BARRAGE, IN PARTICULAR A BARRAGE FOR CLOSING OFF A TIDAL CHANNEL DURING A STORM TIDE

摘要

the dam embankments used for landslide cut off the channels are, in particular, to the following disadvantages: construction cost, change of the cross section of channel flow and eliminating expensive things, and, more specifically, the marine maintenance cult.in addition, they must provide a navigable channel through at least 200 to 400 m wide, with a sufficient depth of water at low tide. the dam dam proposed to overcome these drawbacks include parts (1a - 1d) plug, which can be moved on the inclined ramps (22).the characteristic of the dam is dam in case of non use of the board, and preferably on the side of channel elements are turned into each other in the manner of a telescope.the length of the basic elements (2) forming the inclined ramps (22) is selected in such a manner that the sealing elements (1a - 1d) displaceable independently of each other on track can be completely extracted by water and turned into each other over the average high tide (44).the horizontal sealing elements (1a - 1d) is in the form of a triangle, the face turned to the sea for the retaining wall (11) and the face turned to the earth (12) absorbing mainly support forces.