Classifications

• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02B—HYDRAULIC ENGINEERING
  • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
  • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
  • E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
  • E02B3/106—Temporary dykes
  • E02B3/108—Temporary dykes with a filling, e.g. filled by water or sand

Definitions

• Invention concerns segment of flood-protection wall based on special bag filled with water. Walls built-up form individual segments mentioned are intended - as temporary barring and sealing elements - above all for quick protection separate objects against floods. They are usable in wide range of dangerous flood situations.
• Triangular or trapezoidal cross section is a common disadvantage of above mentioned flood-protection walls. Triangular or trapezoidal cross section is necessary to be supported by some structure, internal partitions, etc. In cross section vertices strain can focus, too.
• flood-protection bags have domed shape when filled.
• one of bags has depressed ellipse surface sheet supported by internal longitudinal partition connecting upper and lower bag wall.
• Surface sheet is made of watertight polyester fabric coated by polyvinylchloride.
• Another known flood-protection bag has surface sheet created by three mutual intersected convex surfaces ("trefoil" cross section). Also in this case shape of filled bag is kept by internal partitions connecting opposite sides of bag surface sheet. Bag surface sheet is made of geo-fabric (no detailed specification of design and, composition).
• flood-protection bags of domed design are advantageous, because the tonic strain of their surface is better. They also have design possibilities for higher mechanical resistance and durability than bags of other shapes of cross sections. But there is one lack of functional design: these bags are not fully optimised as from point of view of functional design as from point of view of materials used for surface sheet production. Used materials with plastic coatings (especially polyvinylchloride) are not optimal in this way of application neither from point of view of possibility of immediate mechanical damage during handling with bags nor from point of view of long-term resistance during given fl ⁇ d situation.
• Segment of flood-protection wall based on special bag filled with water according to invention contributes to elimination of above mentioned lacks of known designs.
• the segment occupies (analogous to more sophisticated representatives of flood- protection bags) domed shape over its basis which is defined by at least one convex surface.
• Opposite parts of inner wall in bag cavity are connected by at least one stability partition.
• Principle of invention lies in ratio of rectangular projection of segment width to rectangular projection of segment height is within 1.5 : 1 to 3.5 : 1; segment has at least one filling throat and at least one vent throat in the top area; segment has at least one draining throat in the foot area; segment surface sheet is made of plain weave fabric two-sided coated by elastomer compound based on EPDM rubber and butadiene-styrene rubber.
• connection separate segments to compact flood-protection wall it is advantageous to provide end areas of segment surface sheet with connecting fixtures containing metallic loopholes.
• compound for coatings of segment surface sheet made of plain weave fabric two-sided coated by elastomer compound based on EPDM rubber and butadiene-styrene rubber has tensile strength at least 10 MPa, elongation at least 400%, compression set 50% max., low temperatures resistance to -25°C and high temperatures resistance to 70°C.
• segment surface sheet is 1.2 to 1.4 mm thick.
• Segment of flood-protection wall is advantageous, because it joins together advantages of optimised segment bag design (domed shape with defined ratio width to height and with defined placing filling, draining and venting throats) and advantages of optimised composition of materials of segment surface sheet.
• Plain weave fabric two-sided coated by elastomer compound based on EPDM rubber and butadiene- styrene rubber especially with more exact defined mechanical properties and in connection with above mentioned defined bag design ensures optimum handling and usable properties of the segment as well as in hard space and meteorological conditions. First of all this ensures meeting of priority requirement for reliable function of segments, or walls of them put together respectively, during the whole flood situation continues.
• Segment surface sheet 2 is made of plain weave fabric two-sided coated by elastomer compound based on EPDM rubber and butadiene-styrene rubber.
• Polyester fabric has square weight 140 grs/m 2 ⁇ 10% and tensile strength 2294 N (warpwise) and 2298 N (weftwise) having been determined on a sample 50 x 200 mm dimensions.
• Coatings of segment surface sheet 2 are 1.29 mm thick.
• Compound based on EPDM rubber and butadiene-styrene rubber has tensile strength 11.5 MPa, , elongation 455%, compression set 45% max., low temperatures resistance to -25°C and high temperatures resistance to 70°C.
• segment surface sheet 2 End areas of segment surface sheet 2 are provided with connecting fixtures containing metallic loopholes 6 for connecting adjoining segments with rope 7.
• carrier loopholes 8 made of rubberised fabric fastened on surface sheet 2_by curing for to make easy handling with segment L
• Segment 1_ of flood-protection wall designed according to fig. 1 and fig. 2 is designated for to scale up banks, to embank separate houses or bigger areas with integral flood- protection wall, to dam streets in towns (between houses) for to stop water from breaking into gate-ways of houses, etc. Segments 1 of this design can stand on free area without bearing on any wall.
• Ratio of rectangular projection of width s of segment i to rectangular pi ⁇ jccti ⁇ n ⁇ f height y ⁇ f segment 1 is wilhin 2.15 : 1 , length ⁇ f segment c ⁇ uld be 2 t ⁇ 5 m.
• Segment 1 has one filling throat 3_and one vent throat 4 in the top area and at least one draining throat 5 in the foot area;
• Segment surface sheet 2 of segment 1 is made of plain weave fabric two-sided coated by elastomer compound based on EPDM rubber and butadiene-styrene rubber.
• Polyester fabric has square weight 140 grs/m 2 ⁇ 10% and tensile strength 2294 N (warpwise) and 2298 N (weftwise) having been determined on a sample 50 x 200 mm dimensions.
• Coatings of segment surface sheet 2 of segment 1 are 1.29 mm thick.
• Compound based on EPDM rubber and butadiene-styrene rubber has tensile strength 1 1.5 MPa, , elongation 455%, compression set 45% max., low temperatures resistance to -25°C and high temperatures resistance to 70°C.
• segment surface sheet 2 End areas of segment surface sheet 2 are provided with connecting fixtures containing metallic loopholes 6 for connecting adjoining segments with rope 7.
• carrier loopholes 8 made of rubberised fabric fastened on surface sheet 2_by curing for to make easy handling with segment 1.
• Segment i of flood-protection wall designed according to fig. 3 and fig. 4 is designated above all for to stop water from breaking into doors, garage gates, low placed wells and air slots, separate cellar windows, etc. Segments 1 of this design must be supported or ensured alternatively. If necessary to use in free area, segments must be doubled and mutually gone on.
• segments according to example 1 and example 2 respectively, separate segments are positioned on given place so that they lie on lower side with filling and venting throats upwards and with draining throats directed to water.
• Segments according to example No. 2 which are used separately are to be statically secured, e.g. tied to secured object.
• statically secured e.g. tied to secured object.
• Segments according to the invention are filled with water, not pressurized. Filling time (according to pump supply) is about 15 minutes in case of standard segment 5 metres long. As soon as the segment is full (it is not possible to stop outflowing water from venting throat 4 by lifting side walls), water inflow from the source will be stopped, hose will be disconnected and filling throat 3 and venting throat 4 will be closed with covers.
• Flood-protection wall built-up from segments according to the invention is safe to water column of 0.8 meter high. In case of unruffled spilled water on lower reach of rivers and according to landform and subsoil it is possible to reach maximum secure height of 0.9 metres.
• the flood-protection can be dismantled quickly. Draining throats of separate segments 5 and venting throats 4 (eventually also filling throats 3 ) will be opened and water will drain off. Separate segments will be released by unbinding ropes 7 and transported to stock or to next use.
• Segments according to the invention and flood-protection wall built-up of them are of use not only at floods or ominous floods (where sack of sand are used) but also in conventional situations, e.g. as damming up of parts of water streams - so called “pooling" during bed or bank reparations, etc.). Simple segments are not designated to positioning directly against the strong stream. In this case it is necessary to use doubled set.
• Segments designed according to the invention are permanent resistant against drinking water, supply water and sewage water, which can be discharged into water flows in accordance with relevant legal regulations. They are resistant against waste water washed out from sewers and septic tanks by floods. Depending on concentration segments are partially resistant against aggressive fluids and oil products. These media can be collected in segments, but for needful time only, e.g. during accidents. In this case it is necessary to empty segments as soon as possible and dispose after use (consider it to be single-purpose).
• Flood-protection walls designed according to the invention arc possible to be placed on any subsoil. It is recommended to place it especially on reinforced subsoil - concrete, pavement, bitumen, etc. If possible it is suitable to clean necessary area and remove sharp and similarly dangerous objects. If not necessary it is better not to place segments on slippery surface in order not to be displaced, or on sandy or gravel subsoil in order not to be undermined by water.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Environmental & Geological Engineering (AREA)
• Ocean & Marine Engineering (AREA)
• Mechanical Engineering (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Revetment (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Woven Fabrics (AREA)
• Barrages (AREA)

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Publications (2)

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Cited By (7)

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Citations (4)

• 2000
  • 2000-08-02 CZ CZ20002812A patent/CZ291602B6/cs not_active IP Right Cessation
• 2001
  • 2001-07-27 AU AU2001278354A patent/AU2001278354A1/en not_active Abandoned
  • 2001-07-27 WO PCT/CZ2001/000042 patent/WO2002010519A1/en not_active Ceased
  • 2001-07-27 SI SI200120043A patent/SI21103A/sl not_active IP Right Cessation
  • 2001-07-27 SK SK77-2003A patent/SK286729B6/sk not_active IP Right Cessation
  • 2001-07-27 PL PL362284A patent/PL204520B1/pl unknown
  • 2001-07-27 UA UA2003021724A patent/UA72997C2/uk unknown
  • 2001-07-27 EP EP01956261A patent/EP1307618B1/en not_active Expired - Lifetime
  • 2001-07-27 ES ES01956261T patent/ES2281432T3/es not_active Expired - Lifetime
  • 2001-07-27 DE DE60125950T patent/DE60125950T2/de not_active Expired - Lifetime

Patent Citations (4)

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