68 How the World’s Deepest Immersed Tube Tunnel Was Built скачать в хорошем качестве

68 How the World’s Deepest Immersed Tube Tunnel Was Built

Discover how the immersed tube tunnel of the Hong Kong–Zhuhai–Macao Bridge (HZMB) was engineered beneath 40 meters of seabed in the Lingdingyang channel. This documentary takes you inside the offshore mega subsea construction process that transformed a three-hour journey into just 45 minutes. From the land-based prefabrication yard casting 33 giant concrete segments to the precision-controlled installation on a deep-sea gravel foundation, every stage reveals an advanced manufacturing process built for a 120-year lifespan. You’ll see how 386,000 cubic meters of C45 marine concrete and 400,000 tons of steel were integrated through a highly controlled manufacturing process, reinforced to withstand typhoons, earthquakes, and extreme hydraulic pressure. The video breaks down the underwater alignment, gasket compression, and sealing systems that define this record-breaking manufacturing process. With real-time Structural Health Monitoring and intelligent ventilation systems, the tunnel represents the future of infrastructure manufacturing process innovation. Watch as the world’s longest road immersed tube tunnel comes to life through one of the most complex offshore engineering achievements ever completed. 00:00 Channel Introduction 00:16 The Impossible Challenge Beneath the Lingdingyang Channel 01:45 Building 33 Giant Segments on Land – The Precision Manufacturing Process 03:20 Preparing the 40-Meter-Deep Seabed and Artificial Islands 05:05 The 80,000-Ton Descent and Deep-Sea Docking Operation 07:05 Smart Monitoring Systems and the One-Hour Living Circle Vision #factoryprocess #manufacturingprocess #productionprocess #HowItsMade #HowTo #Hong Kong-Zhuhai-Macau Bridge #LakePontchartrainCauseway #LakePontchartrain #ChesapeakeBayBridge #BridgeTunnelManufacturingProcess #ChessieTunnelBoringMachine #Construction #ChannelTunnel #TunnelConstruction #ImmersedTubeTunnelConstruction #SubseaTunnelEngineering #OffshoreMegaConstructionProcess #ProductionProcessFlow #factoryprocess #productionprocess #productionline