JP2013087529A - Side ditch structure, and construction method of side ditch structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a side ditch structure which can be easily constructed even when the side ditch structure is to be made different according to a state of a road to be constructed, and a construction method of the side ditch structure.SOLUTION: The side ditch structure includes: a plurality of side ditch blocks 1 having a drain channel formed inside, provided with a fitting step part lowered from an upper surface on one side end in a width direction, and arranged along a boundary of a vehicular road and a side walk of a road; and a boundary block whose one side end is mounted on the fitting step part of the side ditch block 1. The construction method of the side ditch structure includes: a selection step of selecting at least one kind of boundary block from two or more kinds of boundary blocks having different inclination angles of a side face and an upper surface and a height; a side ditch block construction step of mounting the side ditch blocks 1 in the state of connecting the fitting step parts in series; and a boundary block mounting step of fitting and mounting one side end of the boundary block on the fitting step part of the side ditch block 1.

Description

  The present invention relates to a gutter structure embedded along a road and to a side of the gutter, and a construction method of the gutter structure.

  On paved roads such as ordinary roads and highways, drainage facilities such as side ditches are provided at the boundary between the roadway and the sidewalk to prevent rainwater from accumulating on the road surface. This gutter can flow rainwater or the like through an opening partly opened and drain it through a water channel provided inside. Some roads in which these side grooves are laid have a structure in which a boundary block that separates a roadway and a sidewalk is placed on the side of the side grooves (see, for example, Patent Document 1). In addition, there is one in which a boundary block and a side groove are integrally formed, that is, a boundary block including a drainage channel and a curb portion is laid on a road (see, for example, Patent Document 2).

JP 2007-092503 A JP 2001-279607 A

  However, in the side groove and the boundary block described in Patent Document 1, when connecting these to the road, adjustment (street adjustment) is required to connect them in a straight line. For example, when laying the side groove, a thread is stretched at the start point and the end point where the side groove is continuously provided, and the side groove is disposed along the thread. Similarly, when laying a boundary block, a thread is stretched at the start point and end point where the boundary block is continuously provided, and the boundary block is arranged along this thread. As described above, in the side groove structure described in Patent Document 1, adjustment is required twice, and the work is complicated.

  On the other hand, in the boundary block described in Patent Document 2, since the boundary block itself is provided with a drainage channel, the adjustment can be completed only once as the boundary blocks are continuously provided. However, in this boundary block, when changing the gutter structure according to the condition of the road to be constructed (for example, when changing the height of the curb portion or the depth of the drainage channel), a boundary block is prepared for each structure. The manufacturing cost and manufacturing effort of the boundary block are required.

  The present invention has been made in view of such circumstances, and the purpose thereof is a side groove structure that can be easily constructed and a side groove even when the side groove structure is varied according to the state of the road to be constructed. It is to provide a construction method of the structure.

The present invention has been proposed in order to achieve the above-described object. In the first aspect of the present invention, a fitting step portion that is one step down from the upper surface is provided at one side end portion in the width direction on the sidewalk side. A gutter block having a drainage channel formed therein,
A boundary block placed on the fitting step of the side groove block;
A method for constructing a gutter structure with
A selection step of selecting at least one kind of boundary block from a plurality of kinds of boundary blocks having different inclination angles of the side surface and the upper surface and different heights;
A side groove block construction step for arranging a plurality of side groove blocks along a boundary between the roadway and the sidewalk in a state where each fitting step portion is connected in series on a predetermined line;
A boundary block placing step of fitting and placing one side end of the boundary block on the fitting step of the side groove block;
It is the construction method of the side groove structure characterized by including.

  According to a second aspect of the present invention, in the selection step, the cross-sectional area of the inner space of the drainage channel is different, but the upper surface opening width of the drainage channel and the shape of the fitting step portion are arranged in a plurality of types of side groove blocks. 2. The method for constructing a gutter structure according to claim 1, wherein at least one type of gutter block is selected.

  According to a third aspect of the present invention, in the selecting step, at least two types of gutter blocks are selected so that the depth of the drainage channel is gradually increased toward the catchment basin. It is the construction method of the side groove structure as described in.

According to a fourth aspect of the present invention, the fitting step portion of the side groove block includes a horizontal placement surface, and a regulation surface that stands up with respect to the placement surface from the end of the placement surface on the roadway side. Have
The side surface of the boundary block on the side groove block side is inclined in a direction in which the upper end edge is located on the side opposite to the regulation surface in a state where the one end portion is placed on the placement surface,
The method further comprises a joining step of filling a gap formed between the regulating surface and the inclined side surface on the side groove block side of the boundary block with a joining material after the boundary block placing step. It is the construction method of the gutter structure in any one of Claim 3.

The one according to claim 5 is provided with a fitting step portion that is lowered by one step from the upper surface at one side end portion in the width direction on the sidewalk side, and a side groove block in which a drainage channel is formed,
A boundary block placed on the fitting step of the side groove block;
With
A plurality of side groove blocks are arranged along a boundary between the roadway and the sidewalk in a state where each fitting step is connected in series on a predetermined line, and one side end of the boundary block is fitted to the fitting step of each side groove block It is a gutter structure characterized in that the parts are fitted and placed.

  According to a sixth aspect of the present invention, in the side groove structure according to the fifth aspect, a reflective surface material is provided on a side surface on the roadway side of the boundary block.

According to a seventh aspect of the present invention, the road surface side upper surface of the side groove block includes a warning generation surface provided with a convex portion for generating vibration by the passage of the vehicle,
The side groove structure according to claim 5 or 6, wherein the warning generation surface is a surface continuous with a road surface of a roadway.

According to the invention of claim 1, a side groove block provided with a fitting step portion that is lowered by one step from the upper surface at one side end portion in the width direction on the sidewalk side, and a drainage channel formed therein,
A boundary block placed on the fitting step of the side groove block;
A method for constructing a gutter structure with
A selection step of selecting at least one kind of boundary block from a plurality of kinds of boundary blocks having different inclination angles of the side surface and the upper surface and different heights;
A side groove block construction step for arranging a plurality of side groove blocks along a boundary between the roadway and the sidewalk in a state where each fitting step portion is connected in series on a predetermined line;
A boundary block placing step of fitting and placing one side end of the boundary block on the fitting step of the side groove block;
Therefore, if the gutter block is laid, the boundary block can be easily arranged on a predetermined line. Thereby, the operation | work at the time of constructing a gutter structure can be simplified. Even when the shape of the boundary block is changed in accordance with the state of the road to be constructed, the commonly used gutter block can be mass-produced, so that the manufacturing cost and manufacturing effort of the boundary block can be reduced.

  According to invention of Claim 2, although the cross-sectional area of the internal space of a drainage channel is different, the selection process of the multiple types of side groove block with which the upper surface opening width of the drainage channel and the shape of the fitting step part were equalized. Since at least one type of gutter block is selected from the inside, the shape of the drainage channel of the gutter block can be changed according to the condition of the road to be constructed. Further, by appropriately selecting and combining one set of boundary blocks and side groove blocks from a plurality of types of boundary blocks and side groove blocks, side groove structures corresponding to various road conditions can be easily constructed.

  According to the invention described in claim 3, since the selection step selects at least two types of gutter blocks so that the depth of the drainage channel is gradually increased toward the catchment basin, Therefore, it is possible to provide a gutter structure that smoothly drains rainwater and the like.

According to the invention of claim 4, the fitting step portion of the side groove block includes a horizontal placement surface, and a regulation surface that stands up with respect to the placement surface from the end of the placement surface on the roadway side, Have
The side surface of the boundary block on the side groove block side is inclined in a direction in which the upper end edge is located on the side opposite to the regulation surface in a state where the one end portion is placed on the placement surface,
Adopting a construction method including a joining step of filling a gap formed between the regulation surface and the inclined side surface on the side groove block side of the boundary block after the boundary block placement step. Therefore, a side groove structure in which the boundary block is firmly fixed to the side groove block can be provided. In particular, since the bonding material is formed in a wedge shape, it is possible to prevent the boundary block from being lifted or rattling.

According to the invention of claim 5, a side groove block provided with a fitting step portion that is lowered by one step from the upper surface at one side end portion in the width direction on the sidewalk side, and a drainage channel formed therein,
A boundary block placed on the fitting step of the side groove block;
With
A plurality of side groove blocks are arranged along a boundary between the roadway and the sidewalk in a state where each fitting step is connected in series on a predetermined line, and one side end of the boundary block is fitted to the fitting step of each side groove block Since the parts are fitted and placed, they can be easily arranged on a line when constructing the boundary block. Thereby, the operation | work at the time of constructing a gutter structure can be simplified.

  According to the sixth aspect of the present invention, since the reflective block is provided on the side surface of the boundary block on the roadway side, the headlight of a car or a motorcycle is reflected even in a dark place, and the position of the boundary block is indicated to the driver. It can be confirmed clearly.

  According to the seventh aspect of the present invention, the upper surface of the side groove block is provided with a warning generating surface provided with a convex portion for generating vibration by passage of the vehicle, and the warning generating surface is continuous with the road surface of the roadway. Since it is a plane, it is possible to alert the driver by the vibration that occurs when a car or motorcycle traveling on the roadway approaches the gutter block. As a result, it is possible to prevent an accident in which a car or a motorcycle collides with the boundary block. Further, in the side groove structure having the side groove block and the boundary block provided with the reflective surface material on the side surface on the roadway side, the reflective surface material can be prevented from coming into contact with the reflective surface material, and the reflective surface material can be damaged. Can be suppressed.

It is sectional drawing explaining a side groove | channel structure. It is sectional drawing to which a part of side groove structure was expanded. It is the front view which showed various embodiment of the boundary block. It is the front view which showed various embodiment of the side groove block. It is a perspective view explaining connection of two sorts of gutter blocks from which the depth of a drainage channel differs, and a drainage basin. It is a side view explaining the side groove structure which connected the 2 types of side groove block from which the depth of a drainage channel differs, and a water catchment. It is (a) front view and (b) side view of the boundary block in 2nd Embodiment. It is (a) front view and (b) top view of the gutter block in 2nd Embodiment.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view illustrating a side groove structure of the present invention. FIG. 2 is an enlarged cross-sectional view of a fitting portion between the side groove block 1 and the boundary block 2 having a side groove structure.

The side groove structure of the present embodiment includes a plurality of side groove blocks 1 arranged along the boundary between the roadway 4 and the sidewalk 5 of the road, and a boundary block 2 joined to the side groove block 1.
The side groove block 1 is an elongated concrete block formed along the road, and a U-shaped drainage channel 7 having an open upper surface is formed in the inside along the longitudinal direction of the side groove block 1. . The width of the drainage channel 7 is widened at the upper open portion of the drainage channel 7, and a stepped portion 7a is formed at the boundary where the width is widened. A metal grating 8 (a kind of lid member) that closes the upper surface opening of the drainage channel 7 is placed on the stepped portion 7a. The width of the grating 8 is aligned with the width of the upper surface opening of the drainage channel 7, and when the grating 8 is placed on the stepped portion 7 a of the drainage channel 7, the height of the upper surface is equal to the height of the upper surface of the side groove block 1. It is aligned. The grating 8 has a plurality of rainwater inlets (not shown) opened on the upper surface, and rainwater on the roadway flows into the drainage channel 7 of the side groove block 1 from these rainwater inlets. Further, in the side groove block 1 of the present embodiment, a packing 9 having a U-shaped cross section is formed on one side end face in the longitudinal direction so as to slightly protrude from the end face so as to surround the end face opening of the drainage channel 7. This packing 9 is a part which becomes a seal and connection allowance between the side groove blocks 1 connected adjacently.

  At one side end in the width direction on the sidewalk 5 side of the side groove block 1, a fitting step portion 10 is provided along the longitudinal direction that is lowered by one step from the upper surface. Specifically, the fitting step portion 10 is formed by cutting out from the side surface on the sidewalk 5 side of the upper end portion of the side groove block 1 toward the roadway 4 side, and the end portion of the boundary block 2 on the roadway 4 side is placed. The horizontal mounting surface 10a and the vertical regulating surface 10b that stands up with respect to the mounting surface 10a from the end of the mounting surface 10a on the roadway side. When the boundary block 2 is placed on the placement surface 10a, the restriction surface 10b is brought into contact with the lower end of the side surface of the boundary block 2 on the side of the roadway 4 and restricts its position. The regulating surface 10b may be slightly inclined with respect to the vertical direction so that the side groove block 1 can be easily punched.

  The boundary block 2 is a concrete block having a long and narrow rectangular parallelepiped shape that partitions the boundary between the roadway 4 and the sidewalk 5. The boundary block 2 of the present embodiment has a length that is aligned with that of the side groove block 1 and is formed in a shape in which the width gradually narrows from the lower side toward the upper side. Specifically, in a state where the boundary block 2 is placed on the side groove block 1 (mounting surface 10a), the side surface of the boundary block 2 on the roadway 4 side (side groove block 1 side) has the upper edge at the roadway 4 (regulating surface). 10b) is formed as a surface slightly inclined in the direction opposite to the side 10b). In contrast, the side of the boundary block 2 on the sidewalk 5 side is the direction in which the upper edge is located on the side opposite to the sidewalk 5. It is formed as a slightly inclined surface. In other words, it is formed as a tapered surface that widens toward the end. In addition, the upper surface of the boundary block 2 is formed as a horizontal plane, and the ends where the upper surface and the tapered side surfaces on both sides intersect are chamfered in an arc shape. This circular arc is formed by a curved surface with a constant curvature R.

  When such a boundary block 2 is fitted and placed in the fitting step portion 10 of the side groove block 1, the lower end of the side surface of the boundary block 2 on the side of the roadway 4 is in detail in a state of being in contact with the regulating surface 10 b. When placed on the mounting surface 10a, a slight wedge-shaped gap is generated between the regulating surface 10b and the side surface of the boundary block 2 on the roadway 4 side. In the present embodiment, a bonding material 12 such as cement milk is poured into the gap and filled, and the side groove block 1 and the boundary block 2 are bonded. Thereby, the boundary block 2 can be firmly fixed to the side groove block 1. In particular, since the bonding material 12 is formed in a wedge shape, the boundary block 2 can be prevented from being lifted or rattling. In addition, the sidewalk 5 of this embodiment is formed one step higher than the height of the roadway 4, and its surface is located near the center in the height direction of the boundary block 2. For this reason, the lower end portion of the boundary block 2 that is formed wider on the lower side is buried, and the boundary block 2 is further prevented from being lifted or rattling.

These boundary blocks 2 and gutter blocks 1 are used by road managers, for example, standards and road conditions (level differences between the roadway 4 and the sidewalk 5, the width of the sidewalk 5, the road traffic volume, Various forms can be selected according to the amount of rainwater flowing on the road. Specifically, the boundary block 2 is generally standardized in a plurality of types having different dimensions such as the inclination angle of the side surface and the top surface, and the height, and at least one of them is appropriately selected. To do. However, the unit length (section), for example, each type of boundary block 2 used in the side groove installed between the next intersection located next to one intersection, the positional relationship between the bottom surface and the side surface is all unified. Yes. Therefore, regardless of which boundary block 2 is selected, the positional relationship between the bottom surface and the side surface is the same, and the height from the bottom surface to the top surface is different.
Moreover, although the cross-sectional area of the internal space of the drainage channel 7 is different, the side groove block 1 is standardized in a plurality of types in which the upper surface opening width of the drainage channel 7 and the shape of the fitting step portion 10 are aligned. At least one of them is appropriately selected. However, in each type of side groove block 1, the size of the fitting step 10 (the length of the mounting surface 10a and the regulating surface 10b), the width of the upper surface exposed on the road surface of the roadway (the drainage channel 7 is sandwiched from the regulating surface 10b) The length to the opposite side edge), the opening of the drainage channel 7 and the stepped portion 7a are unified. Therefore, regardless of which side groove block 1 is selected, the width of the fitting step portion 10, the upper surface, the opening of the drainage channel 7 and the stepped portion 7a are the same, and the cross-sectional area of the drainage channel 7 is different.

  For example, FIG. 3 shows various embodiments of the boundary block 2, and FIG. 4 shows various embodiments of the gutter block 1. In FIG. 3, the side groove block 1 and the like are indicated by broken lines, and in FIG. 4, the boundary block 2 is indicated by broken lines.

  In the boundary block 2a shown in FIG. 3A, the height of the upper surface is set lower than that of the standard type boundary block 2 shown in FIG. 1, and the inclination angles of the side surfaces on both sides are the same as the boundary block 2 shown in FIG. It is aligned. In the boundary block 2b shown in FIG. 3B, the height of the upper surface is set lower than that of the boundary block 2 shown in FIG. 1, and the width in the lateral direction is narrower than that of the boundary block 2 shown in FIG. The angle of inclination of the side surfaces on both sides is set to the boundary block 2 shown in FIG. The boundary block 2c shown in FIG. 3C has the height of the upper surface and the inclination angle of the side surface on the side groove block 1 side (the roadway 4 side) aligned with the boundary block 2 shown in FIG. The side of the opposite side (the sidewalk 5 side) is formed perpendicular to the upper surface. The boundary block 2d shown in FIG. 3D is obtained by setting the height of the boundary block 2c shown in FIG. These boundary blocks 2a to 2d shown in FIGS. 3 (a) to 3 (d) are, for example, when the height of the boundary block 2 is changed in accordance with a standard designated by each local government, or when the height of the roadway 4 and the sidewalk 5 is high or low. It is appropriately selected when there is a difference.

  The boundary block 2 shown in FIGS. 3 (e) and 3 (f) is mainly used as a part of the boundary block 2 provided in a plurality of rows, and a part where a pedestrian, a vehicle, or the like passes between the roadway 4 and the sidewalk 5. Used for. In the boundary block 2e shown in FIG. 3 (e), the height of the upper surface is aligned with the height of the upper surface of the side groove block 1. In other words, the height of the boundary block 2e is aligned with the height of the regulation surface 10b of the fitting step portion 10. For example, the boundary block 2 e is installed at a portion corresponding to a pedestrian crossing in which the height of the sidewalk 5 is aligned with the height of the roadway 4. Thereby, it is possible to prevent a pedestrian who tries to cross the pedestrian crossing from tripping. The upper surface of the boundary block 2f shown in FIG. 3F is gently inclined upward from the side groove block 1 side (the roadway 4 side) toward the opposite side (the sidewalk 5 side). Further, the upper surface on the side groove block 1 side is aligned at substantially the same height as the upper surface of the side groove. This boundary block 2 is installed, for example, at the entrance of a parking lot that is slightly higher than the height of the roadway 4 and that is provided on the opposite side of the roadway 4 across the sidewalk 5. Thereby, the vehicle which crosses the sidewalk 5 from the roadway 4 and enters a parking lot can be smoothly passed.

  The side groove block 1a shown in FIG. 4 (a) has a width in the short side direction, an upper surface opening width of the drainage channel 7, a shape of the stepped portion 7a of the drainage channel 7, and a shape of the fitting step portion 10 (the upper surface of the mounting surface 10a). 1 and the position of the regulating surface 10b in the width direction) are aligned with the standard type side groove block 1 shown in FIG. 1, and the depth of the drainage channel 7 is set deeper than that of the side groove block 1 shown in FIG. ing. Further, as the depth of the drainage channel 7 is increased, the height of the side groove block 1 is set higher than that of the side groove block 1 shown in FIG. 1, and the length of the straight portion of the packing 9 having a U-shaped cross section is set. It is set longer than the side groove block 1 shown in FIG. The side groove block 1b shown in FIG. 4B is a side groove block whose width in the short side direction, upper surface opening width of the drainage channel 7, shape of the stepped portion 7a of the drainage channel 7, and shape of the fitting step portion 10 are shown in FIG. 1, the depth of the drainage channel 7 is set deeper than that of the side groove block 1 shown in FIG. 1, and the width of the drainage channel 7 is set wider than that of the side groove block 1 shown in FIG. That is, the cross-sectional area of the internal space of the drainage channel 7 is set wider than that of the side groove block 1 shown in FIG. Specifically, the drainage channel 7 is formed in the shape of a parabola in cross section, and a stepped portion 7a on which the grating 8 is placed protrudes inwardly on the top. Accordingly, the packing 9 is formed in a parabolic cross section. These gutter blocks 1a and 1b shown in FIGS. 4A and 4B are installed on a road with a large amount of drainage, such as a road in a region with a large amount of rain. Moreover, by installing the side groove block 1 having a shallow drainage channel 7 on the upstream side and installing the side groove block 1a having a deep drainage channel 7 on the downstream side, it is possible to smoothly flow rainwater and the like from upstream to downstream. Can be drained.

  For example, in the side groove structure shown in FIGS. 5 and 6, different types of side groove blocks 1 c and 1 d are connected and arranged so that the depth of the drainage channel 7 gradually increases toward the catchment basin 14. Yes. Specifically, the first side groove block 1c (for example, the side groove block 1 shown in FIG. 1) in which the depth of the drainage channel 7 is shallow is disposed on the upstream side, and the downstream side, that is, the first side groove block 1c and the water collection. A second side groove block 1d (for example, a side groove block 1a shown in FIG. 4A) having a large depth is arranged between the flanges 14. In this embodiment, the side groove blocks 1c and 1d and the side surface of the drainage basin 14 on the side of the roadway 4 are aligned to be the same surface. 5 and 6, the first side groove block 1c and the second side groove block 1d are arranged one by one, but the present invention is not limited to this. For example, a plurality of first side groove blocks 1c can be connected and arranged on the upstream side, and a plurality of second side groove blocks 1d can be connected and arranged on the downstream side. Further, two or more kinds of side groove blocks having different depths may be connected to each other so that the depth of the drainage channel 7 increases stepwise toward the water collecting basin 14.

  As shown in FIGS. 5 and 6, the water collecting basin 14 of the present embodiment is a rectangular parallelepiped concrete box wider than the side groove block 1, and a water collecting channel 15 that collects rainwater and the like provided therein. On the side surface of the catchment basin 14 where the second side groove block 1d is connected, a communication port 16 for communicating the upper part of the catchment channel 15 with the drainage channel 7 of the second side groove block 1d, On the upper surface, a lid arrangement space 17 that opens along the drainage channel 7 of the side groove blocks 1c, 1d, a drainage port 18 connected to a circular water pipe or the like at the lower part of the water collection channel 15, and a sidewalk of the water collecting basin 14 On the upper surface on the 5th side, there is provided a water catchment fitting step portion 19 in which the boundary block 2 is disposed. The depth of the communication port 16 is set to be the same as or deeper than the depth of the drainage channel 7 of the second side groove block 1d. Thereby, the rainwater etc. which flowed from the drainage channel 7 of the 2nd ditch | groove block 1d can be taken in into the inside of the water collection channel 15 smoothly. The lid arrangement space 17 opened on the upper surface has a stepped portion 17a aligned with the upper surface opening width and the shape of the stepped portion 7a in the drainage channel 7 of the side groove blocks 1c, 1d. It communicates with the upper end. For this reason, the same kind of grating 8 as the grating 8 used for the side groove blocks 1c and 1d can be used, and rainwater or the like can be directly taken into the water collecting channel 15 through the rainwater inlet of the grating 8. Furthermore, the catchment fitting step portion 19 is formed one step down from the upper surface along the longitudinal direction of the side groove blocks 1c, 1d, and is aligned with the step shape of the fitting step portion 10 of the side groove blocks 1c, 1d. Yes.

  Then, as shown in FIGS. 5 and 6, the first side groove block 1c, the second side groove block 1d, and the water collecting basin 14 are connected with the height of the upper surface and the position of the side surface on the roadway 4 side aligned. By doing so, the shape of the stepped portion 7a of the drainage channel 7 of each side groove block 1c, 1d and the stepped portion 17a of the lid arrangement space 17 of the drainage basin 14 are aligned along these connecting directions, and the side groove block 1c, The step shapes of the fitting step 10 of 1d and the catchment fitting step 19 of the catchment 14 are aligned. For this reason, the drainage channel 7 of the 1st side groove block 1c, the drainage channel 7 of the 2nd side groove block 1d, and the grating 8 each mounted in the lid | cover arrangement | positioning space 17 of the catchment basin 14 can be made the same. In addition, the boundary blocks placed on the fitting step 10 of the first side groove block 1c, the fitting step 10 of the second side groove block 1d, and the catchment fitting step 19 of the catchment 14, respectively. 2 can be the same. Note that the grating 8 and the boundary block 2 are arranged over a connecting portion between the first side groove block 1c and the second side groove block 1d or a connecting portion between the second side groove block 1d and the catchment basin 14. May be. Moreover, as shown in FIG. 6, it is desirable that the bottom surface of the first side groove block 1c be positioned below the bottom surface of the drainage channel 7 of the second side groove block 1d. If it does in this way, in the drainage channel 7 of the 2nd side groove block 1d, it can prevent that a clearance gap arises in the connection part of the 1st side channel block 1c and the 2nd side channel block 1d, rain water in the drainage channel 7, etc. Can be prevented from leaking into the roadbed 21 of the road from the gap between the connecting portions.

  Next, a method of constructing the side groove structure including the side groove block 1 and the boundary block 2 as described above will be described with reference to FIG. First, the side groove block 1 and the boundary block 2 are selected according to the state of the road on which the side groove structure is to be laid (selection step). Specifically, at least one boundary block 2 is selected from a plurality of types of boundary blocks 2 having different inclination angles and heights of the side surface and the upper surface. Moreover, although the cross-sectional area of the interior space of the drainage channel 7 is different, at least one side groove block 1 is selected from a plurality of types of the side channel blocks 1 in which the upper surface opening width of the drainage channel 7 and the shape of the fitting step portion 10 are aligned. Select the type. As shown in FIGS. 5 and 6, in the side groove structure connected to the catchment basin 14, at least two kinds of the side groove blocks 1 are formed so that the depth of the drainage channel 7 gradually increases toward the catchment basin 14. Select.

  Next, each side groove block 1 is arranged on the roadway 4 in a state where the fitting step portions 10 are connected in series (side groove block construction process). If it demonstrates in detail, the groove | channel according to the height and the width | variety of the side groove block 1 to embed will be dug in the roadbed 21 of the location which embeds the side groove block 1 first. After the base layer or the base layer is formed so that the bottom of the groove is horizontal, each side groove block 1 is arranged. At this time, the adjustment is performed so that the side groove blocks 1 are arranged in a straight line. For example, a thread is stretched at the start point and the end point of the place where the side groove block 1 is provided continuously, and the side groove is arranged along a straight line along the thread. Adjacent gutter blocks 1 are fixed with a coupling tool (not shown). And after filling so that there may be no gap between the roadbed 21 on the roadway 4 side and the side groove block 1, a pavement layer such as asphalt on the roadbed 21 so that the upper surface of the side groove block 1 and the surface of the roadway 4 are aligned. 22 is constructed. On the other hand, on the sidewalk 5 side, after filling up so that there is no gap between the roadbed 21 and the side groove block 1 on the sidewalk 5, the height of the surface of the roadbed 21 is set to the placement surface 10a of the fitting step portion 10. Keep it at the same height.

  And one side edge part of the boundary block 2 is fitted and mounted in the fitting step part 10 of the side groove block 1 (boundary block mounting process). That is, the lower end of the side surface of the boundary block 2 on the side of the roadway 4 is placed on the placement surface 10 a and the roadbed 21 in a state where the lower end of the side surface on the roadway 4 side is in contact with the regulation surface 10 b of the fitting step portion 10. Then, the sidewalk 5 side of the boundary block 2 is filled with the roadbed 21, and a pavement layer 22 such as asphalt is constructed on the roadbed 21. Note that the surface of the sidewalk 5 of this embodiment is located near the center of the boundary block 2 in the height direction. Further, in the boundary block 2 of the present embodiment, the side surface on the side groove block 1 side is inclined in the direction in which the upper end edge is located on the side opposite to the regulating surface 10b. Therefore, a wedge-shaped (triangular) gap is formed between the regulating surface 10b of the side groove block 1 and the side surface of the boundary block 2 on the side groove block 1 side. The gap is filled with a bonding material 12 such as concrete (bonding step). Thereby, the boundary block 2 and the gutter block 1 are firmly joined.

  As described above, since the fitting step portion 10 common to the various side groove blocks 1 is provided, and one end portion of the boundary block 2 is fitted and placed on the fitting step portion 10, the boundary block 2 can be easily aligned. Thereby, the operation | work at the time of constructing a gutter structure can be simplified. Further, even when the shape of the boundary block 2 is changed in accordance with the state of the road to be constructed, the commonly used gutter block 1 can be mass-produced, so that the manufacturing cost and manufacturing labor of the boundary block 2 can be reduced. .

  Furthermore, although the cross-sectional area of the internal space of the drainage channel 7 is different, at least one type of the side channel block 1 is selected from the plurality of types of side channel blocks 1 in which the upper surface opening width of the drainage channel 7 and the shape of the fitting step portion 10 are aligned. Therefore, the shape of the drainage channel 7 of the gutter block 1 can be changed according to the state of the road to be constructed. In particular, by selecting at least two types of gutter blocks 1 so that the depth of the drainage channel 7 gradually increases toward the catchment basin 14, rainwater and the like are smoothly drained toward the catchment basin 14. A side groove structure can be provided. Then, by appropriately selecting and combining one set of boundary block 2 and side groove block 1 from a plurality of types of boundary blocks 2 and side groove blocks 1, side groove structures corresponding to various road conditions can be easily constructed. be able to. Further, since the bonding material 12 is filled between the regulation surface 10b of the side groove block 1 and the side surface of the boundary block 2, a side groove structure in which the boundary block 2 is firmly fixed to the side groove block 1 can be provided. In addition, since the bonding material 12 is formed in a wedge shape, the boundary block 2 can be prevented from being lifted or rattling.

  By the way, the boundary block and the side groove block are not limited to the above-described embodiments. 7 and 8 show the boundary block 2 'and the side groove block 1' in the second embodiment. As shown in FIG. 7, the boundary block 2 ′ in the second embodiment includes a reflecting plate 24 (corresponding to the reflecting surface material in the present invention) on the side surface on the side of the roadway 4. The reflection plate 24 of the present embodiment is formed in an elongated rectangular shape over the longitudinal direction of the boundary block 2 ′. Moreover, the lower end of the reflecting plate 24 has a height from the lower end of the boundary block 2 ′ higher than the height of the regulation surface 10 b of the fitting step portion 10 so as not to interfere with the fitting step portion 10 of the side groove block 1. Is set to The boundary block 2 ′ having such a reflector 24 can be formed by placing the reflector 24 in a mold in advance when the boundary block 2 ′ is molded. Alternatively, the reflector 24 may be attached after the body of the boundary block is molded.

  As described above, since the reflecting plate 24 is provided on the side surface of the boundary block 2 ′ on the side of the roadway 4, the light of the headlight of a car or a motorcycle is reflected even in a dark place, and the position of the boundary block 2 ′ is indicated to the driver. The reflector 24 can be seen clearly as a continuous line or a dotted line along the connection direction of the boundary block 2 ', so that the driver's consciousness is naturally reflected in the extending direction of the road by the reflected light. This leads to an effect of preventing the meandering operation and easily performing the safe driving. In addition, since the construction method of the gutter structure provided with boundary block 2 'of this embodiment is the same as that of above-described embodiment, description is abbreviate | omitted. Moreover, the shape of boundary block 2 'can change the inclination angle and height of a side surface and an upper surface according to the state of a road similarly to above-mentioned embodiment.

  As shown in FIG. 8, the side groove block 1 ′ in the second embodiment is provided with a warning generation surface 26 provided with a convex portion 25 for generating vibration when the vehicle passes through on the upper surface thereof. Specifically, the warning generation surface 26 is provided on the upper surface on the side of the roadway 4 across the drainage channel 7 of the side groove block 1 ′ and constitutes a part of the roadway 4. Moreover, the width | variety of the warning generation surface 26 is formed wider than the width | variety of the upper surface at the sidewalk 5 side which pinched | interposed the drainage channel 7 of the side groove block 1 '. On the surface of the warning generation surface 26, a plurality of stripe protrusions 25 extending in a direction perpendicular to the direction in which the side groove blocks 1 'are provided are arranged in parallel along the direction in which the side groove blocks 1' are provided. ing. In addition, you may provide this convex part 25 in the upper surface at the sidewalk 5 side which pinched | interposed the drainage channel 7 of gutter block 1 '. In this case, the upper surface on the sidewalk 5 side across the drainage channel 7 of the side groove block 1 ′ also becomes the warning generation surface 26.

  As described above, the warning generating surface 26 provided with the convex portion 25 for generating vibration by the passage of the vehicle is provided on the upper surface of the side groove block 1 ′, and the warning generating surface 26 is made a part of the roadway 4. When a car or a motorcycle traveling on the roadway 4 approaches the gutter block 1 ′, the driver can be alerted. Thereby, an accident in which a car, a motorcycle, or the like collides with the boundary block 2 can be prevented. Further, in the side groove structure having the side groove block 1 ′ and the boundary block 2 ′ having the reflecting plate 24 on the side surface on the side of the roadway 4, it is possible to prevent a vehicle, a motorcycle, or the like from coming into contact with the reflecting plate 24. Can be prevented from being damaged. In addition, since the construction method of the side groove structure provided with side groove block 1 'of this embodiment is the same as that of above-described embodiment, description is abbreviate | omitted. Further, the shape of the side groove block 1 ′ can change the cross-sectional area of the internal space of the drainage channel 7 in accordance with the state of the road, as in the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 Side groove block 2 Boundary block 4 Roadway 5 Sidewalk 7 Drainage channel 7a Step part 8 Grating 9 Packing 10 Fitting step part 10a Mounting surface 10b Control surface 12 Joining material 14 Catchment port 15 Communication channel 17 Communication port 17 Cover arrangement space 17a Stepped portion 18 Drainage groove 19 Catchment fitting stepped portion 21 Subbase 22 Pavement layer 24 Reflector 25 Convex portion 26 Warning occurrence surface

Claims (7)

A side groove block in which a fitting step portion that is one step down from the upper surface is provided at one side end portion in the width direction on the sidewalk side, and a drainage channel is formed inside,
A boundary block placed on the fitting step of the side groove block;
A method for constructing a gutter structure with
A selection step of selecting at least one kind of boundary block from a plurality of kinds of boundary blocks having different inclination angles of the side surface and the upper surface and different heights;
A side groove block construction step for arranging a plurality of side groove blocks along a boundary between the roadway and the sidewalk in a state where each fitting step portion is connected in series on a predetermined line;
A boundary block placing step of fitting and placing one side end of the boundary block on the fitting step of the side groove block;
The construction method of the gutter structure characterized by including.   In the selection step, although the cross-sectional area of the internal space of the drainage channel is different, at least one type of side groove block is selected from a plurality of types of side channel blocks in which the upper surface opening width of the drainage channel and the shape of the fitting step portion are aligned. The construction method of the side groove structure according to claim 1, wherein:   The method for constructing a gutter structure according to claim 2, wherein the selecting step selects at least two types of gutter blocks so that the depth of the drainage channel is gradually increased toward the catchment basin. The fitting step portion of the side groove block has a horizontal placement surface, and a regulation surface rising from the end of the placement surface on the roadway side with respect to the placement surface,
The side surface of the boundary block on the side groove block side is inclined in a direction in which the upper end edge is located on the side opposite to the regulation surface in a state where the one end portion is placed on the placement surface,
The method further comprises a joining step of filling a gap formed between the regulating surface and the inclined side surface on the side groove block side of the boundary block with a joining material after the boundary block placing step. The construction method of the gutter structure in any one of Claim 3. A side groove block in which a fitting step portion that is one step down from the upper surface is provided at one side end portion in the width direction on the sidewalk side, and a drainage channel is formed inside,
A boundary block placed on the fitting step of the side groove block;
With
A plurality of side groove blocks are arranged along a boundary between the roadway and the sidewalk in a state where each fitting step is connected in series on a predetermined line, and one side end of the boundary block is fitted to the fitting step of each side groove block A side groove structure characterized in that the parts are fitted and placed.   The side groove structure according to claim 5, wherein a reflective surface material is provided on a side surface of the boundary block on the roadway side. On the upper surface of the side groove block on the roadway side is provided with a warning generating surface provided with a convex portion for generating vibration by passage of the vehicle,
The side groove structure according to claim 5 or 6, wherein the warning generation surface is a surface continuous with a road surface of a roadway.

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