Rising and falling weir of flexible membrane
    12.
    发明授权
    Rising and falling weir of flexible membrane 失效
    柔性膜的上升和下降堰

    公开(公告)号:US4661015A

    公开(公告)日:1987-04-28

    申请号:US707373

    申请日:1985-03-01

    IPC分类号: E02B7/20 E02B7/00 E02B7/02

    CPC分类号: E02B7/005

    摘要: A flexible membrane-type rising and falling weir is anchored at the curved crest of a concrete structure in a body of water. A drain discharge pipe has an opening positioned at the lowest portion of the interior of the envelope to provide complete discharge of water accumulated so that the weir deflates completely to permit smooth flow of water over it.

    摘要翻译: 柔性膜式上升和下降的堰锚固在水体中的混凝土结构的弯曲顶部。 泄水排放管具有位于外壳内部最下部的开口,以提供积聚的水的完全排出,使得堰完全放气以允许水平滑地流过其上。

    Collapsable dam
    13.
    发明授权
    Collapsable dam 失效
    可折叠大坝

    公开(公告)号:US4279540A

    公开(公告)日:1981-07-21

    申请号:US10773

    申请日:1979-02-09

    IPC分类号: E02B7/00 E02B7/04

    CPC分类号: E02B7/005

    摘要: A deformable dam made of an impermeable flexible membrane secured in a water tight manner to the bottom and side walls of a river. The flexible membrane is inflatable using either air or water, or a combination to vary the overall effective length of the dam.

    摘要翻译: 由不透水柔性膜制成的可变形坝,以水密方式固定在河流的底部和侧壁上。 柔性膜可以使用空气或水,或组合来充气以改变坝的整体有效长度。