A three-dimensional detection device for foundation piles based on drilling radar and a three-dimensional detection method for foundation piles

Abstract

The invention relates to a three-dimensional foundation pile detection device and method based on a borehole radar. On the basis that a foundation pile is internally provided with a through hole, and the through hole extends in the axial direction of the foundation pile, the three-dimensional foundation pile detection device based on the borehole radar comprises the borehole radar, a traction module and a central control module. The borehole radar comprises an in-well antenna and a radar body, wherein the in-well antenna is connected with the radar body, and the radar body is connected with the central control module. The three-dimensional foundation pile detection method comprises the steps of positioning the in-well antenna, conducting three-dimensional scanning detection, conducting shifting detection, transmitting data, generating a three-dimensional image and the like. By the adoption of the technical scheme, detection of the integrality of the foundation pile, the thickness of pile bottom sediments and the length of a steel reinforcement cage can be achieved, the three-dimensional image can be obtained, and a detector can visually see the conditions of the foundation pile and the surroundings of the foundation pile.

Description

technical field [0001] The invention relates to the field of integrity detection of foundation piles, and more specifically, to a three-dimensional detection device for foundation piles based on drilling radar and a three-dimensional detection method for foundation piles based on the device. Background technique [0002] Among the conventional detection methods for the integrity detection of building foundation piles, the acoustic wave transmission method, the high-strain and low-strain method, and the core-drilling method are more common. Quite a few questions. Among them, the acoustic wave transmission method, low strain method and high strain method are non-destructive testing methods, but there are large test blind spots. They can be attributed to two-dimensional detection technology methods, which can only judge the depth position of the abnormality but cannot judge its orientation. Due to the limitations of the method itself, it is impossible to judge whether the abno...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that existing detection technology has a relatively large test blind area in foundation pile detection, and it is difficult to accurately judge the specific size and orientation of defects, and it is impossible to accurately detect the situation of pile bottom sediment and steel cage, etc. A three-dimensional inspection device for foundation piles and a three-dimensional inspection method for foundation piles based on borehole radar are proposed

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