JP5415240B2 - Precast concrete paving slab that can be used on both sides and its installation method - Google Patents

Description

The present invention relates to a precast concrete pavement plate that can be used on both sides for pavement and the like, and an installation method for forming a pavement surface using the pavement plate.

Conventionally, as a rapid repairing method for concrete pavement, a pavement plate (for example, Patent Document 1) that lays concrete such as a precast pavement plate and connects these pavement plates after revealing the roadbed is proposed. An arc-shaped communication hole that is communicated between the joint end faces of the two concrete pavement plates that are connected to each other and that has both ends opened to the surface side of the concrete pavement plate, and straddles the two concrete pavement plates in the communication hole. The arc-shaped connecting rod is inserted, and the connecting hole is filled with a filler, and the connecting rod is embedded and fixed in the communicating hole.

In addition, an airtight packing is fitted to the joint end surface of the concrete pavement plate to be joined, and each horizontal hole is provided in the end surface of the concrete pavement plate, and the joint rebar is stored in the axial direction of the horizontal hole. The concrete pavement plate is joined so that the opening of the horizontal hole of the concrete pavement plate coincides with the back, and the compressed reinforcing air is blown through the opening to move the rebar. For example, Patent Document 2) has been proposed.

In addition, a through hole having a female screw portion is formed in the pavement plate, a jackup tool is screwed and rotated in the female screw portion, the pavement plate is moved up and down to a predetermined height, and the filling formed on the pavement plate A repair method and a paving plate (for example, Patent Document 3) in which a filler is filled from the through hole for the material to the back side of the paving plate have been proposed.

In the above prior art, since only one side of the pavement plate is used, the construction cost is particularly high in the case of a precast pavement plate that is a high-quality concrete product.

In consideration of such problems, after the front side pavement surface of the pavement plate reaches the service limit due to damage such as wear, the pavement plate is reversed and the back side pavement surface is laid on the roadbed again as the road surface, etc. A method for installing a precast paving plate that can be used on both sides has been proposed (for example, Patent Document 4).

JP 56-167005 A JP-A 61-261502 JP-A 61-169504 JP-A-3-194004

With the thing of the said patent document 4, the reduction of the total cost including the construction cost at the time of repair and maintenance management can be aimed at, and the construction period can be shortened significantly.

By the way, in patent document 4, although a pavement plate can be reversed and used, the connection structure of pavement plates was not considered. Moreover, in the said patent documents 1 and 2, although paving plates can be couple | bonded, even if it tried to invert and use, paving plates were not able to be couple | bonded after inversion.

Therefore, in view of the above-described problems, the present invention can reduce the total cost including the construction cost and maintenance management, and can greatly shorten the work period. An object of the present invention is to provide a precast concrete paving slab that can be used on both sides, and an installation method thereof.

In order to achieve the above object, the invention according to claim 1 is a precast concrete pavement plate that can be used on both sides in which a pavement surface is formed on each of the front side and the back side of the pavement plate. A coupling structure for interposing coupling reinforcing bars, wherein the coupling structure is provided on one side of the pavement plate and opened to the joint end surface; The other hole opened in the end surface, the one hole of the paving plate connected to each other, the connecting reinforcing bar inserted across the other hole, and the one hole and the other hole communicate with each other. A filling hole for a filler, and a filler filled in the one and the other holes from the filling hole, the coupling structure for the front side in which the filling hole communicates with the front side, and the filling hole communicates with the back side Front for back side Characterized in that it comprises a coupling structure.

In the invention according to claim 2, the one hole of the front-side coupling structure and the one hole of the back-side coupling structure are juxtaposed, and the other hole of the front-side coupling structure; The other hole of the coupling structure for the back side is provided in parallel.

The invention according to claim 3 is characterized in that a hanger is provided on the coupling end surface of the pavement plate, and the hanger is provided on the inner side of the coupling end surface.

Further, the invention according to claim 4 is the installation method of the precast concrete pavement plate that can be used on both sides according to any one of claims 1 to 3, wherein the pavement plate is laid on a roadbed and the front side is used. The adjacent pavement plates are bonded together by a bonding structure, and after the front side pavement surface reaches the service limit due to damage such as wear, the bonding rebar interposed between the joining end surfaces is cut, and the pavement plate is inverted. Then, the pavement plates are laid again on the roadbed, and the adjacent pavement plates are connected to each other by the connecting structure for the back side.

Further, in the invention according to claim 5, after the joining end faces of the pavement plate are aligned so that the opening portions of the one and the other holes coincide with each other, the other side of the coupling reinforcing bar is set to the hole of the other pavement plate. When one end of the tension member is connected to one end side of the coupling reinforcing bar, the coupling reinforcing bar is housed in the one hole together with one end side of the coupled tension member, and the other end side of the tension member is inserted. After pulling out the upper part and aligning the openings of the one and the other holes so as to coincide with each other, the other end side of the tension member is pulled to move the coupling rebar toward the other hole.

Moreover, the invention which concerns on Claim 6 provides the receiving hole and grout hole which penetrated between the said front side pavement surface and the said back side pavement surface of the said pavement plate, and lays the said pavement plate in parallel on a roadbed. And adjusting the height of the paving plate with a height adjusting bolt screwed into the receiving hole, and filling the grout material from the grout hole to the lower surface side of the paving plate while being supported by the height adjusting bolt. It is characterized by.

According to the configuration of the first aspect of the present invention, when the front side pavement surface reaches the service limit due to damage such as wear, the pavement plate is reversed and laid again with the back side pavement surface formed on the back side facing up. In this case, when using with the front side pavement face up, after placing the connecting rebar across one hole and the other hole, the filling material is filled from the upper side filling hole, while the back side pavement face When using with the upper side facing up, after placing the binding rebar across one and the other hole, after filling up, fill the filler from the back side filling hole and connect the adjacent pavement plates on both sides can do.

Moreover, according to the structure of Claim 2 of this invention, since the hole which inserts a joint rebar is arranged in parallel in the joint structure for front sides, and the joint structure for back sides, it is the front side pavement surface and the back side pavement surface. A combined structure with substantially the same performance can be obtained in use.

Further, according to the configuration of the third aspect of the present invention, the reversing work is facilitated by the hanger provided on the joining end face, and the hanger does not protrude from the joining end face, so that it does not get in the way when laid.

Moreover, according to the structure of Claim 4 of this invention, when using both the front side pavement surface and the back side pavement surface, adjacent pavement plates can be combined and used.

Moreover, according to the structure of Claim 5 of this invention, the joint reinforcement which connected the tension member is stored in one hole, the other end of the tension member is pulled out outside, and the joining end surfaces of the concrete paving slab are abutted against each other When the other end of the tension member is pulled after combining the one and the other holes, the connecting reinforcing bar moves toward the other hole, and the connecting reinforcing bar can be disposed across the one and the other holes.

According to the configuration of claim 6 of the present invention, the height of the paving plate is adjusted by the height adjusting bolt screwed into the receiving hole when the front side pavement surface and the back side pavement surface are laid, and the grout hole is used. The grout material can be filled on the lower surface side of the paving plate.

It is a top view of the pavement plate which shows Example 1 of this invention. It is a side view of a paving plate as above. It is sectional drawing around a receiving hole same as the above. FIG. 4 is a cross-sectional view around the grout hole. It is a sectional view around a suspension tool same as the above. It is sectional drawing of the state which screwed the height adjustment bolt of the receiving hole same as the above. FIG. 4 is a cross-sectional view around the grout hole after grout filling. It is sectional drawing of the state which pulled out the height adjustment volt | bolt from the receiving hole same as the above, and was filled with mortar in the upper part. It is sectional drawing of the state which pulled out the height adjustment volt | bolt from the receiving hole same as the above, screwed the temporary filling member in the receiving hole, and filled the top with mortar. It is a perspective view of the principal part of a temporary filling member same as the above. It is sectional drawing of one pavement plate before accommodating a joint reinforcing bar same as the above. It is a side view of a joint reinforcing bar before connecting a tension member same as the above. It is sectional drawing of one pavement plate after storing a joint reinforcement same as the above. It is sectional drawing of the pavement plate before moving a joint reinforcement same as the above. It is sectional drawing of the pavement plate after moving a joint reinforcement same as the above. FIG. 3 is a cross-sectional view of the pavement plate after filling with a filler. FIG. 3 is a cross-sectional view of the paving plate after inversion and after filling with a filler. It is sectional drawing of the pavement plate after moving the joint reinforcement which shows Example 2 of this invention.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention. In each example, by adopting a new precast concrete pavement plate that can be used on both sides different from the conventional one and its installation method, an unprecedented precast concrete pavement plate that can be used on both sides and its installation method can be obtained. Describes the precast concrete paving plates that can be used and how to install them.

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 17 show Embodiment 1 of the present invention. As shown in FIG. 1, paving slabs 1 and 2 made of precast concrete are laid with their joint end faces 23 and 24 being butted.

On the front and back of the pavement plates 1 and 2 are formed a front side pavement surface 7 that has been washed out in order to increase friction with the tire, and a back side pavement surface 8 that has been subjected to broom finish. In order to prevent adhesion of a grout material as a back-filling material, which will be described later, a release agent 8A is sprayed or applied.

Next, the front side and back side coupling structures 21 and 22 that couple adjacent paving plates 1 and 2 will be described. The pavement plates 1 and 2 have the same configuration.

The front-side and back-side coupling structures 21, 22 have one end on the one side in the width direction (lower side in FIG. 1) and one side in the length direction (right side in FIG. 1) of the paving plates 1, 2. A horizontal hole 25 which is one hole opened in the horizontal hole 25 is provided horizontally, and the coupling reinforcing bar 26 is slidably fitted in the horizontal hole 25 so as to be freely slidable. At the back of the horizontal hole 25, a vertical hole 27 serving as a filling hole for a filler having a circular cross section is provided which communicates with the upper surface of the pavement plates 1 and 2 on the outer side.

Further, on the other side in the width direction (upper side in FIG. 1) and the other side in the length direction (left side in FIG. 1) of the pavement plates 1 and 2, the other horizontal hole 28 having one end opened to the coupling end surface 24 is provided. Set sideways. The horizontal hole 28 is a tapered hole that slightly expands outward, and the opening at the coupling end surface 24 is formed larger than the opening at the coupling end surface 23 of the horizontal hole 24, and the coupling end surface 24 of the horizontal hole 28. The lower end 28K of the opening is set at a position lower than the lower end of the opening on the coupling end surface 24 of the horizontal hole 25, so that the coupling rebar 26 can be easily inserted. Further, at the back of the horizontal hole 28, a vertical hole 29 serving as a filling hole for a filler having a circular cross section communicating with the upper surface on the outer side of the paving plates 1 and 2 is provided.

Further, the length of the horizontal hole 28 is approximately half of the horizontal hole 25, and approximately half of the coupling rebar 26 is accommodated in the horizontal hole 28, and the other end of the coupling rebar 26 is in contact with the back of the horizontal hole 28.

A packing material 30 is fitted between the coupling end surfaces 23 and 24 of the paving plates 1 and 2, and an insertion hole 31 is formed in the packing material 30 corresponding to the horizontal hole 28.

A vinyl tape 32 as a tension member is connected to one end side of the connecting reinforcing bar 26. For this connection, an adhesive tape 33 as an adhesive means is used. Examples of the adhesive tape 33 include a cloth gum tape in which an adhesive surface is provided on a cloth tape.

Reference numeral 34 denotes a filler filled in the horizontal holes 25 and 28 from the vertical holes 27 and 29.

As shown in FIGS. 1 and 2, the joint end surface 23 is provided with a plurality of a pair of horizontal holes 25, 25 provided side by side, and a pair of horizontal holes provided side by side on the joint end surface 24. A plurality of 28 and 28 are provided. Furthermore, the horizontal holes 25 and 28 are provided in the center in the thickness direction of the paving plates 1 and 2.

One vertical hole 27 of the pair of horizontal holes 25, 25 communicates with the front side pavement surface 7, and the other vertical hole 27 communicates with the back side pavement surface 8, and one of the pair of horizontal holes 28, 28 the vertical hole 29 communicates with the front pavement 7, and the other vertical hole 2 9 communicates with the rear pavement 8, the front side coupling structure 21 is provided with a vertical hole 27, 29 communicating with the front pavement 7, The back side coupling structure 21 includes vertical holes 27 and 29 communicating with the back side pavement surface 8.

In this example, the vertical holes 27 and 29 of the left horizontal holes 25 and 28 communicate with the front pavement surface 7 on the lower and upper coupling end surfaces 23 and 24 in FIG. 28 vertical holes 27, 29 communicate with the front side pavement surface 8, and the vertical holes 29, 27 of the upper horizontal holes 28, 25 communicate with the back side pavement surface 8 at the left and right coupling end surfaces 24, 23. At the same time, the vertical holes 29 and 27 of the lower horizontal holes 28 and 25 communicate with the back side pavement surface 8.

Reference numeral 9 is a receiving hole for lifting and adjusting the height of the pavement plate penetrating between the front side pavement surface 7 and the back side pavement surface 8. The plurality of receiving holes 9 are arranged in at least four sides of the pavement plates 1 and 2. In addition, a nut-shaped female screw body 10 which is a female screw portion is fixed to the approximate center of the receiving hole 9 coaxially by insert molding at the time of pavement plate molding. The female screw body 10 is made of a material having excellent corrosion resistance such as stainless steel. A suspension tool (not shown) or a height adjustment bolt 11 is screwed onto the female screw body 10, and the head of the height adjustment bolt 11 is a tool engaging portion. When laying, the hanger is screwed into the female screw body 10, and after laying, the height adjusting bolt 11 is screwed into the female screw body 10 and the screwing position is adjusted, whereby the paving plate 1, The height of 2 can be adjusted. In addition, the resistance at the time of rotation is reduced by forming the front-end | tip of the height adjustment bolt 11 sharply.

Further, as shown in FIG. 9 , a temporary filling member 11A made of a synthetic resin or the like is screwed into the female screw body 10 as necessary, and a driver groove is formed on the upper and lower ends of the temporary filling member 11A. A concave cap 11B is fitted to the top of the temporary filling member 11A in a state where the female screw body 10 is filled with the temporary filling member 11A, and the mortar is formed by the temporary filling member 11A. Intrusion into the receiving hole 9 is prevented.

Reference numeral 12 denotes a grout hole for filling a grout material. The grout hole 12 is provided by embedding a synthetic resin pipe 13 such as vinyl chloride.

Further, a plurality of suspension tools 41 are provided on the joining end surfaces 23 and 24 of the paving plates 1 and 2, and the suspension tool 41 is composed of a deher anchor or the like as shown in FIG. embedded fixed to the plate 1, sling the head 42A of the body 42, accommodated in a recess 4 3 formed joining end face 23 and 24, locking the hanging on the head 4 2A bracket (not shown) Then the paving plates 1 and 2 are lifted.

Next, the installation method of the pavement plate will be described. In addition, the description regarding the joint work in installation is mentioned later.

First, the existing pavement is demolished using a concrete cutter, breaker, etc., and then removed. Next, as shown in FIGS. 6 and 7, the supplementary material is carried on the existing roadbed and spread, and the level is adjusted by rolling with a vibrating roller or the like. After the roadbed 15 is formed in this manner, an asphalt intermediate layer 14 constituting the upper portion of the roadbed 15 is formed, and the thickness of the asphalt intermediate layer 14 is reduced to 0. A resin sheet 16 made of vinyl or the like having a thickness of about 1 to 0.3 mm is laid, and an iron plate or the like that becomes the receiving plate 17 of the height adjusting bolt 11 is disposed in a proper position on the resin sheet 16. Although it is not always necessary to provide the asphalt intermediate layer 14, while preventing the bottom of the joint from being hollowed out by adjusting sand flowing out from the joint of the pavement plates 1 and 2 adjacent to each other and vibration, It is preferable to provide the asphalt intermediate layer 14 from the standpoint of enhancing the supporting force.

Next, a lifting tool (not shown) is screwed onto the female screw body 10 of the receiving hole 9, and the paving plates 1 and 2 are laid at a predetermined position by a transport truck and a crane. Then, the lifting tool is removed, and as shown in FIG. 6, the height adjustment bolt 11 is screwed from one side of the receiving hole 9 and the lower end of the height adjustment bolt 11 is brought into contact with the receiving plate 17 to make a level. And adjust to a predetermined height. Further, the packing material 30 is disposed so as to be sandwiched between the joining end faces 23 and 24 of the adjacent paving plates 1 and 2.

Thereafter, the grouting material 18 is filled with a back filling grout material 18 on the back side of the pavement plates 1 and 2 through the grouting hole 12 (FIG. 7). After the grout material 18 is hardened, the bolt 11 is pulled out, whereby the portion where the bolt 11 is pulled out becomes a cavity, and a cap 11B is mounted on the upper portion of the receiving hole 9 as shown in FIG. 9 is filled with a super fast-hardening mortar 19 and the grout hole 12 is also filled with a super-fast hardening mortar 20 . After the bolt 11 is pulled out, as shown in FIG. 9, a temporary filling member 11A made of synthetic resin is screwed into the receiving hole 9, and a cap 11B is attached to the upper part of the receiving hole 9, and the temporary filling member The receiving hole 9 may be protected by 11A.

Next, the joining operation | work of the adjacent pavement plates 1 and 2 performed during the installation operation mentioned above is demonstrated. The other end of the vinyl tape 32 is bonded and connected to the other end of the bonded reinforcing bar 26 made of a hard material with an adhesive tape 33. Before laying the adjacent pavement plate, the connecting reinforcing bar 26 is inserted into the horizontal hole 25 from the other end and stored.

When the front side pavement surface 7 is used, the coupling reinforcing bars 26 are inserted into only one of the adjacent horizontal holes 25 and 25. Specifically, in FIG. 1, the coupling rebar 26 is inserted into the horizontal hole 25 on the left side of the lower coupling end surface 23 in the drawing and the horizontal hole 25 on the upper side of the coupling end surface 23 on the right side in the drawing.

One end of the vinyl tape 32 is drawn on the paving plate 1. Preferably, the middle of the vinyl tape 32 is along the coupling end surface 23 on the horizontal hole 25 and further along the upper surface of the paving plate 1. In this state, across the packing material 30 as described above between the joining end face 2 3, 2 4, laying pavement 1,2, one end of the plastic tape 32, the surface of the pavement 1,2 which is an external Pull it out on the side.

Next, when one end side of the vinyl tape 32 is pulled outward, the joining rebar 26 is sent to the other pavement plate 2 side and inserted into the horizontal hole 28 from the insertion hole 31, and one end of the connecting rebar 26 is connected to the horizontal hole. Stop by hitting the back of 28. In this case, this can be confirmed by the sound generated when the connecting reinforcing bar 26 comes into contact with the back of the horizontal hole 28. Thereafter, if the vinyl tape 32 is further pulled strongly, the vinyl tape 32 is detached from the adhesive tape 33 and the vinyl tape 32 can be extracted. There is no problem even if the vinyl tape 32 remains in the pavement plate 1.

After that, the filler 34 is filled from the vertical holes 27 and 29 opened on the front side, and the gaps between the horizontal holes 25 and 28 and the connecting reinforcing bars 26 and the vertical holes 27 and 29 are filled with the filler 34. The filler 34 is made of a curable grout material.

As described above, the paving slabs 1, 2,... Are laid, and the adjacent paving slabs 1, 2 are joined together and used.

On the other hand, when the front side pavement surface 7 of the pavement plates 1 and 2 is worn by wrinkles or the like, the packing material 30 is removed, and the joint reinforcing bars 26 between the adjacent pavement plates 1 and 2 are cut with a cutter or the like. . In this case, the position of the joint reinforcing bar 26 can be confirmed using the vertical holes 27 and 29 filled with the filler 34 as marks. Further, when the mortar 19 of the receiving hole 9 is removed and the cap 11B is taken out, the hollow female screw body 10 formed by removing the bolt 11 as described above appears, or when the temporary filling member 11A is used 11A also removes the temporary filling member 11, screws a hanger (not shown) into the female screw body 10 of the receiving hole 9, and pavers using the hanger and the hanger 41 that are screwed into the female screw body 10. After the plates 1 and 2 are lifted, they are reversed, the back side pavement surface 8 is used as the surface, the roadbed work is performed as described above, and the bolts 11 are screwed into the receiving holes 9 from the back side pavement surface 8 side to level, etc. Adjust.

Further, before the inversion, the mortar 20 is removed from the grout hole 12 or the mortar 20 is removed together with the pipe 13. Further, before laying the pavement plate 2 next to each other, the reinforcing bars 26 are inserted only into the other of the adjacent horizontal holes 25 and 25 that are not used on the front side, and one end of the vinyl tape 32 is placed on the pavement plate 1. It is pulled out to the back side pavement surface 8. Then, the paving slab 2 is laid next to the installation method with the front side pavement surface 7 facing upward.

After adjusting the level, the grout material 18 is filled on the side of the pavement surface 7 facing downward from the grout hole 12 and solidified. Further, after extracting the bolt 11, super-hard mortars 19 and 20 are filled in the upper portions of the receiving hole 9 and the grout hole 12.

Further, when one end side of the vinyl tape 32 is pulled outward, the joining rebar 26 is sent to the other pavement plate 2 side and inserted into the horizontal hole 28 from the insertion hole 31, and one end of the connecting rebar 26 is connected to the horizontal hole 28. Stop by hitting the back of the. Thereafter, the filler 34 is filled from the vertical holes 27 and 29 that open to the back side pavement surface 8 that is on the upper side, and the gaps between the horizontal holes 25 and 28 and the connecting reinforcing bars 26 and the vertical holes 27 and 29 are filled with the filler 34. fill in. The filler 34 is made of a curable grout material.

And after curing, the back side pavement surface 8 used as a table | surface is used.

As described above, when the front side pavement surface 7 and the back side pavement surface 8 are respectively formed on the front side and the back side of the pavement plates 1 and 2, and the front side pavement surface 7 is worn, the pavement plates 1 and 2 are reversed. By revealing the back side pavement surface 8 and installing it again, the single pavement plates 1 and 2 can be reused, and the cost can be reduced. Both sides can be used in paving plates.

Furthermore, since the pavement plates 1 and 2 having the front side pavement surface 7 and the back side pavement surface 8 are reversed and installed again, it is not necessary to newly manufacture and carry the pavement plate, and the construction period can be shortened.

Thus, in this embodiment, corresponding to claim 1, in the precast concrete pavement plate that can be used on both sides, the pavement plates 1 and 2 are formed on the front side and back side of the pavement plate 1 and 2, respectively. 1 and 2 are provided with connecting structures 21 and 22 in which connecting reinforcing bars 26 are interposed between the joining end faces 2 3 and 24, and the joining structures 21 and 22 are provided on one side of the pavement plates 1 and 2 and open to the joining end face. A horizontal hole 25 that is a hole, a horizontal hole 28 that is the other hole that is provided horizontally on the pavement plates 1 and 2 and opens to the joint end surface 24 corresponding to the one horizontal hole 25, and the pavement plates 1 and 2 that are connected to each other. A connecting reinforcing bar 26 inserted across one horizontal hole 25 and the other horizontal hole 28; a vertical hole 27 serving as a filling hole for a filler communicating with at least one of the one horizontal hole 25 and the other horizontal hole 28; 29 and the vertical holes 27, 29 The other horizontal holes 25 and 28 are filled with a filling material 34, and the vertical holes 27 and 29 communicate with the front side, and the front side coupling structure 21 and the vertical holes 27 and 29 communicate with the back side. If the front side pavement surface 7 is damaged due to wear or the like, the pavement plates 1 and 2 are reversed and laid again with the back side pavement surface 8 formed on the back side facing up. In this case, when used with the front side pavement surface 7 facing upward, after placing the connecting rebar 26 across the one and the other horizontal holes 25, 28, the filling material from the upper side vertical holes 27, 29 located above 34, on the other hand, when the back side pavement surface 8 is used, the back side vertical hole located on the upper side after reversal after the connecting rebar 26 is disposed across the one and the other horizontal holes 25, 28. The filling material 34 is filled from 27 and 29, and the adjacent pavement plates 1 and 2 can be combined on both sides.

In this way, in this embodiment, in correspondence with claim 2, the horizontal hole 25 as one hole of the front-side coupling structure 21 and the horizontal hole 25 as one hole of the rear-side coupling structure 22 are arranged in parallel. In addition, since the horizontal hole 28 as the other hole of the front-side coupling structure 21 and the horizontal hole 28 as the other hole of the back-side coupling structure 22 are arranged in parallel, in the front-side coupling structure 21 and the back-side coupling structure 22, Since the horizontal holes 25 and 28 for inserting the coupling reinforcing bars 26 are arranged side by side, a coupling structure having substantially the same performance can be obtained in the usage state of the front side pavement surface 7 and the back side pavement surface 8.

In this way, in this embodiment, corresponding to claim 3, the hanger 41 is provided on the coupling end surfaces 23 and 24 of the pavement plates 1 and 2, and the hanger 41 is provided inside the coupling end surfaces 23 and 24. Therefore, the reversing work is facilitated by the hanger 41 provided on the joining end surfaces 23 and 24. Moreover, since the hanger 41 does not protrude from the joining end surfaces 23 and 24, it does not get in the way when laid.

Moreover, according to the structure of Claim 4 of this invention, when using both the front side pavement surface and the back side pavement surface, adjacent pavement plates can be combined and used.

In this way, in this embodiment, corresponding to claim 4, in the method for installing a precast concrete pavement plate that can be used on both sides according to any one of claims 1 to 3, the pavement plate on the roadbed 15 is provided. 1 and 2, and the adjacent pavement plates 1 and 2 are connected to each other by the front side connection structure 21, and after the front side pavement surface 7 reaches the service limit due to damage such as wear, between the joint end surfaces 23 and 24. The intervening reinforcing bars 26 are cut, the paving slabs 1 and 2 are inverted and laid again on the roadbed 15, and the adjacent paving slabs 1 and 2 are joined together by the back side coupling structure 22. It sided Oite when either in service of rear pavement 8 can also be used to combine adjacent pavement 1,2 together.

In this way, in this embodiment, corresponding to claim 5, the joint end faces 23 and 24 of the paving plates 1 and 2 are arranged so that the openings of the horizontal holes 25 and 28 as one and the other holes coincide. After the fitting, the other side of the connecting reinforcing bar 26 is inserted into the horizontal hole 28 as the hole of the other pavement plate 2, and then one end of the vinyl tape 32 as a tensile member is connected to one end side of the connecting reinforcing bar 26, The combined reinforcing bar 26 is housed in one horizontal hole 25 together with one end side of the vinyl tape 32, the other end side of the vinyl tape 32 is pulled out upward, and the openings of the one and other horizontal holes 25, 28 are aligned. after combined, because moving towards the reinforcing bar 26 by pulling the other end of the vinyl tape 32 to the other horizontal hole 28, the reinforcing bar 26 connecting the vinyl tape 32, housed in one of the horizontal hole 25, plastic tape The other end of 2 is drawn outside before the joining end faces 23 and 24 are abutted, the joining end faces 23 and 24 of the concrete paving plates 1 and 2 are abutted with each other, and the one and the other horizontal holes 25 and 28 are aligned. When the other end of the vinyl tape 32 is pulled, the coupling reinforcing bar 26 moves toward the other horizontal hole 28, and the coupling reinforcing bar 26 can be disposed across the one and other horizontal holes 25, 28.

In this way, in this embodiment, corresponding to claim 6, the receiving hole 9 and the grout hole 12 penetrating between the front side pavement surface 7 and the back side pavement surface 8 of the pavement plates 1 and 2 are provided. The plates 1 and 2 are laid side by side on the roadbed 15, and the height of the paving plates 1 and 2 is adjusted by the height adjusting bolt 11 screwed into the receiving hole 9 and supported by the height adjusting bolt 11. Since the grout material 18 is filled from the grout hole 12 to the lower surface side of the pavement plates 1 and 2, the height adjustment bolt 11 screwed into the receiving hole 9 is used when the front side pavement surface 7 and the back side pavement surface 8 are laid. The height of the pavement plates 1 and 2 can be adjusted, and the grout material 18 can be filled on the lower surface side of the pavement plates 1 and 2 using the grout holes 12.

Further, as an effect of the embodiment, since the horizontal holes 25 and 28 are provided in the center of the pavement plates 1 and 2 in the thickness direction, uniform joint structures 21 and 22 can be obtained when both the front and back surfaces are used. Further, since the plurality of hoisting tools 41 are provided on the end faces in the width direction of the pavement plates 1 and 2 (upper and lower connecting end faces 23 and 24 in FIG. 1), the reversing operation is facilitated.

Further, as an effect of the embodiment, in the bonding method of the concrete paving plates 1 and 2 in which the connecting reinforcing bars 26 are interposed between the joint end faces 23 and 24 of the concrete paving plates 1 and 2 that are connected to each other, A horizontal hole 25, one end of which is open to the joint end surface 23 of the pavement plate 1, is provided sideways, and a coupling rebar 26 is accommodated in the one horizontal hole 25, and the other pavement plate 2 has one end on the pavement plate. The horizontal hole 28 which is the other hole opened in the two joint end faces 24 is provided horizontally so that the joint end faces 23 and 24 of the paving plates 1 and 2 are aligned with the openings of the one and other horizontal holes 25 and 28. In the joining method of the concrete pavement plate in which the other side of the coupling rebar 26 is inserted into the horizontal hole 28 of the other pavement plate 2, one end of the vinyl tape 32 as a tension member is connected to one end side of the coupling rebar 26. After The connecting reinforcing bars 26 are housed in one horizontal hole 25 together with one end side of the connected vinyl tape 32, the other end side of the vinyl tape 32 is pulled out upward, and the openings of one and the other horizontal holes 25 and 28 are aligned. After the alignment, the other end of the vinyl tape 32 is pulled to move the connecting reinforcing bar 26 to the other side toward the horizontal hole 28. Therefore, the connecting reinforcing bar 26 connected with the vinyl tape 32 is accommodated in one horizontal hole 25, The other end of the vinyl tape 32 is pulled out to the outside before the joining end faces 23 and 24 are abutted, the joining end faces 23 and 24 of the concrete paving plates 1 and 2 are abutted with each other, and one and the other horizontal holes 25 and 28 are aligned. after, if pulling the other end of the plastic tape 32, the motion reinforcing bar 26 toward the other of the horizontal hole 2 8, across the reinforcing bar 26 to one and the other of the horizontal holes 25, 28 It can be arranged.

Moreover, since the vinyl tape 32 which is a tension member is disposed on the upper part of the coupling reinforcing bar 26 in one horizontal hole 28, the vinyl tape 32 is easily pulled.

Further, since the vinyl tape 32 is connected to the coupling reinforcing bar 26 by the adhesive tape 33 as an adhesive means, the tensile member can be pulled out after the coupling reinforcing bar 26 is moved.

FIG. 18 shows a second embodiment of the present invention, in which the same reference numerals are given to the same parts as those in the first embodiment, the detailed description is omitted, and in this example, the horizontal holes 25 and 28 are surrounded. The reinforcing member 51 is disposed in the paving plates 1 and 2. Examples of the reinforcing member 51 include a ring- shaped reinforcing bar and a loop- shaped reinforcing bar. As shown in the figure, the reinforcing member 51 does not need to be provided over the entire length of the horizontal hole 25, and may be provided in a range that substantially surrounds the coupling reinforcing bar 26 in a joined state.

As described above, in this embodiment, since both the horizontal holes 25 and 28 are reinforced by the reinforcing member 21, the coupling strength can be ensured.

The present invention is not limited to this embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, the coupling structure is not limited to the type of embodiment, but can be applied to various structures such as the prior art type. Further, the tension member may be a string, a band, a chain, or the like as long as it can move the joint reinforcing bar by pulling the other end side outside the vinyl tape. Moreover, the material of a joint reinforcement can be selected suitably. Furthermore, it cannot be overemphasized that it can construct without using a temporary filling member. Moreover, this construction method can be used for a roadbed without an asphalt intermediate layer.

DESCRIPTION OF SYMBOLS 1 Pavement plate 2 Pavement plate 3 Joint end surface 4 Joint end surface 7 Front side pavement surface 8 Back side pavement surface 9 Receiving hole 11 Height adjustment bolt 12 Grout hole 14 Asphalt intermediate layer (roadbed)
15 roadbed 18 grout material 21 front side coupling structure 22 back side coupling structure 23 coupling end surface 24 coupling end surface 25 One horizontal hole (one hole)
26 Bonded rebar 27 Vertical hole (filling hole)
28 The other horizontal hole (the other hole)
29 Vertical hole (filling hole)
32 Vinyl tape (tensile member)
34 Filler 41 Suspension 43 Recess

Claims (6)

In the precast concrete paving plate that can be used on both sides with the paving surface formed on the front side and the back side of the paving plate,
Comprising a coupling structure in which coupling reinforcing bars are interposed between joint end faces of the pavement plates coupled to each other;
The coupling structure includes one hole that is laterally provided in the paving plate and opened to the joining end surface, and the other hole that is laterally provided to the paving plate and is open to the joining end surface corresponding to the one hole. The rebar inserted between the one hole and the other hole of the pavement plate to be connected, the filling hole for the filler communicating with at least one of the one hole and the other hole, and this filling A filler filled in the one and other holes from the hole,
A precast concrete paving slab that can be used on both sides, comprising: the front-side coupling structure in which the filling hole communicates with the front side; and the back-side coupling structure in which the filling hole communicates with the back side. The one side hole of the front side coupling structure and the one side hole of the back side coupling structure are juxtaposed, and the other hole of the front side coupling structure and the other hole of the back side coupling structure The precast concrete pavement plate that can be used on both sides according to claim 1. The precast concrete paving plate which can be used on both sides according to claim 1 or 2, wherein a suspension is provided on the joint end face of the pavement plate, and the suspension is provided inside the joint end face. In the installation method of the precast concrete pavement plate which can be used for both surfaces of any one of Claims 1-3, while laying the said pavement plate on a roadbed, the said pavement plates adjacent by the said joint structure for front sides are mutually After the front pavement surface reaches the service limit due to damage such as wear, cut the joint rebar interposed between the joint end surfaces, invert the pavement plate and lay on the roadbed again, the back side A method for installing a precast concrete pavement plate that can be used on both sides, wherein the adjacent pavement plates are joined together by a joint structure. After the joining end faces of the pavement plate are aligned so that the openings of the one and the other holes coincide with each other, when the other side of the coupling rebar is inserted into the hole of the other pavement plate, After connecting one end of the tension member to the one end side, the connecting reinforcing bar is housed in the one hole together with the one end side of the connected tension member, and the other end side of the tension member is pulled out to the upper side, 5. The precast concrete capable of being used on both sides according to claim 4, wherein after the holes are aligned so that the openings coincide with each other, the other end side of the tension member is pulled to move the joint reinforcing bar toward the other hole. How to install the paving version. A receiving hole and a grout hole penetrating between the front side pavement surface and the back side pavement surface of the pavement plate are provided, and the pavement plate is arranged side by side on a roadbed and screwed into the reception hole. 6. The double-sided surface according to claim 5, wherein the height of the pavement plate is adjusted by a height adjusting bolt, and a grout material is filled from the grout hole to the lower surface side of the pavement plate while being supported by the height adjusting bolt. How to install a precast concrete paving plate that can be used.

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