摘要:
A ditch liner includes: a first corrugation having first and second angled sections, and a central section; and a second corrugation having first and second angled sections, and a central section. The first angled sections are adjacent to each other, the second angled sections are adjacent to each other, the central sections are adjacent to each other, a width of the first angled section of the first corrugation is different than a width of the first angled section of the second corrugation at a first location, a width of the second angled section of the first corrugation is different than a width of the second angled section of the second corrugation at a second location, and a width of the central section of the first corrugation is equal to a width of the central section of the second corrugation at a third location.
摘要:
A method and a system for punctual fastening a waterproofing and protective membrane (13) of plastic material, for protective and waterproofing surfaces (19) of hydraulic works (10), such as canals, tunnels, dams and the like. In relation to surface areas subjected to fluid and/or wind actions, the protective membrane (13) is fastened to the concrete structure (11) of the hydraulic work and/or to ground (37) by a system of punctual fastening devices (15, 16). Each fastening device (15, 16) comprises an anchoring member (23, 32, 36) to penetrate into the concrete structure (11) and/or into ground (12) along a wished depth, provided with a tie rod or fastening end portion (23′, 35, 40) partially protruding from the surface (10) to be covered, to which the protective membrane (13) is sealingly fastened and pressed against the surface area of the hydraulic structure and/or ground by locking means (25, 26, 27, 28, 29); the locking means are conformed to provide a wide annular contact surface area with the membrane (13), suitable to transmit forces and/or strains to the punctual fastening devices (15).
摘要:
The invention relates to a device and a method (1) for flood protection and coastal protection or scour protection. In order to offer cost-advantageous, durable, and effective protection, it is proposed that the device (1) has one or more elastic panels (2, 75) as well as fastening means (3) for fixing the panels in place at the locations (12) to be protected. Also disclosed is a method in which one or more elastic panels (2, 75) are fixed in place at the locations (12) to be protected, with fastening means (3).
摘要:
An asymmetric corrugated ditch liner is disclosed that is formed with asymmetrical corrugations adapted to control fluid and materials flow through the liner. The asymmetric corrugated ditch liner also includes opposing angled opposing aprons that also having asymmetrical corrugations extending from opposing top edges of the ditch liner in a direction perpendicular to the longitudinal axis of the liner. Connectors are provided for assembling the asymmetric corrugated ditch liner in a ditch. Anchors also are included for assembling the asymmetric corrugated ditch liner in a ditch.
摘要:
A sub surface aquatic weed barrier consisting of a strip of plastic held to the aquatic substrate by transverse weights bonded to the plastic strip. Gas release ports are located in the plastic sheet, positioned midway between the transverse weights.
摘要:
The specification and drawing figures describe and show an interlockable drainage system insertable into a ditch that includes two or more liner sections. Each liner section includes a plurality of corrugations that are asymmetrical. The interlockable drainage system also includes a flared channel extending from opposing edges of the liner sections. A shoulder is formed in the opposing ends of the liner sections. A plurality of bosses is formed on the shoulder. The plurality of bosses on one shoulder is compressibly connectable to the plurality of bosses on an opposing shoulder, thus connecting one liner section to another. A connector is provided for added interconnectability of the plurality of bosses. This abstract is provided to comply with rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure, but this abstract is not to be used to interpret or limit the scope or meaning of any claim.
摘要:
The present invention relates to geotextile/polyurethane/polyurea and/or geotextile/polyurea composites prepared by soaking geotextiles with one-component heterogeneous liquid polyurethane compositions and subsequently curing by heat or solvent addition to form a geotextile/polyurethane composite. The inventive composites may find use as liners for canals and ditches for irrigation and wastewater, roof membranes, secondary containment, etc.
摘要:
An open modular ditch liner includes a plurality of open liner sections and at least one channel alignment key. The at least one channel alignment key is sized to receive a thickness of two adjacent open liner sections. An erosion barrier insert may be placed between the ends of two adjacent open liner sections. A radius liner insert may be placed between the ends of two adjacent open liner sections. The width of an open liner section may be expanded with a plurality of side connection keys and a plurality of expandable liner sections. A plurality of pitch expandable liner sections may be inserted between the plurality of open liner sections and expandable liner sections. At least one side of the plurality of open liner sections and expandable liner sections may be mitered.
摘要:
A modular ditch liner have open and closed embodiments. An open modular ditch liner includes a plurality of open liner sections and at least one alignment key. A substantially concave shape is formed in a top of each open liner section. A key slot is preferably formed on at least one side of each open liner section to receive a single alignment key. A closed modular ditch liner includes a plurality of closed liner sections, a plurality of covers, and at least one alignment key. The cross section of each closed liner section includes at least one trough contour and a single cover retention lip formed on a top end of each side thereof. Each cover is laterally retained between the two cover retention lips. A key slot is preferably formed on at least one side of the closed liner section to receive a single alignment key.