Waterstop material support system, waterstop device, support system installation method, and support system removal method

Abstract

To provide a waterstop material support system, a waterstop device, a support system burial method, and a support system removal method, which can withstand the water pressure that the waterstop material receives.SOLUTION: A support system 100 supports a waterstop material for preventing inundation. The support system 100 comprises a cylindrical body 10, rotary vanes 20, 30, a columnar support 40, and a lock pin 50. The cylindrical body 10 has an opening 12 at its top end. The rotary vanes 20, 30 are fixed on the cylindrical body 10. The rotary vanes 20, 30 generate a thrust in the direction to embed the cylindrical body 10 into the ground by the rotation of the cylindrical body 10. The columnar support 40 can be stored inside the cylindrical body 10 via the opening 12 and drawn upwards from the cylindrical body 10 via the opening 12. The lock pin 50 fixes the columnar support 40 drawn from the cylindrical body 10, on the cylindrical body 10.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a support device for a water-stopping material for preventing water intrusion, a water-stopping device, a method for installing the support device, and a method for removing the support device, for example. [Background technology]

[0002] Conventionally, as a measure against flooding in buildings, a method of blocking entrances and exits with water-stopping materials such as sandbags and waterstops has been known. When blocking an entrance and exit of a building with a water-stopping material, the opening area of ​​the entrance and exit is limited, and a reaction force for withstanding water pressure and supporting the water-stopping material can be obtained from the building. For this reason, the entrance and exit can be blocked with the water-stopping material.

[0003] When installing a water-stop material in an open area such as around a parking lot, as described in the prior art documents, the water-stop material is fixed to supports installed in the ground. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3237152 Summary of the Invention [Problem to be solved by the invention]

[0005] However, supports like those described in the prior art documents do not provide sufficient reaction force to withstand water pressure, and when the water level rises and the water pressure increases, the water-stopping material may not be able to withstand the water pressure, causing water to seep in.

[0006] An object of the present invention is to provide a support device, a water-stopping device, a method for installing the support device, and a method for removing the support device that are capable of withstanding the water pressure to which a water-stopping material is subjected. [Means for solving the problem]

[0007] According to one aspect, the support device has a support and a rotor. The support supports a water-stopping material. The rotor is fixed to the support. The rotor generates a propulsive force in a direction to install the support in the ground by rotation of the support. According to the support device of this aspect, the rotor that generates a propulsive force in a direction to install the support in the ground by rotation of the support receives pressure from the surrounding soil while the support is installed in the ground, so that the support can be fixed in the ground, the water-stopping material can withstand the water pressure, and there is no need to worry about the support falling over or being pulled out.

[0008] Furthermore, according to the support device of this aspect, the rotor has a portion that protrudes from the outer circumferential surface of the support in a direction intersecting the axial direction of the support, so that when the support device is installed in the ground, the rotor functions to prevent the support from being pulled out, and it is possible to prevent problems such as the support collapsing or being pulled out due to water pressure applied to the waterstop material supported by the support, and it is possible to fix the support device in the ground.

[0009] According to the support device of this aspect, the rotor is a plate-like blade inclined with respect to a plane perpendicular to the axial direction and is provided at the lower end of the support. By disposing the rotor at the lower end of the support device, the pressure acting on the rotor from the soil can be maximized, and the support can be fixed in the ground to prevent problems such as the support collapsing or being pulled out by the water pressure applied to the water-stopping material.

[0010] The support device of this aspect has a support, a cylindrical body, and a rotor. The support supports a water-stopping material. The cylindrical body can store the support inside and can pull the support upward. The rotor is fixed to the cylindrical body. The rotor generates a propulsive force in a direction to install the cylindrical body in the ground by rotating the cylindrical body. According to the support device of this aspect, the rotor that generates a propulsive force in a direction to install the cylindrical body in the ground by rotating the cylindrical body receives pressure from the surrounding soil when the cylindrical body is installed in the ground, so that the cylindrical body can be fixed in the ground, and there is no risk that the support pulled upward from the cylindrical body will fall or be pulled out by water pressure. The support device may have a fixing means for fixing the support to the cylindrical body in a state where it is pulled out from the cylindrical body.

[0011] Furthermore, the support device of this aspect has a lid that can liquid-tightly close the opening at the upper end of the cylindrical body when the support pole is stored and can open the opening. Therefore, when the support device is not in use, the support pole can be stored inside the cylindrical body and the opening can be liquid-tightly closed with the lid, eliminating the risk of rainwater entering the cylindrical body through the opening.

[0012] The waterstop device of this aspect includes a support device and a waterstop material. The support device includes a support body that supports the waterstop material, and a rotor that is fixed to the support body and generates a propulsive force in a direction to install the support body in the ground by rotation of the support body. According to the waterstop device of this aspect, the rotor that generates a propulsive force in a direction to install the support body in the ground by rotation of the support body receives pressure from the surrounding soil while the support body is installed in the ground, so that the support body can be fixed in the ground, the waterstop material can withstand the water pressure it receives, and there is no need to worry about the support body falling over or being pulled out.

[0013] In addition, according to the water-stopping device of this aspect, the support body is cylindrical, and the water-stopping material is a water-stopping sheet that can be stored inside the support body. As a result, when the water-stopping device is not in use, the water-stopping sheet can be stored inside the support body, and there is no need to store the water-stopping sheet separately from the support body, making it easier to manage the water-stopping sheet and reducing the risk of losing the water-stopping sheet.

[0014] The water-stopping device of this aspect includes a support device and a water-stopping material. The support device includes a support for supporting the water-stopping material, a cylindrical body capable of storing the support and pulling the support upward, and a rotor fixed to the cylindrical body and generating a propulsive force in a direction to install the cylindrical body in the ground by rotating the cylindrical body. According to the water-stopping device of this aspect, the rotor that generates a propulsive force in a direction to install the cylindrical body in the ground by rotating the cylindrical body receives pressure from the surrounding soil while the cylindrical body is installed in the ground, so that the cylindrical body can be fixed in the ground, and there is no need to worry about the support pulled upward from the cylindrical body falling over or being pulled out by water pressure.

[0015] When a support device having a support body for supporting a waterstop device and a rotor fixed to the support body is installed in the ground, the support body is rotated in a first direction, and the support body is installed in the ground by the propulsive force generated in the rotor by this rotation. As a result, earth pressure acts on the rotor of the support device installed in the ground, and the support body can be fixed in the ground.

[0016] When removing the support device from the ground, the support is rotated in a second direction opposite to that when the support device was installed, and the support device is pulled up from the ground by the propulsive force generated in the rotor by this rotation. This eliminates the need for a large-scale drive device for removing the support device from the ground, and allows the support device to be pulled up from the ground simply by rotating the support device in the second direction, allowing the support device to be removed in a short time and at low cost.

[0017] When a support device having a support post for supporting a water-stopping material, a cylindrical body capable of storing the support post therein and being pulled out upward, and a rotor fixed to the cylindrical body is installed in the ground, the cylindrical body is rotated in a first direction, and the cylindrical body is installed in the ground by the propulsive force generated in the rotor by this rotation. As a result, earth pressure acts on the rotor of the support device installed in the ground, and the cylindrical body can be fixed in the ground.

[0018] When removing the support device from the ground, the cylindrical body is rotated in a second direction opposite to that when the cylindrical body was installed, and the cylindrical body is pulled up from the ground by the propulsive force generated in the rotor by this rotation. This eliminates the need for a large-scale drive device for removing the support device from the ground, and allows the support device to be pulled up from the ground simply by rotating the cylindrical body in the second direction, allowing the support device to be removed in a short time and at low cost. Effect of the Invention

[0019] According to the present invention, it is possible to provide a support device, a water-stopping device, a method for installing the support device, and a method for removing the support device, which are capable of withstanding the water pressure to which the water-stopping material is subjected. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a schematic diagram showing a support device according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a view of the rotor of the support device of FIG. 1 as viewed from the direction of arrow F2. [Diagram 3] FIG. 3 is a view of the rotor of the support device of FIG. 1 as viewed from the direction of arrow F3. [Figure 4] 4(a) is a view of the main parts of the cylindrical body of the support device of FIG. 1, seen from the same direction as FIG. 1; FIG. 4(b) is a view of the main parts of FIG. 4(a), seen from the direction of arrow F4b; and FIG. 4(c) is a view of the main parts of FIG. 4(a), seen from the direction of arrow F4c. [Diagram 5] 5(a) is a view of one of the rotors of the support device of FIG. 1 as viewed from the direction of arrow F5a, and FIG. 5(b) is a view of the rotor of FIG. 5(a) as viewed from the direction of arrow F5b. [Figure 6] FIG. 6 is a diagram showing a state in which the support column of the support device of FIG. 1 is pulled out upward. [Figure 7] FIG. 7 is a diagram showing a waterproof sheet attached to the support pole of the support device of FIG. [Figure 8] FIG. 8 is a schematic diagram showing a water stopping device according to one embodiment of the present invention. [Figure 9]FIG. 9 is a schematic diagram showing a water stopping device according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in Fig. 1 to Fig. 6, a support device 100 according to one embodiment includes a cylinder 10 which is an example of a cylindrical body, two rotors 20, 30 fixed to the lower end side of the cylinder 10, a support 40 which can be stored inside the cylinder 10, and two fixing pins 50 which are an example of fixing means for fixing the support 40 pulled out upward from the cylinder 10 to the cylinder 10. An assembly in which the support 40 of this support device 100 is pulled out to the state shown in Fig. 6, the support 40 is fixed to the cylinder 10 by the two fixing pins 50, and the water-stopping sheet 200 shown in Fig. 7 is attached to the support 40 is an example of a water-stopping device. A water-stopping device 300 according to this embodiment is shown in Fig. 8.

[0022] The support device 100 is buried in soil G (hereinafter simply referred to as "underground") below the ground surface Gs with an imaginary center line passing through the center of the cylinder 10 aligned vertically. "Installation" in the claims includes "burial" in this embodiment in which substantially the entire cylinder 10 is buried in the ground, and also includes a state in which the entire cylinder 10 is buried in the ground.

[0023] In order to attach the fixing pin 50, the support device 100 has a part of its upper end protruding above the ground surface Gs when buried in the ground. In other words, when the support device 100 is buried in the ground, the upper end 11 of the cylindrical body 10 protrudes slightly above the ground surface Gs, and the lid body 60 is attached to the cylindrical body 10 so as to cover this upper end 11. Therefore, the support device 100 of this embodiment protrudes from the ground surface Gs by the thickness of the lid body 60.

[0024] 1 to 3 and 6, the vertical direction parallel to the center line of the cylinder 10 is indicated by the Z axis, and mutually orthogonal directions along a horizontal plane orthogonal to the Z axis are indicated by the X and Y axes. Note that FIG. 1 shows a state in which the support pillar 40 is stored in the storage space S of the cylinder 10 of the support device 100, and FIG. 6 shows a state in which the support pillar 40 is pulled out upward from the cylinder 10 of the support device 100. In the following description, the position in which the support pillar 40 is stored in the cylinder 10 as shown in FIG. 1 is referred to as the stored position, and the position in which the support pillar 40 is pulled out upward from the cylinder 10 as shown in FIG. 6 is referred to as the usage position.

[0025] The cylindrical body 10 of the support device 100 is, for example, a steel pipe, a stainless steel pipe, or a concrete pipe with a diameter of 200 to 600 mm and a length of 2000 mm or less. The cylindrical body 10 has a circular opening 12 inside its annular upper end 11. The lid body 60 and the opening 12 are provided with a sealing structure such as a tapered thread, a packing, an inner lid, a catch clip type, a lever band type, or the like, as a structure for liquid-tightly closing the opening 12. The lid body 60 opens and closes the opening 12 of the cylindrical body 10.

[0026] The two rotors 20, 30 liquid-tightly close the axial lower end side of the cylinder 10 without any gaps. The two rotors 20, 30 are fixed to the lower end side of the cylinder 10 by, for example, welding. The two rotors 20, 30 function as a bottom portion that closes the axial lower end side of the storage space S inside the cylinder 10. Each rotor 20, 30 is, for example, a substantially semicircular steel plate with a diameter of 1200 mm or less and a thickness of 16 to 50 mm.

[0027] The support 40 has a shape and size that allows it to be stored in the cylindrical body 10. The support 40 has a cylindrical shape with a bottom, and is formed from, for example, a steel pipe, a stainless steel pipe, or a concrete pipe. The support 40 has a circular insertion opening 42 on the inside of its annular upper end 41. The insertion opening 42 is closed by a cap 70. For example, a water stop sheet 200 is stored inside the support 40.

[0028] As shown in Fig. 4, the cylinder 10 has two inclined end faces 14, 16 at its lower end side for respectively fixing the two rotors 20, 30. The two inclined end faces 14, 16 are not a single flat surface of an annular shape obtained by cutting the cylinder 10 along an XY plane perpendicular to its center line, but are surfaces obtained by dividing the lower end face of the cylinder 10 in two in the Y-axis direction and inclining in different directions at the same angle in the X-axis direction. Therefore, at both ends of the two inclined end faces 14, 16 in the circumferential direction, there is a step portion 15 where the ends of the two inclined end faces 14, 16 are offset from each other in the Z-axis direction.

[0029] One inclined end face 14 is a surface obtained by dividing the lower end face of the cylinder 10 in half in the Y-axis direction into one semicircular annular surface, which is inclined at a predetermined angle in the X-axis direction with respect to the XY plane, and is a surface to which one rotor 20 is attached. The other inclined end face 16 is a surface obtained by dividing the tip face of the cylinder 10 in half in the Y-axis direction into the other semicircular annular surface, which is inclined at the same angle in the opposite direction to the X-axis direction with respect to the XY plane, and is a surface to which the other rotor 30 is attached. The inclination angle of the inclined end faces 14 and 16 in the X-axis direction with respect to the XY plane, i.e., the inclination angle of the two rotors 20 and 30 with respect to the XY plane, is, for example, 5 to 15 degrees, and preferably 10 degrees.

[0030] In this embodiment, a case will be described in which two inclined end faces 14, 16 for fixing two rotors 20, 30 are provided on the lower end side of the cylindrical body 10, but for example, three or more inclined end faces may be provided on the lower end side of the cylindrical body 10. For example, when fixing three rotors to the cylindrical body 10, three inclined end faces may be provided on the lower end side of the cylindrical body 10. In other words, when three or more rotors are provided, the number of inclined end faces may be increased according to the number of rotors.

[0031] The two rotors 20, 30 have substantially the same shape. Therefore, here, the structure of one of the rotors 20 will be described, and a detailed description of the other rotor 30 will be omitted. 5, rotor 20 has, along its outer periphery, a straight edge 21 equivalent to the diameter of a semicircle, an edge 23 equivalent to an arc of a semicircle continuing to edge 21 via a corner 22 at one end of edge 21, and a straight edge 25 continuing to edge 23 via a corner 24 at an end opposite corner 22 of edge 23. The end of edge 25 opposite corner 24 is connected to the other end of edge 21 via corner 26. In other words, rotor 20 has a cutout 27 in a shape in which a part of a semicircular steel plate is cut out at edge 25.

[0032] Edge 25 with cutout 27 formed therein extends linearly between one end 140a (a portion overlapping the lower end of inclined end face 14 in the inclined direction) of annular region 14a where rotor 20 overlaps inclined end face 14 of cylinder 10 and corner 24. Edge 25 may be inclined toward cutout 27 from rear surface 20b toward front surface 20a of rotor 20. In this embodiment, cutout 27 is provided on the lower end side of rotor 20 in the inclined direction, but a cutout may also be provided on the upper end side in the inclined direction. The other rotor 30 has three edges 31, 32, 33 of the same shape along its outer periphery and has cutout 37 on the lower end side in the inclined direction.

[0033] When the rotor 20 is fixed to the cylinder 10, the center of the semicircle of the rotor 20 is aligned with the center line of the cylinder 10, the edge 21 of the rotor 20 is abutted against the step 15 of the cylinder 10, and the back surface 20b of the rotor 20 is brought into contact with the inclined end surface 14, thereby positioning the rotor 20 with respect to the cylinder 10. In this state, the outer peripheral surface 10a on the radially outer side of the inclined end surface 14 of the cylinder 10 is fixed to the back surface 20b of the rotor 20 by welding, and the inner peripheral surface 10b on the radially inner side of the inclined end surface 14 of the cylinder 10 is fixed to the back surface 20b of the rotor 20 by welding. When welding the inner peripheral surface 10b of the cylinder 10 to the back surface 20b of the rotor 20, the storage space S is accessed through the opening 12 of the cylinder 10.

[0034] Thereafter, the other rotor 30 is fixed to the cylinder 10. In this case, the center of the semicircle of the rotor 30 is aligned with the center line of the cylinder 10, the edge 31 of the rotor 30 is abutted against the edge 21 of the rotor 20 and the step 15 of the cylinder 10, and the back surface 30b of the rotor 30 is brought into contact with the inclined end face 16, so that the rotor 30 is positioned relative to the cylinder 10. In this state, the outer peripheral surface 10a on the radially outer side of the inclined end face 16 of the cylinder 10 and the back surface 30b of the rotor 30 are fixed by welding, the inner peripheral surface 10b on the radially inner side of the inclined end face 16 of the cylinder 10 and the back surface 30b of the rotor 30 are fixed by welding, and parts of the edges 21, 31 of the rotors 20, 30 that come into contact at the center of the cylinder 10 are welded. When welding the inner peripheral surface 10b of the cylindrical body 10 and the rear surface 30b of the rotor blade 30, the inside of the storage space S is accessed through the opening 12 of the cylindrical body 10.

[0035] If the length of the cylinder 10 is long and welding of the rotors 20, 30 is difficult, the rotors 20, 30 may be welded to a short cylinder, and then the short cylinder may be welded to another cylinder, thereby making the cylinder 10 to the desired length.

[0036] When the two rotors 20, 30 are fixed to the cylindrical body 10 in this manner, the lower end side of the cylindrical body 10 is liquid-tightly sealed. This allows a storage space S to be provided inside the cylindrical body 10. The storage space S can be accessed through the opening 12 by removing the lid 60 provided on the upper end 11 of the cylindrical body 10. A support 40 is stored and arranged within the storage space S.

[0037] The support pillar 40 has a cylindrical shape with a bottom and an outer diameter slightly smaller than the inner peripheral surface 10b of the cylinder 10. The axial length of the support pillar 40 is a length that allows the upper end 41 of the support pillar 40 to be positioned at a position at least lower than the upper end 11 of the cylinder 10 when the support pillar 40 is stored in the storage space S of the cylinder 10. By making the support pillar 40 have such a length, the opening 12 of the cylinder 10 can be closed with the lid 60 when the support pillar 40 is stored in the storage space S of the cylinder 10.

[0038] A circular insertion opening 42 is provided on the inside of the upper end 41 of the support 40. A female screw is cut on the inner peripheral surface of the support 40 near the insertion opening 42. The cap 70 has a male screw that screws into the female screw of the support 40. The insertion opening 42 can be closed by screwing the cap 70 onto the upper end 41 of the support 40. Any fixing structure of the cap 70 to the support 40 may be used. The cap 70 has a substantially circular plate shape, and its outer diameter is the same as that of the support 40. With the cap 70 removed from the insertion opening 42, the water stop sheet 200 of FIG. 7 can be stored in the support 40 through the insertion opening 42. When the water stop sheet 200 is stored in the support 40, the water stop sheet 200 is rolled up and inserted into the support 40 through the insertion opening 42. The space inside the support 40 has an axial length that allows the rolled water stop sheet 200 to be stored.

[0039] The fixing pin 50 fixes the support 40 to the cylinder 10 when the support 40 is pulled upward to the use position shown in Fig. 6. When the support 40 is placed in the use position, a part of its lower end is inserted into the storage space S of the cylinder 10 by a sufficient length so that the support 40 is stably held by the cylinder 10. The length of the support 40 inserted into the cylinder 10 is set according to the water pressure, the area of ​​the waterstop sheet 200, and the thickness and material of the steel material constituting the cylinder 10 and the support 40. If the axial length of the overlapping portion of the cylinder 10 and the support 40 is short, the connection state becomes unstable, so it is desirable to ensure that the length of the support 40 inserted into the cylinder 10 is approximately the diameter of the support 40.

[0040] Two pin holes 13 for inserting fixing pins 50 are provided near the upper end 11 of the cylindrical body 10. The two pin holes 13 are provided in a portion of the cylindrical body 10 of the support device 100 buried in the ground that protrudes from the ground surface Gs. The two pin holes 13 are located, for example, at positions opposite each other in the radial direction of the cylindrical body 10.

[0041] In contrast, the support pillar 40 has two pin holes 43 that overlap with the two pin holes 13 of the cylinder 10 when it is pulled out upward to the usage position shown in Fig. 6. The support pillar 40 can be fixed in the usage position by inserting fixing pins 50 into each of the two sets of pin holes 13, 43 that overlap when the support pillar is pulled out to the usage position.

[0042] As a fixing means for fixing the support 40 at the use position, a fixing means other than the fixing pin 50 described above may be used. For example, a male screw may be provided on the outer peripheral surface of the support 40 to screw into a female screw provided on the inner peripheral surface near the upper end 11 of the cylinder 10 by slightly rotating the support 40 when it is pulled out upward. By adopting a structure in which the support 40 is fixed to the cylinder 10 at the use position by screwing in this way, it is not necessary to make the upper end 11 of the cylinder 10 protrude upward from the ground surface Gs when the support device 100 is buried in the ground, and the lid for sealing the opening 12 at the upper end 11 of the cylinder 10 can also be provided at the same level as the ground surface Gs.

[0043] The above-mentioned support devices 100 are buried in the ground at a pitch that matches the width of the waterstop sheet 200. In other words, the installation interval between two adjacent support devices 100 is set so that the waterstop sheet 200 is stretched in the width direction with the support pole 40 of one support device 100 inserted into the sleeve 201 on the left side of the waterstop sheet 200 in the figure, and the support pole 40 of the other support device 100 inserted into the sleeves 202, 203 on the right side of the waterstop sheet 200 in the figure. Note that multiple types of waterstop sheets with different width lengths may be manufactured, and a waterstop sheet with a length according to the application may be selected. In this case, the installation interval of the support devices 100 may be adjusted according to the width length of the selected waterstop sheet.

[0044] The support device 100 described above can be assembled simply by fixing the two rotors 20, 30 to the lower end side of the cylinder 10, storing and arranging the support 40 in the storage space S inside the cylinder 10, and closing the opening 12 on the upper end side of the cylinder 10 with the lid 60, and the two rotors 20, 30 can also be used as a bottom that defines the lower end of the storage space S, reducing the number of parts and the number of steps in the assembly work, making it easy to position the members relative to each other and allowing for simple assembly in a short time. Furthermore, if the support device 100 is small, the cylinder 10 and the two rotors 20, 30 can be cast as a single unit.

[0045] Moreover, the rotors 20, 30 can be formed simply by shaping flat steel plates, and bending of the steel plates is not required, and the mechanical strength can be easily adjusted simply by adjusting the thickness. Moreover, since the cylinder 10 has the inclined end faces 14, 16 and the step portion 15 for mounting the two rotors 20, 30, it is easy to align the two rotors 20, 30 with respect to the cylinder 10, and no jigs or the like are required for aligning the rotors 20, 30, making assembly easy.

[0046] As shown in Fig. 7, the water-stopping sheet 200 is formed in a substantially rectangular shape, and has sleeves 201, 202, 203 at both ends in the width direction (left-right direction in the figure) through which the support poles 40 can be inserted. The number of sleeves can be set as desired. In order to attach the ends of two water-stopping sheets 200 to one support pole 40, the sleeves are positioned in the up-down direction so as not to overlap in the width direction of the water-stopping sheet 200. The attachment structure of the water-stopping sheet 200 to the support pole 40 is not limited to the structure of this embodiment, and other attachment structures may be used.

[0047] The water stop sheet 200 may be formed from a flexible material that can be rolled up and stored inside the support 40, and may be formed from a material that is strong enough to withstand a predetermined water pressure and is impermeable to water. The water stop sheet 200 may be formed from, for example, a polyvinyl chloride sheet, a polyethylene sheet, a nylon sheet, or a cloth coated with nylon, polyethylene, or the like. The length of the water stop sheet 200 in the vertical direction shown in the figure may be approximately the same as the height from the ground surface Gs to the upper end 41 of the support 40 when the support 40 is fixed and disposed in the usage position.

[0048] The waterproof sheet 200 is not fixed to the support 40 at the sleeveless portions at both ends in the width direction, so a string or a hook may be provided to fix these portions to the support 40. The waterproof sheet 200 may also have an excess length portion that allows the waterproof sheet to be laid on the ground surface Gs to eliminate the gap with the ground surface Gs.

[0049] A method for burying the support device 100 having the above-mentioned structure in the ground will be described below. As described above, the support device 100 has a structure in which the rotors 20, 30 with a diameter of 1200 mm or less are fixed to the lower end of the cylindrical body 10 with a diameter of 200 to 600 mm and a length of 2000 mm or less. Therefore, for example, the support device 100 can be buried in the ground using a small driving device mounted on a vehicle. Examples of small driving devices that can be mounted on a vehicle include a device in which a suspended auger is attached to a rough terrain crane and a steel pipe rotary press-in machine. Furthermore, for example, a smaller support device 100 in which the rotors 20, 30 with a diameter of 800 mm or less are fixed to the lower end of the cylindrical body 10 with a diameter of 400 mm or less can be buried in the ground using a device in which a suspended auger is attached to a UNIC vehicle.

[0050] When burying the support device 100 in the ground, first, the support device 100 is attached to the above-mentioned driving device, and the support device 100 is arranged perpendicular to the ground surface Gs with the two rotors 20 and 30 facing the ground surface Gs. In this state, the support device 100 is rotated in a clockwise direction (first direction) toward the ground surface Gs and brought into contact with the ground surface Gs.

[0051] When the support device 100 is rotated and brought into contact with the ground surface Gs, the two rotors 20, 30 dig into the soil, and the excavated soil moves from the front surfaces 20a, 30a of the rotors 20, 30 to the rear surfaces 20b, 30b of the rotors 20, 30 through the cutouts 27, 37, and the excavated soil is pushed upward by the inclination of the rotors 20, 30. This provides the support device 100 with a propulsive force to dig into the soil.

[0052] 1, the rotation of the support device 100 by the drive device is stopped, and the support device 100 is removed from the drive device. This causes the support device 100 to be buried in the ground.

[0053] In this state, the two rotors 20, 30 of the support device 100 are placed at the deepest position in the ground and receive pressure from the surrounding soil. In other words, when the support device 100 is buried to a predetermined depth in the ground as described above, the rotors 20, 30 receive pressure from the soil on their front surfaces 20a, 30a and back surfaces 20b, 30b, and are almost unable to move vertically up and down.

[0054] In contrast, when removing the support device 100, the support device 100 can be easily pulled up from the ground by simply connecting the support device 100 to a driving device and rotating it in the opposite direction (second direction) to that used when buried. In this case, a reaction force is applied from the soil to the surfaces 20a, 30a of the two rotors 20, 30, generating a propulsive force in a direction that pulls the support device 100 upward. For this reason, the driving device only needs to rotate the support device 100 in the opposite direction to that used when buried, and does not need to apply a force in a direction that pulls the support device 100 upward.

[0055] As described above, according to this embodiment, the support device 100 can be buried in the ground using a small driving device, and can also be removed from the ground using a small driving device. Therefore, even in a small place such as a corner of an apartment building or a park, the support device 100 can be buried in the ground and can also be removed.

[0056] It is recommended that the depth of the rotors 20, 30 in the ground be about six times the rotation radius of the rotors. This allows the rotors to be stably and effectively fixed, achieving strong force transmission. For example, if the rotors 20, 30 are roughly semicircular with a radius of 200 mm, the support device 100 is installed so that the rotors are 1200 mm deep in the ground.

[0057] When using a waterproof device including the above-described support device 100 and waterproof sheet 200, the waterproof device is assembled as follows. The support devices 100 are assumed to be buried in the ground at regular intervals so as to surround an area to be protected from flooding, for example, as a flood prevention measure for a parking lot, etc. The regular intervals referred to here are intervals that correspond to the width of the water stop sheet 200.

[0058] When using the water-stopping device, first, the lids 60 of all the support devices 100 are removed, and the cylinders 10 are pulled out to their usage position. Then, the pin holes 13 of the cylinders 10 are aligned with the pin holes 43 of the posts 4, and the fixing pins 50 are inserted. Thereafter, the caps 70 of the cylinders 10 are removed, and the water-stopping sheet 200 is taken out from inside the cylinders 10, and the water-stopping sheet 200 is attached between the adjacent posts 40. At this time, to the post 40 to which one end in the width direction of the water-stopping sheet 200 is attached, one end of another water-stopping sheet 200 is also attached on the opposite side of the post 40 sandwiched therebetween.

[0059] As described above, the water stop device (support device 100 and water stop sheet 200) of this embodiment can be started for use simply by pulling out the support poles 40 from the cylindrical body 10 of the support device 100 buried in the ground and attaching the water stop sheet 200, and can be easily assembled for use in a short time. Therefore, in an emergency such as when a nearby river floods, even a person without specialized knowledge can easily and quickly put the water stop device into operation, and flooding can be reliably prevented.

[0060] The present invention is not limited to the above-described embodiment, and various modifications can be made in the implementation stage without departing from the gist of the invention. The above-described embodiment includes various inventions, and various inventions can be extracted by combinations selected from the multiple components disclosed. For example, if the problem can be solved and an effect can be obtained even if some components are deleted from all the components shown in the present embodiment, the configuration from which the components are deleted can be extracted as an invention.

[0061] For example, in the above embodiment, the rotors 20, 30 are provided with the cutouts 27, 37, but a roughly semicircular rotor without a cutout may be used, and the present invention can be applied to a support device equipped with such a rotor. Also, the shape of the rotors 20, 30 is not limited to a flat plate shape, and may be, for example, a bowl shape.

[0062] Furthermore, if a gap including the step portion 15 of the cylinder 10 occurs along the X-axis direction due to the combination of the inclination angle of the rotors 20, 30 and the thickness of the rotors, a closing plate may be provided in the gap.

[0063] In the above embodiment, the waterstop sheet 200 is used as a waterstop material attached to the support device 100 to prevent water intrusion, but the waterstop material may be a sandbag or a waterstop plate. For example, when a waterstop plate is used, the waterstop plate is placed between the two support devices 100, and both ends in the width direction of the waterstop plate are fixed to the supports 40 of the two support devices 100, respectively.

[0064] In the above embodiment, the water stop sheet 200 is wound in a roll and stored in the support 40, and when in use, the water stop sheet 200 is removed through the insertion opening 42 of the support 40. However, the present invention is not limited to this, and for example, a slit extending in the axial direction may be provided in the support 40, and the rolled water stop sheet may be pulled out through this slit. Alternatively, the water stop sheet may be stored in the storage space S of the cylinder 10 with the water stop sheet wrapped around the outside of the support 40.

[0065] In the above embodiment, an example has been described in which the support 40 for attaching the water stop sheet 200 is stored within the storage space S of the cylinder 10, but the present invention is not limited to this. The support 40 may be stored separately from the cylinder 10, and inserted and fixed through the opening 12 when in use. Even in this case, there is no need to worry about the support 40 falling over or being pulled out, since the rotors 20, 30 fixed to the cylinder 10 function as anchors in the ground.

[0066] In addition, in a simpler water stop device, the pin hole 43 provided in the support 40 may be omitted, and after the support 40 is pulled out to the usage position, the lower end of the support 40 may be supported from below by a fixed pin 50 inserted into the pin hole 13 of the cylinder 10.

[0067] 9, a water stop device 400 may be used in which the above-mentioned two rotors 20, 30 are attached to a support device 420 having a rectangular water stop plate 430 fixed thereto. In this case, a part of the lower end side of the support body 410 is buried in the ground, and the upper end side is made to protrude from the ground surface, and the water stop plate 430 is fixed to this protruding part. [Explanation of symbols]

[0068] 10...cylinder, 12...opening, 13...pin hole, 14, 16...inclined end surface, 15...step portion, 20, 30...rotor, 20a, 30a...surface, 20b, 30b...back surface, 21, 23, 25...edge portion, 31, 33, 35...edge portion, 40...support, 42...insertion port, 50...fixing pin, 60...lid body, 70...cap, 27, 37...cutout portion, 100...support device, 200...waterstop sheet, Gs...ground surface, S...storage space.

Claims

1. A support body for supporting the water-stopping material; A rotor fixed to the support and generating a propulsive force in a direction to install the support in the ground by rotation of the support; A support device having:

2. The rotor has a portion protruding from an outer circumferential surface of the support in a direction intersecting an axial direction of the support. The support device of claim 1 .

3. The rotor is a plate-like member inclined with respect to a plane perpendicular to the axial direction and is provided at a lower end of the support. The support device of claim 2.

4. A support for supporting the water-stopping material; a cylindrical body capable of storing the support rod therein and allowing the support rod to be pulled out upward; A rotor fixed to the cylindrical body and generating a propulsive force in a direction to place the cylindrical body in the ground by rotation of the cylindrical body; A support device having:

5. A fixing means is provided for fixing the support to the cylindrical body in a state where the support is pulled out from the cylindrical body.

5. The support device of claim 4.

6. a lid capable of liquid-tightly closing an opening at the upper end of the cylindrical body when the support column is stored and opening the opening, 5. The support device of claim 4.

7. A supporting device according to claim 1 ; The water-stopping material supported by the support body; A water-stopping device having the same.

8. The support is cylindrical, The water-stopping material is a water-stopping sheet that can be stored inside the support body. The water stop device according to claim 7.

9. A supporting device according to claim 4; A water-stopping material supported by the support pillars; A water-stopping device having the same.

10. The support is cylindrical, The water-stopping material is a water-stopping sheet that can be stored inside the support. The water stop device according to claim 9.

11. The support of the support device according to claim 1 is rotated in a first direction, and the support is placed in the ground by a thrust force generated in the rotor by the rotation. How to install the support device.

12. The cylindrical body of the support device according to claim 4 is rotated in a first direction, and the cylindrical body is placed in the ground by a propulsive force generated in the rotor by the rotation. How to install the support device.

13. The support of the support device according to claim 1 in a state where the support is installed in the ground is rotated in a second direction opposite to that in the case of installing the support, and the support is pulled up from the ground by a propulsive force generated in the rotor by this rotation. How to remove the support device.

14. The cylindrical body of the support device according to claim 4 in a state where the cylindrical body is installed in the ground is rotated in a second direction opposite to that in the case of installation, and the cylindrical body is pulled up from the ground by a propulsive force generated in the rotor by this rotation. How to remove the support device.

Images