KR200245226Y1 - Block for retaining wall - Google Patents

Abstract

A retaining wall block 200 and a connection block 200 used to construct a sidewall of a dike, breakwater, road or the like are disclosed. The connection block 200 includes a lower support 210 and an upper support 220 bent a predetermined length from the lower support. And, the retaining wall block is connected to the head 110, the back of the head 110, the insertion hole 122 is formed so that the lower support can be fitted and accommodated on the side so that the upper support 220 can be received A neck portion 120 having a groove 123 is formed, and a body portion 130 connected to the rear surface of the neck portion 120. Here, the upper support 220 may be bent to one side, the rear contact surface of the insertion hole 122 is located on the same plane and substantially the rear surface of the receiving groove. Accordingly, it is possible to easily perform vertical construction and retreat construction using one same type of retaining wall block and one same connection block.

Description

Reinforced Earth Retaining Wall Block {Block for retaining wall}

The present invention relates to a block, and more particularly to a retaining wall block used to build sidewalls of embankments, breakwaters or roads.

In general, soils formed on embankments, breakwaters or roadside walls are easily sheared or easily deformed by external pressure. Thus, the retaining wall structure is constructed using blocks made of stone or concrete on the side walls of the embankment or the like to prevent deformation or collapse of the side walls of the embankment or the road due to earth pressure. Such a retaining wall structure includes a reinforced earth retaining wall method, a gravity type or a pin type or anchor type method.

Reinforcement soil retaining wall method is to form soil by only reinforcing action of reinforcing fiber, and this method receives all the earth pressure from reinforcing fiber, so most of construction cost is occupied by reinforcing fiber cost, and the retaining wall block has structural mechanics function. There is a limit to exist as a factor for aesthetics that is rarely seen.

Gravity type is a method of restraining the block and the reinforcing fiber by the weight by increasing the size of the retaining wall block, it is not only inconvenient to work because of the large weight, but also insufficient binding force.

In the case of a fin block, two small holes are formed in the head of the retaining wall block, and a pin is inserted into the retaining wall block to connect adjacent retaining wall blocks so as to support the pin block. It is small and difficult to work with, the resistance to external earth pressure is very weak, and furthermore, the pin is broken or cracked by the earth pressure, causing the pin to break away.

In addition, in the case of an anchor type block, an anchor type protrusion is formed in the retaining wall block, and blocks adjacent to the anchor type protrusion are connected, but the yanker itself is made of a small protrusion, which may be pulled out, and an anchor type protrusion when transporting. Is broken, there is a limit that can not be made at the same time vertical and retracting construction with only one type of retaining wall block.

The present invention has been made to solve such a problem, the object of the present invention is to provide a retaining wall block and a connection block that can be more simple construction and shorter working time.

Another object of the present invention is to provide a retaining wall structure in which a retreating shaft and a vertical shaft are simultaneously constructed using one same type of retaining wall block and one same type of connection block.

1 is an exploded perspective view illustrating a connection block and a retaining wall block used in a retaining wall block structure as an embodiment according to the present invention;

FIG. 2 is a perspective view illustrating a vertically constructed state using the retaining wall block and the connection block of FIG. 1,

3 is a perspective view showing a retracted state using the retaining wall block and the connecting block of FIG.

4 is a cross-sectional view taken along the line I-I of FIG.

5 and 7 are separated perspective views showing the retaining wall block and the connection block as another embodiment according to the present invention, and

FIG. 6 is a perspective view illustrating a retracted state using the retaining wall block and the connection block of FIG. 5.

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

100,300,500: retaining wall block 110: head

112,132: Filling hole 114: Charging groove

116: charging protrusion 120: neck

122: insertion hole 122: seating groove

123: receiving groove 130: the body

200,400,600: Connection block 210,410,610: Lower support

220,420,620: upper support 222: support protrusion

In order to achieve the above object, a connection block having a lower support and an upper support bent a predetermined length from the lower support; And a retaining wall having a head, a neck connected to the back of the head and having an insertion hole formed therein to allow the lower support to be fitted, and a neck having a receiving groove formed at a side to accommodate the upper support, and a body connected to the back of the neck. A retaining wall structure comprising a block is disclosed. Here, the receiving groove may be formed by recessing the neck inwardly between the head and the body portion, the head and the body portion may be connected to step with the neck, the insertion hole is the upper and lower It may be in communication, and the body portion may have a shape that is narrow in the rear.

In addition, the upper support may be bent to one side, the rear contact surface of the insertion hole may be located on the same plane substantially the rear surface of the receiving groove.

In addition, the upper support may be bent to both sides, the first length bent to one side of the upper support is a length to reach the rear contact surface of the receiving groove, the second length bent to the other side of the upper support is It may be larger than the first length.

Further, the connection block may be at least two, the insertion port is preferably provided with a mounting groove so that the lower portion of the upper support. Here, the insertion hole may be substantially 'T' shape.

On the other hand, a mating protrusion is formed on one side of the head, a mating groove for inserting the mating protrusion may be formed on the other side, and the head portion and the body portion are filled to accommodate a predetermined filling material. Spheres can be formed.

Hereinafter, the retaining wall block structure will be described with reference to the accompanying drawings as an embodiment according to the present invention.

1 is an exploded perspective view illustrating a connection block and a retaining wall block used in a retaining wall block structure as an embodiment according to the present invention.

Referring to FIG. 1, the connection block 200 includes a lower support 210 and an upper support bent to a side from the lower support 210. The upper supporter 220 has a 'L' shape, that is, a first protruding portion 224 protruding to both sides from the upper end of the lower supporter 210 and a second protrudingly extending from the upper end of the first protruding portion 224 to the front surface. It has a protrusion 222, and the connection block 200 has a 'T' shape as a whole.

The retaining wall block 100 includes a head 110, a neck 120, and a body 130, and is formed of an integral concrete unit.

Head 110 has a rectangular shape with the side curved outward, the front surface is formed with a plurality of semi-cylindrical irregular grooves, and the upper surface of the filling material, such as concrete cinder aggregate or gravel when constructing the retaining wall structure The first filling hole 112 is formed to be accommodated and filled. Here, the front of the head 110 may have a variety of shapes, such as other stripes, crushed surface, smooth surface or sawtooth shape, and the first filling hole 112 may be a groove shape open to the top. The upper surface and the lower surface may be formed in a through-hole communication. In addition, by the first filling hole 112, since the weight is reduced in the unit of the concrete unit, there is an advantage that the transportation cost is reduced and the construction is easy, and the other retaining wall placed on the top by filling the gravel, etc. Since the frictional resistance with the block 100 can be increased, there is an advantage that the soil support of the retaining wall structure is improved.

One side of the head 110 is formed with a semi-cylindrical charging projection 116, the other side is a charging groove 114 that can be inserted into the charging projection 116 of the adjacent retaining wall block 100 is Is formed. Here, the retaining wall blocks 100 may be more firmly supported by the matching protrusions and the matching grooves because the adjacent retaining wall blocks 100 are firstly fastened by the head 110, and between the matching protrusions and the matching grooves. Since the contact area becomes large, the force that resists the hydraulic pressure acting behind the retaining wall structure increases.

The neck is connected to the back of the head 110 and the front body 130. That is, it is located between the head 110 and the body 130. An insertion hole 122 is formed on the upper surface of the neck so that the lower supporter 210 of the connection block 200 may be fitted, and both sides may be accommodated and supported by the upper supporter 220 of the connection block 200. Receiving groove 123 is formed. Here, the insertion hole 122 into which the connection block 200 is fitted is formed in the neck 120, which is an approximate center of gravity of the retaining wall block 100, and thus acts on the connection block 200 than the case formed in the head 110. There is an advantage to effectively distribute the load.

The insertion hole 122 has a through hole 122b formed in a rectangular bar shape so that the lower support 210 of a rectangular rod shape can be inserted therein, and a predetermined depth so that the first protrusion 224 of the upper support 220 can be seated. It consists of a recessed groove 122a cut into. Here, the cutting depth of the seating groove 122a is a depth at which a part of the upper support 220 may protrude to the upper surface of the block when the connection block 200 is fitted into the insertion hole 122. Accordingly, as will be described later, in the retaining wall structure, even if the shear load acts on the connection block 100 positioned at the upper portion, the first protrusion 224 of the connection block 200 is caught by the locking jaw 121 of the neck and It is possible to support the retaining wall block 100.

The receiving groove 123 is formed in a state in which the neck is recessed from both sides between the head 110 and the body portion 130, the back of the insertion hole 122 is located in front of the body portion 130. Accordingly, the rear contact surface of the insertion hole 122 and the rear contact surface 126 of the receiving groove 123 are positioned on substantially the same surface. Here, the head 110 and the body 130 may be recessed to step with the neck 120.

The body portion 130 has a shape that becomes narrower toward the rear for the curved construction in the retaining wall structure, the rear portion extending protruding to both sides so that the adjacent upper and lower retaining wall blocks 100 are stably disposed with each other ( 133 is provided. In addition, a first filling hole 132 that can accommodate a filling material such as gravel is formed on the upper surface of the body portion 130.

The retaining wall block 100 and the connection block 200 may be manufactured in mass production as a single unit of concrete by dipping mortar into the mold, and the retaining wall structure using the retaining wall block 100 and the connection block 200. Will be built.

In general, the retaining wall structure is subjected to the foundation trenching work so as to have sufficient bearing capacity according to the structural analysis, and after selecting the foundation bottom using coarse sand or concrete crushed aggregate having good drainage on the bottom, the retaining wall block 100 Install it.

Hereinafter, a process of constructing the retaining wall structure using the connection block and the retaining wall block 100 as an embodiment according to the present invention will be described with reference to FIGS. 2 to 4.

2 is a perspective view illustrating a vertically constructed state using the retaining wall block and the connecting block of FIG. 1, and FIG. 3 is a perspective view illustrating a retracted state using the retaining wall block and the connecting block of FIG. 1, and 4 is a cross-sectional view taken along line II of FIG. 2.

Referring to FIG. 2, first, when the first stage is stacked on the lower portion, the connection block 200 is fitted into the insertion hole 122 of the lower retaining wall block 100a so that the second protrusion 222 faces forward. In this case, the lower supporter 210 is inserted into the through hole 122b of the neck part 120 and the bottom of the first protrusion part 224 is seated in the neck part 120 in which the seating grooves 122a are formed. The front surface of the protrusion 224 and the bottom of the second protrusion 222 are caught by the locking jaw of the neck 120, and the second protrusion 222 is protruded upward. In addition, the adjacent lower retaining wall blocks 100 are arranged so that the charging protrusion 116 and the charging groove 114 are aligned. After the first end of the retaining wall block 100 is stacked, concrete cinder aggregate is filled in the space between the retaining wall block 100 adjacent to the filling hole and the insertion groove of the head 110 and the body 130.

Next, in the case of stacking the second stage, the second recess 222 of the connection block 200 protruding from the lower retaining wall block 100 has the center in the receiving groove 123 of the upper retaining wall block from the left and right sides thereof. The retaining wall blocks 100 are stacked so that the two protrusions 222 are inserted. At this time, even if the shear load acts on the retaining wall block 100 at the rear of the retaining wall block 100 due to earth and sand pressure, as shown in FIG. 4, the second protrusion 222 is caught, and the upper support is caught by the neck. (121) It is in the state supported over the whole surface. Accordingly, a large contact area between the connection block 200 and the retaining wall block 100 has an advantage of increasing the bearing force between the upper and lower retaining wall blocks 100 and improving the resistance to earth pressure to the outside.

Since the second protrusion 222 faces forward, vertical construction is performed. Here, since the first protrusion 224 is inserted into the receiving groove 123 of the retaining wall block around the first protrusion 224 of the connection block 200, the work and the construction are more simple.

Referring to FIG. 3, there is shown a connection state for retreating construction, and this state is as shown in FIG. 2, but the first protrusion 224 of the connection block 200 faces the rear when the first stage is stacked. It is fitted into the insertion hole 122 of the lower retaining wall block. Then, the front surface of the first protrusion 224 and the bottom of the second protrusion 222 of the 'b' shape is caught by the locking jaw of the neck 120 and the stepped body portion 130. Next, in the case of stacking the second stage, the second protrusion 222 protruding from the lower retaining wall block 100 has the second protruding length of the second protrusion 222 since the upper retaining wall block second protrusion 222 faces backward. As long as retraction is achieved.

As such, vertical and retreat construction can be simultaneously performed using the same one retaining wall block 100 and one connection block 200.

When the retaining wall block 100 is finished stacking, it backfills using useful soil, etc., and compacts by using a compact compactor. When the retaining wall structure is highly constructed, the geogrid is completely bound to the retaining wall block 100 and installed using the connection block 200 as necessary.

As described above, the connection block 200 and the retaining wall block 100 as illustrated in FIGS. 1 to 4 are described as an example according to the present invention, and the shape or shape thereof may be variously modified. A connecting block 200 having a 'T' shape, a lower support 210 having a rectangular rod shape, and an upper support 220 having an 'L' shape are illustrated, but the shape of the connecting block 200 is different from that of the retaining wall block 100. In the relationship can be variously modified, the shape of the support of the connection block 200 can be variously modified in the relationship with the back and vertical construction of the retaining wall structure. Therefore, with reference to Figures 5 to 7 as another embodiment according to the present invention.

5 and 7 are separated perspective views showing the retaining wall block and the connection block as another embodiment according to the present invention, and FIG. 6 is a perspective view showing the retracted state using the retaining wall block and the connection block of FIG. 5. . Here, the same reference numerals as those shown previously denote the same member having the same function.

Referring to FIG. 5, in another embodiment according to the present invention, the retaining wall block 300 and the connection block 400 are the same as the retaining wall block 100 and the connection block 200 described with reference to FIG. 1. There is no first protrusion 224 in the upper support 420 of the 400 and there is no seating groove 122a in the neck 320. In addition, the connection block 400 and the insertion hole 322 are each different from each other.

However, when the virtual contact surface is formed at the rear of the insertion hole 322, when the virtual contact surface is formed at the rear of the receiving groove 123, the respective contact surfaces overlap each other and are positioned on substantially the same surface. As shown in FIG. 6, when the upper support 420 bent at the lower support 410 is inserted into the insertion hole 322 of the neck 320, the retaining wall structure is retracted. Then, when the upper support 420 is inserted into the insertion hole 322 of the neck 320, the retaining wall structure is vertically constructed. The connection block 400 has the advantage that it is possible to easily build the retaining wall block by using a material such as a reinforced resin or a metal material in addition to the concrete.

Referring to FIG. 7, the retaining wall block 500 and the connection block 600 are the same as the retaining wall block 100 and the connection block 200 described with reference to FIG. In the upper support 620 of the 600, the second protrusion 624 is bent from both sides of the first protrusion 622 to form a third protrusion 623, and the insertion hole 522 of the neck 520 It is greatly different from the one formed near the center of the neck 520.

However, the first length L1 of the third protrusion 623 bent to one side of the upper support 620 is a length reaching the virtual contact surface that is virtually in contact with the rear of the receiving groove 123, that is, the receiving groove ( The contact surface virtually in contact with the rear of the 123 and the extension surface of the surface 624 'bent to one side is located on substantially the same surface. The second length L2 bent to one side is larger than the first length L1 bent to the other side.

Accordingly, when the third protrusion 623 of the upper support bent to one side from the lower support 610 is inserted into the insertion hole 522 of the neck 520, the retaining wall structure is vertically constructed. Then, when the second protrusion 624 of the upper support 620 is inserted backward into the insertion hole 522 of the neck 520, the retaining wall structure is as much as the difference between the first length (L1) and the second length (L2) Retreat construction.

In the above, the present invention is described as an example with reference to the accompanying drawings, but the present invention is not limited to this, various modifications or changes can be made without departing from the technical gist of the present invention, The technical scope of the present invention according to the invention should be interpreted by the claims.

According to the present invention as described above, by using one kind of the same retaining wall block and one kind of the same connection block, respectively, depending on the direction of the connection block to be inserted, it is possible to selectively vertically and retreat construction at the same time, the upper retaining wall block The upper support of the connection block can be accommodated in the receiving groove of the upper retaining wall block on the left and right of the connection block fitted to the easy operation and construction is easy to shorten the air.

Claims (21)

A connection block having a lower support and an upper support bent from the lower support by a predetermined length; And A retaining wall block having a head, a neck portion connected to the rear surface of the head and having an insertion hole formed therein so that the lower support can be fitted, and a neck portion having a receiving groove formed at a side surface to accommodate the upper support, and a body portion connected to the rear surface of the neck. Retaining wall structure comprising a. The method of claim 1, Retaining wall structure, characterized in that the receiving groove is formed by recessing the neck inwardly between the head and the body. The method of claim 1 Retaining wall structure, characterized in that the head portion and the body portion is connected to step with the neck. The method of claim 1, The insertion hole is a retaining wall structure, characterized in that the upper and lower communication. The method of claim 1, Retaining wall structure, characterized in that the body portion is narrow in the rear. The method according to any one of claims 1 to 5, Retaining wall structure, characterized in that the upper support is bent to one side. The method of claim 6, Retaining wall structure, characterized in that the rear contact surface of the insertion hole is located substantially on the same surface as the rear contact surface of the receiving groove. The method according to any one of claims 1 to 5, Retaining wall structure, characterized in that the upper support is bent to both sides. The method of claim 8, Retaining wall structure characterized in that the first length bent to one side of the upper support is a length reaching the rear contact surface of the receiving groove, the second length bent to the other side of the upper support is greater than the first length. The method according to claim 7 or 9 Retaining wall structure, characterized in that at least two connection blocks. The method according to claim 7 or 9, Retaining wall structure characterized in that the insertion hole has a mounting groove so that the lower portion of the upper support. The method of claim 11, Retaining wall structure, characterized in that the insertion hole is substantially 'T' shape. The method according to claim 7 or 9, Retaining wall structure, characterized in that the mating projection is formed on one side of the head portion, the matching groove into which the mating projection is inserted in the other side. The method of claim 13, Retaining wall structure, characterized in that the filling portion is formed in the head and the body portion can accommodate a predetermined filling material. For constructing a retaining wall structure using a connecting block having a lower support and an upper support bent a predetermined length from the lower support: Head; A neck portion connected to the rear surface of the head and having an insertion hole formed therein so that the lower support can be inserted therein and a receiving groove formed at a side surface to accommodate the upper support; And Retaining wall block comprising a; body portion connected to the back of the neck. The method of claim 15, The upper support is bent to one side, Retaining wall block, characterized in that the rear contact surface of the insertion hole is located substantially on the same surface as the rear contact surface of the receiving groove. The method of claim 15, The upper support is bent to both sides, Retaining wall block, characterized in that the first length bent to one side of the upper support is a length reaching the rear contact surface of the receiving groove, the second length bent to the other side of the upper support is greater than the first length. The method according to claim 16 or 17. Retaining wall block, characterized in that the at least two connection blocks. The method according to claim 16 or 17, Retaining wall block is characterized in that the insertion hole is provided with a mounting groove so that the lower portion of the upper support. The method of claim 19, The head has an outwardly curved side portion, One side of the side portion is formed with a mating projection, Retaining wall block, characterized in that the mating groove in which the mating projection can be inserted is formed at one side of the side portion. The method of claim 20, The torso narrows backwards, Retaining wall block, characterized in that the filling portion is formed in the head and the body portion can accommodate a predetermined filling material.