JP6856353B2 - Waterway - Google Patents

Description

INDUSTRIAL APPLICABILITY The present invention does not cause any trouble as a water channel as a result of being able to minimize the amount of deformation of the water channel body of the abdominal material portion due to ground movement in a water channel, particularly a U-shaped water channel made of corrugated steel plate. It relates to a water channel that can maintain the cross section of the water channel and can prevent damage and water leakage of the water channel body.

Conventionally, for example, aqueducts such as irrigation canals, agricultural canals, and industrial canals have U-shaped canals constructed in grooves dug in the ground.

Patent Document 1 discloses an example of a water channel. Hereinafter, this waterway is referred to as a conventional waterway, and will be described with reference to the drawings.

8 is a front view showing a conventional water channel, FIG. 9 is a sectional view taken along line AA of FIG. 8, and FIG. 10 is a line-of-sight view taken along line BB of FIG.

8 to 10, reference numeral 21 denotes a water channel main body, which is formed by bending a corrugated steel plate as a corrugated steel plate in a U shape in a direction orthogonal to the wavy direction. Reference numeral 22 denotes a raised material made of angle steel attached to the upper edge of the water channel main body 21 along the longitudinal direction of the water channel main body 21, and reference numeral 23 denotes a cutting made of angle steel between the raised members 22. It is a girder attached via a beam attachment member 24.

The girder 23 is welded between the girder attachment members 24 with the top thereof facing up, and the girder attachment member 24 is attached to the abdominal member 22 by bolts and nuts 25.

According to the conventional water channel described above, since the girder 23 is attached between the abdominal members 22 with its top facing up, the snow slides down along the slope of the girder 23 during the snowfall period. It does not deposit on the girder 23. As a result, it is not necessary to increase the cross-sectional area of the girder 23 in order to prevent the girder 23 from being deformed due to the snow load, which has an advantage of being economical.

Jikkenhei 1-167487

According to the conventional water channel, it is not necessary to increase the cross-sectional area of the girder 23 in order to prevent the girder 23 from being deformed due to the snow load, which is economical, but has the following problems.

The corrugated steel plate constituting the water channel main body 21 is thin and lightweight, and relatively easily responds to ground fluctuations. Therefore, since external pressure such as earth pressure is shared in a well-balanced manner, the water channel main body 21 is a flexible structure that can withstand a large load even if it is a thin-walled material.

In this way, the corrugated steel plate canal is an effective canal structure when constructing on soft ground such as rural areas, but if the ground liquefaction or unjust subsidence occurs due to a large-scale earthquake or the like, the ground will fluctuate. Along with this, the main body of the waterway also deforms.

As a result, in the normal state shown in FIGS. 11 (a) to 11 (c), as shown in FIGS. 12 (a) to 12 (c), the water channel main body 21 of the abdominal raising material 22 portion is deformed vertically and horizontally. As a result, the cross section of the waterway may be narrowed, the main body of the waterway may be damaged, or water may leak, and the function as a waterway may be impaired.

11A is a cross-sectional view showing a normal waterway, FIG. 11B is a plan view showing a normal waterway, and FIG. 11C is a side view showing a normal waterway. FIG. 12 (a) is a cross-sectional view showing a state when the water channel body of the abdominal material portion is deformed vertically and horizontally, and FIG. 12 (b) is a cross-sectional view showing the state when the water channel body of the abdominal material portion is deformed vertically and horizontally. FIG. 12 (c), which is a plan view showing a state at that time, is a side view showing a state when the water channel main body of the abdominal member portion is deformed vertically and horizontally.

In FIGS. 11 (a) to 11 (c) and 12 (a) to 12 (c), 21 is a water channel body constructed in a groove excavated in the ground 26, and 22 is an upper edge portion of the water channel body 21. It is an uplifting material made of angle steel and attached along the longitudinal direction of the water channel main body 21.

Therefore, an object of the present invention is that in a U-shaped water channel made of corrugated steel plate, the amount of deformation of the water channel body of the abdominal material portion due to ground movement can be minimized, and as a result, the water channel does not hinder. It is an object of the present invention to provide a water channel which can maintain a water channel cross section and can prevent damage and water leakage of the water channel body.

The present invention has been made to achieve the above object, and is characterized by the following.

The invention according to claim 1 is attached to a water channel main body made of a corrugated steel plate bent in a U shape in a direction orthogonal to the wavy direction and an upper edge portion of the water channel body along the longitudinal direction of the water channel body. In a water channel composed of a raised material and a girder attached between the raised materials, the raised material is easily deformed by a load due to ground movement or the like, so that the raised material is easily deformed. It is characterized in that it is attached to the water channel body via a member capable of reducing the deformation of the beam.

The invention according to claim 2 is characterized in that, in the invention according to claim 1, the corrugated steel sheet is made of a corrugated steel sheet.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein the moment of inertia of area with respect to the horizontal direction of the raising material is larger than the moment of inertia of area with respect to the horizontal direction of the water channel body. It has characteristics.

The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the abdominal raising material is made of H-shaped steel.

The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the deformation of the abdominal raising material can be reduced by easily deforming due to a load due to the ground movement or the like. The formed member is characterized in that it is attached to the water channel body and the abdominal raising material by bolts and nuts.

The invention according to claim 6 is the invention according to any one of claims 1 to 4, wherein the deformation of the uplifting material can be reduced by easily deforming due to a load due to the ground movement or the like. The formed member is attached to the water channel body and the raising material by bolts and nuts, and the bolt holes formed in the water channel body and the raising material are characterized in that they are larger than the diameter of the bolt. It is a thing.

The invention according to claim 7 is the invention according to any one of claims 1 to 4, wherein the deformation of the uplifting material can be reduced by easily deforming due to a load due to the ground movement or the like. The member that can be formed is a member that is attached to the water channel body and the raising material by bolts and nuts, and is easily deformed by a load due to the ground movement or the like to reduce the deformation of the raising material. The formed bolt hole is characterized in that it is larger than the diameter of the bolt.

The invention according to claim 8 is the invention according to any one of claims 1 to 7, wherein the deformation of the uplifting material can be reduced by easily deforming due to a load due to the ground movement or the like. The formed member is characterized in that it is made of an L-shaped steel plate.

The invention according to claim 9 is characterized in that, in the invention according to any one of claims 1 to 8, the water channel body is made of a stainless steel plate.

The invention according to claim 10 is the invention according to claim 9, wherein the deformation of the abdominal raising material can be reduced by easily deforming due to a load due to the water channel body and the ground movement or the like. Is characterized in that it is attached via an insulating plate.

According to the present invention, a water channel body made of a corrugated steel plate bent in a U shape in a direction orthogonal to the wavy direction, and an abdomen attached to the upper edge of the water channel body along the longitudinal direction of the water channel body. In a waterway composed of a slab and a girder attached between the swelling materials, by attaching the swelling material to the waterway body via a buffer member, the waterway of the swelling material part due to ground fluctuations. The amount of deformation of the main body can be minimized. As a result, it is possible to maintain a waterway cross section that does not hinder the waterway, and it is possible to prevent damage to the waterway body and water leakage.

Further, according to the present invention, the above-mentioned effect can be obtained by using an H-shaped steel or the like whose cross-sectional performance is larger than the cross-sectional performance of the water channel body as the abdominal raising material.

Further, according to the present invention, a desired cushioning effect can be obtained by using an easily deformable L-shaped steel plate or the like as the cushioning member.

Further, according to the present invention, the cushioning member is attached to the water channel body and the raising material by bolts and nuts, and the bolt holes formed in the water channel body and the raising material are formed larger than the diameter of the bolt. The desired buffering effect can be obtained.

Further, according to the present invention, the cushioning member is attached to the water channel body and the raising material by bolts and nuts, and the bolt holes formed in the cushioning member are formed to be larger than the diameter of the bolt, whereby a desired cushioning effect is obtained. Can be obtained.

Further, according to the present invention, by making the water channel body made of stainless steel plate, the plate thickness of the water channel body can be reduced while maintaining the strength of the water channel body at a predetermined strength, so that the weight of the water channel body can be reduced. As a result, it is possible to prevent subsidence of the waterway when the waterway is constructed on soft ground.

It is a partial plan view which shows the waterway of this invention. It is a partial front view which shows the waterway of this invention. It is sectional drawing of the line AA of FIG. It is a detailed view of part a of FIG. It is a detailed view of part b of FIG. It is a detailed view of part c of FIG. It is a figure which shows the deformed state of the water channel of this invention, (a) is a sectional view, (b) is a plan view, (c) is a side view. It is a front view which shows the conventional waterway. FIG. 8 is a cross-sectional view taken along the line AA of FIG. It is a BB line-of-sight view of FIG. It is a figure which shows the shape of a water channel in normal times, (a) is a sectional view, (b) is a plan view, and (c) is a side view. It is a figure which shows the state which the water channel main body of the abdominal raising material part was deformed up and down, left and right, (a) is a sectional view, (b) is a plan view, (c) is a side view.

One embodiment of the waterway of the present invention will be described with reference to the drawings.

1 is a partial plan view showing the water channel of the present invention, FIG. 2 is a partial front view showing the water channel of the present invention, FIG. 3 is a sectional view taken along line AA of FIG. 1, and FIG. 4 is a of FIG. A detailed view of the part, FIG. 5 is a detailed view of the part b of FIG. 1, and FIG. 6 is a detailed view of the part c of FIG.

In FIGS. 1 to 6, reference numeral 1 denotes a water channel main body made of a corrugated steel plate bent in a U shape in a direction orthogonal to the wavy direction. As the corrugated steel sheet, a corrugated steel sheet or the like can be used. The water channel main body 1 is composed of a plurality of water channel sections 2 formed by bolting two corrugated steel plates 1a and 1b curved in an L shape and bolted along the longitudinal direction of the water channel (). (See FIG. 3).

Reference numeral 3 denotes an abdominal raising material attached to the upper edge of the water channel main body 1 along the longitudinal direction of the water channel main body 1. As the abdominal raising material 3, a material whose cross-sectional performance is larger than that of the water channel main body 1 is used. In this example, the abdominal raising material 3 is made of H-shaped steel, and its cross-sectional performance is, for example, about 10 times larger than the cross-sectional performance of the water channel body 1.

As a result, the strength of the waterway body 1 is increased, so that the deformation of the waterway body 1 due to ground movement or the like can be reduced by a synergistic effect with the cushioning effect of the cushioning member 4 described later. The abdominal members 3 are bolted to each other via the joint plate 11 (see FIG. 4).

As shown in FIGS. 4 and 5, the abdominal raising material 3 is bolted to the water channel main body 1 via the cushioning member 4. In this example, the cushioning member 4 is made of an L-shaped steel plate and is bolted to the web 3b of the raising member 3 made of H-shaped steel. The cushioning member 4 has a material or a plate thickness that can be easily deformed by a load acting on the attachment portion between the abdominal raising material 3 and the water channel main body 1 due to ground fluctuation or the like.

In this way, by attaching the abdominal raising material 3 to the water channel main body 1 via the deformable cushioning member 4, as shown in FIGS. 7 (a) to 7 (c), the abdominal raising material 3 portion due to ground movement. The amount of deformation of the water channel body 1 can be minimized.

As a result, it is possible to maintain a cross section of the water channel that does not hinder the water channel, and it is possible to prevent damage to the water channel body 1 and water leakage.

In FIGS. 7A to 7C, 1 is a water channel body constructed in a groove excavated in the ground 13, and 3 is attached to the upper edge of the water channel body 1 along the longitudinal direction of the water channel body 1. It is a raised material made of H-shaped steel.

In the above example, the cushioning effect of the cushioning member 4 is exerted by reducing the plate thickness of the cushioning member 4 or by selecting a material. In addition to this method, the cushioning member 4 is formed in the water channel body 1. The bolt hole 5 (see FIG. 5) may be formed larger than the diameter of the bolt 7, and the bolt hole 6 (see FIG. 5) formed in the raising material 3 may be formed larger than the diameter of the bolt 8. ..

Further, even if the bolt hole 9a formed in the vertical portion of the cushioning member 4 is formed larger than the diameter of the bolt 7, and the bolt hole 9b formed in the horizontal portion of the cushioning member 4 is formed larger than the diameter of the bolt 8. Good.

In either case, when a load acts on the attachment portion between the abdominal raising material 3 and the waterway main body 1 due to ground movement or the like, the attachment portion will escape, so that the amount of deformation of the abdominal raising material 3 portion of the waterway main body 1 Can be minimized.

As a result, it is possible to maintain a cross section of the water channel that does not hinder the water channel, and it is possible to prevent damage to the water channel body 1 and water leakage.

Reference numeral 10 denotes a girder attached between the abdominal members 3. As shown in FIGS. 3 and 6, the cutting beam 10 is bolted between the inner flanges 3a of the H-shaped steel as the raising member 3 facing each other via the fixing plate 14.

According to the present invention, as the uplifting material 3, the cross-sectional performance thereof is larger than the cross-sectional performance of the water channel body 1, for example, since H-shaped steel is used, the strength of the water channel body 1 is increased, and as a result, the cutting beam 10 is formed. It is possible to increase the interval (see FIG. 1).

By making the water channel body 1 made of stainless steel plate, the thickness of the water channel body 1 can be reduced while maintaining the strength of the water channel body 1 at a predetermined strength. Therefore, the weight of the water channel body 1 should be reduced. As a result, it is possible to prevent subsidence of the waterway when the waterway is constructed on soft ground. In this case, in order to prevent contact between dissimilar metals of steel and stainless steel, bolts are connected via the insulating plate 12 as shown in FIGS. 4 and 5.

As described above, according to the present invention, the water channel body 1 made of a corrugated steel plate bent in a U shape in a direction orthogonal to the wavy direction, and the longitudinal length of the water channel body 1 at the upper edge of the water channel body 1. In a water channel composed of a raising material 3 attached along the direction and a girder 10 attached between the raising materials 3, the raising material 3 is passed through a buffer member 4 to the water channel main body 1. By attaching to, the amount of deformation of the water channel main body 1 of the abdominal material 3 portion due to ground fluctuation can be minimized. As a result, it is possible to maintain a waterway cross section that does not hinder the waterway, and it is possible to prevent damage to the waterway body and water leakage.

Further, according to the present invention, the above-mentioned effect can be obtained by using H-shaped steel or the like whose cross-sectional performance is larger than the cross-sectional performance of the water channel main body 1 as the abdominal raising material 3.

Further, according to the present invention, a desired cushioning effect can be obtained by using an easily deformable L-shaped steel plate or the like as the cushioning member 4.

Further, according to the present invention, the cushioning member 4 is attached to the water channel main body 1 and the raising material 3 with bolts and nuts, and the bolt holes 5 and 6 formed in the water channel main body 1 and the raising material 3 are bolted 7. , A desired buffering effect can be obtained by forming the diameter larger than 8.

Further, according to the present invention, the cushioning member 4 is attached to the water channel body 1 and the raising member 3 with bolts and nuts, and the bolt holes 9a and 9b formed in the cushioning member 4 are larger than the diameters of the bolts 7 and 8. By forming, a desired buffering effect can be obtained.

Further, according to the present invention, by making the water channel body 1 made of a stainless steel plate, the plate thickness of the water channel body 1 can be reduced while maintaining the strength of the water channel body 1 at a predetermined strength. As a result, it is possible to prevent subsidence of the waterway when the waterway is constructed on soft ground.

1: Channel body 1a, 1b: Corrugated steel plate 2: Channel section 3: Raising material 3a: Inner flange 3b: Web 4: Buffer member 5: Bolt hole (bolt hole formed in the channel body)
6: Bolt hole (bolt hole formed in the abdominal material)
7: Bolt (bolt that fixes the waterway body and cushioning member)
8: Bolt (bolt that fixes the cushioning member and the raising material)
9a: Bolt hole (bolt hole formed in the vertical portion of the cushioning member)
9b: Bolt hole (bolt hole formed in the horizontal part of the cushioning member)
10: Cutting beam 11: Joint plate 12: Insulating plate 13: Ground 14: Fixing plate 21: Waterway body 22: Raising material 23: Cutting beam 24: Cutting beam mounting material 25: Bolts and nuts 26: Ground

Claims (10)

A water channel body made of a corrugated steel plate bent in a U shape in a direction orthogonal to the waving direction, and an uplifting material attached to the upper edge of the water channel body along the longitudinal direction of the water channel body. In a waterway composed of a girder attached between the abdominal members
The water channel is characterized in that the abdominal raising material is attached to the water channel main body via a member capable of reducing the deformation of the abdominal raising material by being easily deformed by a load due to ground movement or the like. .. The water channel according to claim 1, wherein the corrugated steel plate is made of a corrugated steel plate. The water channel according to claim 1 or 2 , wherein the moment of inertia of area with respect to the horizontal direction of the raising material is larger than the moment of inertia of area with respect to the horizontal direction of the water channel body. The water channel according to any one of claims 1 to 3, wherein the abdominal raising material is made of H-shaped steel. The member capable of reducing the deformation of the abdominal raising material by being easily deformed by a load due to the ground movement or the like is attached to the waterway main body and the abdominal raising material by bolts and nuts. The water channel according to any one of claims 1 to 4, which is characteristic. A member capable of reducing the deformation of the abdominal material by being easily deformed by a load due to the ground movement or the like is attached to the waterway main body and the abdominal material by bolts and nuts, and the waterway main body is attached. The water channel according to any one of claims 1 to 4, wherein the bolt hole formed in the raised material is larger than the diameter of the bolt. A member capable of reducing the deformation of the raising material by being easily deformed by a load due to the ground movement or the like is attached to the water channel body and the raising material by bolts and nuts, and the ground movement is caused. The bolt holes formed in the member capable of reducing the deformation of the raising material by being easily deformed by a load such as, etc., are larger than the diameter of the bolt, according to any one of claims 1 to 4. The waterway described in any one. Any one of claims 1 to 7, wherein the member capable of reducing the deformation of the abdominal raising material by being easily deformed by a load due to the ground movement or the like is made of an L-shaped steel plate. The waterways listed in one. The water channel according to any one of claims 1 to 8, wherein the water channel body is made of a stainless steel plate. The present invention is characterized in that the water channel main body and the member capable of reducing the deformation of the abdominal raising material by being easily deformed by a load due to the ground movement or the like are attached via an insulating plate. The waterway according to 9.

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