SI21103A - Segment of flood-protection wall based on special bag filled with water - Google Patents

Abstract

Segment of flood-protection wall based on special bag filled with water Segment of flood-protection wall is based on special bag filled with water. When filledthe segment occupies (analogous to more sophisticated representatives of flood-protectionbags) domed shape over its basis which is defined by at least one convex surface. 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 toparea and at least one draining throat in the foot area; opposite parts of inner wall in bag cavityare connected by at least one stability partition. Segment surface sheet is made of plain weave fabric two-sided coated by elastomer compound based on EPDM rubber and butadiene-styrene rubber.

Description

Float wall segment comprising a water-filled bag

The field of technology

The invention relates to a segment of a flood wall based on a special bag filled with water. The individual walls of the built-up walls are intended - as temporary elements for prevention and sealing - especially for the rapid protection of individual structures from floods. They are useful for a wide range of hazardous flood situations.

The state of the art

Currently, there are several known constructions of anti-flood bags and flood walls from such flood protection bags. For example, there is a group of bags filled with water, the cross section of which is made from the base of a triangle. The cross-sectional shape can be supported by external support bars or by internal compartments, usually placed in bags. In this case, the surface or wrap of the bag is made of chemically resistant plastic, namely low density polyethylene.

In principle, a similar flooding system is made with open sacks (tanks) with trapezoidal sections. The bags are supported by a robust and quickly assembled steel tube structure and the surface is made of geotextiles or polyvinyl chloride coated fabric. Such bags are filled with sand, soil or water (impermeable construction).

A triangular or trapezoidal cross-sectional shape is a common weakness of the aforementioned flood walls. Triangular or trapezoidal sections must be supported by some structure, internal compartments, etc. Tension angles can also occur in the cross sections.

For these reasons, it is reasonable to design a domed cross-sectional shape defined by one or more intersecting surfaces. Such bags are better adapted to the conditions of the water mass due to gravity and surface tension.

For these reasons, well-known float bags have domed shapes when filled. For example, one of the bags has a surface or a. a surface (which may be a sheet or sheet) in the form of a compressed ellipse supported by internal longitudinal compartments joining the upper and lower walls of the codend. The surface is made of waterproof polyvinyl chloride coated polyester fabric.

The next known float bag has a surface of three intersecting convex surfaces ("clover" section). In this case, too, the shape of the filled bags is maintained by internal compartments joining the opposite sides of the surface of the bags. The surface is made of geotextiles (with no precise specifications of shape and composition).

As noted above, the advantage of dome-shaped flood bags is due to the more favorable tension of their surfaces. They also have design options for higher mechanical strength and durability than other cross-sectional designs. But they have a functional disadvantage: these bags are not fully optimized in terms of form functionality as well as in terms of materials used to produce surface surfaces. The materials used with plastic coatings (especially polyvinyl chloride) are not optimal in this respect either in terms of the possibility of immediate mechanical damage or in terms of long-term resistance during floods.

The principle of the invention

The float wall segment, based on a special bag filled with water according to the invention, contributes to eliminating the aforementioned defects of the existing designs. After filling, the segment (analogous to the more complex representatives of the flood bags) has the shape of a dome above its base, defined by at least one convex surface. The opposite sides of the inner wall inside the bag are connected to at least one compartment to improve stability.

The basis of the invention is in the ratio of the rectangular projection of the width of the segment to the orthogonal projection of the height of the segment and ranges from 1.5: 1 to 3.5: 1; the segment has at least one charge port (opening) and at least one vent port in the upper portion; the segment has at least one lower discharge port; the surface surface (sheet or tarpaulin) of the segment is made of linen-coated textile on two sides with an elastomeric compound based on EPDM (ethylene-propylene-diene) rubber and / or butadiene-styrene rubber.

From the viewpoint of connecting separate segments to a compact float wall, it is advantageous if the end members (that is, the parts at the beginning and end of the segment) have the surface surfaces of the segment connecting elements that comprise metal eyelets.

For ease of handling, it is advantageous if at least four metal lugs are attached to each segment of the floodwall.

As textile, it is advantageous to use cloth of linen with tensile strengths of 1800 N to 2300 N (in the direction of the basic threads) and 2000 N to 2300 N (in the direction of the weft threads) specified (measured) on a sample of dimension 50 x 200 mm. It is possible to use polyester fabric with a mass per unit area of 140 g / m ² ± 10%.

It is advantageous when the cover surface of the segment surface is made of textile linen coated on two sides with an elastomeric compound based on EPDM rubber and butadiene styrene rubber with a tensile strength of at least 10 Mpa, a stretchability of at least 400%, a compressibility of up to 50%, a resistance to low temperature up to -25 ° C and high temperature resistance up to 70 ° C.

It is advantageous when the segmental surface coating is 1.2 to 1.4 mm thick.

The float wall segment of the present invention is advantageous because it combines the advantages of optimized segment shapes (dome shape with defined width-to-height ratio and defined filler, vent and discharge neck locations) and the advantages of optimized surface coating composition of the segment. Linen textiles coated on two sides with an elastomeric compound based on EPDM rubber and butadiene styrene rubber, especially with more strictly defined mechanical properties and in connection with the aforementioned bag design, provides easy use and useful properties of the segment, as well as in difficult spatial and meteorological conditions . This in particular ensures the reliable function of segments or walls of composite segments during the duration of a flood situation.

Summary of pictures

For further explanation of the principles of the invention, figures are provided, wherein Figure 1 shows a side view of a simple domed segment according to the invention, Figure 2 shows a cross-section at location A of Figure 1, Figure 3 shows a side view of a double-domed segment according to the invention, Figure 4 B in Figure 3.

Examples of the invention used

Example 1

Segment 1 according to Figure 1 or Figure 2 after filling comprises a domed surface above its base, defined by a single convex surface - cross-section of a "round loaf" shape. The ratio of width 5 to height in segment 1 in rectangular projection is in the range 2.15: 1, the length of the segment can be 2 to 2.5 m. Segment 1 has one fill port 3 and one vent port 4 in the upper (upper) region and at least one discharge port 5 in the lower (bottom) region;

Segment surface 2 is made of a cloth of two-sided liner coated on two sides with an elastomeric compound based on EPDM rubber and butadiene-styrene rubber.

The polyester fabric has a mass per unit area of 140 g / m ² ± 10% and a tensile strength of 2294 N (in the direction of the basic threads) and 2298 N (in the direction of the weft threads), determined on a sample of dimension 50 x 200 mm.

The coating of segmental surface 2 is 1.29 mm thick. The compound based on EPDM rubber and butadiene styrene rubber has a tensile strength of 11.5 MPa, an elongation of 455%, a compressibility of no more than 45%, a low temperature resistance of up to -25 ° C and a high temperature resistance of up to 70 ° C.

Inside the segment, the upper surface area 2 of segment 1 is connected to the lower wall opposite the lower part by a barrier to improve stability 9.

The terminals of the segment surface 2 are provided with connecting elements comprising metal lugs 6 for connecting the adjacent segment to the ropes 7. The object also includes, as an example, a support loop 8 made of a rubber material attached to the surface surface 2 for carrying and easy handling. segment 1.

Flood wall segment 1, modeled on Fig. 1 and Fig. 2, is intended for raising embankments for fencing an individual house or larger area with integral floodplain, for blocking streets in cities (between houses) for stopping water from breaking into house approaches, etc. 1 of this shape can stand on a free surface without leaning against any wall.

Example 2:

Segment 1 according to Figure 3 or Figure 4 after filling comprises a domed surface above its base, which is defined by two convex surfaces - a cross-section of a leaf-like shape. The ratio of width s and height in segment 1 in rectangular projection is in the range 2.15: 1, the length of the segment can be 2 to 5 m. Segment 1 has one charge port 3 and one vent port 4 in the upper (upper) region and at least one discharge port 5 in the lower region (at the bottom);

The segment surface 2 of segment 1 is made of a cloth of canvas coated on two sides with an elastomer compound based on EPDM rubber and butadiene styrene rubber.

The polyester fabric has a mass per unit area of 140 g / m ² ± 10% and a tensile strength of 2294 N (in the direction of the basic threads) and 2298 N (in the direction of the weft threads), determined on a sample of 50 x 200 mm.

The coating of the segment surface 2 of segment 1 is 1.29 mm thick. The compound based on EPDM rubber and butadiene styrene rubber has a tensile strength of 11.5 MPa, an elongation of 455%, a compressibility of no more than 45%, a low temperature resistance of up to -25 ° C and a high temperature resistance of up to 70 ° C.

-6Inside the segment, the upper surface area 2 of segment 1 is connected to the opposite lower wall by a barrier to improve stability 9, and the side walls of the surface surface 2 of segment 1 are connected horizontally to the barrier to improve stability 9.

The terminals of the segment surface 2 are provided with connecting elements comprising metal eyelets 6 for connecting the adjacent segment to the ropes 7. The article of the invention also comprises a support loop 8 made of a rubber material attached to the surface surface 2 for carrying and easy handling. segment 1.

Flood wall segment 1 formed according to Figure 3 and Figure 4 is intended primarily to stop water from invading doors, garage doors, low-lying shafts or vents, separate basement windows, etc. Segment 1 of this implementation must be supported or alternatively secured. If they are to be used on a free surface, the segments must be duplicated and mutually supported.

When using the segments as described in Example 1 and Example 2, the individual segments are positioned in a given position so that they lie on their underside with the filler and ventilation door above and the outlet door pointing toward the water.

The best sealing is achieved by placing the segments one against the other so that they are in contact with the undersides of their side walls. The closer they are connected, the more tightness is achieved. If only a longer segment is available at a given location, it can be bent up and sealed by pressing into the corner.

The segment can be filled from any water source - various pumps for river water or other sources, fire tanks or other, fire hydrants, water supply systems, etc. Connection to filler port 3 is provided by a type C fire extinguisher. Emergency filling can be ensured by a thinner tube without a connection link. Such a pipe is inserted through the filler neck into the bag.

Multiple segments can be filled simultaneously (depending on the equipment available) or segment by segment. For each charge, it is advisable to insert the following member under the side wall of the full segment. After filling the segments, the segments connect to the ropes in use

-7 metal ears 6. If possible, depending on the surrounding conditions, it is advisable to attach at least the finishing parts of the floodwall to solid objects (frames placed in concrete, massive buildings that are not expected to be damaged by the flood) or to objects in higher places.

The segment of Example 2, used individually, must be statically secured, secured to the secured object. To ensure maximum sealing, it is necessary to install the bottom side of the segment exactly to the sealed wall and to check the correct position of the rising side walls during the filling of the segment.

The segment of the invention is filled with water, not under pressure. Charging time (depending on pump capacity) is approximately 15 minutes in the case of a standard segment of 5 m length. When the segment is full (it is not possible to stop the flow of water from the ventilation door 4 by lifting the side walls), the flow of water from the source is stopped, the hose is separated and the filling door 3 and the ventilation door 4 are closed with lids.

The flood-proof wall constructed from the segments according to the invention is secure to a water column of 0.8 m height. In the case of calm spilled water at the lower reaches of the river and depending on the shape of the surface and the layer of soil directly below the surface, a maximum height of 0.9 meters can be reached.

Flood protection can be quickly removed after the end of flood exposure. The outlet port 5 of each segment and the ventilation port 4 (possibly also the fill port 3) open and the water flows out. The individual segments will be separated by unbundling 7 and transported to the warehouse or to the point of next use.

Industrial applicability

The segment of the invention and the flood walls made of them are not only used in floods or threatening floods (where sandbags are in use) but also in normal situations, e.g. for damming parts of watercourses - the so-called ρ °° '· ^η § during repair of a riverbed or embankment. Simple segments are not intended to be placed directly against high currents. In this case, it is necessary to use segments in pairs.

It is possible to use water drawn from rivers, fire tanks etc. to fill the segments. using conventional fire-extinguishing (fire) couplings.

The segment performed according to the invention is permanently resistant to drinking water, feed water and waste water, which can be discharged into water courses in accordance with the relevant regulations. They are resistant to wastewater extracted by flooding from wastewater drains and septic tanks. Depending on the concentration, the segments are partially resistant to aggressive liquids and petroleum products. These media can be grouped into a segment, but only for the required time, e.g. during an accident. In this case, the segments should be emptied as soon as possible and removed after use (considered to be for single use).

Flood walls according to the invention can be installed on any surface. It is especially advisable to install them on a hardened base - concrete, paving, bitumen, etc. If possible, it is advisable to clean the necessary area and remove sharp and similarly dangerous objects. If it is not necessary, it is better not to place the segments on slippery surfaces so that they do not move or to place them on sandy or pebble substrates so that water does not undermine them.

Claims (7)

PATENT APPLICATIONS 1. Float wall segment comprising a water-filled dome-shaped sack above its base after filling with water, wherein the dome shape is defined by a surface in the form of at least one convex surface in cross-sectional view, with opposite portions of the inner wall of the segment surface connected to at least one a stability improvement compartment, wherein the segment is characterized by the ratio between the rectangular projection of the width (s) of the segment (1) and the orthogonal projection of its height (v) in the range between 1.5: 1 to 3.5: 1, that the segment (1) has at least one filler neck (3) and at least one vent door (4) at the top of the dome-shaped area and at least one discharge port (5) at the bottom, wherein the filler neck (3) is provided with a conventional fire hose connection and the surface (2) of the segment (1) is made of linen-coated textile coated on both sides with an elastomer compound based on a mixture of ethylene-propylene-diene rubber and styrene-butadiene rubber. 2. Float wall segment according to claim 1, wherein its surface (2) is provided with connecting elements comprising metal eyelets (6) at the terminations. Flood wall segment according to claim 1, wherein at least four support loops (8) are attached to its surface (2). 4. Float wall segment according to claim 1, characterized in that the elastomeric compound on both sides is coated with a textile fabric of mild tensile strength, measured on a sample of dimensions 50 x 200 mm, 1800 N to 2300 N in the direction of the basic filaments and 2000 N to 2300 N in the direction of weft threads. The flooding wall segment of claim 4, wherein the textile is a polyester fabric with a mass per unit area of 140 g / m ² ± 10%. 6. Float wall segment according to claim 1, wherein the ethylene-propylene-diene rubber / styrene-butadiene rubber mixture comprising the coating (2) has a tensile strength of at least -1010 10 MPa, burst elasticity of at least 400%, compressibility of not more than 50%, low temperature resistance up to -25 ° C and high temperature resistance up to 70 ° C. Float wall segment according to claim 1, characterized in that the elastomeric coating of the surface (2) is 1.2 to 1.4 mm thick.