摘要
盾构穿越海底破碎带,在海水高水压条件下,可能会发生渗漏水的风险。为解决泥水盾构穿越海域下富水构造破碎带的技术难题,以深圳某地铁工程为例,通过分析工程地质和水文地质条件,介绍盾构下穿海域破碎带会面临的风险,并从盾构机配置,包括盾构机选型、刀盘及刀具配置、盾尾刷及铰接密封;破碎带加固技术措施;刀具更换;盾构下穿海域技术措施等方面介绍盾构顺利穿越海域破碎带的技术和方法,为类似工程提供借鉴。
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.
出处
《建筑技术开发》
2024年第4期42-44,共3页
Building Technology Development
关键词
泥水盾构
破碎带
注浆加固
muddy shield
crushing belt
grouting reinforcement
