JP4053076B2 - Drainage basin and drainage structure of paved road using this - Google Patents

Description

  The present invention relates to a drainage basin and a drainage structure of a paved road using the same.

  For example, in a general road in which a roadway and a sidewalk are separated through a boundary block (also referred to as a curbstone), an apron portion (also referred to as a street lamp) that normally has a running water surface inclined downward toward the outside in the transverse direction. Is provided along the side of the roadway. In such an apron section, street lamps having a grating lid are installed at predetermined intervals in the longitudinal direction, and each street lamp has a U-shaped groove or a section along the longitudinal direction embedded below the apron section. They are connected to each other by circular water collecting pipes.

Therefore, in a general paved road having such an apron part, rainwater flowing in the longitudinal direction of the road on the apron part is caused to flow down to underground sewerage facilities through streets arranged at predetermined intervals in the same direction. Therefore, drainage of rainwater on the roadway side is performed.
However, such a general paved road has a drawback that the construction cost becomes high due to the material cost and the construction work because the apron portion made of concrete is provided on the side of the roadway. In addition, rainwater tends to stay on the top surface of the apron, so that when the tire passes the top surface of the apron, water splashes and slips to the pedestrians occur, or between the top surface of the apron and the pavement surface. A handle may be taken at the level difference that occurs, and there is a disadvantage that the safety of vehicle traffic is inferior.

  Therefore, a boundary block with a drainage function that can appropriately drain rainwater on the roadway side without providing an apron has already been proposed. Such a conventional boundary block is composed of a concrete block body with a drainage function that does not have an apron part and has a drainage channel penetrating in the longitudinal direction of the road. An introduction hole communicating with the drainage channel is formed (see Patent Document 1).

JP 2002-88707 A (Claims 1, 3 and 4)

  However, in the conventional paved road drainage structure using the above-mentioned boundary block, in order to drain the rainwater in the boundary block to the sewage system, the large-capacity street that is set to the same width dimension as the apron part. The connection is made (see FIGS. 3 and 4 of Patent Document 1).

For this reason, despite the fact that the apron is omitted by guiding rainwater into the cross section of the corner block and the boundary block, the street is still overhanging on the roadway side, The tires of vehicles traveling on the left side may pass over the street.
Therefore, in the conventional drainage structure of a paved road, vehicle tires slip through the upper surface of the street, or the handle is taken at the step formed between the upper surface of the street and the paved road surface. Fear remains, and it is hard to say that vehicle traffic safety has been completely eliminated.

  In view of such a situation, the present invention allows a water collecting pit to be embedded on the side of a road so that a tire of a vehicle does not pass through the upper surface of the water collecting basin, and is used in combination with a boundary block with a drainage function. The purpose is to further improve the safety of vehicle traffic.

In order to achieve the above object, the present invention takes the following technical means.
That is, the catchment basin according to the present invention is a catchment basin for collecting rainwater that has flowed into the drainage channel of the boundary block with a drainage function, and corresponds to the curbstone having the same cross-sectional shape as the curb portion of the boundary block. It has a ridge upper part having a part and a heel lower part connected to the lower part of the ridge upper part. A lid is provided, and the inspection lid includes a flat plate-like upper plate portion corresponding to an upper surface of the curb portion of the boundary block, a round portion extending downwardly from the roadway side edge of the upper plate portion, and A flat side plate portion extending downward from the lower end of the portion and corresponding to the roadway side surface of the curb portion of the boundary block, and comprising the lid wall portion and the inspection lid in the closed state The cross-sectional outer shape is a break of the curbstone of the boundary block To match the outer peripheral shape, wherein the rounded portion in the upper end portion of the cover wall portion.

In order to construct the drainage structure of a paved road using the catchment basin according to the present invention, the curb corresponding part of the upper part of the basin of the catchment basin is in a state of being continuous with the curbstone part of the boundary block along the longitudinal direction of the road. In addition, the water collecting basin may be buried on the side of the paved road.
At this time, according to the catchment basin according to the present invention, the basin upper portion having a curb corresponding portion having the same cross-sectional shape as the curb portion of the boundary block is provided, and an openable / closable inspection lid is provided only on the curb corresponding portion of the upper heel portion. Therefore, the tires of the vehicle passing on the left side of the roadway do not pass through the upper surface of the catchment basin.

  For this reason, unlike the conventional case, there is no possibility that the vehicle tire slips through the upper surface of the catchment basin or that the handle is taken by the step formed between the upper surface of the catchment basin and the paved road surface. In addition, the safety of vehicle traffic can be further improved.

  In the drainage basin according to the present invention, the inspection lid has a flat plate-like upper plate portion corresponding to the upper surface of the curb portion of the boundary block, and a round portion extending downwardly from the roadway side edge of the upper plate portion, A flat side plate portion extending downward from the lower end of the rounded portion and corresponding to the side surface of the curb portion of the boundary block is integrally provided. And when employ | adopting the inspection cover of this structure, it is preferable to pivotally attach to the upper part of a collar so that the lower end edge of the said side plate part can incline toward the roadway side.

  In this case, since the L-shaped inspection lid is inclined and opened to the roadway side, the cleaning tool can be inserted from the sidewalk side toward the inside of the catchment basin after the inspection lid is opened. Cleaning the inside of the basket becomes easier. In addition, when adopting the L-shaped inspection lid, if the upper plate part and the side plate part are both made of a grating member, the water collection efficiency to the water collecting basin is improved. The angle at which the internal state of the water collecting basin can be seen from the outside widens, making it easier to inspect the water collecting basin.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a drainage structure of a paved road using a catchment 1 according to the present invention, and FIGS. 2 and 3 show details of the catchment 1.
As shown in FIG. 1, the paved road of this embodiment is divided into a sidewalk part 3 and a roadway part 4 via a boundary block 2 made of precast concrete.

  This boundary block 2 has a drainage function that does not have an apron portion, and is integrally formed from a base portion 6 having a rectangular cross section embedded in the ground and a curbstone portion 7 protruding above the base portion 6. It is configured. A drainage channel 8 having a circular cross section is formed inside the base portion 6, and the drainage channel 8 penetrates the boundary block 2 in the longitudinal direction (the longitudinal direction of the road). Note that a step is formed in the central portion of the cross section of the boundary block 2 by making the curb portion 7 narrower than the base portion 6.

  An introduction hole 9 communicating with the drainage channel 8 is provided in the lower portion of the curb portion 7 on the side surface of the roadway, and the introduction hole 9 is formed in a slit shape that is long in the longitudinal direction of the road. Although not shown in the figure, the boundary block 2 is laid on the foundation concrete that has been cast in the field on the roadbed 10. In addition, if all or part of the boundary block 2 is made of porous concrete having high water permeability, rainwater can be actively collected from portions other than the water guide holes 9 and drainage efficiency can be improved. it can.

  A pavement 12 is usually constructed on the roadway portion 4 of the road. The pavement 12 lays an impermeable base layer 13 on the roadbed 10 and an impermeable surface layer 14 on the base layer 13. It is configured by The sidewalk 3 of the road is constructed by laying a gravel layer 15 on the roadbed 10 and laying a large number of sidewalk blocks 16 on the gravel layer 15.

  The catchment basin 1 of this embodiment is for collecting rainwater that has flowed into the boundary block 2 with a drainage function and flowing it down to the underground sewage equipment. As shown in FIGS. It has an upper part 18 that can connect the ends of the block 2 flush with each other, an openable and closable inspection lid 19 provided on the upper part 18, and a connection port 22 for a sewage pipe 21 that is buried in the ground. It is comprised from the heel lower part 20.

  Of these, the upper part 18 is made of a hollow concrete block body having the same cross-sectional shape as the boundary block 2 and substantially the same length, and at both ends in the longitudinal direction of the block body, the boundary block 2 A communication hole 23 corresponding to the drainage channel 8 is formed. On the other hand, the eaves lower portion 20 is formed of a hollow concrete block body formed in a rectangular shape in plan view having the same width and length as the eaves upper portion 18. A connection port 22 of the sewage pipe 21 leading to the facility is formed.

  As shown in FIGS. 2 and 3, the lower end portion of the heel upper portion 18 is opened without a bottom, and the upper end opening portion 25 of the heel lower portion 20 is connected flush with the opened lower end opening portion 24. ing. For this reason, the said heel upper part 18 and the heel lower part 20 which are the structural members of the boundary block 2 come to be connected in the field so that it may mutually become the same in both the side surface by the side of a roadway, and the side surface by the sidewalk. Yes.

  In addition, the connection method of the collar upper part 18 and the collar lower part 20 can employ | adopt various means, such as the dry connection by an anchor bolt, and the wet connection by the mortar coating to a joining end surface. Moreover, in this embodiment, the lower end part of the heel lower part 20 is also opened in a state without a bottom, and the lower end opening part 26 of the opened heel lower part 20 is blocked by hitting invert concrete in the field. However, it is also possible to adopt the heel lower part 20 having a bottom part integrally.

  In the water collecting trough 1 of this embodiment, most of the curb-corresponding portions in the trough upper portion 18 are open except for the wall portions at both ends in the longitudinal direction. The sidewalk side (left side in FIG. 3) of the open part is closed by a lid wall part 27 made of a metal grating member, and the roadway side (right side in FIG. 3) of the open part is also made of a metal grating member. It is closed with an openable / closable inspection lid 19. In addition, when making the surface of the sidewalk part 3 the same height as the curb upper surface, it is not necessary to employ | adopt a grating member as the cover wall part 27, and you may decide to comprise the cover wall part 27 with a concrete wall. .

The inspection lid 19 includes a flat plate-like upper plate portion 29 corresponding to the upper surface of the curb portion 7 of the boundary block 2, a round portion extending downwardly from the roadway side edge of the upper plate portion 29, and the round portion. 3 is formed of an L-shaped plate member integrally provided with a flat plate-like side plate portion 30 that extends downward from the lower end of the boundary block 2 and corresponds to the side surface of the curb portion 7 of the boundary block 2, as shown in FIG. By pivotally attaching the lower end edge of the part 30 to the opening part of the upper part 18 via the hinge 31, it can open | release so that it can incline toward the roadway side.
As shown in FIG. 3, the lid wall portion 27 is configured such that the outer peripheral shape of the cross section constituted by the inspection lid 19 in the closed state matches the outer peripheral shape of the cross section of the curb portion 7 of the boundary block 2. For this reason, a rounded portion is also formed at the upper end portion of the lid wall portion 27.

  As shown in FIG. 1, the plurality of boundary blocks 2 with a drainage function that do not have an apron portion are continuously connected along the longitudinal direction of the road so that the drainage channel 8 in the inside becomes a single pipeline. In this connected state, it is buried beside the paved road. On the other hand, the water collecting trough 1 of the present embodiment is buried on the side of the paved road so that the upper portion 18 is interposed between the arbitrary boundary blocks 2, and at this time, the drainage channel 8 of the boundary block 2 is water collecting. It communicates with the communication hole 23 of the basket 1.

  For this reason, according to the drainage structure of the paved road of this embodiment, the rainwater that has flowed to the side of the roadway 4 is drawn into the drainage channel 8 of the boundary block 2 through the introduction hole 9. After flowing through the interior along the vertical gradient, the water is once collected in the catchment 1 through the communication hole 23 and then drained into the sewage facility outside the figure through the sewer pipe 21. ing.

At this time, according to the water collecting trough 1 of the present embodiment, as shown in FIG. 1, the end of the boundary block 2 with a drainage function that does not have an apron portion is connected flush with the trough upper portion 18, Since the stock 20 connected to the lower side of the upper part 18 is flush with the upper part 18 on the side surface on the roadway side, nothing protrudes from the boundary block 2 having no apron part to the roadway side. The drainage structure of the paved road is constructed.
As described above, according to the water collecting dredge 1 of the present embodiment, the dredging upper portion 18 having the curb corresponding portion having the same cross-sectional shape as the curb portion 7 of the boundary block 2 is provided, and only the curb corresponding portion of the dredging upper portion 18 is opened and closed. Since the flexible inspection lid 19 is provided, the tire of the vehicle passing on the left side of the roadway does not pass through the upper surface of the catchment 1.

Therefore, there is no risk of vehicle tires slipping over the upper surface of the catchment basin or the handle being taken by a step formed between the upper surface of the catchment basin and the paved road surface. Can be further improved.
Further, according to the water collecting tank 1 of the present embodiment, the L-shaped inspection lid 19 is inclined and opened toward the roadway side, so that after the inspection lid 19 is opened, the inside of the water collecting tank 1 from the sidewalk side. There is an advantage that the cleaning tool can be inserted toward the front and the cleaning operation in the water collecting basin 1 is easier to perform.

Furthermore, according to the water collecting trough 1 of this embodiment, since the upper plate part 29 and the side plate part 30 of the inspection lid 19 are both made of a grating member, the water collecting efficiency to the water collecting trough 1 is improved. In addition, the angle at which the internal state of the water collecting basin 1 can be viewed from the outside is widened, and there is an advantage that the inspection work inside the water collecting basin 1 can be easily performed.
The above-described embodiments are all illustrative and not restrictive. The scope of the present invention is indicated by the claims, and all modifications within the scope equivalent to the configurations described therein are also included in the present invention.

For example, FIG. 1 illustrates the case where the drainage structure comprising the catchment basin 1 and the boundary block 2 of the present invention is applied to a road having a normal pavement 12, but the drainage structure is a road having a drainage pavement. It can also be applied to.
Moreover, in the above-described embodiment, the water collecting rod 1 divided into the upper portion 18 and the lower portion 20 is illustrated, but the water collecting rod 1 of the present invention may have these parts integrally. Good.

〔The invention's effect〕
As described above, according to the present invention, the catchment can be embedded on the side of the road so that the vehicle tire does not pass through the upper surface of the catchment so that it can be used together with the boundary block with a drainage function. Thus, the safety of vehicle traffic can be further improved.

It is a perspective view of the drainage structure of the paved road using the water catchment of the present invention. (A) is a top view of the catchment of this invention, (b) is the side view which looked at the catchment from the roadway side. (A) is the cross-sectional view of the upper part of the catchment of the catchment of this invention, (b) is the side view which looked at the catchment from the longitudinal direction of the road.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Catchment 2 Boundary block 6 Foundation part 7 Curbstone part 8 Drainage channel 18 Upper part 19 Inspection lid 20 Lower part 21 Sewage pipe 22 Connection port 29 Upper plate part 30 Side plate part

Claims (2)

A drainage basin for collecting rainwater flowing into the drainage channel (8) of the boundary block (2) with a drainage function,
A heel upper portion (18) having a curb corresponding portion having the same cross-sectional shape as the curb portion (7) of the boundary block (2), and a heel lower portion (20) connected to the lower portion of the heel upper portion (18). And
A lid wall part (27) and an inspection lid (19) are provided only on the curb-corresponding part of the upper ridge (18) located above the road surface after burying construction on the roadside,
The inspection lid (19) includes a flat plate-like upper plate portion (29) corresponding to the upper surface of the curb portion (7) of the boundary block (2), and a lower side from the roadway side edge of the upper plate portion (29). A curved round portion and a flat side plate portion (30) extending downward from the lower end of the round portion and corresponding to the side surface of the curb stone portion (7) of the boundary block (2) are integrally provided. The outer peripheral shape of the cross section constituted by the lid wall portion (27) and the inspection lid (19) in the closed state matches the outer peripheral shape of the cross section of the curb portion (7) of the boundary block (2). The water collecting basin is characterized in that a rounded portion is also formed at the upper end portion of the lid wall portion (27) . It flows into the drainage channel (8) of this boundary block (2) and a plurality of boundary blocks with drainage function (2) buried in the roadside of the paved road in a state of being continuously connected along the longitudinal direction of the road. A drainage structure for a paved road comprising a catchment basin (1) according to claim 1 for collecting rainwater.
The catchment basin (1) is arranged so that the curb-corresponding portion of the upper part (18) of the catchment basin (1) is continuous with the curbstone (7) of the border block (2) along the longitudinal direction of the road. The drainage structure of a paved road, characterized by 1) being buried on the side of the paved road.

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