JP5066658B2 - Water channel opening and closing device and water channel drought method - Google Patents

Description

The present invention can be used for waterway restoration work, waterway switching flow path change work, or waterway seismic reinforcement work without stopping unstoppable open-type or culvert-type water flow that always flows with water or sewage. The present invention relates to a water channel opening / closing device and a water channel drought method capable of bringing a work area where the above-described construction is performed into a drought state using the water channel switching device.

Patents that allow construction without stopping the water flow in the water or sewage pipe when the pipeline of the water or sewage is damaged due to an earthquake, disaster or accident, etc. Pipeline for water supply or sewage using an internal conduit type pressure actuated opening / closing heavy pressure lid device integrated with a pipe switchgear described in Document 1 or a water supply or sewage line switchgear described in Patent Document 2. There is a restoration method, and there is a tubular variable pipe and a sewage pipe temporary pipe construction method described in Patent Document 3.
Patent No.2900022 JP2007-002644 Japanese Patent Application No. 2007-208581

However, the water supply described in Patent Document 1 corresponding to restoration work for damaged parts of water supply or sewerage water supply or sewage, work to replace old pipes, or work to change flow paths due to the new construction of pipes. Alternatively, the pipe opening / closing device used in the sewage pipe restoration method, or the inner conduit type pressure actuated opening / closing heavy pressure lid device integrated with the water / sewage pipe opening / closing device described in Patent Document 2 is both circular. Since it is cylindrical, the construction part can be applied only to a circular cylindrical shape, and the cross-sectional shape of the construction part is not compatible with BOX type, egg type, or horseshoe type waterways. .

In addition, in recent years, the development of infrastructure associated with urban development has led to the relocation and construction of waterways associated with subway construction, or the relocation, new construction of waterways associated with construction of elevated viaducts associated with urban development, or old waterways prepared for earthquakes. Seismic reinforcement works are urgently needed and waterways are being developed. Because the water for daily use and rainwater that cannot be cut off flows in the part where the above construction is performed, and the size of the channel cross section is designed and constructed assuming the maximum flow rate flowing through the water channel, It is conceivable that the amount of running water in a large channel will be large. Therefore, when performing the above construction, it is necessary to make the work area drought by a method that assumes a large amount of flowing water, but in the conventional method, the cross-sectional shape of the pipe section of the construction part is applied to a circular cylindrical shape In addition, there is a problem that a necessary work area in a water channel in which a large amount of running water is assumed, such as a BOX type, an egg type, and a horseshoe type, cannot be drought.

In order to solve the above-mentioned problem, a main body of a water channel opening and closing device comprising a panel having a shape approximating the cross section of each water channel in an open channel or underwater channel where there is always flowing water and a large amount of flowing water is assumed (FIG. 1). 2 and 3), a main body fixing jig (FIGS. 23 and 24) arranged along both the side wall of the water channel and the main body of the water channel opening / closing device, and the main body fixing jig on the side wall of the water channel It has a jig fixing hardware (FIG. 6) for fixing, a metal fitting for combining the water channel opening / closing device main body and the main body fixing jig (FIGS. 7 and 8), and has a function of closing the water channel. The present invention has invented a water channel opening and closing device characterized in that if a water channel opening and closing device is used, the flowing water of the portion of the water channel to be restored can be temporarily clogged or flown.

First, the main body fixing jig disposed along both the side wall 26 of the water channel and the main body of the water channel opening / closing device is perpendicular to the length direction of the main body fixing jig. An L-shape having a surface facing the side wall is provided, and a water stop rubber 19 is integrally attached to each of the surface facing the water channel opening / closing device main body side and the water channel side. In order to fix the main body fixing jig to the opposing wall surfaces of the water channel, jig fixing hardware is used. The jig fixing hardware includes a first through hole 22 for pushing a bolt and a second through hole 20 provided with a female screw. The bolt 28b pushed through the first through hole is screwed into a female screw hole 27 provided in advance on the wall side of the water channel, and the jig fixing hardware is fixed to the water channel wall surface. Next, when a main body fixing jig is attached to a jig fixing hardware fixed to the wall surface of the water channel, and a bolt 29 screwed into a second through hole provided in the jig fixing hardware is tightened, as shown in FIG. The main body fixing jig is pressed against the wall surface, the water-stopping rubber integrally attached to the main body fixing jig is pressed against the wall side, and is compressed and brought into close contact with each other, and the main body fixing jig is attached to the opposite wall surface. Can be occluded (FIG. 12).

Next, a metal fitting for combination is used to attach the water channel opening / closing device main body to the main body fixing jig fixed to the wall surface facing the portion to be restored of the water channel with the jig fixing hardware. The metal fitting for merging includes a fourth through hole 25 in which a third through hole 23 for pushing a bolt is provided with at least one female screw. First, as shown in FIG. 9, a bolt 28a pushed through the third through hole is screwed into a female screw hole 11 provided in the water channel opening / closing device body in advance, and the water channel opening / closing device body is fixed. . Next, the water stop rubber integrally attached to the main body fixing jig is attached to the main body fixing jig by pressing the main body fixing jig against the main body of the water channel opening / closing device with a bolt 30 screwed into the fourth through hole. The water stop rubber pressed against the water channel opening / closing device main body and integrally attached to the main body fixing jig and the water channel opening / closing device main body are compressed and adhered, and the space between the water channel opening / closing device main body and the main body fixing jig may be closed. Yes (FIG. 13).

The water channel opening / closing device body has water stop rubbers 9 and 12 attached to the lower part or the lower and upper parts of the water channel opening / closing device body. Further, the water channel switch main body has a water channel switch main body upper part 2 and a water channel switch main body lower part 1, and the contact between the water channel switch main body upper part 2 and the water channel switch main body lower part 1 is connected by a hinge 14 and integrated. Yes. In addition, a structure in which a double-acting hydraulic cylinder connecting the water channel opening / closing apparatus main body upper part 2 and the water channel opening / closing apparatus main body lower part 1 can be attached is attached to the water channel opening / closing device main body, and a detachable double-acting hydraulic cylinder 13 is attached. In the state, it is possible to raise the water channel opening / closing device main body 2 up to the vertical by the double power of the double-acting hydraulic cylinder or to bring it down.

In the case where the water channel is a culvert type, as described in 0006, the main body fixing jig is fixed to the opposing wall surfaces of the portion to be restored of the culvert type water channel with the jig fixing hardware and bolts (FIG. 12). Then, as described in 0007, the operation of pressing and fixing the main body fixing jig to the water channel opening / closing device main body with the uniting hardware and bolts is performed by removing the detachable double-acting hydraulic cylinder 13 described in 0008, The water channel opening / closing device main body upper portion 2 of the water channel opening / closing device main body is tilted downward (FIG. 13). After the operation is completed, a detachable double-acting hydraulic cylinder described in 0008 is attached to the water-channel opening / closing apparatus main body, and the water-channel opening / closing apparatus main body upper part 2 is raised by the double power of the double-acting hydraulic cylinder. The channel opening / closing device main body has an upper portion of the channel opening / closing device main body upper portion 2 by making the height dimension of the channel opening / closing device body larger than the height of the ceiling in the culvert type water channel of the portion where the channel opening / closing device body is attached. When the water stop rubber 9 attached to the ceiling contacts the ceiling portion of the underdrain type waterway, and the upper part 2 of the waterway switchgear main body 2 is raised vertically by the power of the double-acting hydraulic cylinder, the waterway switchgear main body is moved downward. The waterproof rubbers 9 and 12 attached to the upper and lower portions of the water channel switch main body are compressed and adhered to the ceiling portion and the floor portion of the culvert type water channel, and the water channel switch device main body and the culvert type water channel It is possible to close the space between the ceiling portion and the floor portion (FIG. 15). In the case where the water channel is an open type, the space between the water channel switch main body and the floor can be closed by applying a load to the upper portion of the water channel switch main body lower portion 1 of the water channel switch main body.

Therefore, when the water channel is a culvert type, as described in 0006, if the body fixing jig is fixed to the opposing wall surface of the portion to be restored of the culvert type water channel with the jig fixing hardware and bolt, The water-stopping rubber integrally attached to the main body fixing jig is pressed against and pressed against the wall side, and the space between the opposing wall surface and the main body fixing jig of the portion to be restored of the culvert channel is closed. Next, as described in 0007, if the main body fixing jig is pressed against the water channel opening / closing device main body with the uniting hardware and bolt, the water stop rubber and the water channel opening / closing device main body integrally attached to the main body fixing jig are It is compressed and adhered, and the water channel opening / closing device main body and the main body fixing jig are also closed. In the following procedure, as described in 0009, if the upper part 2 of the waterway switch body is raised vertically by the double power of the double acting hydraulic cylinder attached to the waterway switch body, the upper part of the waterway switch body The waterproof rubbers 9 and 12 attached to the lower part are compressed and adhered to the ceiling part and the floor part of the culvert channel and can close the ceiling and floor part of the culvert channel, and the channel is opened. In the case of a saddle type, if the upper part of the lower part 1 of the waterway switch main body of the waterway switchgear body is weighted, the part between the waterway switchgear main body and the floor portion can be closed, so that the waterway is restored. The flowing water is shielded by the water channel opening and closing device, and the flowing water in the water channel can be temporarily blocked.

Further, the water passage opening / closing device body has a pressure-operated opening / closing resistance having a function of opening / closing the water passage through hole 17 by at least one of the water passage through hole 17 and at least one of a hydraulic device and a hydraulic device. A heavy pressure lid 3 is attached to a first tube 16 that is joined to a portion of the water passage through hole via a reinforcing rib. As described in 0010, in the state where the flowing water of the portion to be restored of the water channel is shielded by the water channel opening / closing device, the pressurizing operation opening / closing heavy pressure-resistant lid 3 is opened by at least one of a hydraulic device and a water pressure device. If so, the shielded running water can flow (FIG. 13). Moreover, if all the pressurization opening / closing heavy pressure-resistant lids 3 of the water channel opening / closing device main body are closed by at least one of a hydraulic device and a water pressure device, the flowing water can be shielded (FIG. 14).

The channel opening / closing device main body of the channel opening / closing device has a second tube 6 joined to the channel opening / closing device main body by a reinforcing rib. As shown in FIG. 17, a pair of the water channel opening and closing devices are installed at respective opposing positions of the restored portion of the water channel, and the middle of the second cylindrical tube of each of the installed water channel opening and closing device bodies is shown in FIG. It can be connected by connecting pipes 38, 39, and 40 so as to be integrated.

The waterway opening and closing device according to any one of claims 1 to 7, wherein the waterway opening and closing device described in 0011 is provided at an upstream portion and a downstream portion of a restoration portion of an open channel type or underdrain type water channel having a constantly flowing water. The pressure-acting opening / closing heavy pressure-resistant lid 3 attached to the main body is opened and installed so as to face each other as shown in FIG. Next, as shown in FIG. 18, connecting pipes 38, 39, and 40 are connected to the second cylindrical pipe of the main body of the water channel opening / closing device at an intermediate portion of the water channel opening / closing device as shown in FIG. 18. Then, if closing all of said pressurized hydraulic opening閉耐pressure lid 13 held by the water channel opening and closing device body, running water recovery portion of the Hirakimizo type or culvert type water channel flows inside the connecting pipe, the Hirakimizo A water channel drought method characterized in that a water-free drought area 45 can be secured in an intermediate portion of the water channel opening and closing device installed so as to face an upstream portion and a downstream portion of a restoration portion of a mold or underwater channel.

As described above, the cross-section of the channel is shown in the restoration construction part of the open channel or underdrain channel where there is always flowing water and a large amount of flowing water, which has been difficult in the past by inventing the channel opening and closing device of the present invention. By installing a waterway switch with an approximate shape, it is possible to stop or flow the water in the waterway, so that the infrastructure development accompanying urban development described in 0004 in the waterway restoration method using the waterway switch, Or, there is always running water due to seismic reinforcement work of old waterways prepared for earthquakes, etc., and the work area for construction at the restoration part of the waterway where a large amount of water flow is assumed is drought and a safe and sanitary work environment Therefore, it is possible to plan the work procedure plan in advance and proceed with the construction of the restoration part of the waterway systematically.

Below, the waterway restoration method using the waterway opening and closing device of the present invention will be described. Here, a method of shutting off the flowing water in the restoration work area of the underdrain type waterway and making the work area of the restoration part water-free. explain. Further, the description described in 0032 to 0045 is a method for changing the flow path of the drainage channel using the water channel restoration method.

As shown in FIG. 17, an opening 41 for carrying a water channel opening / closing device and the like is provided at the upper part of the water channel 48 to be restored, and an opening 42 for ventilation ventilation and a worker entrance / exit is provided.

Next, as shown in FIG. 17, the ceiling hoist travel beam 32 for the ceiling travel hoist 43 is installed in the ceiling portion of the existing water channel interior 31 to be restored as shown in FIG. To do.

Next, the overhead traveling hoist 43 is attached to the overhead hoist traveling beam 32 as shown in FIGS.

First, tightening bolts 28b for fixing the main body fixing jig shown in FIGS. 23 and 24 with the jig fixing hardware 21 at predetermined positions of the wall surfaces 26 facing the upstream portion and the downstream portion of the portion to be restored of the water channel. The female anchor 27 is hit for receiving.

Next, using the overhead traveling hoist 43, the main body fixing jigs are moved to respective predetermined positions in the upstream portion and the downstream portion of the portion to be restored of the water channel, and as described in 0006, the jig fixing hardware 21 is moved. The bolt 28b is pushed through the first through-hole and is screwed into a female anchor 27 provided in advance on the wall side of the water channel to fix the jig fixing hardware at a predetermined position on the wall surface of the water channel. Next, a main body fixing jig is attached to a jig fixing metal fixed to the wall surface of the water channel, and a bolt 29 screwed into a second through hole provided in the jig fixing metal is tightened. As shown in FIG. A fixing jig is pressed against the wall surface of the water channel, and the water stop rubber integrally attached to the main body fixing jig is pressed against the water channel wall so as to be compressed and brought into close contact with each other. The gap is closed (FIG. 12).

Next, the double-acting hydraulic cylinder 13 attached to the upper part 2 of the waterway opening / closing device of the waterway opening / closing device main body installed upstream of the portion to be restored is removed, and the waterway opening / closing as shown in FIG. The apparatus upper part 2 is hung on the overhead traveling hoist 43 in a state where the apparatus upper part 2 is folded from the hinge part 14.

In addition, when the waterway switch body is moved or installed in the state described in 0021, there is always flowing water in the waterway to be restored. 17 is opened to reduce the resistance of flowing water as shown in FIG. 17, and the main body fixed to each of the upstream and downstream portions of the wall where the water channel is to be restored are fixed to each other at predetermined positions. Move to the jig position.

Next, the main body fixing jig installed and fixed as described in 0020 and the water channel opening / closing device main body are temporarily combined, and as described in 0007, the bolt 28a is pushed through the third through hole of the metal fitting for combining, The water channel opening / closing device body is screwed into a female screw hole 11 to temporarily fix the water channel opening / closing device body to the body fixing jig. Next, the main body fixing jig is pressed and temporarily fixed to the main body of the water channel opening and closing device with a bolt 30 screwed into the fourth through hole . (Fig. 13)

Next, the connecting pipe (left) 38 having the fastening bolt receiver, the connecting pipe (right) 40 having the fastening bolt receiver and the connecting ring 39 for connecting the push wheel are moved by the overhead traveling hoist 43, and FIG. Temporary placement at the indicated position.

Next, if the same operation as the procedure described in the above-mentioned 0021 to 0023 is performed on the main body of the waterway opening and closing device installed in the downstream part of the part to be restored, the waterway will be restored as shown in FIG. It becomes the state by which the water channel opening and closing device was each installed in the upstream part and downstream part of the part to make.

Next, as shown in FIG. 17, the connecting pipes 38, 40 and the push wheel connecting connecting pipe 39 are assembled using the overhead traveling hoist 43 between the two water channel opening / closing devices installed.

First, as shown in FIG. 22, the connecting pipe (left) 38 having the second cylindrical pipe 6 portion of the water channel opening / closing device main body and the fastening bolt receiving metal 53 is connected and tightened with the fastening bolt metal 52, The connecting pipe (right) 40 having the second cylindrical pipe 6 of the other water channel switch body and the fastening bolt metal 53 is connected and tightened with the fastening bolt metal 52, and further, the connecting pipe (left) 38 and the connecting pipe are connected. (Right) A push ring water stop rubber 57 is fitted into each of the joint portions 40, and a unilateral universal fixed fastening bolt receiver 56 integrated with the push ring 55 and a unidirectional link integrated with the push ring connecting pipe 39. If the connection bolts are tightened with the fixing bolts 54, the water passage opening / closing device main body, the connecting pipe (left) 38, the press ring connecting connecting pipe 39 and the connecting pipe (right) 40 at both ends are integrated with a water-stopped connection. As shown in 18

Next, the overhead traveling hoist rail 32 is removed to the position shown in FIG.

Next, manually raise the channel opening / closing device upper part 2 of each channel opening / closing device installed in the upstream part and the downstream part of the part to be restored, and reattach the double-acting hydraulic cylinder 13 which has been removed. , 0008, the double channel hydraulic cylinder attached to the water channel opening / closing device main body raises the water channel opening / closing device main body upper part 2. The main body of the waterway opening / closing device is the water stop attached to the upper part of the upper part 2 of the waterway opening / closing device body by making the height dimension of the waterway opening / closing device body larger than the height of the ceiling in the waterway of the portion where the waterway opening / closing device body is mounted When the rubber 9 comes into contact with the ceiling portion in the water channel and the water channel opening / closing device body upper part 2 is raised vertically by the double power of the double-acting hydraulic cylinder, the water channel switching device body is pressed downward, and the upper part of the water channel switching device body The waterstop rubbers 9 and 12 attached to the lower portion are compressed and adhered to the ceiling portion and the floor portion of the water channel, and block between the water channel opening / closing device body and the ceiling portion and the floor portion of the water channel (FIG. 15).

Next, the main body fixing jig is pressed against the main body of the water channel opening / closing device with the bolt 30 screwed into the fourth through hole 25 of the metal fitting for combination described in 0023, and the bolt 30 of the temporarily fixed portion is tightened. Tighten. The water stop rubber integrally attached to the main body fixing jig is pressed against the main body of the water channel opening / closing device, and the water stop rubber integrally attached to the main body fixing jig and the main body of the water channel opening / closing device are compressed and adhered, and the main body of the water channel opening / closing device is fixed to the main body. Block between the jigs. The four sides of the ceiling, floor, and both wall surfaces of the water channel to be restored are stopped by the body fixing jig and the water channel switch body.

Next, if all the pressure-actuating opening / closing heavy pressure-resistant lids 13 of the respective waterway opening / closing device main bodies installed in the upstream part and the downstream part of the part to be restored are closed, the restoration part of the waterway If the flowing water flows through the connecting pipe and the residual water between the waterway switchgear installed so as to face the upstream part and the downstream part of the restoration part of the waterway is eliminated, the restoration work area 45 is in a state where there is no water As shown in FIG.

In addition, a method for changing the channel from the existing channel to the new channel by connecting the new channel to the existing channel while securing the flowing water of the existing channel that cannot be shut off using the above-mentioned channel restoration method will be described below. .

As shown in FIG. 19, in order to connect the new water channel 49 to the existing water channel 48, it is necessary to eliminate the flow of water at the connection portion between the existing water channel and the new water channel and to secure the work area 50. First, as shown in FIG. 19, a temporary drainage channel 47 having a length capable of securing the work area 50 is installed using a waterway restoration method.

Next, as shown in FIG. 19, the same work as described in the water channel drought methods 0016 to 0031 is performed in the upstream portion and the downstream portion of the existing water channel 48 where both ends of the temporary drainage channel 47 are joined. Thus, the work area 45 without water is created in the upstream part and the downstream part of the existing water channel.

Next, the wall 51 of the existing water channel in the work area 45 part where there is no water in the upstream part and the downstream part of the joint part between the temporary water channel 47 and the existing water channel 48 is disassembled, and preparations for switching the flowing water to the temporary water channel 47 are made. .

First, as shown in FIG. 19, all the pressurization opening / closing heavy pressure-resistant lids 3 of the water channel opening / closing device main body 46A and the water channel opening / closing device main body 46B installed in the downstream portion of the existing water channel 48 are opened and allowed to flow.

Next, the connecting pipes 38, 39, and 40 connected to the water channel opening / closing device main body 46A and the water channel opening / closing device main body 46B installed in the downstream portion of the existing water channel 48 are removed.

Next, the water channel opening / closing device main body 46B installed in the downstream portion of the existing water channel 48 is removed.

Similarly, as shown in FIG. 19, all the pressurization opening / closing heavy pressure-resistant lids 3 of the waterway opening / closing device main body 46A and the waterway opening / closing device main body 46B installed in the upstream portion of the existing waterway 48 are opened and allowed to flow. .

Next, the connecting pipes 38, 39, and 40 connected to the water channel opening / closing device main body 46A and the water channel opening / closing device main body 46B installed in the upstream portion of the existing water channel 48 are removed.

Next, the water channel opening / closing device main body 46 </ b> A installed in the upstream portion of the existing water channel 48 is removed.

Next, the second tubular pipe 6 portion attached to the water channel opening / closing device main body 46B in the upstream portion of the existing water channel 48 and the water channel opening / closing device main body 46A in the downstream portion is closed with a sealing lid, and each of the above-mentioned pressurizing operation opening / closing resistances. If the heavy pressure lid is closed, as shown in FIG. 20, the flowing water in the existing water channel flows through the temporary drainage channel 47, and the remaining water in the work area 50 part is removed, and the connection part between the existing water channel 48 and the new water channel 49 is free of water. A work area 50 is secured.

Through the above operation, a new water channel 49 is constructed in the work area 50 without water and joined to the existing water channel 48.

Next, after the new water channel 49 is constructed and the joining work is completed in the existing water channel 48, the wall of the opening portion opened upstream of the joint portion between the existing water channel and the temporary drainage channel is restored. All the pressurization opening / closing heavy pressure resistant lids 3 of the water channel opening / closing device main body 46B installed in the upstream portion of the water are opened, and water flows into the new water channel.

Next, as shown in FIG. 19, using the water channel drought method , the wall restoration work area part of the opening part 51 opened on the upstream side of the joint part of the existing water channel and the temporary drainage channel is the same as the above work. The work for changing the flow path is completed as shown in FIG. 21 by securing the work area without water, restoring the wall of the opening in the upstream part of the existing water channel, and removing all the equipment for the water channel drought method .

In recent years, environmental issues have been taken up as an important issue, but the aging of water and sewage systems, which have a long history, is also an important part of environmental issues, and the need for seismic reinforcement in preparation for earthquakes is also the same for sewers. In particular, the seismic reinforcement of large box culverts requires urgency, and infrastructure development associated with urban development is expected to continue to be developed as a lifeline indispensable to the lives of citizens. However, the major problem of the sewerage system is that it is impossible to cut off water for domestic use, and construction work must be carried out. Especially, the construction of sewers where rainwater and sewage flow together has a large flow rate of the construction part. However, there are some constructions that are difficult due to the influence of the weather, and the industrial use value is great because the waterway restoration method of the present invention can be used for such constructions.

It is a water channel opening-and-closing apparatus main body 46 front view. It is a water channel opening / closing apparatus main body 46 side view. FIG. 6 is a rear view of the water channel opening / closing device body 46. It is a front view of a water channel opening / closing apparatus main body fixing jig. (Referred to as body fixing jig) It is sectional drawing of a water channel opening / closing apparatus main body fixing jig. It is a figure of a water channel opening / closing apparatus main body fixing jig fixed hardware. (This is called jig fixture) It is a top view of the metal fitting for uniting which unites a main body fixing jig and a water channel switch main body. (Referred to as hardware for merging) 7 is a side view of the united hardware. It is a fragmentary sectional view in the state where a body fixing jig was attached to a water channel of a restoration part with a jig fixing hardware, and a water channel opening and closing device body was attached to a body fixing jig with a metal fitting for combination. It is a figure at the time of attaching a water channel opening / closing apparatus to the water channel of a restoration part, and making a work area a state without water. It is the figure which provided the temporary drainage channel in the existing water channel, and set the water channel opening and closing device and the connecting tubular pipe as shown in FIG. 18 in the connection part of the existing water channel and the temporary water drainage channel. It is the figure which changed the flow path of the existing drainage channel from the existing drainage channel to the temporary drainage channel. It is the figure where construction of the new waterway was completed and the existing waterway and the new waterway were connected. It is detailed sectional drawing which set the water channel opening and closing device and the connecting pipe . It is a top view of a main body fixing jig. It is a four-plane development view of a body fixing jig.

1 Lower part of waterway opening and closing device 2 Upper part of waterway opening and closing device (movable part)
3 Pressurization opening / closing heavy pressure resistant lid 4 Reinforced hinge 5 Double acting hydraulic cylinder (for opening / closing heavy pressure pressure opening / closing heavy pressure lid)
6Cylinder pipe for connecting pipe (second cylinder pipe)
7 Tie reinforcement rib (front part)
8 holes (through hole for connecting pipe connection)
9 Upper water blocking rubber 10 Hanging piece 11 Combined hardware bolt receiver (female)
12 Lower water stop rubber 13 Double acting hydraulic cylinder (for folding the upper part of the main body 2)
14 Reinforced hinges (for folding the top 2 of the main unit)
15 Tie reinforcement rib (back part)
16 Steel pipe (open hole) (first tube)
17 holes (circular holes for water flow) (through holes for water flow)
18 L-shaped steel material 19 Still water rubber 20 Bolt holder (female) (second through hole)
21 Jig fixing hardware 22 Round hole (first through hole)
23 Round hole (third through hole)
24 Metal fitting 25 Bolt receptacle (female) (4th through hole)
26 Waterway wall portion 27 Hole-in anchor 28a Tightening bolt 28b Tightening bolt 29 Main body fixing jig tightening bolt 30 Waterway opening / closing device main body tightening bolt 31 Waterway interior 32 Beam for electric hoist travel 33 Electric hoist 34 Hoist 35 Chain block 36 Beam 37 Suspension Hook 38 Connecting tubular tube with bolt receiving bracket (left)
39 Cylindrical tube 40 for connecting the push ring Connecting tubular tube with bolt clamp for fastening (right)
41 Opening 42 for loading 42 Opening (for blowing)
43 Ceiling traveling hoist body 44 Flowing water 45 Water-free work area portion 46 Water channel switch body 46A Upstream partial water channel switch body 46B Downstream partial water channel switch main body 47 Temporary drainage channel 48 Existing water channel 49 New water channel 50 Existing water channel and new water channel Connection work area 51 The wall of the connection part of the existing waterway and the temporary drainage channel (part where the wall is dismantled)
52 Tightening bolt metal fitting 53 Tightening bolt receiving metal piece 54 One side free fixing fastening bolt 55 Push ring 56 One side free fixing fastening bolt receiver 57 Push ring waterstop rubber

Claims (7)

A water channel opening and closing device main body comprising a panel having a shape approximating an open channel type or a culvert type water channel cross section, a main body fixing jig arranged so as to follow both the side wall of the water channel and the water channel switching device main body, A water channel opening / closing device having a function of closing the water channel, having a jig fixing metal material for fixing the body fixing jig to the water channel side wall, and a metal fitting for combining the water channel opening / closing device body and the main body fixing jig. In the device, a cross section perpendicular to the length direction of the main body fixing jig has an L shape having a surface facing the water channel opening / closing device main body and the water channel side wall, and faces the water channel opening / closing device main body side and the water channel side. the respective surfaces, waterproofing rubber is mounted integrally with the main body fixing jig, further lower portion of the water passage switching device body or the water stop rubber is attached to the lower and upper, Waterway switchgear characterized. The water channel opening / closing device main body has a pressure-acting opening / closing heavy pressure-resistant lid 3 having a function of opening / closing the water passage through hole by at least one of the water passage through hole 17 and at least one of a hydraulic device and a hydraulic device. 2. The water channel opening and closing device according to claim 1, further comprising: a first tube 16 joined to a portion of the water passage through hole via a reinforcing rib. The water channel opening / closing device main body includes a connecting pipe connecting through hole 8 for connecting a connecting pipe forming a water channel between the two water channel opening / closing device main bodies arranged opposite to each other in the water channel, and the connection. The water channel opening and closing device according to claim 1, further comprising a second cylindrical tube 6 fitted to the inner periphery of the pipe connection through hole. The movable part attached to the upper part of the water channel opening and closing device main body so as to be able to fall down, and a double-acting hydraulic cylinder that drives the movable part between its standing position and a fallen position. The water channel opening and closing device according to any one of 1 to 3. The jig fixture includes a first through hole 22 for pushing a bolt and a second through hole 20 provided with a female screw, and a bolt 28b pushed through the first through hole is The bolt 29 screwed into the female screw hole 27 provided in advance on the wall side of the water channel and screwed into the second through hole is fixed by pressing the main body fixing jig against the wall surface. 5. The water channel opening and closing device according to claim 1 , having a function of pressing the water stop rubber integrally attached to a jig against the wall side . The metal fitting 24 includes a fourth through hole 25 in which at least one third through hole 23 for pushing a bolt is provided and a female screw is provided, and the third through hole is pushed through the third through hole . The bolt 28a is screwed into a female screw hole 11 provided in advance in the water channel opening / closing device main body, and the bolt 30 screwed into the fourth through hole is used to connect the main body fixing jig to the water channel opening / closing device main body. 6. The water channel according to claim 1 , wherein the water channel has a function of pressing the water stop rubber integrally attached to the main body fixing jig against the water channel opening / closing device main body by being pressed against the water channel opening / closing device main body. Switchgear. The water channel opening and closing device according to claim 3 is installed in an intermediate portion of the water channel opening and closing device installed so as to face the upstream part and the downstream part of the restoration part of the open channel type or under channel type water channel with always flowing water, respectively. connect the connecting pipe 38, 39, 40 to the second cylindrical tube switchgear body has, if closed all the pressurized working open閉耐pressure lid 3 with said water channel opening and closing device main body, the Hirakimizo type or running water recovery portion of the culvert type water channel flows inside the connecting pipe, the intermediate portion having no water area 45 of the waterway closing apparatus installed to respectively face the upstream and downstream portions of the recovery portion of the waterway Waterway drought method characterized by being able to ensure .