JPH06341104A - Method of paving construction in joint section of road, etc. - Google Patents

Abstract

PURPOSE:To shorten the term of paving work by disposing a paving member, in which a vulcanized rubber layer, a base-course asphalt layer and a plastically deformed layer are changed into a cassette, while crossing the opening of the joint section of a road and paving surface course asphalt. CONSTITUTION:Fixing plates 3, 3 are buried at both ends of a vulcanized rubber layer 2 surrounding a gangway footplate 1. A paving base course 4 is laminated while being brought into contact with the upper surface of the vulcanized rubber layer 2. A plastically deformed layer 5 is laminated on the lower surface of the vulcanized rubber layer 2. The vulcanized rubber layer 2, the paving base course 4 and the plastically deformed layer 5 are laminated and changed into a cassette, thus forming a paving member. The paving member is fitted to stepped sections 12, 13 while crossing the opening 11 of the joint sections of highway bridges 101, 102. The surfaces of these opening section, stepped sections and paving member are coated with adhesives, and asphalt forming a surface course 14 is carried out, thus completing the paving structure of the joint sections.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pavement construction method for a joint portion of a road represented by a road bridge. More specifically, a pavement member having a special structure is buried in the joint portion and the upper portion thereof is continuously formed. It is related to the pavement construction method in which the seams are pavemented to eliminate seams.

[0002]

2. Description of the Related Art Conventionally, a slide plate is provided at a seam portion of a road bridge so as to support a load across a play space, and a slide plate for distributing left and right or up and down displacements of the play space thereon.
There is a known construction method in which the toes are layered and the upper surface is continuously paved.

The seam portion of such a road bridge must maintain the flatness and continuity of the road surface while absorbing the deformation of the left and right road bridges due to temperature changes and the like. Since it is directly damaged, it is easily damaged, and a step is likely to occur due to wear, which causes unpleasant noise and vibration due to vehicle running, and often causes water leakage from this part to the road below. Was.

In this type of pavement construction method, it is necessary to regulate road traffic and complete the construction within a very restricted time. However, each pavement member is assembled on site at the construction site. As the construction work time is prolonged,
Also, problems such as unstable quality have been pointed out with changes in the working environment. That is, since various members forming these joints are attached and assembled for each member at the work site, there is a drawback that the working time becomes long and the finished products are likely to have variations in quality.

[0005]

Further, as a big problem, since a clearance is provided at the end of the seam in preparation for expansion and contraction of the road bridge, a transition plate for supporting the load of the vehicle is arranged here. However, due to the expansion and contraction of the bridge and the vertical displacement of the girder ends, stress concentrates at one location, which often causes cracks in the pavement. Also, in order to disperse the internal stress, a slip layer is provided between the end of the bridge and the pavement material, but the vibration that occurs when the wheel passes through also tends to cause cracks in the pavement material. There is.

The present invention proposes a new pavement construction method in view of the above-mentioned drawbacks of the prior art, and a source of vibration when a crossing plate disposed at the end of a road passes a wheel. There is an attempt to fix it with an elastic body so that it does not become a problem, and further, each member that constitutes the seam part is formed into a cassette in advance to obtain a uniform member, and it is intended to shorten the construction time and improve the construction quality. .

The present invention is intended to improve these drawbacks of the prior art and, more particularly, to provide a pavement member for a seam portion of a road or the like, in which variations in quality are completely eliminated.

[0008]

SUMMARY OF THE INVENTION The present invention is directed to a vulcanized rubber layer which surrounds a transition plate which is laid across a free space of a seam portion of a road, a base asphalt layer on an upper surface, and a lower surface. A plastic deformation layer and a pavement member integrated with the pavement member are formed in advance to form a cassette, and the pavement member is arranged across the play space of the road joint,
Then, the present invention relates to a pavement method for a seam portion of a road or the like, which is characterized by paving the surface asphalt on the surface of the paving member together with the surface of the road.

As a particularly specific construction method, the end pavement asphalt of the left and right roads is cut toward the seam to form two step portions, and pavement members that match these two step portions are fitted. In the paving method, the vulcanized rubber layer is provided with a crossing plate corresponding to the step on the seam side, the base asphalt layer laminated on the upper surface, and the step side. The plastic deformation layer laminated on the lower surface of the pavement is laminated and integrated to form a paving cassette, a backup material and an elastic seal are set in the free space of the seam portion of the road end, and then two step portions are formed. The surface is smoothed with a resin concrete, an adhesive is applied to the surface, and then the pavement member formed into the cassette is fitted, and both ends of the pavement member are fixed to a step portion on the road side, and then these surfaces are fixed. The same surface asph Those relating to pavement construction method at the seam portion of a road or the like, which comprises pavement by belt layer.

[0010]

The present invention has the structure as described above, and the greatest feature thereof is that it uses a pavement member in which all of these structures are integrated and formed into a cassette, and is integrated in a factory. In addition, the quality is always constant, and the cassette-shaped member can be adopted as it is at the construction site, and the construction time can be shortened.

Referring to each structure, the crossing plate is for straddling a play space of a joint portion of a road or the like, receives a load of a vehicle or the like passing on the road, and connects it to both sides of the joint portion of the road or the like. It has the effect of dispersing.

A vulcanized rubber layer is formed by surrounding the crossing plate to prevent water from leaking from the joint portion and prevent cracks from being generated even when the road bridge is repeatedly expanded and contracted. Is. In other words, by disposing the cross plate in the vulcanized rubber layer, the load locally acts via the rubber layer, the concentrated load is dispersed, and the occurrence of bending and distortion is suppressed, It is possible to hold it in an appropriate position. The trapezoidal and corrugated fingers on both ends of the crossover plate widen the contact surface, and even if there is a step at the road joint, the rapid up and down movement of the vehicle can be prevented. Bring

Further, it is preferable that a step (offset) is formed in the thickness direction between the bridging plate and the fixed plate embedded in the vulcanized rubber layer, and stress generated in the vulcanized rubber layer is formed. Shear deformation will be generated and absorbed.

This vulcanized rubber layer is a backup layer of a pavement base layer and a plastic deformation layer, and a pavement base layer having a cushioning property is disposed on the upper surface of this vulcanized rubber layer, and the vehicle passes over a road. Here, the weight is buffered and dispersed, and the deformation and stress are absorbed. A plastic deformation layer made of a viscous material is disposed on the lower surface, which improves the adhesion between the road end and the seam member and absorbs lateral expansion and contraction and vertical displacement of the road.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The pavement member of the present invention will be described below in more detail with reference to the drawings. FIG. 1 is a sectional view of an embodiment of the paving member of the present invention. In the figure, 1 is a crossover plate, and 2 is a vulcanized rubber layer surrounding the crossover plate 1. Fixed plates 3 and 3 are embedded at both ends of the vulcanized rubber layer 2,
The crossover plate 1 and the fixed plates 3 and 3 are arranged so as to correspond to a step portion described later.

In addition, in contact with the upper surface of the vulcanized rubber layer 2, goose asphalt is laminated as a pavement base layer 4, and on the back side of the vulcanized rubber layer 2, a bituminous sheet is a plastic deformation layer. 5 are stacked.

In the pavement member of the present invention, each of these members is laminated to form a cassette, and the width W and the length (front and back of the paper) of the cassette-formed seam member are set in the factory. Will be formed into a constant shape.

FIG. 2 is a cross-sectional view of the road end when the pavement member of the present invention is actually used in a road bridge. The road bridges 10 ₁ and 10 ₂ maintain a play space 11 and a seam portion. Is formed, and a first step portion 12 on the road side and a second step portion 13 on the seam side are formed on this. These steps 12 and 13
First, the asphalt 14 paved on the road bridge is cut to form the respective step portions 12 and 13. Then, the backup material 16 and the seal material 15 are fitted into the play space 11 as a water leakage preventing material, and this is bonded to the surface of the play space 11. On the other hand, the surface of each step 12, 13 is filled with a resin concrete using a mold, and then the mold is removed to form the smooth steps 12, 13.

FIG. 3 shows the pavement structure of the joint portion obtained by the pavement construction method of the present invention. The crossover plate 1 embedded in the pavement member on the first step portion 12 across the play gap 11 is shown. Are abutted against each other and the pavement member is fitted into the joint portion. In this case, the adhesive is applied to the surfaces of the step portions 12 and 13 in advance. Then, the fixed pre - DOO 3,3 although not shown, fitted to a road bridge 10 _1, 10 volts rises from _2, is screwed with a nut. After that, an adhesive is further applied to these surfaces, and then asphalt that forms the surface layer 14 is applied to complete the pavement structure of the joint portion.

[0020]

Industrial Applicability The present invention has the above-mentioned structure and uses the paving member unitized by integrating all the necessary members in a factory or the like. Operations such as cutting, pasting, and assembling of the members are not required, and the quality of the seam members is improved and improved accordingly. The pavement work is completed simply by arranging this at the seam portion of the road and performing the pavement work, which is a great advantage that the construction period required for the pavement work is shortened.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of a paving member of the present invention.

FIG. 2 is a cross-sectional view of a road end at which the pavement member of the present invention can be actually used.

FIG. 3 is a cross-sectional view showing a pavement structure of a joint portion obtained by the pavement construction method of the present invention.

[Explanation of symbols]

1 ... migration plate, 2 ... vulcanized rubber layer, 3 ... fixed plate, 4 ... pavement base layer, 5 ... plastic deformation layer, 10 ₁ , 10 ₂ ... road bridge, 11 ... Yuma, 12 ... 1st step, 13 ... 2nd step, 14 ... Bridge surface pavement layer, 15 ... Seal material, 16 ... Backup material.

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[Procedure amendment]

[Submission date] January 10, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

[0008]

DISCLOSURE OF THE INVENTION The present invention is directed to a vulcanized rubber layer surrounding a transition plate spanning a free space of a seam portion of a road, a pavement base layer on an upper surface, and a plastic deformation layer on a lower surface. And pavement members that are integrated with each other are previously formed into a cassette,
The present invention relates to a pavement construction method for a seam portion of a road or the like characterized by arranging this over a play space of a seam portion of a road and then paving the surface asphalt on the surface of the paving member together with the surface of the road.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

As a particularly specific construction method, the end pavement asphalt of the left and right roads is cut toward the seam to form two step portions, and pavement members that match these two step portions are fitted. The pavement method comprises a vulcanized rubber layer in which a transition plate is arranged corresponding to the step on the seam side, and a pavement such as an asphalt layer or a vulcanized rubber layer laminated on the surface. The base layer and the plastically deformable layer laminated on the lower surface of the step portion are laminated and integrated to form a paving cassette, and a backup material and an elastic seal are set in the free space of the seam portion of the road end, and then 2 Smooth the two steps with resin concrete, apply an adhesive to this surface, and then fit the cassette paving member, and fix both ends of the paving member to the step on the road side. Those relating to pavement construction method at the seam portion of a road or the like, which comprises pavement surface in the same surface asphalt layer. As the pavement base layer, for example, an asphalt layer or a vulcanized rubber layer is adopted.

Claims (2)

[Claims] 1. A vulcanized rubber layer which surrounds a migration plate which is laid across a play in a seam portion of a road, a base asphalt layer on an upper surface, and a plastically deformable layer on a lower surface, which are integrally formed. A pavement member that has been formed into a cassette is formed in advance, the pavement member is arranged over a gap between joints of the road, and then the surface asphalt is paved on the surface of the pavement member together with the surface of the road. Pavement method at seams. 2. A pavement construction method in which an end pavement asphalt on the left and right roads is cut toward a seam to form two stepped portions, and a pavement member that matches the two stepped portions is fitted therein. The pavement member is laminated with a vulcanized rubber layer on which a crossing plate is arranged corresponding to the step on the seam side and a fixed plate corresponding to the step on the road side, and on the upper surface thereof. The base asphalt layer and the plastically deformable layer laminated on the lower surface of the stepped portion are laminated and integrated to form a paving cassette, and a backup material and an elastic seal are provided between the ends of the road at the play of the seam. After setting, then the two stepped portions are smoothed with a resin concrete, an adhesive is applied to the surface, and then the pavement member formed into the cassette is fitted, and both ends of the pavement member are stepped on the road side. Fixed in place, then these surfaces identical Pavement method at the seams of roads, which is characterized by paving with the asphalt layer on the surface.