Abstract
China is actively building urban utility tunnels and incorporating gas pipes into the tunnels. However, there is a certain risk of leakage and explosion when gas enters the tunnels. If the gas pipe leaks and causes an explosion, this will not only seriously damage the integrated tunnel structure and other pipelines, but also lead to a catastrophic impact on the surrounding buildings. It is therefore necessary to study the safety of urban utility tunnels under gas blast loadings. In the present work, based on a completed gas explosion model, we investigated the blast loading characteristics of a typical utility tunnel to achieve the shock wave propagation law and distributions of the explosion. We also analyzed the effects of gas concentration, pressure relief vent, and gas volume on the shock wave load. By dimensional theoretical analysis, we established a formula for calculating the overpressure peak and impulse for such utility tunnels. The research can therefore provide loading information for the safety assessment and further improve the antiexplosion safety performance of utility tunnels.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
