KR100822265B1 - Revetment structure using natural stones and method for constructing revetment structure using the same - Google Patents

Abstract

A native rock retaining wall structure and a construction method of a native rock retaining wall structure are provided to prevent the breakdown and overturn of a retaining wall by supporting native rocks strongly without a welding process, connecting native rocks strongly using a resistance plate and a strap type fiber reinforcement material and improving the degree of compaction for back-filling soil easily, and to heighten constructability and to reduce an economical burden by reducing the number of components. A native rock retaining wall structure includes many native rocks(10) installed to erect, a resistance plate(20) installed to be located at the back part of the native rock by many anchor pins and connected with a strap type fiber reinforcement material to support native rocks and to prevent the native rocks from overturning, an I-bolt(30) inserted into a fastening hole of a wing part of the resistance plate and coupled to the resistance plate by a nut, an I-nut(40) coupled to a set anchor(11) installed at the back part of the native rock, and a strap type fiber reinforcement material(50) inserted to rings of the I-bolt and the I-nut, and connecting and supporting the native rock and the resistance plate to reinforce the ground and to increase the connecting strength of the native rocks and the ground with frictional force of the strap type fiber reinforcement material. A construction method of a native rock retaining wall structure comprises the steps of: pit-excavating the ground where native rocks are to be piled and tamping the ground; placing reinforced concrete foundation on the tamped ground; sitting many native rocks to the reinforced concrete foundation; back-filling soil to a set anchor integrated to the back part of the native rock and an I-nut coupled to the set anchor; installing many resistance plates to the back-filled soil at the back part of the native rock at a certain distance; installing a strap type reinforcement material to reciprocate between a ring of the I-nut of the native rock and a ring of the I-bolt of the resistance plate; forming the bearing ground of the native rocks to be located at the upper part by back-filling soil at a portion of the back part of the native rocks to bury the I-nut of the native rock and the strap type fiber reinforcement material connected to the I-nut; locating native rocks on the bearing ground, and back-filling soil to the set anchor and the I-nut installed at the back part of the native rocks; and repeating above mentioned steps to pile up native rocks in multi-stage.

Description

Natural stone retaining wall structure and its construction method {REVETMENT STRUCTURE USING NATURAL STONES AND METHOD FOR CONSTRUCTING REVETMENT STRUCTURE USING THE SAME}

1 is an exemplary view showing a configuration according to the present invention

2 is an exemplary view showing a configuration of a resistance plate according to the present invention

Figure 3 is an exemplary view showing a connection between the band-shaped fiber reinforcement and the resistance plate according to the present invention

Figure 4 is an illustration showing the configuration of the strip-shaped fiber reinforcement according to the present invention

Figure 5 is an exemplary block diagram showing a retaining wall construction according to the present invention

* Explanation of symbols for main parts of the drawings

(10): natural stone (20): resistance plate

21: support portion 22: wing portion

(23): Fastening hole (30): Eye bolt

(40): Eye nut (50): Band-shaped fiber reinforcement

(50a): Separate strip type fiber reinforcement (53): Incision

60: nut 70: anchor pin

71: first anchor pin 72: second anchor pin

80: reinforced concrete foundation 81: reinforced concrete foundation

(82): support bar (100): backfill

(110): support base

The present invention relates to a natural stone retaining wall structure and a construction method thereof, and to a natural stone retaining wall structure and a method of constructing the natural stone retaining wall in multiple stages, solidly supporting the natural stone, and facilitating a compaction for the backfill soil. .

In general, the retaining wall structure is designed to prevent the collapse of sediments or cuts in roads, rivers, etc., and is constructed of bricks, concrete, concrete panels, concrete blocks, etc. Retaining wall structures of materials are widely used.

However, the retaining wall of the concrete material as described above gives a sense of discomfort due to the color and uniform form peculiar to the concrete, it is a case that spoils the natural landscape. In particular, when concrete retaining walls are installed on slopes and cutouts of common living complexes and public facilities such as apartment complexes and parks, problems that arise from the taste of modern people seeking a natural environment for living are occurring.

In order to solve the problem of the concrete retaining wall, the natural stone is used to install the retaining wall, that is, the front surface of the retaining wall, that is, the front of the landscape wall, such as a flower bed. By filling up the backing soil in the back part and pledging it, the natural stone retaining wall is being constructed so that the natural stone is located on the front surface exposed to the outside.

The natural stone retaining wall structure and construction method as described above has been registered in Korea Patent No. 10-0296018, which is a plurality of decorative stones made of natural stone arranged side by side so that the front surface is exposed to the outside in the form standing on the ground, the decoration It is composed of a support stone disposed behind the stone, and a plurality of connecting anchors, one end of which is inserted a predetermined depth into the support stone, the other end of which is inserted into the decorative stone by a predetermined depth to connect the decorative stone and the supporting stone, wherein the decorative stone and the supporting stone are horizontal It is connected by connecting anchor and inclined connecting anchor.

Such conventional natural stone retaining wall has a problem that the decorative stone located in the front by the horizontal and inclined connection anchor is supported, it is not possible to carry out the compaction process for the backfill soil filled in the rear of the decorative stone.

In other words, the conventional natural stone retaining wall is supported by decorative stones connected to the support stone by the connecting anchor, the soil located in the rear of the decorative stone corresponds to the backfill soil rather than the backfill soil, the relative movement of the soil is increased, thereby The phenomenon that the retaining wall is conducted may occur.

In addition, the conventional natural stone retaining wall is a decorative stone and the connection anchor is connected to each other by welding, but the welding joint has a strong characteristic in the tensile strength, but has a problem that is weak in bending strength and torsional strength, when embedded for a long time There are various problems such as corrosion caused by moisture.

The present invention is to solve the above problems, the object of the natural stone retaining wall structure, the natural stone retaining wall structure and the natural stone retaining wall structure that can be firmly connected and secured, the compaction of the backfill soil can be easily carried out to 85% or more It is to provide a construction method.

Still another object of the present invention is to firmly support natural stone without welding, thereby preventing destruction and fall of the retaining wall due to corrosion of the welded portion.

Another object of the present invention is to prevent the fall of the natural stone retaining wall structure through the solid connection support of the natural stone by the resistance plate and the strip-shaped fiber reinforcement and the compaction of the backfill soil.

Another object of the present invention is to support the natural stone firmly by the retaining wall support and the band-shaped fiber reinforcement, it is possible to easily compact the backing soil can improve the workability, and eliminate the economic burden due to the reduction of the number of parts To provide natural stone retaining wall structure and its construction method.

1 is an exemplary view showing a configuration according to the present invention, Figure 2 is an exemplary view showing a configuration of the resistance plate according to the present invention, Figure 3 is an illustration showing a connection relationship between the strip-shaped fiber reinforcement and the resistance plate according to the present invention. Figure 4 shows an exemplary view showing the configuration of the band-shaped fiber reinforcement according to the present invention, the present invention is a natural stone retaining wall structure, a plurality of natural stone 10 installed in the standing form, and the rear of the natural stone A resistance plate 20 embedded in the resistor plate 20, an eye bolt 30 coupled to the nut 60, and an eye nut 40 screwed to a set anchor installed at the rear of the natural stone; Is inserted through the ring of the eye bolt and the eye nut is to include a band-shaped fiber reinforcement 50 for supporting the natural stone and the resistance plate.

The natural stone 10 includes all kinds of stones that can be obtained in a natural state such as natural stone, such as mountain stone, analysis, steel stone, processed natural stone.

The resistance plate 20 is to prevent the fall by supporting the natural stone by the connection of the band-shaped fiber reinforcement, as shown in Figures 2 and 3, the back-filled soil is located inside to bend to improve the supporting force It consists of a support portion 21 and the wing portion 22 is formed integrally at both ends of the support portion and the eye bolt is nut-coupled, the overall planar shape is to have a hat shape having a plurality of bends. .

The resistance plate 20 configured as described above is fixed by a plurality of anchor pins 70. That is, the first anchor pin 71 is installed at the connecting portion of the wing and the support, and the second anchor pin 72 is installed at the bent portion of the support. In this case, the first anchor pin 71 and the second anchor pin 71 are provided. The anchor pins 72 are respectively installed so as to be positioned at positions opposite to each other with respect to the resistance plate 20, and the resistance plate 20 is provided by the first and second anchor pins 71 and 72 installed. The position of is fixed.

In addition, the resistance plate 20 may be fixed by a method of installing the first and second anchor pins 71 and 72 on the backfill soil first, and then installing the resistance plate 20 thereto. That is, the resistance plate 20 and the anchor pin 70 may be formed integrally, but may be separately installed.

In addition, the wing portion 22 is formed integrally connected to both ends of the support portion is formed to be located on the same plane, the fastening hole through which the eye bolt 30 is inserted through one side of the wing portion 22 ( 23) are formed respectively.

The eye bolt 30 is inserted into the fastening hole 23 of the resistance plate wing part is fixed to the resistance plate 20 by nut coupling, and has a ring on the head.

The eye nut 40 is screwed to the set anchor 11 is integrally installed on the back of the natural stone, it has a ring on the head.

The band-shaped fiber reinforcement 50 is a polyethylene coating based on a polyester yarn, serves as ground reinforcement, and increases the connection strength between natural stone and the ground by the friction of the band-shaped fiber reinforcement. In addition, the strip-fiber reinforcing material is preferably to use a separate strip-fiber reinforcing material (50a), the material is satisfactory if it does not corrode, and is not necessarily limited to the polyethylene coated with a polyester yarn as a base material.

The separate strip-shaped fiber reinforcement (50a) is formed so that the two ends of the strip-shaped fiber reinforcement is connected to each other so as to be separated, as shown in Figure 4, one side of the strip-shaped fiber reinforcement 51 and another strip-shaped fiber The reinforcing material 52 is provided integrally with the cutout 53 and is easily separated into two strip-shaped fiber reinforcements 51 and 52 by the cutout 53, as shown in FIG. 3. The two strip | belt-shaped fiber reinforcement materials 51 and 52 are piled up around the part 53, and can be used.

Referring to the construction method of the natural stone retaining wall using the present invention configured as described above are as follows.

Figure 5 is a block diagram showing the retaining wall construction according to the present invention, the excavation step (S100) for compacting the ground after digging the ground of the natural stone stacking place, and reinforce the concrete based on the ground ground The foundation stage (S200), and the natural stone placement step (S300) for arranging a plurality of natural stones on the foundation of reinforced concrete, and the back anchor to the back of the set anchor and integrally screwed in the nut nut installed on the back of the natural stone Step (S400), and the resistance plate installation step (S500) of fixing the plurality of resistance plates to maintain a predetermined distance in the back-filled earth and sand of the natural stone, and the eye nut ring and the resistance plate of the plurality of natural stones A step of installing a strip-shaped fiber reinforcement to install and fix the strip-shaped fiber reinforcement to reciprocate the eye bolt ring (S600), the eye nut of the natural stone and the band-type connected thereto A support base forming step (S700) of forming a support base of a natural stone to be located on the back by filling a rear portion of the natural stone so that the fiber reinforcement is embedded, and placing another natural stone on the formed support base, the set anchor installed on the back of the natural stone. And re-filling back to the bottom of the eye nut (S800), and repeating the multiple-stage stacking of natural stones by repeating the band-shaped fiber reinforcement step, support base forming step, and back-filling step on the natural stone located above. The construction step (S900) through the natural stone retaining wall is to be constructed.

The natural stone arrangement step (S300) is to place the basic natural stone (10a) located at the bottom of the retaining wall when the construction of the multi-stage, is adjusted by adjusting the angle so that the bottom is fixed integrally to the cast concrete structure (80). At this time, the basic natural stone (10a) is adjusted to maintain the upright state, by connecting the back of the basic natural stone by the reinforcing bars 81 and the support steel rods 82 of the reinforced concrete concrete to firmly fix the position of the basic natural stone Can be.

At this time, a set anchor 11 is installed on the rear surface of the basic natural stone 10a, and an eye nut 40 is screwed to the set anchor 11 to be integrally installed.

The backfilling step (S400) is after laying the soil to about 20 ~ 30 ㎝ thickness so that the earth to the bottom of the set anchor (11) and the eye nut (40) coupled to the back of the natural stone is located, and increase the bearing capacity of the ground and In order to prevent settlement, the compaction equipment such as compactors and rollers are compacted. When the supporting steel rods 82 are installed in the basic natural stone, the backing steels 100 are filled so that the supporting steel rods 82 are embedded. At this time, the basic natural stone (10a) is fixed to the position by the base concrete or the foundation concrete and the supporting steel bar, but the base reinforced concrete and the supporting steel rods are all buried by the backfill, so that interference does not occur when compacting, so Therefore, the compaction required for the retaining wall construction can be carried out a layer compaction of 85% or more.

The resistance plate installation step (S500) is to fix the resistance plate 20 to the back-filled soil by a plurality of anchor pins 70, the eye bolt 30 installed on the resistance plate to expose the first, 2 The resistance plate 20 is provided by the anchor pins 71 and 72. At this time, the resistance plate 20 is installed while maintaining a predetermined distance to the rear of the natural stone to be located between the natural stone and the natural stone.

The eye bolt 30 is a body having a thread is inserted into the fastening hole 23 formed in the resistance plate so that the ring formed in the head toward the rear of the natural stone 10, the body through the resistance plate fastening hole 23 The eye bolt 30 and the resistance plate 20 are integrated by tightening the nut 60. At this time, when the epoxy resin is applied to the nut 60 and the body of the eye bolt 30 fastened thereto, the movement of the nut is prevented, so that the nut is separated.

Since the specifications of the distance relationship between the natural stone and the resistance plate, the first and second anchors, the thickness and the size of the resistance plate, etc. are determined by a conventional structural calculation, a detailed description thereof will be omitted.

The strip-shaped fiber reinforcement step (S600) is to support the natural stone firmly by connecting the eye nut 40 of the natural stone and the eye bolt 30 of the resistance plate with a strip-shaped fiber reinforcement 50, a plurality of natural stone and the resistance plate The strip-shaped fiber reinforcement is reciprocally connected in a zigzag shape to be connected to each other, or the natural stone and the resistance plate are connected to each other in a square shape.

That is, the strip-shaped fiber reinforcement 50 is connected in a zigzag shape such that a plurality of natural stones and resistance plates are alternately connected to each other in series, such as natural stone-resistance plate-natural stone-resistance plate, or resistance plate-natural stone-natural stone-resistance. Like a plate, the installed strip-shaped fiber reinforcement may be installed to be connected in a square shape. The belt-shaped fiber reinforcement connected as described above is installed to be in close contact with the back-filled ground.

At this time, when using a separate strip type fiber reinforcement 53 as the strip type fiber reinforcement 50, the split type strip type fiber reinforcement 50a is inserted into the eye bolt and the eye nut, the incision part of the middle portion 53 Since it is penetrated through the insertion, it improves the tensile force (supporting force) for the connection part between the eye bolt and the eye nut ring, and maintains the state of being stretched except for the connection part with the eye bolt and the eye nut ring. At the time of being filled up in the backfilled soil, it is buried in an expanded state, so the frictional force with the backfilled soil is increased.

The support base forming step (S700) is to form a support base 110 of the natural stone located in the upper part by back-filling a part of the rear part of the natural stone located at the bottom of the multi-stage stacking of the natural stone, the band-shaped fiber reinforcement (50) In the back of the natural stone is installed so that the tension, the portion between the natural stone and the resistance plate located in the lower portion so that the eye nut and the strip-shaped fiber reinforcement is embedded. At this time, the height of the portion to be filled back is adjusted according to the installation position of the natural stone (10b, 10c) located in the upper portion. This support base forming step is to prevent the settlement of the natural stone (10b, 10c) to be located at the top and thereby to prevent the fall of the retaining wall, through the partial backfill can further solidify the support base more firmly .

The backfilling step (S800) is a stack of natural stone by forming the support base 110 in the upper and lower multi-stage, and then set anchors installed on the rear of the natural stone (10b, 10c) located in the upper and the child coupled thereto The soil is laid 20 ~ 30cm thick so that the soil is located up to the bottom of the nut, and then compacted with compactors and compactors to prevent the ground strength increase and settlement. At this time, the compaction is to perform a compaction of 85% or more compaction.

The repeating step (S900) is to install a tension-shaped fiber reinforcement in the natural stone located in the upper portion, and to form a support base of another natural stone to be placed in the upper part in the back of the natural stone, and then backfilled again to solidify the natural stone Support.

The present invention is a natural stone is laminated in multiple stages by such repeated construction is to be able to build a solid natural stone retaining wall.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention is to connect the natural stone and the resistance plate by the eye bolt and the eye nut and the band-shaped fiber reinforcement, which eliminates the need for welding work, thereby improving the assemblability, constructability, and standardized eye bolt and eye nut and Connection by simple parts can improve productivity and facilitate part procurement.

In addition, the present invention is to support the natural stone is connected to the resistance plate by the band-shaped fiber reinforcement, the fiber reinforcement is to be installed in close contact with the back ground and tension, so that the interference phenomenon due to the support of the natural stone during back filling In this way, backfilling can be performed with more than 85% of stratification.

In addition, the present invention is to support the natural stone firmly without the occurrence of a welded portion, it is possible not only to solve the reduction in bearing capacity due to the welded portion having a weak strength for twisting or bending angle, but also corrosion and Any problems caused by the transformation can also be solved.

In addition, the present invention can be installed by folding the belt-shaped fiber reinforcement for the site where the stress is concentrated, such as the eye bolt / nut ring, thereby improving the tensile strength, it is possible to firmly connect the natural stone and the resistance plate.

In addition, the belt-shaped fiber reinforcement of the present invention is to be embedded while maintaining the unfolded state in the back filling, thereby increasing the frictional force of the belt-shaped fiber reinforcement, thereby increasing the connection strength between the natural stone and the ground has many effects.

Claims (7)

Natural stone retaining wall structure; A number of natural stones installed in a standing form, A resistance plate fixed to the earth and sand backfilled with ancafin to be located at the rear of the natural stone; A plurality of eye bolts nut-coupled to the resistance plate; An eye nut screwed into the set anchor installed at the rear of the natural stone, Inserted through the ring of the eye bolt and the eye nut includes a band-shaped fiber reinforcement for supporting the natural stone and the resistance plate, The resistance plate is composed of a support portion having a bent to improve the supporting force is located in the back-filled soil inside, and a wing portion which is formed integrally at both ends of the support portion and the eye bolt is nut-coupled, the overall planar shape is a plurality of bends Natural stone retaining wall structure comprising a hat shape having a. The method of claim 1; The strip-shaped fiber reinforcement is a natural stone retaining wall structure, characterized in that the separate strip-shaped fiber reinforcement. delete In the construction method of natural stone retaining wall structure; Demolition step of digging the ground of natural stone stacking place and then compacting the ground, A foundation step of placing the foundation reinforced concrete on the ground; Natural stone stone step of placing a plurality of natural stones in the foundation of reinforced concrete, Back filling step of back-filling to the bottom of the set anchor and integrally screwed eye nut installed in the back of the natural stone, Resistor plate installation step of maintaining a predetermined distance in the back-filled earth and sand of the natural stone, and fixedly installed by the anchor pin a plurality of resistance plates to the eye bolt exposed to the rear of the natural stone, Installing the band-shaped fiber reinforcement to install and fix the band-shaped fiber reinforcement to reciprocate the eye nut ring of the plurality of natural stone and the eye bolt ring of the resistance plate, A support base forming step of forming a support base of the natural stone to be located on the upper part by back-filling the rear portion of the natural stone so that the eye nut of the natural stone and the band-shaped fiber reinforcement connected thereto are embedded; Positioning another natural stone on the formed support base, and back-filling step of back-filling back to the bottom of the set anchor and eye nut installed on the back of the natural stone, Natural stone retaining wall structure construction method characterized in that consisting of a repeating step of laminating the natural stone in multiple stages by repeating the band-shaped fiber reinforcement installation step, the support base forming step, the back-filling step a number of times to the natural stone located on the upper. The method of claim 4; The strip-shaped fiber reinforcement is a natural stone retaining wall structure construction method, characterized in that the separate strip-shaped fiber reinforcement. The method of claim 4 or 5; When the band-shaped fiber reinforcement is inserted into the eye bolt and the eye nut ring, it is folded around the incision part of the middle part and inserted and connected to the eye bolt and the eye nut ring, and all but the connection parts of the eye bolt and the eye nut ring. The method of constructing a natural stone retaining wall structure, characterized in that when the backfilled to maintain the expanded state, in the backfilled soil to be buried in an expanded state. The method of claim 4 or 5; The strip-shaped fiber reinforcement is a natural stone retaining wall structure construction method characterized in that the plurality of natural stone and the resistance plate is connected reciprocally in a zigzag shape to be connected to each other, or the natural stone and the resistance plate is connected to each other in a square shape.

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