Device for detecting side friction of steel pipe pile and construction method

Abstract

The invention belongs to the technical field of civil engineering construction, and particularly relates to a device for detecting the side friction of a steel pipe pile and a construction method. Thedevice comprises a pile side bracket arranged on the steel pipe pile, a stress platform is arranged below the pile side bracket, a force transmission device is connected between the stress platform and the pile side bracket, and at least one buoyancy airbag is arranged below the stress platform. The construction method comprises the steps that ultimate uplift force is observed and reached througha displacement sensor, then a numerical value of a dynamometer is observed, the actual ultimate side friction value is calculated through the numerical value measured by the dynamometer, the actual ultimate side friction value is compared with a theoretically calculated ultimate side friction standard value, and whether the steel pipe pile can be safely constructed or not is judged. The detectiondevice is simple in structure, can visually perform detection, is simple and convenient in construction operation, and can effectively detect the actual limit side friction.

Description

technical field [0001] The invention belongs to the technical field of civil engineering construction, and in particular relates to a device and a construction method for detecting side friction resistance of steel pipe piles. Background technique [0002] Pile side friction is used as the core problem of pile foundation design, and its bearing capacity is mainly borne by pile side friction. In existing designs, pile side friction is calculated. However, in practical applications, due to the environment The impact of pile side friction is obvious, especially the side friction of offshore steel pipe piles, which is difficult to obtain from theory. If it is only calculated, it will seriously affect the bearing force of the steel pipe pile, making the construction safety poor. Contents of the invention [0003] The object of the present invention is to provide a device and construction method for detecting the side friction of steel pipe piles, so as to solve the influence o...

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Problems solved by technology

[0003] The object of the present invention is to provide a device and construction method for detecting the side friction of steel pipe piles, so as to solve the influence of the steel pipe piles mentioned in the prior art by the environment, especially the side friction of offshore steel pipe piles, It is difficult to obtain from the theory, which seriously affects the bearing force of steel pipe piles and poor construction safety.

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