Large-section grouting three-dimensional visual optimization method

By using copper needle electrodes and finite element modeling technology during large-section grouting process, monitoring and inversion of grouting three-dimensional images is solved, and the problems of inaccurate grouting monitoring and high cost in the existing technology are achieved, and large-section grouting is achieved Efficient and accurate monitoring of the slurry process.

CN119167678APending Publication Date: 2024-12-20CHINA ENENG GRP THIRD ENG BUREAU CO LTD
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Patent Information

Application Number
CN202411174393.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2024-12-20

AI Technical Summary

Technical Problem

The prior art cannot accurately monitor the diffusion of large-section grouting slurry during the actual grouting process, and it is costly and cannot be applied to complex geological environments. The numerical simulation parameters are single, which cannot reflect the complexity of the grouting process.

Method used

The copper needle electrode is arranged in the area to be tested. By excitating current and collecting secondary current fields, the resistivity and polarization parameters are extracted, and finite element three-dimensional modeling and three-dimensional inversion imaging technology are used to generate grouted three-dimensional visual image.

Benefits of technology

It realizes accurate and reliable monitoring of the grouting process in large sections, ensures the accuracy and continuity of imaging, reduces costs, and is suitable for complex geological environments.

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Abstract

The invention discloses a large-section grouting three-dimensional visual optimization method, which comprises the following steps of: arranging a measuring line net on the section of a window-type cave depot according to a large-section excavation sequence of a region to be measured; a plurality of copper needle electrodes are arranged on the wire measuring net; the copper needle electrode is arranged in a grouting hole of an area to be detected; before grouting of the grouting holes, excitation current is excited by an excitation power supply connected with the measuring line net, and a secondary current field is acquired; extracting a resistivity parameter and a polarizability parameter; calculating the potential of any node of the large section by using the resistivity parameter and the polarizability parameter and adopting finite element three-dimensional modeling; and adopting resistivity three-dimensional inversion imaging or polarizability three-dimensional inversion imaging to obtain a grouting three-dimensional visualization image corresponding to the large section of the to-be-detected area. Through the scheme, the method has the advantages of being simple in logic, accurate, reliable and the like, and has very high practical value and popularization value in the technical field of grouting monitoring in the civil engineering field.
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Citation Information

Cited By

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