Commonwealth flexible wall dams series 3,(abbreviated as cfd3)

E - Fixed Constructions – 02 – B

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E02B 3/10 (2006.01) E02B 7/00 (2006.01)

Patent

CA 1201895

l-ABSTRACT The present invention deals with self-supporting flexible wall liquid retaining structures used for water dams, water gates, breakwaters, water walls, reservoirs and columns etc., generally referred to hereinafter as Common- wealth Flexible Dams, Water Walls, Reservoirs and Columns, series 3-A (abbreviated as CFD3-A), using in combination; a) an upstanding, elongated, flexible, impermeable, inexten- sible wall, sealingly secured at its lower edge to the base of the liquid basin, with its remaining part inclined in- ward over the liquid it retains, where the upward component of the retained liquid pressure pushes up and supports the retaining flexible wall and its attachments, while the re- maining outward liquid pressure is supported by balanced ties transferring their loads to points upstream, b) using an additional opposite symmetric flexible wall to that described in (a), with liquid filling in between and with ties connecting the opposite flexible walls to each other to counterbalance the outward liquid forces acting on them so creating a water wall capable of supporting an external waterhead of approximately the same height as the water wall itself, c) making the same flexible wall described in (a), continuous, closed in in a circular liquid filled conic shape structure resting on its larger base, with a flexible sole tightly joining the lower edge of the flexible wall skin all around and with external rings reinforcement to counterbalance the outward liquid pressure acting on the flexible wall skin, while the upward vertical component of the liquid pressure, pushing up on the inward tilting flexible wall skin, supports said skin and its attachments.

459931

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