E - Fixed Constructions – 02 – B
Patent
E - Fixed Constructions
02
B
E02B 3/04 (2006.01) E02B 17/00 (2006.01) F15D 1/12 (2006.01)
Patent
CA 2630957
The invention relates to a covering element (20, 21) having an artificial roughness that has been specially designed (18, 19) to be applied to structures and objects (10) which are submerged in a flow (12) and which are supported by a soil that is liable to scour, such as bridge piers and piles, tubing and other elements.The aforementioned roughness reduces the intensity of the secondary flow at the leading edge of the structures and the intensity of the wake turbulence, thereby reducing the depth and volume of local scouring that can affect said structures. The inventive covering element also reduces the drag force caused by the relative movement of the objects (10) in relation to the liquid medium and, as such, can be applied to objects that move in an aquatic environment. In addition, the covering element can have an efficient hydrodynamic profile which generates an additional reduction in terms of scouring and drag force. Furthermore, the invention can include a mechanism for automatically orienting the covering element if the direction of the flow varies.
Ce revêtement (20, 21) à rugosité artificielle spécialement conçu (18, 19) pour recouvrir des structures et des objets (10) submergés dans un liquide (12) et s'appuyant sur un fond érodable, notamment des piliers des pilonnes pour ponts, tuyaux et analogues. Une telle rugosité diminue l'intensité du flux secondaire se trouvant dans le bord d'attaque des structures, ainsi que celle de la traînée turbulente. Ainsi, on réduit la profondeur et le volume d'érosion menaçant de tels structures. Le revêtement réduit aussi la force de traînée en raison du mouvement relatif des objets (10) par rapport au milieu liquide, d'où son application à des objets mobiles dans un milieu aquatique. Le revêtement peut présenter un profil hydrodynamique efficace, entraînant une diminution supplémentaire de l'érosion et de la force de traînée et présenter un mécanisme d'orientation automatique du revêtement, si le flux suit une direction variable.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Bonilla Gris Robie
LandOfFree
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