JP2008163708A - Method of forming water channel for road surface, and intermediary water channel block and culvert type water channel block for it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of forming a water channel for a road surface, and an intermediary water channel block and a culvert type water channel block for it having improved construction work efficiency and excellent water flow efficiency like drainage efficiency. <P>SOLUTION: When the water channel blocks having the water channels therein extending in the longitudinal direction, respectively, are connected to each other in a manner of communicating the water channels to each other, the intermediary water channel block 3 is interposed between the water channel block 1 and the culvert type water channel block 2. The water channel block 1 has the water channel 1a having a predetermined cross sectional shape, and the culvert type water channel block 2 has the water channel 2a formed to have a substantially flat and deformed cross-sectional shape which is lower than the cross-sectional height of the water channel 1a. The intermediary water channel block 3 has the water channel 3a having the cross sections at a longitudinal end and the other end which are formed to be the same as the cross sections of the water channels of the water channel block 1 and the culvert-type water channel block 2, respectively, in a manner that the cross section of the water channel 3a is gradually deformed over the longitudinal direction. The amount of flow in the water channels 1a, 3a, 2a of the water channel blocks 1, 3, 2 are set to be substantially same, positions of bottom parts of the water channels 1a, 3a, 2a are aligned in the longitudinal direction, and an upper surface 2b of the culvert type water channel block 2 is lowered compared to an upper surface 1b of the water channel block 1 by a predetermined length. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method of forming a road surface waterway facility and its relay waterway block and underdrain type waterway block. More specifically, for example, at a road intersection or the like, a sideband embedded in a road along a roadside or a roadway boundary. The road surface canal is designed to cross the intersecting road without losing its drainage capacity easily and continuously without damaging its road function, safety and landscape. The present invention relates to a forming method, a relay waterway block, and a culvert type waterway block used for the method.

  Conventionally, for example, a cylindrical concrete waterway block having a waterway along the longitudinal direction inside is connected along the roadside or pedestrian road boundary, and the upper surface is exposed to the road surface. As a result, the water channel for the side belt along the longitudinal direction of the road is formed by being buried in the road, and the continuous waterway in the longitudinal direction is blocked by the road intersecting with the same at the intersection of the road. In such cases, roads that intersect to cross the crossing road without exposing the waterway to the road surface from the aspects of road functions such as ensuring drainage gradient on the road pavement surface and preventing the exposure of unnecessary objects, safety and landscape A deep mass block is buried in the road at the end of the water channel facing the river, and the end of the water channel block is connected to the upper part of the mass block. A drainage pipe embedded with a covering to cross the road is passed between the lower parts of the mass block, so that a waterway facility for the road surface crossing the intersection road is formed. Yes.

However, such conventional road surface canal facilities have a deep-bottomed mass block embedded in the road at the end of the water channel block facing the road that intersects the water channel, and the end of the water channel block is connected to the upper part of the mass block. In order to form a drainage pipe embedded with a earth covering to cross the road between the lower parts of the mass block that is embedded opposite to the road, the channel block is formed. Unlike connecting in a straight line and continuously, it is necessary to dig deeper to connect the drain pipe that should have a deep-bottomed mass block and earth covering on the road. The construction is cumbersome and time-consuming, and there is a problem that the construction workability is inferior, and the water channel is bent into a concave shape by the mass block and the drain pipe connected to the water channel block, and the bottom part is not aligned linearly. Drainage of water channel block has is impaired, drainage was a problem to decrease.
The present invention has been made in view of such conventional problems, and does not require time and labor for construction, improves the workability of the construction, and forms a waterway facility for road surfaces with good flowability such as drainage capacity, and It is an object to provide a relay channel block and a culvert type channel block.

  In order to solve the above-mentioned problems, the method for forming a waterway facility for road surface according to the present invention includes a waterway block having a waterway 1a having a predetermined cross-sectional shape when a waterway block having a waterway along the longitudinal direction is joined to the waterway in communication with each other. 1 and a culvert channel block 2 having a substantially flat and different shape whose cross section is lower than the cross section height of the water channel 1a of the water channel block 1, the cross section of the water channel 3a is at one end in the longitudinal direction. The other end of the waterway block 1a, 3a, 3a, 2a, 3a, 3a, 2a, 3a, 2a, 3a, 2a, 3a, The flow rate in 2a is made substantially equal, the bottoms of the water channels 1a, 3a, 2a are aligned in the longitudinal direction, and the upper surface 2b of the underdrain type water channel block 2 is located closer to the upper surface 1b of the water channel block 1 And forms height of lower.

  In addition, in order to form a waterway facility for a road surface, the relay waterway block of the present invention includes a waterway block 1 having a predetermined shape such as a circular cross section of the waterway 1a along the inner longitudinal direction, and a waterway 2a along the inner longitudinal direction. The cross-section of the water channel 3a along the longitudinal direction of the inside is interposed at one end in the longitudinal direction. The water channel block 1 has the same cross section as that of the culvert channel block 2 at the other end, and is gradually deformed in the longitudinal direction, and the flow rate in the water channel 3a is the water channel of the water channel block 1 and the culvert channel channel block 2. The flow rate of 1a, 2a is substantially the same, and the bottom of the water channel 3a is substantially linear in the longitudinal direction so as to be continuous with the water channel 1a, 2a bottom of the water channel block 1 and the underdrain type water channel block 2. That.

  The underdrain channel block of the present invention is indirectly joined to the channel block 1 having a predetermined shape such as a circular cross section of the channel 1a along the inner longitudinal direction so as to form a channel facility for the road surface. In addition, the cross section of the water channel 2a along the inner longitudinal direction has a substantially flat shape having a substantially mountain-shaped upper portion, and the flow rate of the water channel 2a is substantially equal to the flow rate of the water channel 1a of the water channel block 1. The bottom of the water channel 2a is substantially linear in the longitudinal direction so as to align with the bottom of the water channel 1a of the water channel block 1, and the upper surface 2b has a predetermined thickness between the upper surface of the water channel 2a and the upper surface 1b of the water channel block 1 It is formed lower by a predetermined height.

  Further, the underdrain channel block of the present invention is such that in the underdrain channel block, the cross-sectional shape of the substantially flat different shape of the water channel 2a is substantially bilaterally symmetric, and is located on both left and right ends of the bottom portion 2e extending in the horizontal direction. The side 2f is substantially upright and is opposed to the bottom 2e, and the left and right sides of the top are inclined with a predetermined slope, and the left and right ends of the upper side 2g are substantially mountain-shaped. It is possible to adopt a configuration formed continuously at the upper end.

  In addition, the underdrain channel block of the present invention has a channel 2a along the longitudinal direction inside, and the upper surface 2b has a predetermined thickness between the upper portion of the channel 2a, and the channel 2a has a substantially flat shape. The cross-sectional shape formed is substantially bilaterally symmetric, and side portions 2f are substantially upright at both left and right ends of a bottom portion 2e extending in the left-right direction, opposite to the bottom portion 2e, and the left and right sides of the top portion have a predetermined slope. The left and right ends of the upper side portion 2g, which has an inclined shape and has a substantially mountain shape, are formed so as to be continuous with the upper ends of both side portions 2f.

  The method for forming a waterway facility for road surface according to the present invention includes a waterway block having a waterway having a predetermined cross-sectional shape, and a culvert type waterway block whose cross section has a substantially flat shape lower than the cross-sectional height of the waterway of the waterway block. The channel cross section has a longitudinal channel in one end, and the other end has the same cross section as the cross section of the underdrain type water channel block. In order to form the upper surface of the block lower than the upper surface of the water channel block by a predetermined height, the water channel block is embedded in the road so that the upper surface is exposed to the road surface to form a water channel such as a side band and is substantially flush with the road surface. The culvert type waterway block can be joined quickly and easily through the relay waterway block by connecting the water channel and the top surface of the culvert type waterway block with its upper surface as the road surface. Is located at a predetermined depth below the road surface without out, road ditches facility structure embedding the whole including the upper surface having a required strength to the road can be easily formed.

That is, for example, at the intersection of a road, by exposing the upper surface of the road along the roadside or pedestrian road boundary to the road surface and joining the waterway blocks embedded in the road so as to be substantially flush with the road surface When the waterway for the side belt along the road longitudinal direction that is formed is blocked by the road that intersects this, the road without using a deep-bottomed mass block or a drain pipe with a large earth cover as in the past In order to connect the waterway crossing the intersection road without exposing the waterway to the road surface due to function, safety and landscape, etc., the upper surface of the underwater channel block is submerged from the road surface by connecting the relay waterway block and the underwater channel block. Therefore, it is possible to easily form a road surface waterway facility that crosses an intersecting road, and it is possible to improve the workability of the construction because it requires less time for the construction than in the past.
In addition to this, a water channel block, a relay water channel block, and a culvert type water channel block, each having a different cross section of the water channel, are joined with the flow rate in each water channel being substantially equal and the bottom of the water channel being aligned in the longitudinal direction. Therefore, a series of water channels can be drained in a good condition without causing a steep step in the longitudinal direction of the road and without sacrificing the drainage performance, and the flowability such as drainage capacity is improved compared to the conventional one. In addition, the integrity of a series of water channels can be suitably maintained by mutual bonding.

The relay channel block according to the present invention has a substantially flat cross section in which the cross section of the water channel has a cross section having a predetermined shape such as a circular shape of the water channel block at one end in the longitudinal direction, and a substantially mountain-shaped upper portion of the culvert type water channel block at the other end. Since each of the cross-sections having the same shape has the same cross-section and is gradually deformed in the longitudinal direction, the upper surface is exposed to the road surface so as to form a waterway such as a side belt, and the road surface. Each channel is smoothly interposed between a channel block that is embedded in the road in a substantially flat shape and a culvert type channel block that is embedded in the road in its entirety including the upper surface without exposing its upper surface to the road surface. By connecting and embedding in a road, a waterway block and a culvert type waterway block can be joined quickly and easily.
In addition, the flow rate in the water channel is substantially equal to the flow rate of the water channel of the water channel block and the culvert type water channel block, and the water channel bottom is substantially straight in the longitudinal direction so as to be continuous with the water channel bottom of the water channel block and the culvert type water channel block. Since the water channel is continuous in the longitudinal direction of the road, the water channel block and the culvert are in good condition without impairing the water flow such as drainage capacity, that is, without causing a steep step in a series of water channels. Mold channel block can be joined.

In addition, the underdrain channel block of the present invention is indirectly joined to a channel block having a predetermined shape such as a circular cross section of the water channel, and the cross section of the water channel along the inner longitudinal direction has a substantially mountain-shaped upper portion. It has a substantially flat shape, the flow rate of the water channel is substantially the same as the flow rate of the water channel of the water channel block, and the water channel bottom is substantially linear in the longitudinal direction so as to align with the water channel bottom position of the water channel block, Is formed to be lower than the upper surface of the water channel block by a predetermined height so that the upper surface is formed so as to form a water channel such as a side belt. The bottom of the waterway is to be exposed to the road surface and joined to a waterway block that is substantially flush with the road surface and is buried in the road without damaging the water flow capacity of the waterway, etc. Longitudinal position Easily its upper surface at the construction substantially the same construction of the channel block aligned to be positioned to a predetermined depth of the road surface under without exposing to the road surface, can be positioned by 沈埋 a whole including the upper surface to the road.
Further, the cross section of the water channel has a substantially flat shape with a substantially mountain-shaped upper part, and the upper surface is formed with a predetermined thickness between the upper part of the water channel. Therefore, even if the entire surface including the upper surface is buried in a road and a wheel load or the like is applied from above, it has sufficient strength and can contribute to the formation of a road surface waterway facility having a stable structure.

  Further, in the underdrain channel block of the present invention, the cross-sectional shape of the substantially flat shape of the internal water channel is substantially left-right symmetric, and the side portions are substantially upright at both the left and right ends of the bottom portion extending in the left-right direction. Because the left and right ends of the upper side, which are continuous and are opposed to the bottom, and have a substantially sloped shape on both the left and right sides of the top, are continuous with the upper ends of both sides. In addition, combined with the fact that the upper surface of the block is formed with a predetermined thickness between the upper surface of the water channel, at least the strength to withstand bending and shearing forces due to external forces such as wheel loads applied to the upper surface is maintained. Therefore, the entire block with less extravagant (waste) can be a block having an economical and effective cross-sectional shape. It can also contribute to the formation of road surface waterway facilities with a structure that is stable in strength and excellent in drainage.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 (a) to 1 (c) show an embodiment of a road surface waterway facility according to the present invention, and A is a road surface waterway facility according to this embodiment, and as shown in FIG. 1 (a), a road R A waterway block 1 embedded in a road to form a side waterway along the roadside in the longitudinal direction (extending in the horizontal direction in the drawing), and a road R ′ (vertical direction in the drawing) intersecting the road R in a T-shape. The relay waterway block 3 embedded in the road is interposed between the culvert type waterway block 2 which is entirely buried in the road so as to cross the road. In this embodiment, a plurality of culvert-type waterway blocks 2 are joined to cross the road R ′.

For example, as shown in FIGS. 3A to 3C, the water channel block 1 is a horizontally long block made of concrete having a circular water channel 1a having a circular cross section along the longitudinal direction. The bottom portion is substantially linear in the longitudinal direction, the upper surface 1b of the water channel block 1 is a gently inclined surface extending in the width direction perpendicular to the longitudinal direction, the upper surface 1b is exposed on the road surface, and is substantially flush with the road surface. It will be buried in the road.
In addition, the water channel block 1 is provided with flanges 1c projecting from the main body portion on both lower sides of the both longitudinal end surfaces thereof so as to be connected to other blocks by bolts at the time of construction. Bolt holes 1d are respectively provided in the flange 1c portion and the main body portion on the back side located on the diagonally diagonal line of the flange 1c.

For example, as shown in FIGS. 4A to 4D, the culvert-type water channel block 2 is a horizontally long block made of concrete having a water channel 2a along the longitudinal direction, and is a cross section of the water channel 2a. Is made into a substantially flat irregular shape having a substantially mountain-shaped upper part from the surface of flowability such as strength of the block and drainage capacity.
Specifically, the bottom part of the water channel 2a extends in a substantially straight line in the longitudinal direction like the bottom part of the water channel 1a of the water channel block 1, and the flow rate in the water channel 2a is substantially equal to the flow rate of the water channel 1a of the water channel block 1. (It is preferable that the flow rate at a predetermined water depth ratio (for example, 80% water depth) in the water channel 2a is substantially equal to the flow rate at a predetermined water depth ratio (for example, 80% water depth) in the water channel 1a of the water channel block 1). The cross-sectional shape of the water channel 2a is designed so that each predetermined water depth ratio is not necessarily constrained to this (the cross-section of the water channel 1a to be communicated is circular, so that the shape has a smooth outer shape to be adapted to this) It is preferable that the water channel 2a and the water channel 2a and the like be necessary in view of the necessity of maintaining a minimum strength against bending or shearing force due to an external force such as a wheel load applied to the upper surface 2b of the underdrain channel block 2. Cross-sectional shape of the underdrain type waterway block 2 is designed.

  More specifically, the cross-sectional shape of the water channel 2a is substantially bilaterally symmetric as shown in FIGS. 4 (c) and 4 (d), and is provided at the left and right ends of a gentle substantially V-shaped bottom portion 2e extending in the left-right direction. The lateral side 2f that forms a convex curve toward the outside is smoothly continued in an upright manner, and the left and right sides of the rounded top are slantingly inclined with a predetermined gradient relative to the bottom 2e. The left and right ends of the upper side portion 2g formed into a substantially mountain shape are formed so as to be smoothly continuous with the upper ends of both side portions 2f, respectively, so as to satisfy the flow rate and the minimum strength holding conditions. The culvert-type waterway block 2 is an effective block with less overall vacancies (waste).

Further, when the upper surface 2b has a predetermined thickness between the upper surface of the water channel 2a and the bottom portion of the water channel 2a is aligned with the bottom of the water channel 1a of the water channel block 1 in the longitudinal direction, the upper surface 2b is It is formed lower than the upper surface 1b by a predetermined height.
That is, the upper surface 2b is formed by making the cross section of the water channel 2a into a substantially flat shape as described above in which the cross-sectional height of the water channel 1a is lower than that of the circular cross section of the water channel 1a and the height of the cross section is reduced. It can be formed lower than the upper surface 1b of the water channel block 1. As will be described later, the upper surface 1b is exposed on the road surface, and is connected to the water channel block 1 embedded in the road so as to be substantially flush with the road surface. When joining through the irrigation channel block 3, the culvert channel block 2 is positioned at a predetermined depth below the road surface (for example, the lower end position of the road pavement) without exposing the upper surface 2 b to the road surface r, Can be submerged in the road (see FIG. 1 (C) and FIG. 2 (D)).
In addition, in order to join the other blocks with bolts at the time of construction, recesses 2c (spaces for inserting bolts and nuts) extending from the bottom to the bottom are provided on both side walls in the vicinity of both end faces in the longitudinal direction of the culvert channel block 2. In addition, bolt holes 2d penetrating into the recesses 2c along the longitudinal direction are respectively provided in the lower portions of the both end surfaces.

For example, as shown in FIGS. 5A to 5E, the relay waterway block 3 is a horizontally long block made of concrete having a waterway 3a along the longitudinal direction, and the cross section of the waterway 3a has a cross section. A substantially flat irregular shape (water channel) having a circular shape similar to the cross section of the water channel 1a of the water channel block 1 at one end in the longitudinal direction and a substantially mountain-shaped upper portion similar to the cross section of the water channel 2a of the culvert type water channel block 2 at the other end. 2a is formed from a bottom side 3e, a side side 3f, and an upper side 3g), and is gradually deformed from one end to the other in the longitudinal direction.
The bottom of the water channel 3a is substantially linear in the longitudinal direction, similar to the bottoms of the water channels 1a and 2a of the water channel block 1 and the culvert type water channel block 2, and the flow rate in the water channel 3a is substantially the same as the flow rate of the water channels 1a and 2a. It is preferable that the flow rate at a predetermined water depth ratio (for example, 80% water depth) in the water channel 3a is substantially equal to the flow rate at the predetermined water depth ratio (for example, 80% water depth) in the water channels 1a, 2a. The cross-sectional shape of the water channel 3a is designed so that the respective predetermined water depth ratios are not necessarily constrained to this, and the upper portion of the water channel 3a is linearly directed from one end to the other in the longitudinal direction as shown by the broken line in FIG. While gradually descending, both sides of the water channel 3a are gradually expanded linearly from one end to the other in the longitudinal direction as indicated by broken lines in FIG. 5 (b), and the cross section of the water channel 3a is in the longitudinal direction as described above. From one circle to the other It is gradually deformed until the irregular shape.

Further, the upper surface 3b of the relay water channel block 3 is a gently inclined surface extending in the width direction orthogonal to the longitudinal direction in substantially the same manner as the upper surface 1b of the water channel block 1, and the bottom position of the water channel 3a is located at the bottom of the water channel 1a of the water channel block 1. When aligned with the bottom portion in the longitudinal direction, the upper surface 3 b is formed to be substantially the same height as the upper surface 1 b of the water channel block 1.
In addition, the relay water channel block 3 is provided with bolt holes 3d corresponding to the bolt holes 1d of the water channel block 1 on the diagonal line on one end surface in the longitudinal direction so that the water channel block 3 can be connected to other blocks by bolt connection. In addition, recesses 3c (spaces for inserting bolts and nuts) communicating with the bolt holes 3d are provided on both side walls in the vicinity of the one end surface, while the bolt holes 2d of the culvert channel block 2 are provided below the other end surface in the longitudinal direction. Corresponding bolt holes 3d are provided, and both side walls near the other end surface are provided with recesses 3c extending from the bottom to the bottom thereof and communicated with the bolt holes 3d.

Thus, the road surface irrigation facility A of the present embodiment, as shown in FIG. 1 (a), exposes the upper surface 1b along the road side of the road R to the road surface and makes the road surface substantially flush with the road surface. When the side waterway formed by joining the buried waterway block 1 is blocked by the road R ′ intersecting with the road R, the waterway is formed to continue across the intersection road R ′. Is.
That is, as shown in FIG. 1 (a), the relay waterway block 3 is arranged in the longitudinal direction of the waterway block 1 forming the side waterway, in front of the intersection road R ', and crosses continuously therewith. A culvert type waterway block 2 is arranged to cross the road R ′, and as shown in FIGS. 1 (b) and (c), the bottoms of the waterways 1a, 3a, 2a are aligned in the longitudinal direction to make the waterways 1a, 3a , 2a are connected to each other, and the relay waterway block 3 is exposed in the road surface r in the same manner as the waterway block 1, and is buried in the road so as to be substantially flush with the road surface r. The upper surface 2b is positioned below the road surface r without being exposed to the road surface r, and the entire surface including the upper surface 2b is submerged in the road (see FIG. 2 (d)) so as to cross the intersection road R ′ ( In this embodiment, a plurality of culvert channel blocks 2 are joined in the longitudinal direction. While crossing the cross road R 'in the shallow position of under the road surface, not necessarily restricted thereto), and forms a road waterway facilities A in order to continuously waterways of the side band.

Although not shown, the bolt holes 1d and 3d communicate with each other when the water channel block 1 and the relay water channel block 3 are joined, and the bolt holes 3d and 2d communicate with each other when the relay water channel block 3 and the underdrain type water channel block 2 are joined. In addition, each bolt is inserted and a nut is screwed to each other so that they are joined to each other, and these joints are connected to each adjacent water channel block with a water stop packing (preliminarily attached to one end surface of each water channel block). Is held).
Therefore, the road surface waterway facility A has the bottoms of the waterways 1a, 3a, 2a aligned in a straight line in the longitudinal direction, and joins the waterway block 1 and the underdrain type waterway block 2 via the relay waterway block 3, FIG. The water channel 1a having a circular cross section shown in (a) communicates with a water channel 2a having a substantially flat cross section shown in FIG. 2 (d) through a water channel 3a in which the cross section shown in FIGS. 2 (b) and 2 (c) gradually changes. Therefore, the upper surface 2b of the culvert-type water channel block 2 having the water channel 2a having a substantially flat cross section is formed lower than the upper surface 1b of the water channel block 1, and the upper surface 2b is exposed below the road surface r without being exposed from the road surface r. It is possible to place the entire culvert channel block 2 in the road and cross the crossing road R ′, and the flow rate in the water channels 1a, 3a, 2a is substantially the same, and steps are set in a series of water channels. Give rise to Since the continuously provided smoothly without, it is possible to rapid drainage without compromising the drainage capacity.

The present invention is not limited to the embodiment described above, and various modifications can be made within the intended scope of the present invention.
For example, although the cross section of the water channel 1a is circular, the water channel block 1a may have a predetermined shape that extends in the vertical and horizontal directions, such as an oval, oval, quadrilateral, polygon, etc. In addition, the upper surface 1b is an inclined surface extending in the width direction, but may be an inclined surface that is inclined downward from both ends in the width direction toward a substantially central portion, or in a closed state without any holes. In addition, an inflow hole for drainage may be provided as appropriate, or various forms such as an opening communicating with the water channel 1a along the longitudinal direction may be provided, and the length in the longitudinal direction may be appropriately determined. Any length is acceptable.
That is, the water channel block 1 may be a general-purpose water channel block or a publicly known water channel block having a water channel 1a having a predetermined cross-sectional shape along the longitudinal direction and forming a water channel such as a side band. Need not be.

In addition, the cross-section of the underwater channel block 2 is not necessarily limited to the substantially flat shape as in the above-described embodiment, and the flow rate in the channel 2a depends on the predetermined cross-sectional shape of the channel 1a of the channel block 1. Is substantially equal to the flow rate of the water channel 1a (preferably the flow rate at a predetermined water depth ratio in the water channel 2a is substantially equal to the flow rate at the predetermined water depth ratio in the water channel 1a), and an external force such as a wheel load applied to the upper surface 2b. The bottom position of the water channel 2a may be aligned with the bottom of the water channel 1a in consideration of the strength of the water channel 1a so as to have a substantially flat shape lower than the cross-sectional height of the water channel 1a.
In short, it is sufficient that the cross section of the water channel 2a has a substantially flat shape so that the upper surface 2b can be formed lower than the upper surface 1b of the water channel block 1, and the cross section of the water channel 2a has at least the conditions of the flow rate and strength. What is necessary is just the substantially flat different shape which has various substantially mountain-shaped upper parts which satisfy | fill.

  For example, the cross-sectional shape of the water channel 2a is such that the upper side 2g having a substantially mountain shape has a slanting slope with the left and right sides of the rounded top as shown in FIG. As shown in FIG. 7 (b), the right and left sides of the substantially horizontal top part are inclined with a predetermined slope, the left and right sides of the top part having a concave shape as shown in FIG. The right and left sides of the top portion of the shape are appropriately inclined, and various modifications are made to those of the above embodiment. In addition to the bottom portion 2e and the side portion 2f shown in FIGS. 7 (a) to (c), The length and shape (linear shape, bent shape, curved shape, grooved shape, etc. (D) to (L) in FIG. 7) are changed as appropriate, so that the substantially flat irregular shape having various substantially mountain-shaped upper portions. It may be done. Further, the cross-sectional shape of the water channel 2a is preferably substantially symmetrical from the viewpoint of the structure or the like, but is not necessarily symmetrical.

The overall cross-sectional shape of the underdrain channel block 2 also has sufficient strength against an external force such as a wheel load applied to at least the upper surface 2b, and the bottom position of the channel 2a is in the longitudinal direction with the bottom of the channel 1a of the channel block 1 The upper surface 2b only needs to be formed to be lower than the upper surface 1b of the water channel block 1 by a predetermined height (for the depth embedded under the road surface of the upper surface 2b), and is not limited to that of the illustrated embodiment. The shape can be changed.
Also, the length of the culvert channel block 2 in the longitudinal direction may be an appropriate length that maintains the sufficient strength, and the shape and structure of the joint with the other blocks are not restricted by the embodiment, It may be changed as appropriate.

The underdrain channel block 2 may be used independently of the channel block 1 and the relay channel block 3. At this time, the cross-sectional shape of the channel 2a is substantially symmetrical as described above. The side part 2f is substantially upright at both the left and right ends of the bottom part 2e extending in the left-right direction. The left and right sides of the top part are inclined downwardly with a predetermined slope so as to face the bottom part 2e. What is formed by connecting the left and right ends of the upper side portion 2g formed into a shape to the upper ends of both side portions 2f can be preferably used, and what is originally provided for forming the road surface channel facility A is diverted as it is. That's fine.
For example, as shown in FIGS. 8 (a) and 8 (b), in the roads R and R 'intersecting each other in the same manner as in FIG. 1, a plurality of culvert-type waterway blocks 2 joined across the intersecting road R' are formed. Further, instead of the water channel block 1 and the relay water channel block 3, a culvert type water channel block 2 can be continuously joined along the road side of the road R. In this case, the culvert type water channel block 2 is shown in FIG. And as shown in FIG. 2 (d), the whole may be submerged in the road, and various street constructions (not shown) may be constructed on the upper side, and in some cases, FIG. 8 (b) and (c) The upper surface 2b may be exposed to the road surface r as shown in FIG. Further, the upper surface 2b is not limited to the intersection of the road and may be used independently in various other places, and the upper surface 2b is an inclined surface that is inclined downward from both ends in the width direction to the substantially central portion as shown in FIG. In addition, the inclined surface extending in the width direction can be appropriately changed according to the installation location. In addition, when the underdrain channel block 2 is used independently as described above, the flow rate at a predetermined water depth ratio in the channel 2a may be appropriately determined without being constrained by the channel block 1.

In the embodiment, the cross section of the waterway block 3 is gradually deformed from a circular shape at one end in the longitudinal direction to a substantially flat shape at the other end. Depending on the cross-sectional shape of the water channels 1a and 2a, the cross-section of the water channel 3a is a cross-section of the water channel 1a at one end in the longitudinal direction (for example, oval, oval, quadrilateral, polygonal, etc.) and the cross-section of the water channel 2a at the other end ( It may be deformed gradually in the longitudinal direction having the same cross section as the above (various flat shapes having various substantially mountain-shaped upper portions).
That is, the relay waterway block 3 has the waterway 3a whose cross section changes as described above, and is interposed between the waterway block 1 and the culvert-type waterway block 2 so that there is a step between the waterways 1a, 3a, 2a. It suffices that they can be joined without being connected.

Further, the upper surface 3b of the relay waterway block 3 is also a gently inclined surface extending in the width direction orthogonal to the longitudinal direction, but is not necessarily limited thereto, and is appropriately inclined such as adapting to the upper surface 1b of the waterway block 1. It may be in various forms such as a substantially horizontal plane, and the length in the longitudinal direction of the relay waterway block 3 may be an appropriate length that maintains sufficient strength, and the shape of the joint portion with other blocks, The structure is not limited to that of the embodiment, and may be changed as appropriate.
Further, when the bottom position of the water channel 3a is aligned with the bottom of the water channel 1a of the water channel block 1 in the longitudinal direction, in the embodiment, the upper surface 3b is formed to be substantially the same height as the upper surface 1b of the water channel block 1 in the longitudinal direction. However, the present invention is not necessarily limited to this. For example, as shown in FIGS. 6A to 6C, the upper surface 3b extends from one end to the other end in the longitudinal direction and is approximately the same height as the upper surface 1b of the water channel block 1. Now, it may be an inclined surface that gradually declines from the middle toward the other end, or may be a step-like substantially horizontal plane as shown by a dashed line in FIG. The upper surface 3b that forms an inclined surface or a substantially horizontal surface on the side may be embedded in the road without being exposed from the road surface, and the upper surface 3b is inclined gradually from one end to the other end in the longitudinal direction. It may be done.

In forming the road surface water channel facility A, the water channel block 1, the relay water channel block 3, and the culvert type water channel block 2 capable of various forms may be joined by connecting the water channels 1a, 3a, and 2a. The joining method is not limited to the above-described bolt connection, and various methods may be employed as appropriate, such as attaching a water-stopping packing between the end faces and butting the end faces together or fitting the end faces together. In addition, at least each of the water channel blocks 1, 3, 2 has substantially the same flow rate in the water channels 1 a, 3 a, 2 a, and the bottom portions of the water channels 1 a, 3 a, 2 a are aligned in a substantially straight line in the longitudinal direction. The upper surface 2b of the water channel block 1 is formed to be lower than the upper surface 1b of the water channel block 1 by a predetermined height, and the culvert type water channel block 2 including the upper surface 2b can be entirely buried in the road, and the road surface function is simplified by simplifying the road surface configuration. It may be so as not to impair the safety and landscape.
In addition, the road surface canal facility A is not limited to the intersection of the road as in the above embodiment, and various other places required for road function, safety, landscape, and other aspects. Of course, both sides of the culvert channel block 2 are joined to the channel block 1 via the relay channel block 3 in the embodiment, but the culvert channel block can be used as necessary. Only one side of 2 may be connected to the waterway block 1 via the relay waterway block 3, and the other side may be directly joined to another waterway facility or the like without going through the relay waterway block 3.

  1 shows an embodiment of a road surface waterway facility according to the present invention, in which (A) is a plan view, (B) is a BB end view of (A), and (C) is an enlarged view of a portion C of (B).   (A) is a DD enlarged end view of FIG. 1 (a), (b) is an EE enlarged end view of FIG. 1 (a), and (c) is an FF enlarged end view of FIG. 1 (a). , (D) is a GG enlarged end view of FIG.   An example of the waterway block in the waterway facilities for road surfaces of FIG. 1 is shown, (a) is a partially omitted front view, (b) is a left side view, and (c) is a cross-sectional view taken along line HH in (a).   1 shows an example of a culvert type waterway block in the road surface canal facility of FIG. 1, (A) is a partially omitted front view, (B) is a partially omitted plan view, (C) is a side view, and (D) is (I). JJ sectional drawing.   FIG. 1 shows an example of a relay channel block in the road channel facility of FIG. 1, (A) is a front view, (B) is a plan view, (C) is a left end view, (D) is a right end view, and (E) is ( KK sectional drawing of a).   The other example of the relay waterway block is shown, (A) is a front view, (B) is a left end view, and (C) is a right end view.   (A) thru | or (ri) is explanatory drawing which shows the other example of the cross-sectional shape of the waterway of a culvert type waterway block, respectively.   (A) and (B) are plan views showing road surface channel facilities by using a culvert type waterway block, (C) is an LL enlarged sectional view of (B), and (D) is an upper surface shape of the culvert type waterway block. Sectional drawing which shows another example of other.

Explanation of symbols

A Road surface channel facilities 1 Channel blocks 1a, 2a, 3a Channels 1b, 2b, 3b Top surface 2 Underdrain channel blocks 2e, 3e Bottom side 2f, 3f Side sides 2g, 3g Top side 3 Relay channel block R, R 'Road r Road surface

Claims (5)

  When connecting a water channel block having a water channel along the longitudinal direction inside the water channel to communicate with each other, the water channel block (1) having a water channel (1a) having a predetermined cross-sectional shape and the cross section of the water channel (2a) are the water channel block ( The cross section of the water channel (3a) is at one end in the longitudinal direction between the water channel block (1) and the like, between the culvert type water channel block (2) having a substantially flat shape lower than the cross-sectional height of the water channel (1a) of 1) The relay channel block (3) having the same cross section as the cross section of the culvert channel block (2) at the end and being gradually deformed in the longitudinal direction is interposed, and each channel block (1), (3), ( 2) The flow rates in the water channels (1a), (3a), (2a) are made substantially equal, and the bottom positions of the water channels (1a), (3a), (2a) are aligned in the longitudinal direction, 2) The upper surface (2b) of the waterway Tsu method for forming road canal facility to form an upper surface (1b) than the predetermined height of low and click (1).   In order to form a waterway facility for the road surface, the cross section of the water channel (1a) in which the cross section of the water channel (1a) along the inner longitudinal direction has a predetermined shape such as a circle, and the cross section of the water channel (2a) along the inner longitudinal direction are approximately. A cross-section of the channel (3a) along the longitudinal direction of the channel is interposed between the culvert-shaped channel block (2) having a generally flat irregular shape having a mountain-shaped upper portion, and at one end in the longitudinal direction. The water channel block (1) has the same cross section as the cross section of the culvert type water channel block (2) at the other end and is gradually deformed in the longitudinal direction, and the flow rate in the water channel (3a) is changed to the water channel block (1). The flow rate of the channels (1a) and (2a) of the culvert channel block (2) is substantially the same, and the bottom of the channel (3a) is the channel of the channel block (1) and channel of the culvert channel block (2) ( 1a), (2a) To be continuous with the bottom Relay canal blocks made substantially linearly in the longitudinal direction.   In order to form a waterway facility for the road surface, the cross section of the waterway (1a) along the inner longitudinal direction is indirectly joined to the waterway block (1) having a predetermined shape such as a circle, and the inner longitudinal direction The cross section of the water channel (2a) along the line has a substantially flat irregular shape having a substantially mountain-shaped upper portion, and the flow rate of the water channel (2a) is substantially equal to the flow rate of the water channel (1a) of the water channel block (1). In addition, the bottom of the water channel (2a) is substantially linear in the longitudinal direction so as to be aligned with the bottom of the water channel (1a) of the water channel block (1), and the upper surface (2b) has a predetermined thickness between the top of the water channel (2a). A culvert type waterway block having a predetermined height lower than the upper surface (1b) of the waterway block (1).   The cross-sectional shape of the substantially flat shape of the water channel (2a) is substantially bilaterally symmetric, and side portions (2f) are continuous in a substantially upright manner at the left and right ends of the bottom portion (2e) extending in the left-right direction. The left and right ends of the upper side portion (2g), which has a slope shape with a predetermined slope on both the left and right sides of the top portion (2e), are connected to the upper ends of both side portions (2f). The underdrain type waterway block according to claim 3 formed.   A cross-sectional shape having a water channel (2a) along the longitudinal direction inside, and having an upper surface (2b) having a predetermined thickness between the upper surface of the water channel (2a) and a substantially flat shape of the water channel (2a) However, the side part (2f) is continued substantially upright at both the left and right ends of the bottom part (2e) extending in the left-right direction, is opposed to the bottom part (2e), and the left and right sides of the top part are A culvert type waterway block formed by connecting the left and right ends of the upper side portion (2g), which has an inclined shape with a predetermined gradient, and the upper ends of both side portions (2f), respectively.

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