A marine dam by means of a thin membrane for tidal range electricity generation and for fresh water storage for water supply and flood control purposes

摘要

A tidal power plant has a dam comprising a rigid or flexible membrane damming e.g a sea inlet, in preference to massive dams of poured concrete or ballast. A flexible membrane h is supported by spaced tripods of props v, w. The top of the membrane is supported between props by a suspension cable g (see figure 3). The flexible membrane described is of a woven or net base overlain with an impermeable coating or a woven textile throughout. The membrane is fixed to the sea bed, and may have landward and seaward skirts l or inflated gaskets to prevent leakage around the sea bed. This dam may make tidal range schemes economically and environmentally feasible which otherwise had been discounted. The structure may be protected from wave damage by a linear array of wave powered electricity generators deployed to seaward.