JP3322360B2 - Paving method at seams such as roads - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pavement method at a joint such as a road represented by a road bridge. More specifically, a pavement member having a special structure is buried in the joint and the upper part is continuously connected. The present invention relates to a pavement method in which a joint is paved to eliminate seams.

[0002]

2. Description of the Related Art Conventionally, at a joint of a road bridge, there is provided a crossover plate for supporting a load across a play space, and a slide sheet for dispersing the left, right, up and down displacement of the play space on the bridge plate.
There is known a construction method in which layers are stacked and the upper surface is continuously paved.

[0003] The joints of such road bridges must maintain the flatness and continuity of the road surface while absorbing deformation due to temperature changes and the like of the left and right road bridges. Direct damage can cause severe damage, and wear can easily lead to steps, which can cause unpleasant noise and vibrations due to vehicle travel, and often cause phenomena such as water leaking down the road from this part. Was.

[0004] In this kind of pavement method, road traffic is regulated, and it is necessary to complete the construction within a very limited time. Construction work time is prolonged,
In addition, problems have been pointed out, such as inconsistent quality due to changes in the working environment. That is, since the various members constituting these joints are bonded and assembled for each member at the work site, the work time is prolonged, and the finished product is also liable to have variations in quality.

[0005]

Another major problem is that a gap is provided at the joint end of the road bridge in preparation for expansion and contraction of the road bridge, so that a crossover plate for supporting the load of the vehicle is provided here. However, stress is concentrated at one location due to the expansion and contraction of the bridge body and the vertical displacement of the end of the girder, which often causes cracks on the pavement. In order to disperse the internal stress, a slip layer is provided between the end of the bridge and the pavement material. However, the vibration generated when the vehicle passes through the wheel tends to cause cracks in the pavement material. There is.

The present invention proposes a new pavement method in view of the above-mentioned drawbacks of the prior art. A crossover plate provided at an end of a road is a source of vibration when passing a wheel. It is intended to be fixed by an elastic body so that it does not become, and furthermore, each member constituting the joint portion is made into a cassette in advance to obtain a uniform member, and furthermore, it is intended to shorten the construction time and improve the construction quality. .

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and in particular, to provide a pavement member at a joint portion of a road or the like in which variations in quality are completely eliminated.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a vulcanized rubber layer surrounding a crossover plate which is passed over a play at a seam of a road, and a pavement disposed on an upper surface of the vulcanized rubber layer. A pavement member in which a base layer and a plastically deformable layer arranged on the lower surface of the vulcanized rubber layer are formed in advance and made into a cassette,
A pavement method at a seam portion of a road or the like, which comprises disposing the cassette-shaped pavement member across a play area of a seam portion of a road, and thereafter forming a surface layer on the surface of the pavement member together with the surface of the road. It depends on.

[0009] In particular, as a specific concrete method, asphalt pavement at the end of the left and right roads is cut toward the seam.
A pavement method in which two step portions are formed, and a pavement member matching the two step portions is fitted into the step portion, wherein the pavement member is a crossover arranged corresponding to the step portion on the joint portion side. A vulcanized rubber layer surrounding both the plate and the fixed plate arranged corresponding to the step on the road side; a pavement base layer disposed on the upper surface of the vulcanized rubber layer; A plastic deformation layer arranged on the surface is integrated into a cassette to form a cassette. First, a backup material and a sealing material are set during play of a seam of a road, and then the surface of the two steps is made of resin concrete. An adhesive is applied to the surfaces of the smoothed and smoothed two steps, and then, the cassette-made pavement members are fitted into the two steps, and both ends of the pavement members are connected to road-side steps. And finally the pavement along with the road surface Those relating to pavement construction method at the seam portion of a road or the like and forming a surface layer of the same asphalt layer on the surface of the wood.

[0010]

The present invention has the above-described configuration, and the most significant feature of the present invention is that it uses a pavement member in which all of these components are integrated and made into a cassette. In addition, the quality is always constant, and this cassette-made member can be used as it is at the construction site, thereby shortening the construction time.

Referring to each configuration, the crossover plate straddles the play of a joint such as a road, receives a load of a vehicle or the like passing on the road, and attaches it to both sides of the joint of the road or the like. It has the effect of dispersing.

A vulcanized rubber layer is formed around the crossover plate to prevent water from leaking from a joint portion and to prevent a crack from being generated even when a road bridge is repeatedly expanded and contracted. It is. In other words, by arranging the plate in the vulcanized rubber layer, the load acts locally through the rubber layer, the concentrated load is dispersed, and the occurrence of bending and distortion is suppressed, This makes it possible to hold it at an appropriate position. By making the ends of the crossover plate trapezoidal or corrugated finger-shaped, the contact surface is widened, and a good effect that the vehicle does not move up and down suddenly even if a step is formed at the road joint. Bring.

Preferably, a step (offset) is formed in the thickness direction between the transition plate and the fixing plate embedded in the vulcanized rubber layer, and the stress generated in the vulcanized rubber layer is reduced. Causes shear deformation to be absorbed.

The vulcanized rubber layer is a backup layer of a pavement base layer and a plastic deformation layer. A pavement base layer having a buffering property is disposed on the upper surface of the vulcanized rubber layer, and the vehicle passing on a road is provided. Is buffer-dispersed here to absorb deformation and stress. A plastically deformable 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 the expansion and contraction of the road, and the displacement of the road.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a pavement member according to the present invention. FIG. 1 is a sectional view of an embodiment of the pavement member of the present invention. In the figure, reference numeral 1 denotes a transfer plate, and reference numeral 2 denotes a vulcanized rubber layer surrounding the transfer plate 1. At both ends of the vulcanized rubber layer 2, fixed plates 3, 3 are embedded.
The crossover plate 1 and the fixed plates 3, 3 are arranged corresponding to the step portions described later.

Then, in contact with the upper surface of the vulcanized rubber layer 2, goose asphalt is applied to the pavement base layer 4 of the asphalt layer.
Further, on the back side of the vulcanized rubber layer 2, a bitumen sheet is laminated as a plastic deformation layer 5.

In the pavement member of the present invention, these members are laminated to form a cassette, and the width W and the length (front and back of the sheet) of the cassette-formed joint member are set at the factory. It is formed in a certain thing.

[0018] Figure 2, such paving member of the present invention is a cross-sectional view of a roadside when is subjected to practical use in road bridges, road bridges 10 _1, 10 ₂ seam portion maintains a Joint Gap 11 This is formed with two steps of a first step 12 on the road side and a second step 13 on the joint side. The steps 12 and 13 are formed by first cutting asphalt paved on a road bridge to form the steps 12 and 13, respectively. Then, a backup material 16 and a sealing material 15 are fitted into the play space 11 as a water leakage prevention material, and this is adhered to the surface of the play space 11. On the other hand, resin concrete is filled into the surfaces of the steps 12 and 13 using a mold, and then the mold is removed to form smooth steps 12 and 13.

FIG. 3 shows a pavement structure of a seam obtained by the pavement method according to the present invention. The crossover plate 1 embedded in a pavement member is provided on a first step portion 12 across a play space 11. And the pavement member is fitted into the joint. In this case, an adhesive is applied to the surfaces of the steps 12 and 13 in advance. Although not shown, the fixing plates 3 and 3 are fitted to bolts rising from the road bridges 10 ₁ and 10 ₂ , for example, and screwed by nuts. Thereafter, an adhesive is further applied to these surfaces, and asphalt for forming the surface layer 14 is applied to complete the pavement structure at the joint.

[0020]

The present invention has the above-described structure, and uses a pavement member unitized by integrating all necessary members at a factory or the like. Operations such as cutting, attaching, and assembling the members are not required, and the quality of the joint members is constant and improved accordingly. The pavement work can be completed only by arranging the pavement work at the seam portion of the road and performing the pavement work, and there is a great merit that the work period required for the pavement work is shortened.

[Brief description of the drawings]

FIG. 1 is a sectional view of an embodiment of a pavement member according to the present invention.

FIG. 2 is a sectional view of a road edge where the pavement member of the present invention is used for actual use.

FIG. 3 is a cross-sectional view showing a pavement structure of a seam obtained by a pavement method according to the present invention.

[Explanation of symbols]

1) transition 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 ‥‥ First Stage,
13 second stage, 14 surface layer, 15 sealing material,
16 ‥‥ backup material.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-155403 (JP, A) JP-A-2-49802 (JP, A) JP-A-3-110206 (JP, A) JP-A-6-106 280213 (JP, A) JP-A-61-191703 (JP, A) JP-A-1-167406 (JP, U) JP-A 63-61415 (JP, U) JP-A 50-22482 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) E01C 11/02

Claims (2)

(57) [Claims] 1. A vulcanized rubber layer surrounding a crossover plate which is bridged across a play area of a road joint, a pavement base layer disposed on an upper surface of the vulcanized rubber layer, and a vulcanized rubber layer A pavement member integrally formed with a plastically deformable layer disposed on the lower surface is formed in advance to form a cassette, and the pavement member formed into a cassette is disposed across a play area of a seam of a road, and then the surface of the road is formed. A pavement method at a joint such as a road, wherein a surface layer is formed on the surface of the pavement member. 2. A pavement method in which asphalt asphalt at the end of the left and right roads is cut toward a joint to form two steps, and a pavement member corresponding to the two steps is fitted into the steps. In addition, the pavement member includes a vulcanized rubber layer surrounding both the crossover plate arranged corresponding to the seam-side step and the fixing plate arranged corresponding to the road-side step, and the vulcanized rubber layer. A pavement base layer disposed on the upper surface of the vulcanized rubber layer and a plastic deformation layer disposed on the lower surface of the vulcanized rubber layer are integrally formed into a cassette. Set the backup material and seal material, then
Smooth the surface of the two steps with resin concrete,
An adhesive is applied to the surfaces of the two smoothed steps, and then the cassette-shaped pavement member is fitted into the two steps, and both ends of the pavement member are fixed to the road-side steps. And finally, forming a surface layer of the same asphalt layer on the surface of the pavement member together with the surface of the road.