Method for detecting height of slurry surface inside grouting sleeve by using standard thickness weight

Abstract

The invention provides a method for detecting the height of the slurry surface inside a grouting sleeve by using a standard thickness weight, wherein the method uses a device for detection. The devicecomprises standard weights (1), a connecting line (2), and a weight tube (3). To be specific, the method comprises: connecting the connecting line (2) to one standard weight (1)fixedly and to other weights in series, arranging the connection part at the front end of the weight tube (3), and holding a connecting end or connecting the connecting end fixedly by a fixed support device and leading theweights out of a to-be-detected grouting sleeve though a slurry outlet hole till exceeding the slurry outlet hole of the sleeve by the weights, and indicating the unfilling height of the grouting sleeve according to the led weight thickness sum and a scale displayed by a last weight. The method is accurate and simple and is easy to operate.

Description

technical field [0001] The invention relates to the field of prefabricated buildings, and relates to a method for detecting the height of the grout surface in a grouting sleeve by using standard thickness weights. Background technique [0002] In prefabricated building structures, especially in prefabricated concrete structures, the connection of components is the key to ensure the integrity of the structure. [0003] key points of quality. Rebar sleeve grouting connection is a common form of steel bar connection in prefabricated concrete structures. Sleeve grouting connection is a concealed project. Whether the grouting in the grouting sleeve is qualified directly affects the quality and safety of the prefabricated concrete structure. However, during the construction process, due to unskilled personnel, improper operation or weak sense of responsibility, the phenomenon of grout leakage and run-out may occur from time to time. Causing fatal construction defects. [0004] ...

AI Technical Summary

Problems solved by technology

[0008] 1. The loss of injected water is not considered during the entire testing process, such as the absorption of water by the concrete in the grouting sleeve. The testing is not very accurate, resulting in large errors in the testing results

[0009] 2. When converting the grouting amount by the water injection amount, the influence of the shear groove on the inner wall of the grouting sleeve is not considered, and the detection is not very accurate, resulting in large errors in the detection results

[0010] 3. During the water injection process of this method, an industrial endoscope should be used to check the liquid height. When the liquid reaches the height of the bottom of the slurry hole, the water injection will be stopped. This operation requires very high requirements, and it is difficult to control it so well, resulting in detection There is a big error in the result

[0011] 4. This method requires the use of a guide ruler, but it is difficult to operate and control due to the narrow grouting hole of the grouting sleeve

[0012] At present, there is no standard weight method to detect the device and method of the grout surface height in the grouting sleeve in the prefabricated concrete structure, so it is of great significance to provide a simpler, effective and accurate standard weight detection method

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