Device and method for detecting cracks in reinforced concrete foundation of overhead transmission line

Abstract

The invention provides an overhead power transmission line reinforced concrete foundation crack detection device and method. The device comprises a detection passage and an industrial endoscope which can be placed in the detection passage, the detection passage is a transparent pipe with a semicircular section, the bottom end of the detection passage is of a closed structure while the top end of the same is of an openable and closeable structure, and the industrial endoscope is connected with a handheld terminal through an axial cable. The overhead power transmission line reinforced concrete foundation crack detection device and method has the advantages of simple technology, low cost and supportiveness of directly observing whether the surface of an overhead power transmission line reinforced concrete foundation is cracked or not and detecting width of the surface to avoid power transmission failures caused by accidental damage to the reinforced concrete foundation.

Description

technical field [0001] The invention relates to the field of structural safety detection, in particular to a method and device for detecting the width of cracks on the surface of reinforced concrete foundations of overhead transmission lines below the ground, which are used for judging the strength and durability of reinforced concrete foundation structures. Background technique [0002] Concrete cracking is a "common disease" that occurs in concrete structures. Reports about cracks affecting project quality and even causing accidents are common. Concrete is an engineering material widely used in the foundation of overhead transmission lines. The reinforced concrete foundation of overhead transmission lines is embedded in the soil. If cracks occur, the degree of corrosion of concrete and steel bars will increase, which will affect the bearing capacity and durability of the foundation. sex. It is of great significance to ensure the safe operation of the entire overhead trans...

AI Technical Summary

Problems solved by technology

However, the reinforced concrete foundation of overhead transmission lines is buried below the ground, and conventional methods cannot detect whether the surface is cracked. The existing concrete structure crack detection technology is mainly aimed at reinforced concrete structures with a large exposed area or above the ground, and uses the relevant principles of signal transmission to detect concrete cracks

Existing methods cannot detect cracks in reinforced concrete foundations of overhead transmission lines with very small exposed areas and deep buried depths, and cannot directly observe whether the surface of concrete foundations is cracked or not and the width of cracks, and the technology is complex and costly

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