一种隧道施工风险评价方法及系统
By constructing a risk assessment method that integrates spatial orientation identification and time accumulation mechanisms in the construction of cross tunnels, the problem of lack of dynamic assessment throughout the entire process in existing technologies is solved, and high-precision identification and control of risks in the construction of cross tunnels is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY FIRST BUREAU GRP RAILWAY CONSTR CO LTD
- Filing Date
- 2026-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies lack dynamic assessment and risk transmission characterization of multiple factors such as intersection angle, geological conditions, construction disturbance and structural response throughout the entire process of cross tunnel construction, resulting in a reduced ability to accurately identify and continuously control asymmetric risks in cross tunnels.
A directional risk assessment method based on pre-construction multi-source parameter coupling directional bias modeling, in-construction disturbance response-driven dynamic correction mechanism, and post-construction risk accumulation and memory collaboration is adopted. By acquiring intersection angle, tunnel face geological data, and pipe roof drilling deviation angle, the geological smoothness index is calculated and the directional bias coefficient is generated. Dynamic correction is performed by combining arch waist displacement difference and mechanical disturbance energy, the disturbance propagation trend is analyzed, and after excavation is completed, the shotcrete rebound data and track displacement data are evaluated to construct the rebound risk status and risk accumulation mechanism.
It improves the accuracy of identifying asymmetric risks and the ability to control them throughout the entire process during the construction of cross tunnels, and enables effective management of the directionality of risk propagation and the accumulation of time.
Smart Images
Figure CN122155438B_ABST