KR100768351B1 - Constructing method of reinforced soil wall and slope - Google Patents

Abstract

A method for constructing a greening reinforced earth retaining wall and a slope is provided to construct the greening slope firmly and easily by forming a planting soil layer with soil sacks, and to improve the stability by supporting the front of the slope with stainless steel wires. A base ground is compacted(S10), and a support frame is installed on the compacted base ground(S20). A reinforcing member made of nonwoven fabric or geo-grid is mounted on a bottom support part and the base ground(S30). A soil sack is filled with earth, and mounted in the rear part of the support frame(S40). A support mat made of geo-textile is mounted to prevent outflow of earth and sand(S50). A banking area is formed by filling and compacting the back of the support frame(S60), and the extension part of the soil sack and the end of the support mat are arranged on the banking area(S70). Anchor fiber of the extension part and the end of the support mat are fastened to the banking area(S80), and the support frame is pulled forward and removed(S90).

Description

Constructing method of reinforced soil wall and slope}

1 is a block diagram showing the construction sequence of a preferred embodiment of the present invention.

Figure 2a to 2j is a sequential diagram showing the construction step of the green reinforced soil retaining wall and the slope according to an embodiment of the present invention.

3 is a perspective view showing the greening bag used in the preferred embodiment of the present invention.

Figure 4a is a perspective view showing the front portion configuration of the greening bag of the preferred embodiment of the present invention.

Figure 4b is a perspective view showing the back portion configuration of the greening bag of the preferred embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: foundation ground 20: support frame

20a: bottom support 20b: front support

30: reinforcement 40: greening bag

42: front part 42a: extension part

42b: Anchor fiber 44: Back portion

46: sewn part 47a, 48a: polyester fiber

47b: stainless wire 47c, 48c: nonwoven fabric

The present invention relates to a construction method for constructing a reinforcement slope using the principle of the reinforcement earth construction method and the construction of the earthen soil for the front surface of the reinforcement reinforcement soil is greening.

The landfill area is inevitably generated for road expansion work, large-scale land or land development, and therefore, it is necessary to construct a steep landfill to expand the volume ratio of roads, sites, and land. The facility is inevitable. Therefore, as a facility of this type, it was conventionally installed as a concrete retaining wall (R, C retaining wall), but recently, the block type reinforced earth retaining wall is actively applied due to visual stability or aesthetic limitation of the user. This is also a uniform type of concrete block, which was not environmentally friendly.

In addition, when the cut slope of the established soil section due to road opening and site development, etc. is collapsed or troubled due to external influences such as rainfall, it is necessary to repair and reinforce the slope slope or step wall. However, this is a cause of civil complaints and a large concrete structure, which is not friendly with the surrounding slopes, causing visual discomfort of the user and not being environmentally friendly.

Therefore, the most important thing in recent years is the importance of eco-friendliness and aesthetics. As mentioned above, when reinforcing the retaining wall for expanding the volume of the fill part, or the cut slope in which collapse or problem occurred, the front of the reinforced fill body is green. Emphasis is placed on time and space.

In order to meet such social demands, recently, reinforcement soil construction methods using geotextiles have been used to avoid the use of concrete structures. At this time, the front of the reinforcement soil is using a method consisting of a concrete panel, or a block.

However, the prior art as described above has the following problems.

That is, when the retaining wall structure of the fill part is installed, the front of the reinforcement soil is made of concrete panels or blocks, which is not aesthetically limited and environmentally friendly. In case of construction, there is a problem that defects of reinforcement soils occur because of inequality settlement often occurs as a heterogeneous material between blocks and fill bodies, and reinforcement of slopes using reinforcement soil blocks is not applicable.

Therefore, methods such as the greening of the front surface of reinforcement soils have been developed by overcoming the above problems, but the construction method is difficult, which causes difficulties in the field construction and the lack of active greening. Wire mesh is used to keep the greening layer stable on the front, but this is an expensive product, which is inexpensive and protects the vegetation body on the front when a fire is created when the vegetation environment is made of sheets made of poly-based fibers. There is a problem that the original purpose of emphasizing the eco-friendliness was lost due to the loss of ash and fall of vegetation soil.

Therefore, the present invention has been made in order to solve the conventional problems as described above, the object of the present invention is to form a vegetation soil layer on the front of the fill layer by jumony, the support frame until the fill layer is completely formed during construction By supporting this, the stability of the construction is satisfied, and the construction method of the greening reinforcement soil retaining wall and slope construction method is simplified.

In addition, the present invention is to provide a method of constructing a green reinforced soil retaining wall and the slope that can be supported by a material containing a stainless wire on the front surface of the slope to prevent the slope from being collapsed at the time of fire even when a fire occurs.

According to a feature of the present invention for achieving the object as described above, the present invention comprises the steps of (a) compacting the foundation ground; (b) installing a support frame for supporting the fill layer while forming the fill layer; (c) installing a reinforcing material on the foundation of the back of the support frame; (d) installing a greening bag filled with seeds and vegetation soil of a plant on the back of the support frame; (e) installing a support mat on a rear surface of the support frame such that an end portion passes over the front of the greening bag and the support frame at a predetermined length; (f) filling and compacting the backside of the greening sack to form a fill layer; (g) providing an end portion of the greening bag and an end portion of the support mat to an upper surface of the fill layer; (h) fixing an end portion of the installed greening bag and the supporting mat to an upper surface of the fill layer; And (i) removing the support frame.

In addition, the first step (a) to (i) may be constructed, and then the steps (b) to (i) may be repeated.

At this time, the reinforcing material is geo-textile (geo-grid, geo-textile) is formed of fiber.

And the reinforcing material may be a nonwoven fabric.

On the other hand, the present invention includes a method that is constructed including the steps (a) to (g) and (i) without the step (h).

In addition, the present invention includes a method which is constructed without (c), including (a) and (b) and (d) to (i).

At this time, the present invention also includes a method constructed by the method of repeating the above steps.

On the other hand, the present invention comprises the steps of (a) compacting the foundation ground; (b) installing a support frame for supporting the fill layer while forming the fill layer; (d) installing a greening bag filled with seeds and vegetation soil of a plant on the back of the support frame; (f) filling and compacting the backside of the greening sack to form a fill layer; (g ') disposing an end portion of the greening bag on the top of the fill layer; And (i) a method of constructing the greening reinforcement soil retaining wall and the slope including removing the support frame.

Here, the present invention may be constructed by first constructing the steps (a) to (i), and then repeating the steps (b) to (i).

Here, the greening sac is formed to have a size corresponding to the height and width of the support frame, and is formed by coupling a rear portion to form a rear portion to form a front portion.

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And the front portion is formed by combining the perforated nonwoven fabric in the mesh woven with polyester fibers, stainless steel wire, the back portion is formed by combining the perforated nonwoven fabric in the polyester fiber mesh.

At this time, an extension portion of which the front portion extends to a predetermined length is formed at an end portion in the height direction of the support frame of the front portion.

And the end of the extension is connected to the anchor fiber formed of a polyester fiber net.

In addition, the front portion and the back portion has one or more intermediate stitches along the transverse direction to form a multi-layered sac.

On the other hand, the support frame, and the bottom support is supported on the bottom surface; It is configured to include a front support that is bent at a predetermined angle to the bottom support to support the front of the greening bag.

At this time, a part of the front support may be formed transparent.

And the bottom support and the front support may be configured to be detachable.

According to the present invention having the configuration as described above, since the greening ton and fill layer is formed in a state that the support frame is firmly supported, there is an advantage that can easily and stably form the vegetation soil layer on the entire slope.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the method of construction of the greening reinforced soil retaining wall and slope according to the present invention as described above will be described in detail.

1 is a block diagram showing the construction sequence of a preferred embodiment of the present invention, Figures 2a to 2j is a construction flowchart showing each construction step of a preferred embodiment of the present invention, Figure 3 is a preferred embodiment of the present invention Fig. 4A is a perspective view showing the front part of the greening bag of the preferred embodiment of the present invention, and Fig. 4B is a perspective view showing the back part of the greening bag of the preferred embodiment of the present invention.

As shown in Fig. 1 and Fig. 2a, the present invention first starts from compacting the base ground 10 on which the greening slope is to be constructed (S10). At this time, the degree of compaction is preferably such that a predetermined support force can be expressed in consideration of the weight of the fill layer 60 to be deposited and the ground strength of the ground.

After the ground is chopped, the support frame 20 is installed on the ground, as shown in FIG. 2B (S20). The support frame 20 supports the fill layer 60 while the fill layer 60 is formed. The support frame 20 includes a bottom support part 20a supported on the ground and a front support part 20b extending and extending from the bottom support part 20a to have a predetermined angle.

The angle of the bottom support portion 20a and the front support portion 20b is to determine the inclination angle of the completed greening slope so that it is preferably 50 ° to 80 °. In addition, the bottom support portion 20a may be formed relatively thin or may be formed of a plurality of thin rods combined with the front support portion 20b to firmly adhere the reinforcement 30 and the foundation ground 10 to be described later.

In addition, the bottom support part 20a and the front support part 20b may be formed to be detachable to facilitate removal of the support frame 20.

After the support frame 20 is installed on the foundation surface, as shown in FIG. 2C, the reinforcing material 30 is installed on the bottom support portion 20a and the upper surface of the foundation surface (S30). The reinforcing material 30 is to increase the shear resistance between the filling layer 60 to be constructed, and to prevent the slope from collapsing by the main earth pressure. The reinforcing material 30 is a member having a large friction strength and a high tensile strength is used, preferably a nonwoven fabric or geotextile reinforcing material 30 (Geo Grid) is used.

After the installation of the reinforcing material 30, as shown in Figure 2d, vegetation soil filled greening sack 40 is installed on the back of the support frame 20 (S40). At this time, one side of the extension portion 42a formed at both ends of the greening sac 40 is disposed on the reinforcing material 30, the other side is over the support frame 20 hangs on the front of the support frame 20. . Also preferably, the end of the extension portion 42a is formed of anchor fibers 42b. The anchor fiber 42b is a portion woven from polyester fiber to facilitate fixing the extension part 42a to the fill layer 60.

Detailed structure of the greening bag 40 will be described in detail in the following description of Figure 3, Figure 4a, 4b.

After installing the greening sac 40, as shown in Figure 2e, the support mat 50 is installed (S50). As the support mat 50 is shown to prevent the outflow of the soil layer of the fill layer 60, one side is to be provided on the extension portion 42a of the greening bag 40 and the other side is the support frame Hand over (20) hangs on the front of the support frame (20). At this time, the support mat 50 is composed of a mesh woven from geotextiles (Geo Textile).

After installing the support mat 50, as shown in FIG. 2F, the back surface of the support frame 20 is filled and compacted to form a fill layer 60 (S60).

After the filling layer 60 is formed, as shown in FIG. 2G, the extension 42a of the greening sac 40 and the end of the support mat 50 hanged on the front of the support frame 20. Fold and lay out on the top surface of the fill layer (60) (S70).

After that, as shown in Figure 2h, the anchor fiber 42b portion formed at the end of the extension portion 42a and the end of the support mat 50 is firmly fixed to the fill layer 60 (S80). The fixing can be made by a variety of methods, but is preferably fixed using a small pile 70 made of a deformed reinforcing hook.

When the ends of the extension part 42a and the support mat 50 are fixed, as shown in FIG. 2i, the support frame 20 is pulled to the front to remove the support frame 20 (S90). At this time, the support frame 20, as described above, the bottom support portion 20a and the front support portion 20b may be configured to be detachable, in this case, without removing the entire support frame 20, the support frame Only the front support 20b of the 20 can be removed from the bottom support 20a.

Thereafter, as shown in FIG. 2J, the support frame 20 is reinstalled on the top surface of the fill layer 60, and the steps S20 to S90 are repeated to form the fill layer 60 to a desired height.

Hereinafter, with reference to Figures 3, 4a and 4b to examine in detail the structure of the greening bag 40 used in the preferred embodiment of the present invention.

Figure 3 shows the overall configuration of the greening bag 40 used in the preferred embodiment of the present invention. As shown in FIG. 3, the greening sac 40 is connected to the front part 42 forming the front surface of the greening sac 40 and the back portion 44 forming the back side by stitching. A pocket is formed in the space between the front part 42 and the rear part 44 so that the vegetation soil and seed seeds are mixed and filled in the space. At this time, the vegetation soil refers to a mixture of fertilizer and soil suitable for vegetation so that the seeds can germinate and grow. The bag is formed in an appropriate number depending on the height of the fill layer 60 to be constructed. 3 illustrates that two pockets are formed between the front part 42 and the back part 44 to form three pockets as an example. However, the number of pockets can be constructed by appropriately changing the number of locks.

On the other hand, the end of the front portion 42 is formed longer than the rear portion 44, as shown in the extension portion 42a extending to a predetermined length is formed. The extension part 42a is positioned on the top layer of the fill layer 60 to fix the greening sac 40 on the fill layer 60. At this time, in order to facilitate the fixing, the end of the extension portion 42a is preferably formed of anchor fibers 42b. The anchor fiber 42b is formed of a fiber made of a fiber material having a relatively large tensile strength and a relatively wide shape so that the hole of the net is easily fixed.

4A shows the configuration of the front portion 42 in detail. As shown, the front portion 42 is formed by combining the perforated nonwoven fabric 47c in a mesh woven of polyester fiber 47a and stainless wire 47b. Weaving a net including the stainless wire 47b in the front part 42 is that when the front part 42 is burned due to a fire, the vegetation soil and the fill layer 60 of the greening bag 40 are burned. This is to prevent the soil from spilling. Therefore, the front part 42 which is directly exposed to the fire in the event of fire includes a stainless wire 47b resistant to heat. And in the middle of the front portion 42, it is preferable that the intermediate stitching portion 46 for stitching with the back portion 44.

On the other hand, the configuration of the back portion 44 is shown in detail in Figure 4b. The back portion 44 is basically manufactured in a similar form to the front portion 42, but does not include the stainless wire 47b. That is, the back portion 44 is formed of the polyester fiber 48a and the perforated nonwoven fabric 48c. This is because the back portion 44 is a portion which is not directly exposed to fire even when a fire occurs.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

That is, in the present invention, the construction method may vary depending on the construction conditions such as the required degree of safety depending on the ground to be constructed, the height of the fill layer 60, the type of the structure to be constructed on the cut surface.

For example, the reinforcing material 30 is to generate a resistance to the coarse earth pressure of the fill layer 60, the height of the fill layer 60 is relatively low, the extension portion 42a of the greening bag 40 and When sufficient resistance generate | occur | produces with the support mat 50, you may construct without installing.

In addition, when the support force of the fill layer 60 is sufficiently exerted only by the support force of the greening bag 40, the support mat 50 may not be installed, and only the greening bag 40 may be installed.

In addition, in the preferred embodiment of the present invention, a construction method of fixing the extension portion 42a of the greening sac 40 and the end of the support mat 50 on the fill layer 60 using the small pile 70 is performed. Although described, the greening sac 40 and the support mat 50 may be sufficiently fixed by the load of the fill layer 60, the present invention can be carried out without a fixing step.

In the construction method of the greening reinforced soil retaining wall and the slope according to the present invention as described above in detail can be expected the following effects.

That is, since the greening tonang is provided on the front of the reinforcing slope, the vegetation soil layer is formed separately, there is no fear that the vegetation soil and seeds are lost, there is an advantage that a solid greening slope can be formed.

In addition, the present invention has a merit that the support frame is supported when the vegetation soil layer is formed on the front side of the greening slope, that is, when the greening tonic is installed.

In addition, the present invention is because the front surface of the reinforced slope is reinforced with a material containing a stainless wire, there is no fear that the slope is temporarily collapsed even in the event of a fire, there is an advantage that the stability is improved.

On the other hand, the present invention is constructed using a support frame formed of a transparent member on the front, it is possible to confirm the construction state of the back of the support frame during construction, there is an advantage that the accuracy of the construction is increased.

Claims (20)

(a) compacting foundation ground; (b) installing a support frame for supporting the fill layer while forming the fill layer; (c) installing a reinforcing material on the foundation of the back of the support frame; (d) installing a greening bag filled with seeds and vegetation soil of a plant on the back of the support frame; (e) installing a support mat on a rear surface of the support frame such that an end portion passes over the front of the greening bag and the support frame at a predetermined length; (f) filling and compacting the backside of the greening sack to form a fill layer; (g) providing an end portion of the greening bag and an end portion of the support mat to an upper surface of the fill layer; (h) fixing an end portion of the installed greening bag and the supporting mat to an upper surface of the fill layer; And (i) being constructed, including removing the support frame: The greening bag, A front portion formed of a polyester fiber and a mesh woven of stainless wire; A method for constructing a greening reinforcement soil retaining wall and a slope, characterized in that the rear portion formed by bonding the perforated nonwoven fabric to the polyester fiber net is formed to be bonded. The method of claim 1, First, the steps (a) to (i) are constructed, and then the steps of (b) to (i) are repeated to be constructed. The method of claim 2, The reinforcing material is a geo-reinforced earth retaining wall and slope construction method characterized in that the geo-grid, geo-textile formed of fiber. The method of claim 3, wherein The reinforcing material is a method of construction of the greening reinforcement earth retaining wall and the slope characterized in that the non-woven fabric. (a) compacting foundation ground; (b) installing a support frame for supporting the fill layer while forming the fill layer; (c) installing a reinforcing material on the foundation of the back of the support frame; (d) installing a greening bag filled with seeds and vegetation soil of a plant on the back of the support frame; (e) installing a support mat on a rear surface of the support frame such that an end portion passes over the front of the greening bag and the support frame at a predetermined length; (f) filling and compacting the backside of the greening sack to form a fill layer; (g) installing an end portion of the greening bag and an end portion of the support mat on an upper surface of the fill layer; And (i) being constructed, including removing the support frame: The greening bag, A front portion formed of a polyester fiber and a mesh woven of stainless wire; A method for constructing a greening reinforcement soil retaining wall and a slope, characterized in that the rear portion formed by bonding the perforated nonwoven fabric to the polyester fiber net is formed to be bonded. The method of claim 5, First, the steps (a) to (i) are constructed, and then the steps of (b) to (i) are repeated to be constructed. (a) compacting foundation ground; (b) installing a support frame for supporting the fill layer while forming the fill layer; (d) installing a greening bag filled with seeds and vegetation soil of a plant on the back of the support frame; (e) installing a support mat on a rear surface of the support frame such that an end portion passes over the front of the greening bag and the support frame at a predetermined length; (f) filling and compacting the backside of the greening sack to form a fill layer; (g) providing an end portion of the greening bag and an end portion of the support mat to an upper surface of the fill layer; (h) fixing an end portion of the installed greening bag and the supporting mat to an upper surface of the fill layer; And (i) being constructed, including removing the support frame: The greening bag, A front portion formed of a polyester fiber and a mesh woven of stainless wire; A method for constructing a greening reinforcement soil retaining wall and a slope, characterized in that the rear portion formed by bonding the perforated nonwoven fabric to the polyester fiber net is formed to be bonded. The method of claim 7, wherein First, the steps (a) to (i) are constructed, and then the steps of (b) to (i) are repeated to be constructed. (a) compacting foundation ground; (b) installing a support frame for supporting the fill layer while forming the fill layer; (d) installing a greening bag filled with seeds and vegetation soil of a plant on the back of the support frame; (f) filling and compacting the backside of the greening sack to form a fill layer; (g ') disposing an end portion of the greening bag on the top of the fill layer; And (i) being constructed, including removing the support frame: The greening bag, A front portion formed of a polyester fiber and a mesh woven of stainless wire; A method for constructing a greening reinforcement soil retaining wall and a slope, characterized in that the rear portion formed by bonding the perforated nonwoven fabric to the polyester fiber net is formed to be bonded. The method of claim 9, First, the steps (a) to (i) are constructed, and then the steps of (b) to (i) are repeated to be constructed. delete delete The method according to any one of claims 1 to 10, The greening bag, Greening reinforcement soil retaining wall and the method of construction characterized in that the size is formed corresponding to the height and width of the support frame. delete The method of claim 13, And an extension portion having the front portion extending to a predetermined length is formed at an end portion of the front frame in the height direction of the support frame. The method of claim 15, Greening reinforcement earth retaining wall and slope construction method characterized in that the end of the extension is connected to the anchor fiber formed of a polyester fiber net. The method of claim 13, The front portion and the back portion is provided with one or more intermediate stitching along the transverse direction to form a multi-layered soil bag, characterized in that the construction method of the retaining wall and slopes. The method according to any one of claims 1 to 10, The support frame, A bottom support portion supported on the bottom surface; The method of constructing a green reinforcement soil retaining wall and slope characterized in that it comprises a front support that is bent at a predetermined angle to the bottom support to support the front of the greening bag. The method of claim 18, Part of the front support portion is a method of construction of greening reinforcement soil retaining wall and the slope characterized in that formed transparent. The method of claim 18, The bottom support portion and the front support portion of the green reinforcement earth retaining wall and the construction method of the slope characterized in that it is configured to be detachable.

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