JP6978275B2 - Waterway - Google Patents

Description

INDUSTRIAL APPLICABILITY The present invention does not cause any trouble as a waterway as a result of being able to minimize the amount of deformation of the waterway body of the abdominal material portion due to ground movement in a waterway, particularly a U-shaped waterway made of corrugated steel plate. The cross section of the channel can be maintained, damage to the channel body and water leakage can be prevented, and as a result of reducing the number of joints of corrugated steel sheets, watertightness is improved, construction cost and construction time are reduced, and further. It is related to waterways that improve maintainability as a result of eliminating the catching of vegetation and dust.

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 into a U shape in a direction orthogonal to the corrugating direction thereof. Reference numeral 22 is 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 23 is a cut 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 mounting members 24 with its top facing up, and the girder mounting member 24 is attached to the abdominal raising member 22 by bolts and nuts 25.

According to the conventional waterway described above, since the girder 23 is attached between the abdominal lumbers 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 by the snow load, which has an advantage of being economical.

Jikkenhei 1-167487 Gazette

According to the conventional waterway, 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 changes in the ground. 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 improper 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 uplifting material portion is deformed vertically and horizontally.

In FIGS. 11 (a) to 11 (c) and FIGS. 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 abdominal raising material made of angle steel attached along the longitudinal direction of the water channel main body 21.

Therefore, an object of the present invention is to minimize the amount of deformation of the waterway body of the abdominal material portion due to ground movement, and as a result, it is possible to maintain a waterway cross section that does not hinder the waterway, and the waterway body. As a result of reducing the number of joints of corrugated steel sheets, watertightness is improved, construction costs and construction time are reduced, and vegetation and dust are not caught. The purpose is to provide a waterway with improved maintainability.

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 water channel main body has a plurality of water channel sections obtained by bending a single corrugated steel plate into a U shape. A member that is connected along the longitudinal direction of the waterway body, and the uplifting material can be easily deformed by a load due to ground movement or the like to reduce the deformation of the uplifting material. It is characterized in that it is attached to the water channel main body via the above.

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.

According to the third aspect of the present invention, in the invention according to the first or second aspect, the moment of inertia of area with respect to the horizontal direction of the raised 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 characterized in that, in the invention according to any one of claims 1 to 3, the uplifting 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 main 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 waterway body and the uplifting material by bolts and nuts and can be easily deformed by a load due to ground movement or the like to reduce the deformation of the uplifting 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 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 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 of claim 10 can be had us to the invention of claim 9, to reduce the deformation of the wale member by easily deformed by a load due to the ground fluctuations and the water channel body The member 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 corrugation 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 cushioning member, the waterway of the swelling material part due to ground deformation 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 water channel body is formed by connecting a plurality of water channel sections obtained by bending a single corrugated steel plate into a U shape along the longitudinal direction of the water channel body. As a result of reducing the number of joints of the steel sheets, the watertightness is improved, the construction cost and the construction time are reduced, and as a result of eliminating the catching of vegetation and dust, the maintainability is improved.

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 the subsidence of the canal when the canal is constructed on the 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. FIG. 3 is a cross-sectional view taken along 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 deformation 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, (c) is a side view. It is a figure which shows the state which the waterway main body of the abdominal lumber part was deformed up and down, left and right, (a) is a sectional view, (b) is a plan view, (c) is a side view.

An 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. The 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 body made of a corrugated steel plate bent in a U shape in a direction orthogonal to the wavy direction. As the corrugated steel plate, a corrugated steel plate or the like can be used. The water channel body 1 is composed of a plurality of water channel sections 2 formed by bending one corrugated steel plate 1a into a U shape and bolting them along the longitudinal direction of the water channel body 1 (FIG. 3). reference).

In this way, the water channel body 1 is formed by connecting a plurality of water channel sections 2 formed by bending one corrugated steel plate 1a into a U shape by bolts and nuts along the longitudinal direction of the water channel body 1. As a result of reducing the number of connecting points of corrugated steel sheets with bolts and nuts, the watertightness is improved, the construction cost and construction time are reduced, and the bolts and nuts for connection are caught by plants and debris. As a result, maintainability is improved.

Reference numeral 3 is an abdominal raising material attached to the upper edge of the water channel body 1 along the longitudinal direction of the water channel 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 uplifting material 3 is made of H-shaped steel, and its cross-sectional performance is, for example, about 10 times higher than the cross-sectional performance of the water channel main body 1.

As a result, the strength of the water channel body 1 is increased, so that the deformation of the water channel 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 lumbers 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 material 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 movement or the like.

In this way, by attaching the abdominal raising material 3 to the waterway main body 1 via the deformable cushioning member 4, as shown in FIGS. 7A to 7C, 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 waterway cross section that does not hinder the waterway, and it is possible to prevent damage to the waterway body 1 and water leakage.

In FIGS. 7 (a) to 7 (c), 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, but other than this method, it is formed in the water channel main 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, 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. May be good.

In either case, when a load is applied to the mounting portion between the abdominal raising material 3 and the waterway body 1 due to ground movement or the like, the mounting portion is evacuated. 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 1 and water leakage.

Reference numeral 10 is a girder attached between the abdominal lumbers 3. As shown in FIGS. 3 and 6, the cutting beam 10 is bolted via a fixing plate 14 between the facing inner flanges 3a of the H-shaped steel as the raised material 3.

According to the present invention, as the uplifting material 3, the cross-sectional performance thereof is higher 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 becomes possible to widen the interval (see FIG. 1).

By making the water channel body 1 made of stainless steel plate, the plate thickness of the water channel body 1 can be reduced while the strength of the water channel body 1 is maintained at a predetermined strength, so that the weight of the water channel body 1 can be reduced. As a result, it is possible to prevent the subsidence of the canal when the canal is constructed on soft ground. In this case, in order to prevent the dissimilar metals of steel and stainless steel from coming into contact with each other, bolting is performed 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 corrugation direction, and the longitudinal length of the water channel body 1 at the upper edge portion of the water channel body 1. In a water channel composed of an abdominal raising material 3 attached along a direction and a cutting beam 10 attached between the abdominal raising materials 3, the abdominal raising material 3 is passed through a cushioning member 4 to a water channel main body 1. By attaching to, the amount of deformation of the waterway body 1 of the abdominal raising material 3 portion due to the ground movement 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, a plurality of water channel sections 2 formed by bending a corrugated steel plate 1a into a U-shape are formed by bolts and nuts along the longitudinal direction of the water channel body 1. By connecting the corrugated steel sheets 1a, the number of joints of the corrugated steel sheet 1a is reduced, resulting in improved watertightness, reduction of construction cost and construction time, and catching of plants, dust, etc. on the bolts and nuts for connection. As a result, maintainability is improved.

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 main body 1 and the raising material 3 by 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 the strength of the water channel body 1 is maintained at a predetermined strength. As a result, it is possible to prevent the waterway from sinking when the waterway is constructed on soft ground.

1: Waterway body 1a: Corrugated steel plate 2: Waterway section 3: Raising material 3a: Inner flange 3b: Web 4: Cushioning member 5: Bolt hole (bolt hole formed in the waterway body)
6: Bolt hole (bolt hole formed in the abdominal raising 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 shock absorber)
9b: Bolt hole (bolt hole formed in the horizontal part of the shock absorber)
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 main body made of a corrugated steel plate bent in a U shape in a direction orthogonal to the corrugation direction, and a raising 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 waterway body waterways sections bending a single corrugated steel in a U-shape, a plurality consists a concatenation along the longitudinal direction of the waterway body, said wale material, by ground fluctuations A water channel characterized by being attached to the water channel body via a member capable of reducing the deformation of the abdominal raising material by being easily deformed by a load. 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 characterized. A 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, and the waterway main body. 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 raised 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 raised 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 abdominal raising material by being easily deformed by a load such as, etc., are larger than the diameter of the bolt, according to 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 raised 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 lumber 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.

Images