KR101693345B1 - Retaining wall using natural stones and construction method for this same - Google Patents

Abstract

A retaining wall structure using natural stone is disclosed. The disclosed retaining wall structure comprises a base concrete portion, a plurality of bottom natural stones, a plurality of top natural stones, a fixed rebar, a plurality of support beams, a bottom connecting rod, a top connecting rod, a plurality of lower support bars, a plurality of upper support bars, a wire mesh portion, a permeable concrete portion, and a filling soil. The construction thereof is simple, and can improve supporting force of the natural stone, and has a simple drainage structure.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a reticulated wall structure using a natural stone,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a retaining wall structure using natural stones, and more particularly, to a retaining wall structure constructed by stacking retaining wall structures using natural stones in multiple stages.

Generally, the retaining wall structure is constructed to prevent collapse due to the leakage of the soil from the soil or slope of roads and rivers. It is constructed of bricks, concrete, concrete panels and concrete blocks. Material retaining wall constructions are widely used.

However, the retaining wall made of concrete gives a sense of incongruity due to the specific color and uniform shape of the concrete, and the natural landscape is sometimes damaged.

Accordingly, natural-friendly natural stone retaining wall structures using natural natural stones scattered on rivers and mountains or processed natural stones processed by blasting stones have been constructed recently.

The retaining wall structures using such natural stones are disclosed in Japanese Patent Application Nos. 10-1530871 and 10-0396294.

The retaining wall structure using the natural stone in the related art is provided with a supporting member behind the natural stone in order to increase the supporting force of the natural stone. In this case, the supporting member is limited in its supporting force because the front end of the supporting member is coupled with the back surface of the natural stone through an anchor structure . That is, the natural stone and the supporting member are separated by the load of the filled soil, resulting in a risk of collapse of the retaining wall.

In addition, since it is necessary to fix anchors in all natural stones forming the retaining walls, the construction time is very long, and the construction period is increased and the construction cost is increased.

Patent No. 10-1530871 Patent No. 10-0396294

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems as described above, and it is an object of the present invention to provide an improved type It is aimed to provide a retaining wall structure using natural stone.

In order to achieve the above object, the present invention provides a retaining wall structure using natural stones in which a plurality of natural stones are installed in front of a cut slope, and natural stone is filled between the natural stones and sliced slopes, A foundation concrete part installed on the ground located in front of the cut slope; A plurality of lower natural stones fixed in an upright manner to the foundation concrete part and arranged laterally adjacent to each other; A plurality of upper natural stones stacked in a multi-stage on the upper rear side of the lower natural stones; A fixed reinforcing bar fixing the plurality of lower natural stones and the plurality of upper natural stones to each other; A plurality of support beams spaced rearward from the plurality of lower natural stones and the plurality of upper natural stones and installed in a state where a lower end is fixed to the foundation concrete part and spaced apart from each other in a left and right direction; A lower connecting rod inserted into the plurality of lower natural stones so as to be pushed right and left; An upper connecting rod inserted into the plurality of upper natural stones in a lateral direction; A plurality of lower supporting bars installed horizontally to connect the lower connecting rod and the plurality of supporting beams, A plurality of upper support reinforcing bars installed horizontally to connect the upper connecting rods and the plurality of support beams and installed to be spaced apart from each other; A plurality of lower natural stones and a rear surface of the plurality of upper natural stones are spaced apart from each other by a predetermined distance; A water permeable concrete portion laid between the plurality of lower natural stones and the rear surface of the plurality of upper natural stones and the wire mesh portion to integrate the plurality of lower natural stones and the plurality of upper natural stones into one lump; And a filler filled between the water-permeable concrete part and the slope slope.

Wherein each of the plurality of lower natural stones is punched right and left to insert the lower connecting rod; And a first rear groove formed to be connected to the first left and right perforations by being punched forward from the rear surface, wherein each of the plurality of top natural stones is perforated to the left and right, ; And a second rear groove formed to be connected to the second left and right perforations by being punched forward from the rear surface, wherein a front end of each of the plurality of lower support reinforcing bars is formed in a ring shape, And the front end of each of the plurality of upper support reinforcing bars is formed in a ring shape and inserted through the second rear groove, so that the second left and right connecting rods are inserted into the second right and left connecting rods, The upper connecting rod inserted in the perforation can be connected to the upper connecting rod.

Wherein each of the plurality of lower supporting bars and the plurality of upper supporting bars comprises a hook portion for hooking the lower connecting rod or the upper connecting rod; A front reinforcing bar coupled to a rear end of the loop; A turnbuckle coupled to a rear end of the front reinforcing bar and having a length adjustable; And a rear reinforcing bar coupled to a rear end of the turnbuckle and having a rear end welded to the plurality of support beams.

The upper end may be coupled to the plurality of support beams and the lower end may be coupled to the foundation concrete part to improve the support force of the plurality of support beams.

According to the above, since the construction is easy, the construction period is shortened and the construction cost can be reduced.

In addition, since the supporting force for supporting the natural stone is improved as compared with the existing retaining wall structure, the separation of the natural stone from the structure can be prevented, and the maintenance period can be extended, thereby reducing the maintenance cost.

In addition, the present invention has a water permeable concrete part formed on the rear surface of a natural stone, and it is possible to reduce the damage of the rainy season by a good drainage in the case of goodness, and the permeable concrete part functions to adsorb heavy metals, There is an effect that it can be drained in a state of being made.

1 is a side cross-sectional view of a retaining wall structure according to an embodiment of the present invention,
2 is a front view of a retaining wall structure according to an embodiment of the present invention,
Fig. 3 is an enlarged view of the configuration of the lower support steel bar of Fig. 1,
4 is a perspective view showing a part of the construction of a retaining wall structure according to an embodiment of the present invention,
FIG. 5 is a cross-sectional view illustrating a state in which the construction of FIG. 4 is performed.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Also in the figures, the thickness of the components is exaggerated for an effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and / or plan views that are ideal illustrations of the present invention. In the drawings, the thicknesses of the films and regions are exaggerated for an effective description of the technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are produced according to the manufacturing process. For example, the etched area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the invention. Although the terms first, second, etc. have been used in various embodiments of the present disclosure to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some instances, it should be noted that portions of the invention that are not commonly known in the description of the invention and are not significantly related to the invention do not describe confusing reasons to explain the present invention.

Hereinafter, a retaining wall structure using a natural stone according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG.

The retaining wall structure of the present invention comprises a foundation concrete portion 16, a support beam 20, lower and upper natural stones 22, 25 and 28, fixed reinforcing bars 31 and 32, lower and upper supporting reinforcing bars 40 and 40 ' A wire net 48, a specific concrete section 51, and a fillet 60.

The foundation concrete portion 16 is formed by placing concrete on the front ground 11 of the slope slope 13. At this time, the foundation concrete can be formed by laying a foundation steel (not shown) and placing concrete thereon.

When forming the foundation concrete portion 16, a plurality of lower natural stones 22 are arranged in the left-right direction, the lower end portions of the plurality of support beams 20 are arranged in the left-right direction, and then concrete is laid, The natural stone 22 and the plurality of support beams 20 are fixed to the foundation concrete portion 16 in the standing state.

In order to increase the supporting force of the support beam 20, the upper end of the vertical support 45 is welded to the support beam 20 when the foundation concrete 16 is formed, and the lower end of the vertical support 45 is welded It is possible to form the foundation concrete portion 16 by pouring the concrete so as to be embedded in the concrete. The vertical support 45 is made of a metal pipe and the lower end is formed in a bent shape so that the lower end of the vertical support 45 is buried in the foundation concrete part 16 so as to be coupled.

The support beams 20 are formed in the shape of a metal pipe, and are fixedly installed in the base concrete 16 in a state of being embedded. The lower end of the support beam 20 is horizontally bent and the lower end of the support beam 20 is embedded in the foundation concrete portion 16. The support beam 20 is inclined rearward in correspondence with the inclined surface of the cut- .

The support beams 20 are formed in a plurality of pieces so as to be arranged laterally on the front side of the cut slope surface 13 and can be welded and joined so that the plurality of support beams 20 are connected to each other. have.

The lower natural stones 22 and the upper natural stones 25 and 28 may be composed of natural natural stones that can be collected from rivers or mountains or artificial natural stones processed after being blasted.

In the present invention, the lower natural stones 22 and the upper natural stones 25 and 28 have the same structure, but differ only in the installation position. Therefore, only the structure of the lower natural stone 22 will be described.

The left and right perforations 23 are formed in the bottom natural stones 22 at the upper and lower middle heights and the left and right perforations 23 are formed in the upper and lower middle heights. A rear groove 24 is formed.

The left and right perforations 23 of the lower natural stones 22 disposed adjacent to the left and right are matched with each other and the lower end connecting rod 35 can be inserted through the left and right perforations 23. [ The lower connecting rod 35 is formed in the form of a pipe and can be cured by putting concrete therein to increase the weight and increase the supporting force.

The fixed reinforcing bars 31 and 32 fix one stage top natural stones 25 on the upper rear side of the lower natural stones 22, 25 and 28, and the upper two natural stones 25 on the rear upper side of the first stage natural stones 25, (28).

Only the lower support reinforcing bars 40, 40 ', and 40' 'are different from each other only in the installation position.

3, the lower support reinforcement 40 includes a ring 43 configured to be engaged with the lower connecting rod 35, a front reinforcing bar 42 coupled to the rear end of the ring 43, A turnbuckle 41 provided at the rear end of the turnbuckle 42 and a rear wire 44 connected to the rear end of the turnbuckle 41. [ The rear end of the lower support reinforcement 40 is hooked to the lower end connection portion 35 and the rear end of the rear reinforcement 44 is welded to the support beam 20 . At this time, the lower support reinforcing bars 40 are installed horizontally, and the upper support reinforcing bars 40 'and 40' 'installed on the upper supporting reinforcing bars 40 are horizontally installed.

The wire net 48 is connected to the natural stones 22, 25, and 28 so as to cover the entire rear area of the plurality of lower natural stones 22, the plurality of upper natural stones 25 of the first stage, And is spaced rearward at a predetermined distance.

At this time, the wire net 48 is fixed to the rear of the natural stones 22, 25, 28 through a fixed anchor 49 having a predetermined length. The wire mesh 38 is installed through at least two fixed anchors 49 for the respective natural stones 22, 25 and 28. The front of the fixed anchor 49 is fixed to the natural stones 22, 25 and 28 through an anchor fixing method and the rear of the fixed anchor 49 is fixed to the wire net 38 by fastening means such as wire or tie, Lt; / RTI >

The water permeable concrete part 51 is formed by placing a water permeable concrete material in the space between the lower and upper natural stones 22, 25, and 28 and the wire net 48 and curing the same. The water permeable concrete part 51 covers all of the rear entire area formed by the lower and upper natural stones 22, 25 and 28 and combines all of the plurality of lower natural stones and the plurality of upper natural stones 22, 25 and 28 It is integrated into one lump.

Meanwhile, in the present invention, the water-permeable concrete material may be composed of conventional water-permeable concrete material, but in this embodiment, the water-permeable concrete material is mixed cement prepared by mixing aggregate for permeable concrete, cement, and cellulose fiber A heavy metal adsorbent mixed with magnesium smelting slag and slaked lime may be added in a mixed state by adding 15 to 20% by weight of the mixed cement. At this time, the heavy metal adsorbent is manufactured by mixing the slag and the slaked lime at a ratio of 1: 1.

That is, the water permeable concrete material is formed by adding a heavy metal adsorbent (mixture of magnesium smelting slag and slaked lime) to the mixed cement (mixture of permeable concrete aggregate, cement and cellulose fiber), and the heavy metal adsorbent is composed of the total weight , And magnesium smelting slag and slaked lime can be constituted at a ratio of 1: 1.

As described above, the retaining wall structure of the present invention is characterized in that the water permeable concrete part 51 is formed on the rear surface of the lower natural stone 22 and the upper natural stones 25 and 28, The contained heavy metal component can be removed in the heavy metal adsorbent, and the heavy metal concentration can be drained in a reduced state.

Hereinafter, a method of constructing a retaining wall structure using a natural stone according to an embodiment of the present invention will be described.

The lower natural stones 22 are disposed at a predetermined distance in front of the slope slope 13 after the ground 11 in front of the slope slope 13 is compacted and the foundation stones 22 are placed on the foundation 11, And the lower ends of the plurality of support beams 20 are welded to the foundation reinforcing bars (not shown). The plurality of support beams 20 are disposed in front of the plurality of support beams 20 so as to be adjacent to each other in left- The natural stone 22 is placed and then the concrete material is cured by being cured to form the foundation concrete portion 16 in which the support beam 20 and the bottom natural stone 22 are fixed.

On the other hand, in order to improve the supporting force of the support beam 20, when the vertical support 45 is constructed, the upper end of the vertical support 45 is welded to the support beam 20 before the concrete material is poured, The lower end of the vertical support 45 may be fixed to the foundation concrete part 16 by placing the concrete after being fixed by welding to a reinforcing bar (not shown).

In this state, the upper stage natural stones 25 of one stage are supported by a tile t1 such as a tile and are arranged laterally on the upper rear side of the lower stage natural stones 22 and fixed by the fixed reinforcing bars 31. [ The uppermost natural stones 28 of the two stages are supported by the installation material t2 so as to be arranged laterally on the upper rear side of the first upper natural stone 25 and are fixed by the fixed reinforcing bars 32. [

Next, the lower connecting rod 35 is inserted into the left and right perforations 23 of the lower natural stones 22 disposed on the left and right sides, and the uppermost natural stones 25 and the two uppermost natural stones 28 (Not shown) are respectively installed on the left and right perforations of the left and right perforations.

Thereafter, in a state where the wire net 48 is disposed at a predetermined distance behind the lower and upper natural stones 22, 25, 28 so as to cover the entire rear area of the lower and upper natural stones 22, 25, 28, The lower support reinforcing bar 40 is passed through the wire net 48 and the front end of each lower support reinforcing bar 40 is inserted into the respective back grooves 24 to be hooked on the lower connecting rod 35, The rear end of the reinforcing bar 40 is welded to the support beam 20 in a horizontal direction.

1, the upper end supporting bars 40 'and 40' 'are attached to upper end connecting rods (not shown) inserted into upper upper natural stones 25 and 28, 40 ', 40 "are welded to the support beams 20. At this time, it is preferable that all the supporting bars 40, 40 ', 40' 'are installed horizontally. By adjusting the turnbuckles 41 provided on the supporting bars 40, 40' The installation angle and position of the lower natural stones and the upper natural stones 22, 25, and 28 can be finely adjusted.

Next, the front end of the fixed anchor 49 is fixed to the bottom natural stones and the upper natural stones 22, 25, 28 by an anchor fixing method using the fixed anchor 49, (Tinned wire) or welding.

Then, a water permeable concrete material is laid and cured in a space between the lower natural stone and the upper natural stones 22, 25, 28 and the wire net 48 to form a water permeable concrete portion 51.

As the permeable concrete material is poured and cured, the bottom natural stones and the upper natural stones 22, 25, and 28 are all combined by the water permeable concrete material, and are integrated like a lump.

Next, the three-layer retaining wall structure is completed by inserting the filled soil 60 into the space between the water-permeable concrete portion 51 and the cut slope surface 13.

In the present invention, the lower end connecting rod 35 is inserted into the left and right natural stones 22, the hook 43 of each of the supporting reinforcing bars 40, 40 ', 40' 'is hooked, Since the welding is performed on the beam 20, the construction is easier than the conventional method in which the front ends of the support members are anchored to the respective natural stones, and one lower end and the upper end connecting rods 35 are respectively arranged in left and right directions And 40 '' are connected to one lower connecting rod 35 and an upper connecting rod (not shown), respectively, by connecting the lower and upper natural stones 22, And the supporting force for supporting the natural stones is improved.

In addition, the present invention is characterized in that a water-permeable concrete part 51 is formed at the rear of the lower natural stones and the upper natural stones 22, 25 and 28, and the lower natural stones and the upper natural stones 22, 25, The supporting reinforcement rods 40, 40 'and 40' 'are structured to support the lower natural stones and the upper natural stones 22, 25 and 28, which are integrated into one body, Accordingly, even if any one of the supporting bars 40, 40 ', 40' 'is damaged, the remaining supporting reinforcing bars support the bottom natural stones and the upper natural stones 22, 25, 28 integrated into one, So that the phenomenon of separation from the retaining wall structure can be prevented.

In addition, the water-permeable concrete part 51 of the present invention not only plays the role of integrating the lower natural stones and the upper natural stones 22, 25 and 28 into a single lump, In addition, since the water-permeable concrete part 51 includes the magnesium smelting slag and the slaked lime component, the heavy metal component can be absorbed in the drained drained and drained in a state where the heavy metal concentration is reduced.

In addition, since at least one vertical support 45 is provided on the inclined support beam 20, the support beams 20 are more firmly coupled to the foundation concrete portion 16 , The lower natural stones and the upper natural stones (22, 25, 28) can be further improved.

1, a drainage channel 70 is provided in a front area of the lower natural stone 22, and a bottom portion of the water-permeable concrete portion 51 and a through-hole of a lower portion of the drainage channel are provided in the base concrete portion 16, A water channel 71 for connecting the water permeable concrete part 51 to the drain pipe 71 may be provided so that water drained through the water permeable concrete part 51 can be introduced into the drain water pipe 71. The flow path 73 may be constituted by a pipe and the flow path 73 may be formed in the base concrete part 16 by arranging the flow path 73 and installing the concrete during the construction of the base concrete part 16.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood by those skilled in the art that many changes and modifications of the present invention can be made without departing from the spirit and scope of the appended claims. Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.

11 ... ground
13 ... cut slope
16 ... foundation concrete section
20 ... support beam
22 ... bottom natural stones
23 ... left and right cloth
24 ... rear groove
25,28 ... top natural stone
31,32 ... fixed bar
35 ... bottom connecting rod
40 ... lower support reinforcement
40 ', 40''... upper support steel
41 ... turnbuckle
42 ... front reinforcing bars
43 ... ring
44 ... rear reinforcement
45 ... vertical support
48 ... wire mesh
49 ... anchor anchor
51 ... Permeable Concrete Part
60 ... Filled toe
70 ... drain
71 ... through hole
73 ... Euro

Claims (4)

In a retaining wall structure using natural stones in which a plurality of natural stones are installed in front of a cut slope and filled with fill soil between the natural stones and sliced slopes,
A foundation concrete part installed on the ground located in front of the cut slope;
A plurality of lower natural stones fixed in an upright manner to the foundation concrete part and arranged laterally adjacent to each other;
A plurality of upper natural stones stacked in a multi-stage on the upper rear side of the lower natural stones;
A fixed reinforcing bar fixing the plurality of lower natural stones and the plurality of upper natural stones to each other;
A plurality of support beams spaced rearward from the plurality of lower natural stones and the plurality of upper natural stones and installed in a state where a lower end is fixed to the foundation concrete part and spaced apart from each other in a left and right direction;
A lower connecting rod inserted into the plurality of lower natural stones so as to be pushed right and left;
An upper connecting rod inserted into the plurality of upper natural stones in a lateral direction;
A plurality of lower supporting bars installed horizontally to connect the lower connecting rod and the plurality of supporting beams,
A plurality of upper support reinforcing bars installed horizontally to connect the upper connecting rods and the plurality of support beams and installed to be spaced apart from each other;
A plurality of lower natural stones and a rear surface of the plurality of upper natural stones are spaced apart from each other by a predetermined distance;
A front anchor fixing the rear ends of the plurality of lower natural stones and the plurality of upper natural stones and the rear end thereof to the wire mesh part;
A water permeable concrete portion laid between the plurality of lower natural stones and the rear surface of the plurality of upper natural stones and the wire mesh portion to integrate the plurality of lower natural stones and the plurality of upper natural stones into one lump;
A filler filled between the water-permeable concrete part and the cut slope;
An upper end coupled to the plurality of support beams and a lower end coupled to the foundation concrete portion to improve the support force of the plurality of support beams;
A plurality of bottom natural stones formed in front of the plurality of drain areas; And
And a flow path formed in the foundation concrete part and connecting a lower end of the water-permeable concrete part and a lower one side of the drainage path,
Wherein the water permeable concrete portion comprises magnesium smelting slag and slaked lime component.
The method according to claim 1,
Each of the plurality of lower natural stones
A first left and right perforations that are punched right and left and into which the lower connecting rod is inserted; And
And a first rear groove formed to be connected to the first left and right perforations by being punched forward from the rear surface,
Each of the plurality of upper natural stones
A second left and right perforations that are punched right and left to insert the upper connecting rod; And
And a second rear groove formed to be connected to the second left and right perforations by being punched forward from the rear surface,
The front end of each of the plurality of lower support reinforcing bars is formed in a ring shape and is inserted through the first rear groove and connected to the lower connecting rod inserted in the first left and right perforations,
Wherein the front end of each of the plurality of upper support reinforcing bars is formed in a ring shape and is inserted through the second rear groove and connected to the upper connecting rod inserted in the second left and right perforations. Retaining wall structure.
3. The method of claim 2,
Wherein each of the plurality of lower support beams and the plurality of upper support beams comprises:
A hook for hooking the lower connecting rod or the upper connecting rod;
A front reinforcing bar coupled to a rear end of the loop;
A turnbuckle coupled to a rear end of the front reinforcing bar and having a length adjustable;
And a rear reinforcing bar coupled to a rear end of the turnbuckle and having a rear end welded to the plurality of support beams.
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