Underwater construction of impermeable protective sheathings for hydraulic structures
AssigneeSibelon S.r.l.
InventorAlberto Scuero
Life of this patent
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Abstract
A system for constructing underwater impermeable protective sheathings of hydraulic structures or parts of them. At least one reference line is provided on the surface area to be protected and a protective sheathing is constructed underwater by positioning and stretching impermeable sheet materials over the area, keeping one lateral edge of each sheet material parallely aligned to said reference line, and maintaining hydrostatic balanced conditions between the pressures on the front and rear faces of each sheet material; the sheets are afterwards watertight connected along their edges and anchored to the surface of the hydraulic structure by mechanical anchorage devices.
Claims13
A method for constructing an impermeable protective membrane underwater on at least part of a hydraulic structure, by which the membrane, comprising flexible sheets of impermeable material, is anchored to the hydraulic structure to be protected, the method comprising the following steps:
- defining a surface to be protected;
- providing said surface with at least one reference line;
- constructing the membrane underwater by sequentially positioning each sheet of material side-by-side over the surface, such that facing edges of adjacent sheets overlap, keeping one lateral edge of said each sheet of material parallel to said reference line;
- watertightly sealing the overlapped edges of the sheets, while maintaining hydrostatically balanced conditions between pressures acting on front and rear faces of said each sheet of material;
- and
- anchoring each sheet of material to the hydraulic structure by mechanical anchorage devices on the surface to construct the impermeable protective membrane underwater on at least part of the hydraulic structure.
A method for constructing an impermeable protective membrane underwater on at least part of a hydraulic structure, by which the membrane, comprising flexible sheets of impermeable material, is anchored to the hydraulic structure to be protected, the method comprising the following steps:
- defining a surface to be protected;
- providing said surface with at least one reference line;
- constructing the membrane underwater by sequentially positioning each sheet of material side-by-side over the surface, such that facing edges of adjacent sheets overlap, keeping one lateral edge of said each sheet of material parallel to said reference line;
- watertightly sealing the overlapped edges of the sheets, while maintaining hydrostatically balanced conditions between pressures acting on front and rear faces of said each sheet of material;
- anchoring each sheet of material to the hydraulic structure by mechanical anchorage devices on the surface to construct the impermeable protective membrane underwater on at least part of the hydraulic structure;
- and
- reducing the pressure on the rear face of the membrane by gradually discharging the water by at least one of gravity and pumping.
Dependencies are inferred from the claim text.