Steel shell concrete empty detection mesh generation device

Abstract

The invention discloses a steel shell concrete empty detection mesh generation device, comprising a frame, supporting columns and mesh lines. The frame comprises two transverse rods and two longitudinal rods. The transverse rods and the longitudinal rods are uniformly equipped with a plurality of line through holes along own length directions. The four supporting columns are placed at four top corners of a typical detection unit. A height of each supporting column is not smaller than the maximum bare height of a pouring hole and exhaust holes. The mesh lines comprise mutually vertical transverse lines and longitudinal lines. The space between two adjacent transverse line and longitudinal line can be adjusted. The pouring hole is located under an intersection point. T ribs are located underthe transverse lines or longitudinal lines. According to the device, flexible adjustment is carried out on a stainless frame size according to a size of the typical detection unit, so a plane lengthand width size requirement of the detection unit is satisfied. An S type traversing mode of a longitudinal and transverse size can be selected according to a structure feature of the typical detectionunit, so flexible assembly of various detection meshes of different typical detection units in an empty detection object is finished.

Description

technical field [0001] The invention relates to the application field of radioisotope technology, in particular to a grid division device for void detection of steel shell concrete. Background technique [0002] For some steel shell-concrete structures such as large-scale water conservancy and hydropower, submarine tunnels, bridges, and construction projects, during the pouring construction process, there are often gaps between the concrete and the steel plate lining, which affects the safety and durability of the structure. . [0003] The applicant applied for an invention patent application with the application number CN109342463A on November 29, 2018. The name of his invention is "a steel shell-concrete void detection device", which cleverly uses the content of hydrogen atoms in concrete to determine the fast The principle of moderation and deceleration of neutrons, the metal standard plate and the organic material standard plate are clamped vertically or horizontally an...

AI Technical Summary

Problems solved by technology

However, due to the impact of the structure of typical detection units, the detection grid layout is generally irregular, resulting in low efficiency of manual grid division and prone to grid size errors

[0005] In addition, the scale calculation method is not suitable for large-scale repetitive typical detection unit grid division. In practical applications, there may be thousands of typical detection units in the void detection object of steel shell concrete structure, and the same type of detection The number of units may also be hundreds or even thousands, making it difficult to meet the requirements of on-site rapid detection in terms of detection efficiency and accuracy

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