KR20230155676A - Precast concrete panel contiuous structure for road pavement and construction method thereof - Google Patents

Abstract

The present invention relates to a continuous structure of precast concrete panels for road paving that can firmly join a plurality of precast concrete panels, wherein a plurality of coupling reinforcing bars protrude on one end and a plurality of coupling grooves are formed on the other end. 1Precast concrete panel; It is installed adjacent to one end of the first precast concrete panel, and on one end facing the first precast concrete panel, a plurality of coupling grooves are provided into which a plurality of coupling reinforcing bars of the first precast concrete panel are inserted. A second precast concrete panel with a plurality of bonding reinforcing bars protruding from the other cross section; and grout filled in the plurality of coupling grooves of the second precast concrete panel into which the plurality of coupling reinforcing bars of the first precast concrete panel are inserted.
According to the present invention, two adjacent precast concrete panels are connected by inserting a plurality of coupling reinforcing bars provided on one end of a precast concrete panel into a plurality of coupling grooves provided on one end of an adjacent precast concrete panel and then joining them with grout. Because it can be strongly combined, multiple precast concrete panels can be reliably connected to create concrete road pavement. In addition, a plurality of connection grooves provided on the upper surface of the precast concrete panel and a plurality of connection holes provided on one side are connected to a plurality of connection grooves provided on the upper surface of another adjacent precast concrete panel and a plurality of connection holes provided on one side. By inserting a connecting rod and fastening it with a plurality of nuts, two adjacent precast concrete panels can be firmly joined, which has the effect of realizing a concrete road pavement by reliably connecting a plurality of precast concrete panels.

Description

Precast concrete panel continuous structure for road pavement and construction method thereof}

The present invention relates to a continuous structure of precast concrete panels for road paving and a construction method thereof, and more specifically, to a road that can continuously and firmly connect a plurality of precast concrete panels installed on the upper surface of the subbase of an existing road or new road. It relates to a continuous structure of precast concrete panels for paving and its construction method.

In general, concrete pavement along with asphalt pavement are widely used as road pavement.

Asphalt pavement is vulnerable to high temperatures and static loads due to its nature, so most pavement damage occurs in the form of permanent deformation such as rutting and surface spalling, and its durability is poor, so it requires resurfacing every five years, which requires maintenance. There is a problem with poor economic efficiency.

Concrete pavement has the advantage of being more durable than asphalt pavement and having much lower maintenance costs.

However, concrete pavement has a problem in that it requires a certain curing period to obtain a certain strength, which can cause significant disruption to vehicle traffic.

To solve these problems, a method of paving roads using precast concrete panels has been widely used recently.

In order to pave a road using precast concrete panels, it is necessary to continuously connect a plurality of precast concrete panels.

The technology for connecting multiple precast concrete panels is Korea Patent Registration No. 10-1389704 (Name: Precast concrete panels for road pavement and its construction method) and No. 10-2087726 (Name: Precast continuous reinforced concrete road pavement) structure and construction method).

The invention of Patent Registration No. 10-1389704 connects two precast concrete panels by arranging a plurality of hoop reinforcing bars protruding from both ends of two adjacent precast concrete panels in a staggered manner and filling mortar between them.

However, this technology has the problem of requiring a curing period because mortar must be poured in situ at the joint between two precast concrete panels, necessitating blocking traffic for more than 7 days. In addition, there is a problem that cracks or damage occur due to repeated loads from vehicles passing on the road due to the difference in strength between the precast concrete panel and the connection part.

The invention of Patent Registration No. 10-2087726 involves forming flanges on both ends of the upper surface of a precast concrete panel, protruding rebar under the flange, and then filling the space under the flange of two adjacent precast concrete panels with mortar. It connects two precast concrete panels.

However, this technology has the problem that when repeated loads from vehicles are applied, the mortar cracks and the rebar and grout separate, deteriorating the functionality of the precast concrete pavement.

The present invention was created in consideration of the above problems, and is a precast concrete panel continuous structure for road pavement that can reliably connect a plurality of precast concrete panels by firmly joining two adjacent precast concrete panels and a construction method thereof. The purpose is to provide.

The purpose of the present invention as described above is,

A first precast concrete panel in which a plurality of coupling reinforcing bars protrude from one end surface and a plurality of coupling grooves are formed on the other end surface;

It is installed adjacent to one end of the first precast concrete panel, and on one end facing the first precast concrete panel, a plurality of coupling grooves are provided into which a plurality of coupling reinforcing bars of the first precast concrete panel are inserted. A second precast concrete panel with a plurality of bonding reinforcing bars protruding from the other cross section; and

By providing a precast concrete panel continuous structure for road paving, comprising grout filled in a plurality of coupling grooves of the second precast concrete panel into which a plurality of coupling reinforcing bars of the first precast concrete panel are inserted. It can be achieved.

At this time, the plurality of connecting reinforcing bars may be formed as U-shaped reinforcing bars or stud bars.

Additionally, the plurality of coupling grooves may be formed in a shape whose cross-sectional area gradually widens from the inlet to the floor.

Additionally, the lower surfaces of the plurality of coupling grooves may be open, and hoop reinforcing bars buried inside each of the first precast concrete panel and the second precast concrete panel may be exposed in each of the plurality of coupling grooves.

In another aspect of the present invention, the object of the present invention as described above is,

A first precast concrete panel including a plurality of connection grooves formed on both edges of the upper surface and a plurality of connection holes formed on both end surfaces to communicate with the plurality of connection grooves;

A panel is installed adjacent to one end of the first precast concrete panel and includes a plurality of connection grooves formed on both edges of the upper surface, and a plurality of connection holes formed on both end surfaces to communicate with the plurality of connection grooves. 2Precast concrete panels;

a plurality of connection rods inserted into the plurality of connection holes on one end of the first precast concrete panel and the plurality of connection holes on one end of the second precast concrete panel facing each other, and having male threads formed at both ends; and

This can be achieved by providing a precast concrete panel continuous structure for road paving, comprising a plurality of nuts coupled to male screws at both ends of the plurality of connecting rods.

In another aspect of the present invention, the object of the present invention as described above is,

A step of smoothing the subbase of the road;

Installing a first precast concrete panel having a plurality of bonding reinforcing bars on one end surface on the upper surface of the subbase;

Installing the second precast concrete panel so that the plurality of coupling reinforcing bars of the first precast concrete panel are inserted into the plurality of coupling grooves of the second precast concrete panel; and

Serializing precast concrete panels for road paving, comprising: filling the plurality of coupling grooves of the second precast concrete panel with grout to join the first precast concrete panel and the second precast concrete panel. This can be achieved by providing a construction method for the structure.

The precast concrete panel continuous structure for road paving according to an embodiment of the present invention having the structure described above combines a plurality of bonding reinforcing bars provided on one side of a precast concrete panel with a plurality of bonding bars provided on one side of an adjacent precast concrete panel. After inserting it into the groove and joining it with grout, two adjacent precast concrete panels can be firmly joined. Therefore, concrete road pavement can be implemented by reliably connecting a plurality of precast concrete panels.

In addition, the continuous structure of precast concrete panels for road pavement according to an embodiment of the present invention connects a plurality of connection grooves provided on the upper surface of the precast concrete panel and a plurality of connection holes provided on one side to the upper surface of another adjacent precast concrete panel. By inserting a plurality of connecting rods into the plurality of connection grooves and the plurality of connection holes provided on one side and fastening them with a plurality of nuts, two adjacent precast concrete panels can be firmly joined. Therefore, concrete road pavement can be implemented by reliably connecting a plurality of precast concrete panels.

1 is a perspective view showing a continuous structure of precast concrete panels for road paving according to an embodiment of the present invention;
Figure 2 is a cross-sectional view of the precast concrete panel continuous structure for road pavement of Figure 1 taken along line I-I;
Figure 3 is a perspective view of the first precast concrete panel used in the continuous structure of precast concrete panels for road paving in Figure 1;
Figure 4 is a perspective view of a second precast concrete panel used in the continuous structure of precast concrete panels for road paving in Figure 1;
Figure 5 is a cross-sectional view showing a continuous structure of precast concrete panels for road pavement according to another embodiment of the present invention;
Figure 6 is a perspective view of a precast concrete panel used in the continuous structure of precast concrete panels for road pavement of Figure 5;
Figure 7 is a perspective view showing a continuous structure of precast concrete panels for road pavement according to another embodiment of the present invention;
Figure 8 is a cross-sectional view of the precast concrete panel continuous structure for road pavement of Figure 7 taken along line II-II;
Figure 9 is a bottom perspective view of the continuous structure of precast concrete panels for road pavement of Figure 7;
Figure 10 is a perspective view showing a continuous structure of precast concrete panels for road pavement according to another embodiment of the present invention;
Figure 11 is a cross-sectional view of the precast concrete panel continuous structure for road pavement of Figure 10 taken along line III-III;
Figure 12 is a perspective view of a precast concrete panel used in the continuous structure of precast concrete panels for road pavement of Figure 10;
Figures 13A to 13E are diagrams for explaining the construction method of a continuous structure of precast concrete panels for road pavement according to an embodiment of the present invention.

The embodiments described below are shown as examples to aid understanding of the present disclosure, and it should be understood that the present disclosure can be implemented with various modifications different from the embodiments described herein. However, in describing the present disclosure below, if it is determined that detailed descriptions of related known functions or components may unnecessarily obscure the gist of the present disclosure, the detailed descriptions and specific illustrations will be omitted. Additionally, in order to facilitate understanding of the disclosure, the attached drawings are not drawn to scale and the dimensions of some components may be exaggerated.

Unless otherwise defined, terms used in the embodiments of the present disclosure may be interpreted as meanings commonly known to those skilled in the art.

In addition, terms such as 'front end', 'rear end', 'top', 'bottom', 'top', and 'bottom' used in the present disclosure are defined based on the drawings, and the shapes and shapes of each component are defined by these terms. Location is not limited.

Hereinafter, a precast concrete panel continuous structure for road paving according to an embodiment of the present invention will be described in detail with reference to the attached drawings.

The precast concrete panel continuous structure for road paving according to an embodiment of the present invention may include a plurality of precast concrete panels connected continuously.

Below, in order to simplify the city and explain the continuous structure of precast concrete panels for road paving, a detailed explanation will be given based on the continuous structure in which two precast concrete panels are connected.

Figure 1 is a perspective view showing a continuous structure of precast concrete panels for road pavement according to an embodiment of the present invention. Figure 2 is a cross-sectional view of the precast concrete panel continuous structure for road pavement of Figure 1 taken along line Ⅰ-Ⅰ. Figure 3 is a perspective view of the first precast concrete panel used in the continuous structure of precast concrete panels for road paving in Figure 1. Figure 4 is a perspective view of the second precast concrete panel used in the continuous structure of precast concrete panels for road paving in Figure 1.

Referring to Figures 1 to 4, the precast concrete panel continuous structure 1 for road pavement according to an embodiment of the present invention includes a first precast concrete panel 10 and a second precast concrete panel 10'. It can be included.

The first precast concrete panel 10 may be formed in a substantially rectangular flat shape. A plurality of bonding reinforcing bars 11 protrude from one end of the first precast concrete panel 10. Specifically, a plurality of coupling reinforcing bars 11 are installed to protrude on the right side of the first precast concrete panel 10. A plurality of connecting reinforcing bars 11 may be formed at regular intervals along the right side of the first precast concrete panel 10.

The plurality of coupling reinforcing bars 11 are formed in the same shape. Some of the plurality of connecting reinforcing bars 11 are fixed to the inside of the first precast concrete panel 10. That is, when the first precast concrete panel 10 is manufactured from concrete, it can be formed integrally with the first precast concrete panel 10.

The plurality of coupling reinforcing bars 11 may be formed in a U-shape. That is, the combined reinforcing bar 11 may be formed as a straight-shaped reinforcing bar. The two legs 11a of the U-shaped reinforcing bar 11 are fixed to the inside of the first precast concrete panel 10, and the head portion 11b protrudes from the right side of the first precast concrete panel 10.

A plurality of coupling grooves 13 are formed on one end of the first precast concrete panel 10 and the other end of the first precast concrete panel 10, which is located opposite to the other end face of the first precast concrete panel 10. Specifically, a plurality of coupling grooves 13 having a certain depth are provided on the left side of the first precast concrete panel 10. A plurality of coupling grooves 13 may be formed at regular intervals along the left side of the first precast concrete panel 10. The plurality of coupling grooves 13 provided on the left side of the first precast concrete panel 10 may be formed in the same number as the plurality of coupling reinforcing bars 11 provided on the right side.

The plurality of coupling grooves 13 are formed in a shape into which a plurality of coupling reinforcing bars 11 can be inserted. For example, when the coupling rebar 11 is formed of a cone-shaped rebar, the coupling groove 13 is formed in a shape into which the cone-shaped rebar 11 can be inserted.

The plurality of coupling grooves 13 may be formed in a shape whose cross-sectional area gradually widens from the inlet 13a toward the bottom 13b. For example, as in this embodiment, the coupling groove 13 may be formed in the shape of a square pyramid. In this case, the entrance 13a of the coupling groove 13 is formed in a rectangular shape as shown in FIG. 4. The bottom surface 13b of the coupling groove 13 is formed in a rectangular shape larger than the cross-sectional area of the inlet 13a.

Although not shown, as another example, the coupling groove 13 may be formed in the shape of a truncated cone. In this case, the entrance and bottom surface of the coupling groove 13 are formed in a circular shape.

In this way, if the coupling groove 13 is formed so that the inlet 13a has a smaller cross-sectional area than the bottom surface 13b, the grout filled in the coupling groove 13 does not leak out, so the grout filled in the coupling groove 13 The grout can be more firmly combined with the U-shaped rebar (11).

The entrance (13a) of the coupling groove (13) is formed in a size that allows the coupling reinforcing bar (11) to be inserted. When the coupling reinforcing bar 11 is a rectangular reinforcing bar, the entrance 13a of the coupling groove 13 is formed in a size that allows the head of the rectangular reinforcing bar 11 to be inserted.

A plurality of air holes 15 may be provided on the upper surface of the first precast concrete panel 10. The plurality of air holes 15 are formed to correspond to the plurality of coupling grooves 13 formed on the other end surface of the first precast concrete panel 10. That is, one air hole 15 penetrating the upper surface of the first precast concrete panel 10 is provided in one coupling groove 13.

The air hole 15 is formed adjacent to the bottom 13b of the coupling groove 13. Therefore, the air hole 15 allows the grout to be completely filled to the bottom of the coupling groove 13 when filling the coupling groove 13 with grout.

A through hole 21 penetrating all the way to the back may be formed on the front of the first precast concrete panel 10. The through hole 21 is formed to penetrate the plurality of coupling grooves 13. A reinforcing bar 20 may be inserted into the through hole 21.

When the through hole 21 is inserted into the coupling groove 13, the reinforcing bar 20 is inserted into the head 11b of the straight bar 11, as shown in FIG. 2. It is formed so that it can be. In this way, by inserting the reinforcing bar 20 into the coupling groove 13 and filling the coupling groove 13 with grout, the two precast concrete panels 10 and 10' can be more firmly joined.

Referring to FIG. 3, a plurality of hoop reinforcing bars 18 and 19 are provided inside the first precast concrete panel 10. A plurality of hoop reinforcing bars 18 and 19 may be arranged to be perpendicular to each other. Specifically, the plurality of hoop reinforcing bars may include a plurality of vertical hoop reinforcing bars 18 arranged side by side at regular intervals and a plurality of horizontal hoop reinforcing bars 19 arranged side by side at regular intervals. The plurality of vertical hoop reinforcing bars 18 and the plurality of horizontal hoop reinforcing bars 19 are arranged to be perpendicular to each other.

The leg portions 11a of the plurality of U-shaped reinforcing bars 11 may be coupled to adjacent hoop reinforcing bars 18 and 19. In this way, when the straight reinforcing bars 11 are coupled to the hoop reinforcing bars 18 and 19, the plurality of straight reinforcing bars 11 can be firmly fixed to the first precast concrete panel 10.

The first precast concrete panel 10 having this structure is made of concrete and can be manufactured in large quantities through molds in a factory.

The second precast concrete panel 10' is installed adjacent to one end of the first precast concrete panel 10. On one end of the second precast concrete panel 10' facing the first precast concrete panel 10, there are a plurality of coupling grooves into which the plurality of coupling reinforcing bars 11 of the first precast concrete panel 10 are inserted. (13) is provided, and a plurality of coupling reinforcing bars (11) protrude from the other cross section.

Specifically, the left side of the second precast concrete panel 10' is provided with a plurality of coupling grooves 13 into which the plurality of U-shaped reinforcing bars 11 provided on the right side of the first precast concrete panel 10 are inserted. do. A plurality of U-shaped reinforcing bars 11 are provided on the right side of the second precast concrete panel 10. The plurality of U-shaped reinforcing bars 11 of the second precast concrete panel 10' may be inserted into a plurality of coupling grooves 13 provided on the left side of another precast concrete panel (not shown).

Since the second precast concrete panel 10' is formed in the same structure as the first precast concrete panel 10, detailed description is omitted.

The grout 30 is injected into the plurality of coupling grooves 13 of the second precast concrete panel 10' into which the plurality of coupling reinforcing bars 11 of the first precast concrete panel 10 are inserted. Since an air hole 15 is formed in each of the plurality of coupling grooves 13, the grout 30 can completely fill the plurality of coupling grooves 13.

When the grout 30 is filled into the plurality of coupling grooves 13, the plurality of coupling reinforcing bars 11 of the first precast concrete panel 10, that is, the U-shaped reinforcing bars, are connected to the second precast concrete panel 10'. It can be fixed to the coupling groove (13).

Grout 30 may also be filled between one side of the first precast concrete panel 10 and one side of the second precast concrete panel 10' facing it.

As shown in Figure 1, a plurality of joints formed on the left side of the second precast concrete panel 10' face the plurality of U-shaped reinforcing bars 11 formed on the right side of the first precast concrete panel 10. By inserting into the groove 13 and filling the plurality of coupling grooves 13 with grout 30, the first precast concrete panel 10 and the second precast concrete panel 10' can be firmly connected. .

Therefore, by connecting a plurality of precast concrete panels 10 and 10' in the structure described above, the repetitive load of the vehicle can be stably supported and the flatness of the pavement surface can be secured.

In the above, the case where a straight reinforcing bar was used as a plurality of combined reinforcing bars (11) was explained. However, the shape of the plurality of connecting reinforcing bars 11 is not limited to this. As long as the connecting reinforcing bar (11) can be inserted into the connecting groove (13) and filled with grout (30) to connect the two precast concrete panels (10, 10'), the shape of the connecting reinforcing bar (11) can be formed in various ways. You can.

Hereinafter, with reference to FIGS. 5 and 6, a case where a plurality of connecting reinforcing bars 11 are formed as stud bars 12 will be described.

Figure 5 is a cross-sectional view showing a continuous structure of precast concrete panels for road pavement according to another embodiment of the present invention. Figure 6 is a perspective view of a precast concrete panel used in the continuous structure of precast concrete panels for road pavement of Figure 5.

Referring to Figures 5 and 6, the precast concrete panel continuous structure (1) for road pavement according to another embodiment of the present invention includes a first precast concrete panel (10) and a second precast concrete panel (10'). It can be included.

The first precast concrete panel 10 may be formed in a substantially rectangular flat shape. A plurality of bonding reinforcing bars 11 protrude from one end of the first precast concrete panel 10. Specifically, a plurality of coupling reinforcing bars 11 are installed to protrude on the right side of the first precast concrete panel 10. A plurality of connecting reinforcing bars 11 may be formed at regular intervals along the right side of the first precast concrete panel 10.

The plurality of coupling reinforcing bars 11 are formed in the same shape. Some of the plurality of connecting reinforcing bars 11 are fixed to the inside of the first precast concrete panel 10. That is, when the first precast concrete panel 10 is manufactured from concrete, it can be formed integrally with the first precast concrete panel 10'.

A plurality of connecting reinforcing bars 11 may be formed as stud bars 12. Here, the stud bar 12 refers to a reinforcing bar or round bar with heads formed at both ends. Half of the stud bar 11 is fixed to the inside of the first precast concrete panel 10, and the other half protrudes from the right side of the first precast concrete panel 10.

A plurality of coupling grooves 13 are formed on one end of the first precast concrete panel 10 and the other end of the first precast concrete panel 10, which is located opposite to the other end face of the first precast concrete panel 10. Specifically, a plurality of coupling grooves 13 having a certain depth are provided on the left side of the first precast concrete panel 10. A plurality of coupling grooves 13 may be formed at regular intervals along the left side of the first precast concrete panel 10. The plurality of coupling grooves 13 provided on the left side may be formed in the same number as the plurality of coupling reinforcing bars 11 provided on the right side.

The plurality of coupling grooves 13 are formed in a shape into which a plurality of coupling reinforcing bars 11 can be inserted. For example, when the coupling rebar 11 is formed of a stud bar 12, the coupling groove 13 is formed in a shape into which the stud bar 12 can be inserted.

The plurality of coupling grooves 13 may be formed in a shape whose cross-sectional area gradually widens from the inlet 13a toward the bottom 13b. For example, as in this embodiment, the coupling groove 13 may be formed in the shape of a square pyramid. In this case, the entrance 13a of the coupling groove 13 is formed in a rectangular shape as shown in FIG. 4. The bottom surface 13b of the coupling groove 13 is formed in a rectangular shape larger than the cross-sectional area of the inlet 13a.

In this way, if the coupling groove 13 is formed so that the inlet 13a has a smaller cross-sectional area than the bottom 13b, the grout 30 filled in the interior of the coupling groove 13 does not flow out, so that the coupling groove 13 The filled grout (30) can be more firmly combined with the U-shaped reinforcing bar (11).

The inlet 13a of the coupling groove 13 is formed to a size into which the stud bar 12 can be inserted.

A plurality of air holes 15 may be provided on the upper surface of the first precast concrete panel 10. The plurality of air holes 15 are formed to correspond to the plurality of coupling grooves 13 formed on the other end surface of the first precast concrete panel 10. That is, one air hole 15 penetrating the upper surface of the first precast concrete panel 10 is provided in one coupling groove 13.

The air hole 15 is formed adjacent to the bottom 13b of the coupling groove 13. Therefore, when filling the coupling groove 13 with the grout 30, the air hole 15 allows the grout 30 to be completely filled up to the bottom 13b of the coupling groove 13.

Similar to the above-described embodiment, a plurality of hoop reinforcing bars 18 and 19 are provided inside the first precast concrete panel 10. A plurality of hoop reinforcing bars 18 and 19 may be arranged to be perpendicular to each other. Specifically, the plurality of hoop reinforcing bars may include a plurality of vertical hoop reinforcing bars 18 arranged side by side at regular intervals and a plurality of horizontal hoop reinforcing bars 19 arranged side by side at regular intervals. The plurality of vertical hoop reinforcing bars 18 and the plurality of horizontal hoop reinforcing bars 19 are arranged to be perpendicular to each other.

A plurality of stud bars 12 may be coupled to adjacent hoop bars 18 and 19. In this way, when the stud bars 12 are coupled to the hoop reinforcing bars 18 and 19, the plurality of stud bars 12 can be firmly fixed to the first precast concrete panel 10.

The second precast concrete panel 10' is installed adjacent to one end of the first precast concrete panel 10. A plurality of coupling reinforcing bars 11 of the first precast concrete panel 10 are inserted into the one end face of the second precast concrete panel 10' facing the one end face of the first precast concrete panel 10. A coupling groove 13 is provided, and a plurality of coupling reinforcing bars 11 protrude from the other end surface.

Specifically, a plurality of coupling grooves 13 into which a plurality of stud bars 12 provided on the right side of the first precast concrete panel 10 are inserted are provided on the left side of the second precast concrete panel 10'. . A plurality of stud bars 12 are provided on the right side of the second precast concrete panel 10'. The plurality of stud bars 12 of the second precast concrete panel 10' may be inserted into a plurality of coupling grooves provided on the left side of another precast concrete panel (not shown).

Since the second precast concrete panel 10' has the same structure as the first precast concrete panel 10 described above, detailed description is omitted.

The grout 30 is injected into the plurality of coupling grooves 13 of the second precast concrete panel 10' into which the plurality of coupling reinforcing bars 11 of the first precast concrete panel 10 are inserted. Since an air hole 15 is formed in each of the plurality of coupling grooves 13, the grout 30 can completely fill each of the plurality of coupling grooves 13.

When the grout 30 is filled into the plurality of coupling grooves 13, the plurality of coupling reinforcing bars 11, that is, the stud bars 12, of the first precast concrete panel 10 are connected to the second precast concrete panel 10'. ) can be fixed to the coupling groove (13).

Grout 30 may also be filled between one side of the first precast concrete panel 10 and one side of the second precast concrete panel 10' facing it.

Hereinafter, a precast concrete panel continuous structure (1) for road pavement according to another embodiment of the present invention will be described with reference to FIGS. 7 to 9.

Figure 7 is a perspective view showing a continuous structure of precast concrete panels for road pavement according to another embodiment of the present invention. Figure 8 is a cross-sectional view of the continuous structure of precast concrete panels for road pavement of Figure 7 taken along line II-II. Figure 9 is a bottom perspective view of the precast concrete panel continuous structure for road pavement of Figure 7. For reference, in order to show the stud bar, Figure 9 shows the grout removed.

Referring to Figures 7 to 9, the precast concrete panel continuous structure 1' for road pavement according to another embodiment of the present invention includes a first precast concrete panel 40 and a second precast concrete panel 40'. may include.

The first precast concrete panel 40 may be formed in a substantially rectangular flat shape. A plurality of coupling reinforcing bars 11 protrude from one end of the first precast concrete panel 40. Specifically, a plurality of coupling reinforcing bars 11 are installed to protrude on the right side of the first precast concrete panel 40. A plurality of connecting reinforcing bars 11 may be formed at regular intervals along the right side of the first precast concrete panel 40.

The plurality of coupling reinforcing bars 11 are formed in the same shape. Some of the plurality of connecting reinforcing bars 11 are fixed to the inside of the first precast concrete panel 40. That is, when the first precast concrete panel 40 is manufactured from concrete, it can be formed integrally with the first precast concrete panel 40.

A plurality of connecting reinforcing bars 11 may be formed as stud bars 12. Here, the stud bar 12 refers to a reinforcing bar or round bar with heads 12a formed at both ends. Half of the stud bar 12 is fixed to the inside of the first precast concrete panel 40, and the other half protrudes from the right side of the first precast concrete panel 40.

A plurality of coupling grooves 41 are formed on one end of the first precast concrete panel 40 and the other end of the first precast concrete panel 40, which is located opposite to the other end face of the first precast concrete panel 40. Specifically, a plurality of coupling grooves 41 are provided on the left side of the first precast concrete panel 40.

A plurality of coupling grooves 41 may be formed at regular intervals along the left side of the first precast concrete panel 40. The plurality of coupling grooves 41 provided on the left side may be formed in the same number as the plurality of coupling reinforcing bars 11 provided on the right side.

The plurality of coupling grooves 41 are formed in a shape into which a plurality of coupling reinforcing bars 11 can be inserted. For example, when the coupling rebar 11 is formed of a stud bar 12, the coupling groove 41 is formed in a shape into which the stud bar 12 can be inserted.

The plurality of coupling grooves 41 are formed with a rectangular cross-section and have an open lower surface. Here, the lower surface of the plurality of coupling grooves 41 refers to the surface corresponding to the lower surface of the first precast concrete panel 40. That is, a plurality of concave coupling grooves 41 with a certain depth are provided on the lower surface of the first precast concrete panel 40. The plurality of coupling grooves 41 are not exposed on the upper surface of the first precast concrete panel 40.

The entrance of the coupling groove 41 is sized so that the stud bar 12 can be inserted. The depth of the coupling groove 41 is formed to a size that can completely accommodate the stud bar 12 protruding from one side of another precast concrete panel 40'.

In each of the plurality of coupling grooves 41, hoop reinforcing bars 48 and 49 buried inside the first precast concrete panel 40 may be exposed.

As shown in FIG. 9, a plurality of hoop reinforcing bars 48 and 49 are provided inside the first precast concrete panel 40. A plurality of hoop reinforcing bars 48 and 49 may be arranged orthogonally. Specifically, the plurality of hoop reinforcing bars may include a plurality of vertical hoop reinforcing bars 48 arranged side by side at regular intervals and a plurality of horizontal hoop reinforcing bars 49 arranged side by side at regular intervals. The plurality of vertical hoop reinforcing bars 48 and the plurality of horizontal hoop reinforcing bars 49 are arranged to be perpendicular to each other.

A plurality of stud bars 12 may be coupled to adjacent hoop reinforcement bars 48 and 49. In this way, when the stud bars 12 are coupled to the hoop reinforcing bars 48 and 49, the plurality of stud bars 12 can be firmly fixed to the first precast concrete panel 40.

As shown in FIG. 9, an end of one horizontal hoop reinforcing bar 49 and a portion of one vertical hoop reinforcing bar 48 may be exposed in each of the plurality of coupling grooves 41.

The second precast concrete panel 40' is installed adjacent to one end of the first precast concrete panel 40. A plurality of coupling reinforcing bars 11 of the first precast concrete panel 40 are inserted into the one end face of the second precast concrete panel 40' facing the one end face of the first precast concrete panel 40. A coupling groove 41 is provided, and a plurality of coupling reinforcing bars 11 protrude from the other cross section.

Specifically, a plurality of coupling grooves 41 are provided on the left side of the second precast concrete panel 40' into which a plurality of stud bars 12 provided on the right side of the first precast concrete panel 10 are inserted. . A plurality of stud bars 12 are provided on the right side of the second precast concrete panel 40'. The plurality of stud bars 12 of the second precast concrete panel 40' may be inserted into the plurality of coupling grooves 41 provided on the left side of another precast concrete panel (not shown).

A plurality of coupling grooves 41 may be formed at regular intervals along the left side of the second precast concrete panel 40'. The plurality of coupling grooves 41 provided on the left side may be formed in the same number as the plurality of coupling reinforcing bars 11 provided on the right side.

The plurality of coupling grooves 41 are formed in a shape into which a plurality of coupling reinforcing bars 11 can be inserted. For example, when the coupling rebar 11 is formed of a stud bar 12, the coupling groove 41 is formed in a shape into which the stud bar 12 can be inserted.

The plurality of coupling grooves 41 are formed with a rectangular cross-section and have an open lower surface. Here, the lower surface of the plurality of coupling grooves 41 refers to the surface corresponding to the lower surface of the second precast concrete panel 40'. That is, a plurality of concave coupling grooves 41 with a certain depth are provided on the lower surface of the second precast concrete panel 40'. The plurality of coupling grooves 41 are not exposed on the upper surface of the second precast concrete panel 40'.

The inlet 41a of the coupling groove 41 is formed to a size into which the stud bar 12 can be inserted. The depth of the coupling groove 41 is formed to a size that can completely accommodate the stud bar 12 protruding from one side of another precast concrete panel.

In each of the plurality of coupling grooves 41, hoop reinforcement bars 48 and 49 buried inside the second precast concrete panel 40' may be exposed.

The second precast concrete panel 40' includes a plurality of hoop reinforcing bars 48 and 49 in the same manner as the first precast concrete panel 40 described above.

Therefore, as shown in FIG. 9, each of the plurality of coupling grooves 41 of the second precast concrete panel 40' has an end 49 of one horizontal hoop reinforcement and one vertical hoop reinforcement 48. Some may be exposed.

In addition, a plurality of stud bars 12 of the first precast concrete panel 40 are accommodated in the plurality of coupling grooves 41 of the second precast concrete panel 40'. The stud bar 12 of the first precast concrete panel 40 interferes with the horizontal hoop reinforcement 49 and vertical hoop reinforcement 48 exposed in the coupling groove 41 of the second precast concrete panel 40'. It is prepared to prevent this from happening.

The grout 30 is injected into the plurality of coupling grooves 41 of the second precast concrete panel 40' into which the plurality of stud bars 12 of the first precast concrete panel 40 are inserted.

When the grout 30 is filled into the plurality of coupling grooves 41, each of the plurality of coupling reinforcing bars 11 of the first precast concrete panel 40, that is, the plurality of stud bars 12, is connected to the second precast concrete panel. It can be fixed to each of the plurality of coupling grooves 41 of (40'). At this time, since some of the hoop reinforcements 48 and 49 are exposed in the plurality of coupling grooves 41 of the second precast concrete panel 40', the plurality of stud bars 12 of the first precast concrete panel 40 ) can be firmly fixed to the second precast concrete panel 40' by the grout 30.

Additionally, the grout 30 may also be filled between one side of the first precast concrete panel 40 and one side of the second precast concrete panel 40' facing it.

Hereinafter, a precast concrete panel continuous structure for road pavement according to another embodiment of the present invention will be described with reference to FIGS. 10 to 12.

Figure 10 is a perspective view showing a continuous structure of precast concrete panels for road pavement according to another embodiment of the present invention. Figure 11 is a cross-sectional view of the continuous structure of precast concrete panels for road pavement of Figure 10 taken along line III-III. Figure 12 is a perspective view of a precast concrete panel used in the continuous structure of precast concrete panels for road pavement of Figure 10.

10 to 12, the precast concrete panel continuous structure (1") for road pavement according to another embodiment of the present invention includes a first precast concrete panel 50 and a second precast concrete panel 50'. may include.

The first precast concrete panel 50 may be formed in a substantially rectangular flat shape. The first precast concrete panel 50 has a plurality of connection grooves 51 and 52 formed on both edges of the upper surface, and a plurality of connection grooves 51 and 52 and a plurality of connection grooves 51 and 52. It includes a plurality of connection holes 53 and 54 formed on both end surfaces.

Specifically, a plurality of connection grooves 51 and 52 are provided in two rows on the upper surface of the first precast concrete panel 50, and are formed adjacent to the left edge and the right edge, respectively. Each of the plurality of connection grooves 51 and 52 is formed at a constant depth so as not to penetrate the first precast concrete panel 50. The connecting grooves 51 and 52 are formed to a size that allows the nut 61 to be fastened to the threaded portion 60a of the connecting rod 60 inserted into the connecting holes 53 and 54. In this embodiment, the connection groove 51.52 is formed with a rectangular cross-section.

The plurality of connection grooves 51 and 52 include a plurality of left connection grooves 52 provided adjacent to the left edge of the upper surface of the first precast concrete panel 50 and a plurality of right connection grooves provided adjacent to the right edge. Includes (51).

The plurality of left connection grooves 52 are formed in a straight line parallel to the left edge of the first precast concrete panel 50 and are spaced apart at regular intervals. The plurality of right connection grooves 51 are formed in a straight line parallel to the right edge of the first precast concrete panel 50 and are spaced apart at regular intervals. The plurality of left connection grooves 52 and the plurality of right connection grooves 51 may be formed at equal intervals.

The plurality of connection holes 53 and 54 include a plurality of left connection holes 54 formed on the left side of the first precast concrete panel 50 and a plurality of right connection holes 53 formed on the right side.

The plurality of left connection holes 54 are formed to communicate with the plurality of left connection grooves 52. The plurality of right connection holes 53 are formed to communicate with the plurality of right connection grooves 51.

The second precast concrete panel 50' is installed adjacent to one end of the first precast concrete panel 50. The second precast concrete panel 50' is formed with the same structure as the first precast concrete panel 50.

Accordingly, the second precast concrete panel 50' has a plurality of connection grooves 51 and 52 formed on both edges of the upper surface and a plurality of connection grooves 51 and 52 formed on both end surfaces to communicate with the plurality of connection grooves 51 and 52. Includes connection holes 53 and 54.

A plurality of connecting rods 60 are installed to connect the first precast concrete panel 50 and the second precast concrete panel 50'.

Specifically, the plurality of connection rods 60 have a plurality of connection holes 53 and 54 formed on one end of the first precast concrete panel 50 and one end of the second precast concrete panel 50' facing each other. is inserted into At both ends of the connecting rod 60, threaded portions 60a having male threads are provided. By fastening the nuts 61 to the threaded portions 60a at both ends of each of the plurality of connecting rods 60, the first precast concrete panel 50 and the second precast concrete panel 50' can be coupled.

10 and 11, the right side of the first precast concrete panel 50 and the left side of the second precast concrete panel 50' are installed to face each other. At this time, the plurality of connection holes 53 provided on the right side of the first precast concrete panel 50 and the plurality of connection holes 54 provided on the left side of the second precast concrete panel 50 are installed to coincide with each other. .

Therefore, a plurality of connection rods 60 are connected to the plurality of connection holes 53 on the right side of the first precast concrete panel 50 and the plurality of connection holes 54 on the left side of the second precast concrete panel 50'. can be inserted.

The male screws 60a at the left ends of the plurality of connecting rods 60 protrude into the plurality of right connecting grooves 51 of the first precast concrete panel 50, and the male threads 60a at the right ends of the connecting rods 60 are It protrudes into a plurality of left connection grooves 52 of the second precast concrete panel 50'.

The nut 61 is fastened to the left end male screw 60a of the plurality of connecting rods 60 through the plurality of right connecting grooves 51 of the first precast concrete panel 50, and the second precast concrete panel 50 The nut 61 is fastened to the right end male screw 60a of the plurality of connecting rods 60 through the plurality of left connecting grooves 52 ('). Then, the first precast concrete panel 50 and the second precast concrete panel 50' can be firmly connected.

By filling the plurality of connection grooves 51 and 52 of the first precast concrete panel 50 and the second precast concrete panel 50' with grout 30, the plurality of connection grooves 51 and 52 are filled. The top surface of the grout 30 is flush with the top surfaces of the first and second precast concrete panels 50 and 50'.

Hereinafter, a construction method of a continuous precast concrete panel structure for road pavement according to an embodiment of the present invention will be described with reference to FIGS. 13A to 13E.

Figures 13A to 13E are diagrams for explaining the construction method of a continuous structure of precast concrete panels for road pavement according to an embodiment of the present invention.

First, the subbase layer 101 of the road 100 is smoothened.

In the case of a new road, the work of smoothing the subbase 101 is performed first. However, when installing precast concrete panels on an existing road, the work of removing the pavement within the construction section of the existing road is first performed.

Next, the first precast concrete panel 10 is installed on the upper surface of the subbase 101.

For example, a first precast concrete panel 10 is installed on the upper surface of the subbase 101, with a plurality of coupling reinforcing bars 11 on one end and a plurality of coupling grooves 13 on the other end. .

Next, a second precast concrete panel 10' is installed on one side of the first precast concrete panel 10 and on the upper surface of the subbase 101.

For example, a plurality of coupling reinforcing bars 11 protruding from the right side of the first precast concrete panel 10 are inserted into a plurality of coupling grooves 13 provided on the left side of the second precast concrete panel 10'. If possible, install the second precast concrete panel (10').

Finally, the plurality of coupling grooves 13 of the second precast concrete panel 10' are filled with grout 30. Then, since the plurality of connecting reinforcing bars 11 of the first precast concrete panel 10 are coupled to the second precast concrete panel 10' by the grout 30, the first precast concrete panel 10 and The second precast concrete panels 10' are firmly connected to each other.

In order to fill the grout 30, the second precast concrete panel 10' has a plurality of coupling reinforcing bars 11 of the first precast concrete panel 10 at one end where a plurality of coupling grooves 13 are formed. It can be installed at a certain distance from the provided surface. Grout 30 can be filled into the plurality of coupling grooves 13 through the gap between one end of the first precast concrete panel 10 and one end of the second precast concrete panel 10'. Additionally, the gap between one end of the first precast concrete panel 10 and one end of the second precast concrete panel 10' can also be filled with grout 30.

As described above, the precast concrete panel continuous structure for road paving according to an embodiment of the present invention includes a plurality of coupling rebars provided on one side of the precast concrete panel and a plurality of coupling grooves provided on one side of the adjacent precast concrete panel. After inserting it into the panel, two adjacent precast concrete panels can be firmly joined by joining them with grout.

In addition, the continuous structure of precast concrete panels for road pavement according to an embodiment of the present invention connects a plurality of connection grooves provided on the upper surface of the precast concrete panel and a plurality of connection holes provided on one side to the upper surface of another adjacent precast concrete panel. By inserting a plurality of connecting rods into the plurality of connection grooves and the plurality of connection holes provided on one side and fastening them with a plurality of nuts, two adjacent precast concrete panels can be firmly joined.

Therefore, by reliably connecting a plurality of precast concrete panels using the above-described method, concrete road pavement using a plurality of precast concrete panels can be implemented.

The invention has been described above in an exemplary manner. The terms used herein are for descriptive purposes and should not be construed in a limiting sense. According to the above contents, the present invention may be modified or modified in various ways. Therefore, unless otherwise stated, the present invention may be freely implemented within the scope of the claims.

1,1',1": Precast concrete panel continuous structure for road paving
10,40,50; 1st precast concrete panel
11; Combined rebar 12; stud bar
13; coupling groove 15; air hole
20; rebar 21; through hole
30; grout 41; Combined groove
48,49; loop rebar 51,52; connection home
53,54; connection hole 60; connecting rod
61; nut 101; subbase

Claims (6)

A first precast concrete panel in which a plurality of coupling reinforcing bars protrude from one end surface and a plurality of coupling grooves are formed on the other end surface;
It is installed adjacent to one end of the first precast concrete panel, and on one end facing the first precast concrete panel, a plurality of coupling grooves are provided into which a plurality of coupling reinforcing bars of the first precast concrete panel are inserted. A second precast concrete panel with a plurality of bonding reinforcing bars protruding from the other cross section; and
Grout filled in the plurality of coupling grooves of the second precast concrete panel into which the plurality of coupling reinforcing bars of the first precast concrete panel are inserted. Precast concrete panel continuous structure for road paving, comprising:
According to claim 1,
A precast concrete panel continuous structure for road paving, wherein the plurality of combined reinforcing bars are formed of U-shaped reinforcing bars or stud bars.
According to claim 1,
A precast concrete panel continuous structure for road paving, characterized in that the plurality of coupling grooves are formed in a shape whose cross-sectional area gradually widens from the entrance to the floor.
According to claim 1,
The lower surfaces of the plurality of coupling grooves are open, and the hoop reinforcement embedded in each of the first precast concrete panel and the second precast concrete panel is exposed in each of the plurality of coupling grooves. Precast concrete panel continuous structure for paving.
A first precast concrete panel including a plurality of connection grooves formed on both edges of the upper surface and a plurality of connection holes formed on both end surfaces to communicate with the plurality of connection grooves;
A panel is installed adjacent to one end of the first precast concrete panel and includes a plurality of connection grooves formed on both edges of the upper surface, and a plurality of connection holes formed on both end surfaces to communicate with the plurality of connection grooves. 2Precast concrete panels;
a plurality of connection rods inserted into the plurality of connection holes on one end of the first precast concrete panel and the plurality of connection holes on one end of the second precast concrete panel facing each other, and having male threads formed at both ends; and
A precast concrete panel continuous structure for road paving, comprising a plurality of nuts coupled to male threads at both ends of the plurality of connecting rods.
A step of smoothing the subbase of the road;
Installing a first precast concrete panel having a plurality of bonding reinforcing bars on one end surface on the upper surface of the subbase;
Installing the second precast concrete panel so that the plurality of coupling reinforcing bars of the first precast concrete panel are inserted into the plurality of coupling grooves of the second precast concrete panel; and
Serializing precast concrete panels for road paving, comprising: filling the plurality of coupling grooves of the second precast concrete panel with grout to join the first precast concrete panel and the second precast concrete panel. Construction method of the structure.

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