Grouting sleeve with double inspection holes and application method

Abstract

The invention discloses a grouting sleeve with double inspection holes and an application method, and relates to the technical field of grouting detection. A second inspection hole is formed between agrout outlet and a grouting hole of the grouting sleeve, the grout outlet is used as a first inspection hole, and the grout outlet and the grouting hole are closed by blocking self-locking pieces. The second inspection hole is detachably closed through rigid blocking pieces, the blocking self-locking pieces comprise self-locking heads and connecting parts, the self-locking heads are connected with the grouting sleeve through the connecting parts, the self-locking heads comprise locking plates and elastic stretch rings, and the elastic stretch rings control the opening and closing of the self-locking heads by limiting the opening and closing of the locking plates. The grouting sleeve with the double inspection holes can effectively detect top defects, middle defects and horizontal defectscan be effectively detected, and a detection method is accurate, simple and fast; and the double inspection holes can further be used for repairing the slurry replenishing quality of the sleeves withthe grouting defects, and the grouting quality is ensured.

Description

technical field [0001] The invention discloses a grouting sleeve and an application method, and relates to the technical field of grouting detection, in particular to a grouting sleeve with double inspection holes and an application method. Background technique [0002] In the prefabricated building structure, the connection technology of prefabricated concrete components directly affects the safety of prefabricated concrete structures. At present, grouting sleeves are usually used to solve the connection problem of prefabricated concrete components. After the grouting sleeve is grouted, it needs Check the saturation of grouting to avoid void defects in various parts of the sleeve caused by insufficient grouting saturation inside the sleeve after grouting, which will affect the bonding and anchoring effect between the steel bar and the grouting material. [0003] The existing grouting sleeve includes a grouting hole and a grouting hole. If the embedded steel wire drawing met...

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Problems solved by technology

[0003] The existing grouting sleeve includes a grouting hole and a grouting hole. If the embedded steel wire drawing method is used to detect the grouting saturation, the high-strength steel wire is embedded in the grouting hole, and the steel wire is pulled after the slurry has solidified to a certain strength. According to the pulling force, it can be judged whether the internal grouting is full, but due to the interference of human factors or factors affecting the solidification of the grout, it is impossible to accurately judge whether there is a void defect in the middle of the sleeve, or other grout leakage defects, which will easily lead to errors in the test results However, using the embedded sensor method to detect the grouting saturation also faces the same problem, that is, it can only detect the embedded position, which is not good for the sleeve detection without embedded sensors, and the ultrasonic detection method is currently the most commonly used concrete Defect non-destructive testing technology adopts the method of counter-measurement, and uses the relative changes of acoustic parameters such as sound time (or sound velocity), amplitude and frequency of ultrasonic pulse waves propagating in concrete to analyze and judge the defect situation, but it is still affected by the moisture content of concrete and iron sheet. The interference of factors such as bellows and steel bars cannot guarantee that the saturation of the complete grouting sleeve section is consistent

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