KR101203289B1 - Reinforced retaining wall with curb element and its construction method - Google Patents

Abstract

PURPOSE: A reinforced earth retaining wall with a curb element and a construction method thereof are provided to remarkably improve safety by reducing earth pressure applied to a block wall and controlling horizontal displacement. CONSTITUTION: A reinforced earth retaining wall(100) with a curb element comprises block bodies(110), horizontal control elements, drain boards, back filling materials, and geotextiles(180). The block bodies are piled up in multi layers. The horizontal control elements form the retaining wall by piling up curb elements(140) on the rear surfaces of the block bodies. The drain boards are formed by spreading rubble(162) on the rear surfaces of the horizontal control elements. The back filling materials are formed by spreading earth(172) on the rear surfaces of the drain boards. The geotextiles are arranged between the curb elements and the rubbles of the drain boards and between the rubbles and the earth of the back filling materials to reinforce the ground. [Reference numerals] (AA) Horizontal earth pressure

Description

Reinforced retaining wall with curb element and its construction method

The present invention relates to a block-type reinforced soil retaining wall using geosynthetic fibers, such as geogrid, and a construction method thereof, and more particularly, to a trapezoidal curve made of cement-mixed soil in which a small amount of cement is mixed with soil generated in the field on the back surface of the block wall. Curved elements can be cast in layers to form walls of transverse restraining elements, greatly reducing earth pressure acting on the block walls, and greatly increasing the stability of the retaining walls by suppressing lateral displacement of the retaining walls. It relates to a reinforced earth retaining wall having an element and a construction method thereof.

In general, reinforcement soil retaining wall refers to a structure in which a vertical wall is formed by installing metal or geotextile reinforcement material between fill soils to increase the stability of the fill body.

As shown in FIG. 1, the conventional reinforcement soil retaining wall 1 is largely composed of a front block wall 10, a reinforcement 20 at its rear side, and a backfilled soil 30. ) And the reinforcing material 20, etc. placed in the interior of the backfilling soil (30) is integrated to resist external force or earth pressure.

This modern reinforcement retaining wall (1) can be thought of as being started in the Terre Armee method developed by Henri Vidal of France in the early 1960s.

In Korea, panel reinforcement retaining walls using galvanized steel as a reinforcement were first applied in 1980, but they were not activated due to lack of galvanization technology, selection of backfilled soil, and construction management.

Later, in 1986, a panel-reinforced earth retaining wall using a banded geotextile reinforcement was introduced, and in 1994, a block-type reinforcement earth retaining wall using high-strength geogrids was introduced. Society, 2006).

Such a conventional reinforced earth retaining wall (1) is actively used as an alternative structure of the concrete retaining wall, but the recognition and technology level for the reinforced earth retaining wall (1) is still not high, so many problems appear in many sites.

In particular, recently, due to the rapid increase in specialized reinforcement soil retaining companies and the consequent technical and economic competition between the companies, problems with unvalidated reinforcement soil retaining wall design methods and applications and the use of low-cost reinforcement materials are being derived.

The typical damage type of the conventional reinforcement soil retaining wall (1) is the collapse of the entire reinforcement soil retaining wall, which is insufficient in the stability of the overall activity in the design of the reinforced soil retaining wall, insufficient drainage facilities and insufficient foundation support This may be due to the use of fine-grained backfill soil and poor compaction.

In addition, there is a settlement of the front block wall 10 of the existing reinforcement soil retaining wall (1), which is most often the case that the support capacity is insufficient due to poor compaction of the ground soil under the reinforced soil retaining wall and poor treatment of the foundation ground.

In addition, it may cause cracking and settlement of the front block wall (10), which is the lack of compressive strength and poor connection state of the front block wall (10), causing excessive tensile stress in the curved surface of the wall and uneven settlement of the foundation ground, etc. This is the cause.

On the other hand, unlike the conventional reinforcement soil retaining wall (1), a technology that applies a RC (reinforced concrete) retaining wall instead of the front block wall 10 is proposed.

The conventional RC retaining wall method is excellent in stability by the integration of the reinforced earth body and the concrete front wall. In particular, it can accommodate the vertical and horizontal deformation of foundation soil and backfill soils, and the front concrete walls can be used for various purposes.

In addition, the reinforcement that is constructed with the concrete wall supports the earth pressure, so it is excellent in stability, and the moment and shear force acting on the bottom of the retaining wall wall are formed so small that the pile foundation is unnecessary, and there is little possibility of local activity and pull-out. In addition, it can be used for the application of the water department and the shift. In addition, it does not cause cracking and sinking of the front block wall 10 of the reinforcement soil retaining wall 1, so that the stability is very high after construction.

However, the conventional RC retaining wall construction method has a high construction cost, and there is a problem in that a large amount of construction air is required for constructing the concrete retaining wall.

An object of the present invention is to solve the conventional problems as described above, with respect to the block-type reinforced earth retaining wall weak to the lateral displacement, by acting as a structure (reinforced concrete) retaining wall can greatly increase the stability of the retaining wall In addition, the present invention provides a reinforced soil retaining wall having a curved element and a construction method thereof, which can greatly improve the stability of the loading phenomenon of the reinforced soil retaining wall and the collapse or settlement of the front block wall.

In addition, another object of the present invention, by using the on-site soil on the back of the block wall construction of the wall of the transverse restraint element formed of the curved element is not only inexpensive, but also does not require a long curing period can be shortened working air The present invention provides a reinforced soil retaining wall having a curved element and a construction method thereof.

In order to achieve the above object, the present invention is a block type reinforced earth retaining wall using a geotextile as a reinforcing material, the block wall laminated in multiple layers on the front; A transverse suppression element on which a plurality of curve elements are stacked on a rear surface of the block wall to form a wall; A drain formed by laying down a crushed stone layer on the back of each curved element of said transverse restraining element; A backfill material formed by laying general soil on the back of each crushed stone layer of the drainage material; It provides a reinforced soil retaining wall with a curved element comprising; and the front end fixed by using the curvature of each layer, the geotextiles stacked in multiple layers for each layer.

In addition, the present invention preferably the curve element of the transverse restraint element is made of cement mixed soil constructed using field soil, the front face is interviewed in accordance with the rear surface of the block wall, upper and lower surfaces It is made of a flat surface, the rear surface is formed of a slope of the upper width is narrow, the lower width is formed in a trapezoidal cross-section as a whole to provide a reinforced soil retaining wall having a structurally stable curve element.

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In the present invention, preferably, the curved elements are recessed with a key groove formed on the upper surface of the curved element on the lower side, and key projections corresponding to the key grooves are formed on the lower surface of the curved element on the upper side. Bonding provides a reinforced soil retaining wall with curve elements that suppress lateral displacement between the upper and lower layers.

And the present invention preferably provides a reinforcement retaining wall having a curved element each formed at a height corresponding to each layer of the block wall.

In addition, the present invention is preferably the geo-textile is any one of HDPE integrated geogrid, PET bonded geogrid, or PP integrated geogrid, when the upper and lower stacking of the curved element of each layer, the front end of the top of the curve element, Provided is a reinforced earth retaining wall having a curved element clamped between the key groove and the key protrusion formed on the lower surface.

In order to achieve the above object, the present invention, in the construction method of the block-type reinforced earth retaining wall using the geosynthetic fiber as a reinforcing material, constructing the block wall on the front, and embedding the geotextile along the back and bottom of the block wall step; Placing a curvilinear element using cement mixed soil on the geotextiles to form a transverse suppression element; Constructing a backfill material by laying wastewater consisting of crushed stone at the back of the curve element and general earth and sand in the rear part of the drainage material; And building an upper side block wall on the block wall, installing a geosynthetic fiber on the rear surface of the upper side block wall, the transverse restraining element, the drainage material and the backfill material, and then shearing the geotextile fiber up and down. And narrowing the upper and lower surfaces of the curved elements stacked on the curved elements, and repeating the above steps and forming a block wall stacked in a multi-layer on the front surface, and a transverse suppression element on the rear surface of the block wall. The drainage material and the backfill material are formed in turn, and each layer of the geotextile provides a method of constructing a reinforced soil retaining wall having a curved element laminated in multiple layers with its front end fixed by key coupling by a curved element.

And the present invention is preferably the step of placing a curb element using cement mixed soil on the geosynthetic fiber to form a transverse restraint element is mixed with the site soil to the cement and the front face is in line with the rear of the block wall interview ( And the upper and lower surfaces are planar, and the rear surface is formed with a slope of the upper width and the wide width of the lower width, so that the reinforcement soil retaining wall construction method has a curved element that constructs a curved element with a trapezoidal cross section. to provide.

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And the present invention is preferably the step of placing the curb element using cement mixed soil on the geosynthetic fiber to form a transverse restraint element to form a recessed key groove on the upper surface of the curvature of the lower side, The lower surface of the curved element is convexly formed to form a key projection corresponding to the key grooves to be coupled to each other to prevent lateral displacement between the upper and lower layers, the curved element corresponding to each layer of the block wall Provided is a method of constructing a reinforced soil retaining wall having curved elements each formed at a height.

In addition, the present invention is preferably the step of fixing the geosynthetic fiber by the curve element is any one of HDPE integral geogrid, PET bonded geogrid, PP integral geogrid as geotextile, each layer of the curve element Provided is a method for constructing a reinforced earth retaining wall having a curved element in which the front end is squeezed and fixed between the key grooves and the key protrusions formed on the upper and lower surfaces of the curved element.

According to the reinforced soil retaining wall having a curved element according to the present invention and a construction method thereof, the existing reinforced concrete (RC) retaining wall is formed by constructing a wall by constructing a curved element of a layered layer of cement mixed soil as a transverse restraining element on the back of the block wall. It can act as a structure, and thus can ensure a large stability of the retaining soil retaining wall, and the excellent effect that can significantly improve the stability of the reinforcement soil retaining wall and the front wall collapse.

And according to the reinforced earth retaining wall having a curved element and the construction method according to the present invention, by constructing the curved element wall using the site soil on the back of the block wall, it is inexpensive and does not require a curing period can shorten the working air That can achieve excellent effect.

In addition, according to the reinforcement soil retaining wall having a curved element according to the present invention and the construction method, the sliding phenomenon between the upper and lower layers by key coupling between the upper and lower layers of the newly added curve element to the back of the block wall of the existing reinforced soil retaining wall By preventing the lateral displacement more effectively, the geosynthetic fiber is firmly fixed by the key coupling parts stacked in the upper and lower layers, thereby obtaining an excellent effect of constructing a more stable reinforced soil retaining wall.

1 is a partial cutaway perspective view showing a reinforced earth retaining wall according to the prior art.
Figure 2 is a side cross-sectional view showing a reinforced soil retaining wall with a curved element according to the present invention.
Figure 3 is a detailed view showing a front block wall provided in the reinforced soil retaining wall having a curved element according to the present invention.
4 is a detailed view illustrating a structure in which key grooves are formed on an upper surface of a curved element of a lower layer and key protrusions are formed on a lower surface of a curved element of an upper layer in a reinforced earth retaining wall having a curved element according to the present invention. An exploded view of the assembly.
5A to 5C are explanatory views showing geogrid types of geotextiles provided in the reinforcing soil retaining wall having a curved element according to the present invention.
6a to 6d are explanatory views sequentially illustrating a process of sequentially constructing a block wall, a curved element, a drainage material, a backfill material and a geotextile in the method of constructing a reinforced earth retaining wall having a curved element according to the present invention. .
7A to 7C are explanatory views illustrating a process of laminating block walls, curve elements, drainage materials, backfill materials, and geotextiles in multiple layers in the method of constructing a reinforced earth retaining wall having a curved element according to the present invention.

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

Reinforcing soil wall 100 having a curved element according to the present invention is applied to the block-type reinforcement soil wall using the geotextile 180 as a reinforcing material, as shown in the overall cross-sectional view in Figure 2, laminated in multiple layers on the front Block wall 110 is provided.

Such a block wall 110 is preferably made of a concrete block block 112, as shown in Figure 3, when laminated to be reinforced structurally by constructing a reinforcement column (not shown) such as reinforcing bars vertically Can be.

And reinforcing soil wall 100 having a curved element according to the present invention is a horizontal restraining element 130 is formed by stacking a multi-layered curve element (curb element) 140 on the back of the block wall 110 to form a wall ).

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The curved element 140 is formed in a trapezoidal shape as a whole and is structurally stable. Preferably, as shown in FIG. 4, the front surface 142 coincides with the rear surface of the block wall 110. The upper and lower surfaces 144 and 146 are interviewed, and the rear surface 148 is formed of an inclined surface having a narrow upper width and a lower lower width.

In addition, such a curved element 140 has a key coupling structure in order to suppress lateral displacement between the upper and lower layers.

That is, as shown in cross section in Figure 4, the key groove 152 is formed concave on the upper surface of the curved element 140 on the lower side, the lower surface of the curved element 140 on the upper side Key protrusions 154 corresponding to the key grooves 152 are formed to form a key combination by combining with each other. Therefore, such a key combination can effectively suppress the lateral displacement between the upper and lower layers.

In addition, the key grooves 152 and the key protrusions 154 of the curved element 140 of the upper and lower sides narrowly fix the front end of the geotextile 180 to be described later.

The curve element 140 may be formed at a height corresponding to each layer of the block wall 110, and if necessary, one curve element 140 corresponding to the plurality of block wall layers 110. ) Layers may be formed.

And reinforcing soil wall 100 having a curved element according to the present invention includes a drain 160 formed by laying the crushed stone 162 on the rear of the transverse restraining element 130.

In addition, the backfill material 170 formed by laying the general soil 172 is formed on the rear surface of the drainage material 160.

Such crushed stone 162 of the drainage material 160 and the general earth and sand 172 of the backfill material 170 is a proper compaction work is required to be carried out of course to ensure excellent ground support.

And reinforcing soil wall 100 having a curved element according to the present invention is the ground between the curved element 140 of each layer and the crushed stone 162 of the drain material 160 and the general soil 172 of the backfill material 170 It includes a geotextile 180 to structurally reinforce it.

Such geotextile 180 is preferably an HDPE integral geogrid structure 182 as shown in FIG. 5A, a PET bonded geogrid structure 184 as shown in FIG. 5B, or as shown in FIG. 5C. One of the same PP integrated geogrid 186.

As shown in FIG. 2, the geogrid geotextiles 180 of the geogrids are disposed between the curved elements 140 of each layer and the crushed stone 162 and the backfill material 170 of the drain 160, respectively. It is a laminated structure with a lot.

Also, as shown in detail in FIG. 4, the geotextiles 180 are formed at upper and lower surfaces of the curved elements 140 when the upper and lower layers of the curved elements 140 are stacked. It is fixed between the key groove 152 and the key projection 154.

Hereinafter, the construction method 200 of the reinforced soil retaining wall having a curved element according to the present invention will be described in detail with reference to the drawings.

Construction method of reinforcing soil wall having a curved element according to the present invention 200 is shown step by step in Fig. 6a to 6d, first construct the block wall 110 on the front, and the geotextile 180 is A step S1 is performed along the back and bottom of the block wall 110.

In this step (S1), the first layer, which is the lowest layer, may delete the geotextiles 180 as shown in FIG. 6A, and install the geotextiles 180 from the second layer, as shown in FIG. 2. have.

In addition, such a step (S1) may be structurally reinforced by constructing the block wall 110 using the concrete block block 112, and by constructing a reinforcing material (not shown) such as rebar vertically.

Next, as shown in FIG. 6B, a step S2 of forming a lateral restraining element 130 is performed by pouring a curved element 140 using cement mixed soil behind the block wall 110. .

As such, in the step S2 of forming the curb element 140 using the cement mixture soil behind the block wall 110 to form the transverse restraining element 130, the front surface 142 is mixed with the site soil. Interview with the rear surface of the block wall 110, and the upper and lower surfaces (144, 146) is made of a flat surface, the rear surface 148 is formed of an inclined surface with a narrow upper width, the lower width as a whole The curved element 140 is constructed with a trapezoidal cross section.

As such, in the process of pouring the curve element 140, the cement mixture soil may be constructed through an injection machine (not shown).

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And the upper surface is to form a key groove 152, as described later, such a key groove 152 is mutually with the key projection 154 formed on the lower surface of the curved element 140 of the upper layer To act as a key combination between the upper and lower layers.

In addition, the construction method 200 of the reinforced earth retaining wall having a curve element according to the present invention is shown in Figure 6c after the step (S2) of installing the transverse restraining element 130 made of the curve element 140 As shown, the step of constructing the backfill material 170 by laying a general earth and sand 172 on the back of the drain member 160 and the drain member 160 made of crushed stone 162 in the back of the curve element 140 (S3) ) Is done.

In such a step (S3) by using a vibrating roller (not shown) for the crushed stone 162 of the drainage material 160 and the general soil 172 of the backfill material 170, appropriate vibration compacting operation is essentially implemented Of course, support should be strengthened.

Next, as shown in FIG. 6D, the upper block wall 110 is stacked on the block wall 110, and the transverse restraining element 130, the drainage 160, and the backfill 170 are stacked. After installing the new geotextiles 180 above, the step (S4) of fixing the front end of the geotextiles 180 between the upper and lower surfaces of the curve element 140 located at the upper and lower portions thereof.

That is, the step (S4) of fastening the front end of the geosynthetic fiber 180 between the upper and lower surfaces of the curved element 140 located at the upper and lower portions thereof is an HDPE integrated geogrid (the geotextile 180) ( 182, PET bonded geogrid 184, or PP integral geogrid 186.

The geotextile 180 is formed between the key grooves 152 and the key protrusions 154 formed on the upper and lower surfaces of the curved element 140 when the curved elements 140 are stacked up and down. In the construction to fix the stenosis fixed.

In addition, the construction method 200 of the reinforced earth retaining wall having a curved element according to the present invention, after the construction of one layer is completed as described above by repeating the steps (S1) ~ (S4) in a multi-layer block wall 110 and The rear surface of the block wall 110, the curve element 140, the drainage 160 and the back filling material 170 is formed, and the geosynthetic fiber 180 is inserted between each layer to stack the integrated structure in a multi-layer Done.

Such steps are shown in FIGS. 7A-7C,

That is, the block wall 110 of the lower layer and the curvature element 140, the drainage 160, and the backfill 170 are successively installed on the rear surface of the block wall 110, as shown in FIG. 7A. Likewise, the block wall 110 of the upper layer is raised on the block wall 110 of the lower layer, and the upper layer geotextile 180 is placed on the rear surface of the block wall 110 of the upper layer and the curve element 140 of the lower layer. ), Up the drain 160 and backfill 170.

And as shown in Figure 7b, the step of placing the upper layer curve element 140 using cement mixed soil in a laminate on the geotextile 180 of the upper layer to form a transverse suppression element 130 (S2) Is carried out.

When the curving elements 140 are stacked up and down in this manner, as illustrated in FIG. 4, the front end of the geotextiles 180 is formed in the key groove 152 formed on the upper surface of the lower layer curve element 140. And, by being squeezed and fixed between the key projection 154 formed on the lower surface of the upper layer curve element 140, it is fixed stably integrally.

When the front end of the geotextile 180 is fixed as described above, the upper layer drain 160 consisting of the crushed stone 162 at the rear of the upper layer curve element 140 and the rear portion of the upper layer drain 160 The general soil sand 172 is laid in step S3 of constructing the top layer backfill material 170.

Next, as shown in FIG. 7C, the block wall 110 of another upper layer is raised on the block wall 110 of the upper layer, and the rear surface, the curve element 140, the drainage 160 and Lay another geotextile 180 on the backfill material 170, again stacking the top layer curve element 140, and crushed stone of the top layer drain 160 on the back of the top layer curve element 140 162 and the upper layer backfill material 170 is carried out again (S4).

When the steps as shown in FIGS. 7A to 7C are repeated as desired again, a block wall 110 stacked in multiple layers is formed on the front surface, and a curved element 140 is formed on the rear surface of the block wall 110. ), Drainage material 160 and backfill material 170 is disposed, the reinforcing soil wall having a curved element of the present invention as shown in Figure 2 structurally reinforced by geotechnical 180 is laminated in multiple layers for each layer ( 100) can be built.

The reinforced earth retaining wall 100 having the curved element according to the present invention constructed as described above has curved elements 140 having a layered layer of cement mixed soil on the rear surface of the block wall 110 stacked in multiple layers. By acting as a wall to form a wall can act as a structure such as the existing RC (reinforced concrete) retaining wall, thereby ensuring a large stability of the reinforced soil retaining wall (100), the load of the reinforced soil retaining wall (100) It can greatly improve the stability against development and front wall collapse.

In addition, the reinforced earth retaining wall 100 having a curved element according to the present invention by constructing a multi-layer curved element 140 wall using the site soil on the back of the block wall 110, construction cost compared to the RC retaining wall structure This inexpensive, long curing period is not required, which can significantly shorten the working air.

In addition, the reinforced soil retaining wall 100 having a curve element according to the present invention is a key coupling between the upper and lower layers of the newly added curve element 140 on the back of the block wall 110 of the existing reinforced soil retaining wall 100 Then, the shearing phenomenon between the upper and lower layers is integrated by narrowing and fixing the front end of the geotextile 180 between the key groove 152 and the key protrusion 154 of the curved element 140 of each layer stacked up and down. By more effectively preventing the lateral displacement can be effectively suppressed, it is possible to build a stable reinforced soil retaining wall (100).

Although the present invention has been described in detail with reference to specific embodiments thereof with reference to the accompanying drawings, the present invention is not limited to such specific structures. Those skilled in the art may variously modify or change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. For example, the composition of the cement mixed soil may vary slightly depending on the site conditions without departing from the scope of the present invention. However, it is intended that the present invention cover modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

1: conventional reinforced earth retaining wall 10: block wall
20: Stiffener 30: Backfill Soil
100: reinforcement retaining wall with curve element
110: block wall 112: concrete block block
130: transverse restraint element 140: curve element
142: front 144,146: upper and lower
148: rear 152: key groove
154: key projection 160: drainage
162: crushed stone 170: backfill
172: general earth and sand 180: geotextile
182: HDPE integral geogrid structure
184: PET bonded geogrid structure
186: PP integral geogrid
200: construction method of reinforcement soil wall with curve element
S1: constructing a block wall in the front, and embedding geotextiles along the back and bottom of the block wall
S2: forming a transverse restraining element by placing a curve element using cement mixed soil on the geotextile;
S3: constructing the backfill material by laying a waste material consisting of crushed stone at the rear part of the curve element and general earth and sand in the rear part of the drain material.
S4: Constructing an upper side block wall on the block wall, and installing the geosynthetic fiber on the transverse restraint element, drainage and backfill material, and then clamping the front end of the geosynthetic fiber between the upper and lower surfaces of the laminated curved element step

Claims (11)

In the block type reinforced earth retaining wall using a geotextile as a reinforcing material,
Block walls stacked in multiple layers on the front;
A transverse suppression element on which a plurality of curve elements are stacked on a rear surface of the block wall to form a wall;
A drain formed by laying down a crushed stone layer on the back of each curved element of said transverse restraining element;
A backfill material formed by laying general soil on the back of each crushed stone layer of the drainage material; And
It comprises a; geosynthetic fibers fixed to the shear using the curve elements of each layer, laminated in multiple layers for each layer;
The curving element of the transverse restraint element is made of cement mixed soil constructed using field soil, the front face is interviewed to coincide with the rear face of the block wall, and the upper and lower face faces are flat, Reinforced earth retaining wall having a curved element, characterized in that the upper width is narrow, the lower width is formed of a wide slope is formed in a trapezoidal cross section as a whole. delete delete According to claim 1, The curved elements are formed in the upper surface of the curved element on the lower side of the key groove is concave, the lower surface of the curved element on the upper side is formed with key projection corresponding to the key groove is coupled to each other The reinforced earth retaining wall with a curved element, characterized in that to suppress the lateral displacement between the upper and lower layers. 5. The reinforcement earth retaining wall of claim 4, wherein the curve elements are each formed at a height corresponding to each layer of the block wall. According to claim 1, wherein the geosynthetic fiber is any one of HDPE integrated geogrid, PET bonded geogrid, or PP integrated geogrid, when the upper and lower stacking of the curved element of each layer, the front end of the top and bottom of the curve element A reinforced earth retaining wall having a curved element, characterized in that it is fixed between the key groove and the key projection formed on the surface. In the construction method of block type reinforced earth retaining wall using geotextile as reinforcement material,
Constructing a block wall on the front surface and embedding geotextiles along the back and bottom of the block wall;
Placing a curvilinear element using cement mixed soil on the geotextiles to form a transverse suppression element;
Constructing a backfill material by laying wastewater consisting of crushed stone at the back of the curve element and general earth and sand in the rear part of the drainage material; And
An upper side block wall is constructed on the block wall, and a geotextile is installed on the rear surface of the upper side block wall, the transverse restraining element, the drainage material and the backfill material, and then the front end of the geotextile fiber is placed on top and bottom thereof. And narrowing between the upper and lower surfaces of the stacked positioned curved elements; repeating the above steps, a block wall stacked in multiple layers is formed on a front surface thereof, and a horizontal restraining element is formed on a rear surface of the block wall. The drainage material and backfill material are formed in turn, and for each layer, the geotextiles are laminated in multiple layers with their front ends fixed by a key bond by a curved element,
In the step of forming a curb element using a cement mixed soil on the geosynthetic fiber to form a transverse suppression element is mixed with the soil on the field, the front face is interviewed to coincide with the rear surface of the block wall, upper and lower The surface is made of a plane, the back is a narrow width of the upper, the lower width is formed of a wide slope of the reinforced earth retaining wall with a curved element, characterized in that to construct a curved element with a trapezoidal cross-section as a whole. delete delete 8. The method of claim 7, wherein the step of placing a curving element using cement mixed soil on the geosynthetic fiber to form a transverse restraint element is formed by recessing the key groove in the upper surface of the lower curved element, the upper curve The lower surface of the element is convexly formed to form a key protrusion corresponding to the key grooves to be coupled to each other to prevent lateral displacement between the upper and lower layers, the curved element is a height corresponding to each layer of the block wall Method for constructing a reinforced soil retaining wall having a curved element, characterized in that to form each. 8. The method of claim 7, wherein the step of fixing the geosynthetic fiber by the curve element is any one of HDPE integral geogrid, PET bonded geogrid, or PP integral geogrid as geotextiles, the upper and lower sides of the curve element of each layer A method of constructing a reinforced earth retaining wall having a curved element, wherein the front end is squeezed and fixed between a key groove and a key protrusion formed on the upper and lower surfaces of the curved element at the time of lamination.

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