JP6474849B2 - Drainage - Google Patents

Description

  The present invention relates to a drainage basin embedded in a concrete layer below an asphalt layer, and in particular, the water that has flowed into the gap generated by the separation of the outer peripheral wall of the drainage basin and the concrete layer into the drainage basin. It relates to the structure to be introduced.

  Conventionally, on a highway, for example, a concrete layer as a foundation is formed under an asphalt layer forming a road surface, and a drainage basin for preventing water from staying on the road surface is embedded in the concrete layer. . In recent years, a resin material having excellent corrosion resistance has been used as a material for such a drainage basin, instead of a conventional metal material.

  By the way, regarding the linear expansion coefficient, the difference between resin and concrete is larger than the difference between metal and concrete. For this reason, when a resin material is used as the material for the drainage basin, the outer wall of the drainage basin and the concrete layer are likely to peel off, and a gap may be formed between the outer peripheral wall of the basin and the concrete layer. Increases nature. As a result, water flows through the gaps formed on the outer peripheral wall of the drainage basin, and problems such as deterioration in appearance and rusting are likely to occur (hereinafter, the detachment between the outer peripheral wall of the drainage basin and the concrete layer). ) May be referred to as a peeling gap).

  Therefore, in order to solve such a problem, a structure is disclosed in which a basin is provided on the outer periphery of the main body of the drainage basin and a hole penetrating the inside and outside of the main body is provided (for example, see Patent Document 1). According to this structure, the water flowing through the peeling gap is collected in the tub and flows into the inner periphery of the main body from the hole. For this reason, according to Patent Document 1, the water that has flowed through the separation gap can be guided to the inner periphery of the drainage basin, and the above problems can be solved.

  However, according to the drainage basin of Patent Document 1, in order to provide a hole, after forming the main body, it is necessary to make a hole directly in the main body or use a nest in the mold. Also, changing the shape, position, size, etc. of the hole requires various changes in the manufacturing process, so the degree of freedom with respect to changing the shape, position, size, etc. of the hole is small.

Japanese Patent Laying-Open No. 2015-105486

  The present invention has been made in order to solve the above-described problems, and its purpose is to allow water that has passed through a separation gap formed between the outer peripheral wall of the drainage basin and the concrete layer to pass through the inner periphery of the drainage basin. It is intended to increase the degree of freedom with respect to changes in shape, position, size, etc., for the holes leading to.

The drainage basin of the first invention of the present application drains from a road surface provided with a concrete layer below the asphalt layer, and has an upper opening through which drainage flows and a lower opening through which the drained water flows out. In the concrete layer, the upper opening is opened to the air. Further, the drainage basin includes the following upper cylinder, lower cylinder, and fastener. That is, the upper cylindrical body is made of resin, has an upper opening and another opening that opens below the upper opening, and is embedded in the concrete layer. The lower cylinder has a lower opening and another opening that opens above the lower opening, and is provided separately from the upper cylinder and embedded in the concrete layer. Moreover, a fastener fixes the upper cylinder and a lower cylinder, and fixes the relative position of an upper cylinder and a lower cylinder.

  Then, an annular space is formed by fitting a lower end portion having another opening in the upper cylindrical body into another opening of the lower cylindrical body, and the annular space is opened to the concrete layer on the upper side. The Furthermore, an upper and lower gap is formed between the lower end of the upper cylinder and the inner wall of the lower cylinder, and the annular space is opened to the inner periphery of the lower cylinder by the upper and lower gaps. ing.

  As a result, even if a separation gap is formed between the outer peripheral wall of the drainage basin and the concrete layer, the annular space can be used as a trough, and water that has passed through the separation gap can be collected from the upper and lower gaps. It can be guided to the inside (hereinafter, the annular space may be referred to as a dredging space, and the vertical gap may be referred to as a drainage hole). For this reason, even if the main body of the drainage basin is divided into the upper and lower cylinders, the water that has passed through the separation gap can be guided to the inside of the drainage basin. In addition, by changing the relative position of the upper cylinder and the lower cylinder, or by changing the shape of the lower end of the upper cylinder or the inner wall of the lower cylinder, the shape, position, and size of the drain holes are changed. The size can be changed freely. For this reason, a freedom degree can be raised regarding the change of the shape of a drainage hole, a position, a magnitude | size, etc.

According to the drainage basin of the second invention subordinate to the first invention of the present application, the inner wall of the lower cylindrical body has a tapered surface inclined downward toward the inner peripheral side, and the lower end of the upper cylindrical body is A vertical gap (drainage hole) is formed by facing the taper surface in the vertical direction.
Thereby, the water gathered in the dredging space can easily flow to the inner peripheral side. For this reason, it becomes easy to guide water to the inner periphery of the drainage basin.

According to the drainage basin of the third invention subordinate to the first and second inventions of the present application, the upper opening of the lower cylindrical body and the lower end of the upper cylindrical body are rectangular, and there are vertical gaps at the corners of the rectangle. Exists.
As a result, it is possible to prevent a situation in which water accumulates at the corners of the rectangle, that is, the corners of the eaves space and is not drained.

It is sectional drawing which shows the state by which the drainage basin was embed | buried under the concrete layer. It is sectional drawing which shows the inside of a drainage basin from a transversal direction. It is sectional drawing which shows the inside of a drainage basin from the longitudinal direction. It is an exploded view of a drain. It is a top view of a greeching receptacle. It is VI-VI sectional drawing of FIG. It is VII-VII sectional drawing of FIG. It is a top view of an upper cylinder. It is IX-IX sectional drawing of FIG. It is XX sectional drawing of FIG. It is a top view of a lower cylinder. It is XII-XII sectional drawing of FIG. It is XIII-XIII sectional drawing of FIG. FIG. 4 is a partially enlarged view of FIG. 3.

  Hereinafter, modes for carrying out the present invention will be described based on examples. In addition, an Example discloses a specific example, and it cannot be overemphasized that this invention is not limited to an Example.

[Configuration of Example 1]
The structure of the drain 1 of Example 1 is demonstrated using drawing.
The drainage basin 1 is disposed in a groove on the side of a road to drain rainwater from a road surface such as an expressway or a bridge, for example, and as shown in FIG. 1, a concrete layer 2 below an asphalt layer (not shown). It is buried in. Further, the drainage basin 1 is provided with a basin space 4 for collecting water flowing through the separation gap 3 and a hole 5 for guiding the water collected in the basin space 4 to the inner periphery of the drainage basin 1.
Hereinafter, the configuration of the drainage basin 1 will be described in detail.

The drainage basin 1 has an upper opening 7 into which wastewater flows and a lower opening 8 from which the drained water flows out, and is embedded in the concrete layer 2 so that the upper opening 7 is opened in the air.
The drainage basin 1 includes an upper cylindrical body 10, a lower cylindrical body 11, and a fastener 12 as follows. Hereinafter, the upper cylinder 10, the lower cylinder 11, and the fastener 12 will be described in detail with reference to FIGS.

  First, the upper cylinder 10 is a rectangular flat cylinder having an upper opening 7 and another opening that opens below the upper opening 7 (hereinafter, the upper opening 7 is an opening 7uu and another opening is opened). 7ud and 7ud) are also rectangular (see FIGS. 8 to 10). The upper cylinder 10 is a resin molded product made of fiber reinforced plastic (FRP) in which fibers such as glass fibers are dispersed in plastic, and is embedded in the concrete layer 2 (see FIG. 1 and the like). ).

  Further, a grating receiver 15 for receiving the grating 14 is fitted on the upper side of the upper cylinder 10 (see FIGS. 2 and 3). Here, the grating receiver 15 is provided in a rectangular shape so as to be fitted into the opening 7uu using a steel material such as SS400, and has a mounting portion 16 on which the grating 14 is placed, and an opening 17 through which drainage is passed (FIG. 5). (See FIG. 7 etc.)

  The grating receiver 15 is supported from below by a bolt 22 attached to the lower cylinder 11 (see FIG. 3). Moreover, the grating 14 is a known shape in which steel materials are assembled in a lattice shape. Further, a net-like tube 18 made of synthetic fiber is mounted between the grating receiver 15 and the upper cylindrical body 10 to suppress water retention (see FIGS. 2 and 3).

  Next, the lower cylinder 11 has a lower opening 8 and another opening that opens above the lower opening 8, and is provided separately from the upper cylinder 10 and embedded in the concrete layer 2 (see FIG. 1-4, FIG. 11-13, etc .: Hereinafter, the lower opening 8 may be referred to as an opening 8dd, and another opening may be referred to as an opening 8du). The lower cylinder 11 is also a resin molded product made of the same FRP as the upper cylinder 10.

The lower cylinder 11 has an upper part 11a, a middle part 11b, and a lower part 11c as follows (see FIGS. 11 to 13 and the like).
First, the upper portion 11a has an opening 8du, and the lower end portion 10d of the upper cylindrical body 10 is fitted into the opening 8du to form an annular space between the upper cylindrical body 10 and the fastener 12 Is fastened to the upper cylindrical body 10 (see FIGS. 1 to 4 and the like).

  Moreover, the upper part 11a is provided in the rectangular cylinder shape so that the lower end part 10d of the upper cylinder 10 may be fitted. An annular space formed between the inner periphery of the upper portion 11 a and the outer periphery of the upper cylindrical body 10 functions as the above-described saddle space 4. Moreover, the packing 19 which consists of a nonwoven fabric of a polyester fiber is mounted | worn in the heel space, for example (refer FIGS. 1-4, FIG. 14, etc.). In the state where the drainage dredger 1 is embedded in the concrete layer 2, the dredging space 4 is open to the concrete layer 2 on the upper side (see FIG. 1 and the like).

  Here, the fastener 12 is, for example, a bolt 12a and a nut 12b (see FIGS. 1, 14 and the like). Then, the upper cylinder 10, the packing 19 and the upper part 11 a are sandwiched between the upper part of the upper cylinder 10 and the upper part 11 a of the lower cylinder 11 through the shaft part of the bolt 12 a and the head part of the bolt 12 a and the nut 12 b. The cylinder 10 and the lower cylinder 11 are fastened, and the relative positions of the upper cylinder 10 and the lower cylinder 11 are fixed.

Next, the middle portion 11b is a portion that forms the hole 5 by facing the lower end portion 10d of the upper cylindrical body 10 in the vertical direction, and can be seen in a rectangular shape when viewed from above (FIG. 1). , FIG. 4, FIG. 11 to FIG. 13 etc.). The lower end portion 10d is a portion for forming the opening 7ud.
And if the direction parallel to each of the long side and the short side of the rectangle is defined as the long side direction and the short side direction, on the inner periphery of the middle part 11b, the base part having surfaces parallel to the long side at both ends in the short side direction 21 is provided (see FIGS. 3 and 11, etc.), and the base portion 21 is provided with a screw hole 23 into which the bolt 22 is screwed.

The grating receiver 15 is supported by a bolt 22 screwed into the screw hole 23. The vertical position of the grating 14 can be adjusted by adjusting the screwing of the bolt 22 into the screw hole 23.
Further, a rectangular taper surface 24 is provided between the base portions 21 so as to be located on the lower side toward one end in the longitudinal direction, and a flat surface 25 is continuous with one end in the longitudinal direction of the taper surface 24. Then, the inner periphery of the lower portion 11 c is opened on the plane 25. In addition, the upper surface of the base part 21 is slightly inclined, and exists closer to the taper surface 24 and the flat surface 25.

  Here, the lower end portion 10d of the upper cylindrical body 10 is also rectangular, and there are two long portions 10L parallel to the longitudinal direction and two short portions 10S parallel to the short direction (FIGS. 8 to 9). 10). The short portion 10S is provided with three semicircular cutouts 26 at equal intervals, and the long portion 10L is provided with four semicircular cutouts 26 at equal intervals (FIG. 9, FIG. 9). See FIG. Then, in a state where the upper cylindrical body 10 and the lower cylindrical body 11 are fastened, the two long portions 10L are respectively placed on the base portion 21 on one end side and the other end side in the lateral direction (see FIG. 14). The two short portions 10S are separated from the tapered surface 24 and the flat surface 25, respectively.

  Thereby, a semicircular gap that opens in the vertical direction is formed between the base portion 21 and the lower end portion 10d, and this gap functions as the hole 5 (see FIGS. 1 and 14). Further, a rectangular gap that extends in the short direction and opens in the vertical direction is formed between the tapered surface 24, the plane 25, and the lower end portion 10d, and this gap also functions as the hole 5 (FIG. 1). reference.). Then, the heel space 4 is opened to the inner periphery of the lower cylindrical body 11 by these holes 5. Further, the rectangular corner of the lower end portion 10d faces the tapered surface 24 and the flat surface 25 away from each other in the vertical direction to form a hole 5.

A fallout prevention chain 27 is bridged between the middle portion 11b and the grating receiver 15.
Further, the lower portion 11c has a cylindrical shape, and an upper side of the inner periphery of the lower portion 11c is opened by a plane 25. Further, an opening 8dd is formed on the lower side of the inner periphery of the lower portion 11c. A mold tube 29 is arranged around the lower portion 11c (see FIGS. 1 to 4 and FIGS. 11 to 13).

[Effects of Examples]
The drainage basin 1 of an Example is provided with the upper cylinder 10, the lower cylinder 11, and the fastener 12 as follows.
That is, the upper and lower cylinders 10 and 11 are both made of resin, provided separately from each other, and embedded in the concrete layer 2. The upper cylinder 10 has upper and lower openings 7 uu and 7 ud, and the lower cylinder 11 has upper and lower openings 8 du and 8 dd. The fastener 12 fastens the upper cylindrical body 10 and the lower cylindrical body 11 to fix the relative positions of the upper cylindrical body 10 and the lower cylindrical body 11.

  Then, the lower end portion 10d having the opening 7ud in the upper cylindrical body 10 is fitted into the opening 8du of the lower cylindrical body 11, so that an annular ridge space 4 is formed. 2 is released. Further, a hole 5 is formed between the lower end portion 10 d and the middle portion 11 b of the lower cylindrical body 11, and the collar space 4 is opened to the inner periphery of the lower cylindrical body 11 by the hole 5.

  As a result, even if the separation gap 3 is formed between the outer peripheral wall of the upper cylindrical body 10 and the concrete layer 2, the water that has passed through the separation gap 3 is collected in the dredging space 4 from the hole 5 to the inside of the drainage dredge 1. Can lead. Also, by changing the relative position between the upper cylinder 10 and the lower cylinder 11, or by changing the shape of the inner wall of the lower end 10d of the upper cylinder 10 and the middle part 11b of the lower cylinder 11, The shape, position, size, and the like of the hole 5 can be freely changed. For this reason, a freedom degree can be raised regarding the change of the shape of the hole 5, a position, a magnitude | size, etc.

Further, a taper surface 24 that is inclined downward toward the inner peripheral side is present in the middle portion 11b of the lower cylindrical body 11, and the lower end portion 10d of the upper cylindrical body 10 faces the tapered surface 24 in the vertical direction. A hole 5 is formed.
As a result, the water collected in the dredging space 4 is likely to flow to the inner peripheral side, so that the water can be easily guided to the inner periphery of the drainage dredger 1.

Furthermore, the opening 8du of the lower cylinder 11 and the lower end 10d of the upper cylinder 10 are rectangular, and the holes 5 exist at the corners of the rectangle.
As a result, it is possible to prevent a situation in which water accumulates at the corners of the rectangle, that is, the corners of the eaves space 4 and is not drained.

[Modification]
Various modifications of the present invention can be considered without departing from the gist thereof.
For example, according to the drain 1 of the embodiment, the lower cylinder 11 is made of resin, but the lower cylinder 11 may be made of metal.
Further, according to the drainage basin 1 of the example, the shapes of the openings 7uu, 7ud, and 8du are rectangular, and the shape of the opening 8dd is circular. However, the shapes of the openings 7uu, 7ud, 8du, and 8dd are It is not limited to an example, It can change into various aspects. For example, the openings 7ud and 8du may be circular and the eaves space 4 may be cylindrical.

Further, according to the drainage tub 1 of the embodiment, the taper surface 24 is provided only on the other end side in the longitudinal direction. However, for example, the taper surface 24 may be provided also on one end side in the longitudinal direction. A tapered surface 24 may be provided on one end side and the other end side in the hand direction.
Moreover, according to the drainage tank 1 of the Example, the base part 21 was provided in the both ends of the transversal direction, but you may provide the base part 21 in the both ends of a longitudinal direction.
Furthermore, according to the drainage basin 1 of the embodiment, the grating receiver 15 and the upper cylindrical body 10 are provided separately, but the grating receiver 15 and the upper cylindrical body 10 may be provided as an integrated object.

DESCRIPTION OF SYMBOLS 1 Drainage 2 Concrete layer 4 Reed space (annular space) 5 Hole (upper and lower gaps) 7, 7 uu Upper opening 8, 8 dd Lower opening 7 ud, 8 du Another opening 10 Upper cylinder 10 d Lower end 11 Lower cylinder 12 Fastener

Claims (3)

It drains from the road surface where the concrete layer (2) is provided under the asphalt layer,
An upper opening wastewater flows (7,7uu), the inflow wastewater and a lower opening (8,8dd) flowing, the upper opening is embedded in the concrete layer as open to the air drainage In 桝 (1),
An upper cylinder made of resin (10) having the upper opening and another opening (7ud) that opens below the upper opening, and embedded in the concrete layer;
A lower cylinder (11) having a lower opening and another opening (8du) that opens above the lower opening, provided separately from the upper cylinder and embedded in the concrete layer;
A fastener (12) for fastening the upper cylindrical body and the lower cylindrical body and fixing a relative position between the upper cylindrical body and the lower cylindrical body;
An annular space (4) is formed by fitting a lower end (10d) having the other opening in the upper cylindrical body into another opening of the lower cylindrical body. Open to the concrete layer on the upper side,
Furthermore, a vertical gap (5) that opens in the vertical direction is formed between the lower end of the upper cylindrical body and the inner wall of the lower cylindrical body,
The drainage basin characterized in that the annular space is opened to the inner periphery of the lower cylindrical body by the vertical gap. The drainage basin according to claim 1,
The inner wall of the lower cylindrical body has a tapered surface (24) that is inclined downward toward the inner peripheral side,
The drainage tank according to claim 1, wherein a lower end portion of the upper cylindrical body faces the tapered surface in the vertical direction to form the vertical gap. In the drainage basin according to claim 1 or 2,
The drainage tank according to claim 1, wherein the upper opening of the lower cylinder and the lower end of the upper cylinder are rectangular, and the upper and lower gaps exist at corners of the rectangle.