KR20180134445A - Stackable Concrete Block and Formwork for the Same - Google Patents

Abstract

The present invention relates to a prefabricated concrete block including a front surface portion provided with a drain pattern groove having engraved curved grooves connected to an edge at one or more ends; a left side portion provided with a side protruding coupling portion protruding by a predetermined side coupling thickness; a right side portion recessed by the predetermined side coupling thickness and provided with a side recessed coupling portion that can be coupled to the side protruding coupling portion; an upper surface portion provided with an upper surface protruding coupling portion protruding by a predetermined upper side coupling thickness; a bottom surface portion recessed by the predetermined upper side coupling thickness and provided with a bottom surface recessed coupling portion that can be coupled to the upper surface protruding coupling portion; a drain pipe formed in a penetrating manner from one side to the rear surface portion of the front surface portion and capable of guiding the drain from the rear surface portion toward the front surface portion; and at least one reinforcing rod insertion port formed in a penetrating manner between the upper surface protruding coupling portion and the bottom surface recessed coupling portion.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a prefabricated concrete block,

The present invention relates to a prefabricated concrete block and a mold for manufacturing the same, and more particularly, it relates to a prefabricated concrete block and a prefabricated prefabricated concrete block which can easily stack concrete blocks in an upright or stepped form, The present invention relates to a prefabricated concrete block and a mold for manufacturing the prefabricated concrete block.

Generally, the retaining wall is constructed on the boundary of the terrain such as the sex land or the cut-out point and is constructed to prevent the deviations and collapse of the sex land or the cut-out due to the loss of the soil.

Conventionally, such a retaining wall has been constructed so as to be constructed as a rigid structure by mixing and curing a predetermined type of stone and cement on an inclined surface such as a gravel land or a cutout.

The retaining wall constructed in this manner takes a long time to cure the cement, and there is a concern that the stone may be deviated or collapsed before the curing is completed.

In addition, it is necessary to prepare stone as a natural stone for the construction of a retaining wall or an axle. As the stone resources are depleted, the cost of the stone material increases, and in preparing the stone, And the labor cost is increased due to cement curing which extends the construction period.

In addition, the conventional retaining wall can not adequately discharge the moisture absorbed in the topsoil such as the gravel land or the cutter, or when the weather is cold as in the winter season, when the water freezes and the volume is expanded, cracks are generated in the retaining wall There was even a problem that the retaining wall collapsed.

In order to overcome this problem, a method of constructing a plurality of concrete blocks on a terrain such as a gully land or a cutout is widely used.

An example of such a prefabricated concrete block for constructing a retaining wall is disclosed in " Block for Prefabricated Concrete Retaining Wall " in Korean Utility Model Registration No. 20-0205752 (published on Dec. 12, 2000). In the present registration model, a reinforcing bar 81 is formed at a predetermined position of the lower block 80 when the lower block layers 30, 40 and 50 are stacked, and a reinforcing bar is inserted into the reinforcing bar 81, Respectively. Therefore, there is a problem that the positions of the blocks are not fixed between the lower layers until the blocks are fixed by inserting the reinforcing bars into the reinforcing bars 81. Since the size of the reinforcing bars 81 is small, It is difficult to perform the position adjustment operation easily.

In addition, although the adjacent lower blocks 80 are connected and fixed by the connecting block 70 in the left-right direction, it is necessary to prepare and use two materials of different shapes, the lower block 80 and the connecting block 70 There is a problem in that the retaining walls can be constructed only in a straight line in the left and right direction.

Further, since the drainage hole 84 is formed on the rear surface of the lower block 80, the drainage water is formed in the lower side of the block, so that there is a problem that drainage is difficult to be smoothly performed when the drainage amount is large.

Another example of a prefabricated concrete block for constructing a retaining wall is "a vegetation building block and a retaining wall using the same" in Japanese Patent Registration No. 10-1314556 (issued October 10, 2013).

The above-mentioned patent discloses that horizontal assembling can be performed without the intervention of a separate connecting block or the like by forming the assembling recesses 106 and 206 and the assembling protrusions 208 and 308 in the block. However, it is necessary to insert at least one support 420 between the drain grooves 410 of the vegetation building block to fix the vegetation block 100, 200, 300 adjacent to each other in the vertical direction in the vertical upright direction stacking to be.

Therefore, it is difficult to construct a strong retaining wall enough to secure a sufficient supporting force against the earth pressure only by laminating the vegetation building block, so that there is a problem that a separate rear foundation 70 should be provided as shown in FIG.

Also, in the horizontal direction, it is difficult to form a retaining wall corresponding to the shape of the gross land or the cut-out paper since the block can be assembled only in a straight line as in the case of the new registrant's new design.

Registration Utility Model No. 20-0205752 (Announcement of Dec. 1, 2000) " Block for Prefabricated Concrete Retaining Wall " Registered Patent No. 10-1314556 (Published Oct. 20, 2013) " Vegetation block and its retaining wall using the same "

It is an object of the present invention to provide a prefabricated concrete block which can be assembled so that its position can be fixed not only in a horizontal direction but also in a vertical direction without a separate connection material.

It is another object of the present invention to provide a prefabricated concrete block which can be easily stacked and assembled without precisely adjusting the positions of upper and lower blocks.

It is still another object of the present invention to provide a prefabricated concrete block capable of forming a retaining wall in a shape corresponding to the shape of a gravel land or cutout that deviates from a straight line shape.

It is still another object of the present invention to provide a mold for manufacturing the prefabricated concrete block according to the present invention.

In order to achieve the above object, a prefabricated concrete block according to the present invention includes: a front portion having a drain pattern groove formed at an end portion of a plurality of curved grooves connected to a rim; A left side surface portion having a side projecting engagement portion protruding by a predetermined side engagement thickness; A right side surface portion having a side surface depressed engagement portion formed by being recessed by the predetermined side engagement thickness and being engageable with the side surface projecting engagement portion; A top surface portion having an upper surface protruding engaging portion protruding by a predetermined upper bonding thickness; A bottom surface portion having a bottom surface depression engaging portion formed by being recessed by the predetermined upper surface coupling thickness and engaging with the top surface projecting engaging portion; A drain pipe formed to penetrate from the one side of the front portion toward the back side to guide drainage from the back side toward the front side; And at least one reinforcing bar insertion hole vertically penetrating between the upper surface protruding engaging portion and the bottom surface depressed engagement portion.

At this time, the upper surface protruding engaging portion is formed in a shape of a truncated cone, and the reinforcing rod is also formed in two, and the bottom recessed engaging portion has a shape corresponding to the central vertical cross- And may be positioned below the upper surface projecting engagement portion.

Further, the upper surface protruding engaging portion is formed at a position close to the back surface portion, and the bottom surface portion further includes an additional bottom surface depression engaging portion formed adjacent to the bottom surface depression engaging portion at a position adjacent to the front surface portion, And at least one additional reinforcing rod insertion hole vertically passing between the upper surface portion and the upper surface portion.

According to another aspect of the present invention, a mold for manufacturing the prefabricated concrete block includes: a floor surface frame having a relief pattern corresponding to the drain pattern grooves; A left side frame coupled to the upper side of the bottom sole so as to be erected upwardly and having a side recessed shape corresponding to the side projected engaging portion; A right side frame coupled to the upper side of the bottom frame to be upwardly raised and having a side projecting shape corresponding to the side side recess engaging portion; A top face frame having an upper surface depression shape corresponding to the upper surface projecting engaging portion; A bottom mold having a bottom projecting shape corresponding to the bottom engaging portion; A top surface reinforcing rod fixing protrusion and a bottom surface reinforcing rod fixing protrusion protruding from each other from the top surface depression shape and the bottom surface protrusion shape; And a drain pipe fixing protrusion protruding upward from one side of the bottom surface frame, wherein at least one of the one or more reinforcing bar inserting holes is connected to the upper surface reinforcing bar fixing protrusion and the bottom surface reinforcing bar fixing protrusion, Is connected to the water pipe fixing protrusion and the upper end thereof is connected to the water pipe upper fixing protrusion protruded downward from the position fixing member supported by the upper face frame and the upper end of the bottom face frame.

According to the above-described prefabricated concrete block of the present invention, since the block position can be fixed only by the block itself not only in the horizontal direction but also in the vertical direction, no separate inter-block connection material is required, There is an excellent effect that the work efficiency can be improved and the inter-block coupling can be made more robust.

In addition, since the position of the block is fixed only by the block itself and the inter-block coupling can be made strong, there is an advantage that it is not necessary to precisely adjust the position between the upper and lower blocks for assembling the reinforcing material such as the reinforcing bar .

In addition, it is possible to construct a retaining wall linearly in the horizontal direction in the same manner as in the related art, but it is possible to construct a retaining wall having a shape close to the shape of a cut-out land or cut- There is an advantage in that the amount of soil needed to fill the gaps between the wall and the retaining wall can be minimized.

Fig. 1 is a perspective view of a first embodiment of a prefabricated concrete block according to the present invention, wherein (A) is a perspective view seen from the left side and (B) is a perspective view seen from the right side.
Fig. 2 is a side view of the first embodiment and its modification of Fig. 1, wherein (A) shows the first embodiment, Fig. 2 (B) shows the first modification, and Fig. 2 (C) shows the second modification.
(A) is a front view, (B) is a side view of a vertically stacked state, and (C) is a cross-sectional view of a stepped stacked state Fig.
Fig. 4 is a perspective view of a second embodiment of the prefabricated concrete block according to the present invention, wherein (A) is a perspective view seen from the left side, (B) is a perspective view seen from the right side, (D) is a perspective view of the modified example as viewed from the lower side.
FIG. 5 is a view showing a laminated state of the assembled concrete block according to the second embodiment of FIG. 4, wherein (A) is a front view, (B) is a plan view, and FIG. 5 (C) is a perspective view.
FIG. 6 is a perspective view illustrating an assembled perspective view of a mold for manufacturing a prefabricated concrete block according to the present invention in various directions.
7 is an exploded perspective view of a mold for manufacturing a prefabricated concrete block according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a prefabricated concrete block according to the present invention and a mold for manufacturing the same will be described in detail with reference to the accompanying drawings.

In the following description, like reference numerals have been used for like and similar components of different embodiments, and they will not be referred to as such.

Fig. 1 is a perspective view of a first embodiment of a prefabricated concrete block according to the present invention, wherein (A) is a perspective view seen from the left side and (B) is a perspective view seen from the right side.

The first embodiment 100 of the prefabricated concrete block according to the present invention includes a front part 110, a left side part 120, a right side part 130, a top part 140, a bottom part 150 and a back part 160, Like shape.

The front face portion 110 is provided with a drain pattern groove 113 formed at an obtuse angle. The drain pattern groove 113 is formed of a plurality of curved grooves, and each of the plurality of curved grooves may be formed so that only one end or both ends are connected to the rim. The drain pattern grooves 113 help to smooth drainage of the rainwater flowing along the front face of the block and at the same time to improve the beauty of the retaining wall formed by the aesthetics and blocks of the block.

The left side face portion 120 is provided with a side face projecting engaging portion 123 protruded by a predetermined side engagement thickness D1. The side projecting engaging part 123 is coupled with a laterally projecting engaging part 133. In the illustrated embodiment, the side projecting engaging part 123 is formed in the shape of a rectangle-based quadrangular pyramid that is elongated to the left and right. However, the present invention is not limited thereto, , A truncated cone shape, a pyramid shape such as a triangular pyramid, a quadrangular pyramid, or the like.

The right side surface portion 130 is provided with a side recessed engagement portion 133 formed to be recessed by the predetermined side engagement thickness D1 to be engaged with the side projected engagement portion 123. [ The lateral side recessed engagement portion 133 should be formed to correspond to the side projected engagement portion 123 so as to be coupled to the side projected engagement portion 123. Accordingly, The portion 133 is formed in a shape of a rectangle-based quadrangular pyramid that is elongated to the left and right. However, the side projecting engaging portion 123 is in the shape of a protruded quadrangular pyramid, whereas the side recess engaging portion 133 is in the shape of a recessed quadrangular pyramid.

The left side face 120 of the right side block and the right side side face 130 of the block located on the left side of the two blocks 100 adjacent to each other in the horizontal direction can be coupled, And the side recessed engagement portion 133, as shown in Fig.

The upper surface portion 140 has an upper surface protruding engagement portion 143 protruding by a predetermined upper engagement thickness D2. In the illustrated embodiment, the upper surface protruding engaging portion 143 is formed in the shape of a square-shaped quadrangular pyramid that is formed to be long along the longitudinal direction of the block.

The bottom surface portion 150 has a bottom surface recessed engaging portion 153 recessed by the predetermined upper bonding thickness D2 so as to be engaged with the top surface protruding engaging portion 143. [ The bottom concave fitting portion 153 is formed in a shape corresponding to the upper surface protruding engaging portion 143. Instead of being formed in the shape of a rectangle-based quadrangular pyramid that is long along the longitudinal direction of the block, And is recessed in a channel shape of a trapezoidal cross section formed through the left side surface portion 120 to the right side surface portion 130. As shown in FIG. 3 (A), the upper and lower blocks 100 may be stacked in a staggered arrangement such that the blocks 100 overlap each other only half.

As a result, the upper surface portion 140 of the block positioned on the lower side of the two adjacent blocks 100 in the up-down direction and the bottom surface portion 150 of the upper-positioned block can be coupled, And the bottom recess engaging portion 153 are fixed to each other.

The prefabricated concrete block 100 according to the present invention may be provided with a drain pipe 170 penetrating from one side of the front part 110 to the rear part 160. The drain pipe 170 may be formed by placing a pipe made of plastic or metal, such as PVC, at a predetermined position in the mold as described later, and buried in the concrete forming the block 100. The drain pipe 170 is configured such that when the block 100 is constructed as a retaining wall, moisture absorbed in the gravel located on the back surface portion 160 flows into the back surface portion 160 side of the drain pipe 170 and flows toward the front surface portion 110 And performs the operation of guiding the drainage to be drained.

In addition, one or more reinforcing bar inserting holes 180 may vertically penetrate between the upper surface protruding engaging portion 143 and the bottom surface depressed engagement portion 153. The prefabricated concrete block 100 according to the present invention can provide a strong coupling even by the block alone, unlike the conventional prefabricated concrete block. However, considering the earth pressure of the gravel land or the cutter supported by the retaining wall, By inserting reinforcing rods (not shown), the coupling between the blocks can be further strengthened.

The reinforcing bar inserting port 180 may be formed by placing a pipe made of plastic such as PVC or a metal pipe at a predetermined position in the mold as described later and buried in the concrete forming the block 100.

The reinforcing bar inserting holes 180 are formed at positions where the reinforcing bar inserting holes 180 can be mutually aligned between the upper and lower blocks 100 for stacking the retaining walls. The number of the reinforcing bar inserting holes 180 is two in the illustrated embodiment , But is not limited thereto. When two or more reinforcing bar inserting openings 180 are provided, the reinforcing bar inserting can be performed not only when the blocks 100 are stacked in half by half as shown in the figure, but also when they are stacked by, for example, Therefore, there is an advantage that the lamination pattern of the block 100 can be further diversified.

Fig. 2 is a side view of the first embodiment and its modification of Fig. 1, wherein (A) shows the first embodiment, Fig. 2 (B) shows the first modification, and Fig. 2 (C) shows the second modification.

The upper surface protruding engaging portion 143 formed on the upper surface portion 140 and the lower surface depressed engagement portion 153 formed on the bottom surface portion 150 of the assembled concrete block 100 according to the embodiment shown in FIG. 110 and the rear portion 160 (see Fig. 2 (A)).

Alternatively, the upper surface protruding engagement portion 143 and the bottom surface depressed engagement portion 153 may be formed at a position biased toward the front portion 110 or toward the rear portion 160. 2B shows a modified example in which the upper surface protruding engaging portion 143 and the bottom surface depressed engagement portion 153 are biased toward the rear surface portion 160. As shown in FIG.

The top surface protruding engaging portion 143 and the bottom surface depressed engagement portion 153 are formed to be offset toward the back surface portion 160 while the bottom surface depressed engagement portion 153 is formed on the front surface portion 110 in the bottom surface portion 150. [ (Refer to Fig. 2 (C)). This variant enables cascading of the blocks as described below.

When the additional bottom concave fitting portion 155 is provided, the additional bottom concave fitting portion 155 is vertically passed through the upper face portion 140 and the portion where the upper face protruding fitting portion 143 is not formed And may further include one or more additional reinforcement rod insertion ports 183. The additional reinforcing bar inserting hole 183 is for enabling structural strength reinforcement by a reinforcing rod (not shown) in the stepwise lamination of the block.

(A) is a front view, (B) is a side view of a vertically stacked state, and (C) is a cross-sectional view of a stepped stacked state Fig.

In the case of the embodiment of Fig. 2 (A) or the modification of Fig. 2 (B), it is possible to construct a retaining wall by vertical stacking as shown in Fig. 3 (B). However, in the case of the modified example of Fig. 2 (C), there is an advantage that not only the vertical stacking of Fig. 3 (B) but also the building of the retaining wall by the stepped stacking shown in Fig. That is, in the case of the prefabricated concrete block 100 according to the modification of FIG. 2C, there is an advantage that the vertically stacked retaining wall or the stepped laminated retaining wall can be arbitrarily constructed as required or optionally.

As shown in FIG. 3C, the stepped laminated retaining wall is constructed by selecting one of the two blocks on the lower side corresponding to one block on the upper side and the one block on the lower side corresponding to one block, However, in the case where the castle land or the cutout itself is made of an inclined plane, it is preferable to apply the latter method.

A method in which one block is disposed on the upper side with respect to two blocks on the lower side is advantageous in that the lower side of the retaining wall is constructed more robustly than the upper side and therefore the region where the stronger earth pressure is expected to be applied to the lower side of the retaining wall It is advantageous to apply it to. However, when a block is to be stacked, a considerable number of blocks 100 must be inserted in each layer on the lower side. Therefore, considering the economical efficiency, it is preferable that the stack height is limited to 4-5 layers .

Fig. 4 is a perspective view of a second embodiment of the prefabricated concrete block according to the present invention, wherein (A) is a perspective view seen from the left side, (B) is a perspective view seen from the right side, (D) is a perspective view of the modified example as viewed from the lower side.

The assembled concrete block 200 according to the second embodiment of the present invention is different from the first embodiment in that the upper surface protruding engaging portion 243 is formed in a truncated conical shape, And is formed at the center of the truncated cone-shaped upper surface projecting engaging portion 243.

The bottom recess engaging portion 253 is recessed in a channel shape having a trapezoidal cross section formed through the left side surface portion 220 to the right side surface portion 230 along the longitudinal direction of the block 200 as in the first embodiment. In other words, the bottom recessed engaging portion 253 of the second embodiment may be formed so as to extend from the left side surface portion to the right side surface portion in a shape corresponding to the central vertical cross-section of the truncated cone. Also, the bottom surface depression engaging portion 253 is positioned below the top surface projecting engaging portion 243. [ This corresponds to the configuration of Fig. 2 (A) or Fig. 2 (B) of the first embodiment.

The upper surface protruding engaging portion 243 is formed at a position close to the back surface portion 260 and the bottom surface portion 250 is formed at a position corresponding to the front surface portion 210 (See FIGS. 4 (C) and 4 (D)) adjacent to the bottom surface depression engaging portion 253 at a position adjacent to the bottom depression engaging portion 253. The additional reinforcement rod insertion port 283 may further include at least one additional reinforcing rod insertion port 283 vertically penetrating between the additional bottom recessed engaging portion 255 and the upper surface portion 240, As described above, to reinforce the structural strength by the reinforcing rods (not shown) at the time of stacking the blocks in a stepped manner.

FIG. 5 is a view showing a laminated state of the assembled concrete block according to the second embodiment of FIG. 4, wherein (A) is a front view, (B) is a plan view, and FIG. 5 (C) is a perspective view.

As in the second embodiment shown in FIG. 4, when the upper surface protruding engaging portion 243 is formed into two truncated conical shapes, when the assembled concrete block 200 according to the present invention is disposed in the horizontal direction, But it can be arranged in a curved shape. Accordingly, even when the shape of the embankment or cutout is somewhat deviated from the straight line, it is possible to construct a retaining wall in accordance with the shape.

FIG. 6 is a perspective view of an assembly of a mold for manufacturing a prefabricated concrete block according to the present invention in various directions, and FIG. 7 is an exploded perspective view of a mold for manufacturing a prefabricated concrete block according to the present invention.

The mold 400 for manufacturing the prefabricated concrete block according to the present invention is formed of a frame member such as a floor frame 410, a left side frame 420, a right side frame 430, a top frame 440 and a bottom frame 450 .

The bottom frame 410 corresponds to the front portion 110 of the block 100 and includes a relief pattern 413 having a shape corresponding to the drain pattern groove 113, So that the drain pattern grooves 113 of the engraved pattern can be formed in the recess 110.

The left side frame 420 corresponds to the left side face 120 of the block 100 and is coupled to be raised upward from one side of the bottom face frame 410, And has a side depression shape 423.

The right side frame 430 corresponds to the right side portion 130 of the block 100 and is coupled to the other side of the bottom frame 410 so as to be upwardly directed, And has a side projecting shape 433.

The upper surface frame 440 corresponds to the upper surface portion 140 of the block 100 and has an upper surface recessed portion 443 corresponding to the upper surface protruding engagement portion 143.

The bottom surface frame 450 corresponds to the bottom surface portion 150 of the block 100 and has a bottom surface protruding shape 453 corresponding to the bottom surface depression fitting portion 153.

The left frame 420, the right side frame 430, the upper frame 440 and the bottom frame 450 are fixed to the floor frame 410 and fixed to the adjacent frame members, Allow the weight of the concrete to be supported. However, the frame member such as the left frame 420, the right side frame 430, the upper frame 440 and the bottom frame 450 may be constructed such that the completed block 100 is lifted from the mold 400 after concrete injection and curing It must be completely detachable from the floor panel 410 when it is removed. Each frame member is thus joined to the bottom frame 410 and to the frame members using a detachable fastening tool (not shown) such as pins, wedges, or the like.

In order to form the drain pipe 170, a pipe 470 made of plastic such as PVC or the like made of metal is disposed in a predetermined position in the formwork so as to be embedded in the concrete forming the block 100. The lower end of the pipe 470 is fixed to a drain pipe fixing protrusion 415 protruding upward from one side of the bottom face frame 410 and an upper end portion of the pipe 470 is supported by the upper face frame 440 and the upper end of the bottom face frame 450 And is connected to a drain pipe upper fixing protrusion 493 protruding downward from the position fixing member 490. [

Both ends of the pipe 480 for forming the reinforcing bar inserting hole 180 are provided with upper surface reinforcing rod fixing protrusions 445 protruding from the upper surface depression shape 443 and the lower surface protrusion shape 453 respectively, And fixed to the reinforcing rod fixing protrusions 455, respectively.

Hereinafter, a method of manufacturing the prefabricated concrete block 100 by the mold 400 according to the present invention will be described.

First, the left side frame 420 and the right side frame 430 are assembled to the floor frame 410 of the form 400.

Subsequently, the top frame 440 is assembled to the bottom frame 410, the left frame 420, and the right frame 430.

One end of the pipe 480 for the reinforcing bar insertion port 180 is inserted into the upper surface reinforcement fixing protrusion 445 provided in the upper surface depression 443 and the other end of the pipe 480 is fixed to the bottom surface protrusion 453 The bottom frame 450 is assembled to the bottom frame 410, the left frame 420 and the right side frame 430 while being minded to be inserted into the bottom reinforcement fixing protrusion 455 provided in the bottom frame 410.

The lower end of the pipe 470 for the drain pipe 170 is fixed to the drain pipe fixing protrusion 415 of the floor frame 410 and the upper end of the pipe 470 is fixed to the upper fixing protrusion of the position fixing member 490 The position fixing member 490 is fixed to be supported at the upper ends of the top frame 440 and the bottom frame 450.

The aggregate mixed concrete is poured to the mold 400 to a predetermined height, and two or more pulling rings (not shown) for lifting the block 100 after curing are placed in the concrete.

After the concrete curing is completed, the position fixing member 490 is removed first, the left side frame 420 and the right side frame 430 are removed, and then the top frame 410 and the bottom frame 420 are removed. Then, the block 100 is lifted by using a device such as a crane and moved to a storage position or loaded on a truck for transportation.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the disclosed embodiments, The present invention is not limited thereto.

100, 200: prefabricated concrete block 110, 210:
113, 213: drain pattern grooves 120, 220: left side surface
123, 223: side projecting engaging portion 130, 230: right side portion
133, 233: side recessed engaging portion 140, 240: upper surface portion
143, 243: upper surface protruding engaging portion 150, 250:
153, 253: bottom surface depression part 155, 255: additional bottom surface depression part
160, 260: a back surface portion 170, 270: a drain pipe
180, 280: reinforcement rod insertion port 183, 283: additional reinforcement rod insertion port
400: Form 410: Floor frame
413: Embossed pattern 415: Drain pipe fixing projection
420: left frame 423: side depression shape
430: right side frame 433: side projecting shape
440: upper surface frame 443: upper surface depression shape
445: upper surface reinforcing rod fixing protrusion 450: bottom surface frame
453: bottom projection shape 455: bottom side reinforcement rod fixing projection
470, 480: Pipe 490: Position fixing member
493: Upper fixing projection of the drain pipe
D1: Side bonding thickness D2: Upper bonding thickness

Claims (4)

A front portion having a drain pattern groove formed at an obtuse angle with a plurality of curved grooves at least one end of which is connected to a rim;
A left side surface portion having a side projecting engagement portion protruding by a predetermined side engagement thickness;
A right side surface portion having a side surface depressed engagement portion formed by being recessed by the predetermined side engagement thickness and being engageable with the side surface projecting engagement portion;
A top surface portion having an upper surface protruding engaging portion protruding by a predetermined upper bonding thickness;
A bottom surface portion having a bottom surface depression engaging portion formed by being recessed by the predetermined upper surface coupling thickness and engaging with the top surface projecting engaging portion;
A drain pipe formed to penetrate from the one side of the front portion toward the back side to guide drainage from the back side toward the front side; And
At least one reinforcing bar inserting hole vertically passing between the upper surface protruding engaging portion and the bottom surface depressing engagement portion;
And a reinforced concrete block. The method according to claim 1,
The upper surface protruding engaging portion is formed in a truncated conical shape,
Two reinforcing rod insertion portions are formed,
Wherein the bottom surface depression engaging portion is formed to extend from the left side surface portion to the right side surface portion in a shape corresponding to the central vertical cross-section of the truncated cone, and is positioned below the top surface projecting engaging portion. The method of claim 2,
The upper surface protruding engaging portion is formed at a position close to the back surface portion,
The bottom portion further includes an additional bottom recessed engagement portion formed adjacent to the bottom recessed engagement portion at a position adjacent to the front portion,
Further comprising at least one additional reinforcing rod insertion hole vertically penetrating between the additional bottom concavity and the upper surface portion. A mold for manufacturing the prefabricated concrete block of claim 1,
A bottom sole provided with a relief pattern having a shape corresponding to the drain pattern groove;
A left side frame coupled to the upper side of the bottom sole so as to be erected upwardly and having a side recessed shape corresponding to the side projected engaging portion;
A right side frame coupled to the upper side of the bottom frame to be upwardly raised and having a side projecting shape corresponding to the side side recess engaging portion;
A top face frame having an upper surface depression shape corresponding to the upper surface projecting engaging portion;
A bottom mold having a bottom projecting shape corresponding to the bottom engaging portion;
A top surface reinforcing rod fixing protrusion and a bottom surface reinforcing rod fixing protrusion protruding from each other from the top surface depression shape and the bottom surface protrusion shape; And
A water pipe fixing protrusion protruding upward from one side of the floor sole;
, ≪ / RTI >
Wherein at least one of the at least one reinforcing-bar insertion port is connected to the upper surface reinforcing rod fixing protrusion and the lower surface reinforcing bar fixing protrusion,
Wherein the drain pipe is connected to the drain pipe fixing protrusion and the upper end of the drain pipe is connected to the drain pipe upper fixing protrusion protruded downward from the position fixing member supported by the upper face frame and the upper end of the bottom face mold. Block formwork.

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