| 摘要 |
FIELD: hydraulic engineering, particularly forming temporary fence during building and construction works, dredging operations or treating works. SUBSTANCE: barrage has apron made of floating cells filled with ballast and having the form of rectangular caissons with shields pivotally connected thereto from upstream side. Shields are supported by articulated struts or girders. Cell caissons are made of metal and have sloped edges. Cell bottoms are bounded around the perimeter by watertight skirt. Upstream bottom part before barrage, sloped caisson edges and shields located in working position are covered with watertight film. On curvilinear bottom parts apron is formed with the use of cells having nonisosceles cross sections in barrage location. EFFECT: decreased material consumption, reduced cost, simplified work technology. 2 cl, 1 dwg |
