Ground hollow detection and repair method based on infrared imaging

Abstract

The invention discloses a ground hollow detection and repair method based on infrared imaging. The method comprises the following concrete steps of: a, hollow detection: determining the approximate position of a hollow by knocking at the hollow through a rubber hammer, using an infrared thermal imaging instrument in an auxiliary way on the basis for detecting the ground hollow, and making marks; b, hole forming: forming holes in marked hollow positions and crack positions; c, slurry seat arrangement and crack sealing by plaster; d, grouting: starting pressure grouting after the plaster is solidified, wherein materials used for grouting are high-permeability epoxy grouting materials; e, grouting effect detection: using a method of combining the rubber hammer knocking and the infrared imaging detection to determine the grouting effect after the grouting materials are hardened, performing drilling grouting again according to the sequence for unqualified places; f, slurry seat clearing; and g, grinding and color trimming. By adopting the mode, the method has the advantages that the steps are simple and reasonable; a good repair effect is achieved on the ground hollow; and the usability and the functionality of the ground of a building structure are ensured.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a method for detecting and repairing ground hollows based on infrared imaging. Background technique [0002] The ground is an important part of the indoor and outdoor space in the building. People directly engage in various activities on the ground, place various furniture and equipment, and complete the use function of the building; the ground must withstand various friction, erosion and impact, so the ground is required It has sufficient strength and meets the requirements of moisture-proof, fire-proof, and corrosion-resistant. It also has certain sound insulation and sound-absorbing functions, elasticity, dust-proof, heat preservation, and flame-retardant properties in rooms that require special requirements. [0003] Hollows and cracks often appear on the ground surface due to various reasons, which are not only unsightly, but also have a certain impact on it...

AI Technical Summary

Problems solved by technology

[0005] The hollowing phenomenon will reduce the service life of the ground and also interfere with the normal use of the building structure

The hollowing phenomenon is often accompanied by the appearance of cracks, which will shorten the service life of the ground and affect the visual effect. The dust flying out of the cracks under vibration will pollute the use environment, especially for factories or laboratories that require a dust-free environment. ;As the cracks extend, liquid and dust continue to enter, the hollow area will expand and aggravate, the surface layer will gradually loosen, become fragments and fall off, and eventually lead to failure of normal use

[0006] At present, there are two main methods of repairing ground hollows: one is to chisel out ground cracks, hollows and other damaged parts, and then perform large-scale repairs on the chiseled areas. This method requires a large amount of work and the effect is not good The other is to use the grouting method to repair the ground hollow drum. There are many technical defects in the existing grouting method for repairing the ground hollow drum. The grouting workload is heavy and it is easy to miss. On the other hand, the grouting effect cannot be detected accurately after the grouting is completed, including the missing area without grouting and the inability to accurately judge the fullness of the grouted liquid in the empty drum.