A method and system for measuring and analyzing the properties of surrounding rock at the top of a tunnel

By generating contour maps from the physical properties of the surrounding rock strata at the top of the tunnel, the problem of ineffective detection of physical properties during tunnel construction is solved, providing reliable geological parameters and ensuring construction stability and safety.

CN115808725BActive Publication Date: 2026-06-16CHINESE PEOPLES LIBERATION ARMY KET FORCE ENG DESIGN INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINESE PEOPLES LIBERATION ARMY KET FORCE ENG DESIGN INST
Filing Date
2022-12-13
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

Existing technologies have failed to effectively detect the physical properties of the surrounding rock strata at the top of the tunnel, making it impossible to avoid adverse geological formations affecting the robustness and impact resistance of the engineering design.

⚗Method used

By acquiring the physical properties of the surrounding rock strata at the top of the tunnel, including seismic wave velocity, electromagnetic wave velocity, and resistivity, contour maps are generated. Based on the variation characteristics of these parameters, regions are divided to identify fracture zones, karst caves, intact bedrock, and potential slip zones.

🎯Benefits of technology

It enables effective detection of the surrounding rock strata at the top of the tunnel, provides reliable geological parameters, avoids the impact of adverse geological bodies on engineering design, and ensures the stability and safety of construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a tunnel top surrounding rock property measurement and analysis method and system, the method comprises the following steps: obtaining the physical property parameters of the surrounding rock stratum of the tunnel top detected at multiple different to-be-measured points; the physical property parameters comprise the seismic wave velocity, the electromagnetic wave velocity and the resistivity of the rock mass in the surrounding rock stratum; generating the first contour map of the seismic wave velocity, the second contour map of the electromagnetic wave velocity and the third contour map of the resistivity according to the physical property parameters of the surrounding rock stratum obtained at the multiple different to-be-measured points; analyzing the change characteristics of the physical property parameters in each contour map, and performing regional division on the surrounding rock stratum according to the analysis result to obtain the distribution characteristics of the surrounding rock stratum of the tunnel top. The application can effectively detect the physical properties of the surrounding rock stratum of the tunnel top, analyze the distribution characteristics of the surrounding rock stratum, and provide reliable geological parameters for the design of the tunnel construction and the civil air defense engineering.
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