Underground engineering surrounding rock quality real-time comprehensive evaluation method and system

By using digital drilling rigs to collect multi-source drilling parameters in real time, and combining them with BQ and RMR evaluation systems, the support parameters are dynamically adjusted. This solves the problems of lag and singularity in the evaluation of surrounding rock quality in tunnels and underground engineering, and realizes real-time and comprehensive evaluation of surrounding rock quality and accuracy and economy in support design.

CN122242038APending Publication Date: 2026-06-19CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGJIANG SURVEY PLANNING DESIGN & RES CO LTD
Filing Date
2026-03-31
Publication Date
2026-06-19

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Abstract

This invention discloses a real-time comprehensive evaluation method and system for the quality of surrounding rock in underground engineering. The method includes: using a digital drilling rig to drill holes in the in-situ rock mass to obtain first target drilling parameters; inputting these parameters into a preset drilling parameter processing model to obtain second target drilling parameters; inputting these parameters into a preset rock-breaking energy calculation model to obtain target rock-breaking energy; inputting these parameters into a preset rock strength inversion model and a preset rock mass integrity inversion model to obtain target rock strength and target rock mass integrity indices; inputting these parameters into a preset rock mass drilling-while-drilling classification model to obtain first and second target surrounding rock qualities; inputting the first and second target surrounding rock qualities into a preset surrounding rock quality evaluation model to obtain a third target surrounding rock quality; and inputting the third target surrounding rock quality into a preset surrounding rock support model to obtain target support parameters. This invention can be integrated with... BQ and RMR The dual standards enable precise and intelligent identification of surrounding rock quality and dynamic optimization of support parameters.
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