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The study examines how deep-buried shield tunnels interact with surrounding soil over time, focusing on deformation and leakage effects.

April 12, 2026Applied SciencesOpen Access

Long-Term Interactive Response and Mechanisms Between Deep-Buried Shield Tunnels and the Surrounding Strata

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This research quantifies ground responses and tunnel leakage effects in deep-buried urban tunnels, highlighting engineering considerations.

The study examines how deep-buried shield tunnels interact with surrounding soil over time, focusing on deformation and leakage effects.
Analyzed a case study from the Beijing Eastern Sixth Ring Road renovation project
Employed a fully coupled fluid–solid numerical approach for simulations
Characterized settlement mechanisms based on tunnel leakage and soil properties
Ground deformation is mainly influenced by tunnel leakage intensity
Minimal settlement observed with waterproofing grades I or II
Significant consolidation settlement occurs at waterproofing grade IV or lower
Increased permeability and depth lead to greater disturbance zones and settlements
Soil permeability affects the timing of ground response to tunnel leakage.

Jin et al. (2026) studied this question.

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This research quantifies ground responses and tunnel leakage effects in deep-buried urban tunnels, highlighting engineering considerations.