Stress-Induced Failure Mechanisms of a Shallow, Large-Span Cavern: Insights from Field Observations and Numerical Back analysis

Key Points

• Stress-induced failure mechanisms were observed in the large-span cavern, revealing vulnerabilities.
• Key observations from field studies indicated significant stress concentrations leading to structural integrity issues.
• Numerical back analysis was employed to examine the stability of the cavern, linking stress factors with observed failures.
• Understanding these mechanisms may improve future design strategies for cavern stability, potentially enhancing safety.