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    GEIW | Global Engineering Insight Webinar Rethinking Tunnel Design from a Hydraulic Perspective​

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    AI Summary

    Tunnel construction is often described as a constant challenge with groundwater. Yet, traditional design has mainly focused on geotechnical factors and has not fully addressed the groundwater conditions that determine long-term performance and durability.

     

    This session presents a new way of viewing tunnels as integrated Hydro-Geo-Structure systems rather than simple underground spaces. It introduces an advanced design framework, supported by AI and digital twin–based maintenance strategies for the full life cycle of the structure.

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    Description

    As tunnel projects grow in scale and complexity, conventional hydraulic design assumptions are struggling to keep up. The long-standing choice between drained and undrained conditions oversimplifies real ground behavior.

     

    This session reframes the problem: hydraulic behavior in tunnels cannot be captured by a single assumption, and can be interpreted through the lens of P and Q. H-CCM is the practical outcome of this rethinking, working backward from allowable performance criteria to establish a rational basis for grouting design.

     

    Across five sections, from why groundwater matters in the first place, through current practice limitations, to a reinterpretation of tunnel hydraulics and a look at future challenges, this webinar gives engineers the conceptual shift and calculation tools needed to handle what conventional methods leave unresolved.

     

    Key Points

    Internal Water Pressure & Leakage Verification Understand stress state analysis and cracking risk evaluation methods when excessive internal water pressure acts on the tunnel.

    Soil-Structure Interaction (SSI)Analyze 3D ground behavior by linking the heterogeneity of the surrounding ground with the behavior of the concrete lining.

    Watertightness AssuranceLearn practical design criteria for controlling stress concentration and deformation in lining structures.

    Analysis EfficiencyDiscover methodologies for resolving computational bottlenecks in large-scale nonlinear analysis.

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    Speaker

    Jong-Ho Shin Professor Konkuk University, Seoul, South Korea
    An expert in underground structures with extensive professional experience at Daewoo Engineering, the Seoul Metropolitan Government, and the Office of the President. His research focuses on the coupled hydro-mechanical behavior of tunnels and the advancement of modern engineering design standards. 
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