Finite Element Analysis of Rock Tunnel Response to Internal Blast Loading

A finite element analysis investigates the structural response of a rock tunnel to internal blast loads. The model, developed in Abaqus/CAE by Mohammad Zaid of Aligarh Muslim University, varies concrete liner thickness and overburden pressure to observe different conditions. Results highlight the importance of lining thickness and overburden depth for tunnel safety.

Use Cases

• Assessing tunnel safety under blast loads based on simulated overburden depth and lining thickness.
• Comparing structural failure modes in shallow versus deep tunnels using finite element analysis results.
• Validating material models for rock, concrete, and explosives in dynamic loading scenarios.
• Informing design parameters for transportation tunnels in rock based on simulated blast response.

Strengths

• Analysis uses established constitutive models (Mohr-Coulomb for rock, Concrete Damage Plasticity for lining, Jones-Wilkins-Lee for TNT).
• Study examines multiple design variables, including liner thickness and overburden pressure.
• The model employs a sophisticated Coupled-Eulerian-Lagrangian (CEL) approach for blast loading.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and data format are unknown, which may limit suitability assessment.

Provenance

Source

Aligarh Muslim University

Collection Method

Three-dimensional finite element modeling in Abaqus/CAE.