KR20110003420A - Block for retaining wall - Google Patents

Abstract

PURPOSE: A block for constructing a prefabricated reinforced earth retaining wall, capable of facilitating the insertion work of a connection pin, is provided to improve productivity and to by reducing the fatigability of works. CONSTITUTION: A block for constructing a prefabricated reinforced earth retaining wall comprises a rear surface(20), left and right surfaces, a top surface(40) and a bottom surface. The rear surface is close to the front surface forming the surface of the retaining wall and the reinforced earth. A connection pin inserting hole is opened at the backend surface of a through hole(60).

Description

Prefabricated Reinforced Earth Retaining Wall Building Block {BLOCK FOR RETAINING WALL}

The present invention relates to a prefabricated reinforcement earth retaining wall building block, and in detail, by opening the connection pin insertion hole for connecting the upper and lower blocks to the side of the through hole formed inside the block, the connection pin insertion hole by the debris during block molding This blockage is not blocked, and it is easy to insert the connecting pins during construction, and the connecting pins are continuously connected in a zigzag form between the upper and lower unitized blocks, so that the binding force between the upper and lower blocks is strengthened and the retaining wall is strengthened. The present invention relates to a prefabricated reinforced soil retaining wall construction block for improving construction stability because local loading and blockage or falling of blocks may be prevented that may occur during compaction of reinforced soil during construction.

Prior art related to the present invention discloses a prefabricated reinforcement retaining wall construction block of the applicant's patent No. 0674366 (registered on Jan. 19, 2007), which forms the surface of the retaining wall as shown in Figs. Reinforcing material insertion groove into which the front surface 10 and the rear surface 20 in contact with the reinforcement soil, the left and right side surfaces 30 and 30 'where at least a portion of the adjacent blocks abut, and the anchor for connecting the reinforcement or the reinforcement are fitted. An upper surface 40 having 44 formed in the front and rear directions and a lower surface corresponding to the upper surface 40 (not shown), and connecting pins between upper and lower blocks on the left and right sides of the upper and lower surfaces. Connecting pin insertion hole (h) for the upper and lower through-hole, the through-hole 60 is formed in the inner side of the block penetrating from the upper surface 40 to the lower surface, the through hole 60 is the stacking structure of the block The connecting pin (P) inserted into the connecting pin insertion hole (h) of the Li is formed at a position, in the side of the through hole 60 is reinforcing groove 44 is applied directly to the front end of the reinforcing material 80 is formed so as to be open toward the rear.

On the other hand, the conventional retaining wall construction block as described above was produced directly by the applicant, and some problems occurred in the process of constructing the retaining wall, first, the connection pin insertion hole (h) is formed in a two-stage form When the concrete debris generated during the molding of the block flows into the connection pin insertion hole (h), the narrow connection pin insertion hole (h2) inside is blocked, and it is blocked at the construction site by using connection pins or other thin skewers. There was a hassle to drill the connecting pin insertion hole, and second, if the connecting pin is inserted without removing the concrete debris completely, the connecting pin is not inserted completely. There was a problem such as a broken pin or a crack in the block. The head of the top of the pin (flange) is located on the upper surface of the block, so that only the lower block is connected to the connecting pin, so that when the two unitized blocks are stacked in a vertical stacking manner, the united upper and lower stacked blocks Since the connection by the connecting pin is not made in the construction and after construction, the retaining wall has a problem that the phenomenon occurs that the conduction phenomenon occurs in the case of heavy loads or some blocks are pushed forward.

The present invention has been made to solve the above problems, an object of the present invention is to provide a prefabricated reinforced soil retaining wall construction block of the improved structure is easy to produce and construction, improved stability during and after construction.

In order to achieve the above object, the present invention provides a front surface and a back surface in contact with the reinforcement soil, and at least a portion of the adjacent blocks in contact with at least a portion of the retaining wall, and a reinforcement insertion groove into which the reinforcement is fitted. In the retaining wall construction block is formed including an upper surface to be formed, and a lower surface corresponding to the upper surface, the connecting pin insertion hole for connecting between the upper surface and the lower surface through the through-hole for weight reduction and the upper and lower blocks; The connecting pin insertion hole is open to the rear end side of the through hole, and the upper end of the connecting pin insertion hole is provided with a seating groove in which a flange portion projecting outward of the connecting pin is formed to prevent the connecting pin from falling out. To provide a prefabricated reinforced retaining wall building blocks.

In the preferred embodiment of the present invention, the reinforcing member insertion groove is also formed in the left and right side direction of the block to form the retaining wall by connecting the reinforcing material to each individual block or adjacent blocks or to combine these methods Allows you to select the appropriate stiffener connection.

In one embodiment of the present invention, the through hole is formed in the center of the block, and the connection pin insertion hole provides a block open to the outside of the rear end of the through hole formed in the center of the block.

In another embodiment of the present invention, the through holes are formed at the left and right sides of the block, respectively, and the connection pin insertion holes provide blocks formed at the rear ends of the left and right through holes.

In the present invention, since the connection pin insertion hole is open to the side of the through hole, the connection pin insertion hole is not blocked by concrete debris, and the insertion of the connection pin is also lifted upward and pushed downward. It is a work method that is inserted into the inside of the through hole and inserted in the lateral direction so that the fatigue of work can be significantly reduced, thereby improving workability, and also preventing the damage of the pins generated during the insertion of the connecting pins. Since the unit is continuously connected in a zigzag form between the upper and lower unitized blocks, the cohesion between the upper and lower blocks is strengthened, so that the local loading phenomenon and the rolling of the block may occur when the reinforcement soil is compacted during the retaining wall construction. Since conduction is prevented, it has useful effects such as improving construction stability.

Hereinafter, with reference to the accompanying drawings, preferred embodiments that do not limit the present invention will be described in detail.

In the accompanying drawings of the present invention will be described with the same reference numerals for the same components as in the prior art of FIG.

1A and 1B are perspective views of prefabricated soil retaining wall construction blocks according to a first embodiment of the present invention, FIG. 2 is a plan view of the block shown in FIG. 1A, and FIGS. 3A and 3B are respectively shown in FIG. 1A. Fig. 4 is a perspective view and a plan view showing a state of constructing a straight retaining wall with a block, and Fig. 4 is a perspective view showing a state of constructing a curved retaining wall with a block shown in Fig. 1A.

As shown in FIGS. 1A to 4, the block B according to the present embodiment has a front surface 10 that forms the surface of the retaining wall and a rear surface 20 which is in contact with the reinforcement soil, and at least a portion of the adjacent blocks that abut the adjacent blocks. A right side surface 30, 30 ', an upper surface 40 on which the reinforcing material insertion groove 44 into which the reinforcing material S is fitted is formed in the front-rear direction, and a lower surface 50 corresponding to the upper surface 40. And a retaining wall construction block formed with a connection pin insertion hole (h) for connecting the through hole 60 and the upper and lower blocks from the upper surface 40 to the lower surface 50 to reduce the weight. The insertion hole h is open to the left and right portions of the rear end of the through hole 60, respectively, and the flange portion H protrudes outward from the connection pin P at the upper end of the connection pin insertion hole h. A seating groove (h ') is formed to be seated is to prevent the connection pin (P) fall out.

In the present embodiment, the reinforcement insert groove 44 is open in the left and right side directions as well as the rear of the block so that the reinforcement (R) can be connected to each block individually or in connection with an adjacent block. It is.

In this embodiment, the semi-circular uneven coupling portions 32 and 32 'are formed at the front portions of the left and right sides 30 and 30' of the block B, respectively, and the left and right sides 30 and 30 'are formed. ) Is formed so that the width becomes narrow toward the rear inner side, so that when the blocks are in close contact with the left and right sides, the concave-convex coupling portions 32 and 32 'of the side surfaces 30 and 30' are engaged with each other. As shown in FIG. 4, the structure may be constructed in a straight line in the left and right direction, or as shown in FIG. 4, to have a predetermined radius of curvature in the left and right direction, and the soil filled in the rear of the block may form a front surface of the retaining wall. It is possible to prevent the exposure or flow down to the front and to maintain the interlocking state between the adjacent blocks to the left and right, so that the block of the individual block does not occur during compaction of the soil.

In the present invention, the connecting pin (P) is made of a reinforcing glass fiber or metal round bar having an outer diameter that can be inserted into the connecting pin insertion hole (h), the flange portion (H) is formed on the approximately upper side of the middle It is to be fitted into the mounting groove (h ') formed in the upper connection pin insertion hole (h).

As shown in FIG. 3, the flange portion H has a narrow outer diameter from the top to the bottom thereof to facilitate the fitting into the seating groove h ′.

On the other hand, the distance to the center of the connection pin insertion hole (h) communicated with the through hole 60 is suitable about 30mm from the side of the through hole 60, as shown in the drawing, the present invention is not limited thereto. Of course, it can be formed closer or farther.

In the present invention, the insertion of the connecting pin (P) is inserted into the connecting pin insertion hole (h) opened laterally of the through hole 60 in a state in which the connecting pin (P) is inserted into the through hole (60). Since the flange portion H formed at the middle upper side of the pin P is inserted into the mounting groove h 'formed at the upper end of the connection pin insertion hole h, the insertion work of the connecting pin is easier than in the conventional method. The lower and upper lengths of the connecting pins (P), that is, the distance from the flange portion (H) of the upper portion to the lower portion and the upper portion of the connecting pin (P) may vary in length depending on the height of the individual block and the block construction method. Produce and use.

FIG. 5 is a plan view of a block according to a second embodiment of the present invention, and FIG. 6 is a perspective view of a straight retaining wall constructed by the block of FIG. 5.

5 and 6, in this embodiment, the through holes 60 are formed at the center and the left and right sides of the block, respectively, and the connection pin insertion holes h are respectively the left and right through holes 60. It is open to the rear end of the inner side.

FIG. 7 is a plan view of a block B according to a third embodiment of the present invention, and FIG. 8 is a plan view of a straight retaining wall constructed by the block of FIG.

As shown in FIGS. 7 and 8, the block B according to the present embodiment is basically the same as the block of the embodiment illustrated in FIGS. 1 to 4, and the left side of the front end portion of the through hole 60 formed in the center portion, The right side also has a connection pin insertion hole h is formed.

In the block according to the present embodiment, as shown in FIG. 8, two connecting pins P are coupled between blocks B and V adjacent to each other, so that the binding force is strengthened. It can have the advantage of effectively preventing the fall and the like) and fall.

9 is a plan view of a block according to a fourth embodiment of the present invention, and FIG. 10 is a plan view showing a state in which the blocks of FIG. 9 are stacked.

As shown in Figure 9 and 10 block (B) according to the present embodiment is formed in communication so that the position of the connecting pin insertion hole (h) toward the outside of the left and right in the through hole 60 of the left and right, This connecting pin insertion hole (h) is formed in two pairs side by side, in order to strengthen the binding force between the blocks that are built up and down stacking connecting pins (P) to all the connection pin insertion holes (h) It can be inserted, and the connection pin (P) can be selectively inserted only in any connection pin insertion hole (h) according to the convenience of construction.

11 to 13 show various methods of connecting the strip-shaped fiber reinforcement for supporting the block according to the present invention.

First, FIG. 11 is a view showing a state in which the reinforcement (S) is connected to the block (B) of the present invention in a complex manner, so as to have a U-shape in the reinforcement insertion groove 44 formed to be opened behind each block (B). While supporting the band-shaped fiber reinforcement (S) individually and at the same time between the left and right adjacent blocks (B) by connecting the band-shaped fiber reinforcement in a left and right direction to the reinforcement insertion groove 44 opened in the left and right in a straight line. Even though the earth pressure received from the back among the adjacent blocks (B) is concentrated in some blocks, the earth pressure is dispersed by the fiber reinforcement (S) continuously connected to the left and right to prevent the phenomenon that some blocks are pushed forward.

12 shows a state in which the reinforcement is individually connected to the block (B) of the present invention, this connection method is applied during the construction of a conventional straight or gentle curved retaining wall.

FIG. 13 is a plan view showing a state in which adjacent blocks B are connected at the same time. In the present embodiment, one band-shaped fiber reinforcement S is provided in the reinforcing material insertion groove 44 formed in the adjacent blocks B from side to side. By connecting in conjunction, one belt-like fiber reinforcement (S) is able to support two blocks at the same time.

1A and 1B are a perspective view and a rear perspective view of a prefabricated reinforced soil retaining wall building block according to a first embodiment of the present invention;

2 is a plan view of the block shown in FIGS. 1A and 1B,

3A is a perspective view showing a state of constructing a straight retaining wall with the block shown in FIG. 1A;

3B is a plan view showing the construction of FIG. 3A;

4 is a plan view showing a state of constructing a curved retaining wall with the block shown in FIG. 1A;

5 is a plan view of a block according to a second embodiment of the present invention;

6 is a perspective view of a straight retaining wall constructed of the blocks of FIG. 5, FIG.

7 is a plan view of a block according to a third embodiment of the present invention;

8 is a plan view of a straight retaining wall constructed of the blocks of FIG.

9 is a plan view of a block according to a fourth embodiment of the present invention;

10 is a plan view illustrating a state in which the blocks of FIG. 9 are stacked;

11 is a plan view of a state in which the reinforcement is connected to the block of the present invention in a complex manner,

12 is a plan view of the state in which the reinforcing material is individually connected to the block of the present invention,

13 is a plan view showing a state in which adjacent blocks are connected at the same time;

14 is a plan view of a prefabricated reinforced soil retaining wall construction block according to the prior art.

DESCRIPTION OF THE REFERENCE NUMERALS

B: block 10: front

20: back 30,30 ': side

32,32 ': uneven coupling portion 40: upper surface

44: reinforcement insert groove 50: lower surface

60: through hole h: connecting pin insertion hole

h ': Settling groove P: Connecting pin

H: Flange S: Band-shaped fiber reinforcement

Claims (7)

The back surface which contacts the front surface and the reinforcement soil which form the surface of the retaining wall, the left and right side surfaces where at least a portion of the adjacent blocks abut, the upper surface where the reinforcement insertion groove into which the reinforcement is inserted is formed in the front-rear direction, and the upper surface In the retaining wall construction block is formed, including a lower surface, the connection from the upper surface to the lower surface is formed through the through-hole for weight reduction and the connection pin insertion hole for the connection between the upper and lower blocks; The connecting pin insertion hole (h) is open to the rear end side of the through hole (60), and the upper end of the connecting pin insertion hole (h) is seated to the flange portion (H) protruding outward of the connecting pin is seated Prefabricated reinforcement retaining wall building block, characterized in that the groove (h ') is formed to prevent the connecting pin (P) from falling out. The method according to claim 1, The reinforcing member insertion groove 44 is prefabricated reinforcement retaining wall building block, characterized in that the opening formed in the left and right side direction of the block. The method according to claim 1 or 2, Semi-circular uneven coupling portions 32 and 32 'are formed at the front left and right sides 30 and 30' of the block B, respectively, and the left and right sides 30 and 30 'are rearwardly inward. Prefabricated soil retaining wall building block, characterized in that formed to narrow the width toward. The method according to claim 1 or 2, The through hole (60) is formed in the center of the block, the connecting pin insertion hole (h) is prefabricated reinforced soil retaining wall building block, characterized in that the opening is formed outside the rear end of the through hole (60) formed in the center of the block. The method according to claim 4, Prefabricated reinforcement earth retaining wall building blocks, characterized in that the connection pin insertion hole (h) formed to be open to the front end side of the through hole 60 is further provided. The method according to claim 1 or 2, The through holes 60 are formed at the left and right sides of the block, respectively, and the connecting pin insertion holes h are open to the inside or outside of the rear end of the left and right through holes 60. Dragon block. The method according to claim 6, Prefabricated reinforcement earth retaining wall building blocks, characterized in that the connection pin insertion hole (h) formed to be open to the front end side of the through hole 60 is further provided.

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