KR102249391B1 - Method for constructing Precast Concrete Driving Road Block with Rubber Wheel AGT - Google Patents

Abstract

The present invention relates to a method of constructing a precast concrete road block for a rubber wheel AGT, wherein the cross section of the running road is made in a rectangular shape regardless of the straight section and the curved section, and the ground surface of the wheel can be inclined by grout filling in the curved section. It aims to improve the fabrication and workability of blocks by matching.
The method of constructing a precast concrete road block of a rubber wheel AGT according to the present invention includes a road block body in the form of a hexahedron having a rectangular cross section parallel to each other with two sides facing each other with the same length. It includes a leveling means consisting of a nut buried inside and a leveling bolt that is screwed to the nut and the bottom is supported by the roadbed, thereby separating the road block body from the roadbed and adjusting the height of the road block body. A method for constructing a precast concrete road block of a rubber wheel AGT that maintains a parallel rectangle in the upper and lower portions regardless of a curved section, comprising: a first step of mounting the precast concrete road block of the rubber wheel AGT on a construction site; A second step of maintaining the slope of the precast concrete road block of the rubber wheel AGT through a leveling means and adjusting the height through leveling operation; A grout material is injected through the grouting hole of the precast concrete track block of the rubber wheel AGT between the bottom of the precast concrete track block of the rubber wheel AGT and the roadbed with the height adjusted through the second step. Including a third step of fixing the precast concrete road block of the wheel AGT on the roadbed, and in the curved section, the precast concrete road block of the rubber wheel AGT is arranged so that the bottom part is inclined with respect to the roadbed and incline through the leveling means. To form a space between the roadbed in an inclined manner, and inject a grout material into the space to construct the precast concrete road block of the rubber wheel AGT, but the free of the rubber wheel AGT disposed on the inside and the outside, respectively. After forming a grouting space of the same size by making the cross-sectional areas of the cast concrete road blocks different from each other, grouting, or on the contrary, make the cross-sectional area of the precast concrete road block of the rubber wheel AGT disposed on the inside and the outside, respectively, and After forming grouting spaces of different sizes on the outside, grouting is carried out.

Description

Method for constructing Precast Concrete Driving Road Block with Rubber Wheel AGT}

The present invention relates to a method of constructing a precast concrete road block for a rubber wheel AGT, and more particularly, the cross section of the roadway is produced in a rectangular shape regardless of the straight section and the curved section, and the wheel ground plane by grout filling in the curved section. It relates to the construction method of the precast concrete track block of the rubber wheel AGT that is installed according to the cant of.

This part provides background information related to the content of the present application, and is not necessarily prior art.

In general, light rail is a state-of-the-art trajectory transportation system that has medium-sized transportation requirements between buses and subways.It is collectively referred to as an automatic guided vehicle (AGT), a new streetcar (SLRT), and a monorail (magnetic levitation method). With 5,000-30,000 people, it has the same transport capacity as a six-lane road, and the construction cost is 1/3-1/5 of that of the existing subway, enabling low-budget construction and maximizing urban revitalization.

In addition, it is an eco-friendly means of transportation with characteristics of punctuality, safety and low pollution compared to road transportation by operating on an independent track compared to the existing road transportation means such as buses or private vehicles. In addition, it is being used as a means of transportation to access large-scale transportation inducing facilities such as airports.

Since most of the light railroads described above are built underground and at elevated prices in the city, the running path is complexly configured with many vertical and flat curve changes, and is precise to have an appropriate slope according to the lateral and longitudinal slopes of the light rail track. It must be constructed properly.

In addition, in the above-described construction method of the rubber wheel AGT, a track construction of installing a guide track (guide rail) next to the running path is also carried out.

Conventional rubber wheel running paths use a continuous reinforced concrete pavement method (CRCP, Continuously Reinforced Concrete Pavement).This pavement method is used for concrete bleeding, concrete cracks and flaking due to on-site casting, and the running surface (wheel ground plane) when constructing rapid curves. ) There is a problem of poor transportation due to deformation and low slump in concrete, and for this, the precast road pavement method of on-site installation through factory manufacturing is applied.

The conventional rubber wheel AGT's precast concrete road block pavement method and the precast concrete track have the following problems.

Precast concrete tracks are manufactured in different shapes to be installed in straight and curved sections.

1 is a construction state in a straight section, and Figure 2 is a construction state in a curved section.

As shown in Fig. 1, a pair of left and right precast concrete running paths 1 and 2 in a straight section is a rectangle with the two sides facing the same length, but as shown in Fig. 2, a pair of left and right precasts in a curved section Concrete roads 1-1 and 2-1 have two sides facing each other with different lengths, because the cant of the roads is matched through the slope of the wheel tread. That is, when constructing a curved section, the cant must be aligned on both the left and right driving paths, and in this way, a method of manufacturing the upper wheel tread surface inclined while maintaining the lower surface of the driving path is selected. Therefore, in order to manufacture the running path, it is necessary to manufacture a 3D-shaped formwork that makes an upper slope between the two formwork on the left and the right, so there is a difficulty in the production of the formwork, and the productivity decreases in the end.

And, the length of the facing side of the lower and the upper part of the curved section and the length of the facing side of the left and right are different from each other, and one of the left and right sides is a relatively high shape, and there is a slump characteristic of concrete. There is a problem that the inclination of the upper wheel ground plane is destroyed.

In addition, according to the prior art, the upper surface exposed to the outside when manufacturing the precast concrete running path is the wheel ground plane, and the flatness of the wheel ground plane is not good due to the characteristics of concrete pouring, so the ride comfort is degraded, so the wheel ground plane after curing There is also a problem that requires a chamfering process.

Registered Patent No. 10-1791986

The present invention is to solve the above-described problems, by forming a grouting space in an inclined manner without manufacturing the wheel tread surface of a precast concrete running path inclined in a curved section, and fitting the cant through a method of grouting. The purpose of this is to provide a method of constructing a precast concrete track block for the improved rubber wheel AGT.

The method of constructing a precast concrete road block of a rubber wheel AGT according to the present invention includes a road block body in the form of a hexahedron having a rectangular cross section parallel to each other with two sides facing each other with the same length. It includes a leveling means consisting of a nut buried inside and a leveling bolt that is screwed to the nut and the bottom is supported by the roadbed, thereby separating the road block body from the roadbed and adjusting the height of the road block body. A method for constructing a precast concrete road block of a rubber wheel AGT that maintains a parallel rectangle in the upper and lower portions regardless of a curved section, comprising: a first step of mounting the precast concrete road block of the rubber wheel AGT on a construction site; A second step of maintaining the slope of the precast concrete road block of the rubber wheel AGT through a leveling means and adjusting the height through leveling operation; A grout material is injected through the grouting hole of the precast concrete track block of the rubber wheel AGT between the bottom of the precast concrete track block of the rubber wheel AGT and the roadbed with the height adjusted through the second step. Including a third step of fixing the precast concrete road block of the wheel AGT on the roadbed, and in the curved section, the precast concrete road block of the rubber wheel AGT is arranged so that the bottom part is inclined with respect to the roadbed and incline through the leveling means. To form a space between the roadbed in an inclined manner, and inject a grout material into the space to construct the precast concrete road block of the rubber wheel AGT, but the free of the rubber wheel AGT disposed on the inside and the outside, respectively. After forming a grouting space of the same size by making the cross-sectional areas of the cast concrete road blocks different from each other, grouting, or on the contrary, make the cross-sectional area of the precast concrete road block of the rubber wheel AGT disposed on the inside and the outside respectively, and It is characterized in that the grouting spaces of different sizes are formed on the outside and then grouted to be constructed.

According to the method of constructing the precast concrete road block of the rubber wheel AGT according to the present invention, all sides of the precast concrete track are manufactured in a slope-free structure, and the track of the curved section is installed in an inclined manner according to the cant of the track. Since it is implemented, it is possible to eliminate the defects of the conventional precast concrete running path having its own slope, so there is an effect of facilitating the production of a formwork and commercialization of concrete.

And, according to the construction method of the present invention, since the driving paths on the inside and outside of the curved section differ only in height, the wheel treads are manufactured horizontally without cant, so that the driving paths of different heights can be manufactured with a single formwork. It has the effect of improving the handling and productivity of the running path.

In addition, by making concrete by turning the precast concrete running path upside down, there is an effect of improving the ride comfort and productivity due to the omission of the chamfering process by securing the flatness of the wheel tread without a separate chamfering process.

In addition, since the left and right sides maintain the same height when making the concrete of the driving path, the inclination of the wheel tread surface is not destroyed, so there is an effect of improving the driving performance.

1 is a view showing an example in which a precast concrete running path according to the prior art is installed in a straight section.
2 is a view showing an example in which a precast concrete running path according to the prior art is installed in a curved section.
3 is a plan perspective view of a precast concrete running path for a guide rail type rubber wheel AGT applied to the present invention.
Figure 4 is a bottom perspective view of the precast concrete running path for the guide rail type rubber wheel AGT applied to the present invention.
Figure 5 is a view showing the longitudinal connection state of the precast concrete road block of the rubber wheel AGT applied to the present invention.
Figure 6 is a plan view showing the precast concrete road for a straight section and a curved section of the precast concrete road block of the rubber wheel AGT applied to the present invention.
7 is a view showing a leveling bolt applied to the precast concrete road block of the rubber wheel AGT applied to the present invention.
Figure 8 is a straight section construction state of the precast concrete road block of the rubber wheel AGT applied to the present invention.
Figure 9 is a construction state diagram of a curved section of the precast concrete road block of the rubber wheel AGT applied to the present invention.
10 is a view showing an example in which a connection bolt for connection with a construction jig is applied to the precast concrete road block of the rubber wheel AGT applied to the present invention.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout the present specification.

First, a precast concrete road block of the rubber wheel AGT applied to the construction method according to the present invention will be described.

The rubber wheel AGT's precast concrete track block 10 (hereinafter abbreviated as “runway block”) is a reinforced concrete product and has a hexahedral shape that is longer in front and rear than the left and right width, and the two sides facing each other are parallel and identical. It is made of a rectangle of length, and both the straight section and the curved section maintain such a rectangle, and the cant is matched by grouting that is filled between the roadbed and the roadbed. FIG. 4 shows an example of a curved section. Although the cross-sectional area of the inner (left side of the drawing) and the outer running path are different and the grouting space is the same, it is not limited thereto. It is also possible to form a different size of the grouting space while having the same cross-sectional area of the running path on the side.

The running path block 10 firmly fixes and adjusts the cant to the roadbed through grouting (injection and hardening of the grout material), and for this purpose, one or more grouting injection holes 11 are provided.

That is, the travel path block 10 is configured with a travel path body maintaining a rectangular cross section, and a grouting injection hole 11 is formed in the travel path body.

The grouting injection hole 11 is a hole formed in the traveling path block 10 so that the upper and lower portions (the upper portion of the injection side and the lower portion of the discharge side) communicate with the outside. In addition, it is also possible to apply one or more overeat holes to confirm the injection of the grout material.

A sealing strip 12 is added to the bottom of the running path block 10 to prevent the grout material injected through the grouting injection hole 11 from leaking to the outside.

The sealing strip 12 is made of a thickness sufficient to form a grouting space between the bottom of the road block 10 and the roadbed, and also elasticity capable of contraction and expansion so that the left and right heights can vary according to the cant. It is made of a material (rubber, etc.), and is attached to the bottom edge of the road block 10.

The sealing strip 12 is not necessarily applied, but is selected and applied as needed.

If the sealing strip 12 is not applied, a formwork for grouting may be applied.

Alternatively, a grouting groove may be formed in the roadbed to form a wall of the grouting groove without installing a formwork, so that grouting can be performed in the groove.

A plurality of running path blocks 10 are continuously installed along the longitudinal direction according to the running path of the AGT, and as shown in FIG. 5, a dowel bar 20 for tightening the running path blocks 10 connected along the longitudinal direction. (Steel bar, etc.) can be used.

Dowel bar binding portions 13 for binding the dowel bars 20 are formed on both front and rear sides of the travel path block 10.

The dowel bar coupling part 13 is in the form of a groove that is open to the outside, a block-out form, etc., and one dowel bar is attached to the dowel bar coupling parts 13 of the two running path blocks 10 connected along the longitudinal direction. (20) is bound to bind the road blocks (10),

In addition, an elastic joint material 30 (for example, a rod-shaped backup material, a sealing material) may be applied between the running path blocks 10 connected along the longitudinal direction.

The driving path block 10 is manufactured in various shapes according to the driving path of the AGT, and as shown in FIG. 6, it is manufactured in a straight type and a curved type of various curvatures.

The running path block 10 is leveled through the leveling means 40. The leveling standard of the road block 10 is guide rails 1 (shown in Figs. 8 and 9) installed on both sides of the roadbed. Of course, when the guide rail 1 is installed after the construction of the running road block 10, the running road block 10 is the reference of the guide rail 1 on the contrary.

As shown in Figure 7, the leveling means 40 is a nut 41 buried in the inside of the road block 10 (or a female threaded portion formed directly on the road block 10), screwed to the nut 41 It consists of a leveling bolt 42 to be fastened.

The nut 41 is applied in an insert method that is pre-installed in the formwork when manufacturing the road block 10 and is integrated when curing the concrete, and at least one wing 41a on the periphery so as not to be separated from within the road block 10 Is composed.

It is preferable that a total of four nuts 41 and two leveling bolts 42 are applied to the front and rear sides of the running path block 10, respectively.

The leveling bolt 42 is screwed to the nut 41 and the bottom is supported by the roadbed (grouting groove described above) so that the road block 10 is separated from the roadbed, and screwed to the nut 41 so that it can be rotated in both directions. As a result, the height (height based on the roadbed) of the road block 10 is adjusted by ascending or descending.

The leveling bolt 42 is more than the minimum length for height adjustment of the road block 10 and thus may be shorter than the length (height) of the nut 41, and the height adjustment work outside of the road block 10 A tool groove 42a is formed in the head to enable this.

The leveling bolt 42 has a length greater than that of the nut 41, so that the bottom and the head may protrude to the lower and upper portions of the running path block 10, respectively, and in this case, the grouting of the bottom of the running path block 10 is cured. It is removed from the road block 10 before it becomes.

The leveling bolt 42 may be removed from the road block 10 after grouting the road block 10 and be reused.

The running road block 10 of the present invention is manufactured through the process of making a formwork-reinforcing reinforcement-pouring concrete-curing-demolding the form-running road block 10 upside down. There is a difference in that the upside-down process of) is added and there is no chamfering process.

That is, when manufacturing a formwork for concrete production of the road block 10, the bottom of the formwork corresponds to the wheel ground surface, which is the upper surface of the road block 10, and the upper part exposed to the outside until concrete curing is the road block. It is the bottom of (10). Therefore, after curing the road block 10, the formwork is demolded, and the upper and lower parts of the road block 10 are turned over so that the wheel ground surface faces the top, and through this manufacturing, the wheel ground of the road block 10 Since the surface maintains a flat surface without irregularities, the conventional chamfering process is eliminated.

In addition, since the two sides facing both the straight section and the curved section are parallel and have the same length, the running path block 10 of the present invention can be manufactured without making a three-dimensional formwork, and it is possible to manufacture only a single type of formwork. .

The running path block 10 may be configured with one or more protrusions or grooves (both integrated and assembled) for synthesis with a grout material filled between the roadbed.

On the other hand, if the leveling bolt 42 is fastened only to the lower side of the nut 41, the upper side of the nut 41 can be used as a space for fastening a connection bolt for connecting the travel path block 10 with the construction jig.

As shown in FIG. 10, the running path block 10 may include a connecting bolt 50 as a connecting means for connection with a construction jig 2 (referring to all equipment carrying and mounting the running path block 10). have.

The connection bolt 50 is fastened to the construction jig and the nut 41 of the leveling means 40 to connect the travel path block 10 to the construction jig 2 and of course, by being separated from the nut 41, the travel path block 10 ) From the construction jig (2).

In this way, the leveling bolt 42 and the connection bolt 50 are fastened to the nut 41 at different heights at the bottom and the top, that is, the connection bolt 50 is fastened to the top of the leveling bolt 42, and the leveling bolt ( Even if 42) is not visible, it is possible to transport, mount, and level the road block 10 by the following method.

It is transported and mounted to the construction position while connecting the driving path block 10 to the construction jig 2 through the four connecting bolts 50. Of the four connecting bolts 50, two connecting bolts 50 arranged diagonally are first unscrewed and removed from the road block 10, and the corresponding two leveling bolts 42 (the removed connecting bolts 50 The one at the bottom) is manipulated to level the road block 10.

Since the two leveling bolts 42 arranged diagonally in this way are disposed on the inside and outside in the curved section, leveling is possible even when constructing the curved section. Of course, leveling of the road block 10 is possible even in a straight section through the same method.

One of the remaining two connection bolts 50 is removed from the travel path block 10 and the corresponding leveling bolt 42 is operated to level the travel path block 10.

Finally, the fourth connection bolt 50 is removed from the travel path block 10 and the corresponding leveling bolt 42 is operated to level the travel path block 10.

This completes the leveling of the travel path block 10.

The above-described leveling method is only an example, and after removing all of the connecting bolts 50 first, the construction jig 2 is separated from the driving path block 10, and then the driving path block 10 is operated by operating the leveling bolt 42. It is also possible to level.

The construction method of the precast concrete road block of the rubber wheel AGT according to the present invention is as follows.

1. Mounting the track.

The road block 10 is transported to the construction location and mounted. The running path block 10 is a pair arranged left and right according to the wheel of the AGT, and is mounted accordingly.

2. Leveling the roadway.

The height of the road block 10 is adjusted by manipulating the leveling bolt 42 of the road block 10. Specifically, the leveling bolt 42 is in a state where the bottom portion is supported by the roadbed, and the upper portion of the nut 41 Insert the tool into the nut (41) at the end, connect the tool to the tool groove of the leveling bolt (42) and turn it, the leveling bolt (42) rotates and falls out to the bottom of the path block (10) or By acting to be inserted into the inside of (10), the height of the travel path block (10) is adjusted.

In a straight section, since the left and right of the road block 10 are leveling the same, the leveling bolts 42 on the left and right are the same height, and in a curved section, the left and right leveling bolts 42 are different because the left and right of the road block 10 are leveling differently. Are of different heights. That is, the straight section and the curved section have different heights (volumes) of the grouting space.

3. Grouting of the roadway.

A grout material (no shrinkage) is injected into the grouting space between the road block 10 and the roadbed through the grouting injection hole 11 of the road block 10 to grout.

The grout material is filled between the bottom of the road block 10 and the roadbed through the grouting injection hole 11, and is formed by the sealing strip 12 installed at the bottom edge of the road block 10. It is grouted without leaking to the outside, and after filling the grouting space, it is overlit to the outside of the running path block 10 through the overeat hole, and at this time, grouting is stopped.

When the leveling bolt 42 is reused, the leveling bolt 42 is pulled out from the nut 41 of the road block 10 to the top before curing of the grout material, since the road block 10 is supported through the grout body at this time. Even if the leveling bolt 42 is removed from the travel path block 10, the travel path block 10 maintains its height.

In this way, the individual road blocks 10 are constructed on the roadbed.

On the other hand, a plurality of road blocks 10 are continuously constructed along the route, and at this time, the dowel bar 20 is inserted into the dowel bar binding portion 13 of the traveling road block 10 connected along the longitudinal direction. The road blocks 10 are connected. In this process, the dowel bar binding portion 13 may be grouted in order to increase the binding force of the travel path block 10 by the dowel bar 20.

In the present invention, an anchor may be applied to increase the anchoring power of the travel path block 10.

After removing the leveling bolt 42 from the nut 41 (before complete curing of grouting), an anchor groove is formed in the ground below the roadbed (for example, 10cm deep below the roadbed) while communicating with the hole of the nut 41 And install an anchor in this anchor groove. The anchor is preferably fixed in the ground around the anchor groove by expanding the sleeve by tightening the nut.

After fixing the anchor, a filler such as mortar may be filled in the anchor groove.

10: road block, 11: grouting injection hole
12: sealing strip, 13: dowel bar binding part
20: dowel bar, 30: expansion joint
40: leveling means, 41: nut
42: leveling bolt, 50: connecting bolt

Claims (5)

The two sides facing up and down and left and right have the same length and are parallel to each other and have a hexahedral shape of a road block body, a nut buried in the road block body, and a nut embedded in the body and screwed to the nut, and the bottom is supported by the roadbed. Free of rubber wheel AGT that includes a leveling means consisting of leveling bolts that separates the road block body from the roadbed and adjusts the height of the road block body, and maintains a parallel rectangle in the upper and lower portions regardless of the straight section and the curved section. As a construction method of a cast concrete track block,
A first step of mounting the precast concrete road block of the rubber wheel AGT on a construction site;
A second step of maintaining the slope of the precast concrete road block of the rubber wheel AGT through a leveling means and adjusting the height through leveling operation;
A grout material is injected through the grouting hole of the precast concrete track block of the rubber wheel AGT between the bottom of the precast concrete track block of the rubber wheel AGT and the roadbed with the height adjusted through the second step. Including a third step of settling the precast concrete road block of the wheel AGT on the roadbed,
In the curved section, the precast concrete road block of the rubber wheel AGT is arranged so that the bottom is inclined with respect to the roadbed, and the slope is maintained through the leveling means to form a space between the roadbed to be inclined, and grout material is injected into the space. And construct the precast concrete road block of the rubber wheel AGT,
Grouting after forming a grouting space of the same size by having different cross-sectional areas of the precast concrete road blocks of the rubber wheel AGT disposed on the inside and outside, respectively,
In the first step, a grouting groove is formed in the roadbed, and the precast concrete road block of the rubber wheel AGT is mounted in the grouting groove, and in the second step, the rubber is formed on the basis of the grouting groove through the leveling means. A rubber wheel, characterized in that the height of the precast concrete road block of the wheel AGT is adjusted, and the third step is to grout by injecting a grout material into the grouting groove using the wall of the grouting groove as a formwork without installing a formwork. AGT's precast concrete track block construction method. The method according to claim 1, wherein the precast concrete road block of the rubber wheel AGT is continuously constructed along the longitudinal direction, and the precast concrete road block of the rubber wheel AGT connected to each other is bound with a dowel bar, and the rubber wheel AGT is free. A precast concrete road block construction method of a rubber wheel AGT, characterized in that an expansion joint is installed between the cast concrete road blocks. The precast concrete road block of the rubber wheel AGT according to claim 1 or 2, wherein an anchor is inserted and installed to be settled under the roadbed through a hole penetrating up and down in the precast concrete road block of the rubber wheel AGT. A method of constructing a precast concrete road block for rubber wheels AGT, characterized in that. The method of claim 3, wherein an anchor groove is formed to a depth lower than that of the roadbed, and the anchor is inserted and fixed in the anchor groove.



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