JPH0791817B2 - Snow-melting block for snow-melting road and its construction method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a snow-dissipating block for a snow-dissipating road, which is laid on a road in a snowy area to be a snow-dissipating road, and a construction method thereof.

[Problems to be Solved by Prior Art and Invention]

The applicant provided a snow-melting nozzle as a concrete block, and developed a construction method for completing the snow-melting road by joining the concrete blocks and attaching it to the road surface. Utility model registration No. 1556714 No. 13459) is registered.

We have actually tested it and tested its performance and durability, but as a result, it was confirmed that the following drawbacks were observed when the block body had a rectangular cross section, as in JP-B-55-13459. .

The top width of the block body tends to be wide.

The laying groove engraved on the road tends to be wide.

Cracks are likely to occur in the parts A and B of FIG.

The pavement layer on the laying groove is easy to peel off.

In addition, it has been confirmed that the method of adopting a joint fitting protruding in an ear shape as in the case of JP-A-61-68913 and superimposing and fixing with a bolt nut has the following drawbacks. It was

Although a joint material is often interposed between the concrete blocks adjacent to each other, the above-described connecting metal fitting has a drawback that the cushioning effect of the joint material that absorbs the stress of compression and separation of the joint is lost.

When a vehicle load is applied to the left end side of the concrete block body and sinks, the opposite right end side rises, and there is a drawback that the water pipe is damaged or the connecting fitting is damaged.

The inventor has completed the present invention by repeating various trial tests in order to solve these problems.

[Means for Solving the Problems]

 The detailed description will be made with reference to the accompanying drawings.

A joint inner cylinder 6 and a joint outer cylinder 7 are fitted and fastened to both left and right ends inside a slender concrete block body a having a substantially flat top surface 1 and an inclined side surface 2 with a wide lower portion. The water supply pipe 3 is embedded with the tip of the joining inner cylinder 6 and the tip of the joining outer cylinder 7 protruding from the side surface of the block body a, respectively. 4, an upper surface 4'of the nozzle is exposed on the outer surface of the block body a and is erected in a state of communicating with the water supply pipe 3, and an O-ring receiving groove 5 is formed on the outer periphery of the joint inner cylinder 6 projecting from one end surface of the block body a. A plurality of projections 6'of the joining inner cylinder 6 are fitted into the joining outer cylinder 7 projecting from the opposing end faces of the adjacent block bodies a to be joined via an O-ring 8 and a plurality of In a snow-melting block for a snow-melting road, characterized in that the block body a is configured so that the upper surfaces thereof can be connected in series so as to be flush Is shall.

In addition, a substantially flat top surface 1 and an inclined side surface 2 having a wide lower part
In the inside of a slender block body a having
The water supply pipe 3 in which the splicing inner cylinder 6 and the splicing outer cylinder 7 are fitted and fixed at both left and right ends is made to project the tip of the splicing inner cylinder 6 and the tip of the splicing outer cylinder 7 from the side surface of the block body a, respectively. The plurality of sprinkler nozzles 4 are erected at predetermined intervals in the water supply pipe 3 with the nozzle upper surface 4'exposed to the outer surface of the block body a so as to stand in communication with the water supply pipe 3 to form the block body a. The O-ring receiving groove 5 is provided on the outer periphery of the splicing inner cylinder 6 projecting from one end face of
The protruding portion 6'of the joining inner cylinder 6 is fitted through the O-ring 8 into the joining outer cylinder 7 projecting from the opposing end surface of the block body a to be joined next, and a plurality of block bodies are inserted. a is flush with the upper surface and connected in series to form a sprinkling block row A having a desired length, and the sprinkling block row A is cut into the laying groove 9 cut by cutting the existing pavement layer 11 on the road surface 10. Block body a
The upper surface of the block body a and the existing pavement layer are laid at a height that is substantially flush with the upper surface 11 'of the existing pavement layer 11 and sand or gravel 13 is filled in the voids 12 of the laying groove 9. The present invention relates to a method of constructing a snow-melting block for a snow-melting road, which is characterized in that a pavement layer 14 is newly provided on the cut-off portion of 11.

[Action]

When the jointed inner cylinder 6 and the jointed outer cylinder 7 which are fastened to both ends of the water supply pipe 3 are fitted, they are joined to the male and female fitting style in which there is a buffering property due to the presence of the O-ring 8 and which does not leak water. Is
Since the length of the fitting overlap portion is long, a durable connection structure is provided.
Moreover, since the splicing inner cylinder 6 and splicing outer cylinder 7 are spliced together with the presence of the O-ring 8 in a removable state, the load of the vehicle is applied to one end of the block body a and the other end is moved upward. Even if a lifting force is exerted, the joint portion is prevented from being damaged by the cushioning action of the O-ring 8 and the fitting expansion and contraction action of the joint inner cylinder 6 and the joint outer cylinder 7, and the adjacent block bodies a Even if the joint material is packed in between, the cushioning effect of the joint material is not impaired.

Ground water is supplied to the water supply pipe 3, for example, by operating the pump 15 and the drain pipe 16
When water is sent via the water, groundwater is sprinkled on the road from the nozzle holes 4 ″ of the sprinkling nozzle 4, which melts snow on the road.

Even if the block body a vibrates when passing through an automobile, the cross section is formed in a square shape, for example, in the shape of a trapezoid whose bottom is wide and sand or gravel 13 is filled in the voids 12 in the laying groove 9. As compared with the above, vibration in the vertical direction is prevented, and the sand and gravel 13 in the laying groove 9 firmly presses the block body a. Therefore, cracks do not occur at the parts a and b in FIG.

Further, since the pavement layer 14 is newly paved not only on the upper surface of the block body a but also on the cut portion of the existing pavement layer 11, it is difficult to peel it off.

〔Example〕

The drawing shows an example of a preferred embodiment, in which a substantially flat top surface 1
And a water pipe 3 in which a joint inner cylinder 6 and a joint outer cylinder 7 are fitted and fixed at the right and left ends inside a slender concrete block body a having an inclined side surface 2 whose width is wide downward. The front end of the joint inner cylinder 6 and the front end of the joint outer cylinder 7 are embedded in a state of protruding from the side surface of the block body a, respectively. ′ Is exposed on the outer surface of the block body a and stands upright in a state of communicating with the water supply pipe 3, and an O-ring receiving groove 5 is provided on the outer circumference of the joint inner cylinder 6 protruding from one end surface of the block body a. The protruding portion 6'of the joining inner cylinder 6 is fitted into the joining outer cylinder 7 projecting from the opposite end surface of the adjacent block body a to be joined via the O-ring 8 to attach a plurality of block bodies a. The upper surface is flush with each other and connected in series to form a watering block row A having a desired length,
The sprinkling block row A is laid in the laying groove 9 which is formed by cutting the existing pavement layer 11 on the road surface 10 so that the upper surface of the block body a is substantially flush with the upper surface 11 'of the existing pavement layer 11. Then, sand or gravel 13 is filled in the void 12 of the laying groove 9, and a new pavement layer 14 is provided on the upper surface of the block body a and the cut portion of the existing pavement layer 11.

It is desirable to design the jointed inner cylinder 6 to be a slightly thicker tube than the water supply pipe 3, and to provide an insertion step portion on the inner circumference to fit the end portion of the water supply pipe 3 and weld the end portion. The jointed outer cylinder 7 also has a similar structure and is fitted and welded to the opposite end of the water supply pipe 3, and a case where the insertion step portion of the jointed inner cylinder 6 is provided on the inner circumference is illustrated.

It is desirable that the block body a is formed in a trapezoidal shape, and the side surface 2 thereof is roughened to have unevenness so as to have good adhesion with the pavement layer 14.

The top surface of the block body a may be colored to form a road division zone on the top surface of the watering block row A.

〔The invention's effect〕

INDUSTRIAL APPLICABILITY The present invention provides an excellent snow-melting block for snow-melting roads having the following features and a construction method thereof.

(1) Since the cross-sectional shape of the block body a is widened downward, for example, a type that belongs to a trapezoid, the top surface becomes narrow, and the appearance is good when attached to the center of the road. The central divisional zone is formed, and the narrow exposed area of the block body a is less likely to be vibrated by the passage of an automobile. Therefore, it is much more practical than the conventional block body a having a rectangular cross section. improves.

(2) As described above, since the block body a is formed in a trapezoidal sectional shape, for example, when it is laid in a laying groove, the voids on both sides become wider at the upper side, and sand or gravel is filled in this void. By doing so, the block body a is surely pressed down.

Therefore, even if it receives vibration due to frequent passing of the car, it does not slide, and in particular does not make fine movements in the vertical direction, it is possible to prevent cracks from occurring in the parts a and b in FIG. It is also prevented that the pavement is peeled off.

(3) Since the new pavement layer is widely replaced over both sides of the laying groove, the compaction roller can be easily applied and peeling can be reliably prevented.

(4) Since the joint inner cylinder and the joint outer cylinder of the adjacent block bodies a fitted and fixed to both ends of the water supply pipe are inserted and fitted through the O-rings, there is a buffering water leak. A joint part that does not connect is formed, and the length of the fitted overlapping part of the joint inner cylinder and the joint outer cylinder can be designed to be long, resulting in a durable connection structure that does not damage even when a heavy vehicle load is applied. It becomes a typical watering block row.

(5) Further, since the splicing inner cylinder and splicing outer cylinder are spliced together so that they can be inserted and removed freely, even if the load of the automobile is applied to one end of the block body a and the other end is lifted upward, the O-ring 8
It is possible to reliably prevent the joint portion from being damaged by the cushioning action of the joint and the fitting expansion and contraction action of the joint inner cylinder 6 and the joint outer cylinder 7, and the joint material between the adjacent block bodies a. A snow-dissipating block for a snow-dissipating road and a method of constructing the snow-dissipating road, which exhibits excellent practicality such that the cushioning effect of the jointing material is not impaired even when the snow-filling material is packed.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a plan view of a block body, Fig. 2 is a sectional view, Fig. 3 is a perspective view of a used state, and Fig. 4 is a sectional view of a joined state. 5 is a sectional view of a conventional example. a ... Block body, A ... Sprinkling block row, 1 ... Top surface, 2 ... Inclined side surface, 3 ... Water supply pipe, 4 ... Sprinkling nozzle, 4 '... Nozzle upper surface, 5 ... O-ring Receiving groove, 6 ...
Mating inner cylinder, 6 '... protruding part, 7 ... Mating outer cylinder, 8 ... O
Ring, 9 ... Laying groove, 10 ... Road surface, 11 ... Existing pavement layer, 11 '... Top surface, 12 ... Void, 13 ... Sand and gravel, 14 ...
… Pavement layers.

Continuation of front page (56) References JP-A-61-68913 (JP, A) Actually opened 54-170627 (JP, U) Actually opened 52-132130 (JP, U)

Claims (2)

[Claims] 1. A splicing inner cylinder and a splicing outer cylinder are fitted and fastened to both left and right ends inside a slender concrete block body having a substantially flat top surface and an inclined side surface with a widened lower portion. The water pipe is embedded with the tip of the splicing inner cylinder and the tip of the splicing outer cylinder protruding from the side surface of the block body, respectively, and a plurality of water spray nozzles are blocked on the upper surface of the nozzle at predetermined intervals in this water pipe. The O-ring receiving groove is provided on the outer circumference of the joint inner cylinder protruding from one end surface of the block body so that it is exposed to the outer surface of the body and stands upright with the water pipe. Of the block body to be joined together is inserted through an O-ring into the joining outer cylinder projecting from the opposite end surface of the block body, and a plurality of block bodies can be connected in series so that their upper surfaces are flush with each other. Snow-melting blocks for roads. 2. A splicing inner cylinder and a splicing outer cylinder are fitted and fixed to the left and right ends inside a slender concrete block body having a substantially flat top surface and an inclined side surface with a widened lower portion. The water pipe is embedded with the tip of the splicing inner cylinder and the tip of the splicing outer cylinder protruding from the side surface of the block body, respectively, and a plurality of water spray nozzles are blocked on the upper surface of the nozzle at predetermined intervals in this water pipe. The O-ring receiving groove is provided on the outer circumference of the joint inner cylinder protruding from one side surface of the block body by exposing it on the outer surface of the body and standing up in a state of communicating with the water supply pipe. Fitting through the O-ring into the joining outer cylinder projecting from the opposite end surface of the block body to be joined, and connecting the plurality of block bodies in series with the upper surfaces flush with each other to sprinkle water of a desired length. A block row is formed and the sprinkling block row is cut off from the existing pavement layer on the road surface. The upper surface of the block body is laid in the installed laying groove at a height that is approximately flush with the upper surface of the existing pavement layer, and sand and gravel are packed in the voids of the laid groove to form the upper surface of the block body and the existing pavement. Construction method for snow-melting blocks for snow-melting roads, which is characterized in that a new pavement layer is provided in the cut-off portion of the layer.