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    • 2. 发明申请
    • IMPROVEMENTS TO FIXED PARTIALLY IMMERSED CAISSON DIKES
    • 修改部分固定的CAISSON DIKES的改进
    • WO1998029610A1
    • 1998-07-09
    • PCT/FR1997002471
    • 1997-12-31
    • BOUYGUES OFFSHOREROGER, PierreCOLMARD, Christophe
    • BOUYGUES OFFSHORE
    • E02B03/06
    • E02B3/06
    • The invention concerns a fixed caisson type dike (1) partially immersed between an upstream sheet of water (3) and a downstream sheet of water (4) such that water flows beneath the dike. The downstream front part (AB) of the dike which is likely to be affected by the movement of water under the effect of the surge, essentially slopes downstream at an angle ( alpha ) at most equal to 60 DEG and at least equal to 25 DEG with respect to the horizontal line. Said dike is further improved by an upstream front profile (10) specially designed for increasing the effect produced by the downstream front profile and by the addition of a central chamber (11) greatly decreasing the vertical stresses. Said dike amplifies the phenomenon of damping during periods of high surge (T > 8 seconds) and limits the risks of resonance downstream generated by the interaction of the construction with the site to be protected.
    • 本发明涉及部分浸没在上游的水(3)和下游的水(4)之间的固定的沉箱式堤坝(1),使得水在堤坝之下流动。 堤坝的下游前部(AB)可能受到冲击作用下的水的运动的影响,基本上以最大等于60°并且至少等于25°的角度(α)向下游倾斜 相对于水平线。 通过专门设计用于增加由下游前轮廓产生的效果并且通过添加大大减小垂直应力的中心腔(11)的上游前轮廓(10)进一步改善所述堤防。 所述堤坝在高浪涌(T> 8秒)期间放大阻尼现象,并且限制由施工与要保护的地点的相互作用产生的共振下游的风险。