KR100813290B1 - Block for retaining wall - Google Patents

Abstract

A block for a reinforced earth retaining wall is provided to increase durability by coating degradation preventing paints on the front of the block and to obtain cut surface curvature correspondence by forming long pin combining grooves at the lower parts of the block. Blocks for a reinforced earth retaining wall are piled by placing connecting devices(200) and include through holes(140). Pin insertion holes(150) are formed on the blocks to insert lower pins(220) of the connecting devices. Pin combining grooves(160) have long shapes at the lower surface of the block to insert upper pins(210) of the connecting devices. The connecting devices are formed by extending the upper and lower pins to upper and lower sides of connecting pieces(230). The lower pins are two, one of lower pins short and the other one of the pins long. Recessed groove parts(170) are installed in the pin insertion holes to insert the connecting devices.

Description

Block for Retaining Wall}

1 is a schematic view showing a conventional block for reinforcement earth retaining wall

2 is a perspective view of a block of the invention

3 is a top and back view of a block of the present invention.

4 is a cutaway view of a block of the invention

5 is an example embodiment of various retaining wall angles.

6 is a perspective view showing the installation method of the geogrid

7 is a schematic view showing a zigzag masonry embodiment

8 is a cutaway sectional view of the FIG. 7 embodiment;

9 shows an example of retaining wall masonry having various curvature radii.

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

100: block 140: through hole

150: pin insertion hole 160: pin coupling groove

170: groove 200: connecting member

210,220: upper and lower pin 310: basic rubble

340: backfill reinforcement soil 350: finishing block

360: Crushed Stone 400: Geogrid

The present invention relates to a reinforcement soil retaining wall block for protecting land or incision, and more particularly, the paint for preventing degradation is applied to the front surface to have excellent durability, and a pin coupling groove in the form of a long groove is formed at the bottom thereof to provide workability and The present invention relates to a reinforcement earth retaining wall block having excellent curvature correspondence in cut surface and strong anti-deterioration paint applied to the front surface.

In general, the retaining wall refers to a wall structure that resists soil pressure and prevents soil from falling down. It is widely used to increase land use in mountainous areas and high land prices. Traditionally, many concrete retaining walls have been constructed. Because the concrete retaining walls are installed in contact with the surface of the soil to be reinforced, they are vulnerable to cracks from the inside, and have limitations such as limitations on construction height and difficulty in construction in winter. Recently, reinforcement earth retaining walls using blocks have been introduced and constructed. The reinforcement soil retaining wall block is widely used in the construction of apartment complexes, construction of road cut soils, construction for securing the stability of slopes, bridge alternate wing wall construction, and other waterways and embankments.

Recently, geogrid, geosynthetics, has been applied to soil-related fields such as soft ground reinforcement, retaining wall protection, drainage, slope stability in civil engineering and construction. Such geotextiles have advantages in that they are simple to use, easy to transport, excellent in functionality and physical properties, and economically advantageous compared to poor construction such as gravel, sand, and giants, which are conventionally used. Geosynthetic fiber, a synthetic polymer product that was developed and applied in the early 1960s, was sought to use geogrids in Korea in the 1990s, and was first applied in the design of reinforced earth retaining walls in 1993. As soft geogrids are produced in-house, the use of geogrids is being activated.

Conventional reinforcement retaining wall blocks and structures thereof are disclosed in Korean Patent No. 116843 (designated name: wall blocks and wall structures). Referring to Figure 1 in more detail, the conventional reinforced earth retaining wall block is extended rearward from both ends of the front portion 1 and the upper surface (2), the lower surface (3) and the front portion (1) having a variety of forms It consists of a block body 5 comprising a side 4. A pinhole 8 is formed on the upper surface 2, and grooves 6 are provided on the side thereof, and are assembled in the form as shown in FIG. 1 (b) using the rod-shaped fixture 7. The front part 1 may be manufactured in various forms, and if necessary, a coating material for preventing whitening, in particular, a coating material containing iron oxide may be applied. A back fill reinforcement soil is filled behind the masonry block masonry to form an inclined surface.

However, the conventional block of this type is to combine with the geogrid using a fixture (7) as a hole, there was a problem that the shear stress is locally concentrated in the concrete constituting the block, pinhole (8) or groove (6) Since the shape of is limited to the groove shape, the rotation of the block is reduced when the masonry is inconvenient that it can not make the slope of various curvature radius. In addition, in the connection between the geogrid and the fixture 7, there is a problem that a gap is opened between the lower block and the upper block as the fixture 7 rises slightly above the upper surface of the block 2. In addition, in the coating for whitening prevention applied to the entire surface, due to the price problem of the paint, the application is limited to red by iron oxide, so there was a disadvantage that it is impossible to apply a variety of colors.

The present invention is to solve the above problems, the anti-deterioration paint of the present invention is applied to the front surface is excellent in durability, and the long groove-shaped pin coupling groove is formed at the bottom is excellent in workability and curvature correspondence of the cut surface, shear An object of the present invention is to provide a block for reinforcing soil retaining wall coated with a deterioration-resistant pate that is also resistant to stress, and a method of forming the same.

In order to achieve the above technical problem, the present invention forms a retaining wall by being laminated to each other via a connecting member, and in a block for reinforcement soil retaining wall including a through hole, at least two pin insertion holes are inserted into the upper surface of the block so that the pins of the connecting member are inserted. Two or more flocked on both sides; The lower surface of the block provides a block for reinforcement soil retaining wall, characterized in that the pin coupling groove is provided in the form of a long groove penetrating both sides so that the pin of the connecting material is inserted.

Here, the connecting member is configured to extend the upper pin and the lower pin to the upper side and the lower side of the joint piece, the lower pin is at least two, the pin insertion hole of the upper surface of the block is provided with a recess for inserting the joint piece It is preferable.

In addition, the width of the pin coupling groove is more preferably larger than the pin thickness of the connecting material.

In addition, the pin coupling groove is more preferably provided in front of the position of the forefront pin insertion hole.

The present invention also provides a reinforcing cylinder retaining wall block having a deterioration prevention paint applied to the entire surface of the block.

In addition, it is more preferable that the paint contains a color paint.

In addition, the spacing of the pin insertion space is preferably such that the pin of the connecting material can be fitted in various forms.

2, 3 and 4, a block 100 of the present invention is described. In the drawings, parts that are not essential are not shown in order to clarify the understanding of the technical gist of the present invention, and the omitted parts are in accordance with a conventional reinforced earth retaining wall block structure.

Block 100 of the present invention is made of high-strength concrete so as to have a trapezoidal body 110 having a larger front end width than the rear end as viewed from the top. The body 110 is not limited to a trapezoid and may be in various forms as necessary. However, in order to vary the radius of curvature of the retaining wall incision surface as shown in FIG. 9, the width of the rear end portion is smaller than the width of the front end portion. desirable. The front and rear ends of the body 110 are provided with front and rear wings 120 and rear ends 130 to maintain rigidity of the blocks, respectively. The through hole 140 is formed in the central portion of the body. Two or more through-holes 140 are preferably provided in an appropriate size in order to reduce the weight and material cost while securing the rigidity of the block. The through-hole 140 is filled with crushed stone as shown in Figure 4 during the construction of the retaining wall is further increased the rigidity of the retaining wall.

On the upper surface of the front end of the body 110, pin insertion holes 150 into which the lower pins 210 of the connection member 200 are inserted are formed at both sides. Two or more pin insertion holes 150 are formed at one side in accordance with the number of the lower pins 210, but the position of the upper pin 220 of the connection member 200 may be changed by a combination of various pin insertion holes 150. It is preferable to form four or more in a lattice form so that it may be. The spacing between each pin insertion hole 150 should also be appropriately selected so that the lower pin 210 of the connecting member 200 can be fitted in as many combinations as possible. At this time, when the pin insertion hole 150 of the block 100 increases, it is difficult to make it into the block made of cement, and there is a high possibility that the portion between the pin insertion holes 150 is broken. Therefore, the pin insertion hole (the area indicated by four in the figure) of the block 100 into which the lower pin of the connecting member 200 is inserted is formed by the pin attached to the mold.

2 and 3 show an embodiment in which four pin insertion holes 150 are formed. Grooves 170 are formed in which the joint pieces 230 of the connection member 200 are seated to the upper portions of the pin insertion holes 150 formed at both sides. When the connecting member 200 is fitted to the body 110 of the block 100 by the recess 170, the joint piece 230 of the connecting member 200 does not protrude to the upper surface of the body 110. Therefore, even though the geogrid 400 is sandwiched between the blocks 100 by the connecting member 200, the lifting phenomenon does not occur between the upper block 102 and the lower block 101.

On the lower surface of the front end of the body 110, the pin coupling groove 160 into which the upper pin 220 of the connecting member 200 is fitted is formed long. As can be seen in Figure 3 (b) the pin coupling groove 160 is preferably penetrated from side to side. Unlike conventional blocks, the pin coupling groove 160 is formed to have a long degree of freedom in block masonry. Therefore, as shown in FIG. 9, the radius of curvature of the reinforced soil retaining wall may be variously formed. The above advantages will be described later in detail. As can be seen in Figure 4, the formation position of the pin coupling groove 160 is determined in consideration of the overall shape of the connecting member 200, but it is better to be ahead of the position of the foremost pin insertion hole 150. On the other hand, the width t1 of the pin coupling groove may be larger than the size t2 of the pin insertion hole 150. In the present invention, while the size t2 of the pin insertion hole 150 is 20 mm, the width t1 of the pin coupling groove 160 is 30 mm to allow a margin of 10 mm. Since the relative front and rear positions of the upper and lower blocks can be changed by the margin m, various angles can be formed. In addition, as shown in Figure 9 by the margin (m) it is possible to form a variety of radius of curvature.

The front surface 180 of the body 100 of the block 100 is formed to have a vertical comb pattern. The shape of the front surface 180 may be changed in various ways according to aesthetic, functional needs or the request of the orderer. Deterioration prevention paint is applied to the front surface 180 of the block 100. Since the front surface 180 of the reinforced earth retaining wall block is directly exposed to harsh environments such as sunlight, rain, snow, dust, carbon dioxide, and temperature and humidity changes, deterioration progresses gradually with age. Therefore, if the exposed block surface is left as it is without surface protection, the concrete surface is stained with rainwater intrusion and dust adhesion, so a surface protection finish is necessary to prevent this. As a surface protection finish of a general exposed block, a silicone-based impregnated surface finish or acrylic, urethane, and fluorine-based water repellent paints are used, but the paints have a low surface repellency effect with age, thereby deteriorating a concrete surface protection effect. In the present invention, the surface protection agent for preventing the neutralization of the concrete structure disclosed in Patent Registration No. 10-0565268 is used as a paint.

The paint is to use a polymer polymer prepared by solution polymerization of a polymer monomer using an alkoxysilane compound as a solvent as an active ingredient of the surface coating agent for preventing concrete neutralization. Accordingly, the paint is eco-friendly because it does not contain harmful substances to the human body, and it is possible to coat on the concrete surface in the wet state, easily penetrate into the concrete, and harden by the reaction with the concrete after infiltration to increase the surface strength of the concrete. Not only that, but also excellent resistance to acid and salt.

In addition, the paint is preferably a color paint.

The connecting member 200 of the present invention will be described with reference to FIGS. 2 and 4. The connecting member 200 is formed by extending the upper pin 220 and the lower pin 210, respectively, up and down of the joint piece 230 fitted into the recess 170 of the block 100. The lower pin 210 is two and the upper pin 220 is one, one of the two lower pins 210 is preferably shorter than the other one. Therefore, since the front and rear of the connection member 200 is easy to distinguish, the operation of inserting the connection member 200 in the masonry process becomes much simpler. The connection member 200 is preferably manufactured using nylon fiber capable of withstanding shear stress due to earth pressure. At this time, the shear strength of the nylon fiber is about 300kgf / cm ² It is enough. Connection block for connecting the conventional block 100 should be prepared in various shapes for changing the relative position between the blocks, in the present invention, a plurality of pin insertion holes 150 to change the relative position between the blocks in various ways It allows only one or two connecting members (200) shape is sufficient.

Next, various retaining wall masonry angles implemented from the present invention will be described with reference to FIGS. 4 and 5. The lower block 101 is compacted and the upper block 102 is stacked thereon, and the connecting member 200 is interposed between the upper block 102 and the lower block 101. As shown in FIG. 4, the upper block 102 has a lower block 101 due to a difference m between a thickness t2 of the upper pin 220 of the connecting member 200 and a width t1 of the pin coupling groove 160. Can be pushed back a certain distance from Therefore, when the block 100 is sequentially stacked and finally the reinforcement soil retaining wall is completed, an incision surface is formed at a predetermined angle as a whole. On the other hand, as shown in FIG. 5, the angular angle may vary depending on the insertion method of the connecting member 200. When the upper pin 220 is changed to face the rear side as shown in FIG. 5 (b) as shown in FIG. 5 (a), the upper block 102 may be disposed to be retracted more. This results in a larger retaining wall masonry angle. As such, it is possible to construct the reinforcing soil retaining wall at various masonry angles by various combinations of the connection member 200, the pin insertion hole 150, and the pin coupling groove 160 of the present invention.

Figure 7 is a schematic diagram showing a zigzag embodiment of the present invention, Figure 8 shows a cutaway cross-sectional view. Referring to the construction method of the reinforced earth retaining wall using this as follows. First, after the excavation of the site where the reinforcement soil retaining wall is to be installed, the foundation is laid using the basic rubble 310. Next, cast the foundation concrete 320 without reinforcement on the foundation rubble 310 so that the block 100 installed at the bottom is not separated from the front, and apply mortar 330 thereon. The upper surface of the concrete 320 is made flat. The lowermost block 100 is arranged with a radius of curvature determined so that the locking jaw of the foundation concrete 320 is caught over the mortar 330 (see FIG. 9). Crushed stone is filled into the through hole 140 of the lowermost block 100. Next, the connecting member 200 is inserted into the pin insertion hole 150 of the lowermost block 100. The connecting member 200 is one of the lower pins 210 is set differently in length, so it is easy to insert and there is no mistake of directional mistake. Subsequently, as shown in FIG. 7, the block 100 is zigzag-shaped onto the lowermost block 100. The upper pin 220 of the connecting member 200 is fitted into the pin coupling groove 160 of the upper block 102 to be assembled. As described above, the pin coupling groove 160 has a long hole shape penetrating through the left and right. It is possible to assemble without regard to the left and right rotation angle, and it is easy to work with masonry. Whenever one layer of masonry is completed, the backfill reinforcement soil 340 is put into the back of the block layer and proceeds to chop. On the other hand, one geogrid is inserted in approximately two block layers. Geogrid is inserted into the upper pin 220 of the connecting member 200 is cut to a suitable length after all the connecting member 200 is inserted into the lower block 101 as shown in FIG. Finishing block 350 may be stacked in the block 100 stacked on the top of the block after the continuous masonry finish.

Reinforcement earth retaining wall block of the present invention is a deterioration prevention paint is applied to the front surface 180 of the block 100, even if the retaining wall surface is exposed to harsh environments such as sunlight, rain, snow, dust, carbon dioxide or temperature and humidity changes It has the advantage of not being easy. In addition, the front surface 180 can be made in various colors in response to the needs of consumers, and the retaining wall surface is aesthetically beautiful.

9 shows an example of retaining wall masonry of various curvature radii. In the figure, the solid solid line indicates the lower block 101 and the dim solid line shows the upper block 102. Looking at each of the detailed drawings, it can be seen that the upper pins 220 of the connection member 200 are all inserted into the pin coupling grooves 160 of the upper block 102 even under various curvature radii. This corresponds to a technical effect that could not be implemented in the conventional reinforced earth retaining wall block.

As described above, the reinforcement earth retaining wall block to which the anti-deterioration paint of the present invention is applied has a property that the retaining wall surface is not easily deteriorated even when exposed to the harsh environment. Aesthetically pleasing retaining walls are possible.

In addition, since the connecting member pin coupling groove provided on the lower surface of the block has a long groove shape, it is possible to obtain a retaining wall surface having various curvature radii.

In addition, since two or more pin insertion holes for inserting the connecting material are provided in the block upper surface, the retaining wall can be formed at various angles according to the inserting direction of the connecting material, thereby improving the workability.

In addition, since the connecting material connecting the upper block and the lower block is provided with a plurality of unlike the prior art has a strong advantage in the shear stress between the blocks by the earth pressure.

Since the pin insertion hole is made in advance in the recycled rubber composed of waste tires, it is used to insert the block when curing the block. Therefore, it is possible to solve manufacturing problems such as breakage of the block when forming the pin insertion hole in the concrete block. In addition, there is an advantage that the functionality is also excellent.

Claims (8)

In the block for reinforcement soil retaining wall including a through hole 140 by forming a retaining wall by being laminated to each other via a connecting member 200, Pin insertion hole 150 is formed on the upper surface of the block 100 so that the lower pin 220 of the connecting member 200 is inserted, but at least four or more so as to change the position of the upper pin 220 of the connecting member 200. It is provided in both sides in the form of a grid, the lower surface of the block 100 is provided in the form of a long groove penetrating both sides so that the pin coupling groove 160 is inserted into the upper pin 210 of the connection member 200, The connecting member 200 is configured by extending the upper pin 210 and the lower pin 220 to the upper side and the lower side of the joint piece 230, the lower pin 220 is two and one is short and easy to distinguish back and forth The other one is long, the block for reinforcement soil retaining wall, characterized in that the pin insertion hole 150 of the upper surface of the block 100 is provided with a groove portion 170 that can be inserted into the joint piece 230. delete According to claim 1, wherein the width of the pin coupling groove is reinforced earth retaining wall block, characterized in that greater than the pin thickness of the connecting member. According to claim 1, wherein the pin coupling groove is reinforced earth retaining wall block, characterized in that provided in front of the position of the forefront pin insertion hole. delete delete delete delete

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