JP6637309B2 - Concrete secondary molded article having water collecting function Molding method of concrete secondary molded article having water collecting function for road structure composed of many concrete secondary molded articles having water collecting function - Google Patents

Description

  SUMMARY OF THE INVENTION The present invention relates to a drainage channel that can guide a fluid such as rainwater on a road surface into a drainage channel by a gutter cover, a pedestrian road boundary block, or the like that is provided so as to cover an opening area of the drainage channel such as a U-shaped groove. The present invention relates to a concrete secondary molded product having a water function, a road structure formed by using a large number of concrete secondary molded products having a water collecting function, and a method of molding a concrete secondary molded product having a water collecting function.

For example, drainage channels such as gutters for collecting and flowing rainwater, domestic wastewater, and the like are provided at ends of roadways and sidewalks. Among such drainage channels, those having an open upper surface are provided with a lid (side groove lid) or the like so as to cover the open area. There is also a type (a sidewalk boundary block) that also serves as a boundary block that describes a boundary between a roadway and a sidewalk.
In these gutters and boundary blocks, there are provided water collecting holes (also referred to as drainage slits) for actively collecting rainwater, sewage, and the like flowing on the road to the drainage channel. Many are provided.

  Conventionally, water collecting holes provided for guiding such rainwater to the drainage channel are clogged with mud, sand, or fallen leaves, and the water collecting capacity is reduced or does not function at all. There is a problem that not.

  Therefore, in order to solve such a problem, the prior art in which the water collecting holes are formed in a tapered shape (a flared shape) expanded toward the drainage channel to eliminate clogging of the water collecting holes. Is also provided (see Patent Document 1).

However, in the case of such prior art, a further separate problem has arisen. In other words, mud, sand, fallen leaves, etc. flow down into the drainage channel together with rainwater, etc., and although clogging of the catchment holes is resolved, repeated repetition of these deposits at the bottom of the gutter at a considerable height. Things will accumulate.
If the mud, sand, fallen leaves, and the like are accumulated in the bottom of the gutter, the drainage capacity of the gutter decreases, and in the worst case, drainage may not be possible or flooding may occur.

Therefore, when a certain amount of sediment accumulates in the bottom of the gutter, local residents open a gutter cover or the like at a predetermined position and scrape the sediment to remove it.
Alternatively, if the amount of the sediment is enormous or the area is wide and cannot be handled by local residents, a specialized cleaning company requested by the government or local residents will be Open the gutter lid, insert the high-pressure washing hose connected to the special vehicle into the gutter, discharge the high-pressure washing water, flow the sediment in the direction of the specified cell, and deposit the sediment in the cell. You may have to do a large amount of work to vacuum up the vacuum.

JP 2002-235365 A

  Such cleaning work takes time and effort, and in the case of requesting a specialized cleaning company at the request of the government, the cost of the work will be covered by public expenses. Therefore, it is necessary to minimize such a cleaning operation.

  In addition, since the provision of the water collecting holes and the like also leads to a reduction in the strength surface of the solid gutters and boundary blocks as compared with the solid gutter lids and the boundary blocks, it is impossible to provide an extremely large water collecting hole. There were limits to their abilities.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a concrete molded article capable of draining a fluid to a drainage channel, for excluding a fluid other than a fluid such as mud, sand, and fallen leaves. Water collection that can reduce the labor and cost of cleaning inside the drainage channel by preventing the water from flowing down into the drainage channel, and at the same time improve the strength of the concrete molded article itself and also improve the water collection function Provided are a concrete secondary molded article having a function, a road structure constituted by continuously using a large number of concrete secondary molded articles having a water collecting function, and a method of molding a concrete secondary molded article having a water collecting function. It is in.

In order to achieve such an object, a first present invention is a concrete secondary molded article provided on a drainage channel and capable of guiding fluid on a road surface into the drainage channel,
A concrete molded article body provided with an opening area for collecting water,
A filter unit integrally formed in the opening area and capable of passing only a fluid ,
The secondary molded article main body is disposed between a sidewalk and a road, and includes a protruding portion indicating a boundary between the sidewalk and the road, and an apron protruding on both sides of the protruding portion. A roadway boundary block,
In a boundary region between the protrusion and the apron, a long water collecting groove is provided, which is continuously recessed in a longitudinal direction of the main body,
The opening area is provided intermittently in the continuous direction of the water collecting groove, and is provided so as to penetrate from an inner bottom surface of the water collecting groove to a bottom surface area of the concrete secondary molded product body.
The water- permeable concrete secondary molded product , wherein left and right flat surface portions are provided on both sides of the opening region in a width direction that is a direction orthogonal to a continuous direction of the water-collection groove. It was that.

According to a second aspect of the present invention, in the first aspect of the present invention, the inner wall surfaces on both sides in the width direction of the water collecting groove are raised at an obtuse angle from the inner bottom surface of the water collecting groove. This is a secondary molded article made of porous concrete.

According to a third aspect of the present invention, in the first aspect or the second aspect of the present invention, the apron portion has an engaging groove continuously recessed in a length direction of the main body at an upper end edge on the free end side of the apron portion. Has been
The engaging groove is provided continuously from the inner wall surface portion provided continuously from the upper end edge on the free end side of the apron portion, a bottom portion provided continuously from the inner wall surface portion, and provided continuously from the bottom surface portion. With the outer wall surface portion formed, formed in a concave groove continuous in the longitudinal direction of the main body,
A notched groove for sweeping is formed in an end region of the engagement groove, thereby providing a water-permeable concrete secondary molded product.

A fourth aspect of the present invention includes a drainage channel provided over a predetermined length region, and a plurality of concrete secondary molded articles provided so as to cover the drainage channel,
According to a second aspect of the present invention, there is provided a road structure, wherein the concrete secondary molded product is the permeable concrete secondary molded product according to any one of the first to third aspects of the present invention .

  ADVANTAGE OF THE INVENTION According to this invention, in a concrete secondary molded article which enables drainage of fluid to the drainage channel, cleaning of the inside of the drainage channel is prevented by preventing anything other than fluid such as mud, sand, and fallen leaves from flowing into the drainage channel. A concrete secondary molded product with a water collecting function that can reduce the labor and cleaning costs, and at the same time enhance the strength of the concrete secondary molded product itself and also improve the water collecting function, concrete with a water collecting function It is possible to provide a road structure formed by continuously using a large number of secondary molded products, and a method for molding a concrete secondary molded product having a water collecting function.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic plan view which partially shows an example of the road structure (pedestrian road boundary structure) which connected many concrete secondary molded articles of this invention. It is a schematic side view of the road structure (pedestrian road boundary structure) shown in FIG. FIG. 3 is a schematic perspective view showing a part of an example of a pedestrian road boundary block (standard part) constituting the road structure (pedestrian road boundary structure) shown in FIGS. FIG. 4 is a schematic plan view of a footway boundary block (standard part) of FIG. 3. (A) is a schematic vertical sectional front view of the sidewalk boundary block (standard part) shown in FIGS. 3 and 4, and (b) is an enlarged view of a part where a filter part is integrally formed in an opening area for collecting water. Shown. FIG. 4 is a schematic partial enlarged cross-sectional view of a footway boundary block (standard part) in FIG. 3. FIG. 4 is a schematic vertical perspective view partially showing a road structure (pedestrian road boundary structure) formed by arranging a pedestrian road boundary block (standard part) shown in FIG. 3 on a drainage channel. FIG. 3 is a schematic perspective view illustrating a part of an example of a pedestrian-boundary boundary block (cell) constituting the road structure (pedestrian-boundary boundary structure) shown in FIGS. FIG. 3 is a schematic perspective view showing a part of an example of a pedestrian road boundary block (a lower part of a pedestrian crossing) constituting the road structure (a pedestrian road boundary structure) shown in FIGS. FIG. 3 is a schematic perspective view showing a part of an example of a pedestrian road boundary block (participation section for disabled persons) constituting the road structure (pedestrian road boundary structure) shown in FIGS. 1 and 2. FIG. 3 is a schematic perspective view illustrating a part of an example of a pedestrian road boundary block (entrance portion) constituting the road structure (pedestrian road boundary structure) illustrated in FIGS. FIG. 3 is a schematic perspective view showing a part of an example of a pedestrian road boundary block (corner-shaped portion) constituting the road structure (pedestrian road boundary structure) shown in FIGS. It is a schematic longitudinal perspective view which partially omits and shows an example of the sidewalk boundary block in which the opening area | region for water collection was provided largely and the filter part area | region was provided large. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic longitudinal perspective view which partially shows an example of the road structure (underdrain type drainage channel) which connected many concrete secondary molded articles (underdrain type side ditch) of this invention.

Hereinafter, a concrete secondary molded article having a water collecting function according to an embodiment of the present invention, a road structure configured by using a large number of concrete secondary molded articles having a water collecting function, and a water collecting function A method of forming a concrete secondary molded product having the same will be described. Note that this embodiment is merely an embodiment of the present invention, and is not to be construed as being limited to the embodiment, and the design can be appropriately changed within the scope of the present invention.
1 to 7 show a first embodiment of the present invention, and FIGS. 8 to 14 show another embodiment.

  FIG. 1 is a schematic plan view partially showing an example of a road structure (pedestrian road boundary structure) A formed by connecting a number of concrete secondary molded products having a water collecting function, which are concrete secondary molded products of the present invention. FIG. 2 is a schematic side view of the road structure (pedestrian road boundary structure) A. In this embodiment, the right side in FIG. 1 shows the roadway, and the left side shows the sidewalk.

  The road structure (pedestrian road boundary structure) A of the present embodiment shown in FIGS. 1 and 2 is a structure having a drainage function such as a gutter disposed over a predetermined length region (a drainage function over a predetermined length region). 30) (see FIG. 7). For example, a standard section type pedestrian road boundary block 1 shown in FIG. 3 and a square section pedestrian road shown in FIG. A boundary block 100, a sidewalk lower boundary type block 200 shown in FIG. 9, a handicapped section type sidewalk roadway boundary block 300 shown in FIG. 10, and a sidewalk type boundary block 400 shown in FIG. 11, FIG. 12. As shown in FIG. 5, a corner type block pedestrian road boundary block 500 is assumed.

  The pedestrian road boundary block 1 of the present embodiment includes a concrete secondary molded article main body 10 provided with a water collecting hole (water collecting opening area) 18 and the water collecting hole (water collecting opening area) 18. The filter unit 22 is integrally formed.

The concrete secondary molded product main body 10 is formed by pouring a concrete material into a predetermined molding die, and forming a protrusion 12 indicating a boundary portion, and a flat plate-shaped apron portion 14 protruding substantially horizontally on both sides of the protrusion 12. 14 and are integrally formed (FIGS. 3 to 6 and 7).
The protruding portion 12 has a tapered shape in which the width is reduced toward the tip (upper end). The shape, height and the like of the protruding portion 12 are arbitrary and can be changed in design within the scope of the present invention.
The apron section 14 has one apron section (the apron section on the left side in FIGS. 3 to 5 and 7), and the other apron section (the apron section on the right side in FIGS. 3 to 5 and 7). The apron portions 14 are arranged so as to be located on the sidewalk side, respectively, and in this embodiment, all the apron portions 14 are formed to have the same width.

Each of the apron portions 14 is formed with a slight angle (gradient) downwardly toward the protruding portion 12, though slightly.
The configuration of the apron portion 14 is not particularly limited, and the apron portions 14 and 14 may be formed to have different widths, or only one of the apron portions 14 may be down. The other apron portion 14 which is inclined (has a gradient) may be flat, or both may be formed flat.
Further, the apron section 14 may be provided on only one of the sidewalk side and the roadway side.

  In a boundary region between the apron portion 14 and the projection portion 12, a water collecting groove portion 16 that is continuously recessed in the longitudinal direction of the main body (a direction indicated by an arrow L1 in the drawing), and a predetermined position of the water collecting groove portion 16 A water collecting hole (opening area for water collecting) 18 communicating with the back surface of the main body is integrally formed.

  The water collecting groove portion 16 is recessed from the apron portion 14 with a predetermined depth, and the inner wall surface 16a inclined at an angle from the end edge 14a of the apron portion 14 has a protruding portion 12 constituting the other opposing inner wall surface. (See FIG. 5B).

One or a plurality of water collecting holes (opening areas for collecting water) 18 are integrally formed by selecting one or more according to the specification when the secondary molded article body 10 is formed.
The water collecting hole (opening area for water collecting) 18 is provided so as to extend from the inner bottom surface 16b of the water collecting groove 16 to the bottom surface 10a of the concrete secondary molded product body 10 (see FIGS. 3 to 6).

The water collecting hole (opening area for water collecting) 18 of the present embodiment is formed in a skirt-spreading shape that gradually expands from the inner bottom surface 16 b of the water collecting groove 16 toward the bottom surface 10 a of the concrete secondary molded product body 10. Have been. That is, the opening of the bottom surface 10a (water outlet opening) of the concrete secondary molded article body 10 is formed larger than the opening (water inlet opening) of the inner bottom surface 16b side of the water collecting groove 16 (FIG. 5 and FIG. 5). See FIG. 7).
Further, in the present embodiment, the water collecting hole (opening area for water collecting) 18 is formed in a rectangular shape elongated in the groove direction in plan view, but is not limited to this shape. The design can be changed within a scope of the present invention such as a circular shape and a triangular shape in a plan view.
Further, in the present embodiment, the opening (water inlet side opening) on the inner bottom surface 16b side of the water collecting groove 16 is formed leaving predetermined flat surfaces 16b ' , 16b' between the inner wall surfaces 12a, 16a, respectively. I have.

In the present embodiment, engagement grooves 20 that are continuously recessed in the length direction of the main body are integrally formed at the upper end edges of the apron portions 14 on both sides at the free end.
The engagement groove 20 is provided so that it can be firmly and tightly engaged with the pavement road when the pavement road is laid. In order to facilitate the sweeping out of mud and sand accumulated in the groove before the completion of the pavement laying, the engaging groove 20 is provided with a notch groove 20a for sweeping in an end region at the time of molding. It is molded (see FIGS. 3 to 7).

  As the filter unit 22, a filter having a predetermined configuration capable of passing only a fluid such as rainwater or sewage, that is, a filter having a predetermined configuration having a water permeability function (water permeability) can be adopted within the scope of the present invention (FIG. 3). To FIG. 7).

An example of the filter unit 22 according to the present embodiment will be described.
For example, first, a binder is formed by filling and mixing a predetermined fiber material such as a ceramic material with an adhesive made of a predetermined synthetic resin of an epoxy resin, and the predetermined binder thus configured is finely divided. Filter material is produced by kneading with a predetermined aggregate such as crushed crushed stone or fine natural stone.

Then, the concrete secondary molded product main body 10 is placed in a predetermined mold, and the filter portion material is collected into a water collecting hole (a water collecting opening area) 18 integrally formed with the concrete secondary molded product main body 10. The filter part 22 is formed by pouring the mixture into a single piece and integrally forming the same. Further, as described above, the opening (water inlet opening) on the inner bottom surface 16a side of the water collecting groove portion 16 and the concrete secondary molded product are formed without adopting the step of placing the concrete secondary molded product body 10 in a predetermined mold. One of the openings (water outlet side openings) of the bottom surface 10a of the main body 10 is sealed using a predetermined closing member, and a process of pouring the filter part material from one of the other opened openings and integrally forming the same is adopted. It is also possible.
The material of the filter section is spread, for example, after being poured into a water collecting hole (opening area for water collecting) 18, and then subjected to weighted vibration. By applying the weighted vibration in this manner, the strength is increased because the ceramic fibers contained in the binder are arranged in a state where hands are held in the lateral direction.

A specific example of the binder is not limited, but may be, for example, a fiberized synthetic resin (trade name: Fine Fiber) manufactured by Fine Chemicals Co., Ltd.
In the present embodiment, a binder formed by filling and mixing a fiber material such as a ceramic material with an adhesive made of a predetermined epoxy resin-based synthetic resin is described as an example. Is not limited to the present embodiment, for example, an adhesive made of a predetermined synthetic resin such as an acrylic resin or a urethane resin is filled with a predetermined fiber material such as a ceramic fiber or a glass fiber. Other well-known binders, such as mixed binders, can be redesigned within the scope of the present invention.

It is preferable to use an aggregate having an expansion coefficient equivalent to that of concrete.
As described above, the concrete having the opening area for collecting water is formed by integrally forming with the concrete secondary molded article main body 10 by using gravel, crushed stone, natural stone, or concrete waste having the same expansion coefficient as concrete. The strength of the secondary molded article itself can be improved.
Crushed stone and natural stone are not particularly limited, and the particle size, stone shape, and the like are arbitrary within the scope of the present invention.

  In the present embodiment, at the factory production stage, the filter portion 22 is integrally formed in the water collecting hole (opening region for water collecting) 18 formed in the concrete secondary molded product main body 10, and the filter portion 22 is integrally formed. Of concrete secondary molded product (pedestrian road boundary block) is installed on the drainage channel at the enforcement site, but the concrete secondary molded product body without the filter part 22 is collected at the enforcement site. It is also possible to adopt a form in which the filter portion 22 is integrally formed with the water hole (opening area for collecting water) 18, which is within the scope of the present invention.

Further, as the material of the filter portion constituting the present invention, various configurations can be adopted within the scope of the present invention without being limited to the above-described configuration. For example, "Permeable Park Stone (registered trademark)" manufactured by Taisei E & L Co., Ltd. using a predetermined fibrous synthetic resin can be employed, which is within the scope of the present invention.
In addition, for example, a binder is formed by filling a ceramic resin, a glass fiber, a carbon fiber, or the like into a synthetic resin agent such as an acrylic resin or a urethane resin and mixing them, and a predetermined binder configured as such is crushed ceramic. -It is also possible to produce a filter part material by kneading with aggregate such as recycled crushed stone.

FIGS. 8 to 12 show another form of the pedestrian road constituting the road structure (pedestrian road boundary structure) A of FIGS. 1 and 2 together with the pedestrian road boundary block of the first embodiment shown in FIGS. An embodiment in which the present invention is applied to a boundary block will be described.
That is, in each block, a water collecting hole (opening area for water collecting) 18 is provided at a predetermined position, and the filter unit 22 is integrally formed with the water collecting hole (opening area for water collecting) 18. .
The configuration of the filter unit 22 and the like is the same as in the above-described embodiment, and a description thereof will not be repeated.

FIG. 8 shows a pedestrian crossing block 100 of a square type, which has the same appearance as the standard type of pedestrian crossing block of the first embodiment. An opening (not shown) is formed through the area, and a cover 101 having the same form as the projection 12 is detachably provided so as to cover the area of the opening. By removing the cover 101, the inside of the drainage channel (side groove) can be confirmed. In the present embodiment, they are arranged at predetermined positions shown in FIGS.
In the pedestrian road boundary block 100 of the basin type of the present embodiment, a water collecting groove 16 is provided similarly to the standard part type of the pedestrian road boundary block shown in the above-described embodiment, and a predetermined interval is provided in the water collecting groove 16. A plurality of water collecting holes (water collecting opening areas) 18 are formed by opening, and a filter part material is poured into these water collecting holes (water collecting opening areas) 18 to integrally form the filter part 22. .
The other configuration, operation, and effect are the same as those of the first embodiment, and a description thereof will be omitted.

FIG. 9 shows a sidewalk cut-off type sidewalk boundary block 200 which differs from the standard embodiment in that the protruding portion 12 of the standard section-type sidewalk road boundary block is formed extremely short (low). Other forms are substantially the same.
In the sidewalk boundary section block 200 of the undercut sidewalk type according to the present embodiment, a water collecting groove 16 is provided similarly to the standard section type sidewalk road boundary block 1 shown in the above-described embodiment, and a predetermined water collecting groove 16 is provided. A plurality of water collecting holes (water collecting opening areas) 18 are formed at intervals, and a filter part material is poured into these water collecting holes (water collecting opening areas) 18 to integrally form the filter part 22. ing.
In the present embodiment, it is disposed at a predetermined position shown in FIGS.
The other configuration, operation, and effect are the same as those of the first embodiment, and a description thereof will be omitted.

FIG. 10 is a block diagram of a walkway boundary block 300 of a participant entry section type, in which the protrusion 12 of the standard section type walkway boundary block 1 of the first embodiment is extremely short (low) and formed short. 12 is cut off at the substantially central region, and a passage 301 is formed in a predetermined upward and inclined shape (having a slope) from the roadway side toward the sidewalk side, through which a wheelchair wheel 301 can pass. Other forms are substantially the same except for the difference. In this embodiment, the water collecting groove 16 and the filter 22 are provided only on the side of the road, but the water collecting groove 16 and the filter 22 are also provided on the sidewalk as in the first embodiment. It is also possible to provide.
In addition, the edge surface 303 of the cut and formed passage is chamfered in an R shape so that the wheel of the wheelchair is not easily caught.
In the walkway boundary block 300 of the handicapped entry section type of the present embodiment, a water collecting groove 16 is provided similarly to the standard section type of the walkway boundary block 1 shown in the above embodiment, and a predetermined water collecting groove 16 is provided. A plurality of water collecting holes (water collecting opening areas) 18 are formed at intervals, and a filter part material is poured into these water collecting holes (water collecting opening areas) 18 to integrally form the filter part 22. ing.
In the present embodiment, it is disposed at a predetermined position shown in FIGS.
The other configuration, operation, and effect are the same as those of the first embodiment, and a description thereof will be omitted.

FIG. 11 shows a pedestrian-side boundary block 400 of the entry section type, in which the projection 12 of the standard-section-type sidewalk boundary block 1 of the first embodiment is formed extremely short (low), and the projection 12 formed short. However, the other form is substantially the same except that the form is different in that it is formed in a predetermined ascending slope (having a slope) from the roadway side toward the sidewalk side.
In the entry section type pedestrian road boundary block 400 of the present embodiment, the water collecting groove 16 is provided similarly to the standard section type pedestrian road boundary block 1 shown in the above-described embodiment, and the water collecting groove 16 has a predetermined interval. A plurality of water collecting holes (water collecting opening areas) 18 are formed, and a filter part material is poured into these water collecting holes (water collecting opening areas) 18 to integrally form the filter part 22. I have.
In this embodiment, the water collecting groove 16 and the filter 22 are provided only on the side of the road, but the water collecting groove 16 and the filter 22 are also provided on the sidewalk as in the first embodiment. It is also possible to provide.
In the present embodiment, it is disposed at a predetermined position shown in FIGS.
The other configuration, operation, and effect are the same as those of the first embodiment, and a description thereof will be omitted.

FIG. 12 shows a corner-shaped portion-type walkway boundary block 500, which is formed by chamfering one end 12a in the length direction of the protrusion 12 of the standard portion-type walkway boundary block 1 of the first embodiment into an R shape. Only the form is different in that it is performed, and the other forms are substantially the same.
In the corner part type pedestrian road boundary block 500 of the present embodiment, a water collecting groove 16 is provided similarly to the standard part type pedestrian road boundary block 1 shown in the above embodiment, and a predetermined water collecting groove 16 is provided. A plurality of water collecting holes (water collecting opening areas) 18 are formed at intervals, and a filter part material is poured into these water collecting holes (water collecting opening areas) 18 to integrally form the filter part 22. ing.
In the present embodiment, it is disposed at a predetermined position shown in FIGS.
The other configuration, operation, and effect are the same as those of the first embodiment, and a description thereof will be omitted.

Therefore, drainage channels (side gutters or the like) in which each of the sidewalk roadway boundary blocks 1, 100, 200, 300, 400, and 500 formed by integrally forming the filter portion 22 in this manner are provided at a predetermined length at the enforcement site. By arranging a large number of them above, a road structure (pedestrian road boundary structure) A that is continuous in the length direction of the road as shown in FIGS. 1 and 2 is formed.
According to the present embodiment, as described above, since the sidewalk boundary block 1 (100, 200, 300, 400, 500) in which the filter portion 22 is integrally formed is provided, the sidewalk flows on the road (roadway / sidewalk). Rainwater or the like once collects in the water collecting groove 16 provided on the base end side of the protrusion 12 and flows in the water collecting groove 16 in a predetermined inclined direction. Then, the flowing rainwater flows down from the water-permeable filter portion 22 into the drainage channel. At this time, since only the rainwater (fluid) passes through the filter section 22, only the rainwater flows down into the drainage channel, and sand, mud, fallen leaves, dust and the like accumulate in the drainage channel, and the drainage function is reduced. Failures are also reduced. In addition, mud, fallen leaves, and the like remaining on the filter unit 22 may be simply removed along the water collecting groove 16 using a predetermined scraping cleaning tool or the like.

  FIG. 13 shows another embodiment of the present invention.

  FIG. 13 is a schematic vertical cross-sectional perspective view showing a partly omitted example of a sidewalk boundary block 600 in which a large water collecting hole (water collecting opening area) 18 is provided and a large filter section 22 area is provided. In addition, it has the same configuration as the configuration of each embodiment shown in the first embodiment, except that the water collecting hole (water collecting opening area) 18 is provided large and the filter unit 22 region is provided large. The description is omitted. It is also possible to provide the water collecting groove 16.

  In the present embodiment, the water collecting hole (water collecting opening area) 18 is provided extremely larger than the water collecting hole (water collecting opening area) 18 of each of the above-described embodiments. This is an embodiment in which a filter portion 22 integrally formed with a water collecting opening region (18) is formed large. In addition, the whole form of the sidewalk boundary block 600 is not specifically limited, A well-known form is employ | adopted.

The water collecting hole (opening area for water collecting) 18 in the present embodiment is formed in a substantially L-shape in cross-sectional view continuously over the apron portion (flat portion) 14 and the side wall surface (rise surface portion) 12a of the projection 12. It is formed large. That is, both the water inlet side opening and the water outlet side opening are formed extremely large as compared with the above embodiments.
The filter portion 22 is integrally formed by pouring the material of the filter portion into the fully formed water collecting hole (opening region for water collecting) 18.
The configuration and the like of the filter unit 22 are the same as those of the above-described embodiment, and thus the description thereof will be omitted.
In the present embodiment, a so-called standard part type pedestrian road boundary block is adopted as an example, but the present invention can also be used for each type of pedestrian road boundary block shown in FIGS.

  Further, a water collecting hole (opening area for water collecting) 18 is formed so as to penetrate over the upper and lower surfaces of the apron section 14, and the filter section 22 is formed integrally with the water collecting hole (opening area for water collecting) 18. The water collecting hole (opening area for water collecting) 18 penetrates from the side wall surface 12a of the projection 12 to the bottom through the inside of the projection 12; The filter portion 22 may be formed integrally with the water opening region 18), and is optional.

According to the present embodiment, the area of the filter portion 22 having water permeability can be made large, and even when the filter portion 22 is made large, the filter portion 22 is integrally formed with the concrete secondary molded product body 10. Also, the strength is not reduced.
Therefore, even if a large amount of rainwater or sewage is generated, the large amount of rainwater and the like can be smoothly drained into the drainage channel (side gutter). Also, there is no danger that rainwater or the like will accumulate on the road, and the danger of flooding will be reduced.

  FIG. 14 shows another embodiment of the present invention.

FIG. 14 is a schematic longitudinal perspective view partially showing an example of a road structure (underdrain type drainage channel) A formed by connecting a large number of concrete secondary molded products (underdrain type side grooves) 700 of the present invention.
In this embodiment, a culvert-type gutter provided with a drainage channel 702 is employed as a concrete secondary molded product, and a water collecting hole (opening area for collecting water) is provided on an outer surface (a surface exposed to the outside) 701. A plurality of filters 18 are provided, and a filter section 22 is formed integrally with the water collecting holes (opening areas for collecting water) 18.

The water collecting hole (opening area for water collecting) 18 in the present embodiment is formed so as to penetrate from the outer surface 701 toward the inner surface, and the water collecting hole (opening area for water collecting) 18 is provided with a filter material. Is poured in a predetermined amount to form the filter portion 22 integrally.
In addition, the water collection hole (opening area for water collection) 18 of the present embodiment is formed to have the same size from the water inlet side opening to the water outflow side opening. It may be formed by expanding the skirt toward the side opening.
According to the present embodiment, the water collecting hole (water collecting opening area) 18 is flat and flat by the filter unit 22 even when walking on the culvert type gutter 700 configured as described above. Since it is configured, there is no danger that the heel of a pedestrian's shoe or the like is pinched.
Since the filter unit 22 and other configurations are the same as those of the above-described embodiments, the description thereof will be omitted.
In the present embodiment, the illustrated culvert-type gutter 700 is employed as an example, but the present invention can also be used for culvert-type gutter diagrams having other forms.

  The present invention relates to a concrete secondary molded product provided with a water collecting hole (opening area for collecting water), a concrete secondary molded product other than a pedestrian road boundary block, a culvert type gutter, for example, a gutter lid, and the like. It can be used for all concrete moldings that can have an open area for collecting water.

DESCRIPTION OF SYMBOLS 1 Secondary molded article of permeable concrete 10 Secondary molded article body 18 Open area 22 for collecting water Filter part 30 Drainage channel

Claims (4)

A concrete secondary molded article provided on the drainage channel and capable of guiding the fluid on the road surface into the drainage channel,
A concrete molded article body provided with an opening area for collecting water,
A filter unit integrally formed in the opening area and capable of passing only a fluid ,
The secondary molded article main body is disposed between a sidewalk and a road, and includes a protruding portion indicating a boundary between the sidewalk and the road, and an apron protruding on both sides of the protruding portion. A roadway boundary block,
In a boundary region between the protrusion and the apron, a long water collecting groove is provided, which is continuously recessed in a longitudinal direction of the main body,
The opening area is provided intermittently in the continuous direction of the water collecting groove, and is provided so as to penetrate from an inner bottom surface of the water collecting groove to a bottom surface area of the concrete secondary molded product body.
The water- permeable concrete secondary molded product , wherein left and right flat surface portions are provided on both sides of the opening region in a width direction which is a direction orthogonal to a continuous direction of the water-collection groove. . 2. The permeable concrete secondary molded product according to claim 1 , wherein inner wall surfaces on both sides in the width direction of the water collecting groove are raised from the inner bottom surface of the water collecting groove at an obtuse angle . 3. At the upper end edge on the free end side of the apron portion, an engagement groove which is continuously recessed in the longitudinal direction of the main body is provided,
The engaging groove is provided continuously from the inner wall surface portion provided continuously from the upper end edge on the free end side of the apron portion, a bottom portion provided continuously from the inner wall surface portion, and provided continuously from the bottom surface portion. With the outer wall surface portion formed, formed in a concave groove continuous in the longitudinal direction of the main body,
The permeable concrete secondary molded product according to claim 1, wherein a notch groove for sweeping is formed in an end region of the engagement groove . A drainage channel provided over a predetermined length region, and a concrete secondary molded product disposed in large numbers so as to cover the drainage channel,
A road structure, wherein the concrete molded article is the water-permeable concrete molded article according to any one of claims 1 to 3 .

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