JP7116586B2 - Installation method of sloping gate - Google Patents

Description

The present application relates to an undulating gate and method of installation thereof.

For example, Patent Document 1 discloses an undulating gate (flap gate) for preventing inundation due to floods and tsunamis. This hoisting gate includes a support portion and a door body whose base end is rotatably supported by the support portion. In the undulating gate, the door body is in contact with the foundation ground and lays down normally, and in an emergency (when flooded), the door body rotates and stands up.

Japanese Patent No. 5580785

By the way, the foundation ground on which the door is grounded when lodging is generally made of concrete, and the surface is generally uneven to some extent. Therefore, when the door body rotates, the lower surface of the base end side of the door body may come into contact with the foundation ground and the rotation movement may be hindered. In this case, it is necessary to remove the convex portion on the surface of the foundation ground so that the lower surface of the door body does not come into contact with the foundation ground when the door body rotates. Therefore, it takes a lot of time and effort to install the undulating gate.

The technology disclosed in the present application has been made in view of such circumstances, and its purpose is to install an undulating gate so as to ensure the pivoting motion of the door even if it is a simple construction. .

The technology disclosed in the present application relates to a method for installing a hoisting gate, which includes a support portion and a door body whose base end is rotatably supported by the support portion and which is rotatably erected from a fallen state. . The installation method of the undulating gate of the present application includes a surface forming process, a temporary placement process, and a fixing process. The surface forming step is a step of forming a contact surface between the support portion and the door, with which the lower surface of the door is grounded when the door is laid down. The temporary placement step is a step of temporarily placing the door body on the ground plane by grounding the lower surface of the door body on the ground plane while the support portion and the door body are connected. The fixing step is a step of fixing the support portion while the door is temporarily placed on the ground surface.

Another technology disclosed in the present application relates to an installation structure for a hoisting gate, which includes a support portion and a door body whose base end is rotatably supported by the support portion and which is rotatably erected from a fallen state. is. The undulating gate installation structure of the present application comprises a grounding portion and a fixed portion. The grounding portion has a grounding surface on which the lower surface of the door of the supporting portion and the door is grounded when the door is laid down. The fixing part connects the support part and the door body, and fixes the support part in a state in which the lower surface of the door body is grounded on the ground surface.

According to the installation method and installation structure of the hoisting gate of the present application, the hoisting gate can be installed so as to ensure the pivoting motion of the door even with a simple construction.

FIG. 1 is a side view showing a schematic configuration of an undulating gate according to an embodiment when it is laid down. FIG. 2 is a plan view showing a schematic configuration of the undulating gate according to the embodiment when it is laid down. FIG. 3 is a diagram showing one state of the surface forming process of the installation method according to the embodiment. FIG. 4 is a diagram showing one state of the surface forming process of the installation method according to the embodiment. FIG. 5 is a diagram showing a temporary placement process and an adjustment process of the installation method according to the embodiment. FIG. 6 is a diagram showing the first placing step of the installation method according to the embodiment. FIG. 7 is a diagram showing one state of the fixing process of the installation method according to the embodiment. FIG. 8 is a diagram showing one state of the fixing process of the installation method according to the embodiment. FIG. 9 is a diagram showing a second placing step of the installation method according to the embodiment. FIG. 10 is a diagram showing a surface forming step of an installation method according to a modification of the embodiment. FIG. 11 is a diagram showing a temporary placement step and a fixing step of an installation method according to a modification of the embodiment.

Hereinafter, embodiments of the present application will be described with reference to the drawings. The following embodiments are essentially preferred examples, and are not intended to limit the scope of the technology disclosed in the present application, its applications, or its uses.

The undulating gate 1 of this embodiment is installed on a road surface R (land) and prevents water from entering living spaces and underground spaces due to floods, tsunamis, and heavy rain. The hoisting gate 1 is a floating hoisting gate (also called a floating flap gate) that automatically raises and lowers using water that is about to enter. As shown in FIGS. 1 and 2, the hoisting gate 1 includes a door 10, a support portion 16, a connecting member 18, a grounding portion 20, and a fixing portion 30. As shown in FIG.

The door 10 is formed in a substantially rectangular shape. The base end 12 of the door body 10 is rotatably supported by the support portion 16, and the door body 10 is rotated about the rotation axis X from the fallen state so that the tip 11 side stands up. That is, as indicated by the arrow in FIG. 1, the hoisting gate 1 rotates clockwise to perform a standing motion, and rotates counterclockwise to perform a laying motion. The door body 10 is normally laid down (indicated by a solid line in FIG. 1), and in an emergency (that is, when water enters), it is rotated from the laid-down state by the buoyancy of the infiltrating water. It is configured to be in an upright state (the state indicated by the two-dot chain line in FIG. 1). In the laid down state, the rotation axis X is provided at a position downstream of the downstream end of the lower surface 14 of the door 10 in the upstream/downstream direction or at the same position as the downstream end.

In addition, in FIG. 1, it is assumed that water enters from the left side. Further, the terms "upstream side" and "downstream side" described hereinafter mean the upstream side (left side in FIG. 1) and the downstream side (right side in FIG. 1) in the water intrusion direction.

The support portions 16 are formed in a substantially box shape, and are provided in plurality (three in this embodiment) at intervals in the width direction of the door 10 . The connecting member 18 connects and integrates the three support portions 16 with each other. The connecting member 18 is provided at the downstream end of each supporting portion 16 and extends generally across the width of the door 10 . In the present embodiment, channel steel (so-called channel steel) is used as the connecting member 18, but other shaped steel such as a flat plate may be used.

The door 10 and the support portion 16 are provided in the storage portion S. As shown in FIG. The storage portion S is a concave portion formed in the road surface R, and stores the door body 10 when it is laid down. When the door 10 is stored in the storage portion S, ie, when the door 10 is laid down, the lower surface 14 of the door 10 is in contact with the ground surface 25 of the ground portion 20 described later, while the upper surface 13 of the door 10 is grounded. becomes flush with the road surface R (that is, the same height. The same applies hereinafter). In other words, vehicles and people traveling on the road surface R normally pass on the upper surface 13 of the door member 10 .

As described above, the grounding portion 20 has the grounding surface 25 on which the lower surface 14 of the door 10 of the door 10 and the support portion 16 is grounded when the door 10 is laid down. Specifically, the ground portion 20 has an anchor bolt 21 , an adjustment nut 22 , a support beam 23 , a panel 24 and an adjustment bolt 26 .

The support girder 23 is provided at a predetermined height from the base concrete B, which is the bottom of the storage section S, and extends in the upstream and downstream directions. A plurality of support beams 23 (eight in this embodiment) are provided at intervals in the width direction of the door 10 . Thus, the plurality of support beams 23 are arranged in the horizontal direction. More specifically, an adjusting nut 22 is inserted into an anchor bolt 21 laid in the foundation concrete B, and a support beam 23 is inserted thereon. The support girder 23 is supported at a predetermined height by the adjusting nut 22 . In other words, the adjusting nut 22 is an adjusting mechanism that adjusts the height of the support girder 23 by changing the height of the adjusting nut 22 itself. In this embodiment, angle steel (so-called angle steel) is used as the support girder 23, but other shaped steel materials may be used.

The panel 24 is a rectangular concrete panel having a constant thickness. A plurality of panels 24 are arranged on the upper surface of the support girder 23 and provided across the support girder 23 and the support girder 23 . The upper surfaces of the plurality of panels 24 arranged in this way constitute the above-mentioned ground plane 25 which is a flat surface, and are flush with each other. The panel 24 is arranged in an area corresponding to substantially the entire lower surface 14 of the door 10 . Since the concrete panel is a ready-made product, it is easy to secure a constant thickness and flatness. In this embodiment, a concrete panel is used as the panel 24, but other materials may be used as long as the top surface is flat and a constant thickness can be secured.

The adjustment bolts 26 are attached to the support beams 23 . The adjustment bolt 26 is inserted from below into one side of the support beam 23 on which the panel 24 is arranged. The adjustment bolt 26 pushes up the panel 24 directly by screwing it upward. The adjusting bolts 26 are provided at a plurality of locations on one panel 24 and can partially and individually push up the panel 24 . The adjustment bolt 26 is an adjustment mechanism that adjusts the height of the panel 24 (the height of the ground plane 25) in order to ensure the necessary degree of contact (ground contact) between the ground plane 25 and the lower surface 14 of the door 10. .

The fixing portion 30 fixes the support portion 16 and the connecting member 18 . More specifically, the fixing portion 30 fixes the support portion 16 and the connecting member 18 in a state in which the lower surface 14 of the door 10 to which the support portion 16 is connected is grounded on the ground surface 25 of the ground portion 20 . Specifically, the fixing portion 30 has anchor bolts 31 and 35 , adjusting nuts 32 and 36 , fixing nuts 33 and 37 and a base plate 34 .

The base plate 34 is provided at a predetermined height from the base concrete B that is the bottom of the storage section S, and the support section 16 is arranged on the upper surface and is coupled to the support section 16 by bolts. A plurality of base plates 34 (three, which is the same number as the support portions 16 ) are provided at intervals in the width direction of the door 10 . More specifically, an adjusting nut 32, a base plate 34, a support portion 16, and a fixing nut 33 are inserted in order into an anchor bolt 31 laid in the foundation concrete B. As shown in FIG. The support portion 16 and the base plate 34 are fixed by being sandwiched between the adjusting nut 32 and the fixing nut 33 . Similarly, the connecting member 18 is inserted into the anchor bolt 35 and is clamped and fixed by the upper and lower adjusting nuts 36 and fixing nuts 37 . The adjustment nuts 32 and 36 are adjustment mechanisms that adjust the arrangement heights of the support portion 16 and the connecting member 18 by changing their own arrangement heights.

<Method of installing undulating gates>
A method of installing the hoisting gate 1 will be described with reference to FIGS. 3 to 9. FIG. The installation method of the undulating gate 1 includes a surface forming process, a temporary placing process, an adjusting process, a fixing process, and a placing process (first placing process and second placing process).

First, a surface forming step is performed. The surface forming step is a step of providing the grounding portion 20 in the storage portion S, that is, a step of forming a grounding surface 25 on which the lower surface 14 of the door 10 of the door 10 and the support portion 16 is grounded when the door 10 falls.

As shown in FIG. 3, in the surface forming step, anchor bolts 21 are first laid in the foundation concrete B. As shown in FIG. Next, the adjusting nut 22 and the support beam 23 are inserted into the anchor bolt 21 in order. The support girders 23 are arranged at a predetermined height by the adjustment nuts 22 . In this way, the support girder 23 is arranged at a predetermined height from the base concrete B in the horizontal direction. Next, as shown in FIG. 4, the panel 24 is placed on the top surface of the support beam 23 . Here, the ground planes 25 (upper surfaces) of the respective panels 24 are flush with each other, and a flat ground plane 25 is formed.

After the surface forming process is completed, a temporary placing process is performed. In the temporary placement step, as shown in FIG. 5, the lower surface 14 of the door 10 is brought into contact with the ground surface 25 while the door 10 and the support portion 16 are connected to each other, and the door 10 is temporarily placed on the ground surface 25. It is a process to do. Here, the connecting member 18 integrates the plurality of support portions 16 in order to align the rotation axes X of the plurality of support portions 16 . The connecting member 18 is pre-attached to the support 16 during factory assembly. Therefore, when the door 10 is temporarily placed on the ground surface 25, the rotation axes X of the support portions 16 are aligned. The surface forming process and the temporary placement process do not include adjustment of the degree of contact between the ground contact surface 25 and the door body 10 and adjustment of the levelness of the ground contact surface 25, which will be described later.

After the temporary placement process is finished, the adjustment process is performed. The adjustment step is a step of adjusting the arrangement height of the panel 24 (the height of the ground contact surface 25) using an adjustment mechanism. The lower surface 14 of the door 10 may be bent due to welding or the like during manufacturing. In this case, when the door 10 is temporarily placed on the ground surface 25 , a gap is partially formed between the ground surface 25 and the lower surface 14 of the door 10 . If so, there is a possibility that the required degree of contact (grounding) between the ground contact surface 25 and the lower surface 14 of the door 10 cannot be ensured. If the degree of contact between the two is insufficient, there is a possibility that the wheel load or crowd load acting on the upper surface 13 of the door 10 will not be properly transmitted to the foundation concrete B when it falls down.

Therefore, in the adjustment process of the present embodiment, the arrangement height of the panel 24 is adjusted by the adjustment bolt 26 in order to ensure the necessary degree of contact between the ground contact surface 25 and the lower surface 14 of the door 10 (hereinafter referred to as contact degree (Also known as the adjustment of That is, the panel 24 is partially pushed up by the adjusting bolt 26 so that the ground surface 25 (upper surface) of the panel 24 separated from the lower surface 14 of the door 10 contacts the lower surface 14 of the door 10 . Next, the arrangement height of the support beam 23 is adjusted by the adjustment nut 22 so that the door 10, the support portion 16 and the ground surface 25 are horizontal (hereinafter also referred to as adjustment of horizontality). As described above, the required degree of contact between the ground plane 25 and the lower surface 14 of the door 10 is ensured, and the horizontality of the door 10, the support portion 16 and the ground plane 25 is ensured.

After the adjustment process is completed, the first placing process (placement process) is performed. As shown in FIG. 6, the first placing step is a step of placing a non-shrinkable mortar M at the location where the grounding portion 20 is to be installed. The non-shrinkage mortar M is cast to a position higher than the lower surface of the panel 24 and lower than the ground contact surface 25 (upper surface) of the panel 24 . That is, the non-shrinkage mortar M is cast up to a position higher than the upper surface of the support girder 23 . The panel 24 is embedded and fixed in the non-shrinkage mortar M with the upper part including the ground plane 25 exposed. Further, since the support beams 23 are embedded in the non-shrinkage mortar M, corrosion due to rust can be suppressed.

A fixing process is performed after a 1st placing process is complete|finished. The fixing step is a step of fixing the support portion 16 and the connecting member 18 while the door 10 is temporarily placed on the ground surface 25 . As shown in FIG. 7 , in the fixing step, first, anchor bolts 31 and 35 are laid in the foundation concrete B so as to match the bolt holes of the support portion 16 and the connecting member 18 . Although not shown in FIG. 7, the adjusting nuts 32, 36 and the base plate 34 are inserted into the anchor bolts 31, 35 when the anchor bolts 31, 35 are installed.

Next, as shown in FIG. 8, in the support portion 16, the base plate 34 is brought into contact with the lower surface 17 of the support portion 16 and positioned by the adjusting nut 32, and the fixing nut 33 is tightened. As a result, the base plate 34 is placed in contact with the lower surface 17 of the support portion 16 at a predetermined height above the foundation concrete B, and the support portion 16 and the base plate 34 are coupled with bolts. The connecting member 18 is clamped and fixed by an adjusting nut 36 and a fixing nut 37 .

After the fixing process is finished, a second placing process (placing process) is performed. The second placing step is a step of placing a non-shrinkage mortar M at the installation location of the fixing portion 30, as shown in FIG. In the fixed portion 30 corresponding to the support portion 16 , the non-shrinkable mortar M is cast to a position higher than the lower surface of the base plate 34 and lower than the upper surface of the base plate 34 . Non-shrinkage mortar M is placed below and inside the connecting member 18 at the fixing portion 30 corresponding to the connecting member 18 . Thus, the supporting portion 16 and the connecting member 18 are embedded in the non-shrinkage mortar M and fixed.

As described above, in the installation method of the hoisting gate 1 of the above-described embodiment, after forming the ground plane 25 to which the bottom surface 14 of the door body 10 grounds when it falls down, the ground plane 25 is grounded on the bottom surface 14 of the door body 10 . The support portion 16 is fixed in this state. Therefore, when the door 10 rotates, it is possible to prevent a situation in which the lower surface 14 of the door 10 comes into contact with the ground surface 25 and the rotation of the door 10 is hindered. Therefore, even with simple construction, the pivoting motion of the door 10 can be ensured. In other words, the undulating gate 1 can be installed so as to ensure the pivoting motion of the door 10 without performing work such as scraping the ground surface.

In the installation method of the undulating gate 1 of the above embodiment, after the plurality of support beams 23 are arranged in the horizontal direction, the panel 24 whose upper surface constitutes the ground surface 25 is arranged on the upper surface of the support beam 23. According to this configuration, by using a ready-made product such as a concrete panel as the panel 24, the flatness of the ground plane 25 can be easily ensured.

In addition, in the installation method of the undulating gate 1 of the above embodiment, the concrete (non-shrink mortar M) is cast to a position higher than the lower surface of the panel 24 and lower than the upper surface (grounding surface 25) of the panel 24. made it Therefore, the panel 24 can be fixed with the ground plane 25 (upper surface) exposed.

In addition, in the installation method of the hoisting gate 1 of the above-described embodiment, the adjustment bolt 26 (adjustment mechanism) is used so that the ground contact surface 25 separated from the lower surface 14 of the door body 10 contacts the lower surface 14 of the door body 10 . 24 (the height of the ground plane 25) is adjusted. Further, the arrangement height of each of the plurality of support girders 23 is adjusted by an adjustment nut 22 (adjustment mechanism) so that the door 10, the support portion 16 and the ground surface 25 are horizontal. Therefore, the required degree of contact between the ground plane 25 and the lower surface 14 of the door 10 can be ensured, and the horizontality of the door 10, the support portion 16 and the ground plane 25 can be ensured. As a result, the wheel load and crowd load acting on the upper surface 13 of the door 10 can be appropriately transmitted to the ground portion 20 or the foundation concrete B. As shown in FIG.

Further, in the installation method of the hoisting gate 1 of the above embodiment, after the base plate 34 is placed in contact with the lower surface 17 of the support portion 16, the support portion 16 and the base plate 34 are coupled with bolts. In the installation method described above, the concrete (non-shrink mortar M) is cast to a position lower than the upper surface of the base plate 34 . Therefore, the support portion 16 can be replaced only by removing the fixing nut 33 without removing the concrete.

In addition, the hoisting gate 1 of the above embodiment has a connecting member 18 that connects and integrates the plurality of support portions 16 with each other. Therefore, by connecting the plurality of support portions 16 with the connecting member 18 in a state in which the rotation axes X of the support portions 16 are aligned in advance during assembly at the factory, the support portions 16 can be easily positioned on site. Become.

(Modification of embodiment)
A modification of the above embodiment will be described with reference to FIGS. 10 and 11. FIG. In this modified example, in the undulating gate 1 of the above-described embodiment, the fixing portion is provided on the supporting beam of the grounding portion. Furthermore, in this modification, the adjustment process is performed after the fixing process in the installation method of the above-described embodiment. Here, points different from the above embodiment will be described.

In the installation method of the undulating gate 1 of this modified example, a surface forming process, a temporary placing process, a fixing process, an adjusting process and a placing process are performed in order. As shown in FIG. 10, in the surface forming step, support girders 27 longer in the upstream and downstream directions than the support girders of the above-described embodiment are arranged horizontally at a predetermined height from the base concrete B. As shown in FIG. The support beam 27 extends to a position corresponding to the support portion 16 and the connecting member 18 . A plurality of panels 24 are arranged on the upper surface of the support girders 27 as in the above embodiment.

A fixing portion 40 for fixing the support portion 16 and the connecting member 18 is provided on the upper surface of the support beam 27 at a position downstream of the panel 24 . Specifically, a base plate 41 for the support portion 16 and a base plate 42 for the connecting member 18 are arranged on the upper surface of the support beam 27 . These base plates 41 and 42 are fixed to the upper surface of the support beam 27 by welding. Stud bolts 43 and 44 for fixing the support portion 16 and the connecting member 18 are provided on the base plates 41 and 42, respectively. Thus, the fixed portion 40 shares the support beam 27 with the ground portion 20 .

In this way, in the surface forming process of this modified example, the ground surface 25 is formed and the fixed portion 40 is formed. In the subsequent temporary placement step, as shown in FIG. 11, the door 10 is temporarily placed on the ground plane 25 while being connected to the support portion 16, as in the above-described embodiment. Also, in the temporary placing process, the supporting portion 16 and the connecting member 18 are inserted into the stud bolts 43 and 44 and come into contact with the base plates 41 and 42 . That is, the support portion 16 and the connecting member 18 are supported by the support beam 27 via the base plates 41 and 42 .

The subsequent fixing step is a step of fixing the support portion 16 and the connecting member 18 to the base plates 41 and 42 while the door 10 is temporarily placed on the ground surface 25, as in the above-described embodiment. In the fixing process, the fixing nuts 45, 46 are inserted into the stud bolts 43, 44 and tightened. Thus, the base plate 41 is placed in contact with the lower surface 17 of the support portion 16 at a predetermined height from the base concrete B. As shown in FIG. The support portion 16 and the connecting member 18 are coupled to the base plates 41 and 42 with bolts. In addition, the configuration of the bolt connection between the support portion 16 and the base plate 41 is not limited to the above. For example, a screw hole may be formed in the base plate, and a bolt may be inserted from above the support portion and fastened to the screw hole.

In the subsequent adjustment process, the degree of contact is adjusted, and then the horizontality is adjusted, as in the above embodiment. That is, in adjusting the degree of contact, the height of the panel 24 is adjusted by the adjusting bolt 26 . In adjusting the horizontality, the height of the supporting beam 23 is adjusted by the adjusting nut 22 . As a result, the required degree of contact between the ground plane 25 and the lower surface 14 of the door body 10 is ensured, and the horizontality of the door body 10, the support portion 16 and the ground plane 25 is ensured.

In the subsequent casting step, although not shown, non-shrinkage mortar is cast at the installation locations of the grounding portion 20 and the fixing portion 40 in the same manner as in the above-described embodiment. That is, the non-shrinkage mortar is cast to a position higher than the lower surface of the panel 24 and lower than the ground contact surface 25 (upper surface) of the panel 24 . The non-shrinkage mortar is cast to a position higher than the lower surface of the base plate 41 and lower than the upper surface of the base plate 41 . In the casting process of this modified example, non-shrink mortar is collectively placed at the installation locations of the grounding portion 20 and the fixing portion 40, unlike the above-described embodiment. As described above, also in this modified example, the same effects as those of the above-described embodiment can be obtained.

Note that the technology disclosed in the present application may be configured as follows in the above embodiment and modifications.

For example, in the technology disclosed in the present application, the number of support portions 16 may be one or more than three. Further, the technique disclosed in the present application may omit the base plates 34, 41, 42 or the connecting member 18. FIG.

Further, in the casting process of the above embodiment, the concrete (non-shrinkable mortar M) is placed in two steps, the first placing process and the second placing process, but the technique disclosed in the present application is After the fixing step, the installation locations of the grounding portion 20 and the fixing portion 30 may be cast together.

Further, in the adjustment process of the above-described embodiment and modified example, the levelness may be adjusted first, and then the degree of contact may be adjusted.

Further, in the above embodiment, the adjustment of the degree of contact in the adjusting process may be performed after the fixing process (before the second placing process). In that case, the first placing step is performed together with the second placing step after adjusting the degree of contact. As described above, in the adjusting process of the above embodiment, the degree of contact may be adjusted before or after the fixing process, but the levelness may be adjusted before the fixing process.

Further, in the modification described above, the adjustment of the degree of contact in the adjusting process may be performed before the fixing process (after the temporary placing process).

In addition, in the above-described embodiment and modified example, the adjustment nut 22 is used to adjust the horizontality, but instead of this, the following adjustment method may be used. A screw hole is provided in the support girder, a bolt is inserted from above into the screw hole, and the tip of the bolt is pressed against the surface of the foundation concrete B. By changing the threaded length of the bolts, the height of the support girder is adjusted, thereby adjusting the horizontality.

Further, in the above-described embodiment and modification, a fixing nut may be inserted into the anchor bolt 21 from above, and the support girders 23 and 27 may be sandwiched between the adjusting nut 22 and the fixing nut.

In the above embodiment, the floating type hoisting gate 1 has been described, but the technology disclosed in the present application can also be applied to a manual hoisting gate that raises and lowers the door 10 manually instead of by the buoyancy of infiltrating water. can be applied.

As described above, the technology disclosed in the present application is useful for undulating gates and installation methods thereof.

1 hoisting gate 10 door body 12 base end 14 lower surface 16 support portion 17 lower surface 18 connecting member 20 grounding portion 22 adjusting nut (adjusting mechanism)
23, 27 Support girder 24 Panel 25 Ground plane 26 Adjustment bolt (adjustment mechanism)
30, 40 Fixed part 31 Anchor bolt (bolt)
34 base plate 41 base plate 43 stud bolt (bolt)
B Foundation concrete

Claims (5)

A method for installing a hoisting gate comprising a support portion and a door body whose base end is rotatably supported by the support portion and which is rotatably erected from a lying state, the method comprising the steps of:
A surface forming step of forming a contact surface on which the lower surface of the door of the support portion and the door is grounded when the door is lodged;
a temporary placement step of temporarily placing the door body on the ground plane by grounding the lower surface of the door body on the ground plane while the support portion and the door body are connected;
A fixing step of fixing the support part while the door is temporarily placed on the ground surface ,
The undulating gate has a base plate disposed at a predetermined height from the foundation concrete and in contact with the lower surface of the support,
In the fixing step, after the base plate is placed in contact with the lower surface of the support portion, the support portion and the base plate are coupled with bolts.
A method for installing an undulating gate, characterized by: In the installation method of the undulating gate according to claim 1,
In the surface forming step, after a plurality of support girders are arranged in a horizontal direction at a predetermined height from the foundation concrete, a panel whose upper surface constitutes the ground contact surface is arranged on the upper surface of the support girders. Installation method of sloping gate. In the installation method of the undulating gate according to claim 1,
A method for installing an undulating gate, characterized by comprising an adjustment step of adjusting the height of the ground plane by an adjustment mechanism after the temporary placement step. In the installation method of the undulating gate according to claim 1 ,
A method for installing an undulating gate, comprising a step of placing concrete to a position lower than the upper surface of the base plate. In the installation method of the undulating gate according to claim 4,
A plurality of the support portions are provided at intervals in the width direction of the door body,
A method of installing an undulating gate, wherein the undulating gate has a connecting member for connecting and integrating the plurality of supporting portions.

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