WO2012090596A1 - Gutter block, drainage installation using same, and method for burying cables underground - Google Patents

Abstract

The present invention provides an easy-maintenance gutter block (1) able to easily accommodate the laying, addition, or replacement of cables (5). Specifically, the present invention relates to a gutter block (1) which functions concomitantly as a common tunnel for electrical wires that is able to accommodate cables (5), and as a gutter for the drainage of water. The gutter block (1) includes a block unit (11) which is open on the top end and which has integrated left and right side walls (14, 14) and a bottom wall (15) connected to the bottom edges of the side walls, and a middle bottom member (bottom plate member (12)) which is detachably installable within the block unit (11) and which, when installed, partitions the internal cross-sectional space of the block unit (11) into a drainage space (17) to the upper side and a cable accommodating space (38) to the lower side.

Description

Side groove block, drainage equipment using the same, and method of undergrounding cables

The present invention relates to a side groove block having both a function as an electric wire common groove capable of storing cables together and a function as a side groove for drainage, a drainage facility having the function, and a method of constructing the side groove block.

By burying various cables such as distribution lines, telephone lines and optical fibers in the ground, securing emergency transport roads in the event of a disaster, smooth firefighting activities, creating a strong city in times of disaster such as typhoons and earthquakes, and advanced information For example, it is possible to stably supply power to the mobile phone and improve communication reliability.
Therefore, especially in urban areas, in order to form a functional road space and realize a beautiful cityscape, the cables are stored together in a common cable groove (C, C, BOX) embedded in the sidewalk. It is being promoted to make it non-electric pole.

The electric wire common groove is preferably installed along the public-private boundary portion of the sidewalk in order to shorten the cable drawing distance to the house as much as possible.
However, there are many side gutter blocks that allow rainwater from roads and houses to flow into the sewage at the public-private boundary of the sidewalk. May overlap.

Accordingly, a side groove block having both a function as a common wire groove for storing cables together and a function as a side groove for drainage (hereinafter sometimes referred to as “hybrid side groove block”) has been proposed. Yes.
Conventionally, there are two types of this hybrid-type side groove block. Of these, the first type includes a block main body having a substantially U-shaped cross-section with the upper part opened and a lid member that closes the upper opening part, and penetrates the side wall of the block main body in the longitudinal direction. Cables are accommodated in the through holes (see Patent Documents 1 and 2).

The second type includes a block body having a substantially U-shaped cross-section with the upper part opened and a lid member that closes the upper opening part, and holds cables on the inner surface of the side wall part of the block body. In addition to protruding members, a drainage channel for sewage is formed at the bottom of the block body (see Patent Document 3).

JP 2003-147846 A JP 2008-215053 A Japanese Patent No. 2523083

Among the conventional hybrid-type side groove blocks, in the first type, a storage space for cables is formed by a through hole penetrating the side wall of the block body in the longitudinal direction. Cannot be made too large. Therefore, since it is necessary to route the cables through the relatively small through holes, there is a disadvantage that it takes time to install the cables.
In particular, in the case of Patent Document 2, since the working groove for taking in and out the cables is open on the outer surface of the block body, when the cables are added or replaced after the block body is buried. In order to expose the working groove to the outside, it is necessary to dig up the ground on the side thereof, and the construction becomes complicated.

On the other hand, in the second type, since the cables are held by the holding member protruding from the inner surface of the side wall portion of the block main body, the addition or replacement of the cables can be easily performed.
However, in the second type, the holding member protrudes from the inner surface of the side wall portion, and the drainage channel of the sewage is formed at the bottom portion of the block body, so that the cables are obstructed and cleaned at the bottom portion of the block body. There are drawbacks that it is difficult to enter and that maintenance such as cleaning to remove sludge is difficult to perform.

The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a side groove block that can easily cope with the laying, addition, or replacement of cables and that can be easily maintained.

(1) The side groove block of the present invention is a side groove block having both a function as an electric wire common groove capable of storing cables together and a function as a side groove for drainage, and the left and right side walls and the lower end thereof. A block main body that has a bottom wall portion that connects each other and that is open at the top, and can be detachably attached to the inside of the block main body. And an insole member for dividing the space into a storage space for the cables on the lower side.

According to the side groove block of the present invention, since the lower side of the internal space of the block body is a storage space for cables, the cross section of the storage space is reduced compared to the case where the storage space is provided by a through hole that penetrates the side wall portion. A large amount can be secured, and the work of laying cables in the storage space becomes easier.
Also, by removing the insole member from the inside of the block body, the storage space for the cables can be opened, so there is no need to dug the ground on the side of the block body when adding or replacing the cables. It is possible to easily cope with the addition or exchange of classes.

Furthermore, according to the side groove block of the present invention, the insole member mounted inside the block main body divides the inner cross section of the block main body into an upper drainage space and a lower storage space for cables. There are no cables in the drainage space.
For this reason, when cleaning the drainage space (drainage channel), the cables do not get in the way, and maintenance work such as cleaning for removing sludge can be easily performed.

(2) In the gutter block of the present invention, when the midsole member is held in the midway in the vertical direction in the block body, for example, the midsole member is supported by a bracket attached to the inner surface of the side wall portion of the block body. In this case, however, the manufacturing cost increases due to the material cost of the bracket and the labor for placing the bracket.
In view of this, it is preferable that stepped portions for supporting the left and right edge portions of the midsole member are integrally extended along the longitudinal direction of the block main body on the inner surface of the side wall portion of the block main body. In this case, since the insole member can be held on the upper side of the inner cross section of the block main body without providing the bracket or the like, the manufacturing cost can be reduced.

(3) Further, in the case where the step portion is formed on the inner surface of the side wall portion of the block body, a seal member that seals between the edge portion of the midsole member and the inner surface of the step portion or the side wall portion in a watertight manner may be provided. Thus, it is possible to prevent water leakage from the drainage channel formed by the inner bottom member to the lower storage space.
For this reason, it can suppress that storage space is obstruct | occluded by the water leak from a drainage channel, or earth and sand inflow.
(4) For the same reason, it is preferable that the side groove block of the present invention further includes a connecting member for watertightly connecting the drainage direction end portions of the midsole member.

(5) In the lateral groove block of the present invention, specifically, any one of the following (a) to (d) can be adopted as the insole member.
(A) Bottom plate member that can be installed in the middle in the vertical direction of the side wall of the block body (b) Water channel member that can be installed in the middle in the vertical direction of the side wall of the block main body (c) Hook in the upper end opening of the block main body (D) An open section with a lower opening shape that can store cables therein, and a top plate that forms the bottom surface of the drainage space when stored in the bottom of the block body Cover member having

(6) As described above, the side groove block of the present invention has a two-stage structure in which a drainage space (drainage channel) is formed in the upper section of the block body and a storage space is formed in the lower section.
As an example of a layout in the case of connecting a catchment basin or a cable culvert to a side groove section composed of such a two-stage structure of a side groove block, for example, a water basin is arranged on the extension of the side groove section, It is also possible to employ a layout (see FIG. 10) that is offset from the center of the road.

However, in the layout described above, it is necessary to lay the cables around the outside of the gutter block in the section where the catchment basin or the cable basin is installed. In this case, the cable laying operation becomes complicated in that the side groove block must be drilled.
Therefore, as a drainage facility using the side groove block of the present invention, the direction of drainage is changed to the center of the road, but the “change block” having the function of allowing the cables to pass through as they are on the extension of the side groove section. It is preferable to employ an installed one.

That is, the drainage system of the present invention is connected to the side groove block so as to be located on the extension of the side groove section and the side groove section composed of a plurality of side groove blocks according to the present invention continuously embedded in the longitudinal direction of the road. One or a plurality of change blocks, wherein the change block communicates with the drainage space and changes the direction of drainage toward the center of the road, communicates with the storage space and the cable. And a lower space through which the material can pass without being bent.

(7) According to the drainage facility of the present invention, the change block located on the extension of the gutter section has an upper space that communicates with the drainage channel of the gutter block and changes its drain direction to the center of the road. A drainage basin for collecting drainage from the upper space can be arranged at a position offset toward the center of the road in the ditch section.
In this case, since the storage space of the side groove block is not divided by the water collecting basin, it is not necessary to bypass the cables to the outside of the side groove block in the installation section of the water collecting basin, and the installation work of the cables becomes easy.

(8) Further, according to the drainage facility of the present invention, the change block located on the extension of the side groove section communicates with the storage space of the side groove block and allows the lower space to pass through without bending the cables. Therefore, the cable rod communicating with the lower space can be arranged on the extension of the side groove section.
In this case, the cables in the side groove block can be extended to the cable cage without bending through the lower space of the change block, so there is no need to bypass the cables outside the side groove block in the installation section of the cable cage, Cable laying work becomes easy.

(9) The construction method of the present invention is an underground conversion method for cables using the side groove block of the present invention, and includes the following steps (a1) to (c1).
(A1) Step of newly burying the block body so that the upper end coincides with the road surface (b1) Step of storing the cables in the bottom of the block body (c1) The midsole member in the block body The process of attaching

In this underground chemical construction method, it is assumed that undergrounding is performed when the block main body of the lateral groove block of the present invention is newly installed at a construction site.
In this case, after the new burying operation of the block body (step (a1)) is completed, the cables are stored (step (b1)) and the insole member is placed inside the embedded block body. Mounting (step (c1)) is performed in order.

(10) Further, another construction method of the present invention is an underground cable construction method for cables using the side groove block of the present invention, and includes the following steps (a2) to (c2).
(A2) A step of removing the midsole member from the existing block body that is used as a side groove for drainage in a state where the midsole member is mounted. (B2) The cables are housed in the bottom of the block body. Step (c2) Step of mounting the insole member in the block body

In this underground chemical method, it is assumed that the side groove block of the present invention has already been used as a side groove for drainage in a state where an insole member is mounted.
In this case, after the work of removing the insole member from the existing block main body (step (a2)) is completed, the cables are stored (step (b2)) and the middle of the existing block main body. The mounting of the bottom member (step (c2)) is performed in order.

(11) Still another construction method of the present invention is an underground cable construction method using the gutter block of the present invention, and includes the following steps (a3) to (b3).
(A3) A step of storing cables in the bottom of the existing block main body that is used as a side groove for drainage in a state where the insole member is not mounted (b3) The midsole member in the block main body The process of attaching

In this underground chemical method, it is assumed that the side groove block of the present invention is already used as a side groove for drainage in a state in which no insole member is attached.
In this case, since there is no need to remove the insole member from the existing block body, the cables are stored (step (a3)) and the insole member is attached (step (b3) to the inside of the existing block body. )) And are performed in order.

As described above, according to the gutter block of the present invention, it is possible to easily cope with the laying, addition or replacement of cables, and it is possible to easily perform maintenance work such as cleaning for removing sludge from the drainage channel.

It is a perspective view which shows an example of the drainage equipment using the side groove block which concerns on embodiment of this invention. (A) is a perspective view of a gutter block, (b) is the cross-sectional view. (A) is a plan view of the bottom plate member, (b) is a side view thereof, (c) is a bottom view thereof, and (d) is a front view thereof. It is explanatory drawing which shows an example of the edge part connection method of a baseplate member. It is explanatory drawing which shows the construction procedure of the underground chemical construction method of cables. It is explanatory drawing which shows another construction procedure of the underground chemical construction method of cables. It is explanatory drawing which shows another construction procedure of the underground chemical construction method of cables. (A) is a plan view of the change block and the catchment basin, (b) is a perspective view of the direction change member, (c) is a longitudinal sectional view of the catchment basin, (d) is a cross section of the change block and the catchment basin FIG. It is a top view of the example of composition of a collar part section using a change block and a catchment basin, (a) shows the case where there is a cable fence, and (b) shows the case where there is no cable fence. It is a top view which shows the modification of a buttocks area. It is a perspective view of the side groove block for showing the modification of a lid member. It is a cross-sectional view showing a modification of the side groove block. (A) is a perspective view which shows the other modification of a gutter block, (b) is the cross-sectional view.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Overall configuration of drainage equipment]
FIG. 1 is a perspective view showing an example of a drainage facility using a gutter block 1 according to an embodiment of the present invention.
As shown in FIG. 1, this drainage facility includes a side groove section 3 in which a side groove block 1 is continuously embedded along the longitudinal direction A of the road 2, and a buttock section interposed between the side groove sections 3. 4 is provided.

The side groove block 1 of the present embodiment has both a function as an electric wire common groove capable of storing cables 5 together and a function as a side groove for drainage, and is along the longitudinal direction A of the road 2. A plurality of burials are continuously embedded on the left and right sides of the road.
A road 2 shown in FIG. 1 is a small paved road having a relatively small width and having a merging sewer pipe 6 in the center in the transverse direction. Therefore, each side groove block 1 installed on the side of the road is arranged in a state where the outer edge in the width direction of the side groove block 1 coincides with the public-private boundary line B in order to shorten the drawing distance of the cable 5A to the house 7 as much as possible. ing.

As shown in FIG. 1, the cables 5 housed in the gutter block 1 include various cables (for example, low-voltage or high-voltage power lines, telephone lines, optical fibers, etc.) that serve as lifelines for residents of the house 7. Communication line) 5A.
However, when there is a margin in the size of the storage space 18 to be described later, the cables 5 can include water and sewage piping and gas piping, and can also be stored alone. In addition, the “cables” referred to in this specification is used not only to describe each cable 5A itself, but also to include the protective tube 5B when the cable 5A is inserted through the protective tube 5B. is doing.

In the example of FIG. 1, a “communication trunk line” protective tube 5B is accommodated in the side groove block 1 of the left side groove section 3, and a “high voltage power line” protective tube 5B is disposed in the side groove block 1 of the right side groove section 3. It is stored.

[Configuration of side groove block]
2A is a perspective view of the side groove block, and FIG. 2B is a cross-sectional view thereof.
As shown in FIG. 2, the side groove block 1 of the present embodiment includes a block main body 11 having a cross section of an open channel, a bottom plate member 12 formed in a substantially flat plate shape, and a lid member that closes an upper open portion of the block main body 11. 13.
Among these, the block main body 11 is made of precast concrete, and has a right and left side wall part 14 and a bottom wall part 15 that connects the lower end parts thereof, and a concrete block having a substantially U-shaped cross section with the upper part opened. Consists of the body.

The block body 11 of the present embodiment has a rectangular cross section whose cross section height is larger than the cross section width, the cross section width is set in the range of 300 to 600 mm, and the cross section height is in the range of 450 to 850 mm. Is set to
The length of the block body 11 is set in the range of 1000 to 4000 mm, and the length of the lid member 13 is generally about 500 mm. However, the length of the block body 11 is not particularly limited. Further, the length of the bottom plate member 12 is preferably about 1000 mm because it can be constructed manually, but this can also be set regardless of the length of the block body 11.

Each side wall portion 14 of the block body 11 has a flat outer surface, but a step portion 16 is formed at a substantially central portion in the vertical direction of the inner surface (see FIG. 2A). The step portion 16 extends along the longitudinal direction of the block main body 11, so that the cross-sectional thickness of the upper half portion of the side wall portion 14 is slightly smaller than the cross-sectional thickness of the lower half portion thereof. ing.
Of the inner cross section of the block body 11 surrounded by the side wall portions 14 and the bottom wall portion 15, the upper portion above the step portion 16 is a drainage space (drainage channel) 17. A lower lower portion serves as a storage space 18 for the cables 5.

Further, on the inner surfaces of the side wall portions 14 of the block main body 11, lid hooking ribs 19 that support both edges in the width direction of the lid member 13 are extended along the longitudinal direction of the block main body 11.
The lid hooking rib 19 is interrupted at a predetermined position in the longitudinal direction of the block main body 11, and a notch (not shown) at the interrupted position is a hooking tool 21 (used when the bottom plate member 12 is mounted. This is the escape portion of FIG.

3 (a) is a plan view of the bottom plate member, FIG. 3 (b) is a side view thereof, FIG. 3 (c) is a bottom view thereof, and FIG. 3 (d) is a front view thereof.
The bottom plate member 12 of the present embodiment is an example of an “inner bottom member” for forming the bottom surface of the drainage channel 17, and as shown in FIG. 3, is substantially made of resin concrete (other concrete or It may be made of metal.). In addition, the surface of the baseplate member 12 is good also as an inclined surface which becomes so low that it goes to the width direction center part.

The bottom plate member 12 has connection margins 22 formed by thinly cutting the surface serving as the bottom surface of the drainage channel 17 at both longitudinal ends. In addition, positioning protrusions 23 that extend in the longitudinal direction are engaged with the stepped portion 16 to prevent positional displacement in the width direction on the back side of the width direction both ends of the bottom plate member 12.
The width dimension of the bottom plate member 12 is set to a dimension that is smaller than the opening width of the block body 11 but larger than the interval in the width direction between the left and right step portions 16.

For this reason, for example, as shown in FIG. 2 (b), the other end edge of the bottom plate member 12 is attached to the other end edge with the other end edge in a state where the one end edge in the width direction is placed on one stepped portion 16. By gradually placing it on the other stepped portion 16, the bottom plate member 12 can be attached to the midway portion in the vertical direction of the inner hollow section of the block body 11.
When the bottom plate member 12 is thus mounted, the drainage channel 17 is formed above the bottom plate member 12 in the inner cross section of the block main body 11, and the storage space 18 for the cables 5 is secured in the lower portion. It will be.

As shown in FIG. 2A, a rubber seal member 24 that is in contact with the back surface of the edge portion of the bottom plate member 12 is attached to the upper surface of the step portion 16, and the bottom plate member 12 is attached by this seal member 24. Water leakage from the drainage channel 17 formed on the upper surface to the storage space 18 below is prevented.
The seal member 24 may be attached to the lower surface of the bottom plate member 12 instead of the upper surface of the step portion 16. Further, by attaching the seal member 24 to both edge surfaces (cut end surfaces) of the bottom plate member 12 in the width direction, water is stopped between the edge portion of the bottom plate member 12 and the wall portion immediately above the step portion 16 in the side wall portion 14. May be.

FIG. 4 is an explanatory view showing an example of an end portion connection method of the bottom plate member 12.
As described above, since the connecting margins 22 are formed at both ends in the longitudinal direction of the bottom plate member 12, when the end surfaces of the bottom plate member 12 adjacent in the longitudinal direction of the block body 11 (drainage direction of the drainage channel 17) are abutted. A connecting groove portion that is approximately twice the width of the connecting margin 22 is formed.
Therefore, in FIG. 4, the end portions of the bottom plate member 12 are connected in a watertight manner by sticking a seal tape (connecting member) 25 made of, for example, butyl rubber along the connecting groove portion.

As shown in FIG. 4 (a), the sealing tape 25 may be attached to the joint end of the side wall portion 14 of the block body 11, or as shown in FIG. 4 (b). You may make it affix only on the connection margin part 22 of the member 12. FIG.

[Grounding method for cables (1)]
Drawing 5 is an explanatory view showing the construction procedure of the underground chemical conversion method of cables 5 using the side groove block 1 of this embodiment.
In the underground chemical method (hereinafter referred to as “first method”) in FIG. 5, it is assumed that undergrounding is performed when the block main body 11 is newly installed at a construction site. Hereinafter, the contents of the first construction method will be described with reference to FIG.

As shown in FIG. 5A, first, the block body 11 is embedded in the road 2 so that the upper end of the block body 11 substantially coincides with the road surface by accommodating the block body 11 in the cut groove of the road 2.
In this case, the joint ends of the block main bodies 11 that are continuous in the longitudinal direction are sealed with a water-stopping material (not shown).

In addition, as a burying position of the block main body 11, as shown in FIG. 1, the position which corresponds to the public-private boundary line B of the width direction edge part of the road 2 or adjoins is preferable.
The reason for this is that pipes (such as the combined sewage pipe 6 in FIG. 1) are already buried in the center in the width direction of the road 2, but in the case of the side of the road 2 where a gutter is provided, This is because there is a low possibility of interference with such existing pipelines.

After that, as shown in FIG. 5B, the protective tube 5B of the cable 5A required in the section is stored in the storage space 18 on the bottom side of the hollow cross section of the embedded block main body 11.
When the storing operation of the protective tube 5B is completed, as shown in FIG. 5C, the bottom plate member 12 is inserted into the inner cross section of the block main body 11, and both widthwise edges of the bottom plate member 12 are set to the left and right step portions 16. The bottom plate member 12 is mounted inside the block main body 11.
By mounting the bottom plate member 12, the inner hollow section of the block main body 11 is partitioned into a two-stage structure having a drainage channel 17 above the bottom plate member 12 and a storage space 18 below the drain plate 17.

Although not shown in FIG. 5, the space between the bottom plate member 12 and the stepped portion 16 is sealed in a watertight manner by the seal member 24, and the connection end between the bottom plate members 12 adjacent in the longitudinal direction is sealed with the seal tape 25. Sealed.
Then, by closing the upper open portion of the block main body 11 with the lid member 13, the cross-sectional blockage with respect to the side groove block 1 is completed as shown in FIG.

After that, for example, the cable 5A may be inserted from the cable rod 34 (see FIG. 9) into the protective tube 5B, and the cable 5A may be laid along the draining direction of the side groove block 1.
However, the cable 5A is laid down by storing the cable 5A in the storage space 18 with or without the protective tube 5B before mounting the bottom plate member 12 (the state shown in FIG. 5B). You may make it perform.
On the other hand, for example, several years after the construction of the side groove block 1 is completed as described above, it is necessary to lay the cable 5A additionally to the side groove block 1 in the specific section, or a broken cable. It may be necessary to replace 5A.

In this case, first, the lid member 13 is removed from the block main body 11, and necessary cleaning such as sludge removal is performed on the drainage passage 17 in the specific section, and then the hook 21 is hooked on the edge of the bottom plate member 12. And the bottom plate member 12 is taken out from the inside of the block main body 11.
Then, as shown in FIG. 5C, the storage space 18 for the cables 5 inside the block main body 11 is opened. The protection tube 5B may be added or replaced.

[Effect of gutter block]
Thus, according to the side groove block 1 of the present embodiment, the portion below the bottom plate member 12 in the inner cross section of the block main body 11 is the storage space 18 for the cables 5, and thus penetrates the side wall portion 14. Compared to the case where the storage space is provided by the through-hole, the storage space 18 can have a larger cross section. Therefore, the work of laying the cables 5 (the cable 5A itself or its protective tube 5B) in the storage space 18 becomes easier.

Further, according to the side groove block 1 of the present embodiment, the drain plate 17 is cleaned and then the bottom plate member 12 is removed from the block body 11, so that the storage space 18 of the cables 5 can be easily obtained even after the completion of the construction of the side groove block 1. Can be opened.
For this reason, when adding or exchanging the cable 5A or the protective tube 5B, it is not necessary to dig up the ground on the side of the block main body 11, and the addition or replacement of the cables 5 can be easily handled.

Further, according to the side groove block 1 of the present embodiment, the cables 5 are stored in the storage space 18 below the bottom plate member 12 mounted on the inner hollow section of the block main body 11, so that the drainage channel 17 is cleaned. When doing this, the cables 5 do not get in the way.
For this reason, maintenance work such as cleaning for removing sludge on the drainage channel 17 can be easily performed.

Furthermore, according to the side groove block 1 of the present embodiment, the stepped portions 16 that support the left and right edges of the bottom plate member 12 are integrated along the longitudinal direction of the block main body 11 on the inner surface of the side wall portion 14 of the block main body 11. Is formed.
For this reason, for example, compared with a case where a bracket 61 (see FIG. 12) extending in the longitudinal direction of the block main body 11 is attached to the side wall portion 14 and a stepped portion supporting the bottom plate member 12 is created later, the material cost and the impact are reduced. The time required for installation can be reduced, and the manufacturing cost of the side groove block 1 can be reduced.

Further, according to the side groove block 1 of the present embodiment, the gap between the stepped portion 16 and the bottom plate member 12 is watertight with the seal member 24, and the longitudinal ends of the bottom plate member 12 are sealed with the seal tape 25. The water leakage from the drainage channel 17 to the lower storage space 18 is prevented as much as possible.
For this reason, there exists an advantage that obstruction | occlusion of the storage space 18 accompanying the water leak containing earth and sand from the drainage channel 17 reaching the storage space 18 of the cables 5 can be suppressed as much as possible.

[Grounding method for cables (2)]
FIG. 6 is an explanatory diagram showing another construction procedure of the underground chemical conversion method for the cables 5 using the side groove block 1 of the present embodiment.
In the underground chemical method (hereinafter referred to as “second method”) in FIG. 6, as shown in FIG. 6A, the side groove block 1 is already used as a side groove for drainage with the bottom plate member 12 mounted. However, it is assumed that the cables 5 have not yet been underground. Hereinafter, the content of the second construction method will be described with reference to FIG.

In addition, after installing the gutter block 1 which has the storage function of the cables 5 only for drainage use like the underground chemical construction method of this FIG. 6, and the underground chemical engineering method of the following FIG. ) The cable 5 may be stored in the case of the common cable groove construction because it takes a lot of time to adjust opinions with the local residents. This is because there is a case where examination or determination of the underground formation is performed.

In this case, first, the lid member 13 is removed from the upper end opening of the block body 11 and the drainage channel 17 is cleaned, and then the bottom plate member 12 is removed from the block body 11 to open the storage space 18.
Thereafter, as shown in FIG. 6B, the protective tube 5B is stored in the storage space 18, and then the bottom plate member 12 is mounted inside the block body 11 as shown in FIG. The water stop point is sealed to restore the drainage channel 17 to its original state.

Then, by returning the removed lid member 13 to the upper end opening of the block main body 11, the cross-sectional blockage with respect to the side groove block 1 is completed as shown in FIG.
After that, for example, the cable 5A may be inserted from the cable rod 34 (see FIG. 9) into the protective tube 5B, and the cable 5A may be laid along the draining direction of the side groove block 1.
However, even in the case of the second construction method, the cable 5A may be stored in the storage space 18 with or without the protective tube 5B before the bottom plate member 12 is attached (state of FIG. 6B). Good.

[Grounding method for cables (3)]
FIG. 7 is an explanatory diagram showing another construction procedure of the underground chemical conversion method for the cables 5 using the side groove block 1 of the present embodiment.
In the underground chemical method (hereinafter referred to as “third method”) in FIG. 7, as shown in FIG. 7A, the side groove block 1 is already used as a side groove for drainage without the bottom plate member 12 attached. Although it was used, the case where the undergroundization of the cables 5 has not been completed is assumed. Hereinafter, the contents of the third method will be described with reference to FIG.

In this case, first, the lid member 13 is removed from the upper end opening of the block main body 11 and the inside of the storage space 18 of the block main body 11 used as a drainage channel is cleaned, so that the storage space 18 becomes the original cable. It can be used as a storage for class 5.
Thereafter, as shown in FIG. 7B, the protective tube 5B is stored in the storage space 18, and then the bottom plate member 12 is mounted inside the block body 11 as shown in FIG. The drainage channel 17 is formed by sealing the water stop.

Then, by returning the removed lid member 13 to the upper end opening of the block main body 11, the cross-sectional blockage with respect to the side groove block 1 is completed as shown in FIG.
After that, for example, the cable 5A may be inserted from the cable rod 34 (see FIG. 9) into the protective tube 5B, and the cable 5A may be laid along the draining direction of the side groove block 1.
However, also in the case of this third construction method, the cable 5A can be stored in the storage space 18 with or without the protective tube 5B before the bottom plate member 12 is mounted (the state shown in FIG. 7B). Good.

[Components of the buttocks section]
FIGS. 8A to 8D show a change block 31 and a water collecting basin 32, which are constituent members of the heel section 4 (see FIG. 1).
8A is a plan view of the change block 31 and the water collecting basin 32, FIG. 8B is a perspective view of the direction changing member 33, and FIG. 8C is a longitudinal sectional view of the water basin 32, FIG. 8 (d) is a cross-sectional view of the change block 31 and the catchment basin 32.

As shown in FIG. 8, the change block 31 includes a block main body 35 having the same cross-sectional shape as the block main body 11 of the side groove block 1 and a bottom plate member 36 having the same cross-sectional shape as the bottom plate member 12.
When the bottom plate member 36 is mounted inside the block main body 35, the inside is partitioned into two upper and lower stages of an upper space 37 and a lower space 38. In this case, the upper space 37 has the same cross-sectional shape as the drainage channel 17 of the side groove block 1. Thus, the lower space 38 has the same cross-sectional shape as the storage space 18 of the side groove block 1.

Therefore, when the change block 31 is concentrically connected to the end of an arbitrary side groove block 1, the upper space 37 of the change block 31 communicates with the drainage channel 17 of the side groove block 1, and the lower space 38 is the storage space for the side groove block 1. 18 communicates.
The block main body 35 of the change block 31 is formed with a drain port 39 in the side wall portion on the center side of the road, and the drainage that has flowed into the upper space 37 is supplied to the drain port 39 in the upper space 37 of the change block 31. A direction changing member 33 for guiding is provided.

For example, as shown in FIG. 8 (b), the direction changing member 33 is made of a block body or a plate material having a concave curved surface for almost a quarter of a round, and the curvature radius of the concave curved surface is the upper space 37. The dimension is substantially equivalent to the cross-sectional width.
Further, the direction changing member 33 is housed in the upper space 37 in a state where the concave curved surface is desired for both the entrance of the upper space 37 and the drain port 39. For this reason, as shown by the thick arrow in FIG. 8, when the drainage flows from the entrance of the upper space 37, it strikes the concave curved surface and is turned 90 degrees toward the center of the road to reach the drainage port 39.

Accordingly, when the change block 31 is connected to the end portion of the side groove block 1, the upper space 37 of the change block 31 allows the drainage flowing in the longitudinal direction of the road flowing in from the drainage channel 17 of the side groove block 1 to pass through the center of the road by the direction change member 33. The function to change to the side is demonstrated.
On the other hand, in the case of the lower space 38 of the change block 31, the cables 5 inside the storage space 18 are bent because they communicate straight in the longitudinal direction and are not provided with the direction change member 33. It has the function which can be passed as it is.

The drainage basin 32 includes a box body 40. Although the shape and dimensions of the box body 40 can be arbitrarily set, in this embodiment, the change block 31 has substantially the same cross-sectional shape as the block body 35 and the longitudinal dimension is larger than the block body 35. Yes. A water collection port 41 is formed in the side wall portion of the box body 40, and the side wall portions of the box body 40 and the block body 35 are connected to each other in a superposed manner so that the water collection port 41 and the drain port 39 coincide with each other. Is done.
For this reason, the wastewater whose direction is changed to the center of the road in the upper space 37 is temporarily stored in the water collection space in the water collection tank 32 through the water collection port 41.

In the example shown in FIG. 8 (a), the grating is fitted in the upper end openings of the block main body 35 of the change block 31 and the box main body 40 of the catchment basin 32. You may decide to insert in a part.

[Configuration example of the buttocks section]
FIGS. 9A and 9B are plan views showing a configuration example of the buttock section 4 using the change block 31 and the catchment basin 32. FIG.
Among these, FIG. 9A shows a case where there is a cable rod 34. As shown in the figure, in the configuration example of the flange section 4, a change block 31 is connected to the side groove block 1 at the end of the side groove section 3, and a cable flange 34 is further connected to the change block 31.

The cable rod 34 is also called a so-called joint groove special portion, and has a size corresponding to, for example, a handhole or a manhole. In some cases, a power pole is provided on the upper surface or side surface of the cable cage 34, or a communication relay device or transformer is provided inside the cage.
The side groove block 1, the change block 31, and the cable rod 34 are all arranged with their outer edges in the width direction aligned with the public-private boundary line B. On the other hand, the water collecting basin 32 is disposed at a position offset to the center side of the road of the change block 31 (the lower side in FIG. 9).

According to the drainage facility of the present embodiment, the change block 31 located on the extension of the side groove section 3 has the upper space 37 that communicates with the drainage channel 17 of the side groove block 1 and changes the direction of drainage to the center of the road. Therefore, as shown in FIG. 9A, the water collecting basin 32 that collects the drainage from the upper space 37 can be disposed at a position offset to the center of the road in the side groove section 3.
For this reason, since the water collecting basin 32 does not interfere with the storage space 18 of the side groove block 1, there is no need to bypass the cables 5 outside the side groove block 1 in the section where the water collecting basin 32 is installed. Laying work can be easily performed.

Moreover, according to the drainage equipment of this embodiment, the change block 31 located on the extension of the side groove section 3 can be passed through the storage space 18 of the side groove block 1 without bending the cables 5. Since the lower space 38 is provided, the cable rod 34 that receives the cables 5 passing through the lower space 38 can be disposed on the extension of the side groove section 3 as shown in FIG.
For this reason, since the cables 5 in the side groove block 1 can be extended to the cable rod 34 without being bent through the lower space 38 of the change block 31, the cables 5 are connected to the side groove block 1 in the section where the cable rod 34 is installed. It is not necessary to make a detour to the outside of the cable, and the cable 5 can be easily laid.

The direction changing member 33 is a member that prevents waste and sludge from accumulating at the end of the side groove section 3 by guiding the drainage from the side groove section 3 as smoothly as possible to the catchment 32. It is not always necessary to provide in the upper space 37 of the change block 31.

On the other hand, FIG. 9B shows a case where the cable rod 34 is not provided. As shown in the figure, in the configuration example of the buttock section 4, only the change block 31 is connected to the side groove block 1 at the end of the side groove section 3, and is offset to the road center side of the change block 31. A catchment 32 is arranged.
Accordingly, also in the case of FIG. 9B, the water collecting basin 32 does not interfere with the storage space 18 of the side groove block 1, so that the cables 5 are detoured outside the side groove block 1 in the section where the water collecting basin 32 is installed. There is no need and the effect that the installation work of the cables 5 can be performed easily is obtained.

In the configuration example of FIG. 9B, the drainage flowing down from the left and right side groove sections 3 and 3 toward the change block 31 is guided to the catchment basin 32. It communicates with the drainage channel 17 of the side groove sections 3 and 3, and the direction changing member 33 is not provided in the upper space 37.
Moreover, in FIG. 9, the code | symbol 42 is the horizontal drainage pipe connected to the water collection tank 32, and this drainage pipe 42 is connected to the said joining type sewer pipe 6 (refer FIG. 1), for example. Reference numeral 43 denotes a protective tube branched from the cable rod 34 and extending in the transverse direction.

[Modification of the buttocks section]
FIG. 10 is a plan view showing a modification of the buttock section 4.
In the present embodiment, the side groove block 1 constituting the electric wire joint groove has the drainage channel 17 in the upper section and the housing space 18 for the cables 5 in the lower section. When connecting the water collecting basin 32 or the cable basin 34 to the side groove section 3 constituted by the side groove block 1 having the upper and lower two-stage structure, for example, as shown in FIG. It is also possible to arrange the cable rod 34 so as to be offset to the road center side (the lower side in FIG. 10) of the side groove section 3.

However, since the side groove block 1 of the present embodiment has the housing space 18 for the cables 5 on the bottom side in the block main body 11, the drainage trough 32 having a depth greater than that of the side groove block 1 is placed on the extension of the side groove section 3. If it arrange | positions, the storage space 18 will be parted by the water collecting basin 32.
Therefore, as shown in FIG. 10, in the installation section of the catchment basin 32, the cables 5 need to be laid around the outside of the side groove block 1, and in this case, the side wall portion 14 of the side groove block 1 is perforated. This necessitates laying the cables 5 very complicated.

Note that the above problem does not occur if the catchment basin 32 shallow enough not to interfere with the storage space 18 is used, but it is highly possible that a desired capacity cannot be obtained.
Further, if the cable rod 34 is arranged offset to the center of the road, the storage space 18 of the gutter block 1 is not communicated with the internal space of the cable rod 34. In this case as well, as shown in FIG. It is necessary to make a detour outside the gutter block 1, and the installation work of the cables 5 becomes very complicated.

On the other hand, in the drainage facility of FIG. 9, the change block 31 having the upper space 37 for changing the drainage direction to the center of the road and the lower space 38 through which the cables 5 can pass straight is extended to the side groove section 3. The catchment 32 connected to the upper side and communicating with the upper space 37 of the change block 31 is arranged offset to the center of the road in the gutter section 3, so that the catchment 32 with a sufficiently large capacity is adopted. However, the storage space 18 of the side groove block 1 is not divided.
For this reason, it is not necessary to make the cables 5 detour outside the gutter block 1 in the installation section of the water collecting basin 32, and the installation work of the cables 5 becomes easy.

Further, in the drainage facility of FIG. 9, a change block 31 having an upper space 37 for changing the drainage direction to the center of the road and a lower space 38 through which the cables 5 can pass straight is connected on the extension of the gutter section 3. Since the cable rod 34 communicating with the lower space 38 of the change block 31 is disposed on the extension of the side groove section 3, the cables 5 in the side groove block 1 are not bent through the lower space 38. Can be extended to 34.
For this reason, it is not necessary to bypass the cables 5 to the outside of the gutter block 1 in the installation section of the cable rod 34, and the installation work of the cables 5 becomes easy.

9, if the cable rod 34 communicating with the lower space 38 of the change block 31 is arranged on the extension of the side groove section 3, the cable rod 34 is arranged close to the public-private boundary line B. be able to.
For this reason, the cable laying distance from the cable rod 34 to the private side can be shortened as compared with the case where the cable rod 34 is arranged offset to the center of the road (in the case of FIG. 10), and the cable center of the cable rod 34 is Since there are few overhang | projections to the side, there exists an advantage that the effective pavement width | variety of the road 2 can be ensured as much as possible.

[Modification of lid member]
FIG. 11 is a perspective view of the side groove block 1 for showing a modification of the lid member 13.
As shown in FIG. 11, the lid member 13 of this modification includes a lid body 13A and curb portions 13B to 13D that are integrally projected from the upper surface thereof. The curb portions 13B to 13D include three types: a curb portion 13B at the boundary of the walking path, a curb portion 13C as a rubbing portion, and a curb portion 13D as a sidewalk ride-on portion.

Of these, the curb portion 13B at the boundary of the walking road has a cross-sectional height at which the vehicle cannot enter, and the curb portion 13D at the sidewalk climbing portion has a small cross-sectional height at which the vehicle can enter. Further, the upper surface of the curb portion 13C of the rubbing portion is inclined in a rubbing manner so as to gradually become lower from the upper surface of the curb portion 13B toward the upper surface of the curb portion 13D.

[Modification of side groove block]
12 and 13 are cross-sectional views showing modifications of the side groove block 1.
The side groove block 1 shown in FIG. 12A has a pair of left and right brackets (a general term for cantilevered support members) 61 and 61 formed on the inner surface of each side wall portion 14 of the block body 11 to form a stepped portion. A bottom plate member 12 is constructed between 61 and 61.
In this case, a side groove having a drainage channel 17 at the top of the cross section and a storage space 18 for the cables 5 at the bottom of the cross section even for a normal block body 11 that does not have the step 16 for mounting the bottom plate member 12. Block 1 can be configured.

Further, the “middle bottom member” for forming the drainage channel 17 in the upper part of the inner hollow cross section of the block main body 11 is not limited to the above-described flat bottom plate member 12, for example, FIG. 12B to FIG. Various structures shown in FIGS. 13A to 13C can be adopted.
That is, in the side groove block 1 shown in FIG. 12 (b), as the mid-sole member, an upper opening-shaped water channel member 62 is employed in which the side plate portion is erected upward from the left and right edges of the bottom plate portion.

As shown in FIG. 12B, if the bottom plate portion of the water channel member 62 is installed on brackets 61 and 61 provided on the both side wall portions 14 of the block main body 11, the drainage channel 17 is provided at the top of the cross section and the cables. A side groove block 1 having five storage spaces 18 in the lower section can be formed.
In addition, about this water channel member 62, the level | step-difference part 16 can also be used for the block main body 11 of FIG.

In the side groove block 1 shown in FIG. 12 (c), as an insole member, a water channel having a side plate portion erected upward from the left and right edges of the bottom plate portion and having a latching portion 63 at the upper end edge of each side plate portion. The member 64 is employed.
In the case of this water channel member 64, both the latching portions 63, 63 are latched on the upper end portion of the block main body 11 and set at the upper part in the block main body 11, thereby having the drainage channel 17 at the upper section. The side groove block 1 which has the storage space 18 of the cables 5 in the lower part of a cross section can be comprised.

In the side groove block 1 shown in FIG. 12 (d), a cover member 65 having a lower opening formed by extending the side plate portion downward from the left and right edges of the top plate portion is employed.
In the case of this cover member 65, the bottom plate of the drain plate 17 is constituted by the top plate portion of the cover member 65 by storing until the lower edge of the side plate portion reaches the bottom surface of the block body 11, and the cover member The storage space 18 for the cables 5 can be secured inside the 65.

As described above, the insole member attached to the inside of the block main body 11 can be detachably attached to the inside of the cross section of the block main body 11, and by the attachment, the upper drainage channel 17 and the lower storage space 18 Anything can be used as long as the internal space of the block body 11 can be divided.

[Other variations of side groove block]
FIG. 13A is a perspective view showing another modified example of the gutter block 1, and FIG. 13B is a cross-sectional view thereof.
The side groove block 1 includes a block main body 11 and a curb block 52 with a drainage channel that is fitted into an upper portion of the inner cross section thereof. The curb block 52 includes a base portion 53 on the lower side and a curb portion 54 protruding upward from the upper surface of the base portion 53. In the cross section of the base portion 53, drainage having a circular cross section penetrating in the longitudinal direction. A passage 55 is formed.

The base portion 53 of the curb block 52 has substantially the same cross-sectional dimension as the upper half portion above the step portion 16 in the inner space portion of the block main body 11. Therefore, as shown in FIG. 13B, the base portion 53 can be fitted into the block body 11 with only the curb portion 54 protruding from the upper end of the block body 11.
Further, the curb block 52 is formed with a water collecting slit 56 extending from the base of the curb portion 54 to the drainage passage 55, and road surface water flows from here and is taken into the drainage passage 55.

It should be noted that the embodiment disclosed this time is illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, and includes all modifications that are within the scope of the claims and equivalents.

DESCRIPTION OF SYMBOLS 1 Side gutter block 2 Road 3 Gutter section 4 Ridge section 5 Cables 11 Block main body 12 Bottom plate member (mid bottom member)
13 Lid member 14 Side wall part 15 Bottom wall part 16 Step part 17 Drainage space (drainage channel)
18 Storage space 24 Seal member 25 Seal tape (connecting member)
31 Change block 32 Water collecting rod 33 Direction changing member 34 Cable rod 37 Upper space 38 Lower space

Claims (11)

1. A side groove block having both a function as an electric wire common groove capable of storing cables together and a function as a side groove for drainage,
   A block main body having an open top, integrally including left and right side wall portions and a bottom wall portion connecting lower end portions thereof;
   An insole member that can be detachably attached to the inside of the block main body, and divides the internal space of the block main body into an upper drainage space and a lower storage space for the cables,
   A gutter block comprising:
2. The step part for supporting the both right-and-left edge part of the said midsole member is integrally extended in the inner surface of the said side wall part of the said block main body along the longitudinal direction of the said block main body. Side groove block.
3. The gutter block according to claim 2, further comprising a seal member for watertightly sealing between an edge of the midsole member and the inner surface of the stepped portion or the side wall portion.
4. The side groove block according to any one of claims 1 to 3, further comprising a connecting member that water-tightly connects the end portions in the drain direction of the bottom plate member.
5. The side groove block according to any one of claims 1 to 4, wherein the insole member is formed of any one of the following (a) to (d).
   (A) Bottom plate member that can be installed in the middle in the vertical direction of the side wall of the block body (b) Water channel member that can be installed in the middle in the vertical direction of the side wall of the block main body (c) Hook in the upper end opening of the block main body (D) An open section with a lower opening shape that can store cables therein, and a top plate that forms the bottom surface of the drainage space when stored in the bottom of the block body Cover member having
6. A side groove section composed of a plurality of side groove blocks according to any one of claims 1 to 5 installed continuously in a longitudinal direction of a road, and connected to the side groove block so as to be located on an extension of the side groove section One or more modified blocks,
   An upper space in which the change block communicates with the drainage space and changes the direction of drainage toward the center of the road, and a lower space that communicates with the storage space and allows the cables to pass through without being bent. Drainage equipment characterized by having.
7. The drainage facility according to claim 6, wherein a catchment for collecting drainage from the upper space is disposed at a position offset toward the center of the road in the gutter section.
8. The drainage facility according to claim 6 or 7, wherein a cable trough communicating with the lower space is disposed on an extension of the gutter section.
9. The method for undergrounding cables using the gutter block according to any one of claims 1 to 5, comprising the following steps (a1) to (c1).
   (A1) Step of newly burying the block body so that the upper end coincides with the road surface (b1) Step of storing the cables in the bottom of the block body (c1) The midsole member in the block body The process of attaching
10. The method for undergrounding cables using the gutter block according to any one of claims 1 to 5, comprising the following steps (a2) to (c2).
    (A2) A step of removing the midsole member from the existing block body that is used as a side groove for drainage in a state where the midsole member is mounted. (B2) The cables are housed in the bottom of the block body. Step (c2) Step of mounting the insole member in the block body
11. The method for undergrounding cables using the gutter block according to any one of claims 1 to 5, comprising the following steps (a3) to (b3).
    (A3) A step of storing cables in the bottom of the existing block main body that is used as a side groove for drainage in a state where the insole member is not mounted (b3) The midsole member in the block main body The process of attaching

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