JP2001107304A - Laying structure of drainable pavement plate member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the time required for the construction of a drainable pavement on a wide road (4 m or more) and to simplify the construction. SOLUTION: A plurality of synthetic resin drainable pavement plate members P comprising a bottom plate on which a plurality of upper plates extending in one direction and a strut for supporting each upper plate are formed are laid continuously in the lateral direction of a road, and the respective ends of the mutually adjacent drainable pavement plate members P are bonded together by thermal fusion. The respective ends of the mutually adjacent drainable pavement plates P are bonded together through a joint 20 having an insert part of the shape according to the sectional profile of the draining cavity of each plate member P. Otherwise, the respective ends of the mutually adjacent drainable pavement plate members P are bonded together through a sheet stuck to the bottom plate reverse sides of the drainable pavement plate members.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage pavement laying structure which is laid under an asphalt layer in a drainage pavement having a two-layer structure.

[0002]

2. Description of the Related Art Drainable pavement has attracted attention as a pavement that copes with traffic environments such as noise reduction of traffic vehicles and safe driving performance in rainy weather, and its construction results have been steadily increasing. Recently, it has also been applied to pavement of elevated roads such as expressways.

[0003] Drainable pavement has a structure in which a large amount of coarse aggregate is contained in a pavement such as asphalt to form an appropriate amount of voids inside the pavement.
The clogging due to dust and the like in the gap portion of the pavement in service, the collapse of the gap caused by the traveling vehicle, and the like occur, thereby deteriorating the functionality. Therefore, in order to improve the functionality of the drainage pavement and extend the service life, the pavement such as asphalt is made into a thin layer, and a special member for improving drainage performance and function recovery is laid below it. A drainage pavement having a layered structure has been proposed (Papers for the Second Pavement Engineering Lecture; December 1997).

In such a drainage pavement having a two-layer structure, a plurality of upper plates for supporting an upper asphalt layer and columns for supporting the respective upper plates are formed on a bottom plate, and a drainage gap is provided between the columns. Is a method of laying a synthetic resin drainage pavement plate made of resin on a PC floorboard constructed on a road, laying asphalt on the drainage pavement plate, and finishing with a roller. Is adopted.

[0005] The drainage pavement plate member used for the drainage pavement having a two-layer structure retains its shape under a temperature condition of -30 ° C to 200 ° C and lays asphalt (temperature: 180 ° C to 200 ° C, load: linear pressure 10k
g / mm), it is required that the shape can be maintained, and therefore, a high-strength acrylic-modified high-impact polyvinyl chloride or the like is used as a synthetic resin.

[0006]

By the way, in the drainage pavement having the two-layer structure as described above, as a plate member for drainage pavement, a molded product having an elongated upper plate / post is used. Profile is generally used, and a method is adopted in which the drainage pavement plate-like member is laid so that the longitudinal direction (the direction in which the drainage void extends) is along the width direction of the road. However, the length of the drainage pavement plate is limited to 4 m or less due to transportation regulations (Road Traffic Law). Therefore, when paving wide roads, the length of the It is necessary to arrange the drainage pavement plate members and join the drainage pavement plate members to each other, but such construction is not easy and it takes a lot of time It is.

The present invention has been made in view of such circumstances, and when laying a drainage pavement having a two-layer structure on a wide road (4 m or more), simplification of the construction and time reduction are required. An object of the present invention is to provide a laid structure of a drainable pavement plate-like member that can be measured.

[0008]

SUMMARY OF THE INVENTION The laying structure of the present invention comprises a plurality of synthetic resin drainage pavements having a plurality of upper plates extending in one direction and a column supporting each of the upper plates formed on a bottom plate. The plate-shaped member for use is laid in a state where the upper plate and the support are continuous in a predetermined direction, and the ends of the plate-shaped member for drainable pavement adjacent to each other are joined by heat fusion. Characterized.

In the construction structure according to the present invention, the ends of the drainable pavement plate-shaped members connected in the width direction of the road are joined to each other by butt fusion using a special fusion machine as described later. Therefore, the desired bonding strength can be obtained by appropriately setting the fusion pressure (butting pressure). In addition, by using a special welding machine, it becomes possible to finish the joining of the drainable pavement plate-like member in a short time.

The laying structure of the present invention is characterized in that a plurality of synthetic resin drainage pavement plate-like members each having a plurality of upper plates extending in one direction and a column supporting the respective upper plates formed on a bottom plate, The upper plates and the columns are laid in a state of being continuous in a predetermined direction, and the ends of the plate members for drainable pavement adjacent to each other match the sectional shape of the drainage gap formed between the columns. Are characterized by being joined to each other by a joint having an insertion portion having a bent shape.

[0011] According to the construction structure of the present invention, the end of the drainable pavement plate-like member is connected only by inserting a joint into the drainage gap of the drainage pavement plate-like member continuously provided in the width direction of the road. Joining can be performed easily and in a short time.

Here, if the joint used in the laying structure of the present invention has a U-shape with an open top, and the joint itself has a drainage function, the joint of the plate member for drainable pavement can be provided. The problem that the flow of drainage stops and the drainage property is impaired does not occur, and sufficient drainage property can be ensured.

As the material of the joint used in the laying structure of the present invention, various materials such as a metal and a synthetic resin can be cited, but bending and vibration acting on the joint of the drainage pavement plate-like member can be mentioned. It is preferable to use a synthetic resin in consideration of the influence of the above.

The laying structure of the present invention is characterized in that a plurality of synthetic resin drainage pavement plate-like members, each having a plurality of upper plates extending in one direction and a column supporting each of the upper plates formed on a bottom plate, The upper plates and the columns are laid in a continuous state in a predetermined direction, and the ends of the drainable pavement plate members adjacent to each other are stuck to the bottom plate back surface of the drainage pavement plate members. Characterized by being joined together by sheets.

According to the construction structure of the present invention, the sheet is attached to the back surface of the end of the drainable pavement plate member continuously provided in the width direction of the road, and the ends of the drainage pavement plate member are connected to each other. , The joining operation can be completed easily and in a short time.

The sheet used in the construction structure of the present invention is not particularly limited as long as the sheet has a desired joining strength. However, bending and vibration acting on the joining portion of the drainage pavement plate-like member are not limited. In consideration of the influence of the adhesive and the ease of sticking, a resin sheet having a certain degree of flexibility is preferable. In consideration of obtaining higher bonding strength, it is preferable to use a sheet made of the same material as the drainable pavement plate-like member. For example, when the drainage pavement plate member is an acrylic-modified high-impact polyvinyl chloride sheet, it is preferable to use an acrylic-modified high-impact polyvinyl chloride sheet.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

First, a drainable pavement plate member used in the laying structure of the present invention will be described with reference to FIGS.

The drainage pavement plate-like member P shown in FIGS. 1 and 2 is a molded product (profile) formed by extruding an acrylic-modified high-impact polyvinyl chloride, and has a plurality of upper plates supporting an asphalt layer laid thereon. 1 and a support 2 for supporting each of the upper plates 1 are formed on a bottom plate 3.
A gap C for drainage is formed between them. Further, the drainage pavement plate-like member P has a female connecting portion 4 and a male connecting portion 5 at both ends of the bottom plate 3 in a short direction (a direction orthogonal to the column 2).
Are integrally formed, and a plurality of profiles can be mutually connected using the male / female connecting portion. The drainage pavement plate member P shown in FIGS.
Then, in order to obtain the largest possible gap C between the columns 1,
The upper plate 1 and the support 2 are processed into a T-shaped cross section.

In the drainage pavement plate member P having the shape shown in FIGS. 1 and 2, the dimensions of each part are the width w of the upper plate 1.
1 = 17 mm, wall thickness t1 = 5 mm, pitch p2 of column 2
= 19.5 mm, height h21 of support column 2 = 8 mm, h22 = 5
mm, thickness t2 = 5 mm, thickness t3 of bottom plate 3 = 3.5 m
m, W = 200 mm, and length L = 4000 mm (full size).

Next, an embodiment of the laying structure of the present invention will be described. First, a dedicated fusing machine used for joining the drainable pavement plate member P in this embodiment will be described with reference to FIGS. 3 and 4.

The welding machine 10 shown in FIGS. 3 and 4 has a pair of clamps 11 and 12 for gripping the ends of the drainable pavement plate-like member P to be joined, and a gap between the pair of clamps 11 and 12. And a plate-shaped heater 13 to be arranged. The pair of clamps 11 and 12 are freely movable in the directions approaching and separating from each other, and can abut the ends of the drainage pavement plate-like member P grasped. The heater 13 is rotatably supported on a shaft 14, and is used between a pair of clamps 11 and 12, and a pair of clamps 1.
1 and 12 can be selectively arranged at two positions of a standby position which do not interfere with each other.

In the fusing machine 10 shown in FIGS. 3 and 4, first, the ends of the drainable pavement plate-like member P to be connected are arranged on the pair of clamps 11 and 12, and the two are connected. With the respective ends of the upper plate 1, the support 2, and the bottom plate 3 of the plate member P being aligned with each other, clamping is performed to grip the ends of the drainable pavement plate member P with the clamps 11, 12. Then, the pair of clamps 11 and 12 are moved (retracted) in a direction away from each other, and wait at that position. Next, a heater 13 is provided between the pair of clamps 11 and 12.
After the clamps 11 and 12 are moved forward and the respective ends of the drainage pavement plate-like member P are heated in a non-contact manner by the heater 13, the heater 13 is moved to the standby position.
The drainage pavement plate-like member P can be joined by a procedure in which the pair of clamps 11 and 12 are advanced, and the ends of the drainage pavement-like plate member P are butted and fused.

In the fusing machine 10 described above, the fusing pressure (butting pressure) is set to a target value (for example, 5 kgf / cm).
^{2 to} 10 kgf / cm ² ). Further, the end of the drainage pavement plate-like member P is heated to a temperature (180 ° C. to 2 ° C.) suitable for fusing acrylic-modified high-impact polyvinyl chloride.
00 ° C.).

This embodiment is intended for pavement on a 6 m road, and a full-size (L = 4000 mm) drainage pavement plate-like member P according to the width (6 m) of the road. A required number of drainable pavement plate members P each having a length cut to L = 2000 mm are prepared by the required number, and two types of drainage pavement plate members P are provided as shown in FIG. 3 and FIG. It is set in the fusing machine 10, and the ends of the drainable pavement plate-like members P are thermally fused to each other in the manner described above.

At this time, the fusion temperature is set at 180 ° C. to 200 ° C.
° C, the fusing pressure is 5 kgf / cm ² to 10 kgf / cm ²
And fusion was performed. Under these conditions, FIG.
When the fusion was performed using the special fusion machine 10 shown in FIG. 4, the bonding was completed in a short time of about 30 seconds to 150 seconds.
Then, asphalt (density: 2 g / cm ³ ) was laid with a thickness of 4 cm on the drainage pavement plate member P that had been subjected to the fusion bonding, and after being compacted with a roller, the state of the bonded portion was observed. No detachment or the like of the member was observed, and a favorable bonding state was maintained.

The above fusion work may be performed on a road (on a PC floorboard) on which drainage pavement is constructed.
In consideration of the work space and work efficiency, etc., a fusing work place is secured on the side of the construction road, etc., and the 6 m long drainage pavement plate-like member P that has been fused at that place is placed on the PC floorboard. It is more preferable to adopt a method of laying the sheets sequentially.

FIG. 5 is a view schematically showing another embodiment of the laying structure of the present invention. In this embodiment, 6 m
For pavement on roads, the width of the road (6m)
In accordance with, a required number of full-sized (L = 4000 mm) drainable pavement plate members P and a plurality of drainage pavement plate members P whose length is cut to L = 2000 mm are prepared.

In this embodiment, nine joints 20 as shown in FIG. 6 are prepared for each set of drainage pavement plate members P to be joined. The joint 20 is a molded product of the same or a different resin as the drainage pavement plate-like member P, and has a U-shaped vertical cross-sectional shape whose upper part is open. The joint 20 is formed to have a width of 13 mm and a height of 4 mm, and has a shape and a size that can be inserted into the drainage space C of the drainable pavement plate-like member P.

In this embodiment, as shown in FIG. 5, a drainable pavement plate-like member P of L = 4000 mm,
= 2000 mm and the drainage pavement plate-shaped member P are continuously provided along the width direction of the road. Laying is performed by a procedure of joining the ends of the drainable pavement plate-like member P to each other. Such joining is performed by inserting nine joints 20 into one set of drainage pavement plate-like members P, and the time required for the insertion of the nine joints is 30 seconds. Further, asphalt (density: 2 g / cm ³ ) was laid with a thickness of 4 cm on the joined drainage pavement plate-like member P, pressed with a roller, and the state of the joint was observed. No detachment was observed, and a good bonding state was maintained.

In the laying structure shown in FIG. 5, the joints 20 are inserted into all the gaps C of the drainage pavement plate-like member P, and the joining is performed.
The places where 0 is inserted may be thinned out.

FIG. 7 is a plan view showing another example of the joint used for the laying structure of the present invention. The joint 21 shown in FIG. 7 is a molded product of the same or different resin as the drainage pavement plate member P, and has nine insertion portions 2 on both sides of the central base portion 21b.
.. 21a are arranged in a comb-teeth shape. Each insertion part 2
As shown in FIG. 8, 1a has a U-shaped cross section with an open top. The dimensions of each part of the insertion part 21a are as follows.
It is 13 mm wide x 4 mm high x 50 mm long.
It can be inserted into the drainage space C of the drainable pavement plate member P. Further, the arrangement pitch of the insertion portions 21a is the same as the pitch (1
9.5 mm).

When the two drainage pavement plate members P are joined by using such a joint 21, the drainage pavement plate member P having L = 4000 mm and the drainage pavement plate member P having the length L = 4000 mm are formed in the same manner as in the previous embodiment. , L = 2000 mm and a drainable pavement plate-like member P are continuously provided along the width direction of the road, and the insertion portion 21a of the joint 21 is inserted into a gap C of each drainage pavement-like plate member P. Can be performed by the following procedure. In the case where the joint 21 shown in FIG. 7 is used, the nine insertion portions 21a,.
At the same time, there is an advantage that the joining time can be further shortened.

FIG. 9 is a view schematically showing another embodiment of the laying structure of the present invention. In this embodiment, 6 m
For pavement on roads, the width of the road (6m)
In accordance with, a required number of full-sized (L = 4000 mm) drainable pavement plate members P and a plurality of drainage pavement plate members P whose length is cut to L = 2000 mm are prepared. Also, an acrylic-modified high impact polyvinyl chloride sheet (0.7 mm thick x 200 mm wide x 200 mm long) is prepared, and a double-sided tape (manufactured by Sekisui Chemical Co., Ltd., product name: Double Tack ♯5782 Width 200 m) on one side
m) is pasted.

In this embodiment, as shown in FIG. 9, a drainable pavement plate-like member P having L = 4000 mm is provided.
A drainage pavement plate member P of L = 2000 mm is continuously provided along the width direction of the road, and the two drainage pavement plate members P are positioned by abutting ends thereof. An acrylic-modified high-impact polyvinyl chloride sheet 30 is attached to the back surface of the bottom plate 3 of the paving plate member P via a double-sided tape 31 to join the ends of the drainable paving plate member P to each other.

It should be noted that the time required for bonding using the above sheets was about 10 seconds. In addition, asphalt (density 2) is placed on the joined drainage pavement plate-like member P.
g / cm ³ ) was spread with a thickness of 4 cm, pressed with a roller, and observed for the state of the joined portion. As a result, no detachment or the like of the member was observed, and a favorable joined state was maintained.

FIG. 10 is a view schematically showing still another embodiment of the laying structure of the present invention. Also in this embodiment, the full size (L = 4) is set according to the width (6 m) of the road.
000 mm), and a length L =
A required number of drainage pavement plate members P cut to 2000 mm are prepared. In addition, acrylic modified high impact polyvinyl chloride sheet (thickness 0.7 mm × width 200 mm
X length 200 mm) and a cyanoacrylate-based instant adhesive suitable for bonding acrylic-modified high impact vinyl chloride.

In this embodiment, as shown in FIG. 10, the drainage pavement plate member P of L = 4000 mm is used.
And a drainage pavement plate-like member P of L = 2000 mm are continuously provided along the width direction of the road, and the ends of the two drainage pavement-side plate members P are positioned by abutting each other. On the back surface of the bottom plate 3 of the drainage pavement plate-like member P,
By applying a cyanoacrylate-based instant adhesive 32 and adhering an acrylic-modified high-impact polyvinyl chloride sheet 30, the ends of the drainage pavement plate-like member P are joined to each other.

The time required for bonding using the above sheets was about 20 seconds. In addition, asphalt (density 2) is placed on the joined drainage pavement plate-like member P.
g / cm ³ ) was spread with a thickness of 4 cm, pressed with a roller, and observed for the state of the joined portion. As a result, no detachment or the like of the member was observed, and a favorable joined state was maintained.

[0040]

As described above, according to the laying structure of the present invention, a plurality of drainage pavement plate members are connected in series, and ends of adjacent drainage pavement plate members are connected to each other. Since the structure is joined by heat fusion, it is possible to reduce the time required for constructing the drainage pavement on a wide road and to simplify the construction.

According to the laying structure of the present invention, a plurality of plate members for drainage pavement are connected in series, and the ends of the plate members for drainage pavement adjacent to each other are separated from each other by the drainage of each plate member. Since it is a structure joined by a joint having an insertion portion having a shape corresponding to the cross-sectional shape of the use space, it is possible to shorten the time and simplify the construction of drainage pavement on a wide road.

According to the laying structure of the present invention, a plurality of drainage pavement plate members are connected in series, and ends of the drainage pavement plate members adjacent to each other are connected to each other. Since the structure is joined by a sheet attached to the back surface of the bottom plate of the member, it is possible to reduce the time and simplification of the construction of the drainage pavement on a wide road.

[Brief description of the drawings]

FIG. 1 is a perspective view of a drainable pavement plate-like member used in the laying structure of the present invention.

FIG. 2 is a front view of the drainage pavement plate member.

FIG. 3 is a front view of a fusing machine used for constructing the laying structure of the present invention.

FIG. 4 is a side view of the welding machine.

FIG. 5 is a plan view schematically showing another embodiment of the laying structure of the present invention.

FIG. 6 is a front view (A), a side view (B), and a plan view (C) showing an example of a joint used for the laying structure of the present invention.

FIG. 7 is a plan view showing another example of the joint used for the laying structure of the present invention.

FIG. 8 is a sectional view taken along line XX of FIG. 7;

FIG. 9 is a plan view schematically showing another embodiment of the laying structure of the present invention.

FIG. 10 is a plan view schematically showing still another embodiment of the laying structure of the present invention.

[Explanation of symbols]

 P Drainable pavement plate-like member 1 Top plate 2 Prop 3 Bottom plate 4 Female connection 5 Male connection C Cavity for drainage 10 Fusing machine 11, 12 Clamp 13 Heater 20 Joint 21 Joint 21a Insertion part 30 Acrylic modified height Impact polyvinyl chloride sheet 31 Double-sided tape 32 Cyanoacrylate instant adhesive

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Koji Maruyama, Inventor 75, Nojiri, Ritto-cho, Kurita-gun, Shiga Prefecture Sekisui Chemical Co., Ltd. (72) Inventor Masayuki Mizukami 75, Nojiri, Kurito-cho, Kurita-gun, Shiga Prefecture Inside Sekisui Chemical Co., Ltd. (72) Inventor Yuki Sen 2-2 Sachisui Chemical Industry Co., Ltd. Inventor Eizaburo Hirotsu 7-3-7 Roppongi, Minato-ku, Tokyo Toa Road Industry Co., Ltd. (72) Inventor Masayuki Fujita 1-4-17 Motomachi, Naniwa-ku, Osaka City In Toa Road Industry Co., Ltd. (72) Inventor Naoki Inaoka 1-4-17 Motomachi, Naniwa-ku, Osaka-shi Toa Road Industry Co., Ltd. F term (reference) 2D051 AA03 AA06 AA08 AG01 AG11 AH02 DA11 DA13 EA02

Claims (3)

[Claims] 1. A plurality of drainage pavement plate members made of synthetic resin having a plurality of upper plates extending in one direction and a column supporting the respective upper plates formed on a bottom plate. Are laid in a continuous state in a predetermined direction, and the ends of the drainable pavement plate-like members adjacent to each other are joined by heat fusion. Laying structure. 2. A plurality of drainage pavement plate members made of synthetic resin having a plurality of upper plates extending in one direction and a column supporting the respective upper plates formed on a bottom plate. Are laid in a state where they are continuous in a predetermined direction, and the ends of the plate members for drainage pavement adjacent to each other are inserted into a shape corresponding to the cross-sectional shape of the drainage gap formed between the columns. A laying structure for a drainable pavement plate-like member, which is joined to each other by a joint having a portion. 3. A plurality of synthetic resin drainage pavement plate-like members each having a plurality of upper plates extending in one direction and a column supporting the respective upper plates formed on a bottom plate. Are laid continuously in a predetermined direction, and the ends of the drainable pavement plate members adjacent to each other are joined to each other by a sheet adhered to the back surface of the bottom plate of the drainage pavement plate members. A laying structure for a drainable pavement plate-like member, which is characterized in that: