Securing Tunnels—Navigating the Interplay of Blast Loads and Seismic Effects in Global Infrastructure
摘要
Tunneling systems play a vital role in today’s global infrastructure. Consequently, ensuring the safety of tunnels from both intentional and accidental blasting incidents has become crucial. Throughout their service life, tunnels may face explosive forces from terrorist bombings, construction-related engineering blasts, and accidental explosions involving transported flammable materials. These intense loading scenarios have the potential to cause not only devastating damage to tunnel structures, significant casualties, and economic losses but also immeasurable social impacts. Over the past few decades, a comprehensive review has identified several critical parameters influencing the performance of underground tunnels against blast loading. Although tunnels have historically been considered less susceptible to earthquake-induced damage when compared to buildings and aboveground civil infrastructure, there have been documented cases of significant damage and even collapse in the past. The effects of earthquakes on tunnels are typically categorized as ground failure and ground shaking. In the present study, the objective is to establish a correlation between blast loads and seismic effects in tunnels. This involves a detailed exploration of how explosive forces, whether intentional or accidental, interact with and influence the seismic behavior of tunnels. The study aims to understand the intricate dynamics between blast loads and seismic waves, analyzing their impact on structural integrity, potential damages, and overall resilience.