JP2008285841A - Water cut-off wall and method of constructing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temporary water cut-off wall quickly constructible and hard to be collapsed even if a predetermined water cut-off height is secured. <P>SOLUTION: This water cut-off wall 51 comprises a plurality of hoses 1 stacked in multiple stages and hose support members 2 in contact with the hoses 1 from the direction perpendicular to the longitudinal direction of the hoses 1. The hoses 1 are stacked in multiple stages, and the hose support members 2 are arranged at predetermined intervals in the longitudinal direction of the hoses 1. The hose 1 is charged with a fluid. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a water blocking wall for preventing inundation of a building such as an underground mall or a building, and a water blocking wall construction method for forming the water blocking wall.

In urban areas, underground development is actively conducted from the viewpoint of effective use of land, and the number of entrances to the underground shopping mall is increasing. The underground shopping center is convenient because it is unaffected by the weather, but it is also susceptible to flood damage from typhoons and torrential rains. That is, when a large amount of rainwater flows from the underground street entrance, if the underground drainage facility is insufficient, the entire underground street will be flooded. Similarly, in a building such as a building on the ground, a large amount of rainwater may flow from the entrance of the building and flood the interior of the building.
Here, as a method of preventing inundation of buildings such as underground shopping malls and buildings, in general, flooding is performed by building a simple wall by stacking sandbags of a certain size near the entrance of underground shopping malls and buildings. There is a way to prevent it. However, the sandbags filled with soil and the like are independent in the horizontal direction, so that a small gap is generated between the sandbags, and water may enter from there. Depending on the degree of overflow, the sandbags piled up by water pressure may collapse and be washed away. On the other hand, techniques as described in the following patent documents have been proposed as a method for preventing flooding.

  Conventionally, a technique related to the impermeable wall structure for raising the height of the top of the embankment in an emergency has been proposed and disclosed for the purpose of preventing inundation of residential areas and underground structures due to water overflow from the sea or river. (For example, refer to Patent Document 1). This impermeable wall structure is equipped with a flexible tubular member that has a honey layer and can be expanded into a cylindrical shape or crushed into a strip shape, and both ends of the cylindrical member are closed to inject liquid into the interior. Thus, it is continuously provided along the side edge of the sea, river, or the like in a state of being expanded into a cylindrical shape. Since this impermeable wall structure is continuous in the horizontal direction, a seal in that direction can be secured.

  In addition, a technique relating to a water stop door and vehicle stop device having both functions of a water stop door used in an emergency and a vehicle stop used daily is also proposed and disclosed (for example, see Patent Document 2). This water stop door and vehicle stop device slides up and down along the water stop plate guide groove from the water stop plate opening provided on the passage surface, blocks the passage to a height where the vehicle cannot pass, and waterproofs to that height. It is an apparatus provided with a water stop plate and a water stop plate driving means that is installed below the water stop plate and drives the water stop plate to slide up and down.

JP 2000-303425 A JP 2001-248140 A

  However, in the water-impervious wall structure described in Patent Document 1, in order to increase the water-impervious wall, it is necessary to increase the diameter of the cylindrical member or to stack the cylindrical members in multiple stages. First, when the diameter of the tubular member is increased, the weight of the tubular member increases and it takes time to install the tubular member at a predetermined position, and a large amount of liquid to be injected into the tubular member is required, and the filling is also time consuming. There is a problem that it takes. Next, when stacking the cylindrical members in multiple stages, the installation of the cylindrical members becomes more unstable toward the upper stage, and the water-impervious wall made up of a plurality of cylindrical members tends to collapse.

  Further, in the water stop door and vehicle stop device described in Patent Document 2, even if the water stop plate is secured to a desired height and the weight of the water stop plate is increased, the water stop plate driving means is provided. Because it is equipped, it does not take much time to raise and lower the water stop plate. However, if such a water stop and vehicle stop device is installed at the entrance to an underground shopping mall, for example, a large-scale construction is required, and since it is a permanent installation, periodic maintenance such as operation check is also required, resulting in cost. Become high.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a temporary water stop wall that can be quickly constructed and is difficult to collapse even if a predetermined water stop height is secured. To do.

Means for Solving the Problems and Effects of the Invention

  The water stop wall which concerns on this invention is related with the water stop wall for preventing inundation of buildings, such as an underground mall and a building. And the water stop wall which concerns on this invention has the following some features, in order to achieve the said objective. That is, the water blocking wall of the present invention has the following features alone or in combination as appropriate.

  In order to achieve the above object, the first feature of the water blocking wall according to the present invention is a plurality of hoses stacked in multiple stages and a plurality of hoses stacked in multiple stages from a direction orthogonal to the longitudinal direction of the hoses. A plurality of hoses stacked in multiple stages, the hose support members are arranged at predetermined intervals in the longitudinal direction, and a fluid is filled inside the hose. That is.

  According to this configuration, the plurality of hoses in which the fluid is injected and stacked in multiple stages are fixed by the hose support member, thereby forming a temporary water stop wall that easily secures a predetermined water stop height. . In addition, even if the water blocking wall receives water pressure due to rainfall caused by, for example, a typhoon or heavy rain, it is not easily collapsed because it is fixed by the hose support member. In addition, since the plurality of hoses forming the water blocking wall are fixed by the hose support member in a state where they are stacked in multiple stages, they are not easily collapsed even if they are used by stacking relatively small diameter hoses, that is, they are handled relatively lightly. It becomes possible to use an easy hose, and the water blocking wall can be quickly constructed in an emergency.

  Further, the second feature of the water blocking wall according to the present invention is that the hose support member has a flat contact surface that contacts the hose from both sides in a direction orthogonal to the longitudinal direction of the hose and is self-supporting. It consists of a pair of steel plate members.

  According to this configuration, even if the hose is pressed against the hose support member by water pressure, the hose is hardly damaged because it is pressed against the flat contact surface of the hose support member. Moreover, since the hose support member is made of a steel plate member, its strength is high, and it is difficult to bend even when water pressure is applied. Further, since the hose support member itself can stand on its own, it can be installed at any place as long as installation space can be secured.

  Further, the third feature of the water blocking wall according to the present invention is further provided with a band-shaped band for fixing the plurality of hoses stacked in multiple stages, and the plurality of bands from the direction orthogonal to the longitudinal direction. It is suspended in the shape of figure 8 around the hose.

  According to this configuration, the plurality of hoses stacked in multiple stages are fixed to each other by the band-like band. Thereby, the water stop wall which consists of a some hose becomes difficult to collapse further. Further, even if the hose is damaged and some fluid leaks from the inside of the hose, the hose rigidity is somewhat lowered, so that the water blocking wall is hardly deformed by the binding force of the band.

  The fourth feature of the water blocking wall according to the present invention further includes a sheet-like member for covering the plurality of hoses stacked in multiple stages from a direction orthogonal to the longitudinal direction, It is covered with the said sheet-like member.

  According to this structure, the integrity of the water stop wall which consists of a several hose piled up in multiple stages can be improved. That is, the water blocking wall is more difficult to collapse.

  Moreover, the water blocking wall construction method according to the present invention relates to a water blocking wall construction method for forming a water blocking wall for preventing inundation of buildings such as underground malls and buildings. And the water blocking wall construction method according to the present invention has the following features in order to achieve the above object. That is, the water blocking wall construction method of the present invention includes the following features alone or in combination.

  In order to achieve the above object, the first feature of the water blocking wall construction method according to the present invention is a hose installation step in which a plurality of hoses are stacked in multiple stages, and a direction perpendicular to the longitudinal direction of the hoses. A supporting member arranging step of arranging the abutting hose supporting members at a predetermined interval in the longitudinal direction; and a fluid filling step of filling a fluid into the plurality of hoses stacked in multiple stages. That is.

  According to this configuration, since the water stop wall composed of a plurality of constructed hoses is fixed by the hose support member, it is easy to ensure a predetermined water stop height and, for example, due to rainfall caused by typhoon or concentrated heavy rain. Even if it receives water pressure, it is hard to collapse. Further, since the plurality of hoses are fixed by the hose support member in a state where they are stacked in multiple stages, it is difficult to collapse even if they are used by stacking relatively small diameter hoses, that is, it is necessary to use a hose that is relatively light and easy to handle. It becomes possible, and the water barrier can be quickly constructed in an emergency.

  Further, the second feature of the water blocking wall construction method according to the present invention is that the band-like bands for fixing the plurality of hoses are stacked in multiple stages from a direction orthogonal to the longitudinal direction. It is provided with the band installation process suspended in the shape of figure 8 around.

  According to this configuration, the plurality of hoses stacked in multiple stages are fixed to each other by the band-like band. Thereby, the water stop wall which consists of a some hose becomes difficult to collapse further. Further, even if the hose is damaged and some fluid leaks from the inside of the hose, the hose rigidity is somewhat lowered, so that the water blocking wall is hardly deformed by the binding force of the band.

  Moreover, the 3rd characteristic in the water blocking wall construction method which concerns on this invention is equipped with the sheet | seat installation process which covers the said several hose piled up in multiple steps with the sheet-like member from the direction orthogonal to the said longitudinal direction. It is.

  According to this structure, the integrity of the water stop wall which consists of a several hose piled up in multiple stages can be improved. That is, the water blocking wall is more difficult to collapse.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. The water barrier according to the present invention is not only installed near the entrance of buildings such as underground malls and buildings to prevent inundation of buildings such as underground malls and buildings, but also installed on embankments such as seas and rivers. It can also be used to prevent flooding in residential areas.

  FIG. 1 is a perspective view showing a water blocking wall 51 according to an embodiment of the present invention. FIG. 1A shows the water blocking wall 51, and FIG. 1B shows a modification of the hose support member (2, 2 ′) of the water blocking wall 51. As shown to Fig.1 (a), the water stop wall 51 of this embodiment is the several hose 1 (1a, 1b, 1c) stacked | stacked in the multistage with which the fluid (for example, tap water) was filled inside. And a hose support member (2, 2 ') that abuts against the hose 1 from a direction perpendicular to the longitudinal direction of the hose 1 and is self-supporting.

  The hose 1 is, for example, a tubular woven fabric formed of a warp made of polyester fiber and a weft continuously woven into the warp in a spiral shape, and its inner and outer surfaces are covered with latex and watertight. It is said. Here, the warp of the hose 1 is woven so as to be linear in the longitudinal direction of the hose 1 so that the weft of the hose 1 is bent in the radial direction of the hose 1. The length of the weft forming the hose 1 is about 5 to 20% longer than the length of the warp. For this reason, when tap water is poured into the hose 1, the hose 1 tends to expand in the radial direction and tends to contract in the longitudinal direction. Therefore, the hose 1 does not meander between the hose support members (2, 2 ′) when the tap water is poured into the inside, and is almost linear, whereas the hose 1 tends to expand in the radial direction. 2, 2 ′) trying to be in close contact with the contact surface S. Therefore, the workability of stacking a plurality of hoses 1 in multiple stages is improved, and the constructed water blocking wall 51 is sturdy and does not easily collapse. In addition, the hose 1 may not be resin-coated on the inner and outer surfaces, but may be a resin-coated one of the inner surface and the outer surface.

  Further, both ends of the hose 1 are sandwiched between a pair of steel plates 11 via packing (not shown) so as to prevent water from leaking from both ends of the hose 1 and are closed by bolts and nuts. A bamboo shoot 12 for filling tap water into the inside of the hose 1 is attached near the end of the hose 1 via a valve (not shown). One end of the fluid supply hose 31 is attached to the bamboo shoot 12, and an injection device (not shown) such as a water tap or a pump is connected to the other end of the fluid supply hose 31. . Each of the hoses (1a, 1b, 1c) had a diameter of 65 mm, a maximum working pressure: 1.3 MPa, 370 g / m, and a length: 10 m. The diameter of the hose is preferably about φ65 to φ200 from the viewpoint of handleability.

  Moreover, the hose support member 2 is comprised from a pair of steel plate members (2a, 2b) which have the flat contact surface S which contact | connects the hose 1 so that the hose 1 may be clamped from the both sides. The steel plate member 2a has a contact portion 23a having a contact surface S, a base portion 21a attached to the lower end of the contact portion 23a by welding, and the like so as to spread obliquely downward with respect to the contact portion 23a. The contact portion 23a and the reinforcing portion 22a attached to the base portion 21a by welding or the like. The base portion 21a is connected to the base portion 21b of the steel plate member 2b arranged to oppose the steel plate member 2a through the lower side of the lowermost hose 1a by, for example, bolts and nuts. The steel plate member 2b has substantially the same structure as the steel plate member 2a, and the steel plate member 2a and the steel plate member 2b form a pair of steel plate members 2 (hose support members 2). The installation interval between the steel plate member 2 a and the steel plate member 2 b is adjusted so that the interval between the contact surfaces S is substantially equal to the diameter of the hose 1. Since the hose support member 2 made of a pair of steel plate members (2a, 2b) can itself be self-supporting, it can be installed in any place as long as the installation space can be secured. Moreover, since it consists of steel plate material, intensity | strength is also high.

  In addition, when a relatively large water pressure acts on the water blocking wall 51, such as when the water blocking wall 51 is installed on a sea or river embankment and used for measures such as overflowing water, FIG. As shown, the hose support member 2 is fixed to the ground with a steel pile 24. The pile 24 is driven into the ground through holes (not shown) provided at both ends of the base portion 21′a obtained by extending the base portion 21a of FIG. 1 (a) in a direction perpendicular to the longitudinal direction of the hose 1. The hose support member 2 is firmly fixed to the ground. The pile 24 may be wooden. A pair of steel or wooden piles having sufficient strength capable of supporting a plurality of hoses 1 subjected to water pressure instead of the hose support members (2, 2 ') made of a pair of steel plate members. (Not shown) may be used.

  Next, the construction method of the water blocking wall 51 will be described. First, a hose installation process of stacking a plurality of hoses (1a, 1b, 1c) in multiple stages is performed. In the hose installation step, for example, the hoses (1a, 1b, 1c) wound in advance on a reel (not shown) are stretched while rotating the reel. First, the hose 1a is installed near the entrance of a building such as an underground mall or a building, and the hoses (1b, 1c) are stacked on the installed hose 1a in the order of the hose 1b and the hose 1c. Here, since the water stop length is long, when the required length of the hose exceeds 10 m, a connection fitting such as a fire hose fitting (not shown) is attached to the end of the hose (1a, 1b, 1c) in advance. Are attached and connected to each other to ensure the water stop length. In addition, the diameter of the connection fitting is equal to or less than the diameter of the hose so as not to interfere with the adjacent hoses when the tap water is expanded by inflating the hoses (1a, 1b, 1c) stacked in multiple stages. It is preferable. Furthermore, if this hose connection part is covered with a cover hose with a fastener or the like, the water stoppage is further improved.

  Next, a support member arrangement step is performed in which the hose support members (2, 2 ′) are arranged in the longitudinal direction of the hose 1 at a predetermined interval from a direction orthogonal to the longitudinal direction of the hose 1. In the support member arranging step, for example, the base portion 21a of the steel plate member 2a is inserted under the lowermost hose 1a, the steel plate member 2b is placed on the inserted base portion 21a, and the base portion 21a and the steel plate are placed. The base part 21b of the manufacturing member 2b is connected. The steel plate members (2′a, 2′b) are arranged at a predetermined interval with respect to the steel plate members (2a, 2b) in the same manner as the installation of the steel plate members (2a, 2b). To do. Here, for ease of work, it is preferable to perform the support member arranging step after the hose installing step, but the supporting member arranging step may be performed first, and then the hose installing step may be performed. Further, when the number of hoses to be stacked is large, the supporting member arranging step may be performed in the middle of the hose installation step in order to prevent the hoses stacked in multiple stages from collapsing.

  Next, a fluid filling process is performed in which tap water which is a fluid is filled into a plurality of hoses (1a, 1b, 1c) stacked in multiple stages. In the fluid filling process, for example, a pump is connected to the end of the fluid supply hose 31, and tap water is filled in the order of the hose 1a to the hose 1b and 1c. When the filling of tap water is completed, the valve provided in the hose (1a, 1b, 1c) is closed so that the pressure of the filled tap water can be maintained.

  Here, the pressure of the lowermost hose 1a filled with tap water is preferably set lower than the pressure of the other hoses (1b, 1c) filled with tap water. By lowering the pressure of the lowermost hose 1a, the hose 1a can be dented flexibly in the radial direction, and as a result, the hose lower surface follows the unevenness of the ground surface and the waterstop is improved. On the other hand, it is preferable to set the pressure of the upper hose (1b, 1c) higher than the pressure of the hose 1a than the lowermost hose 1a. By increasing the pressure of the hose (1b, 1c), the rigidity of the hose (1b, 1c) is increased, and the hose (1b, 1c) is hardly deformed by an external force. As a result, the hoses (1a, 1b, 1c) that are stacked in multiple stages and filled with tap water form a water-stop wall 51 that is rigid on the surface and are displaced from each other by the hose support members (2, 2 ′). Therefore, it does not hang down partly vertically. Further, the water blocking wall 51 is a wall that can sufficiently withstand the head pressure when the water volume increases.

  Since the water stop wall 51 composed of a plurality of constructed hoses (1a, 1b, 1c) is fixed by the hose support members (2, 2 '), it is easy to ensure a predetermined water stop height. Even if it is subjected to water pressure due to rainfall caused by heavy rains and torrential rains, it is difficult to collapse. In addition, since the plurality of hoses 1 are fixed by the hose support members (2, 2 ') in a state where they are stacked in multiple stages, even if they are used by stacking relatively small-diameter hoses, that is, they are relatively lightweight. An easy-to-handle hose can be used, and the water blocking wall 51 can be quickly constructed in an emergency such as a typhoon. In addition, as the fluid filled in the hose 1, well water, muddy water, or the like can be used.

  Next, the example which installed the water stop wall which concerns on this invention in order to prevent inundation of buildings, such as an underground mall and a building, is demonstrated. FIG. 2 is a view showing a state where the water blocking wall 51 of FIG. 1 is installed in the vicinity of the entrance 101 of the building.

  As shown in FIG. 2, the water blocking wall 51 according to the embodiment of the present invention shown in FIG. 1 is installed on the floor surface near the entrance 101 of the building where intrusion of muddy water is expected. The sandbag 3 or the like is appropriately sandwiched between the both end portions of the water blocking wall 51 and the wall portion of the building entrance 101 to improve water blocking. Note that the sandbag 3 is not necessarily required depending on the shape of the entrance of a building such as an underground mall or a building.

  FIG. 3 is a view showing a state in which a water blocking wall 51 ′ according to an embodiment of the present invention using the sandbag 3 as a hose support member is installed in the vicinity of the entrance of the building.

  As shown in FIG. 3, instead of the steel plate member 2 a (or 2 b) shown in FIG. 1, the sandbag 3 may be used as a hose support member that contacts the hose 1 from a direction orthogonal to the longitudinal direction of the hose 1. it can. In the present embodiment, the pillars 103 that support the roof 102 at the entrance of the building are also used to support the plurality of hoses 1 that form the water blocking walls 51 '. This is a means that can be adopted when dealing with an emergency where the steel plate members (2a, 2b) shown in FIG. As shown in FIG. 3, the plurality of hoses 1 are not necessarily arranged in a straight line. Depending on the water stop target, the water stop wall 51 ′ is formed by bending the hoses 1 and stacking them in multiple stages. It may be formed.

<Other embodiments of water blocking wall>
4 and 5 are schematic cross-sectional views showing water blocking walls (51a, 51b, 51c, 51d) according to other embodiments of the present invention. The water stop walls (51a, 51b, 51c, 51d) according to this embodiment shown in FIGS. 4A to 5B are all the same as the AA direction of the water stop wall 51 shown in FIG. A schematic cross section in the direction is shown.

  As shown in FIG. 4 (a), the water blocking wall 51a according to the present embodiment has a total of four stages in which the hose 1d is stacked on the hose 1c with respect to the water blocking wall 51 shown in FIG. ing. Furthermore, the water blocking wall 51a includes a rectangular sheet-like member 7 that covers the entire hose 1 from a direction orthogonal to the longitudinal direction of the hose 1 in a plurality of hoses 1 stacked in multiple stages. The sheet-like member 7 is formed using a warp and a warp made of polyester fiber in the same manner as the hose 1, but is not limited to this, for example, tarpaulin (manufactured by Dynic Co., Ltd.) or general vinyl A sheet or the like can also be used. Moreover, the length corresponding to the longitudinal direction of the hose 1 of the sheet-like member 7 shall be 10 m, and the width | variety of the sheet-like member 7 shall be the length which covers the four hoses 1 about 1 round. In addition, a water-absorbing polymer sheet 4 is installed under the lowermost hose 1a via a sheet-like member 7 to further improve the water-stopping property with the ground.

  By covering the four hoses 1 with the sheet-like member 7, the integrity of the water blocking walls 51a made up of the plurality of hoses 1 can be improved, and the water blocking walls are more difficult to collapse. Further, the water pressure is not directly applied between the four stacked hoses 1, and the sheet-like member 7 covering the hose 1 receives the water pressure on the surface. Thereby, the water stop of the water stop wall 51a can further be improved. The sheet-like member 7 is not easily detached because it is pressed by the weight of the four hoses 1 filled with tap water. Moreover, it is not always necessary to cover all four hoses 1.

  Next, the sheet | seat installation process which covers the several hose 1 piled up in multiple steps with the sheet-like member 7 from the direction orthogonal to the longitudinal direction of the hose 1 is demonstrated. Here, the water-absorbing polymer sheet 4 is previously set on the ground. And a sheet | seat installation process spreads the sheet-like member 7 on the ground partially including the water-absorbing polymer sheet 4 before performing the above-mentioned hose installation process and support member arrangement | positioning process. If the length of the sheet-like member 7 is shorter than the length of the hose 1, a plurality of sheet-like members while wrapping the end portions of the sheet-like member 7 in the direction in which the sheet-like member 7 is extended. 7 will be installed. If installation of the sheet-like member 7 is completed, a hose installation process is performed next. Here, the hose 1a is installed along the side edge portion of the sheet-like member 7 on the side orthogonal to the direction in which the sheet-like member 7 is extended, and the hoses 1b, 1c, and 1d are sequentially stacked thereon. Go. Then, a support member arrangement | positioning process is performed as mentioned above. In the support member arranging step, the base portion 21a of the steel plate member 2a is inserted under the sheet-like member 7. Thereafter, the four hoses 1 are covered with the sheet-like member 7, the fluid filling process is performed to expand the hose 1, and the hose 1 is brought into contact with the hose support member (2, 2 ′) via the sheet-like member 7. Let them fix tightly.

  Here, the left side of the water blocking wall 51a in the drawing is an inundation prevention target area such as an entrance of an underground mall, and the side edge portion of the sheet-like member 7 that is located under the hose 1a and arranged substantially parallel to the ground is The hose 1a on the inundation prevention target area side is arranged at the lower left in the figure. Thereby, when the water pressure is applied from the right side in the figure, the sheet-like member 7 below the hose 1a is prevented from being turned up.

  Next, the water blocking wall 51b shown in FIG. 4 (b) is a sheet-like member from the direction perpendicular to the longitudinal direction of the hose 1 in the same manner as the water blocking wall 51a shown in FIG. 4 (a). 7, the difference from the water blocking wall 51 a is that the sheet-like member 7 is passed between four hoses (1 a, 1 b, 1 c, 1 d), and the hose ( 1a, 1b, 1c, 1d). Thereby, the integrity of the water stop wall 51b which consists of the some hose 1 piled up in multiple steps is improved.

  Next, the water blocking wall 51c shown in FIG. 5A is that the reinforcing hose 5 having a smaller diameter than the hose 1 is attached to the sheet-like member 7 of the water blocking wall 51b shown in FIG. Different from the water blocking wall 51b. The reinforcing hose 5 is attached to both surfaces of the sheet-like member 7 so as to be sandwiched in a gap between hoses (1a, 1b, 1c, 1d) stacked in multiple stages and filled with tap water. The inside of the reinforcing hose 5 is filled with air or tap water. Thereby, collapse of the hose 1 stacked in multiple stages is further prevented, and the integrity of the water blocking wall 51c is further enhanced. Moreover, since the rolling of the hose (1b, 1c, 1d) which is filled with tap water during the fluid filling process and expands and increases in weight can be prevented, workability is also improved. Even if the reinforcing hose 5 is attached to only one surface of the sheet-like member 7, it contributes to the integrity of the water blocking wall 51c. Further, instead of the reinforcing hose 5, a polyvinyl chloride pipe or a rope having a relatively large diameter may be used.

  Next, as for the water stop wall 51d shown in FIG.5 (b), the water stop wall (51a, 51b, 51c) shown to Fig.4 (a)-FIG.5 (a) uses the sheet-like member 7. FIG. On the other hand, it differs from other embodiment by the point which uses the strip | belt-shaped band 6. FIG. As shown in FIG. 5 (b), the water blocking wall 51 d further includes a belt-like band 6 for fixing a plurality of hoses 1 stacked in multiple stages, and this band 6 is orthogonal to the longitudinal direction of the hose 1. It is suspended in the shape of the figure 8 around the hose (1a, 1b, 1c, 1d) from the direction to do. In the band installation process, first, one end E of the band 6 is inserted from the bottom of the lower hose 1a to the opposite side, and then is sewn between the hoses (1a, 1b, 1c, 1d) around the hose. Suspend in the shape of figure 8. Finally, one end E and the other end B of the band 6 are disposed below the hose 1a. The plurality of hoses 1 stacked in multiple stages are fixed to each other by the band 6, and the water blocking wall 51d is more difficult to collapse. Moreover, even if the hose 1 is damaged and tap water leaks from the inside of the hose, the hose 1 is less likely to be deformed by the restraining force of the band 6 even if the rigidity of the hose 1 is somewhat reduced. Further, since the band 6 has a relatively flat surface and is in surface contact with the hose 1, it is difficult to damage the hose 1.

  The band 6 may be suspended from the uppermost hose 1d side. Moreover, the band 6 does not necessarily have to be suspended around all the hoses (1a, 1b, 1c, 1d). A rope may be used instead of the belt-like band 6. Further, in order to further prevent the water blocking wall 51d from collapsing, a reinforcing hose 5 as shown in FIG. 5A may be further sandwiched between the hoses (1a, 1b, 1c, 1d). Good.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. .

It is a perspective view which shows the water stop wall which concerns on one Embodiment of this invention. It is a figure which shows the state which installed the water stop wall of FIG. 1 in the entrance vicinity of a building. It is a figure which shows the state which installed the water stop wall which concerns on one Embodiment of this invention using the sandbag as a hose support member in the entrance vicinity of a building. It is a schematic cross section which shows the water stop wall which concerns on other embodiment of this invention. It is a schematic cross section which shows the water stop wall which concerns on other embodiment of this invention.

Explanation of symbols

1: Hose 2: Hose support member (a pair of steel plate members)
6: Band 7: Sheet-like member 51: Water blocking wall

Claims (7)

Multiple hoses stacked in multiple stages,
A hose support member that comes into contact with the plurality of hoses stacked in multiple stages from a direction orthogonal to the longitudinal direction of the hose,
The water blocking wall is formed by stacking the plurality of hoses in multiple stages, arranging the hose support members at predetermined intervals in the longitudinal direction, and filling a fluid inside the hose.   The said hose support member consists of a pair of steel plate members that have a flat contact surface that comes into contact with the hose from both sides in a direction perpendicular to the longitudinal direction of the hose and are self-supporting. The water barrier described in 2.   It further comprises a band-like band for fixing the plurality of hoses stacked in multiple stages, and the band is suspended in a shape of figure 8 around the plurality of hoses from a direction orthogonal to the longitudinal direction. The water blocking wall according to claim 1 or 2.   A sheet-like member for covering the plurality of hoses stacked in multiple stages from a direction orthogonal to the longitudinal direction is further provided, and the plurality of hoses are covered with the sheet-like member. The water blocking wall according to any one of claims 1 to 3. Hose installation process to stack multiple hoses in multiple stages,
A support member arrangement step of arranging hose support members that contact the plurality of hoses from a direction orthogonal to the longitudinal direction of the hose at predetermined intervals in the longitudinal direction;
And a fluid filling step of filling the fluid into the plurality of hoses stacked in multiple stages.   A band installation step of suspending a band-shaped band for fixing the plurality of hoses in a shape of figure 8 around the plurality of hoses stacked in a multi-stage from a direction orthogonal to the longitudinal direction. The water blocking wall construction method according to claim 5, characterized in that it is characterized in that:   The water blocking wall according to claim 5 or 6, further comprising a sheet installation step of covering the plurality of hoses stacked in multiple stages with a sheet-like member from a direction orthogonal to the longitudinal direction. Construction method.

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