Method of Analyzing Expansion Mechanism of Anchor Body with Different Contents of Expansion Agent Using CT Scanning

Abstract

The invention provides a method used for analyzing expansion mechanisms of anchoring bodies of different expanding agent contents through CT scanning. According to the method, high strength carbon fiber cloth coated PVC pipes are used for providing constraining force so as to prevent broken of PVC pipes because of anchoring body expansion, and simulating crustal stress constraint conditions. Glassfiber anchor poles are used for replacing metal anchor poles, in other words, nonmetal members are used for replacing metal members, so that problems that ghosting of metal in CT scanning is caused,and relative large influences on the internal CT values of anchoring systems are caused are solved; at the same time, a positioning part is adopted for accurate positioning scanning, the compactness degree value of expansion cement slurry in the anchoring systems of different expanding agent contents under the effect of crustal stress and underground water can be factually reflected by the CT value difference of different positions and the change rules with time passing, the expansion mechanisms of the anchoring bodies of different expanding agent contents are obtained at last, and reference and research application value are provided for practical engineering slope support protection.

Description

technical field [0001] The invention relates to the field of expansion mechanism of anchors, in particular to a method for analyzing the expansion mechanism of anchors with different contents of expansion agents by using CT scanning. Background technique [0002] CT scanning technology is a non-destructive detection technology, which has been widely researched and applied because of its convenience, high safety, and intuitive results. CT scanning can dynamically and quantitatively measure the changes in the internal structure of materials during the process of stress, and the resulting image can directly reflect the defects and damage inside the object, and can perform quantitative analysis on defects and damage. The working principle of CT scanning technology is to use X-rays to scan a section of the object to be inspected from multiple directions in a non-destructive state, and use a special detector to collect the information after the radiation attenuation of the object ...

AI Technical Summary

Problems solved by technology

Using glass fiber anchors instead of metal anchors, that is, replacing metal components with non-metallic components, solves the problem that the presence of metal in CT scans will produce ghosts, which will have a greater impact on the CT value inside the anchoring system.

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