三台阶工法施工隧道围岩稳定性演化的监测与分析方法
By deploying monitoring boreholes and installing sensors in the three-stage tunnel construction method, collecting data and plotting relationship curves, the entire process of monitoring the stability of the surrounding rock in the tunnel was solved, enabling precise classification and scientific decision-making regarding the stability of the surrounding rock.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
- Filing Date
- 2023-11-28
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies make it difficult to achieve full-process and full-area surrounding rock stability monitoring in tunnels constructed using the three-stage method, resulting in a lack of scientific decision support for support design.
Monitoring boreholes were installed in the surrounding rock of tunnels constructed using the three-stage method, and stress and strain sensors were installed to collect data and plot stress-time and strain-time relationship curves. The stress and fracture zone index values of the surrounding rock were determined, and the stability state of the surrounding rock was classified.
It enables accurate control of the surrounding rock stability throughout the entire process of tunnel excavation and support, provides a scientific basis for support design, and improves the accuracy of long-term assessment and monitoring of tunnel stability.
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Figure CN117365657B_ABST