Tunnel surrounding rock pressure arch calculation system

By using multi-source data fusion and deep learning technology, the accurate calculation and adaptive optimization of the pressure arch parameters of the tunnel surrounding rock were achieved, solving the problems of surrounding rock type identification and calculation result deviation in traditional methods and improving the safety of tunnel construction.

CN121834684AInactive Publication Date: 2026-04-10徐超
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Patent Information

Application Number
CN202512010940.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-29
Publication Date
2026-04-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing methods for calculating the pressure arch of tunnel surrounding rock fail to fully consider the time-varying characteristics of stress release in the surrounding rock during tunnel excavation, fail to comprehensively utilize multi-source data, have insufficient accuracy in identifying surrounding rock types, and lack in-depth correlation analysis and closed-loop feedback mechanisms. This results in large deviations between the calculation results and actual working conditions, making it difficult to adapt to complex geological conditions.

Method used

By employing a multi-source data fusion acquisition module, a surrounding rock grade intelligent identification module, an adaptive pressure arch parameter calculation module, and a dynamic load prediction and optimization module, and through deep learning and spatiotemporal collaborative prediction, the accurate calculation and closed-loop optimization of the tunnel surrounding rock pressure arch parameters are achieved.

Benefits of technology

It improves the accuracy of surrounding rock type identification and the calculation precision of pressure arch parameters, reduces prediction errors, enhances the system's adaptability, and meets the precision requirements of engineering design.

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Abstract

The invention, which belongs to the technical field of tunnel engineering, discloses a tunnel surrounding rock pressure arch calculation system comprising a multi-source data fusion acquisition module, a surrounding rock grade intelligent identification module, a self-adaptive pressure arch parameter calculation module and a dynamic load prediction and optimization module. The multi-source data fusion acquisition module acquires geological parameters, drilling monitoring data and case data and generates fusion feature vectors; the surrounding rock grade intelligent identification module outputs a surrounding rock classification result based on a deep residual network and an attention mechanism; the self-adaptive pressure arch parameter calculation module calculates pressure arch parameters by adopting an improved Prscherski theory and a stress release time-varying function; the dynamic load prediction and optimization module predicts the load through the space-time collaborative network and feeds the deviation back to the calculation module to form closed-loop optimization, precise dynamic calculation of the surrounding rock pressure arch parameters is achieved, and the calculation precision is improved by 20% or above compared with a traditional method.
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