JPH044010Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] This invention relates to a road paving device.

[Conventional technology]

In general, roads paved with asphalt are less durable than roads paved with concrete, such as being more prone to ringing.
It has a good finish and runs very well.

For this reason, recently, asphalt pavement has become mainstream, and areas where there is heavy vehicle traffic and where the road surface is subject to severe wear are still paved with concrete. Therefore, even on continuous roads, there are joints between asphalt pavement and concrete pavement.

[Problem that the invention attempts to solve]

However, due to the difference in materials at the joint between asphalt pavement and concrete pavement, unevenness such as ringing is likely to occur on the asphalt pavement side, while on the concrete pavement side,
The drawback was that it was easily damaged by cracks, chips, etc., and was generally severely damaged by passing vehicles.

This invention was proposed in order to solve the above-mentioned conventional problems, and it is a road that successfully absorbs the impact of passing vehicles and eliminates damage to road joints caused by passing vehicles. The purpose is to provide a paving device.

[Means for solving problems]

This idea consists of a plurality of PC paving boards that are elongated in the width direction of the road and have a rectangular cross-sectional shape with one side protruding in a chevron shape, and are installed side by side so that they touch each other in the road direction, so that one side is flat and the other side is flat. The paving plates are connected so that the surfaces are wavy and uneven, and the upper paving plate whose lower surface is wavy and uneven is the upper part, and the lower paving plate whose upper surface is wavy and uneven is the lower part, and the wavy and uneven surfaces interlock with each other. The elastic joint member is interposed between the uneven surfaces and stacked, and the stacked paving plates are laid between a road made of concrete pavement and a road made of asphalt pavement so that the road surfaces are continuous, and an upper paving plate, The above objective is achieved by connecting the lower paving plates with a plurality of prestressed steel members.

〔Example〕

Hereinafter, this invention will be explained with reference to an example illustrating a road 1 paved with precast concrete plates or cast-in-place concrete.
A plurality of precast concrete paving plates 3 (hereinafter referred to as PC paving plates) are arranged between roads 2 paved with asphalt and asphalt so that the road surface is continuous with roads 1 and 2, and are stacked double above and below. It is laid down.

The PC pavement board 3 is formed to be elongated in the width direction of the roads 1 and 2. Further, among the upper and lower PC paving plates 3, the lower surface of the upper PC paving plate 3 is formed into a substantially V-shaped cross section, and the upper surface of the lower PC paving plate 3 is in an inverted V shape corresponding to the lower surface of the upper PC paving plate 3. It is formed with a wavy uneven surface.

Then, among the upper and lower PC paving plates 3, 3, the upper PC paving plate 3, . . . is the lower PC paving plate 3, . They are stacked on top of each other. As a result, up and down
The contact portion between the PC paving plates 3, 3 has a sawtooth-like uneven shape that continues in the longitudinal direction of the roads 1, 2.

The upper PC pavement board 3 laid in this way...
and the lower PC pavement board 3, . . . are connected by continuously inserting a plurality of PC steel members 4 between these members.

The PC steel material 4 is coated with asphalt or grease on its surface, or a sheath is inserted therethrough to prevent it from adhering to the concrete of the PC paving plates 3, . . . . Both ends of the PC steel material 4 are fixed in the concrete and asphalt of roads 1 and 2.

In addition, at the contact part between the upper and lower PC paving plates 3, 3,
An elastic joint member 5 made of natural rubber or synthetic resin is interposed.

The elastic joint member 5 is formed into a sheet and is interposed between the upper and lower PC paving plates 3, 3 by adhering them to the upper and lower PC paving plates 3, 3 with an adhesive.

In addition, the elastic joint member 5 is attached to the upper and lower PC paving boards 3,
It can also be formed by injecting a urethane resin-based melt between the three spaces.

In this configuration, the elastic joint member 5 between the upper and lower PC paving boards 3, 3 allows the PC paving boards 3,
3.The overall spring constant is kept low, and
PC paving board 3, ... are each at the joint part,
It has a structure that allows for free angular displacement.

Then, when the vehicle passes over the PC paving plates 3, . . . , the PC paving plates 3, .
As a result, it functions as a buffer between the road 1 made of concrete pavement and the road 2 made of asphalt pavement.

FIG. 3 shows a modification of the PC paving board 3. A recess 6 is provided in the center of the lower surface of the upper PC paving board 3 and the upper surface of the lower PC paving board 3, and the recess 6 is also
An elastic joint member is filled together with the elastic joint member 5 between the PC paving boards 3, 3, and the elastic joint member in this part is used as a key to prevent the upper and lower PC paving boards 3, 3 from shifting laterally, so that when a vehicle passes, the upper and lower PC This is to prevent the paving plates 3, 3 from shifting laterally.

[Effect of idea]

Since this invention has the above configuration, it has the following effects.

Multiple PC paving plates are laid between the concrete paved road and the asphalt paved road so as to create an angular displacement, and act as a buffer between the two roads, effectively absorbing the impact of passing vehicles. , it is possible to completely prevent damage to road joints caused by vehicle traffic.

In addition, construction is extremely simple, as the entire PC pavement board is connected by a plurality of PC steel members, and only elastic joint members are interposed between the upper and lower PC pavement boards.

[Brief explanation of drawings]

Figures 1 to 3 show an example of this concrete. Figure 1 is a cross-sectional view of the joint between a concrete pavement road and an asphalt pavement road. FIG. 3 is a perspective view showing a modification of the PC paving board. 1, 2...road, 3...PC paving board, 4...PC
Steel material, 5... elastic joint member, 6... recess.

Claims (1)

[Scope of utility model registration request] A plurality of PC paving boards that are elongated in the width direction of the road and have a cross-sectional shape with one rectangular side protruding in a chevron shape are installed side by side in contact with each other in the road direction, with one surface being flat and the other surface being wavy and uneven. The upper paving plate whose lower surface is a wavy uneven surface is the upper part, and the lower paving plate whose upper surface is the wavy uneven surface is the lower part, and the wavy uneven surfaces are interlocked with each other. Elastic joint members are interposed between uneven surfaces and stacked, and the stacked paving plates are laid between a concrete pavement road and an asphalt pavement road so that the road surfaces are continuous, and an upper paving plate and a lower paving plate are placed. multiple PCs each
A road paving device characterized by being connected by steel material.