KR100769945B1 - Precast ecology retaining wall and construction method - Google Patents

Abstract

A precast ecological retaining wall and a construction method of a precast ecological retaining wall are provided to stabilize the structure, to make construction easy, to improve in appearance, to harmonize with the surroundings and to offer habitats for animals and plants. A precast ecological retaining wall(A) is formed for stabilizing the structure and making construction easy by providing a lower layer(300), a middle layer(200) and an upper layer(100) composed of standard blocks(10,10',10") and finishing blocks(20,20',20") on the upper part of a concrete layer(400) in order and binding together using prestress steel bars inserted vertically to the rear of the standard blocks and the finishing blocks, and providing habitats for animals and plants by growing flowers and plants in vegetation spaces(16,16',16") of the lower layer, the middle layer and the upper layer. A construction method of a precast ecological retaining wall comprises the steps of: forming a foundation by spreading rubble on the ground and placing concrete on the rubble; forming a concrete layer by fixing a pair of prestress steel bars on the foundation and arranging reinforcing bars, and then placing concrete to make a spiral part of the top of the prestress steel bars exposed outward; forming a lower layer by piling up standard blocks or standard blocks and finishing blocks; forming a middle layer by piling up standard blocks or standard blocks and finishing blocks on the lower layer; forming an upper layer by piling up standard blocks or standard blocks and finishing blocks on the middle layer, forming ecological environment by growing flowers and plants in vegetation spaces provided by the upper layer, the lower layer and the upper layer, and reinforcing by installing a grid having the standardized mesh width on upper and lower connections of the upper and lower blocks of each layer for resisting horizontal earth pressure.

Description

Precast ecology retaining wall and construction method

1 is a perspective view showing a precast ecological environment retaining wall according to the present invention;

Figure 2 is a rear perspective view showing a precast ecological environment retaining wall according to the present invention,

3 is a side view showing a precast ecological environment retaining wall according to the present invention;

4 is a perspective view showing the upper standard block and the finishing block of the precast ecological retaining wall according to the present invention;

Figure 5 is a perspective view of the middle standard block and the finishing block of the precast ecological retaining wall according to the present invention,

6 is a perspective view showing a lower standard block and a finishing block of the precast ecological retaining wall according to the present invention;

7 is a plan view comparing the upper, lower, and middle standard blocks of the precast ecological environment retaining wall according to the present invention;

8 is an exploded perspective view showing an installation state of the prestressed steel bar of the precast ecological environment retaining wall according to the present invention;

9 is an exploded perspective view illustrating a connection state of each layer of prestressed steel bars of the precast ecological environment retaining wall according to the present invention;

10 is an exploded perspective view showing an installation state of the concrete layer prestressed steel bar of the precast ecological environment retaining wall according to the present invention;

11 is a rear perspective view illustrating an installation state of a precast ecological environment retaining wall according to the present invention;

12 is a rear perspective view illustrating an installation state of a precast ecological environment retaining wall according to the present invention;

Figure 13 is a rear perspective view showing the installation state of the precast ecological environment retaining wall according to the invention 3.

<Explanation of symbols for main parts of the drawings>

10, 10 '10 ": Standard Blocks 11, 11', 11": Full Board

11a, 11a ', 11a ": Bends 11b, 11b', 11b": Wings

12, 12 ', 12 ": side wall 13, 13', 13": anchorage

13a, 13a ', 13a ": insertion hole 14, 14': rear anchorage

15, 15 ', 15 ": Drainage 16, 16', 16": Vegetation space

20, 20 ', 20 ": Finishing blocks 21, 21', 21": Front plate

22, 22 ', 22 ": support wall 23, 23', 23": anchorage

23a, 23a ', 23a ": insertion hole 24, 24': rear anchorage

25, 25 ': drain

30a, 30b, 30c, 30d, 30e, 30f, 30f ': prestressed steel bar

31: spiral portion 41: anchor plate

42: steel plate 43: nut

45: connecting bracket 46: fixing plate

47: connector 48: rod

49: turnbuckle 50: grid

80: washer 100: upper layer

200: middle layer 300: lower layer

400: concrete layer 500: foundation

A: ecological retaining wall

The present invention relates to an ecological environment retaining wall and a construction method thereof, and in particular, it is structurally stable, easy to construct, beautiful in appearance, easy to harmonize with the surroundings, and can provide a habitat for plants and animals. It relates to a cast ecological environment retaining wall and its construction method.

Generally, retaining walls are installed on the roads, rivers, and waterways to prevent soil leakage, which is divided into cast-in-place retaining walls and prefabricated retaining walls.

On-site retaining walls are highly desirable in terms of structural mechanics, but the construction process is cumbersome and requires a lot of labor. In addition, the construction of prefabricated retaining walls made by combining prefabricated blocks in factories has recently increased. have.

The prefabricated retaining wall made by combining the blocks made in advance in the factory as described above is relatively easy to construct, easy to secure quality, easy to manage, and does not require curing time after construction compared to the field-cast retaining wall. As a result, most retaining walls are being constructed as prefabricated retaining walls.

However, the existing prefabricated retaining wall has a large volume of heavy structure in the form of a block, it requires a large heavy equipment for moving and construction, and should be installed by a professional man, there is a problem that the land utilization is low because the installation area of the bottom portion is relatively large.

Accordingly, the present invention has been made to solve the problems described above, structurally stable, easy to construct, beautiful appearance and easy to harmonize with the surroundings, and provides a habitat for plants and animals The purpose is to provide a precast ecological retaining wall and its construction method.

Precast ecological environment retaining wall according to the present invention for achieving the above object is

The lower, middle, and upper layers consisting of standard blocks and finishing blocks are sequentially provided on the upper concrete layer, and each of the layers is integrally connected by a prestressed steel rod inserted vertically to the rear of the standard block and the finishing block. .

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

1 is a perspective view showing a precast ecological environment retaining wall according to the present invention, Figure 2 is a rear perspective view showing a precast ecological environment retaining wall according to the present invention, Figure 3 is a precast ecological environment retaining wall according to the present invention 4 is a perspective view showing the upper standard block and the finishing block of the precast ecological environment retaining wall according to the present invention, Figure 5 is a middle layer standard block and the finishing block of the precast ecological environment retaining wall according to the present invention Figure 6 is a perspective view, Figure 6 is a perspective view of the lower standard blocks and finishing blocks of the precast ecological environment retaining wall according to the present invention, Figure 7 is a top, lower, middle standard blocks of the precast ecological environment retaining wall according to the present invention Figure 8 is a plan view showing a comparison, Figure 8 is an exploded perspective view showing the installation state of the prestress steel bar of the precast ecological environment retaining wall according to the present invention, 9 is an exploded perspective view showing a connection state of each layer of prestressed steel bars of the precast ecological environment retaining wall according to the present invention, and FIG. 10 is a view illustrating an installation state of the concrete layer prestressed steel bars of the precast ecological environment retaining wall according to the present invention. FIG. 11 is a rear perspective view 1 illustrating an installation state of the precast ecological environment retaining wall according to the present invention, and FIG. 12 is a rear perspective view 2 illustrating an installation state of the precast ecological environment retaining wall according to the present invention. Figure 13 is a rear perspective view 3 showing the installation state of the precast ecological environment retaining wall according to the present invention.

As shown in these drawings, the precast ecological environment retaining wall A according to the present invention is a structure in which the concrete layer 400, the lower layer 300, the middle layer 200, and the upper layer 100 are organically combined.

Here, the concrete layer 400 is formed on the foundation 500 made by laying rubble and placing concrete, and a pair of prestressed steel bars 30f and 30f 'maintaining a predetermined interval at an intermediate position on the side. The left and right are arranged continuously and are installed vertically.

In addition, the prestressed steel rods (30f, 30f ') installed in the concrete layer 400, as shown in Figure 10, the spiral portion 31 of the lower, the steel plate 42 is fixed to the upper part of the height adjustment frame (41a) It is installed vertically by fastening with the nut 43 through the upper through hole 42a.

At this time, the spiral portion 31 of the upper end of the prestressed steel bar (30f, 30f ') is projected over the upper surface of the concrete layer (400).

In addition, the lower layer 300, the standard block 10 or the standard block 10 and the finishing block 20 is laminated on the concrete layer 400, prestressed steel bar protruding above the concrete layer 400 (30f, 30f ') separate prestressed steel rods (30a, 30b) coupled to the upper end of the standard block 10 and the closing block 20, the insertion hole (13, 14, 23, 24) formed in the ( It is laminated through 13a, 14a, 23a, 24a.

In addition, the coupling of the prestressed steel rods 30f and 30f 'of the concrete layer 400 and the prestressed steel rods 30a and 30b of the lower layer 300 is as shown in FIG. 9, the prestressed steel bars 30f of the concrete layer 400. , 30f ') the spiral portion 31 at the lower end of the prestressed steel rods 30a and 30b of the lower layer 300 is fastened to the connection bracket 45 fastened to the upper spiral portion 31, and the concrete layer 400 In the state where the prestressed steel rods 30f and 30f 'and the prestressed steel rods 30a and 30b of the lower layer 300 are combined, the fixing plate 46 is formed on the upper spiral portion 31 of the prestressed steel rods 30a and 30b of the lower layer 300. After insertion, the nut 43 is fastened or the fixing plate 46 is inserted, and the nut 43 and the connection bracket 45 are fastened respectively to fix the standard block 10 and the finishing block 20 by lamination.

In addition, the standard block 10 of the lower layer 300, as shown in Figure 6a, the front plate 11 having the bent portion (11a), the wing portion (11b) and the drain hole 15, and the insertion hole (13a) , 14a is formed of a side wall 12 having front and rear anchoring holes 13 and 14 and drains 15, and the finishing block 20 of the lower layer 300 is shown in FIG. 6B, The front plate 21 having a width corresponding to the width 1/2 of the front plate 11 of the standard block 10, and the front and rear anchoring holes (23, 24) and the drain port 25, the insertion hole (23a, 24a) is formed It consists of the support wall 22 provided.

And, the upper and lower ends of the lower layer 300 is made of the left, right continuous arrangement of the standard block 10, the closing block 20 is made of a combination of the finishing blocks on both sides, the upper standard block 10 and The lower standard block 10 is stacked in a zigzag shape, and the front end of the front plate 11 of the upper standard block 10 and the front end of the front plate 11 of the lower standard block 10 are positioned on the same vertical line.

In addition, the middle layer 200 is a standard block 10 'or the standard block 10' and the finishing block 20 'is laminated on the lower layer 300, separate from the lower prestress steel rods (30a, 30b) Prestressed steel bars 30c and 30d are inserted holes 13a 'and 14a' formed on the front and rear anchoring holes 13 ', 14', 23 'and 24' of the standard block 10 'and the finishing block 20'. , 23a ', and 24a'.

Then, the prestressed steel bar 30c penetrating through the insertion holes 14a 'and 24a' on the rear fixing holes 14 'and 24' of the standard block 10 'and the finishing block 20' forming the middle layer 200. As shown in Figure 9, the spiral portion 31 at the lower end of the insertion hole 13a, which is formed on the standard block 10 of the lower layer 300 and the front fixing holes 13, 23 of the finishing block 20, Helix of the upper end is coupled to the coupling bracket 45 fastened to the upper spiral portion 31 of the prestressed steel bar 30b passing through 23a), and the lower spiral portion 31 of the prestressed steel bar 30c is completed. After the fixing plate 46 is inserted into the portion 41, the nut 43 is fastened.

In addition, a prestressed steel bar 30d penetrating through the insertion holes 13a 'and 23a' on the front fixing holes 13 'and 23' of the standard block 10 'and the finishing block 20' forming the middle layer 200. The nut (43) penetrates through the fixing plate (46) into which the spiral portion 31 at the bottom thereof is inserted on the front lower fixing holes (13 ', 23') of the standard block (10 ') and the finishing block (20'). The fixing plate 46 is inserted into the upper spiral portion 31 in the state where the lower end fixing of the prestressed steel bar 30d is completed, and then the nut 43 and the connection bracket 45 are fastened.

And, as shown in Figure 5a, the standard block 10 'of the middle layer 200, the bent portion (11a') and the wing portion (11b ') and the drain ( A side wall 12 'having a front plate 11' having a 15 ', a front and rear anchoring holes 13', 14 'having insertion holes 13a', 14a 'and a drain 15'. The finishing block 20 'of the middle layer 200 corresponds to 1/2 of the width of the front plate of the standard block 10' like the finishing block 20 of the lower layer 300, as shown in FIG. And a support wall 22 'having front and rear fixing holes 23' and 24 'formed with insertion holes 23a and 14a', and drain holes 25 '.

In addition, the length of the side wall 12 'or support wall 22' of the middle layer 200 standard block 10 'and the finishing block 20' is shown in Figure 7, the lower layer 300 standard block (10) and the rear fasteners 14 of the standard block 10 'and the finishing block 20' of the middle layer 200 in the installation state is shorter than the length of the side wall 12 and the supporting wall 22 of the finishing block 20. ', 24' are located above the lower anchoring standard block 10 and the front anchorages 13 and 23 of the finishing block 20.

At this time, the thickness t2 'of the side wall 12' and the support wall 22 'of the standard block 10' and the finishing block 20 'of the middle layer 200, and the thickness of the front plates 11' and 21 '. (t1 ') is thinner than the thickness t2 of the side wall 12 and the support wall 22 of the lower layer 300 standard block 10 and the finishing block 20 and the thickness t1 of the front plate 11. More stable lamination is possible.

And, the upper and lower ends of the middle layer 200 is made of a left, right continuous arrangement of the standard block 10 'like the lower layer 300, the finishing block 20' is coupled to the finishing portion on both sides, The upper standard block 10 'and the lower standard block 10' are stacked in a zigzag shape, and the front plate 11 'of the upper standard block 10' and the front plate 11 'of the lower standard block 10'. The tip is located on the same vertical line, but is located a certain distance behind the front end of the lower block 300 standard block 10 and the finishing block 20.

In addition, the upper layer 100 is a standard block 10 "or the standard block 10" and the finishing block 20 "laminated on the middle layer 200, the prestressed steel bar (30c, 30d) of the middle layer 200 The prestressed steel bar 30e, which is separate from), is laminated through the insertion holes 13a ", 23a" formed on the fixing blocks 13 ", 23" of the standard block 10 "and the finishing block 20".

In addition, the prestressed steel bar 30e penetrating through the insertion holes 13a "and 23" on the fixing holes 13 "and 23" of the upper layer 100 has a lower spiral portion 31 as shown in FIG. It is coupled to the connecting bracket 45 fastened to the upper spiral portion 31 of the prestressed steel bar 30d passing through the insertion holes 13a 'and 23a' of the front layer fixing fixtures 13 'and 23'. In the state where the lower end of the prestressed steel bar 30e is completed, as shown in FIG. 8, the fixing plate 46 is inserted into the upper spiral part 31 and then the nut 43 is fastened.

In addition, the standard block 10 "of the upper layer 100 has a front plate 11" having a bend portion 11a ", a wing portion 11b" and a drain 15 "as shown in FIG. And a side wall 12 "having a fixing hole 13" having an insertion hole 13a "formed therein, and the finishing block 20" of the upper layer 100 is a standard block (as shown in FIG. 4B). 10 ") and a support wall 22 " having a front plate 21 " having a width corresponding to 1/2 the width of the front plate and a fixing opening 23 " in which an insertion hole 23a " is formed.

Then, the length of the side wall 12 "or the support wall 22" of the upper layer 100 standard block 10 "and the finishing block 20" is the middle layer 200 standard block, as shown in FIG. Shorter than the lengths of the side walls 12 'and the support walls 22' of the 10 'and the finishing blocks 20' and 20 'of the standard block 10 " and the finishing blocks 20 " The anchorages 13 ", 23") are located above the front anchorage 13 'of the standard block 10' of the middle layer 200.

At this time, the thickness t2 "of the side wall 12" and the support wall 22 "of the standard block 10" and the finishing block 20 "of the upper layer 100, and the thickness t1" of the front plate 11 "are shown. Is the thickness t2 'of the side wall 12' and the supporting wall 22 'of the standard block 10' and the finishing block 20 'of the middle layer 200, and the thickness t1' of the front plate 11 '. Compared to the thinner form, more stable lamination is possible.

In addition, the upper layer 100, as in the lower layer 300 and the middle layer 200, the upper and lower ends are made of the left and right continuous arrangement of the standard block 10 ", both ends of the finishing block (20") The upper standard block 10 "and the lower standard block 10" are stacked in a zigzag form, and the front end of the upper standard block 10 "and the front end of the lower standard block 10" are the same vertical. Located on the ship, but located a certain distance behind the front end of the middle layer 200.

The construction of the precast ecological environment retaining wall according to the present invention having the above configuration will be described.

Precast ecological environment retaining wall construction method according to the present invention is the foundation forming step (S1), concrete layer forming step (S2), lower layer forming step (S3), middle layer forming step (S4), upper layer forming step (S5) and ecological environment The composition step (S6) is made.

Here, the base forming step (S1) is made by laying rubble on the ground and placing concrete on the top of the rubble.

In particular, it is preferable to arrange the ground horizontally before compacting the rubble in the foundation forming step (S1).

In addition, the concrete layer forming step (S2) is fixed to install a pair of prestressed steel bar (30f, 30f ') to maintain a predetermined interval on the base 500, reinforce the reinforcing bar, and installed prestressed steel bar (30f, 30f) ') It is made by pouring concrete to a height where the upper helix can be exposed to the outside.

In the concrete layer forming step (S2) of the pre-stressed steel bar (30f, 30f ') installation of the height adjusting frame (41a) after installing the height adjusting frame (41a) on the base 500 so that it can be installed in the correct position and height The steel plate 42 is installed on the upper part and the nut 43 is fastened to the spiral part 31 of the lower end of the prestressed steel bars 30f and 30f 'inserted into the through hole 42a of the steel plate 42.

In addition, the lower layer forming step (S3) forms the lower end by combining the finishing block 20 at both ends after the standard block 10 on the concrete layer 400 continuously arranged left and right, and the standard block 10 One end is positioned on the same vertical line as one end of the lower finishing block 20, and then left and right are continuously arranged to form an upper end, but the front and rear anchoring holes 13 and 14 of the standard block 10 and the finishing block 20 are formed. , Tension is fixed while the prestressed steel bars 30a and 30b are inserted into the insertion holes 13a, 14a, 23a, and 24a on the upper and lower surfaces of the standard block 10 and the finishing block 20. 21) It is made by sequentially filling and compacting rubble and vegetation soil in the rear.

Here, the stacking of the standard block 10 and the finishing block 20 in the lower layer forming step (S3) is preferably carried out after laying the sub-mixing mortar on the concrete layer 400 to reinforce the stacking state, the standard block (10) and the finishing block (20) after the stacking of the high performance water reducing agent in the insertion hole (13a, 14a) on the upper standard block 10 anchorage (13, 14) after the stacking of the block 10, 20 firmly And, the fitting portion of the blocks (10, 20) and the inner surface of the drain holes (15, 25) is adhesively installed to prevent the soil outflow prevention material to prevent the outflow of soil.

In addition, the middle layer forming step (S4) is formed by placing the standard block 10 'on the lower layer 300, the left and right consecutively arranged and then combining the finishing blocks 20' at both ends to form a lower end, the standard block ( 10 ') One end is placed on the same vertical line as one end of the lower finishing block 20', and then left and right are continuously arranged to form an upper end, but before and after the standard block 10 'and the finishing block 20'. The tension block is fixed while the prestressed steel bars 30c and 30d are inserted into the insertion holes 13a ', 14a', 23a 'and 24a' on the fixing holes 13 ', 14', 23 'and 24'. 10 ') and rubble and vegetation soil in the rear of the front plate (11', 21 ') of the finishing block 20' is made by sequentially and compacted.

Here, after the standard block 10 'and the finishing block 20' are stacked in the middle layer forming step S4, the insertion holes 13a 'and 14a on the upper standard block 10' anchorages 13 'and 14' are stacked. Grouting to ') to solidify the bonding between the blocks 10' and 20 ', and to the outside of the sediment on the inner surface of the joints and drains 15' and 25 'of the blocks 10' and 20 '. Install the earth leakage prevention material to prevent the dust.

In addition, the upper layer forming step (S5) forms a lower end by combining the finishing block (20 ") at both ends after the standard block 10" on the middle layer 200, the left and right consecutively arranged, the standard block ( 10 ") One end is placed on the same vertical line as one end of the lower finishing block (10"), and then left and right are continuously arranged to form an upper end, but the standard block (10 ") and the finishing block (20") anchorage (13 ") , 14 ", 23", and 24 ") on the insertion hole (13a", 14a ", 23a", 24a ") in the prestressed steel bar (30e) is inserted into the tension, the standard block (10") and the finishing block Rubble and vegetation soil are sequentially placed inside the front plates 11 "and 21" and the side walls 12 "and 22" of the 20 "or inside the front plates 11" and 21 "and the support walls 22". It is done by filling and compacting.

Here, after the standard block 10 "and the finishing block 20" are stacked in the upper layer forming step S5, a high-performance water reducing agent is grouted into the insertion hole 13 "of the upper standard block 10" to grout the block ( 10 ", 20") is firmly engaged, and the soil-emission prevention material which prevents the outflow of earth and sand is attached to the fitting part of the blocks 10 "and 20" and the inner surface of the drain opening 15 ".

In addition, the ecological environment creation step (S6) is made by planting the vegetation in the vegetation space (16, 16 ', 16 ") provided by the upper layer (100), the middle layer (200), the lower layer (300).

Precast ecological environment retaining wall and its construction method according to the present invention made of a configuration and construction as described above can be reinforced to the horizontal earth pressure.

That is, when structural reinforcement is required in the cut section, the upper and lower blocks 10, 10 ′, 10 ″, 20, 20 ′, 20 ″ sidewalls 12, 12 ′, 12 &quot; and the sidewalls 12, 12 ', 12 &quot; or the upper and lower connections of the sidewalls 12, 12', 12 &quot; and the support walls 22, 22 ', 22 &quot; as shown in FIG. After installing the connector 47 and sequentially connecting the rod 48 and the turnbuckle 49 and connecting them integrally with the earth or rock anchor located in the natural ground on the rear surface of the retaining wall A, or each layer 100 Upper and lower block sidewalls 10, 10 ′, 10 ″, 20, 20 ′, 20 ″ and side walls 12, 12 ′, 12 ″ or side walls 12, 12 ′, 12 ″ of, 200, 300. 11, the connector 47 is installed, the rod 48 is connected to the connector 47, and the tip of the rod 48 is connected to the upper and lower connections of the support walls 22, 22 'and 22 ". It is possible to reinforce the horizontal earth pressure by fastening the spiral portion (48a) of the washer 80 and the nut (43) to a separate anchor plate 41 and then back-filled.

In addition, when structural reinforcement is required in the fill section, the upper and lower connecting portions of the upper and lower blocks 10, 10 ', 10 ", 20, 20', and 20" of each layer 100, 200, and 300 " As shown in, by installing a grid 50 having a mesh of a predetermined standard it is possible to reinforce the horizontal earth pressure.

Reinforcement to the horizontal earth pressure as described above is made by additionally performing the reinforcement step (S7) after the lower, middle, and upper layer forming step (S3, S4, S5).

The precast ecological environment retaining wall and the construction method thereof according to the present invention having the above-described configuration and construction are laminated through standard blocks 10, 10 ′, 10 ″ and finishing blocks 20, 20 ′, 20 ″. After forming the lower layer, the middle layer, and the upper layer 300, 200, and 100, the lamination state is fixed through the prestressed steel bars 30a, 30b, 30c, 30d, and 30e, thus not only structurally stable but also easy construction, lower, middle layer , Since vegetation can be planted in the vegetation spaces 16, 16 ′, 16 ″ of the upper layers 300, 200, and 100, there is an effect of providing habitats for animals and plants.

Meanwhile, in the above-described embodiment, the lower layer 300, the middle layer 200, and the upper layer 100 have been described as being composed of two stages at the top and the bottom thereof. However, this is only one embodiment, and the retaining wall is formed when the top and bottom blocks are stacked in a zigzag form. Note that it can be configured freely in more than one stage depending on the height.

As described above, the precast ecological retaining wall and the construction method according to the present invention is made by stacking the separated standard block and the finishing block, respectively, so that the construction is easy, and the stacked standard block and the finishing block is prestressed to be installed installed in the rear As it is fixed and integrated by steel rods, it is structurally stable. Since the stacked standard blocks and finishing blocks form a continuous wave form, the appearance is beautiful and the habitat of flora and fauna through the vegetation space of each layer where the standard blocks and finishing blocks are stacked. There is an effect that can provide.

Claims (15)

 A standard block comprising a front plate having a bent portion and a wing, a side wall having at least one anchorage formed with an insertion hole, a front plate having a width corresponding to 1/2 the width of the front plate of the standard block, and at least one anchorage formed with an insertion hole The lower layer, the middle layer, and the upper layer, in which the finishing blocks made of the supporting walls are stacked, are sequentially provided on the upper concrete layer, and each layer is bound by one or more prestressed steel bars vertically inserted into the rear of the standard block and the finishing block. In the precast ecological environment retaining wall which is integrated and consists of a vegetation space for planting plants on the front upper part of each layer, The concrete layer is installed vertically with a pair of prestressed steel bars facing each other at regular intervals in the lateral middle portion is installed vertically, the spiral of the bottom through the through hole on the steel plate is fixed to the upper frame for height adjustment It is installed vertically by fastening with the nut, and the installed spiral of the upper end of the prestressed steel bar is exposed outside the upper surface of the concrete layer The lower layer is composed of a continuous arrangement of left and right of the upper and lower ends of the standard block, the finishing block is coupled to the finish of both sides, the upper standard block and the lower standard block is stacked in a zigzag form, prestressed steel rods installed in the concrete layer A separate prestressed steel rod connected to the upper part is tension-tight through the insertion hole on the standard block and the finishing block anchorage, and the front end of the upper standard block and the front end of the lower standard block are located on the same vertical line. The middle layer is made up of the left and right continuous arrangement of the standard block, the upper and lower ends, the finishing block is coupled to the finish of both sides, the upper standard block and the lower standard block is stacked in a zigzag form, the lower front of the prestress steel bar A separate prestressed steel rod installed in front of it and a separate prestressed steel rod installed in front of it are tension-tight through the insertion hole on the standard block and the finishing block anchorage, and the front end of the upper standard block and the front end of the lower standard block are on the same vertical line. Located in The upper layer is made up of the left and right continuous arrangement of the standard block, the upper and lower ends are made by combining the finishing block at the end of both sides, the upper standard block and the lower standard block is stacked in a zigzag form, the prestress in front of the middle layer A separate prestress steel rod connected to the top of the rod is tension-tight through the insertion hole on the standard block and the closing block anchorage, and the front end of the upper standard block and the front end of the lower standard block are positioned on the same vertical line. Precast ecological environment retaining wall. delete delete delete delete The method according to claim 1, The vegetation space provided in the lower and middle layers is a precast ecological environment retaining wall, characterized in that the front end of the lower layer protrudes compared to the front end of the middle layer and the front end of the middle layer protrudes compared to the front end of the upper layer. The method according to claim 1, The standard blocks and the finishing blocks of the lower layer, the middle layer, and the upper layer are precast ecological retaining wall, characterized in that the thickness of the side wall and the support wall and the thickness of the front plate becomes thicker and the length of the side wall and the support wall becomes longer toward the lower layer. The method according to claim 1, The prestress steel rods inserted into the lower, middle, and upper layers are precast ecological retaining walls, characterized in that the fixing plates, nuts, and connection brackets are fastened and fixed to upper and lower spiral parts. The method according to claim 1, A connector is installed in the upper, lower block sidewalls and sidewalls of the lower, middle, and upper layers, or the upper and lower connections of the sidewalls and the support walls, and the rods and turnbuckles are sequentially connected to the connectors to be located in the natural ground of the retaining wall. Or precast ecological retaining wall, characterized in combination with a rock anchor. The method according to claim 1, The connector is installed on the upper and lower block side walls and side walls of the lower layer, the middle layer, and the upper layer, or the upper and lower connections of the side wall and the support wall, the rod is connected to the connector, and the spiral portion of the rod end is separated using a washer and a nut. Precast ecological retaining wall, characterized by backfilling after fastening to the plate. The method according to claim 1, Precast ecological environment retaining wall, characterized in that the grid having a mesh of a predetermined standard is installed in the upper, lower block connection portion of the lower, middle and upper layers. A foundation forming step (S1) made by laying rubble on the ground and laying concrete on the piled rubble; A concrete layer forming step (S2) formed by fixing a pair of prestressed steel bars maintaining a predetermined interval on an upper part of the foundation and then reinforcing the reinforcing bars, and placing the concrete to a height at which the upper spiral portion of the installed prestressed steel bars can be exposed to the outside (S2); After placing the standard blocks on the upper and left concrete blocks continuously, combine the finishing blocks at both ends to form the bottom, and place one end of the standard block on the same vertical line as the one end of the lower finishing block, and then arrange the left and right consecutively. Form the upper end of the standard block and tension block in the prestress steel rod is inserted into the insertion hole on the front and rear fixing blocks, and the rubble and vegetation soil in the back of the front plate of the standard block and the finishing block, and then compacted An underlayer forming step (S3); After placing the standard blocks on the lower layer in a row, right and left, and combining the finishing blocks at both ends to form a lower end, one end of the standard block is placed on the same vertical line as one end of the lower finishing block, and then left and right consecutively arranged. The upper part is formed by tension fixing in the state where the prestress steel rod is inserted into the insertion hole on the front and rear anchors of the standard block and the finishing block, and the rubble and vegetation soil are sequentially filled and compacted at the rear of the standard block and the finishing block. Middle layer forming step (S4); After placing the standard blocks on the upper middle, left and right consecutively combine the finishing blocks at both ends to form a lower end, and one end of the standard block is placed on the same vertical line as the one end of the lower finishing block, and then left and right consecutively arranged. The upper layer forming step of forming an upper end, but tension-fixed in the state that the prestressed steel bar is inserted into the insertion hole on the standard block and the finishing block anchorage, and sequentially filling and compacting rubble and vegetation soil in the rear of the front plate of the standard block and the finishing block ( S5): And it consists of the ecological environment creation step (S6) made by planting plants in the vegetation space provided by the upper, middle and lower layers, After the standard block and the finishing block is laminated in the lower layer, middle layer, and upper layer forming step, the high-performance water reducing agent is grouted in the insertion hole on the upper standard block anchorage, and all the blocks are prevented from leaking out of the soil to the inner side of the fitting part and the drain. Precast ecological environment retaining wall construction method characterized in that the earth and sand leakage prevention material is bonded. delete delete delete

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