In China, the construction of an undersea tunnel is a complex and technology-intensive process that involves multiple stages and technological innovations. Here are China.
Issued a detailed introduction to the construction of the dragon card to share millions of cash:
Exploration phaseThis phase includes geological surveys and environmental assessments to determine the optimal path and design parameters for the tunnel.
Design phaseEngineers design a tunnel structure based on exploration data to ensure it can withstand seawater pressure and geological conditions.
Construction phase: The construction usually adopts the shield method, immersed pipe method or drilling and blasting method. The shield method uses a shield machine to excavate the tunnel, the immersed tube method is to sink the prefabricated tunnel section to the seabed, and the drill and blast method is used in the geological conditions where the rock is hard.
Geological conditions of the seabedDifferent geological conditions, such as soft soil layer, pebble layer and composite stratum, have a great influence on the choice of construction method.
Sea pressure: High water pressure environments require that the tunnel design must be able to withstand extreme pressures to prevent water infiltration.
Shield method innovation: China has achieved a number of technological breakthroughs in the construction of shield tunnels, such as limited discharge and step-down tool change technology and shield docking technology.
Innovation of immersed tube methodIn the Hong Kong-Zhuhai-Macao Bridge project, China independently developed immersed tunnel technology, and successfully solved world-class technical problems such as the design and construction of deep-buried immersed tunnels.
Xiamen Xiang'an TunnelThis is an undersea tunnel constructed by drilling and blasting method, and its construction process adopts advanced geological prediction and grouting reinforcement technology, which overcomes a number of engineering problems.
Hong Kong-Zhuhai-Macao BridgeThe bridge is designed in conjunction with the undersea tunnel and demonstrates China's technological innovation and achievements in the construction of the undersea tunnel.