Concrete wool flushing quality evaluation method, device and system

Abstract

The invention discloses a concrete wool washing quality evaluation method, device and system, and the method comprises: scanning a target region of concrete subjected to wool washing operation through scanning equipment, and obtaining the three-dimensional point cloud data of the target region and a target region image according to a scanning result; preprocessing the three-dimensional point cloud data, and determining roughness parameters of the target area based on a predetermined working condition, a pre-constructed working condition-roughness relationship and the preprocessed point cloud data, wherein the roughness parameters includes at least one of the following: a filling volume, an average fluctuation degree, a normal vector statistical index, a surface area expansion rate and a curvature statistical index; preprocessing the target area image, identifying the preprocessed image based on a boundary identification algorithm, and determining image features of the target area based on a predetermined working condition, a pre-constructed working condition-image feature relationship and the identified image; and evaluating the concrete scouring quality according to the roughness parameter and the image feature of the target area.

Description

technical field [0001] The invention relates to the technical field of concrete flushing, in particular to a method, device and system for evaluating the quality of concrete flushing. Background technique [0002] The interface between old and new concrete widely exists in various concrete structures, such as concrete dams, bridges, tunnels, etc. The performance of the interface between old and new concrete directly affects the bearing capacity, impermeability, durability, and erosion resistance of concrete structures. The interfacial properties of concrete are closely related to roughness, degree of bonding between coarse and fine aggregates and cement, degree of hydration, interfacial pores, aggregate morphology and distribution, etc. In order to control interfacial properties, chiseling and grinding are usually used before pouring the upper concrete. , flushing and other means to deal with the lower concrete. The traditional methods of chiseling and grinding are time-con...

AI Technical Summary

Problems solved by technology

In order to detect the roughness of concrete, scholars have proposed methods such as sand filling method, roughness meter method, fractal dimension method, needle contact method, and fine iron ball measurement method, but the above methods have complex operations, poor measurement accuracy, and low measurement efficiency. Cannot be applied to large-scale on-site flushing quality inspection Moderate disadvantages

Images