KR101559751B1 - This does not require a retaining wall erected formwork - Google Patents

Abstract

The present invention relates to a reinforced retaining wall that does not require a form, and has a shape in which a plurality of retaining rings are inserted into a rear surface of the reinforcing retaining wall. The reinforcing retaining wall has a shape that is erected at a predetermined angle from a front portion of a ground or a base concrete structure toward a rear portion, A plurality of front PC panels successively stacked in a plurality of stages in the upward and downward directions; A plurality of latching rings having a plurality of latching rings inserted in an insert shape and stacked in a plurality of stages in a leftward and rightward direction at a predetermined distance from the front PC panel on a surface of the ground or base concrete structure, A rear PC panel; A plurality of panel spacing adjusting and fixing means for mutually connecting the front and rear PC panels to each other to maintain a predetermined distance and for increasing a coupling force with concrete laid in a space formed between the front and rear PC panels; A plurality of H-shaped beams installed vertically in such a manner that the back surface is in close contact with the inner surface of the rear PC panel to prevent the rear PC panel from being pushed; And concrete that is poured into a space formed between the front and rear PC panels to integrate them.
Therefore, it is possible to form a retaining wall that is rigid and beautiful without any additional formwork to form a concrete pouring space, and also has a vertical vertical face and a front inclined face, and can shorten the construction period, thereby drastically reducing manpower and labor costs .

Description

{This does not require a retaining wall erected formwork}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prefabricated retaining wall that does not require a form, and more specifically, to a retaining wall that is used in forming a retaining wall on a slope of a river embankment, a coast road, It is possible to construct a strong and beautiful retaining wall within a short period of time without installing a separate form for the back panel, and also, by using the H-shaped beam installed to prevent the rear PC panel from being pushed among the components of the retaining wall, The present invention relates to a prefabricated retaining wall that does not require a mold to be constructed so that a slip-off method of the present invention can be applied.

Generally, the retaining wall has been constructed by on-site wet construction where reinforcing bars and formworks are installed and concrete is laid on the slopes of roads, park slopes, river banks, coast roads, residential areas, etc., Most of the retaining walls are reverse T-shaped retaining walls.

In this way, the retaining walls constructed by pouring the concrete in the field are subjected to processes such as excavation of the ground, foundation concrete pouring, rebar assembly, body concrete pouring, backfill construction.

In other words, in the case of the conventional retaining wall construction, it is necessary to perform the reinforcement work of the reinforcing bars by referring to the drawing line of the retaining wall in the field, and after the concrete is laid after setting the form, Day) curing period is required, and the mold is dismantled after completion of curing.

Accordingly, the conventional retaining wall construction requires several steps of construction and a long construction period, which is problematic in terms of economy and workability. In addition, due to the above-mentioned conventional construction method, due to long- There is a high likelihood of complaints and exposure to long-term risks, which is disadvantageous in terms of stability.

Accordingly, in recent years, the use of precast concrete retaining walls (hereinafter referred to as PC retaining walls) has been gradually increasing in consideration of constructability, economy, and possibility of civil complaints. And it is very effective in construction work because it is only assembled in the field, and it is very effective for complicated urban areas and urgent construction with low traffic volume because the possibility of complaints can be minimized accordingly.

However, the oldest precast wall retaining wall with the above concept is assembled and installed in the field by assembling and installing precast concrete block manufactured in the factory. It can be constructed by assembling the precast concrete retaining wall block wall in horizontal and vertical directions, Is installed between the wall portion and the base plate in an inclined manner.

However, since the pre-cast wall retaining wall as described above is provided with a large number of supports on the entire rear surface of the wall portion, the pre-cast wall retaining wall can not be superior in workability as compared with a general concrete retaining wall.

Therefore, various retaining wall structures or retaining wall construction methods have been proposed to solve these problems. However, when the construction conditions are complicated and the conditions of the construction site are poor, the construction period is long, and therefore, there is also a problem of uneconomical problems.

On the other hand, as roads are being constructed to secure safe operation of large-sized and high-speed vehicles, rock wall and slope slope are generated in Korea where the mountain area is 70%.

In addition, rock climbing and slope slope sections have a lot of rock climbing and /

However, most of the existing rockfall prevention measures consist of a structure in which concrete is placed and fixed around the H-shaped support (ie, H-beam) at a predetermined interval on the ground, and then cables and a wire mesh are installed around the H- An anchor bolt is inserted into the upper surface of the foundation concrete when the foundation concrete for installation of the rockfall prevention apparatus is installed at a predetermined height, and a bottom plate having a bolt hole is welded to the zinc-plated H type support The foundation was constructed so that the bolt hole was aligned with the upper end of the foundation concrete, the bolts were fastened with the nuts, and the cables and the wire net were installed.

However, a falling rock having such a constitution can directly install a separate H-shaped support (i.e., H-shaped beam) directly on the foundation concrete regardless of the installation of a concrete retaining wall or a precast retaining wall or a prefabricated retaining wall installed on a slope It is a structure that is integrated or integrated with base concrete using an anchor bolt so that it can be disassembled and fixed. Due to its complicated structure, when the condition of the construction site is poor, it takes a long period of construction. Especially, Needless to say, there is a problem of unnecessary construction cost and uneconomical problems.

Korean Patent Registration No. 10-0923049 (October 15, 2009) Korean Registered Patent No. 10-1066752 (September 15, 2011) Korean Registered Patent No. 10-1328436 (November 06, 2013) Korean Patent Publication No. 2002-0008288 (January 30, 2002)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems of the prior art, and it is an object of the present invention to provide a retaining wall for a slope of a river embankment, a coast road, a residential area, Front and rear PC panels installed at predetermined intervals in the forward and backward directions from the bottom of the front and rear PC panels, And an inclined angle of the front PC panel is adjusted by a plurality of panel spacing adjusting and fixing means, and an H-shaped beam for preventing rear PC panel sliding is provided in the vertical direction so as to be closely attached to the inner surface of the rear PC panel, Shaped beam is formed on the inner surface of the rear PC panel, which is in contact with the rear surface of the beam-shaped beam, The front and rear PC panels can be poured with concrete in the space between the front and rear PC panels to form a rigid and beautiful appearance without forming a separate mold for forming a concrete pouring space, It is an object of the present invention to provide a prefabricated retaining wall which can form a retaining wall with an accurate inclination and can shorten a construction period, thereby eliminating the need for a mold capable of drastically reducing manpower and labor costs.

Another object of the present invention is to provide a method of manufacturing a rear PC panel, in which an upper portion of an H-shaped beam for preventing the rear PC panel from being installed in a vertical direction on the inner surface of the rear PC panel is extended by a predetermined height above the retaining wall, It is possible to greatly improve the usability and compatibility of the retaining wall. In addition, the construction period and the construction cost due to the installation of the retaining wall and the rock slope barrier Type reinforced concrete retaining wall which is very rigid and has a strong fixing force for the H-shaped beam used for installing a rockfall preventing device, and which can significantly improve safety accident prevention efficiency due to rockfall.

Another object of the present invention is to provide a plurality of drainage holes for drainage pipes at different heights on the front and rear PC panels so that the drainage pipe can be inclined. Shaped drainage water guiding protrusion and the V-shaped drainage water guiding protrusion so that the drainage water including the groundwater generated in the slope can be smoothly discharged to the outside through the drain pipes, And it is an object of the present invention to provide a prefabricated retaining wall that does not require a mold to prevent the slope from collapsing.

It is another object of the present invention to provide a molding retaining wall which does not require a mold to form a pattern having various shapes on the front face of a front PC panel so that the retaining wall itself and the surrounding landscape can be made beautiful.

In order to accomplish the above object, the present invention provides a method of manufacturing a structure in which a plurality of retaining rings are formed on a rear surface of a foundation in which inserts are inserted at regular intervals, or in which the base concrete structure is inclined at a predetermined angle from a front portion to a rear portion thereof A plurality of front PC panels provided so as to be laminated in the left and right direction and in multiple stages in the upward and downward directions; A plurality of latching rings are formed in the factory in a form in which inserts are inserted at predetermined intervals, or in a top-up state of the base concrete structure, in a vertical direction with a predetermined distance from the front PC panel, A plurality of rear PC panels installed so as to be laminated in multiple stages in the upward and downward directions; A plurality of panel spacing adjusting and fixing means for mutually connecting the front and rear PC panels to each other so as to maintain a predetermined distance and for increasing a coupling force with concrete laid in a space formed between the front and rear PC panels; A plurality of H-shaped beams stuck to the ground in a vertically erected state such that the back surface is in close contact with the inner surface of the rear PC panel, or fixed to the upper surface of the base concrete structure to prevent the rear PC panel from being pushed; And concrete that is poured into a space formed between the front and rear PC panels to integrate them.

At this time, a beam insertion groove is formed in the inner surface of the rear PC panel, which is in contact with the rear surface of the H-shaped beam, so that a part of the H-shaped beam can be inserted in the vertical direction.

In addition, the beam insertion groove is further formed with a beam blocking projection for preventing a portion of both sides of the rear surface of the H-shaped beam from being caught and prevented from flowing in the forward, backward, left, and right directions.

It is also possible to provide a plurality of panel spacing and securing means in diagonal directions with respect to the up and down direction between the front and rear PC panels, or between the front and rear PC panels and the upper surface of the ground or foundation concrete structure in diagonal directions So that the front and rear PC panels having the laminated state can be prevented from being separated in the upward and downward directions.

In this case, the panel interval adjusting and fixing means includes a turn buckle.

The upper portion of the H-shaped beam is exposed to the upper portion of the retaining wall by a predetermined height, and the cable and the wire net are further installed on the H-shaped beam exposed above the retaining wall in a rock- .

A plurality of pipe insertion holes for discharging effluent water are formed at different heights on the front and rear PC panels, and a drain pipe is sloped in the pipe insertion holes for discharging effluent formed on the front and rear PC panels, respectively. do.

The rear PC panel further has an outflow water guide protrusion and a "V" shaped outflow water protrusion protruding from the back surface of the rear PC panel so as to flow into the drainage pipe formed on the slope.

In addition, a front surface of the front PC panel is further provided with a pattern having various shapes.

As described above, according to the prefabricated retaining wall of the present invention, since the retaining wall is formed in a site such as a river bank, a coast road, a slope of a residential area, and the like including a slope of a road and a park area, Front and rear PC panels installed at predetermined intervals in the forward and backward directions from the bottom of the oblique plane are stacked successively in the left and right direction and in multiple stages in the upward and downward directions by a desired height, The spacing of the panels and the inclination angle of the front PC panel are controlled by a panel interval adjusting and fixing means including a turn buckle and an H type beam for preventing the rear PC panel from being slid in a vertical direction in close contact with the inner surface of the rear PC panel A beam insertion groove into which a part of the H-shaped beam can be inserted is formed on the inner surface of the rear PC panel to which the rear surface of the H- A concrete structure is provided in the space portion between the front and rear PC panels to form a beam locking protrusion in the front portion of the beam insertion groove, It is possible to form a retaining wall that is beautiful, and the vertical vertical degree and the front inclination can be precisely formed, as well as the construction period can be shortened, thereby drastically reducing manpower and labor costs.

Second, the upper portion of the H-shaped beam for preventing the rear PC panel from being installed in the vertical direction on the inner surface of the rear PC panel is extended to the upper portion of the retaining wall by a predetermined height, and a cable and a wire mesh are formed on the H- It is possible to greatly improve the usability and compatibility of the retaining wall, as well as greatly reduce the construction period and construction cost due to the installation of retaining walls and rock slope measures. In particular, the fixing force of the H-shaped beam used for the installation of the rockfall protection is very strong, and the efficiency of prevention of the safety accident caused by the rockfall can be greatly improved.

Third, a plurality of pipe insertion holes for discharging effluent water are formed at different heights on the front and rear PC panels so that the drain pipe can be inclined. The back PC panel is smoothly introduced into the drainage pipe It is possible to further prevent the collapse of the retaining wall and the slope due to the effluent water by allowing the drainage guiding projections and the "V" shaped effluent guiding projections to be further protruded to be discharged to the outside through the drainage pipes including the groundwater generated from the slope have.

Fourth, a front surface of the front PC panel is formed with a pattern having various shapes, so that the retaining wall itself and the surrounding landscape can be made beautiful.

1 is a partial perspective view of a retaining wall to which an embodiment of the present invention is applied.
2 is a plan view when assembling panels according to an embodiment of the present invention;
FIGS. 3 and 4 are front and rear perspective views, respectively, according to an embodiment of the present invention. FIG.
5 is a side cross-sectional view of a retaining wall to which an embodiment of the present invention is applied.
6 is a side cross-sectional view of a retaining wall to which another embodiment of the present invention is applied.
7 is a partial perspective view of a retaining wall to which another embodiment of the present invention is applied.
8 (a) and 8 (b) are plan sectional views for explaining the combined state of the rear PC panel and the H-shaped beams in the present invention.

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

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a perspective view of a retaining wall to which an embodiment of the present invention is applied, FIG. 2 is a plan view of assembling panels according to an embodiment of the present invention, and FIGS. FIG. 5 is a side sectional view of a retaining wall to which an embodiment of the present invention is applied.

6 is a side sectional view of a retaining wall to which another embodiment of the present invention is applied, FIG. 7 is a perspective view of a retaining wall to which another embodiment of the present invention is applied, and FIGS. 8 (a) Sectional view for explaining the combined state of the rear-side PC panel and the H-type beams.

According to the present invention,

A plurality of latching rings 11 are formed on the back surface of the foundation concrete structure 30 at a predetermined interval so as to be insert-inserted into the foundation, or have a shape inclined at a predetermined angle from the front portion to the rear portion of the base concrete structure 30, A plurality of front PC panels (10) successively stacked in a plurality of stages in an upward and downward direction;

A plurality of hooking loops 21 are manufactured in the factory in the form of inserts inserted at regular intervals and are vertically installed at a predetermined distance from the front PC panel 10 on the upper surface of the base concrete structure 30 A plurality of rear PC panels (20) provided in a stacked manner in a leftward and rightward direction and in a plurality of stages in an upward and downward direction;

The front and rear PC panels 10 and 20 are coupled to each other so as to maintain a predetermined distance and at the same time the bonding force with the concrete 60 placed in the space formed between the front and rear PC panels 10 and 20 A plurality of panel spacing and securing means (40) for increasing the spacing of the panels;

A plurality of H-shaped beams (not shown) that are stood in a vertical direction so that the back surface is in close contact with the inner surface of the rear PC panel 20 or fixed to the upper surface of the base concrete structure to prevent the rear PC panel 20 from being pushed (50);

The panel interval adjusting and securing means 40 and the H-shaped beam 50 (50) are inserted into the space formed between the front and rear PC panels 10 and 20 to include the front and rear PC panels 10 and 20, (60) for mutually integrating the plurality of concrete members (60).

At this time, a beam insertion groove 22 is formed in which a part of the H-shaped beam 50 can be inserted in the vertical direction on the inner surface of the rear PC panel 20, which is in contact with the rear surface of the H-shaped beam 50 .

The beam insertion groove 22 is formed on both sides of a front opening of the beam insertion groove 22 so that a part of both sides of the rear surface of the H-shaped beam 50 is hooked, thereby preventing the rear PC panel 20 from moving in the forward, And the base 23 is further formed to protrude.

The upper and lower PC panels 10 and 20 and the ground or base concrete structure 30 may be sloped upward or downward between the front PC panel 10 and the rear PC panel 20, It is possible to prevent the front and rear PC panels 10 and 20 having the laminated state from being separated in the upward and downward directions by further providing a plurality of panel gap adjusting and fixing means 40 in the oblique direction between the upper surfaces So that it is possible to obtain a desired image.

At this time, the panel interval adjusting and fixing unit 40 includes a turn buckle.

The upper portion of the H-beam 50 is exposed by a predetermined height above the retaining wall, and the upper portion of the retaining wall is exposed to the upper portion of the H-beam 50, A cable 81 and a wire mesh 82 are further provided.

A plurality of pipe insertion holes 14 and 24 for discharging effluent water are formed on the front and rear PC panels 10 and 20 at different heights and on the front and rear PC panels 10 and 20 And a drain pipe (70) is provided in an inclined manner in each of the formed pipe outlet holes (14) and (24).

The rear PC panel 20 is further provided with an outlet water guiding protrusion 25 and a V-shaped outlet water guiding protrusion 26 protruding from the back surface of the rear PC panel 20 so as to be introduced into the drain water pipe 70 .

In addition, the front PC panel 10 is further provided with a pattern portion 12 having various shapes.

Hereinafter, the operation and effect of the present invention will be described.

1 to 5, a plurality of front PC panels 10, a plurality of rear PC panels 20, a plurality of panel spacing adjusting and fixing means (not shown) 40, a plurality of H beams 50, and a concrete 60 to form a reinforced retaining wall on various slopes, it is possible to form a concrete pouring space without forming a separate concrete form, The main technical component is that the slope can be formed precisely and the construction period can be shortened to drastically reduce manpower and labor costs.

In this case, the front PC panels 10 are manufactured to have a square plate shape having a predetermined thickness and volume using reinforcing bars and concrete in the factory. As shown in FIGS. 3 and 4, A plurality of latching hooks 11 for engaging with each other are inserted in a predetermined interval.

The front PC panels 10 having the above-described configuration are installed continuously in the left and right directions on various slope surfaces or the upper surface front part of the foundation concrete structure 30 to which the retaining wall of the present invention is applied, And the upper portion is erected at an angle to the rear portion so as to be inclined at a predetermined angle.

At this time, when the front surface of the front PC panels 10 is further formed with a pattern 12 in the shape of various patterns including a mark or name of a local government body, .

3 and 4, the rear PC panels 20 are manufactured in the same manner as the front PC panels 10 so as to have a rectangular plate shape having a predetermined thickness and volume using reinforcing bars and concrete. On the inner surface, a plurality of latching rings 21 for coupling the panel spacing and fastening means 40 are insert-inserted at regular intervals.

The rear PC panels 20 having the above-described structure can be installed in various slopes or on the upper surface of the foundation concrete structure 30 to which the retaining wall of the present invention is applied, in a vertical direction at a predetermined distance from the front PC panel 10 And are provided so as to be laminated in the left and right direction and in multiple layers in the up and down direction.

At this time, in the vertical direction on the inner surface of the rear PC panel 20, a part of the rear surface of the H-shaped beam 50, which will be described later, is inserted as shown in FIGS. 2 and 8A to further form the beam insertion groove 22 The H-shaped beam 50 installed in the vertical direction in the rear PC panel 20 as well as the rear PC panel 20 can be prevented from flowing left and right.

3, 4 (a) and 4 (b) show the vertical direction at both sides of the front opening of the beam insertion groove 22 formed such that a part of the H-shaped beam 50 is inserted in the vertical direction on the inner surface of the rear PC panel 20, When the H-shaped beam 50 is provided on the inner side of the rear PC panel 20 as shown in FIGS. 8A and 8B, the beam blocking protrusions 23 are formed on both sides of the rear side of the H-shaped beam 50 The rear PC panel 20 itself can be completely prevented from flowing in the forward, backward, left, and right directions by keeping a part thereof hooked on the beam locking protrusion 23, thereby maintaining a firm fixed state.

On the upper, lower, right, and left side surfaces of the front and rear PC panels 10 and 20, an engaging groove and a locking protrusion, which are generally concave and convex, are formed in opposite directions to each other When the front and rear PC panels 10 and 20 are stacked in the upward and downward directions or when they are installed successively in the left and right direction, the engagement grooves and the locking projections having the concavo- , The front PC panel 10 or the rear PC panel 20 adjacent to each other are maintained without being separated from each other.

In addition, the panel interval adjusting and fixing means 40 of the present invention includes a turn buckle. The panel interval adjusting and fixing means 40 includes a latching ring (not shown) installed in the front and rear PC panels 10 and 20, 11) 21, and then the distance between the front and rear PC panels 10, 20 is maintained by adjusting the length through rotation of the nut coupled between the bolts on both sides The front PC panel 10 and the rear PC panel 10 can be adjusted so as to have a predetermined inclination angle and at the same time the front PC panel 10 and the rear PC panel 10 20 and the concrete 60 as well as the front and rear PC panels 10 and 20 when the concrete 60 is cured after being poured into the space formed between the front and rear PC panels 10 and 20.

The plurality of panel interval adjusting and securing means 40 are not limited to be installed only between the front and rear PC panels 10 and 20 as described above. A larger bond force or the like may be required between the ground or the foundation concrete structure 30, as described below.

That is, the upward and downward directions between the front PC panel 10 and the rear PC panel 20 may be diagonal or may be inclined relative to the front and rear PC panels 10 and 20 and the ground or the base concrete structure 30 A plurality of panel interval adjusting and fixing means 40 may be further provided in the diagonal direction between the upper surfaces as shown in Fig.

Thus, when a plurality of panel spacing and fixing means 40 are further installed between the floor or foundation concrete structures 30 including the front and rear PC panels 10 and 20, It is possible not only to prevent the rear PC panels 10 and 20 from being separated in the upward and downward directions but also to prevent the front and rear PC panels 10 and 20 from separating from the upper surface of the ground or foundation concrete structure 30 Can be completely prevented.

5, the H-beams 50 are basically set up in a vertical direction such that the back surface is closely contacted to the inner surface of the rear PC panel 20, and then the upper ends of the front and rear PC panels 10, So that the rear PC panel 20 can be prevented from being pushed by fixing it to the upper surface of the base concrete structure.

When the beam insertion groove 22 is formed on the inner surface of the rear PC panel 20 as described above, a part of the rear surface of the H-shaped beam 50 is inserted into the beam insertion groove 22 as shown in FIGS. 2 and 8A. 3, 4, and 5, when the beam-locking projections 23 are formed on both sides of the front opening of the beam insertion groove 22 of the rear PC panel 20, A part of the rear surface of the H-shaped beam 50 inserted into the beam insertion groove 22 of the rear PC panel 20 is inserted into the beam insertion recess 22 formed in the beam insertion groove 22, as shown in FIG. 8 (b) 23).

Therefore, the rear PC panel 20 itself is retained in the H-shaped beam 50, so that the rear PC panel 20 is not fixed in the front, rear, left, and right directions.

In the present invention, the upper end of the H-shaped beam 50 is located at a position lower than the upper surface of the front and rear PC panels 10 and 20 as described above. Shaped beam 50 is exposed to the upper portion of the retaining wall by a predetermined height and the cable 81 and the wire mesh 82 ) Was installed to make it possible to use it as a rockfall prevention measure in the rock slope or cut slope section.

When the H beam 50 is used as a rockfall countermeasure, the use and compatibility of the retaining wall can be greatly improved. In addition, the construction period and the construction cost due to the installation of the retaining wall and the rockfall can be drastically shortened and saved , And particularly the fixing force of the H-beam used for the installation of the rockfall protection is very strong, and the efficiency of prevention of the safety accident caused by the rockfall can be greatly improved.

The concrete 60 is cured in one piece after being placed in a space formed between the front and rear PC panels 10 and 20 to replace the form. The concrete 60 is integrally cured in the front and rear PC panels 10 and 20, The panel spacing and fixing means 40 and the H-shaped beams 50 are integrated with each other to form a solid retaining wall.

 In the present invention, a plurality of pipe insertion holes 14 and 24 for discharging effluent water are formed at different heights on the front and rear PC panels 10 and 20, and the front and rear PC panels 10 and 20, (14) (24) for discharging effluent formed on the front and rear PC panels (10) and (20), respectively, when the glass panels (20) are installed in the form of a mold using a plurality of panel spacing and fixing means The drain pipe 70 can be inclined.

At this time, a plurality of outflow water guide protrusions 25 having a rectangular protrusion shape and an outflow water guide protrusion 26 having a "V " shape are further formed on the back surface of the rear PC panel 20, The effluent reaching the back surface of the rear PC panel 20 flows downward through the plurality of effluent guiding protrusions 25 and then flows along the upper surface of the effluent guiding protrusion 26 having the "V" It can be smoothly discharged to the outside of the retaining wall through the inside of the drain pipe 70 which is guided to the side of the discharge pipe insertion hole 24 and is inclined.

Accordingly, the effluent including the groundwater generated from the slope can be smoothly discharged to the outside of the retaining wall through the drain pipes 70 installed between the front and rear PC panels 10 and 20, so that the retaining wall and the slope It is possible to prevent the collapse of the vehicle.

Although the preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Which will be apparent to those skilled in the art.

10: Front PC Panel
11: Retaining ring 12:
14: Pipe insertion hole for discharging effluent
20: Rear PC Panel
21: Retaining ring 22: Beam insertion groove
23: beam blocking device 24: pipe insertion hole for discharging effluent
25: Runoff water guide portion 26: Runoff water guide projection
30: Floor or foundation concrete structure
40: Panel spacing adjustment and fixing means
50: H beam
60: Concrete
70: drain pipe
81: Cable 82: Wire mesh

Claims (9)

A plurality of retaining rings are formed on the back surface of the foundation concrete structure in an insert-inserted manner with a predetermined interval, or in the form of being erected inclined at a predetermined angle from the front portion to the rear portion of the foundation concrete structure, A plurality of front PC panels installed to be laminated in multiple stages in a downward direction;
A plurality of latching rings are formed in the factory in a form in which inserts are inserted at predetermined intervals, or in a top-up state of the base concrete structure, in a vertical direction with a predetermined distance from the front PC panel, A plurality of rear PC panels installed so as to be laminated in multiple stages in the upward and downward directions;
A plurality of panel spacing adjusting and fixing means for mutually connecting the front and rear PC panels to each other to maintain a predetermined distance and for increasing a coupling force with concrete laid in a space formed between the front and rear PC panels;
A plurality of H-shaped beams stuck to the ground in a vertically erected state such that the back surface is in close contact with the inner surface of the rear PC panel, or fixedly installed on the upper surface of the basic concrete structure to prevent the rear PC panel from being pushed;
And concrete poured into a space formed between the front and rear PC panels,
And a beam insertion groove into which a part of the H-shaped beam is inserted in a vertical direction on the inner surface of the rear PC panel to which the rear surface of the H-shaped beam is contacted, A part of both sides is hooked so as to form a beam locking projection which prevents the beams from moving in the forward, backward, leftward and rightward directions,
A plurality of drainage pipes for discharging effluent water are formed at different heights on the front and rear PC panels, and a drain pipe is sloped in a pipe insertion hole formed in each of the front and rear PC panels,
Wherein a rear wall of the rear PC panel is formed with an outlet water guiding protrusion and a "V" -like outlet water guiding protrusion protruding to allow the effluent generated in the slope to flow into the drain pipe side.
delete delete The method according to claim 1,
A plurality of panel spacing adjusting and fixing means are additionally provided in oblique directions with respect to the upward and downward directions between the front PC panel and the rear PC panel, or in a diagonal direction between the front and rear PC panels and the upper surface of the ground or basic concrete structure So that the front and rear PC panels having a stacked state can be prevented from being separated in the upward and downward directions.
The method of claim 4,
Characterized in that said panel spacing and fastening means comprise a turn buckle.
The method according to claim 1,
And an upper portion of the H-shaped beam is exposed to the upper portion of the retaining wall by a predetermined height, and a cable and a wire mesh are further provided on the H-shaped beam exposed above the retaining wall, Prefabricated retaining wall that does not need mold to feature.
delete delete The method according to claim 1,
Wherein a front surface of the front PC panel is further provided with a pattern having various shapes.

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