KR101557612B1 - PC Concrete Pannel For Wear Resistant and Manufacturing Method Thereof - Google Patents

Abstract

The present invention relates to a precast concrete panel having a discontinuous front end surface, which is used in a road for testing a driving performance of a vehicle such as a test of abrasion and sliding, forms a tile segment to have a noncontinuous front end surface, an integrally manufactures the precast with a concrete plate. The present invention also relates to a manufacturing method of the precast concrete panel. A preferable embodiment of the the precast concrete panel having a noncontinuous front end surface includes a panel par, a concrete plate, a routing injection pipe, and a height adjusting member.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete panel having a discontinuous front section,

The present invention relates to a precast concrete panel having a discontinuous front section and a manufacturing method thereof, and more particularly to a precast concrete panel having a discontinuous front section and a tile segment, To a precast concrete panel having a discontinuous front section and a method for manufacturing the precast concrete panel.

Generally, in order to test the driving performance of a vehicle such as abrasion resistance of a tire of an automobile and slip test, a panel having a separate tile is formed on the top of the ground.

The panel tiles to be used here are generally materials that can overcome the load of the vehicle and exhibit low friction performance. Most of the automobile tests in Korea are mainly used for Basalt Tile (Czech basalt) .

However, such a conventional panel is problematic in that, when the panel and the panel are continuously mounted on the construction surface, the front end faces of the panels are continuously connected to each other during construction, The panel height can not be adjusted on the construction surface when the panel is enlarged.

As a background of the present invention, there is a patent registration No. 0895868 entitled " a bar-shaped member for wear resistance and a construction method using the same, " 6, a cushion pad 160 is provided at a lower portion thereof, a plurality of coupling grooves 111 and 111a are formed at an outer side thereof, and a plurality of fixing pins A body 110 protruding from the body 113; A plurality of engaging pins 120 and 120a for engaging a plurality of the bodies 110, which are fitted in the engaging recesses 111 and 111a and arranged so that their outer surfaces are in contact with each other; A net 130 housed in a bottom surface of the body 110; A mortar 140 filled in the body 110; And a plurality of bar-tack tiles 150 fixed to the body 110 by the mortar 140. The bar-tack tiles 150 are fixed to the fixing pins 113 A through hole 151 is provided at a corresponding position to be inserted into the through hole 151 and a socket 170 inserted into the through hole 151 while being fixed to the upper end of the fixing pin 113, And a cover 180 is provided on the upper portion of the bar tack 150 to maintain the same level as the top surface of the bar tack 150. In the bar malting member for abrasion, A locking protrusion 121 is formed on both sides of the coupling pins 120 and 120a so as to be fitted into the locking groove 112 and a cutout groove 122 is formed in the lower center thereof in the vertical direction A bar-shaped member for abrasion resistance is proposed.

However, in the background art, there is a problem in that when the automobile is driven in a car, a phenomenon such as segregation occurs on a continuous front surface due to the fact that the front surface is continuous on the construction surface due to the absence of a square, There is a problem that the height with the construction surface can not be adjusted.

Patent No. 0895868 entitled "Bar-shaped member for abrasion resistance and construction method using the same"

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a tile segment having a discontinuous front section and being integrally formed with a precast concrete plate, Thereby increasing the in-plane shear force and facilitating the adjustment of the height of the large-sized panel, which is manufactured as a unit by constructing a height adjusting member, and a thin concrete plate inside which the hoop rope for stress dispersion is integrally formed with the height adjusting member The present invention also provides a precast concrete panel having a discontinuous front surface for facilitating stress dispersion, and a method for manufacturing the precast concrete panel.

The present invention is characterized in that a plurality of tile segments in the advancing direction and a plurality of tile segments in the column direction are arranged so that their front end faces are staggered in a row direction in the direction of the horizontal direction of the tile segments and in the column direction perpendicular to the advancing direction, And a height adjustment opening in which a plurality of tile segments are radially symmetric with respect to the injection opening so that the tile segments are omitted; And the panel portion is formed in the same plane as the panel portion with concrete having a predetermined thickness at the lower portion of the panel portion. In the portion where the injection opening portion and the height adjustment opening portion are formed, grooves are formed in the upper surface, A concrete plate on which a height adjusting groove is formed; A grouting injection pipe which is formed in a cylindrical shape having a through hole at a central portion thereof and which is inserted through the central portion of the injection groove of the concrete plate so as to expose the upper end portion and the lower end portion; A cylindrical sleeve which is coupled to the upper surface of the bearing plate so that the through hole of the bearing plate is aligned with the engaging hole of the bearing plate by forming a nut groove on the inner circumferential surface of the engaging hole, A stress dispersing hoop having a plurality of spiral axes which are coupled to one side of the sleeve and bent at a point spaced horizontally by a downward slope so as to be coupled to the upper surface of the bearing plate, And a height adjustment bolt which is bolted to the sleeve so that the lower end protrudes to the lower portion of the sleeve, and a height adjustment bolt , A lower portion of the height adjusting groove of the concrete plate, To provide a precast concrete panel having a discontinuous front end surface being configured to; and the upper and lower ends of the air discharge pipe height adjusting member which is embedded so as to be exposed, respectively.

The present invention also provides a precast concrete panel having a discontinuous front section, wherein two front sections of the tile segments in the column direction are staggered with respect to one tile segment in the traveling direction.

The present invention also provides a precast concrete panel having a discontinuous front section, characterized in that the injection groove and the height adjusting groove protrude inwards from the inner side surface to form a mounting tuck.

The present invention also provides a precast concrete panel having a discontinuous front section, wherein the height adjusting bolt of the height adjusting member is formed in a shape having a lower end.

(A) a plurality of tile segments in the direction of the horizontal direction and a column direction perpendicular to the direction of travel, and a plurality of tile segments in the advancing direction and a column direction The tile segments of the tile segments are arranged to be staggered with respect to each other, and a joint forming member is sandwiched between the tile segments and the tile segments so as to maintain a constant gap, So that the height adjustment opening is formed by omitting the tile segments; (b) arranging a height forming member having a predetermined thickness in the injection opening and the height adjusting opening in the step (a), and placing the grouting injection tube and the height adjusting member on the upper portion of the height forming member of the injection opening portion and the height adjusting opening, Inverting; (d) forming a concrete plate by placing concrete on top of the tile segment to form a concrete plate; (e) removing the form and inverting the panel portion to the top to complete a precast concrete panel having a discontinuous front surface The present invention also provides a method of manufacturing a precast concrete panel having a discontinuous front end face.

A precast concrete panel having a discontinuous front end face and a method of manufacturing the same according to the present invention comprises a tile segment having a discontinuous front surface and being integrally formed with a precast concrete plate so that discontinuous front surfaces The height adjustment member is configured to facilitate the height adjustment during the construction of the unit large-sized panel, and the hoop rope for stress dispersion is integrally formed with the height adjustment member so as to be manufactured in a large size There is a very useful effect of facilitating stress dispersion even in a thin concrete plate.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a precast concrete panel having a discontinuous front section of the present invention and a perspective view of a coupled state. FIG.
2 is a plan view of a precast concrete panel having a discontinuous front section of the present invention.
3 is a cross-sectional view of a precast concrete panel having a discontinuous front section of the present invention.
4 is a perspective view of a height adjusting member used in the present invention.
FIG. 5 is a view showing a method of manufacturing a precast concrete panel having a discontinuous front end face according to the present invention in order.
6 is an exploded perspective view showing an embodiment of a conventional abrasion-resistant bar-cut member.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

Hereinafter, the technical structure of the present invention will be described in detail with reference to the preferred embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a precast concrete panel having a discontinuous front section of the present invention and a perspective view of a coupled state. FIG.

As shown in FIGS. 1A and 1B, the precast concrete panel 1 having a discontinuous front section of the present invention is formed of a plurality of tile segments 11, and has one or both of the panel sections 10 And a concrete plate 20 formed of precast concrete at the lower part of the panel part 10. [

The precast concrete panel 1 having the discontinuous front end face of the present invention is formed on the floor to be constructed at the time of construction by embedding the grouting injection pipe 30 and the height adjusting member 40 in the concrete plate 20 And then the grout material is injected into the grouting injection pipe 30 after the height is adjusted by the height adjusting member 40. [

2 is a plan view of a precast concrete panel of the present invention.

2, the panel unit 10 includes a plurality of tile segments 11 arranged in the horizontal direction (shown in the horizontal direction) and in the column direction (shown in the vertical direction) And is formed to have a constant area.

As shown in FIG. 2, the tile segments 11 and the tile segments 11 are spaced at regular intervals, preferably at intervals of 8 mm. 2A and 2B, the tile segment 11 in the forward direction and the tile segment 11 in the column direction are formed so that the forward end face has a discontinuous front end face as shown in FIGS. 2A and 2B. The tile segments 11 in the traveling direction and the tile segments 11 in the column direction may be arranged so that their front surfaces are staggered so as to have discontinuous front surfaces at both ends as shown in Fig. 2C.

One or more tile segments 11 are omitted in the central portion of the panel portion 10 to form the injection opening 12. The injection opening 12 is configured to expose an upper portion of the grouting injection tube 30 described later.

In addition, one or more tile segments 11 are omitted in a radial shape symmetrical about the injection opening 12 of the panel portion 10, thereby forming a height adjusting opening 13. The height adjusting opening 13 is configured to expose an upper portion of the height adjusting member 40 described later.

Since the height adjusting opening 13 is located at the upper portion where the height adjusting member 40 is formed, the height adjusting opening 40 is formed in correspondence with the position where the height adjusting member 40 is formed. Preferably, A plurality of, preferably four, grooves 13 are formed symmetrically around the injection opening 12 so as not to be offset to one side when the height of the precast concrete panel 1 having a discontinuous front surface is adjusted.

As described above, the panel portion 10 composed of the combination of the plurality of tile segments 11 has the discontinuous front surface at the end thereof, and the precast concrete panel 1 having the unitary discontinuous front surface and the free When the cast concrete panel 1 is disposed continuously, discontinuous front cross sections between the panel 1 and the panel 1 are intertwined with each other, so that the in-plane shearing force can be enhanced.

The tile segment 11 may be made of various materials, and may be made of a material such as granite, ceramics, or the like, as well as a bar mat material, which is mainly used in an automobile test road.

2A, the tile segments 11 may be formed by arranging four tiles 11a in a rectangular shape, and the tile segments 11 may have a single tile shape as shown in FIG. 2B .

The panel unit 10 having such a structure is disposed such that the tile segments 11 in the proceeding direction and the tile segments 11 in the column direction are staggered in cross section so that one side end or both side ends of the proceeding direction have a discontinuous front cross- As shown in FIG. 2A, one front end face of the tile segment 11 in the column direction may be staggered with respect to one tile segment 11 in the traveling direction. In particular, as shown in FIG. 2B, The two front end faces of the tile segment 11 in the column direction may be staggered with respect to one tile segment 11 in the direction of the arrow.

FIG. 3 is a sectional view of a precast concrete panel having a discontinuous front section of the present invention. FIG. 3 (a) is a sectional view of a portion in which a grouting injection pipe 30 is embedded, Fig.

As shown in FIG. 3, a concrete plate 20, which is formed in the same plane as the panel portion 10 by concrete having a predetermined thickness, is formed under the panel portion 10.

The panel portion 10 is coupled to the upper portion of the concrete plate 20 and the upper surface of the concrete plate 20 on which the injection opening portion 12 and the height adjustment opening portion 13 of the panel portion 10 are formed Grooves are formed at predetermined depths to form the injection grooves 21 and the height adjusting grooves 22, respectively.

The grouting injection tube 30 is embedded in the injection groove 21 as shown in FIG. 3A.

The grouting injection pipe 30 is formed in a cylindrical shape having a through hole formed at a central portion thereof so as to vertically penetrate the central portion of the injection groove 21 of the concrete plate 20 so that the upper end portion and the lower end portion thereof are respectively exposed.

In addition, as shown in FIG. 3B, height adjustment members 40 are embedded in the height adjustment grooves 22, respectively.

4 is a perspective view of a height adjusting member used in the present invention.

4, the height adjusting member 40 includes a bearing plate 41, a sleeve 42 vertically formed on the bearing plate 41, A fixed FOUP 45 coupled to connect the air discharge pipe 44 and the sleeve 42 and a height adjustment bolt 46 bolted to the sleeve 42.

The bearing plate 41 may be formed in various shapes such as a plate shape having a through hole at a central portion thereof, and may be formed as a disk to be embedded in the lower portion of the concrete plate 20 to serve as a bearing.

A sleeve 42 is coupled vertically to the center of the bearing plate 41.

The sleeve 42 has a cylindrical shape and vertically penetrates through the central portion thereof to allow the coupling hole 421 to pass therethrough, and a nut groove is formed in the inner peripheral surface of the coupling hole 421. The sleeve 42 is coupled to the upper surface of the bearing plate 41 by various methods known for welding or the like so that the through hole of the bearing plate 41 and the engagement hole 421 are aligned with each other.

The air discharge pipe 44 has a cylindrical shape with an empty interior and is vertically spaced apart from the sleeve 42 by a certain distance.

The air discharge pipe 44 is formed by placing the precast concrete panel 1 having the discontinuous front end face of the present invention on the ground surface and injecting the grout material through the grouting injection pipe 30, The space between the lower surface of the concrete panel 1 and the ground to be constructed is filled with the grout material so that the air is discharged through the air discharge pipe 44.

The air discharge pipe 44 may be adapted to engage a fixed hoop root 45 which is coupled to connect the air discharge pipe 44 and the sleeve 42 for fixation. The fixed hoop rope 45 is connected to the sleeve 42 and fixed to the air discharge pipe 44 so as to be installed at an accurate position while being embedded in the concrete plate 20 to disperse the stress.

The height adjustment member 40 is embedded in the portion where the height adjustment groove 22 of the concrete plate 20 is formed so that the sleeve 42 and the air discharge pipe 44 are positioned vertically. The upper end and the lower end of the concrete plate 20 are embedded in the exposed state in the concrete plate 20 so that the upper and lower portions of the concrete plate 20 are communicated with each other.

The height adjustment bolt 46 is bolted to the sleeve 42 so that the height of the precast concrete panel 1 having the discontinuous front end face is adjusted to the height adjustment member 40 radially arranged at the center of the panel portion 10. [ So that the height can be adjusted by the height-adjusting bolt 46 of the housing.

At this time, since the height adjusting bolt 46 is formed in a pointed shape at the lower end, friction with the ground to be applied can be minimized. That is, the area of the lower end of the height adjusting bolt 46 is narrowed so that the frictional force with the ground surface is reduced, so that even if the load of the precast concrete panel 1 having the discontinuous front end face is pressed, The adjustment bolt 46 can be easily rotated to facilitate adjustment of the height.

The height adjustment member 40 may be formed so as to form a plurality of stress distribution FOUPs 43 spirally arranged around the sleeve 42 so as to be embedded in the concrete plate 20 to distribute the stress. do.

The FOUP 43 for stress distribution has one end joined to one side of the sleeve 42 and bent at a point spaced horizontally by a downward slope so as to be engaged with the upper surface of the bearing plate 41, A plurality of which are spirally arranged.

The FOUP 43 for stress distribution is additionally provided in the height adjusting member 40 so that the stress is dispersed even in the thin concrete plate 20 manufactured in a large size so that the height adjusting bolt The height of the large-sized concrete plate 20 can be stably adjusted by using the reinforcing plate 46.

Since the injection grooves 21 and the height adjusting grooves 22 are open at the top, the precast concrete panel 1 having a discontinuous front end face is disposed on the ground surface to be installed, and the grout material is inserted into the grouting injection pipe The injection grooves 21 and the height adjustment grooves 22 are covered with separate tile segments 11 to complete the construction. The size of the plane may be the same as the size of the tile segment 11 or the inner side surface of the injection groove 21 of the concrete plate 20 and the height adjustment groove 22 may protrude inwardly, The tiles 23 can be formed so that the tile segments 11 can be mounted at the correct height to be coupled.

FIG. 5 is a view showing a method of manufacturing a precast concrete panel having a discontinuous front end face according to the present invention in order.

First, as shown in FIG. 5A, a plurality of tile segments 11 are disposed inside the mold 2 to form the panel unit 10 (FIG. 3A).

A plurality of tile segments 11 in the direction of the horizontal direction and a column direction in the direction perpendicular to the direction of travel are formed in the formwork 2 having a predetermined size and the tile segments 11 in the advancing direction and the tile segments 11 in the column direction, (11) are arranged so that their front end faces are staggered. At this time, a panel forming part (10) is arranged between the tile segment (11) and the tile segment (11) by interposing a joint forming member (19) so as to maintain a predetermined distance, preferably 8 mm.

The tile segments 11 are omitted from the central portion of the panel portion 10 so that the height adjustment opening portions 13 are formed in the injection opening portion 12 and the injection opening portion 12 in a radial symmetrical manner.

When the tile segments 11 are arranged, the upper surface of the tile segment 11 is turned upside down so as to face the lower surface of the mold 2. [

Thereafter, as shown in FIG. 5B, the grouting injection pipe 30 and the height adjusting member 40 are arranged (b).

At this time, the grouting injection pipe 30 and the height adjusting member 40 are disposed in the injection opening 12 and the height adjusting opening 13 in the step (a), respectively, and the upper portion is turned upside down .

At this time, the height forming member 4 having a predetermined thickness is inserted into the injection opening 12 and the height adjusting opening (not shown) so that the grouting injection tube 30 and the height adjusting member 40 are spaced apart from the lower surface of the mold, And the grouting injection tube 30 and the height adjusting member 40 are vertically disposed on the upper portion of the height forming member 4 of the injection opening 12 and the height adjusting opening 13, respectively.

The height forming member 4 may be formed of various materials such as styrofoam and wood, and is removed at the same time when the formwork 2 to be described later is removed.

The grouting injection tube 30 is arranged in a vertical direction so as to be located at the center of the injection opening 12 and the height adjusting member 40 is provided at a central portion of the height adjusting opening 13 with the sleeve 42 and the air discharge pipe 44 And the upper end is directed downward.

At this time, the upper end and the lower end of the sleeve (42) and the air discharge pipe (44) of the grouting injection pipe (30) and the height regulating member (40) are respectively provided with separate caps to prevent concrete from being inserted when the concrete is poured.

Thereafter, as shown in FIG. 5C, the reinforcing bars 3 are assembled on the tile segment 11 (c).

The reinforcing bars 3 are disposed inside the concrete plate 20 to be described later, and the positions and number of the reinforcing bars 3 can be variously formed.

Thereafter, as shown in FIG. 5D, the concrete is placed on the tile segment 11 and cured to form the concrete plate 20 (d).

Finally, the mold 2 is removed and a precast concrete panel 1 having a discontinuous front section is completed (e).

After the form 2 is removed, the panel part 10 is turned upside down to complete the precast concrete panel 1 having a discontinuous front surface, and the grouting injection tube 30 and the sleeve of the height adjusting member 40 If the upper end and the lower end of the air discharge pipe 42 and the air discharge pipe 44 are formed separately, respectively, the stopper is removed.

The height forming member 4 is also removed at the time of removing the form 2 so that the injection groove 21 and the height adjusting groove 22 are formed on the concrete plate 20, The upper end of the grouting injection pipe 30 and the upper end of the height adjusting member 40 are exposed at the upper portion of the height adjusting groove 22 and the height adjusting bolt 46 To the sleeve (42) of the play regulating member (40).

Thereafter, at the time of construction of the precast concrete panel 1 having the discontinuous front end face of the present invention, a plurality of precast concrete panels 1 having a discontinuous front end face are disposed on the top of the ground to be constructed so as to be engaged with the discontinuous front end faces The height adjustment bolt 46 of the height adjusting member 40 is rotated to adjust the height of the precast concrete panel 1 having the discontinuous front surface to maintain the flat surface, So that the gap between the ground and the lower surface of the precast concrete panel 1 having the discontinuous front surface is filled with the grout material.

Finally, another tile segment 11 is covered on the upper part of the injection groove 21 and the height adjustment groove 22 to complete the construction.

The precast concrete panel having a discontinuous front section and the method of manufacturing the same according to the present invention as described above can be manufactured by forming the tile segment to have a discontinuous front section and being integrally formed with the precast concrete plate, It is possible to increase the in-plane shear force by making cross sections mutually interlocked and to adjust the height of the large panel made by unit by constructing the height adjustment member. There is a very useful effect of facilitating stress dispersion even in a thin concrete plate fabricated from a steel sheet.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

1: Precast concrete panel with discontinuous front section
2: Form
3: Rebar
4: height forming member
10:
11: Tile segment
12: injection opening
13: height adjustment opening
20: Concrete plate
30: Grouting inlet tube
40: height adjustment member
41: bearing plate
42: Sleeve
43: Hoop for stress dispersion
44: air discharge pipe
45: Fixed hoop muscle
46: height adjustment bolt

Claims (5)

A plurality of tile segments 11 are arranged in a column direction perpendicular to the horizontal direction of travel and the direction of travel, and the tile segments 11 in the traveling direction and the tile segments 11 in the column direction are arranged so that their front surfaces are staggered And is formed to have a constant area,
An injection opening 12 in which a tile segment 11 is omitted and formed at a central portion in a predetermined size and a height adjusting opening 13 in which a plurality of radially symmetrically formed tile segments 11 are omitted in the injection opening 12 A panel unit (10) constituted by the panel unit (10);
The panel portion 10 is formed in the same plane as the panel portion 10 with concrete of a certain thickness at the lower portion of the panel portion 10 and the portion where the injection opening portion 12 and the height adjusting opening portion 13 are formed A concrete plate 20 on which an injection groove 21 and a height adjusting groove 22 are formed;
A grouting injection pipe 30 which is formed in a cylindrical shape having a through hole at a central portion thereof so as to pass through a central portion of the injection groove 21 of the concrete plate 20 so as to be exposed so as to have an upper end and a lower end;
And a nut groove is formed in the inner circumferential surface of the engaging hole 421 so that the through hole of the bearing plate 41 and the engaging hole 421 of the engaging hole 421 are formed in the center of the bearing plate 41, 421 are coupled to the upper surface of the bearing plate 41 such that one end of the sleeve 42 is engaged with one side of the sleeve 42 and is bent at a point spaced horizontally by a certain distance, (43) having a plurality of helical spiral axes axially so as to be coupled to the upper surface of the sleeve (41), and a plurality of circumferentially spaced cylinders A fixed FOUP muscle 45 coupled to connect the air discharge pipe 44 and the sleeve 42 and a fixed FOUP muscle 45 coupled to the sleeve 42 such that the lower end protrudes to the bottom of the sleeve 42, The height adjustment bolts 46 And a height adjusting member 40 embedded in the lower portion of the height adjusting groove 22 of the concrete plate 20 such that the upper end and the lower end of the sleeve 42 and the air discharge pipe 44 are respectively exposed. The precast concrete panel having a discontinuous front section. The method according to claim 1,
Characterized in that two front sections of the tile segments (11) in the column direction are staggered and arranged with respect to one tile segment (11) in the proceeding direction. The method according to claim 1,
Characterized in that the injection groove (21) and the height adjustment groove (22) are formed with a mounting step (23) protruding inward from the inner side surface. The method according to claim 1,
Wherein the height adjusting bolt (46) of the height adjusting member (40) is formed in a shape having a lower end. A method of manufacturing a precast panel according to any one of claims 1 to 4,
(a) a plurality of tile segments 11 are arranged in a horizontal direction and in a column direction perpendicular to the direction of travel, with a tile segment 11 having a predetermined size, The segment 11 and the tile segment 11 in the column direction are arranged so that their front end faces are staggered and the joint formation member 19 is sandwiched between the tile segment 11 and the tile segment 11 So that the panel unit 10 is disposed,
The height adjustment opening 13 in which a plurality of radially symmetrically formed injection openings 12 and injection openings 12 are formed in the central portion of the panel portion 10 is configured so that the tile segments 11 are omitted;
(b) A height forming member 4 having a predetermined thickness is disposed in the injection opening 12 and the height adjusting opening 13 in the step (a), and the height forming member 4 is formed in the height adjusting opening 13 Placing the grouting injection pipe (30) and the height adjusting member (40) upside down on the upper part of the member (4);
(c) assembling the rebar (3) on top of the tile segment (11);
(d) forming a concrete plate (20) by placing concrete on top of the tile segment (11)
(e) removing the formwork (2) and turning the panel part (10) upwards to complete the precast concrete panel (1) having a discontinuous front surface. Method of manufacturing precast concrete panel.

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