JP2003278137A - Floating body type gate device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floating body type gate device capable of performing maintenance on land by removing a gate and reducing a storage part on a water bottom for storing the gate to reduce construction cost. <P>SOLUTION: This floating bag type gate device 1 is provided with a foundation part 5 installed on the water bottom, a floating body 2 like a bag partially fixed to the foundation part 5 and protruding above water when it expands and capable of expanding and shrinking, an air supply and exhaust means 28 for supplying and exhausting air into/from the floating body 2, the storage part 51 capable of storing the floating body 2, and a pulling-in means 4 for recovering the floating body 2 into the storage part 51 when it shrinks. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating gate device.

[0002]

2. Description of the Related Art Conventionally, a main structure of a floodgate or a river weir for preventing flooding and storm surge of a river is to construct a floodgate pillar, and to move the floodgate door that is vertically movable on the floodgate pillar. It was However, the sluice with this structure is not economical because it requires large-scale construction when constructing the sluice because it requires the construction of sluice posts. So recently,
A flap gate type floodgate that does not require the construction of a floodgate pillar has been proposed. The flap gate type floodgate injects air into the gate while discharging the water inside the gate,
Lighten the apparent specific gravity of the gate and raise the gate,
It functions as a floodgate. Also, when the gate is not used, the air inside the gate is discharged and water is made to flow in, so that the gate is laid on the bottom of the water and stored.

[0003]

Such a flap gate type floodgate has a foundation built on the bottom of the water, and the gate is rotatably attached to the foundation, and the gate is strong so as not to come off from the foundation. Since it is attached to the, the maintenance becomes an underwater work, and the work is difficult, so that the work efficiency is lowered. Further, in the flap gate type floodgate, it is necessary to construct a large-sized storage unit for storing the gate on the bottom of the water, which causes a rise in construction cost.

SUMMARY OF THE INVENTION An object of the present invention is to provide a floating gate device which can be removed from the gate for maintenance on land. Another object of the present invention is to provide a floating gate apparatus in which the construction cost is reduced by reducing the storage part of the water bottom for storing the gate.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is, for example, as shown in FIGS. 1 to 8, installed in the bottom of the water, and is a floating type for damming water currents or waves. The gate device 1, which is a base part 5 installed on the bottom of the water
An inflatable and inflatable bag-like floating body 2 that is partially fixed to the base portion 5 and protrudes above the water when inflated, an air supply / exhaust means 28 for supplying / exhausting air to / from the floating body 2, and the floating body 2. An accommodating portion 51 capable of accommodating, and the floating body 2 when accommodating the accommodating portion 51.
And a retracting means 4 for recovering to

Here, as an example, a case where the floating gate apparatus is installed on the seabed in the coastal area will be described. As described above, according to the first aspect of the present invention, when high waves are likely to occur, when air is sent from the air supply / exhaust means into the floating body, the floating body expands and rises from the storage portion due to buoyancy to float above the water. Project to. As a result, the floating body can suppress the waves coming in. Conversely, if the waves calm down,
When the air in the floating body is discharged from the air supply / exhaust means, the floating body contracts and loses its buoyancy, so that the floating body sinks to the foundation. At this time, the retracting means collects the floating body in the storage section.

The invention according to claim 2 is, for example, as shown in FIGS. 1 to 8, a floating body type gate device 1 according to claim 1, wherein the floating body 2 is detachable from the base portion 5. It is characterized in that it is provided with a connecting means 3.

According to the second aspect of the present invention, since the floating body is provided with the connecting means that is detachable from the base portion,
When performing maintenance of the floating body, the floating body can be detached from the base portion by the connecting means, and the floating body can be transported to a place where work can be easily performed, for example, a dock on land, for maintenance.

The invention according to claim 3 is, for example, as shown in FIGS.
As shown in FIG. 19, a floating gate device 10 installed on the bottom of the water for damming water currents or waves, which is a base part 9 installed on the bottom of the water, is connected to the base part 9 and can be erected. Water stop member 11 for stopping water flow, and this water stop member 11
The inflatable and inflatable bag-like floating body 6 that is connected to the free end of the floating body 6 and projects into the water when inflated, the air supply and exhaust means 13 that supplies and exhausts air to and from the floating body 6, and the storage portion 91 that can store the floating body 6. It is characterized by having and.

Here, as an example, a case where the floating gate apparatus is installed on the seabed in the coastal area will be described. As described above, according to the third aspect of the present invention, when high waves are likely to occur, when air is sent into the floating body by the air supply / exhaust means, the floating body expands and rises from the storage portion due to buoyancy to float above the water. Project to. At the same time, the water blocking member connected to the floating body also rises from the foundation due to the buoyancy of the floating body. As a result, the floating body can suppress the waves coming in. On the contrary, if the wave becomes calm, when the air in the floating body is discharged by the air supply / exhaust means, the floating body contracts and loses the buoyancy, so the water blocking member settles down on the foundation part by its own weight and is connected to the water blocking member. The floating body also sinks in the storage.

The invention according to claim 4 is, for example, as shown in FIGS.
As shown in FIG. 19, the floating gate apparatus 10 according to claim 3 is provided with a connecting means 7 for detachably attaching the water blocking member 11 to the foundation portion 9. .

According to the fourth aspect of the present invention, since the water blocking member is connected through the detachable connecting means, when performing maintenance on the floating body and the water blocking member, the foundation means is connected by the connecting means. The floating body and the water blocking member can be removed, and the maintenance can be performed by transporting the floating body or the water blocking member to a place where work is easy, for example, a land dock.

The invention according to claim 5 is, for example, as shown in FIGS.
As shown in FIG. 19, it is the floating gate apparatus 1 or 10 according to any one of claims 1 to 4, and is provided with pouring and draining means 14 and 20 for pouring and draining water into the floating bodies 2 and 6. It is characterized by being

According to the fifth aspect of the present invention, by injecting water into the floating body from the pouring / draining means, the water injected into the floating body is accumulated below the floating body, so that the water in the floating body is a weight of the floating body. Therefore, it is possible to increase the stability of the floating body.

The invention according to claim 6 is, for example, as shown in FIGS.
As shown in FIG. 19, the floating body type gate device 10 according to claim 3 or 4, wherein a retracting means 8 for retracting the free end of the water blocking member 11 in a direction in which the floating body 6 is accommodated is provided. It is characterized by

According to the sixth aspect of the present invention, when the retracting means retracts the free end of the water blocking member in the direction in which the floating body is accommodated, the water blocking member rotates about the base end of the water blocking member, It will be lying down on the foundation. In this process, the retracting means retracts the water blocking member in a predetermined rotation direction to prevent the water blocking member from rotating in the direction opposite to the direction in which the floating body is housed, and to position the water blocking member in the correct position. It is possible to settle reliably.

The invention according to claim 7 is, for example, as shown in FIGS.
As shown in FIG. 19, the floating gate apparatus 10 according to claim 6, wherein the retracting means 8 includes the water blocking member 1.
The wire 82 connected to the free end of
And a winch 81 that winds up in the direction in which the floating body is stored.

According to the seventh aspect of the invention, one end of the wire is connected to the free end of the water blocking member, and the wire is wound by the winch, so that the water blocking member can be secured in the correct position with a simple device. It can serve as a drawing means for causing the particles to settle.

The invention according to claim 8 is, for example, as shown in FIGS. 1 to 19, a floating body type gate device 1, 10 according to any one of claims 1 to 7, wherein the floating bodies 2, 6 are Is
Airtight layers 21 and 61 having airtightness, and the airtight layers 21 and 61,
Wear-resistant layer 2 provided on the outer surface of 61 and having wear resistance
2, 62 are provided.

According to the eighth aspect of the invention, when the floating body is used as a gate for expanding and blocking the water flow, the airtight layer can stably maintain the amount of air inside the floating body. In addition, the wear-resistant layer withstands the impact of water flow,
Prevents deterioration and damage of the airtight layer.

The invention according to claim 9 is, for example, as shown in FIGS. 1 to 19, the floating gate apparatus 1, 10 according to claim 8, wherein the floating bodies are provided on the outer surfaces of the floating bodies 2, 6. It is characterized in that it is provided with reinforcing members 23 and 63 for reinforcing the members 2 and 6.

According to the ninth aspect of the present invention, by providing the reinforcing material on the outer surface of the floating body, the floating body inside thereof can be protected.

The invention described in claim 10 is, for example, as shown in FIGS.
As shown in FIG. 19, in the floating gate devices 1 and 10 according to claim 9, the reinforcing members 23 and 63 are flexible lattice-like members.

According to the tenth aspect of the invention, since the reinforcing material has flexibility, the reinforcing material is deformed as the floating body expands and contracts, and the floating body and the reinforcing material are not separated from each other. Further, since the reinforcing material is a lattice-shaped member, the weight can be reduced and the floating body can be smoothly levitated.

The invention described in claim 11 is, for example, as shown in FIG.
As shown in FIG. 19, the floating gate apparatus 1, 10 according to claim 8, wherein a plurality of protective members 24, 64 covering the wear resistant layers 22, 62 are the reinforcing members. It is characterized in that it is provided via 23, 63.

According to the eleventh aspect of the present invention, since the protective material is provided through the reinforcing material, water and suspended matter in the vicinity of the water surface do not directly contact the wear resistant layer. Therefore, it is possible to prevent the wear resistant layer from being damaged and extend the service life of the floating body. Further, since the plurality of protective materials covering the wear resistant layer are provided, if the protective material is damaged, only the damaged part can be replaced.

The invention described in claim 12 is, for example, as shown in FIG.
~ As shown in FIG. 19, the floating body type gate device 10 according to claim 3, wherein the floating body 6 is provided.
An inflatable auxiliary floating body 66 is provided on one of the side end portions of the.

According to the twelfth aspect of the invention, for example,
When a plurality of floating type gate devices are arranged side by side and installed between existing breakwaters, the auxiliary floating bodies can be expanded to fill the gaps between the floating bodies or between the floating body and the breakwater.

The invention described in claim 13 is, for example, as shown in FIG.
As shown in FIG. 19, the floating gate apparatus 1 according to claim 1 or 2, wherein the floating body 2 is connected to the floating body 2 of another floating gate apparatus 1 adjacent thereto.
7 is provided.

According to the thirteenth aspect of the present invention, the floating body type gate device having a desired width and size can be constructed by connecting the plurality of floating bodies by the joint portion.

The invention described in claim 14 is, for example, as shown in FIG.
As shown in FIGS. 19 and 24, the floating gate apparatus 1, 10 according to any one of claims 1 to 13, wherein internal pressure measuring means 13e for measuring the internal pressure of the floating bodies 2 and 6, and When the internal pressure of the floating bodies 2, 6 obtained by the internal pressure measuring means 13e is lower than a predetermined value, an air amount control means 17 for controlling the air supply / exhaust means 13 so as to supply air into the floating bodies 2, 6. It is characterized by having.

According to the fourteenth aspect of the invention, when the internal pressure of the floating body obtained by the internal pressure measuring means is lower than a predetermined value, the air amount control means controls the air supply / exhaust means to supply air into the floating body. Since the air is supplied, the floating body can always maintain an appropriate buoyancy.

The invention according to claim 15 is, for example, as shown in FIG.
19 to 24, the floating gate apparatus 10 according to claim 3, wherein the strain measuring means 13f for measuring the strain of the water blocking member 11 and the strain measuring means 13f are used. When the strain of the floating body 6 is larger than a predetermined value,
The air supply / exhaust means 13 is configured to exhaust air from the inside of the floating body 6.
And an air amount control means 17 for controlling.

According to the fifteenth aspect of the present invention, when the strain of the water blocking member obtained by the strain measuring means is larger than a predetermined value, the air amount control means controls the air supply / exhaust means to remove the air from the floating body. Since the air is exhausted, the floating body can always maintain proper buoyancy.

[0035]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a floating gate device according to an embodiment of the present invention will be described in detail with reference to the drawings. [First Embodiment] First, the configuration of a floating gate apparatus will be described. As shown in FIG. 1 and FIG. 2, the floating gate apparatus 1 is provided in a part of a river or a coastal structure to stop the running water and storm surge of a flooded river. The connecting device 3, the retracting device 4 as the retracting means, the base portion 5, and the like.

The floating body 2 is formed in a bag shape, and as shown in FIG. 1, the floating body 2 expands by injecting air into the floating body 2 and rises from the water bottom with the lower end as a fulcrum to catch the flowing water and storm surge of the river. Stop. The floating body 2 has a shape in which the lower end portion is narrower in the expanded state, the upper end portion is arcuate in side sectional view, and further, in plan view, it is oval-shaped as shown in FIG. It has become. Further, as shown in FIG. 2, the floating body 2 contracts by discharging air from the inside, sinks to the water bottom, and is stored in the water bottom.
As shown in FIGS. 3 to 10, the floating body 2 serves as an airtight layer 21, a wear resistant layer 22, a reinforcing material 23, a protective material 24, a locking shaft 25, a rotating portion 26, a joint portion 27, and an air supply / exhaust means. The air injection / exhaust section 28 and the auxiliary plate 29 are provided.

As shown in FIG. 5, the airtight layer 21 is a layer which is flexible and prevents passage of air or water between the inside and the outside of the floating body 2, and is, for example, flexible and airtight. It is preferably composed of fibers such as nylon having excellent properties. As shown in FIG. 5, the abrasion resistant layer 22 is adhered to the outer surface of the airtight layer 21, has flexibility, and prevents deterioration or damage of the airtight layer 21 due to wave force from the outside of the floating body 2. It is a layer. The abrasion resistant layer 22 is preferably made of a resin such as vinyl chloride resin having excellent flexibility and abrasion resistance. At the lower end of the floating body 2 connected to the connecting device 3, a part of the airtight layer 21 and the abrasion resistant layer 22 is cut out to form a pouring / draining section 20 as a pouring / draining means. It allows a small amount of water to flow from the inside. As a result, damage to the floating body 2 due to the action of excessive air pressure can be prevented.

The reinforcing member 23, as shown in FIGS.
It is arranged on the outer surface of the wear resistant layer 22, has strength enough to reinforce the airtight layer 21 and the wear resistant layer 22, and is deformable following the deformation of the airtight layer 21 and the wear resistant layer 22, for example, It is preferable to use a wire having a small diameter. The wires serving as the reinforcing material 23 are arranged in a grid pattern on the outer surface of the wear resistant layer 22, and as shown in FIG. 3, the vertical wires 23a are arranged on the wear resistant layer 22 in a substantially vertical direction at predetermined intervals. Horizontal wires 23b are arranged on the wear-resistant layer 22 in a substantially horizontal direction at predetermined intervals so as to intersect the vertical wires 23a. Also, the vertical wire 23a
Are arranged along the outer surface of the wear resistant layer 22 so as to extend from the lower end to the upper end of the floating body 2, and both ends thereof are locked to a rotating portion 26 described later. Further, the horizontal wire 23b is arranged horizontally on the outer surface of the wear resistant layer 22,
The portion that intersects the vertical wire 23a is joined to the vertical wire 23a. The vertical wires 23a and the horizontal wires 23b may be arranged in reverse.

As shown in FIG. 5, the protective member 24 protects floating substances such as driftwood from coming into contact with the wear resistant layer 22, and is made of a steel plate or the like having high rigidity. The protective member 24 is formed in substantially the same size as a quadrangle surrounded by two adjacent vertical wires 23a and two adjacent horizontal wires 23b. Further, the protective member 24 is rotatably connected to the horizontal wire 23b via a hinge (not shown), and the protective member 24 is rotated as the abrasion resistant layer 22 expands and contracts. There is.

The locking shaft 25 has a structure as shown in FIG. 3, FIG. 6, FIG.
As shown in FIG. 10, the rotating portion 26 is rotatably supported, and is made of, for example, a steel pipe. The locking shaft 25 is detachably connected to the connecting device 3 as shown in FIGS. 6 and 7. The rotating unit 26 is shown in FIG.
As shown in FIGS. 9 and 10, this is a portion that supports the vertical wire 23a and serves as a fulcrum when the floating body 2 rotates. The rotating portion 26 is formed of a substantially ring-shaped metal fitting, and both ends of the vertical wire 23 a are embedded in the rotating portion 26. In addition, a hole having a diameter slightly larger than the diameter of the locking shaft 25 is formed substantially at the center of the rotating portion 26 so that the locking shaft 25 can be inserted.

The joint portion 27, as shown in FIG. 3 and FIG.
It connects a plurality of floating bodies 2, is provided so as to extend from the lower end to the upper end of the side surface of the floating body 2, and is provided with a support member 27a and a connecting member 27b. The support member 27a is made of a hard material such as reinforced plastic, and is formed in a hollow and substantially square pole shape. Further, in a portion of the adjacent floating body 2 facing the support member 27a, a hole for fitting a connecting member 27b connecting the support members 27a is formed. The connecting member 27b is made of a substantially H-shaped hard rubber or the like, and by fitting the connecting member 27b over the respective supporting members 27a of the adjacent floating bodies 2 through the holes formed in the supporting member 27a,
The adjacent floating bodies 2 are connected.

As shown in FIGS. 1 and 2, the air injection / exhaust section 28 includes an injection section 28a and an exhaust section 28b. The injection part 28a is a part which injects air into the floating body 2 when the floating body 2 is raised, and includes an injection pump 28c, an injection pipe 28d, and a mounting member 28e. Infusion pump 28
For c, for example, a general-purpose air pump is used, and the foundation part 5
It is installed in a water-blocked area inside.

The injection pipe 28d guides the air sent from the injection pump 28c into the floating body 2. For example,
It is made of a flexible material such as rubber. Further, one end of the injection pipe 28d is connected to the injection pump 28c, and the other end thereof is installed so as to be positioned inside the floating body 2 through the cutout portion of the floating body 2. The injection pipe 28d
Is provided with, for example, a valve (not shown) and a pressure sensor (not shown) as an internal pressure measuring means, so that air is supplied to the floating body 2 when the internal pressure in the floating body 2 is lower than a predetermined value. The injection pump 28c may be controlled by the air amount control means. Here, air amount control means (not shown)
Is realized by the microcomputer executing a predetermined program. The attachment member 28e attaches the injection pipe 28d to the inner surface of the floating body 2, and prevents the injection pipe 28d from coming out of the inside of the floating body 2 when injecting air.
It plays the role of holding 8d. The discharge part 28b is
Air is discharged from the floating body 2 when the floating body 2 is stored. For example, the floating body 2 is formed by an opening / closing valve and is provided at the upper end of the floating body 2.

The auxiliary plate 29, as shown in FIGS. 3 and 4,
This is to supplement the strength of the rounded portion of the upper end of the floating body 2 that receives the internal pressure. The auxiliary plate 29 is made of reinforced plastic, resin, or the like, and is formed so as to match the outer surface of the floating body 2. Two auxiliary plates 29 are provided in one floating body and partially play a role of blocking the water flow.

The connecting device 3 is, as shown in FIGS. 6 and 7,
The floating body 2 is detachably connected to the base portion 5, and includes a fixed portion 31, a movable portion 32, and a drive shaft 33.

The fixed portion 31 supports the locking shaft 25 of the floating body 2, and a part of the fixed portion 31 is embedded in the base portion 5.
It serves as an anchor when the floating body 2 is attached. The fixing portion 31 protruding from the base portion 5 is formed in a hook shape, and the recess 31 a thereof supports almost half of the outer circumference of the locking shaft 25. In addition, one connecting device 3
Two fixed parts 31 are provided side by side.

The movable portion 32 is provided between the two fixed portions 31 and is formed in a hook shape like the fixed portion 31. The recess 32a of the movable portion 32 is the recess 31a of the fixed portion 31.
Is configured to support almost half of the outer circumference of the locking shaft 25, which cannot be fully supported. In addition, the movable portion 32 includes a drive shaft 33.
Is mounted on the fixed part 31 and is rotated with the rotation of the drive shaft 33.
The fixed portion 31 and the movable portion 32 sandwich and support the locking shaft 25 from both sides when rotating to a position facing the recess 31a.

The drive shaft 33 rotates the movable part 32, and its end is connected to a motor (not shown). Further, the drive shaft 33 is provided so as to penetrate substantially the central portion of the side surface of the fixed portion 31 and to be substantially parallel to the supported locking shaft 25.

As shown in FIGS. 1 and 2, the retractor 4 stabilizes the floating body 2 in a state where the floating body 2 is raised, and stabilizes the floating body 2 by facing the flowing direction of the flooded river or the direction of the high tide, and contracts the floating body 2. When the floating body 2 is allowed to settle, the floating body 2 is collected in the storage portion 51 described later. The retractor 4 includes a winch 41 and a stability guide cable 42.

The winch 41 winds or extends the stable guide cable 42 according to the state of the floating body 2. When the floating body 2 is raised, that is, when the floating body 2 is functioning as a gate, the stability guiding cable 42 is wound to such an extent that tension is applied to the floating body 2 so that the floating body 2 is not tilted by water pressure or wave force. Stabilize. On the other hand, when the floating body 2 is stored, the winch 41 is wound and the floating body 2 is guided so that the floating body 2 fits in the storage portion 51.

The stability guide cable 42 stabilizes or guides the floating body 2 as described above. The stable guide cable 42 is composed of a wire having a large diameter and the like, one end of which is attached to the drum of the winch 41, and the other end of which extends over the upper end of the floating body 2 and is provided on the locking shaft 25. 42 is connected to a dedicated mounting portion (not shown).

The base 5 is installed on the bottom of the water and serves as a base for installing the floating gate apparatus 10. The base portion 5 is made of concrete, and a storage portion 51 for storing the floating body 2 is provided on the upper surface thereof. The storage portion 51 is a recess on the base portion 5 formed to accommodate the contracted floating body 2.

In order to construct the floating gate apparatus 1, first, the foundation 5 is constructed by reinforcing bars and concrete in a dock on land. At that time, on the upper surface of the base portion 5, the floating body 2
A recess is provided to be a storage portion 51 for storing the. Also,
The connecting device 3 is buried in a place other than the storage part 51 of the base part 5, and the winch 41 is installed at a position facing the connecting device 3 with the storage part 51 sandwiched therebetween. After that, towing the foundation part 5,
Submerge in place at the bottom of the water. Next, the floating body 2 manufactured by a land dock or the like is towed, and the stable guiding cable 42 is connected to a mounting portion dedicated to the stable guiding cable 42, and then the floating body 2 is submerged in the bottom of the water. Next, the motor (not shown) of the coupling device 3 is driven to rotate the drive shaft 33, and the movable portion 32
The recess 32a is rotated so as to be separated from the recess 31a of the fixing portion 31. Next, the locking shaft 25 is attached to the recess 3 of the fixing portion 31.
The locking shaft 25 is attached to the coupling device 3, and the locking shaft 25 is attached so that the locking shaft 25 is sandwiched by the locking member 25. Next, attach the stability guide cable 42 to the winch 41.
And the floating body 2 is stored in the storage portion 51, and the installation of the floating gate apparatus 1 is completed.

When a plurality of floating bodies 2 are connected to each other, the connecting material 27 is spread over both supporting materials 27a of the adjacent floating bodies 2.
Just attach b. In the floating body 2, the wear resistant layer 22 is first bonded to the outer surface of the bag-shaped airtight layer 21. Then
A vertical wire 23a and a horizontal wire 2 are provided on the outer surface of the wear resistant layer 22.
3b is arranged, and the protective member 24 is rotatably attached to the horizontal wire 23b. Finally, the support member 27 is attached to the side surface of the floating body 2.
a, the floating plate 2 is formed by attaching the auxiliary plate 29.

Next, the operation of the floating gate apparatus 1 will be described. When there is a risk of rising water or high tide in the river, air is sent from the injection pump 28c into the inside of the floating body 2 through the injection pipe 28d, the floating body 2 expands, and the locking shaft 2
The rotating unit 26 rotates around the center 5, and the floating body 2 gradually rises. At that time, the winch 41 extends the stability guide cable 42 in accordance with the rising of the floating body 2 to raise the floating body 2 while stabilizing the floating body 2. When the floating body 2 is completely raised, the winch 41 is stopped, and the stability guide cable 42 supports the floating body 2 under a certain tension. Then, when the increase in water in the river or the high tide pushes against the floating body 2 (from the right direction in FIG. 1), the wave collides with the rising floating body 2, and most of the energy of the wave is attenuated. The air in the floating body 2 is exhausted by the increase of the river water and the storm surge.
When removed from 8b, the floating body 2 contracts gradually while contracting. At that time, the winch 41 stabilizes the guide cable 4
By winding the winding member 2, the rotating portion 26 rotates about the locking shaft 25, and the floating body 2 is guided to the storage portion 51.

According to the floating gate apparatus 1 of the present embodiment, by injecting air into the floating body 2, the floating body 2 expands and rises from the storage portion 51 to prevent the increase of water in rivers and storm surges. Since the bag-shaped floating body 2 that is inflatable and contractible by contracting by discharging air and sinking to the bottom of the water is used, the storage portion 51 provided at the bottom of the water may have the size when the floating body 2 contracts. Further, since the floating body 2 is detachably connected to the connecting device 3, the locking shaft 2 of the floating body 2 is connected.
5 can be detached from the coupling device 3 and the floating body 2 can be carried to the dock on the work boat or on the land for maintenance, and maintenance work in water is not required, and the work efficiency can be improved.

Further, since the floating body 2 is provided with the airtight layer 21, when the floating body 2 is used as a gate for expanding and blocking the flow of water, the air inside the floating body 2 escapes and the floating body 2 contracts. And prevent it from sinking. In addition, the floating body 2
Since the wear resistant layer 22 is provided on the outer surface of the airtight layer 21, the wear resistant layer 22 can be prevented from being deteriorated or damaged.
As it does not easily deteriorate or be damaged, the floating gate device 1
The service life of can be extended. Further, since the vertical wire 23a and the horizontal wire 23b that reinforce the floating body 2 are provided on the outer surface of the wear resistant layer 22, the service life of the floating body 2 can be extended. Further, since the protective material 24 for protecting the abrasion resistant layer 22 is provided on the horizontal wire 23b,
The wear resistant layer 22 can be prevented from being damaged by floating matter such as driftwood, and the service life of the floating body 2 can be extended.

Further, since the floating body 2 is provided with the joint portion 27, the floating body gate apparatus 1 having a desired size can be constructed by connecting the plurality of floating bodies 2 by the joint portion 27. In addition, the floating gate apparatus 1 has one floating body 2
The size of one floating body 2 is smaller when the floating bodies 2 are connected to each other than when the floating body 2 is connected. Therefore, the floating body 2
Makes maintenance easier.

The floating gate apparatus is not limited to this embodiment. For example, as for the method of constructing the floating gate and the structure of the floating body, other methods and materials can be used as long as they do not depart from the scope of the invention. Even if the river is not flooded, the floating body can be raised to function as a dam.

[Second Embodiment] First, the structure of the floating gate apparatus will be described. Note that constituent elements having the same functions as those in the first embodiment will be briefly described. As shown in FIG. 11, the floating gate apparatus 10 is
Floating body 6, fixing device 7 as connecting means, retracting device 8 as retracting means, foundation part 9, water blocking wall 11 as water blocking member, seal member 12, air supply / exhaust part 13 as air supply / exhaust means, water supply / drainage means It is equipped with a water supply / drainage unit 14 and the like.

The floating body 6 is connected to the free end of the water blocking wall 11 and is formed in such a size that it projects above the water when expanded.
Further, as shown in FIG. 11, the floating body 6 has a cylindrical shape in which both end portions are closed in the expanded state. Like the floating body 2, the floating body 6 floats from the water bottom by sending air into the inside, contracts by discharging air from the inside, sinks to the water bottom, and is stored in the water bottom. Further, as shown in FIGS. 12 to 17, the floating body 6 includes an airtight layer 61, a wear resistant layer 62, a mooring line 63 as a reinforcing material, a protective material 64,
A floating body mooring portion 65 and an airbag 66 as an auxiliary floating body are provided.

As shown in FIGS. 12-14, the airtight layer 61 is composed of, for example, a super fiber layer 61a and a rubber layer 61b. To create the airtight layer 61, first,
The super fiber layer 61a knitted in a lattice shape is sandwiched by the rubber layers 61b from both sides and integrated to form a membrane material. The film material is stacked in two layers as shown in FIG. 13, and the film material having the two-layer structure is joined by shifting the ends thereof as shown in FIG. Is formed. That is, the airtight layer 61
Will have the thickness of four created film materials,
The floating body 6 exhibits sufficient strength. The film materials are joined together by a natural vulcanizing adhesive, but if the floating body 6 is small, it may be placed in a vulcanizing pot and subjected to forced vulcanization.

[0063] abrasion resistant layer 62, as shown in FIG. 14, similarly to the first embodiment, is provided on the outer surface of the airtight layer 61, for example, net or the like woven by a thin wire is used. The airtight layer 61 and the wear resistant layer 62 are not limited to those described above, and may be made of any material as long as they exhibit the required strength and wear resistance.

The mooring line 63 is provided on the outer surface of the wear resistant layer 62, and not only reinforces the airtight layer 61 and the wear resistant layer 62, but also serves to moor the floating body 6 to the water blocking wall 11.
The mooring lines 63 are formed in a lattice shape and are arranged along the outer surface of the wear resistant layer 62 so as to circulate over the lower end portion and the upper end portion of the floating body 6, and the plurality of both ends thereof have the waterproof function shown in FIG. Plural floating body mooring portions 6 provided at the free end of the wall 11
Moored at 5. The mooring line 63 is made of the same super fiber as that used for the airtight layer 61 in order to reduce the weight.

As shown in FIGS. 11, 15 and 16, a plurality of protective members 64 are provided so as to cover the abrasion resistant layer 62. For example, FRP (fiber reinforced plastics) is lightweight and has high rigidity. It consists of Protective material 64
As shown in FIG. 15, is formed in a certain size, and each side edge portion is folded back inward. As shown in FIG. 16 (a), this folded-back portion is the mounting hardware 64a.
It is attached to the mooring line 63 via. Also, FIG.
As shown in FIG. 5C, the seal member 12 having elasticity is attached to the joint between the protective members 64.

In addition to the joint between the protective members 64, the seal member 12 has a floating body 6 as shown in FIGS.
Between the water stop wall 11 and the fixing device 7,
It is mounted between the water blocking walls 11 to prevent passage of water, and is made of an elastic material such as rubber. The seal member 12 is formed in a substantially Ω shape, and when attached between the floating body 6 and the water blocking wall 11, one end is attached to the surface of the protective member 64 at the lower end portion of the floating body 6 with a bolt. The other end is attached to the upper end of the water blocking wall 11 with a bolt. The method of attachment is the same at the other attachment points.

The floating body mooring portion 65, as shown in FIG.
It is a portion provided at the tip of the free end of the water blocking wall 11 to moor the floating body 6, and has a hinge structure. Further, the floating body mooring portions 65 are provided in the same number at the positions corresponding to the ends of the mooring lines 63, and the mooring shafts 65 a and 65 for the mooring lines 63 are provided.
The rotating part 65b for a, the support plate 65c, the mooring shaft 65d for the water blocking wall 11, and the rotating part 65e for the mooring shaft 65d are provided. The mooring shaft 65a rotatably supports the rotating portion 65b, and both ends thereof are fitted and fixed to the upper portions of the two support plates 65c. The rotating part 65b is used for the mooring line 6.
It supports both ends of 3, and is formed of, for example, a pulley or the like, and is rotatably supported by the mooring shaft 65a.
The support plate 65c supports the locking shaft 65a, and the locking shaft 65a can be attached and detached when the mooring line 63 is replaced. Both support plates 65c are
The rotating portion 65b is pivotally supported with a slight gap. The mooring shaft 65d rotatably supports the rotating portion 65e, and both ends thereof are fitted and fixed to the lower portions of the two support plates 65c. The rotating portion 65e is for connecting the water blocking wall 11 and the floating body 6, is formed of, for example, a pulley, and is rotatably supported by the mooring shaft 65d. In addition, the connecting rope 65f provided on the water blocking wall 11 is the rotating portion 6
It is locked along a groove formed on the outer periphery of 5e and connects the floating body 6 and the water blocking wall 11.

For example, as shown in FIG. 17, the airbag 66 is provided at one of the side end portions of the floating body 6 which comes into contact with the breakwater 92 when a plurality of floating bodies 6 are installed side by side between the existing breakwaters 92. ing. The airbag 66 is formed of the same film material as that of the floating body 6, and can be inflated and contracted by sending air into and discharging air from the inside. In addition,
Air supply and exhaust to the air bag 66 is performed by the air supply and exhaust pump 1 described later.
3a may serve as the air supply / exhaust pipe 13b, or may be provided as a separate system. Further, a material having excellent wear resistance, such as a steel plate or a reinforced resin, is attached to a portion of the airbag 66 that comes into contact with the breakwater 92 to protect the airbag 66. Further, the airbag 66 may be provided at both end portions of the floating body 6.

As shown in FIG. 18, the fixing device 7 is detachably attached to the foundation part 9 and rotatably supports the lower end portion of the water blocking wall 11 so that the fixing part 71 can rotate. Part 72,
The support shaft 73 and the hole portion 74 provided in the base portion 9 are provided. The fixing device 7 has a hinge structure and includes a fixing portion 71.
A support shaft 73 is attached to the support shaft 73, and the rotating portion 72 is rotatably supported by the support shaft 73. And
A wire or the like attached to the lower end of the water blocking wall 11 is fitted into a groove formed on the outer periphery of the rotating portion 72 to connect the fixing device 7 and the water blocking wall 11. As mentioned above,
A seal member 12 is attached between the upper end of the fixing device 7 and the lower end of the water blocking wall 11 to perform a water blocking process. Further, the fixing device 7 is fixed to the hole portion 74 via a pin (not shown), and can be easily removed from the hole portion 74 by removing the pin, whereby the floating body 6 and the water blocking wall 11, The fixing device 7 can be maintained.

As shown in FIGS. 11 and 24, the retractor 8 retracts the free end of the water blocking wall 11 from the side of the foundation 9 in the direction in which the floating body is accommodated. In addition, the retractor 8 has the water blocking wall 11 when the floating body 6 is raised.
When the floating body 6 is contracted, the water blocking wall 11 is tilted in a predetermined direction to store the floating body 6 in a storage portion 9 described later.
It will guide you to 1. The retracting device 8 includes a winch 81 and a stable guide cable 82 formed of a wire. The winch 81 is installed on the nearby breakwater, as shown in FIG. On the other hand, the stable guide cable 82 extending from the winch 81 reaches the foundation portion 9 through the ground or underwater, and is relayed by the relay portion 83 on the foundation portion 9 as shown in FIG. It is connected to the upper end of 11.

The base 9 is installed on the bottom of the water and serves as a base for installing the floating gate device 10. The base portion 9 is made of concrete to have a hollow interior, and the air supply / exhaust portion 13 and the water supply / drainage portion 14 are provided inside thereof.
Part of is provided. The storage portion 91 is a portion formed by dredging the seabed and placing concrete so that the contracted floating body 6 can be stored therein, and is provided adjacent to the shore side of the foundation portion 9.

As shown in FIG. 11, the water blocking wall 11 has an upper end portion connected to the floating body 6 as described above and a lower end portion rotatably connected to the base portion 9 via the fixing device 7 to be raised. It is defeatable. Further, the water blocking wall 11 and the floating body 6 are connected to each other and function as a single water flow blocking gate, which is formed of, for example, a steel wall body. Water stop wall 1
As shown in FIG. 19, 1 is a plurality of skeletons 11a constructed by combining a plurality of H-section steels in a grid pattern, and each skeleton 11a.
a steel plate 11b attached to one surface of a. The water blocking wall 11 is subjected to an anticorrosion treatment so as not to rust even if it is installed in the sea for a long time.
Further, the water blocking wall 11 is formed by connecting a plurality of wall bodies each having a certain size.

The air supply / exhaust portion 13 sends air into the floating body 6 and discharges air from the floating body 6, as shown in FIG.
As shown in FIG. 3, the air supply / exhaust pump 13a, the air supply / exhaust pipe 13b and the like are provided. The supply / exhaust pump 13a is provided on a structure near the installation position of the floating body 6, for example, on a breakwater.
On the other hand, a supply / exhaust pipe 13b extending from the supply / exhaust pump 13a
Are guided from the inside of the adjacent breakwater to the space inside the foundation 9. An electromagnetic valve 13c, a flow meter 13d, a pressure sensor 13e, which will be described later, are provided in the air supply / exhaust pipe 13b in the base portion 9.
Is attached, the air supply / exhaust pipe 13b further protrudes above the foundation portion 9 and is arranged along the water blocking wall 11, and further,
The bottom end of the floating body 6 is inserted into the inside of the floating body 6 from the lower end of the floating body 6 and the end is arranged in the floating body 6. The air supply and exhaust of the air in the floating body 6 is also performed by the air supply / exhaust pipe 13b.

The pouring / draining section 14 is for pouring water into the floating body 6 or discharging the water in the floating body 6, and as shown in FIG. 24, a pouring pump 14a, a drainage pump 14b, an intake pipe 14c, It is provided with a water injection pipe 14d, a drain pipe 14e and the like.
The water injection pump 14 a is a pump that takes in water from the sea and injects the water into the floating body, and is provided inside the foundation part 9. A water intake pipe 14c for taking in water from the sea extends from the water injection pump 14a and opens into the sea, and an electromagnetic valve 14g described later is provided on the way. The water injection pipe 14d for injecting water into the floating body 6 extends from the water injection pump 14a, projects above the foundation portion 9, is arranged along the water blocking wall 11, and is further inserted from the lower end portion of the floating body 6 into the inside of the floating body 6. The terminal is arranged below the floating body 6, and two electromagnetic valves 14g and two flowmeters 14h described later are provided in the middle.

The drainage pump 14b is a pump for discharging the water in the floating body 6, and is provided inside the foundation portion 9.
The drainage pipe 14e for draining water from the inside of the floating body 6 also serves as a water injection pipe 14d up to the middle, and is branched by one electromagnetic valve 14g and connected to the drainage pump 14b. Further, a drain pipe 14e extending from the drain pump 14b is guided from the foundation portion 9 onto the breakwater and opens toward the sea. The flow of water injected into the floating body 6 and water discharged from the floating body 6 is controlled by switching the electromagnetic valve 14g.

In order to construct the floating gate apparatus 10 in the sea, first, as shown in FIG. 20, floor digging is performed on the construction sea area by the grab type dredger A. Here, the floor is dug in order to secure a sufficient water depth when the floating gate apparatus 10 is installed. A pump type dredger may be used for floor digging. After digging the floor, a reference pile 201, which serves as a reference for laying an underwater conducting frame 202 described later, is driven in, and the sand spreader B spreads sand substantially uniformly on the seabed. Next, the undercarriage 202 for guiding the position of the pile driven into the seabed is laid on the seabed along the reference pile 201 by using the crane carrier C.
After laying the underwater guide frame 202, the reference pile 201 is cut at the sea bottom, and the steel pipe pile 203 is driven into the seabed ground by the pile driving ship D according to the underwater guide frame 202.

Next, in order to make the heights of the heads of the steel pipe piles 203 uniform, concrete is placed on the heads of the steel pipe piles 203 by the concrete mixer ship E. Next, a hollow concrete block that will become the foundation portion 9 is sunk on the seabed by the suspension barge F. In order to prevent the foundation portion 9 from rising, concrete is placed inside the foundation portion 9 as a ballast, as shown in FIG.

Next, the gut ship and the tremie barge G are used to backfill the periphery of the foundation portion 9. In addition, at the time of backfilling, the seabed on one side of the base portion 9 is set substantially at the same height as the top of the base portion 9. The other side is backfilled to the extent that the base portion 9 is filled. Then, a mold for concrete is installed on the seabed on this one side, and concrete is poured by the concrete mixer ship E. On the other side, diving is applied by diving.

Next, the floating body 6 is installed on the base portion 9. Here, the method of transporting the floating body 6 from the dock on the land to the installation location will be described. As shown in FIG. 22, the suspension frame 204 is attached to the floating body 6 and the suspension frame 204 and the fixing device 7 are suspended by the hoist ship J. Temporarily put on the sea floor. Next, the floating body 6 is inflated and the fixing device 7 is attached to the suspending ship F.
While tossing, tow the ship to the installation location by tugboat I.
Then, after positioning the suspension barge F, the towing boat I pulls the floating body 6 to apply tension to the floating body 6, and the fixing device 7 is installed on the foundation portion 9 and fixed by the pin. On this occasion,
The floating gate apparatus 10 is constructed by installing the stability guide cable 82, the air supply / exhaust section 13, the pouring / draining section 14, and the like.

In order to construct the floating gate apparatus 10 on the route where the traffic of ships is heavy, as shown in FIGS. 23 (a) to 23 (c), the route is divided into three blocks and each block is divided into three blocks. Will be installed. As a result, the floating gate apparatus 10 can be constructed without hindering the navigation of the ship. Further, by allocating each work boat as shown in FIGS. 23D to 23G, any of the above-mentioned works can be performed in one block. In addition, FIG.23 (d) is floor digging,
FIG. 23 (e) is a pipe driving operation, FIG. 23 (f) is a foundation installation operation, and FIG. 23 (g) is a vessel allocation operation for concrete placing.

As shown in FIG. 24, the floating gate apparatus 10 constructed by the above procedure is managed by the control system 100, and serves as the overall monitoring camera 15, the ceiling level monitoring camera 16, and the internal pressure measuring means. Pressure sensor 1
3e, strain gauge 13f as strain measuring means, flowmeter 13
The electromagnetic valve 13c is controlled by the air amount control means 17 based on the detection result of d, and the electromagnetic valve 14g is controlled by the water amount control means 18 based on the detection result of the flow meter 14h. Further, the air amount control means 17 and the water amount control means 18
Is realized by the microcomputer executing a predetermined program. Each component of the control system 100 may be incorporated as a control unit of the floating gate device 10 as a part of the configuration of the floating gate device 10.

The overall monitoring camera 15 monitors the condition of the floating body 6 and the state of the entire floating body 6. For example, FIG.
As shown in 4, it is installed on the breakwaters on both banks. The image captured by the overall surveillance camera 15 is sent to the central surveillance room 19 so that the administrator can grasp the state of the floating body 6 without being near the floating gate apparatus 10. The top level monitoring camera 16 monitors the height of the top of the floating body 6, and like the overall monitoring camera 15, is installed on the breakwaters on both sides. The image captured by the top level monitoring camera 16 is sent to the central monitoring room 19, and the administrator determines whether the upper end of the floating body 6 is located at substantially the same height as the top of the breakwater.

The pressure sensor 13e measures the internal pressure in the floating body 6, and is attached, for example, in the middle of the supply / exhaust pipe 13b as shown in FIG. The floating body 6
To measure the internal pressure inside, the electromagnetic valve 13c attached to the supply / exhaust pipe 13b behind the pressure sensor 13e is closed and measured. The strain gauge 13f measures the strain of the water blocking wall 11, and is attached to the steel plate 11b of the water blocking wall 11 by welding. It should be noted that this strain gauge 13f is of a welding type and exhibits sufficient durability against heat during welding. The strain gauge 13f measures the strain of the water blocking wall 11, and the mooring tension of the floating body 6 is obtained from this strain. These data are sent to the central monitoring room 19 in real time so that the manager can always check the state of the floating body 6.

The flow meter 13d measures the amount of air injected into the floating body 6 and the amount of air discharged from the floating body 6.
The flowmeter 14h measures the amount of water injected into the floating body 6 and the amount of water discharged from the floating body 6. Solenoid valve 13
c and 14g are attached near the flowmeter 13d and the flowmeter 14h, and can be opened and closed by a control signal from the central monitoring room 19. The air volume control means 17 of the central monitoring room 19 takes in the data of the flow meter 13d, and the water volume control means 18 takes in the data of the water flow meter 14h, so that the floating body is in an appropriate state. The drainage unit 14 and the electromagnetic valves 13c and 14g are controlled. The floating gate apparatus 10 can be monitored not only from the central monitoring room 19 but also from a piping monitoring room (not shown) and a camera monitoring room (not shown).

Now, a procedure for raising the floating body 6 will be described. When there is a risk of increased water flow or high tide in the river, as shown in FIG. 25, the air supply / exhaust pump 13a is operated to inject air into the floating body 6 (S1, S2).
At this time, the flow meter 13d provided in the middle of the air supply / exhaust pipe 13b measures the amount of air injected into the floating body 6 and injects the air until a predetermined amount is reached to float the floating body 6 and the water blocking wall 11. (S3). In parallel with raising the floating body 6,
The drainage pump 14b is operated by the water amount control means 18,
Drain the water inside the floating body 6 that was supplied during the previous settling (S
4, S5). At this time, the flowmeter 14h provided in the middle of the drainage pipe 14e measures the amount of drainage, and when it reaches a predetermined amount, the drainage pump 14b is stopped (S6 to S8).

As described above, by injecting air into the floating body 6 and draining the water inside the floating body 6, a large buoyancy is generated and the floating body 6 and the water blocking wall 11 float (S).
9). The behavior of the floating body 6 is monitored by the overall monitoring camera 15 (S10). It should be noted that the monitoring is performed by the image taken by the overall monitoring camera 15. Next, the air amount control means 17 gives an instruction to measure the air amount and the internal pressure in the floating body 6 after floating, and the flow meter 13d and the pressure sensor 13e cause the air amount in the floating body 6 to change from the amount of air injected into the floating body 6. And the internal pressure of the floating body 6 is measured by the pressure sensor 13e installed in the supply / exhaust pipe 13b. Here, when the internal pressure of the floating body 6 is lower than a predetermined value, the air amount control means 17 operates the supply / exhaust pump 13a to supply air into the floating body 6 (S12). If the internal pressure is high, it is possible to exhaust the gas.

Further, the position of the floating body 6 after the floating body 6 has levitated is confirmed (S13). The position of the floating body 6 is as follows.
6 and (S14). The amount of air in the floating body 6,
When the internal pressure and the position of the floating body 6 reach a desired state, the air supply / exhaust pump 13a is stopped (S15). Even after the floating body 6 is levitated, the behavior, position, internal pressure, and air amount of the floating body 6 are continuously monitored. Further, the air amount control means 17 measures the strain of the floating body 6 by the strain gauge 13f attached to the water blocking wall 11 to obtain the mooring tension, and determines whether it is an appropriate value (S16).
Here, when the mooring tension greatly exceeds the appropriate value, the air amount control means 17 controls the air supply / exhaust pump 13a to exhaust the air inside the floating body 6.

Next, the procedure for storing the floating body 6 in the storage portion 91 will be described. When the river or the sea becomes calm, the air amount control means 17 causes the air supply / exhaust pump 13a as shown in FIG.
To discharge the air inside the floating body 6 (S17, S
18). At this time, it is performed while measuring the amount of air discharged from the inside of the floating body 6 by the flow meter 13d provided in the middle of the supply / exhaust pipe 13b. When the floating body 6 has contracted to some extent,
The electromagnetic valve 14g is operated to open the water intake pipe 14c and the injection pipe 14d, and water is injected into the floating body 6 (S19,
S20). At this time, the amount of water injected is measured by a flow meter 14h provided in the intake pipe 14c and the injection pipe 14d, and when the floating body 6 is almost filled with water, the electromagnetic valve 14g is operated to operate the intake pipe 14c and the injection pipe. 14d is closed (S21
~ S23).

As described above, the air is discharged from the inside of the floating body 6 and the buoyancy is lost by pouring water into the inside of the floating body 6, and the floating body 6 and the water blocking wall 11 are in a state of floating in the water. At this point, the winch 81 is activated and the stable guide wire 8
The floating body 6 is gradually settled toward the storage part 91 by 2 (S24, S25). The behavior of the floating body 6 that sinks is
It is monitored by the overall monitoring camera 15 (S26). Next, the amount of residual air in the floating body 6 after the floating body 6 has settled is confirmed (S27). The air amount control means 17 calculates the residual air amount in the floating body 6 from the discharged air amount and the injected water amount. Here, when the amount of air in the floating body 6 is larger than a predetermined value, the air amount control means 17 operates the air supply / exhaust pump 13a to exhaust the inside of the floating body 6 (S28).

Furthermore, the position of the floating body 6 after the floating body 6 has settled down is confirmed (S29). The position of the floating body 6 is confirmed by measuring the water depth using a sonar attached to the surveillance ship and by the overall surveillance camera 15 and the top level surveillance camera 16 (S30). Also, if necessary, the diver dives and visually confirms. When the amount of air in the floating body 6 and the position of the floating body 6 reach a desired state, the air supply / exhaust pump 13a is stopped (S3).
1). After the floating body 6 is settled, the weight of the water blocking wall 11 and the tension of the stable guide wire 82 can keep the water blocking wall 11 in a prone state so that the floating body 6 can be maintained in the storage portion 91.

For maintenance of the floating gate apparatus 10, first, as shown in FIG.
The installation sea area of 0 is temporarily closed, and the fixing device 7 is removed from the base portion 9 by underwater work (S32, S33). Next, the floating carrier 6, the fixing device 7, and the water blocking wall 11 are towed to the dock on land by the suspended barge (S34). After towing to the dock, the floating body 6 and the like are inspected and repaired (S35). As the inspection and repair, for example, repair and replacement of the airtight layer 61 and the abrasion resistant layer 62, replacement of the mooring line 63 and protective material 64, replacement of the anticorrosion electrode attached to the fixing device 7 and the water blocking wall 11, etc. (S36). After inspection and repair, the floating body 6,
The fixing device 7 and the water blocking wall 11 are towed to the installation position, and the fixing device 7 is attached to the foundation part 9 by underwater work (S37, S).
38).

According to the floating gate apparatus 10 of the present embodiment, since the floating body 6 is connected to the fixing device 7 via the water blocking wall 11, the floating gate apparatus 10 is installed at a deep water location, for example. The floating wall 6 without enlarging the floating body 6
It is only necessary to increase the length of 1, and it is not necessary to change the size of the floating body 6 according to the change in water depth. When the floating body 6 is stored in the storage portion 91, if the water blocking wall 11 is settled to the bottom of the water, the floating body 6 is entangled and settles down.
It suffices to attach the tip of the stable guide wire 82 to the water blocking wall 11, and it is not necessary to attach it to the floating body 6 which is easily damaged.

Further, since the floating body 6 is provided with the air bag 66, when the floating body type gate device 10 is installed between the existing breakwaters 92, for example, the air bag 66 is connected to both ends of the floating body 6 and the breakwater 92. You can fill the gap between.
Therefore, the waterproofness of the floating gate apparatus 10 can be improved.

Further, air is injected into the floating body 6 by the air supply / exhaust section 13 controlled by the air amount control means 17, and
By discharging the water in the floating body 6 by the pouring / draining unit 14 controlled by the water amount control means 18, the floating body 6 can be raised. The floating body 6 that has levitated can be monitored by the overall monitoring camera 15 and the top level monitoring camera 16, and
The state of the floating body 6 can be monitored by the pressure sensor 13e and the strain gauge 13f. Similarly, the air supply / exhaust unit 13 causes the floating body 6
The floating body 6 can be stored in the storage portion 91 by discharging the air therein and injecting water into the floating body 6 by the pouring / draining portion 14. Therefore, the operation required for ups and downs of the floating body 6 can be controlled by the air amount control means 17 and the water amount control means 18, so that the floating body 6 is always applied with proper buoyancy.
The amount of air and the amount of water inside can be maintained well.

The floating gate apparatus is not limited to this embodiment. For example, the material of the floating body is not limited to rubber or super fiber, but may be resin or the like. In addition, the water blocking wall is not limited to one made of H-shaped steel, but concrete or trees.
You may use fat etc. On the other hand, the floating gate apparatus can function as a dam by raising the floating body even if the river is not flooded.

[0096]

According to the invention described in claim 1, since the floating body can be contracted and stored when not in use, the storage portion can be made small.

According to the second aspect of the present invention, since the floating body is provided with the connecting means that is detachable from the base portion,
Maintenance work of the floating body underwater is not required, and work efficiency can be improved.

According to the third aspect of the present invention, the floating member connected to the water blocking member can be smoothly stored in the storage unit because the water blocking member sinks to the foundation portion by its own weight. Further, even if the floating gate apparatus is installed and the depth of water is deep, it is only necessary to lengthen the water blocking member without increasing the size of the floating body, so there is no need to change the size of the floating body in accordance with the change in water depth.

According to the fourth aspect of the present invention, since the water stop member is connected through the detachable connecting means, maintenance work of the floating body, the water stop member and the connecting means in water is unnecessary, and the work is performed. The efficiency can be improved.

According to the fifth aspect of the present invention, by injecting water into the floating body from the pouring / draining means, the water injected into the floating body is accumulated below the floating body, so that the water in the floating body is the weight of the floating body. Therefore, it is possible to increase the stability of the floating body.

According to the sixth aspect of the invention, the retracting means retracts the water blocking member in a predetermined rotation direction,
It is possible to prevent the water blocking member from rotating in the direction opposite to the direction in which the floating body is housed, and to reliably settle the water blocking member at the correct position.

According to the seventh aspect of the invention, the drawing means includes the wire connected to the free end of the water blocking member and the winch for winding the wire in the direction in which the floating body is housed. A simple device can serve as a drawing means for surely setting the water blocking member to the correct position.

According to the eighth aspect of the invention, since the floating body is provided with the airtight layer and the wear resistant layer, the airtight layer can stably maintain the air inside the floating body. Further, the wear resistant layer withstands impact due to water flow and prevents deterioration and damage of the airtight layer. Therefore, the life of the floating body can be extended.

According to the ninth aspect of the invention, since the outer surface of the floating body is provided with the reinforcing material, the floating body inside thereof can be protected.

According to the tenth aspect of the invention, since the reinforcing material is a flexible lattice-like member, it is deformed as the floating body expands and contracts, and the floating body and the reinforcing material are not separated from each other. Further, since the reinforcing material is a lattice-shaped member, the weight can be reduced and the floating body can be smoothly levitated.

According to the eleventh aspect of the present invention, since the protective material is provided through the reinforcing material, water and suspended matter in the vicinity of the water surface do not directly contact the wear resistant layer. Therefore, it is possible to prevent the wear resistant layer from being damaged and extend the service life of the floating body. Further, since the plurality of protective materials for covering the wear resistant layer are provided, if the protective material is damaged, only the damaged portion can be replaced, so that the replacement work is easy and the economy is excellent.

According to the twelfth aspect of the present invention, when a plurality of floating gate devices are arranged side by side and installed between the existing breakwaters, the auxiliary floating bodies are expanded so that the auxiliary floating bodies are formed between the floating bodies or between the floating body and the breakwater. You can fill the gap. Therefore, the water blocking performance of the floating gate apparatus can be improved.

According to the thirteenth aspect of the present invention, a floating body type gate device having a desired width and size can be constructed by connecting a plurality of floating bodies with a joint portion. Therefore, the floating gate apparatus can be installed in various areas.

According to the fourteenth aspect of the invention, when the internal pressure of the floating body obtained by the internal pressure measuring means is lower than a predetermined value, the air amount control means supplies air to the floating body.
The floating body can always maintain proper buoyancy.

According to the fifteenth aspect of the invention, when the strain of the water blocking member obtained by the strain measuring means is larger than a predetermined value, the air amount controlling means constantly exhausts air from the floating body, Since proper buoyancy can be maintained, each part of the device is protected and maintainability is improved.

[Brief description of drawings]

FIG. 1 is a side sectional view for explaining a state when a floating gate device according to a first embodiment of the present invention is used.

FIG. 2 is a side sectional view for explaining a state when the floating gate apparatus in the above embodiment is not used.

FIG. 3 is a front view for explaining the floating gate apparatus in the above embodiment.

FIG. 4 is a plan view for explaining the floating gate device in the above embodiment.

FIG. 5 is a vertical cross-sectional view for explaining a structure of a floating body of the floating gate apparatus according to the above embodiment.

FIG. 6 is a side view for explaining the structure of the connection device of the floating gate device in the above embodiment.

FIG. 7 is a front view for explaining the structure of the connection device for the floating gate device in the above embodiment.

FIG. 8 is a transverse cross-sectional view for explaining the structure of the joint portion of the floating gate device in the above embodiment.

FIG. 9 is a side view for explaining the structure of the rotating portion of the floating gate apparatus in the above embodiment.

FIG. 10 is a front view for explaining the structure of the rotating portion of the floating gate apparatus according to the above embodiment.

FIG. 11 is a side sectional view for explaining a state of the floating gate apparatus according to the second embodiment of the present invention when it is used and when it is not used.

FIG. 12 is a perspective view for explaining the structure of the airtight layer of the floating gate device in the above embodiment.

FIG. 13 is a vertical cross-sectional view for explaining the structure of the airtight layer of the floating gate device according to the above embodiment.

FIG. 14 is a vertical cross-sectional view for explaining the structures of the airtight layer and the wear resistant layer of the floating gate device in the above embodiment.

15A and 15B are a plan view and a side sectional view for explaining a structure of a protective member of the floating gate apparatus according to the above embodiment.

FIG. 16 is a side sectional view for explaining a structure of a floating body mooring portion of the floating body type gate device in the embodiment.

FIG. 17 is a plan view for explaining the installation position of the airbag of the floating gate apparatus in the above embodiment.

18A and 18B are a side sectional view and a front view for explaining the structure of the fixing device for the floating gate device according to the embodiment.

FIG. 19 is a side view for explaining the structure of the water blocking wall of the floating gate device in the above embodiment.

FIG. 20 is a schematic diagram for explaining an installation procedure of the floating gate apparatus in the above embodiment.

FIG. 21 is a schematic diagram for explaining an installation procedure of the floating gate apparatus in the above embodiment.

FIG. 22 is a schematic diagram for explaining a procedure for towing a floating body of the floating gate apparatus according to the above embodiment.

FIG. 23 is a schematic diagram for explaining a procedure for constructing the floating gate apparatus in the above embodiment.

FIG. 24 is a schematic diagram for explaining a control system for the floating gate apparatus in the above embodiment.

FIG. 25 is a flowchart for levitating the floating body in the above embodiment.

FIG. 26 is a flowchart when the floating body according to the above-described embodiment is settled in the storage portion.

FIG. 27 is a flowchart for maintenance of the floating gate apparatus in the above embodiment.

[Explanation of symbols]

1,10 Floating gate device 2,6 Floating body 21,61 Airtight layer 22,62 Wear resistant layer 23,63 Reinforcement material 24,64 protective material 27 Joint 3 connection device 4,8 retractor 7 Fixing device 11 water stop wall 13d, 14h Flow meter 13c, 14g solenoid valve 13e Pressure sensor 13f strain gauge 15 Overall surveillance camera 16 Top level monitoring camera 17 Air amount control means 51, 91 storage 66 airbags

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masahiro Tomita             Nishimatsuken 1-20-10 Toranomon, Minato-ku, Tokyo             Inside the corporation F-term (reference) 2D019 AA33 AA35 AA37

Claims (15)

[Claims] 1. A floating gate device installed on the bottom of a water for damming a water flow or a wave, the base being installed on the bottom of the water, and a part of the base being fixed to the base and protruding above the water when expanded. An inflatable and bag-like floating body, an air supply / exhaust means for supplying / exhausting air to / from the floating body, a storage section capable of storing the floating body, and a retracting means for collecting the floating body into the storage section during contraction. Floating gate device. 2. The floating gate apparatus according to claim 1, further comprising a connecting means for detachably attaching the floating body to the base portion. 3. A floating gate device installed on the bottom of a water for damming water flow or waves, comprising a foundation part installed on the bottom of the water, and a stopper for damming the water flow that is connected to the foundation part and can be tilted. A water member, an inflatable and inflatable bag-like floating body that is connected to the free end of the water blocking member and projects above the water when inflated, an air supply / exhaust means for supplying / exhausting air to / from the floating body, and the floating body can be stored. Floating gate apparatus, which is provided with a large storage section. 4. The floating gate apparatus according to claim 3, further comprising connecting means for detachably attaching the water blocking member to the base portion. 5. The floating gate apparatus according to claim 1, further comprising a pouring / draining unit for pouring / draining water into the floating body. 6. The floating gate apparatus according to claim 3, further comprising a retracting unit that retracts a free end of the water blocking member in a direction in which the floating body is accommodated. Gate device. 7. The floating gate apparatus according to claim 6, wherein the drawing means winds the wire connected to the free end of the water blocking member and the wire in a direction in which the floating body is housed. A floating gate apparatus, which comprises a winch. 8. The floating gate apparatus according to claim 1, wherein the floating body is provided with an airtight layer having airtightness and is provided on an outer surface of the airtight layer and has wear resistance. A floating gate apparatus comprising a wear resistant layer. 9. The floating gate apparatus according to claim 8, wherein the outer surface of the floating body is provided with a reinforcing material for reinforcing the floating body. 10. The floating gate apparatus according to claim 9, wherein the reinforcing member is a flexible lattice member. 11. The floating gate apparatus according to claim 8, wherein a plurality of protective materials covering the wear resistant layer are provided via the reinforcing material. Floating gate device. 12. The floating gate apparatus according to claim 3, wherein one side end of the floating body is provided with an auxiliary floating body capable of expanding and contracting. A floating gate device characterized by the above. 13. The floating body type gate apparatus according to claim 1, wherein the floating body is provided with a joint portion for connecting a floating body of another adjacent floating body type gate apparatus. Floating gate device. 14. The floating gate apparatus according to claim 1, wherein an internal pressure measuring unit for measuring an internal pressure of the floating unit, and an internal pressure of the floating unit obtained by the internal pressure measuring unit have a predetermined value. A floating gate apparatus comprising: an air amount control means for controlling the air supply / exhaust means so as to supply air to the floating body when the value is lower than the value. 15. The floating gate apparatus according to claim 2, wherein strain measuring means for measuring the strain of the water blocking member and strain of the floating body obtained by the strain measuring means are larger than a predetermined value. In this case, the floating gate apparatus is provided with an air amount control means for controlling the air supply / exhaust means so as to exhaust air from the floating body.