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公开(公告)号:US4118938A
公开(公告)日:1978-10-10
申请号:US738419
申请日:1976-11-03
CPC分类号: E21D9/0607
摘要: Apparatus for use in tunnel driving employs a drive shield of known type with elongate drive members arranged side-by-side and supported and guided by a rigid frame. Hydraulic rams are used to alternately advance individual members or groups of members and the frame. Fluid concrete is introduced behind the shield to form a permanent lining supported by formwork and sealed to the tunnel wall by sheet material. The fluid concrete is contacted during its setting period by a hollow ring member of the formwork. The ring member is provided with a filter structure permitting water to be withdrawn by suction. Further separate hydraulic rams interconnect the ring member and the frame of the drive shield enabling the fluid concrete to be compressed. Some of the drive members have prolonged thin rear extensions which form tails extending partly around the concreting zone in contact with the tunnel wall. Pipes are provided to introduce further concrete or other filling material into the gaps created when these tails are shifted up.
摘要翻译: 用于隧道行驶的装置采用已知类型的驱动罩,其细长的驱动构件并排布置并由刚性框架支撑和引导。 液压柱塞用于交替地推进各个构件或构件的构件和框架。 流体混凝土被引入盾构后面,形成一个由模板支撑的永久性衬里,并通过板材密封到隧道壁。 流体混凝土在其设置期间通过模板的中空环构件接触。 环形构件设置有允许通过抽吸抽出水的过滤器结构。 进一步的单独的液压柱塞将环形构件和驱动罩的框架相互连接,使得能够压缩流体混凝土。 一些驱动构件具有延长的薄的后延伸部,其形成部分地围绕与隧道壁接触的混凝土区域延伸的尾部。 提供管道以将更多的混凝土或其他填充材料引入到当这些尾部向上移动时产生的间隙中。