KR20080014176A - Environmental affinity reinforcement soil retaining wall using a earth pressure reduction type environmental affinity block, and the construction method of this - Google Patents

Abstract

A construction method of an environment-friendly reinforced earth retaining wall is provided to reduce earth pressure by installing a retaining wall with earth pressure reduction type environment-friendly blocks, and to garden a slope with landscape trees and to prevent the breaking of a cutting slope by cultivating landscape trees through penetrations of earth pressure reduction type environment-friendly blocks. A construction method of an environment-friendly reinforced earth retaining wall using earth pressure reduction type environment-friendly blocks comprises the steps of: installing a standard frame in the slope section planed by banking and cutting on the foundation ground(17) where a reinforced earth retaining wall(70) is to be constructed; forming a foundation by removing soils at the appointed depth of the foundation ground and paving foundation rubble or foundation concrete(13); placing earth pressure reduction type environment-friendly blocks(40) continuously, placing filling mortar in a space formed by making a groove formed on a side plate of the earth pressure reduction type environment-friendly block face with a groove of the adjacent earth pressure reduction type environment-friendly block and installing earth pressure reduction type environment-friendly blocks in the first stage, and placing and tamping inside-filling soils(65) in the earth pressure reduction type environment-friendly block and back-filling rubble or filer materials(61) from the lower part of an incline(46) formed at the tail of an upper plate to the area adjacent to an imaginary active earth pressure fracture surface(30) of earth to reduce earth pressure structurally, and piling up banking materials(60) at the backside of the back-filling rubble or filter materials; installing earth pressure reduction type environment-friendly blocks to lay over a half of a penetration(42) formed on a front plate of the earth pressure reduction type environment-friendly blocks installed in the first stage, locating a projection of a reinforcing bar, projected to the center of an upper plate of the earth pressure reduction type environment-friendly blocks installed in the first stage, in a space formed by making a groove formed on a side plate of the earth pressure reduction type environment-friendly block face with a groove of another earth pressure reduction type environment-friendly block, and placing filling mortar in the space and installing earth pressure reduction type environment-friendly blocks in the second stages, and placing and tamping inside-filling soils in the earth pressure reduction type environment-friendly block and back-filling rubble or filer materials from the lower part of an incline formed at the rear of an upper plate to the area adjacent to an imaginary active earth pressure fracture surface of earth to reduce earth pressure structurally, and piling up banking materials at the backside of the back-filling rubble or filter materials; piling up earth pressure reduction type environment-friendly blocks repeatedly according to the required height of a retaining wall through the above mentioned steps, locating a grid of geogrid(11) to many projections(49) installed at the rear of the upper plate of earth pressure reduction type environment-friendly blocks at one or two-stage intervals or holes of a pressure plate, penetrating the projections the holes of the pressure plate or inserting projections of an insertion plate to the holes for fixing the geogrid, and laying the other side of the geogrid in the banking materials, back-filling rubble or filter materials at the backside of the retaining wall; installing a crown concrete block(64) on the upper part of the earth pressure reduction type environment-friendly block placed on the uppermost part to put over a half of the penetration of the upper plate and piling up banking materials at the backside; and cultivating landscape trees(18) in the penetration formed on the upper part of the earth pressure reduction type environment-friendly block, and arranging the circumference.

Description

{Environmental affinity reinforcement soil retaining wall using a earth pressure reduction type environmental affinity block, and the construction method of this}

1 is a view showing a conventional block-type retaining wall concrete block.

2 is a view showing the construction of a block retaining wall using a conventional concrete block.

Figure 3 is a view showing the earth pressure reduction eco-friendly block of the present invention as a whole.

Figure 4 is a plan view of the earth pressure reducing eco-friendly block of Figure 3 from above.

FIG. 5 shows a cross section A-A of FIG. 4. FIG.

6 shows a section B-B of FIG. 4.

7 shows a section C-C of FIG. 4.

8 shows a cross section D-D of FIG. 4.

9 shows a section E-E of FIG. 4.

Figure 10 (a) (b) is a view showing various embodiments of the coupling state when installing the geogrid on the upper surface of the earth pressure reduction eco-friendly block of the present invention.

Figure 11 is a view showing the construction of a low-reinforced soil retaining wall using the earth pressure reducing eco-friendly block of the present invention.

12 is a view showing the construction of a high reinforcement soil retaining wall using the soil-reducing eco-friendly block of the present invention.

Figure 13 (a) (b) is a view for explaining the earth pressure reduction phenomenon when the first and second stages are constructed using the earth pressure reduction eco-friendly block of the present invention.

<Description of the symbols for the main parts of the drawings>

10; Block retaining wall 11; Geogrid

12; Filled soil 13; Basic rubble or foundation concrete

14; Geogrid valid length 15; Total length of geogrid

16; Length within geogrid crush zone 17; Foundation

       18; Landscape trees 19; Root

20; Concrete block 21; Front

22; Rear part 23; Through-hole

30; Virtual Coarse Seismic Surface of Soil

30-1: Slope surface composed of natural relief angle of soil

31; Angle between main earth pressure fracture plane and horizontal plane

31-1: natural repose angle of soil

32; Block Stacking Slope

40; Earth pressure reducing eco-friendly block 41; Top plate

42; Penetration 43; Front panel

44; Side plates 45; Home

46; Inclined portion 47; hole

48; Reinforcing bars 49; projection part

50; Opening 51; Thread

52; Nut 53; Acupressure plate

54; Projection 55; Insertion Plate

60; Landfill 61; Backfill Rubble or Filter Material

62; Space section 63; Filling mortar

64; Tianjin Concrete Block 65; Stuffed soil

70; Reinforced soil retaining wall

The present invention maintains the block laying slope of the earth pressure reducing eco-friendly block, which is a prefabricated product which is completely opened along the slopes of cuts and fills generated during roads, railroads, and land reclamation, and has penetrations of constant size in the upper part of the front surface. When installing a reinforced soil retaining wall by stacking a plurality of plants, when the landscaping trees are planted in the penetrating portion, the roots of the landscaping trees can be advanced to the lower floor along the opening of the lower part of the earth pressure reducing eco-friendly block, as well as to the rear soil material. It is a method of constructing a reinforced soil retaining wall that can prevent the phenomenon of landscaping of the slope and collapse of the surface of the cut soil because the roots can easily move forward and the tree sticks firmly.

In addition, when stacking the earth pressure reducing eco-friendly block, the special structure of the hollow earth pressure reducing eco-friendly block devised in the present invention is used, and the backfill rubble or filter of the adjacent area of the virtual primary earth pressure destruction surface of the soil is used. As a material, it is easy to drain and uses materials such as crushed stone with a large internal friction angle, and it is filled with general soil at the rear part, and the retaining wall block reduces soil pressure so that the impact of soil earth pressure is hardly generated. Special reinforcement soil retaining wall construction method to ensure stability.

The earth pressure reducing eco-friendly block has a groove having a predetermined size in the front plate and a middle portion, and a side plate having a constant inclined portion at the rear portion thereof is connected at right angles to both sides of the front plate, covering the top of the front plate and the side plate. The upper plate is installed, but a portion having a predetermined size is formed in a portion adjacent to the front plate, a plurality of holes are formed in the center of the upper plate, and the reinforcing bar is inserted and protruded by a nut installed in the hole. The upper plate of the structure has a plurality of protrusions or holes are formed to have a rectangular parallelepiped shape so that the geogrid can be installed, but the lower portion forms a fully open opening, the rear side opposite to the front plate is a wedge shape. .

The earth pressure reducing eco-friendly block may be made of concrete, and may be manufactured using a wooden board, or an iron plate may be used. In the material, various materials may be selectively used, and various materials may be used in addition to the above examples.

An object of the present invention is to construct the earth pressure reduction eco-friendly block on the slope generated during cutting and embankment while maintaining a constant block stacking slope, while filling the earth pressure reduction eco-friendly block in the earth pressure reduction eco-friendly block on the back of the earth pressure reduction eco-friendly block It effectively attenuates the earth pressure of the piled sediment material to build a stable reinforcement earth retaining wall, and planted landscaping trees in the penetration part of a certain area on the front of the earth pressure reducing eco-friendly block, and filled stuffed soil filled in the earth pressure-reducing eco-friendly block. As the planted landscaping tree slides through the open part of the earth pressure reducing eco-friendly block completely open, the root extends through the open part to the soil of the lower layer and the backfill, thereby stabilizing the inclined surface of the aesthetics and reinforcement soil wall according to the landscape. To provide a construction method of eco-friendly reinforced earth retaining wall The.

In the related art, as the concrete block 20 made of concrete, as shown in FIG. 1, the through hole 23 having a predetermined size is formed on the front surface 21 and the rear surface 22, and the block 20 is vertical as shown in FIG. As a block retaining wall 10 which is laminated while the geogrid 11 is connected to the rear part of the block at a predetermined floor and the other end of the geogrid 11 is embedded in the back surface of the block while filling it with the filling soil 12. Block retaining wall (10) to stabilize the earth pressure by the weight of the soil or external force is reinforced by the friction resistance between the concrete block (20) and the geogrid (11) reinforcement and the reinforcement of the backfill soil (12). ) Is a structure that cannot maintain the height of the retaining wall without the reinforcement of the geogrid 11 even when the height of the crest is low. Also, the front surface of the retaining wall is an upright structure. It is a structure that does not have a structure, which is not structurally unstable and not environmentally friendly by using the block 20 to plant a landscape tree.

In other words, in the case of FIG. 2, the tensile force of the soil compaction layer is embedded in the reinforcement such as the geogrid 11, and constrains the earth pressure caused by the soil's own weight or external force by the frictional resistance between the reinforcement and the soil. As the retaining wall 10, which is constructed in the form of a retaining wall 10, the rear part 22 connected to the geogrid 11, which is a reinforcement, among the components of the block retaining wall 10 only prevents soil from flowing down and is caused by the infiltration of rainwater and the loosening of soil accordingly. To prevent local destruction, the mechanical function of earth pressure is not expected.

Therefore, when the geogrid 11, which is a reinforcing material, is not installed, the angle of repose of the soil in the long term, even if it is less than the angle 31 formed with the virtual driving earth pressure fracture surface 30 of the filled soil of the back surface of the block retaining wall 10 ( It is inevitable that the slope will be destroyed by the entire earthwork flowing down until β ≒ φ) is formed, and the front part is sealed and the planting of the landscaping trees and their activities are not possible, thus preventing the environmentally friendly block retaining wall 10. will be.

The present invention has been proposed in order to improve the above problems, the lower part is completely open along the inclined surface of the cut and fill generated during road, railroad and site clean-up, the pre-fabrication is also provided in the upper part of the front of a constant size To reduce the earth pressure by installing a reinforced earth retaining wall by stacking a plurality of products to reduce the earth pressure reduction eco-friendly block while maintaining a constant block slope, and planting the landscaping trees in the penetrating part, the roots of the landscaping tree are the earth pressure reduction eco-friendly block The reinforcement soil wall can prevent the phenomenon of landscaping and cut-off of the slope of the slope by preventing the tree from sticking firmly as the root can easily move forward along the opening of the lower part of the floor. It is a construction method.

In the present invention, the front plate 43 and the groove portion 45 having a predetermined size are formed in the center and the side plate 44 having a constant inclined portion 46 formed at the rear is connected at right angles at both sides of the front plate 43. The upper plate 41 is installed to cover the top of the front plate 43 and the side plate 44, but a through portion 42 having a predetermined size is formed at a portion adjacent to the front plate 43, and the top plate. A plurality of holes 47 are formed in the center of the 41, and the reinforcing bars 48 having a predetermined length are inserted and protruded by the nuts 52 provided in the holes 47. A plurality of protrusions 49 or holes 47 are formed so that the geogrid 11 can be installed, as a structure to have a rectangular parallelepiped shape as a whole, but the lower portion forms a fully open opening 50, the front plate On the opposite side of (43), the earth pressure reducing eco-friendly block 40 is formed into a wedge shape.

Method for constructing the reinforced soil retaining wall 70 by using the earth pressure reduction eco-friendly block 40 made in advance using the various materials;

Installing a slope slope scaffold frame (not shown) in a slope slope section planned by fill and cut on the foundation ground 17 on which the reinforcement soil retaining wall 70 is to be installed;

Removing soil of a predetermined depth on the foundation ground 17 and then pouring foundation rubble or foundation concrete 13 to form a foundation;

The earth pressure reduction eco-friendly block 40 of the earth pressure reduction eco-friendly block 40 provided adjacent to the recess 45 is formed in the side plate 44 of the earth pressure reduction eco-friendly block adjacently mounted on the installed base. Filling mortar 63 is filled and placed in the space 62 formed to face the groove 45 to install the earth pressure reducing eco-friendly block 40 in one step, and the earth pressure reducing eco-friendly block 40 From the lower portion of the inclined portion 46 formed in the rear portion of the soil to the virtual driving earth pressure fracture surface 30 adjacent to the soil, it is easy to drain as a backfilling rubble or filter material 61, as well as materials such as crushed stone having a large internal friction angle. Using the installation and compaction, the slope formed at this time is close to the natural angle of retreat to reduce the earth pressure, and the back soil after filling rubble or filter material (61) compacted by stacking the earthen material (60), the earth pressure reduction bubble The interior of the 40 is in the fill step to fill with soil (65);

The earth pressure reducing eco-friendly block 40 is installed in the first stage, the earth pressure reducing eco-friendly block 40 is installed so as to cover the half range of the through portion 42 formed in the front plate 43, the earth pressure placed in the first stage Another earth pressure reduction type installed adjacently so that the reinforcing bar 48 protruding in the center of the upper plate 41 of the reduced eco-friendly block is located in the groove 45 formed in the side plate 44 of the earth pressure reduction eco-friendly block. Block the protrusions of the reinforcing bars 48 in the space 62 formed so as to face the groove 45 of the eco-friendly block 40, and pile the block while pouring the filling and drain 63 in the space 62 While installing the earth pressure reduction eco-friendly block 40 in two stages by the slope 32, the inside of the earth pressure reduction eco-friendly block 40 is formed in the back of the filling soil 65 and the upper plate 41 inclined From the lower part of the part 46 to the area adjacent to the virtual circumferential earth pressure fracture surface of the soil 30 The step of stacking the backfill rubble or filter material 61 in the laying and compaction, while reducing the earth pressure as in the first stage, backfill rubble or filter member 61 which seongtojae 60, the back surface of the earth and sand after the plain;

Repeated stacking of the earth pressure reducing eco-friendly block 40 as described above, and repeatedly stacking the earth pressure reducing eco-friendly block 40 according to the height of the retaining wall required by the design, but the height of the retaining wall is low and the block stacking slope If (32) is gentle, build a reinforced earth retaining wall (70) of the designed height by stacking the earth pressure reducing eco-friendly block (40) as it is, and if the height of the retaining wall is high and the block stacking slope (32) is urgent, The grid of one end of the geogrid 11 is located in a plurality of protrusions 49 or holes 47 provided at the rear of the upper plate 41 of the earth pressure reducing eco-friendly block 40 across the stage or across the stage. The geogrid 11 allows the hole 47 of the pressure plate 53 to penetrate the protrusion 49, or the protrusion 54 of the insertion plate 55 is inserted into the hole 47 to fix the geogrid 11. The other side of the) fills the back of the retaining wall Step such that embedded in the 60 and backfill rubble or filter material (61);

After the above steps, while installing the top-end concrete block 64 over the half range of the penetrating portion 42 of the upper plate 41 on the top of the earth pressure reduction eco-friendly block 40 disposed at the top end The back of the pile to the earth-filled soil material (60); And

The through portion 42 formed on the front surface of the top plate 41 of the earth pressure reducing eco-friendly block 40 consists of planting the landscaping trees 18 while arranging the surroundings to complete the installation of the reinforced soil retaining wall 70. It is a corporation of environmentally friendly reinforced soil retaining wall 70 using earth pressure reducing eco-friendly block.

The earth pressure reducing eco-friendly block 40 may be made of concrete or wood, and may be manufactured using various materials.

In particular, when the earth pressure reduction eco-friendly block 40 is made of wood to construct the reinforced soil retaining wall 70, the landscaping tree 18 is planted in the through portion 42 of the earth pressure reduction eco-friendly block, and the earth pressure is soaked. As the wood of the reduced eco-friendly block 40 is corroded, the roots 19 of the planted landscape trees 18 are slid into the earth-reduced eco-friendly block 40 and the earth pressure reduced eco-friendly block 40 is corroded. Even if not, the roots 19 of the trees on the inclined surface of the retaining wall are mutually twisted to maintain the slope of the retaining wall naturally by the roots 19 of the planted trees.

Hereinafter, the configuration and operation of the present invention will be described in detail by the accompanying drawings.

3 is a view showing the earth pressure reduction eco-friendly block of the present invention as a whole, Figure 4 is a plan view of Figure 3, Figure 5 is a view showing a cross-section AA of Figure 4, Figure 6 is a view showing a cross-section BB of Figure 4 7 is a view showing a cross-sectional view CC of FIG. 4, FIG. 8 is a view showing a cross-sectional view DD of FIG. 4, and FIG. 9 is a view showing a cross-sectional view EE of FIG. 4, which is constant at the center of the front plate 43. The side plate 44 having a groove portion 45 having a size and a constant inclined portion 46 is formed at the rear portion at right angles at both sides of the front plate 43, and the front plate 43 and the side plate ( The upper plate 41 is provided to cover the upper portion of the 44, but a through portion 42 of a predetermined size is formed in a portion adjacent to the front plate 43, and a plurality of holes 47 in the center of the upper plate 41. Is formed, and the reinforcing bars 48 of a certain length are inserted by the nuts 52 provided in the holes 47. While protruding, the rear upper plate 41 has a plurality of protrusions 49 or holes 47 formed therein so that the geogrid 11 can be installed. Formed opening 50 is formed, the rear side opposite to the front plate 43 is the earth pressure reduction eco-friendly block 40 to be wedge-shaped by the inclined side portion.

The earth pressure reducing eco-friendly block 40 may be made of concrete or wood, and may be manufactured using various materials.

In particular, in the case of constructing the earth pressure reducing eco-friendly block 40 by constructing the reinforced earth retaining wall 70, the landscaping trees 18 are planted in the penetrating portion 42 of the earth pressure reducing eco-friendly block while the trees are slid. Retaining wall even though the roots 19 of the planted landscape trees 18 slid into the earth pressure reducing eco-friendly block 40 as the wood of the earth pressure reducing eco-friendly block 40 is corroded. The roots 19 of the trees on the inclined surface of the plant is a construction method of eco-friendly reinforcement soil retaining wall 70 to maintain the slope of the retaining wall naturally by the roots 19 of the planting landscaping trees 18.

According to the height of the reinforced earth retaining wall (70) by varying the standard of the earth pressure reducing eco-friendly block 40, the height of the retaining wall is 3m ~ 5m or less, if small, it is made small to enable manpower work, the retaining wall In case of high height and large scale, it has to be manufactured in a large sized standard so that it can be mounted with equipment.

The height of the earth pressure reducing eco-friendly block 40 was determined by considering the height of the block in consideration of 20 cm, which is the thickness of the interlayer finishing of the roadbed and backfilling soil, according to the civil engineering specifications of the block. This is to ensure the high quality when constructing the retaining wall by making a compaction thickness that satisfies the standards of civil engineering specifications.

The fact that the inside of the block is completely empty and that the bottom surface of the side plate is inclined by the difference in the length of the upper and lower sides of the side plate, the slope of the backfill of the block surface or the slope of the filter material when the reinforcement soil wall is constructed, makes the slope close to the angle of repose. Naturally maintained so that the coarse earth pressure of the soil generated from the soil piled up on the back of the retaining wall is naturally attenuated, wherein the slope of the inclined portion is 1; 1 to 1; 1.5 was obtained.

The thickness of the rear plate of the top plate 41 and the side plate 44 of the earth pressure reduction eco-friendly block 40 is very large compared to the thickness of the front plate 43 and the side plate 44 and the top plate 41 of the front surface. It was thinned to minimize the area where main earth pressure could be generated by the soil filled on the back of the retaining wall.

In order to protrude and install the reinforcing bars 48 in the plurality of holes 47 formed in the center of the upper plate 41 of the earth pressure reducing eco-friendly block 40, the nut 52 is embedded in the holes 47 and the reinforcing bars 48 are installed. The thread 51 is formed at the end of the head) to install the threaded portion of the reinforcing bar into the nut 52 embedded in the hole 47 so that the reinforcing bar 48 protrudes.

The emptying of the inside of the block is intended to facilitate transport and installation when the retaining wall is constructed using the block in addition to the earth pressure reduction effect.

Figure 10 (a) (b) is a view showing a variety of embodiments of the combined state when installing the geogrid on the upper surface of the earth pressure reducing eco-friendly block of the present invention, by repeatedly stacking the height of the retaining wall required in the design Accordingly, the earth pressure reducing eco-friendly block 40 is repeatedly stacked, but when the height of the retaining wall is low and the block stacking slope 32 is moderate, the earth pressure reducing eco-friendly block 40 is laminated as it is. (70), the height of the retaining wall and the block stacking slope (32) is urgently installed at the rear of the upper plate 41 of the earth pressure reduction eco-friendly block (40) across the first stage or the second stage. The lattice network at one end of the geogrid 11 is positioned in the plurality of protrusions 49 (a) or the holes 47 of FIG. (b), and the holes 47 of the pressure plate 53 are provided in the protrusions 49. Or penetrate the hole 47 The projection 54 of 55 is inserted so that the geogrid 11 is fixed so that the other side of the geogrid 11 is embedded in the fill material 60 and backfill rubble or filter material 61 on the back surface of the retaining wall.

11 is a view showing the construction of the reinforced earth retaining wall when the height is low by using the earth pressure reducing eco-friendly block of the present invention and when the block stacking slope 32 is gentle, the foundation to install the reinforced earth retaining wall 70 Installing a slope slope slope frame (not shown) on the slope slope section planned by the fill and cut on the ground (17);

Removing soil of a predetermined depth in the foundation ground (17) and then pouring foundation rubble or foundation concrete (13) to form a foundation;

The earth pressure reduction eco-friendly block 40 of the earth pressure reduction eco-friendly block 40 provided adjacent to the recess 45 is formed in the side plate 44 of the earth pressure reduction eco-friendly block adjacently mounted on the installed base. Filling mortar 63 is filled and placed in the space 62 formed to face the groove 45 to install the earth pressure reducing eco-friendly block 40 in one stage, and inside the earth pressure reducing eco-friendly block. Installation and compaction with backfill rubble or filter material 61 from the lower portion of the inclined portion 46 formed at the rear of the stuffed soil 65 and the upper plate 41 to the adjacent area of the virtual driven earth pressure fracture surface 30 of the soil. While structurally reducing the earth pressure, the back filling and the back of the filter material (61) after the step of stacking the general earthen land fill material (60);

The earth pressure reduction eco-friendly block 40 is installed in the first stage, the earth pressure reduction eco-friendly block 40 is installed so that about half of the through portion 42 formed in the front plate 43, the earth pressure placed in the first stage Reinforcing bar 48 protruding in the center of the upper plate 41 of the reduced eco-friendly block is located in the groove 45 formed in the side plate 44 of the earth pressure reduction eco-friendly block 40 is installed adjacent to another The protrusion of the reinforcing bar 48 is positioned in the space 62 formed to face the groove 45 of the earth pressure reducing eco-friendly block 40, and the filling mortar 63 is placed in the space 62. While installing the earth pressure reduction eco-friendly block 40 in two stages by the block stacking slope 32, the inside of the earth pressure reduction eco-friendly block 40 inside the stuffed soil 65 and the upper plate 41 From the lower portion of the inclined portion 46 formed in the adjacent soil earth pressure destruction surface 30 of the virtual soil In the step of stacking a backfill rubble or filter material (61) laying and compaction and while reducing the earth pressure in structure, backfill, and filter material 61 of seongtojae 60. Since the back surface of the earth and sand in the plain;

Constructing a reinforced earth retaining wall 70 having a designed height by repeatedly stacking the earth pressure reducing eco-friendly block 40 according to the height of the retaining wall required by the design by repeatedly stacking the blocks as described above;

After going through the above steps, while installing the top-end concrete block 640 on the top of the earth pressure reduction eco-friendly block 40 disposed at the uppermost end of the through part 42 of the upper plate 41, Filling in the backing land (60) which is general earth and sand;

The through portion 42 formed on the front surface of the top plate 41 of the earth pressure reducing eco-friendly block 40 consists of planting the landscaping trees 18 while arranging the surroundings to complete the installation of the reinforced soil retaining wall 70. It is the construction method of eco-friendly reinforced earth retaining wall 70 using earth pressure reducing eco-friendly block.

12 is a view showing the construction of reinforcement soil wall when the height is high and the stacking slope 32 is urgent, using the soil-reducing eco-friendly block of the present invention, the foundation ground to install the reinforcement soil wall 70 Installing slope slope standard frame (not shown) on the slope slope section planned by the fill and cut on the (17);

Removing soil of a predetermined depth on the foundation ground 17 and then pouring foundation rubble or foundation concrete 13 to form a foundation;

The earth pressure reduction eco-friendly block 40 of the earth pressure reduction eco-friendly block 40 is installed adjacent to the groove base 45 formed adjacent to the side plate 44 of the earth pressure reduction eco-friendly block while adjacently mounted on the installed base. Filling mortar 63 is filled and placed in the space 62 formed to face the groove 45 to install the earth pressure reducing eco-friendly block 40 in one stage, and inside the earth pressure reducing eco-friendly block. From the lower portion of the inclined portion 46 formed in the rear of the stuffed soil 65 and the upper plate 41 to the adjoining region of the virtual driven earth pressure fracture surface 30 of the soil, it is filled with backfill rubble or filter material 61 While reducing the earth pressure, the backfill and the back after the filter material 61, the step of stacking the earth soil material (60);

The earth pressure reduction eco-friendly block 40 is installed in the first stage, the earth pressure reduction eco-friendly block 40 is installed so as to cover the half range of the through portion 42 formed in the front portion 43, the earth pressure placed in the first stage Another earth pressure reduction type installed adjacently so that the reinforcing bar 48 protruding in the center of the upper plate 41 of the reduced eco-friendly block is located in the groove 45 formed in the side plate 44 of the earth pressure reduction eco-friendly block. Block the protrusions of the reinforcing bars 48 in the space 62 formed to face the groove 45 of the eco-friendly block 40, and stack the filling mortar 63 in the space 62. While installing the earth pressure reduction eco-friendly block 40 in two stages by the slope 32, the inside of the earth pressure reduction eco-friendly block 40 is formed in the rear of the stuffing soil 60 and the upper plate 41 From the lower portion of the portion 46 to the virtual driving soil fracture surface 30 of the soil adjacent to Filling with backfill rubble or filter material 61 to structurally reduce earth pressure, and stacking the backfill and filter material 61 on the back of the earth and sand fillet material 60;

Repeated stacking as described above, repeatedly stacking the earth pressure reduction eco-friendly block 40 according to the height of the retaining wall required in the design, but if the height of the retaining wall is high, the earth pressure reduction across the first stage or across the second stage The grid 49 at one end of the geogrid 11 is positioned in a plurality of protrusions 49 or holes 47 provided at the rear of the top plate 41 of the eco-friendly block 40, and the pressure plate 53 is provided at the protrusion 49. The other side of the geogrid 11 is inserted into the back surface of the retaining wall while the hole 47 of the geogrid 11 is inserted or the projection 54 of the insertion plate 55 is inserted into the hole 47 to fix the geogrid 11. 60 and embedded in backfill rubble or filter material 61;

After the above steps, while installing the top-end concrete block 64 over the half range of the penetrating portion 42 of the upper plate 41 on the top of the earth pressure reduction eco-friendly block 40 disposed at the top end The back of the pile to the earth-filled soil material (60); And

The through portion 42 formed on the front surface of the top plate 41 of the earth pressure reducing eco-friendly block 40 consists of planting the landscaping trees 18 while arranging the surroundings to complete the installation of the reinforced soil retaining wall 70. It is the construction method of eco-friendly reinforced earth retaining wall 70 using earth pressure reducing eco-friendly block.

The block stacking slope 32 is set to 1: 0.4 as the maximum inclination, the backfill rubble or filter material (61) and the soil of the soil soil of the earth (60) sedimentary soil (60) and the horizontal plane is formed Slower than the inclination angle θ = 45 ° + φ / 2 which is the angle 31. Even if it is urgent, so that the upper surface of the virtual crushing earth pressure destruction surface 30 of the soil is located in the reinforcing soil wall 70, the structure of the reinforced earth retaining wall 70 has a stability against the back soil pressure.

The height of the boundary of the height of the reinforced earth retaining wall (70) with or without the geogrid 11 is about 5m, which is the upper length of the upper plate of the earth pressure reducing eco-friendly block 40 to 60 ~ 70cm, the internal friction angle When the general fine dense soil is θ = 33 °, the angle 31 formed by the virtual driven earth pressure fracture surface 30 of the soil with the horizontal plane is 61.5 °, and the inclination corresponds to 1: 0.54. Even if (32) is as high as 1: 0.4, the upper part of the virtual crushing earth pressure fracture surface 30 of the soil is located inside the block or backfill rubble because of the high stiffness of the block and the high internal friction angle of the backfill rubble. It would be stable even without the geogrid (11).

In addition, when the block stacking slope 32 is gentler than the angle 31 formed by the virtual coarse earth breaking surface 30 of the soil and the horizontal plane, it is closer to the natural repose angle (β ≒ θ) (31-1) of the soil. In this case, even when the height of the reinforcing soil wall 70 exceeds 5m, it may be possible without the geogrid 11. However, when the height of the reinforcing soil wall 70 exceeds 5m and the block stacking slope 32 is urgent, the geogrid 11 Reinforced soil retaining wall with) to have stability.

Figure 13 (a) (b) is a view for explaining the earth pressure reduction phenomenon when constructed in one step and two or more steps using the earth pressure reduction type eco-friendly block of the present invention, the reinforced reinforcement retaining wall 70 is the back of the retaining wall The inclination angle θ = 45 ° + φ / 2 is the angle 31 of the virtual driving earth pressure fracture surface 30 of the soil due to the coarse earth pressure of the fill material, and the repose angle (β) (31-1) of the soil is θ. Much smaller than β ≒ φ.

Therefore, the sloped surface formed by the backfill rubble or filter material 61 filled in the main earth pressure destruction surface of the soil at the back of the block is naturally formed within the angle of repose of the general soil, thereby minimizing the main earth pressure generated by the backfill. To improve the stability of the reinforced soil retaining wall (70).

In addition, after piled up on the back of the earth pressure reduction eco-friendly block 40 installed in one stage as shown in (a), earth pressure reduction eco-friendly block of the same size as the first stage stacking height on the slope of the slope formed by the angle of repose. When stacking the 40, the earth pressure reducing eco-friendly block 40 is empty inside, and the slope of the side plate 44 of the block is 1: 1 to 1: 1.5 by the natural angle of repose of the soil (31-1) Since it is manufactured to be close to, the main earth pressure due to backfill and soiling is hardly affected.

After stacking the two-stage earth pressure reducing eco-friendly block 40 as shown in FIG. (B), stacking and compacting the two-stage earth, and putting the stuffed soil 65 into the earth pressure-reducing eco-friendly block 40, the earth pressure Reduced eco-friendly block 40 is empty inside, so that the inclination of the inclined portion 46 of the side plate 44 within the range of 1: 1 to 1: 1.5 so as to be close to the natural angle of repose (31-1) of the soil. Since the earth pressure reduction eco-friendly block (40) is hardly applied to the main earth pressure due to the two-stage stacking, and installed in the two-stage earth pressure reduction eco-friendly block (40), stuffed soil (65) and two stages The earth and sand in the penetrating portion 42 of the earth pressure reducing eco-friendly block 40 does not act as a horizontal earth pressure but acts as a vertical force on the earth pressure reducing eco-friendly block 40 installed at the first stage only by its own weight. This can be increased.

Influence of earth pressure by piled up soil 60 and backfill rubble and filter material 61 stacked on the back of the earth pressure reducing eco-friendly block 40 and the third stage after the process of FIGS. As shown in Figures (a) and (b) above, at a low height of the reinforcement soil wall, it is possible to stack a stable earth pressure reduction eco-friendly block 40 without a separate geogrid 11 as a reinforcement material, When it is stacked high at a close angle, it is connected to the earth pressure reducing eco-friendly block 40 and installed to support the increased dynamic earth pressure by the reinforcement which is the geogrid 11 embedded in the backfill soil and backfill rubble or filter material 61. do.

At this time, the planting of the landscaping tree 18 is made in the penetrating portion at each end, and the root of the landscaping tree 18 is opened through the open part 50 completely opened at the lower part of the earth pressure reducing eco-friendly block 40. Go down and advance into the earth and sand of the bottom wall and the rear part of the retaining wall and fully integrate with the earth pressure reducing eco-friendly block 40 of the retaining wall to double the stability of the reinforced earth retaining wall 70 while being environmentally friendly reinforcing earth retaining wall. Installation of 70 becomes possible.

The present invention maintains a constant block stacking slope of the earth pressure reducing eco-friendly block, which is a prefabricated product, with the lower part completely open along the slopes of cuts and fills generated during roads, railroads, and land reclamation, and with a penetration part of a constant size at the upper part of the front surface. While laying a plurality of reinforcement soil retaining wall to reduce the earth pressure generated by the backfill material and the fill soil piled up on the back of the earth pressure reducing eco-friendly block to increase the stability of the retaining wall, when planting the landscaping trees in the penetration part The roots of landscaping trees can be advanced to the lower floor along the opening of the lower part of the earth pressure reducing eco-friendly block, and the roots can be easily advanced to the filling material and the soil material at the back, so that the trees and retaining wall blocks are integrated to enhance stability. Environment friendly to the surrounding environment while enabling the installation of reinforced retaining wall It is a reinforcement soil retaining wall construction method that can install a typical retaining wall.

Claims (11)

One step of earth pressure by filling and filling filling mortar in the space formed by placing foundation rubble or foundation concrete at a certain depth on the foundation ground where reinforcing soil wall is to be installed and earth pressure reducing eco-friendly block on the foundation. The reduction type eco-friendly block is installed, and the reinforcing bars protruding in the center of the upper plate of the installed single-stage earth pressure reducing eco-friendly block are formed by grooves formed in the side plates of the earth pressure-reducing eco-friendly blocks which are installed successively on the first stage. While placing the front part of another block in the upper half of the first-stage block penetrating part while being located in the space part, the filling and discharging of the filling part in the space part is repeated to be laminated at a predetermined height of the reinforcement soil wall. If the height of the retaining wall is low or the block stacking slope is moderate, If only the environmental blocks are stacked, and the retaining wall is high and the block stacking slope is urgent, the geogrid is fixed to the rear of the top plate of the earth pressure-reducing eco-friendly block across the first stage or the second stage, while the other side of the geogrid is on the back of the retaining wall. The retaining wall is installed by the block stacking slope while being embedded in the fill material and the back fill material, and the inside of the installed earth pressure reducing eco-friendly block is filled with stuffed soil, and the back filling material and the fill material on the back of the earth pressure reducing eco-friendly block. Filled with, and the top of the earth pressure reduction eco-friendly block installed on the top of the retaining wall is installed a top-end concrete block, the ground is formed in the through portion formed on the front of the top plate of the earth pressure reduction eco-friendly block on the back Eco-friendly reinforcement earth retaining wall using earth pressure reduction eco-friendly block characterized by planting trees.  The method of claim 1, The earth pressure reducing eco-friendly block is formed with a groove having a predetermined size at the front plate and the middle portion, and a side plate having a constant inclined portion is installed at right angles at both sides of the front plate, and the upper portion of the front plate and the side plate is formed. The cover is provided with a top plate, a portion of the upper portion adjacent to the front plate is formed with a certain size through-hole, a plurality of holes are formed in the center of the top plate, the reinforcing bar is inserted into the hole to protrude, A plurality of protrusions or holes are formed to have the shape of an overall cuboid so that the geogrid can be installed, the interior is completely empty, the bottom forms an open opening, and the top plate and the rear plate by the inclined side of the side plate. The back side of the side plate is wedge-shaped, which is an eco-friendly beam using earth pressure reducing eco-friendly block. River retaining wall. The method of claim 1 The height of the reinforced earth retaining wall without or without geogrid installed on the earth pressure reducing eco-friendly block is based on 5m, but more than 5m and is more urgent than the virtual crushing earth pressure surface of the soil, the block stacking slope of the present invention will be close to 1: 0.4 range. In this case, earth-reinforced earth retaining walls using earth pressure reducing eco-friendly blocks, which are characterized by installing geogrids. The method of claim 2 In order to protrude and install reinforcing bars in a plurality of holes formed in the center of the upper plate of the earth pressure reducing eco-friendly block, a nut is inserted into the hole and a thread is formed at the end of the reinforcing bar so that the threaded portion of the reinforcing bar is inserted into the nut embedded in the hole. Eco-friendly reinforced earth retaining wall using earth pressure reducing concrete block which is characterized in that the reinforcing bar is installed by insert tightening. The method of claim 2, The height of the earth pressure reducing eco-friendly block was set to 20 cm, which is the range of compaction thickness in the civil engineering specifications, and the inside of the block was completely empty and the slope of the side slope of the side plate was 1: 1 to 1; 1.5 to maintain the stability of the retaining wall during reinforcement earth retaining wall construction and the slope of the backfill rubble or filter material on the back of the block to maintain the inclination close to the angle of repose. Earth-reinforced earth retaining wall using earth pressure reducing concrete blocks characterized by maintaining stability. The method of claim 1, The geogrid is fixed to the rear of the top plate of the earth pressure reducing eco-friendly block so that the lattice network at one end of the geogrid is located in the plurality of protrusions formed at the rear of the top plate, and the hole of the pressure plate is penetrated to the protrusion. Eco-friendly reinforced earth retaining wall using earth pressure reducing eco-friendly block characterized in that the geogrid is fixed to the upper plate by the pressure plate. The method of claim 1, The geogrid is fixed to the rear of the top plate of the earth pressure reducing eco-friendly block so that the grid of one end of the geogrid is positioned in a plurality of holes formed at the rear of the top plate, and the projection of the insertion plate is inserted into the geogrid. Earth-reinforced earth retaining wall using earth pressure reducing eco-friendly block characterized in that is fixed to the top plate by the insertion plate. The method of claim 1, Filling material that fills the back of the earth pressure reducing eco-friendly block is a backfill rubble or filter material that fills from the lower portion of the inclined portion formed at the rear of the upper plate to the virtual driving earth pressure destruction surface adjacent area of the soil, and is easily drained. Eco-friendly reinforced earth retaining wall using earth pressure reducing eco-friendly block, which is characterized by using materials such as high friction angles, such as crushed stone, and filling with backfill rubble or filter material on the back. The method of claim 2, Emptying the inside of the earth pressure reducing eco-friendly block and setting the inclined portion by varying the length of the upper and lower sides of the side plate to make the angle of inclination close to the angle of repose of the backfill material, and the thickness of the side plate and the top plate of the earth pressure reducing eco-friendly block It is installed very thinly compared to the front surface, so that the slope of the backfill rubble or filter material filled on the back of earth pressure-reducing eco-friendly block can be naturally maintained to be close to the angle of repose, and the factors of earth pressure are minimized by minimizing the main earth pressure. Eco-friendly reinforced earth retaining wall using earth pressure reducing eco-friendly block characterized by improving the stability of reinforced earth retaining wall by reducing the main earth pressure. Installing a slope slope scaffold frame on a slope slope section formed by fill and cut on a foundation ground on which a reinforcing soil retaining wall is to be installed; Removing soil of a predetermined depth on the foundation ground and then pouring foundation rubble or foundation concrete 13 to form a foundation; The earth pressure reduction eco-friendly block 40 of the earth pressure reduction eco-friendly block 40 provided adjacent to the recess 45 is formed in the side plate 44 of the earth pressure reduction eco-friendly block adjacently mounted on the installed base. Filling mortar 63 is filled and placed in the space 62 formed to face the groove 45 to install the earth pressure reducing eco-friendly block 40 in one stage, and inside the earth pressure reducing eco-friendly block. Fill the soil from the lower part of the inclined portion formed on the back of the upper plate to the virtual driving earth pressure fracture surface of the soil with backfill rubble or filter material and use the earth pressure reduction effect through the special structure of the block. Filling the back of the ash with a general soil material; The earth pressure reduction eco-friendly block 40 is installed so as to cover the half range of the through portion 42 formed in the front portion of the earth pressure reduction eco-friendly block 40 installed in the first stage, and the earth pressure reduction eco-friendly block placed in the first stage. The reinforcing bar protruding in the center of the upper plate of the block is located in the groove formed in the side plate of the earth pressure reducing eco-friendly block so as to face the groove of another earth pressure reducing eco-friendly block adjacently installed. The earth pressure reducing eco-friendly block is installed in two stages according to the block stacking inclination while placing the protrusions in the space, and the inside of the earth pressure reducing eco-friendly block is placed inside the rear part of the stuffed soil and the upper plate. The special sphere of the block is filled with the backfill rubble or filter material from the lower part of the formed slope to the adjacent area of the virtual crushing surface of soil. Using the earth pressure reduction effect through the tank, and filling the back of the backfill rubble or the filter material with the earth and sand; Constructing a reinforced earth retaining wall having a designed height by repeatedly stacking earth pressure reducing eco-friendly blocks according to the height of the retaining wall required by the design by repeatedly stacking the blocks as described above; After the steps as described above, the step of laying the general soil on the back while the top of the earth pressure reducing eco-friendly ecological block disposed on the upper end of the top-end concrete block so as to cover a range of 1/2 of the penetrating portion of the upper plate; And The through-portion formed on the front surface of the top plate of the earth pressure reducing eco-friendly block is an environment-friendly reinforcement earth retaining wall using the earth pressure reducing eco-friendly block characterized in that it comprises the step of finishing the installation of reinforcing earth retaining wall while planting the surrounding trees. Construction method. Installing a slope slope scaffold frame on a slope slope section formed by fill and cut on a foundation ground on which a reinforcing soil retaining wall is to be installed; Removing soil of a predetermined depth on the foundation ground and then pouring foundation rubble or foundation concrete 13 to form a foundation; The earth pressure reduction eco-friendly block 40 of the earth pressure reduction eco-friendly block 40 provided adjacent to the recess 45 is formed in the side plate 44 of the earth pressure reduction eco-friendly block adjacently mounted on the installed base. Filling mortar 63 is filled and placed in the space 62 formed to face the groove 45 to install the earth pressure reducing eco-friendly block 40 in one stage, and inside the earth pressure reducing eco-friendly block. Fill the soil from the lower part of the inclined portion formed on the back of the upper plate to the virtual driving earth pressure fracture surface adjacent to the soil by using backfill rubble or filter material to reduce the earth pressure through the special structure of the block. Filling the back of the ash with a general soil material; The earth pressure reduction eco-friendly block 40 is installed so as to cover the half range of the through portion 42 formed in the front portion of the earth pressure reduction eco-friendly block 40 installed in the first stage, and the earth pressure reduction eco-friendly block placed in the first stage. The reinforcing bar protruding in the center of the upper plate of the block is located in the groove formed in the side plate of the earth pressure reducing eco-friendly block so as to face the groove of another earth pressure reducing eco-friendly block adjacently installed. The projecting part is positioned, and the earth pressure reducing eco-friendly block is installed in two stages by the block stacking inclination while placing the filling water in the space part. The special sphere of the block is filled with the backfill rubble or filter material from the lower part of the formed inclined part to the adjacent virtual earth pressure fracture surface of soil. Using the earth pressure reduction via effects, backfill jeopseok or after the filter material a rear surface comprising: filling into the generic soil seongtojae; Repeated stacking as described above, stacking earth pressure reducing eco-friendly blocks repeatedly according to the height of the retaining wall required in the design, but if the retaining wall is high and the block stacking slope is urgent, The grid of one side end of the geogrid is positioned in a plurality of protrusions or holes provided at the rear of the top plate of the earth pressure reducing eco-friendly block, and the hole of the pressure plate is penetrated through the protrusion or the projection of the insertion plate is inserted into the geogrid. Allowing the other side of the geogrid to be embedded in the fill material and backfill rubble or filter material on the back surface of the retaining wall while the fixing is performed; After the steps as described above, the step of laying the general soil on the back while the top of the earth pressure reducing eco-friendly ecological block disposed on the upper end of the top-end concrete block so as to cover a range of 1/2 of the penetrating portion of the upper plate; And The through-portion formed on the front surface of the top plate of the earth pressure reducing eco-friendly block is an environment-friendly reinforcement earth retaining wall using the earth pressure reducing eco-friendly block characterized in that it comprises the step of finishing the installation of reinforcing earth retaining wall while planting the surrounding trees. Construction method.

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