Capsule expansion detection device and detection method used in capsule expansion anchor

Abstract

The invention discloses a capsule expanded body detection device used for a capsule type expanded body anchor rod. The capsule expanded body detection device comprises a measuring lead wire, two lead wire fixing ends and two signal transmission lead wires, wherein the two lead wire fixing ends are fixed on inner walls of the two ends of a certain expanded wire with the maximum diameter of a capsule body of the capsule type expanded body anchor rod; the two ends of the measuring lead wire are fixed on the two lead wire fixing ends respectively; the length of the measuring lead wire is equal to the designed length of an expanded head of the capsule type expanded body anchor rod and is smaller than the maximal diameter length of the expanded capsule body; the two signal transmission lead wires are connected with the two ends of the measuring lead wire at the two lead wire fixing ends respectively and extend to the ground; when the capsule body is expanded until the measuring lead wire is completely straightened and the capsule body is continuously expanded, the two ends of the measuring lead wire are easy to snap. The invention further discloses a capsule expanded body detection method used for the capsule type expanded body anchor rod. The capsule expanded body detection device and method have the beneficial effects that whether the capsule body is expanded or not can be judged and whether the expanding size reaches the design specification or not is judged.

Description

technical field [0001] The invention relates to a capsule expansion detection device and a detection method used in capsule expansion bolts, and is mainly applied to the detection technology of such bolts used in underground engineering, mining engineering, foundation pit and slope engineering, etc. field. Background technique [0002] The anchorage section of the capsule-type expansion bolt is uniformly extruded and expanded outwards through pressure grouting, which increases the pressure around the anchorage section of the expansion head and produces a swelling effect on the surrounding soil. The internal friction angle and compression modulus of the soil increase, and the anchor and The contact area of ​​the soil also increases, which increases the "biting force" between the anchor rod and the soil. Grouting is the process of bolt forming. The grouting is divided into two steps. After the anchor is placed, first inject high-pressure cement slurry into the bag, and the g...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a capsule expansion detection device and detection method used in the capsule expansion anchor, which can judge whether the capsule is opened and whether the expansion size reaches the design specification, and develop a A bolt capsule detection device is used to solve the problems of difficulty in controlling the grouting amount of such bolts and interference from human factors, and can check in real time whether the installation of the bolt meets the design requirements during the pouring process

Images