Cast-in-place concrete floor thickness detection method and structure

Abstract

The invention provides a cast-in-place concrete floor thickness detection method which comprises the following steps: determining a detection point, and arranging a detection grid near the detection point; arranging a transmitting probe below one detection point; carrying out mobile scanning on the receiving probe according to the detection grids corresponding to the detection points until the position of the minimum value is found; repeating at the next detection point until all the detection points are detected. The invention further provides a cast-in-place concrete floor thickness detection structure; the selected detection points are determined according to specification requirements, and the detection effectiveness is obviously improved. According to the invention, the detection point grids are arranged, so that the operation orderliness and convenience are improved, the effect of experience in traditional detection can be effectively reduced, and the operability is obviously enhanced. The detection points are arranged normatively, the detection pertinence is high, and the detection precision is high.

Description

technical field [0001] The invention relates to a technology for detecting the thickness of cast-in-situ concrete floor slabs. Background technique [0002] Floor thickness plays a very important role in the safety of engineering structures, and floor thickness inspection is one of the must-check items in engineering quality inspection. Common methods for detecting cast-in-place slabs include: steel tape detection method, level instrument detection method, and electromagnetic principle detection method. The electromagnetic principle detection method is based on electromagnetic wave kinematics, dynamics and modern electronic technology. The floor thickness detector is mainly composed of signal sending, receiving, signal processing, signal indication and other units. It is a simple, convenient and accurate detection method. The error of this method is ±2mm, which is less than the ruler mentioned in the specification. The error of measurement, applied to the acceptance inspec...

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Problems solved by technology

According to the above-mentioned traditional method, there will be the following two problems: (1) Since point-to-point detection cannot be carried out on the upper and lower floors, the detection points according to the requirements of the specifications cannot be detected, not necessarily the shortest distance, so that the floor cannot be evaluated

(2) In the above method, the detection point is not the point required by the specification. The main reason is that the position where the electromagnetic signal is emitted by the transmitting probe is not necessarily the position of the measurement point required by the specification. Even if the detection point is set near the standard detection point, it cannot be guaranteed The position where the transmitting probe emits the electromagnetic signal is exactly the position of the measuring point

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