile body run through a plurality of vertical arc-shaped risers, the lower end of the arc-shaped riser runs through the bottom wall of the inner pile body and is fixed to the inner bottom wall of the outer pile body, and the inner side of the inner pile body The vertical main reinforcement arranged in a ring is fixed, and the main reinforcement is fixedly set with stirrups, the lower end of the inner pile body is equipped with a plurality of buffers located in the outer pile body, and the upper end of the inner pile body is fixed outside. For the flange, the inner pile body is vertically provided with a plurality of first material through holes. The invention not only has a double pile body, so that the overall strength is high, but also when the concrete is added, the inserted rod and the inserted tooth will penetrate into the soil on the side wall of the pile hole, thereby increasing the connection between the pile body and the soil, making the pile The body is fixed more firmly, and the use effect is good.

Description

technical field [0001] The invention relates to the field of pipe piles, in particular to a high-strength cast pipe pile. Background technique [0002] The concrete-filled steel pipe pile is a common pile type in the field of pile foundations, and its characteristic is that a steel pipe is sheathed on the outer surface of the concrete core. Due to the restraining effect of the outer steel pipe on the inner concrete core, the vertical bearing capacity and bending resistance of the pile body are greatly improved when the concrete strength of the pile body is the same. The hole equipment is drilled in advance, and then the pipe pile is hoisted in the pile hole, and then concrete is added to the pile body. However, at this stage, the pile body of the steel pipe concrete pile is smooth and flat, and the connection effect with the pile hole soil is not enough Well, the fixing effect of the pile body after installation is not good enough. For this reason, a high-strength pouring p...

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Problems solved by technology

Due to the restraining effect of the outer steel pipe on the inner concrete core, the vertical bearing capacity and bending resistance of the pile body are greatly improved when the concrete strength of the pile body is the same. The hole equipment is drilled in advance, and then the pipe pile is hoisted in the pile hole, and then concrete is added to the pile body. However, at this stage, the pile body of the steel pipe concrete pile is smooth and flat, and the connection effect with the pile hole soil is not enough Well, the fixing effect of the pile body after installation is not good enough. For this reason, a high-strength pouring pipe pile is needed

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