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About video :- How controlled Tunnel blasting is done? #engineering • This video is intended for educational purposes only and demonstrates controlled blasting techniques used in tunnel construction. • The first scene shown in this video shows how amateur performs tunnel blasting and what are its consequences. second and third scene shows what happens inside tunnel during blasting and how experts performs tunnel blasting procedure. • The content is part of an educational series designed to explain the science and engineering behind tunnel excavation, including the safety measures and protocols involved. All activities shown in this video were conducted by trained professionals in a controlled environment, following strict safety guidelines and regulations. Viewers are advised not to attempt any of the actions depicted. The purpose of this video is to promote scientific understanding and awareness of engineering practices, not to encourage or endorse dangerous or illegal activities. • This kind of description clarifies that the video is for educational purposes and includes disclaimers about safety and professional conduct, helping to align with YouTube's community guidelines. • Understanding Multiple Shockwaves in Tunnel Blasting • Initial Shockwave Formation: When an explosive charge detonates, it generates a primary shockwave that propagates outward from the explosion center. In a tunnel, this wave initially travels spherically but quickly interacts with the tunnel walls due to the confined space. • Reflection and Interaction: The confined geometry of a tunnel causes the shockwave to reflect off the walls, ceiling, and floor. These reflections can lead to multiple peaks in pressure as the waves bounce back and forth within the tunnel. This interaction results in complex waveforms characterized by oscillations and varying pressure levels at different locations along the tunnel. • Transition from Spherical to Plane Waves: As the initial spherical shockwave reaches a certain distance from the explosion source, it begins to transition into a plane wave due to the confinement of the tunnel. This transition occurs when the shockwave has travelled approximately six times the equivalent diameter of the tunnel, leading to a more uniform distribution of pressure along the tunnel length1. • Overpressure Peaks: The repeated reflections and interactions between shockwaves can create multiple overpressure peaks at various points within the tunnel. For instance, significant increases in overpressure values have been observed at specific locations such as vaults and side walls due to these reflections • JUST CLICK TO SUBSCRIBE:- https://bit.ly/3rfMixe • My Mic - https://amzn.to/45Uj3SO • My Camera - https://amzn.to/4eWA3vO • My collar Mic - https://amzn.to/3zA2O1p • My Headphones - https://amzn.to/3VYmrYm • My Mic Stand - https://amzn.to/3LeJ3Pn • My Light setup - https://amzn.to/3Lduhbw • https://amzn.to/3xMjWjY, https://amzn.to/3Wgh5t3, https://amzn.to/4ctnNBq • Join this channel to get access to perks: • / @vigyanrecharge • Our official Instagram - / vigyanrecharge • https://www.facebook.com/profile.php?... • Our Official Facebook page - https://www.facebook.com/profile.php?... • https://whatsapp.com/channel/0029VaCo... • ==================================================================== • Important links - • Information credit :- Google • Image credit :- free stock images, gifs etc. • Music credit :- leonell-cassio-a-magical-journey-through-space • Background video :- free stock videos, Licensed content • ==================================================================== • Video hashtags:- #vigyanrecharge #science #engineering #vigyan #physics #shorts #videos #video • 🇮🇳 जय हिन्द, जय भारत। 🇮🇳 • Like + share + comment! • ============================================================ • Channel tags:- • #vigyanrecharge • ============================================================ • Copyright Disclaimer • Disclaimer- Some contents are used for educational purpose under fair use. Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for fair use for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favour of fair use. • Thank You
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