CONSTRUCTION TECHNOLOGY OF MUDDY WATER SHIELD THROUGH WATER-RICH STRUCTURAL CRUSHING ZONE IN SEA AREA
The shield passes through the seabed fracture zone,and there is a risk of water leakage under high water pressure conditions.In order to solve the technical problem of the fracture zone of water-rich structure under the sea area of the slurry shield tunneling,taking a subway project in Shenzhen as an example,through the analysis of engineering geology and hydrogeological conditions,the risks faced by the shield tunneling through the fracture zone under the sea area were introduced,and the configuration of the shield machine,including the selection of the shield machine,the configuration of the cutterhead and the cutter configuration,the shield tail brush and the hinged seal.technical measures for reinforcement of crushing zone;tool replacement.The technology and method of shield tunneling smoothly crossing the sea fracture zone are introduced in terms of technical measures for shield tunneling to cross the sea area,so as to provide reference for similar projects.
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