KR101139974B1 - A corner block for construct reinforced earth wall and construction method of corner part thereof - Google Patents

Abstract

PURPOSE: A corner block for constructing a retaining wall and a construction method of the corner part of a retaining wall are provided to cost-efficiently construct a curved retaining wall having various curvature radiuses. CONSTITUTION: A corner block(B) for constructing a retaining wall comprises a front side, a back side, left and right sides(103,104), and upper and lower sides. The front side forms the exterior of a retaining wall. The back side is bordered on reinforced soil. The left and right sides touch horizontally adjacent blocks. The upper and lower sides touch vertically adjacent blocks. One of the left and right sides has a joint, and the other one has multiple joints.

Description

A corner block for construct reinforced earth wall and construction method of corner part

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall construction corner block and a method for constructing a corner portion of a retaining wall using a combination of the corner block and a general block. It is suitable for constructing curved retaining walls of various curvature radius in addition to the right angle corners, and for retaining wall construction having a structure in which a retaining wall of a part combined with alternating and passage boxes can be firmly constructed without generating gaps. The structure of a corner block and the method of building a corner retaining wall using the combination of this corner block and a general block.

The related art of the present invention discloses a retaining wall construction corner block of the applicant's patent No. 0632966, which uses only a general block having left and right sides so that mutual concavities and convexities are formed between adjacent blocks from side to side. In case of construction, in case of uneven settlement of ground or horizontal displacement of reinforcement soil at the corner, shear force is concentrated on the stacked blocks to prevent breakage or large gaps between blocks, and at the right angle in the minimum space. In order to increase the space utilization and to reduce the required materials by allowing the corner portion to be constructed, this is a block (B) which is constructed at right angles to the left and right sides of the corner block (A), as shown in FIG. 1. Receiving grooves 12 to which the sides of the) are fitted so as to be perpendicular to each other, the reinforcement to the rear on the upper surface Alternatively, a reinforcing member insertion groove is formed in which the tip portion of the anchor is fitted, and the reinforcing member insertion groove has a structure in which a connection pin insertion hole is formed in which a connection pin for fitting between blocks constructed up and down is inserted.

The above-described corner block of Patent No. 0632966 has a problem that can be applied only to a portion projecting at right angles in the retaining wall linear, and the corner block A is not used as shown in FIG. Since only the general block (B) and the half block (C) are constructed, the corners are not formed at right angles and are formed diagonally, and the coupling force between the general block (B) and the half block (C) is also lowered. There was a problem that defects such as gaps occur frequently, and there is a limit that can not be used in the retaining wall portion formed of a linear of various angles.

In addition, when constructing the corner retaining wall using the corner blocks shown in FIGS. 1 and 2, an additional half block (C) had to be additionally used, which may cause a cost increase due to additional purchase of materials. The half block has a weak coupling force between adjacent blocks and reinforcement soils, and this part easily escapes or opens a gap, causing soil leakage.

On the other hand, the reinforcement soil retaining wall construction block of the applicant's prior application model No. 0412264 can be combined between the left and right adjacent blocks in a straight line or various curved forms so as to solve the above problems, the retaining wall having a linear according to the terrain 3 to 5, which has a front surface forming a retaining wall surface and a rear surface, a left and right side surface, and a top and bottom surface corresponding to the front surface, and having a through hole therein. In the retaining wall construction block formed; Coupling protrusions 52 and 54 for interlocking between blocks stacked up and down are formed on both sides of the rear portion of the upper surface, and reinforcement insert grooves are formed at the front and the inner side of the coupling protrusions 52 and 54, respectively. On both sides of the rear surface of the lower surface, fitting grooves 52 and 54 are formed to have fitting grooves 62 and 64 formed therein.

The above-mentioned Utility Model Registration No. 0412264 is suitable for constructing various linear retaining walls, but when constructing corner retaining walls protruding at right angles or indented at right angles, the radius of curvature increases as shown in FIG. There was a disadvantage that causes wasted.

In addition, when constructing a curved retaining wall with the conventional general block (B) shown in Figs. 6 and 7, a step (protrusion and indentation) between the upper and lower blocks occurs on the front of the retaining wall, which is good for aesthetic appearance. Not only that, the ground area between the upper and lower blocks is small, so that the linear stress of the retaining wall may be distorted or the stress concentrated block may be easily damaged when the shear stress is caused by the differential settlement.

In addition, when the curved retaining wall is constructed by the existing block, the curved block is frequently damaged by the horizontal displacement (earth pressure) of the reinforcing soil acting inevitably and radially because the upper and lower surfaces of the block are in contact with each other.

The present invention has been made to solve the above problems, the object of the present invention is to allow a variety of linear to match the terrain by allowing the coupling at various angles between the right and left right wall as well as the right angle retaining wall protruding at right angles. In addition, a retaining wall construction corner block capable of economically constructing a curved retaining wall having a straight line shape and various curvature radii while maintaining a structurally robust state, and using the block, provides a corner portion of the retaining wall.

In order to achieve the above object, the present invention provides a top surface and a bottom surface contacting between left and right sides and top and bottom adjacent blocks contacting between the front and rear surfaces of the retaining wall, the rear surface contacting the reinforcement soil, and the adjacent blocks from side to side. In the retaining wall construction block having a; One side of the left and right sides has one coupling portion protruding to the side, the other side is a plurality of coupling portions radially from the front to the rear of the block from the front side of the block so that the coupling portion of the one side can be coupled at any angle It is formed to provide a retaining wall building corner block to adjust the angle between the adjacent blocks to the left, right.

In the present invention, the upper portion of one side of the radial coupling portion is formed to have a step lower than the height of the upper surface to maintain a spaced state between the blocks stacked up and down to prevent breakage due to stress concentration even under shear force. .

The present invention also relates to a method for constructing a retaining wall of a protruding corner portion or an indented corner portion formed at a predetermined angle; The general block having left and right sides and the left and right sides of the corner block are faced to form a predetermined angle to the left and right sides of the corner part so that mutual unevenness is formed between adjacent blocks from left and right, and the upper corner corner block Provided is a method for constructing a retaining wall of a corner by repeating a process of constructing the left and right sides of a general block in a predetermined angle to each other.

In the present invention, since the coupling portion is formed radially on one side of the block, the connection angle between adjacent blocks can be constructed at any angle from the protruding right angle corner to the indented right angle corner. Therefore, it is possible to construct retaining walls that are suitable for the terrain or required by landowners, and by forming a strong construction state in shear stress, there is little risk of construction defects.

1 is a state diagram of a corner block according to the prior art,
FIG. 2 is a state diagram of a built-in retaining wall constructed of a corner block shown in FIG. 1;
3 is a plan view of the construction of a corner block according to another prior art;
4 is a plan view of an indented retaining wall constructed of the blocks shown in FIG. 3;
5 is a perspective view showing a corner portion of the retaining wall constructed of the block shown in FIG. 3;
6 is a plan view of a protruding retaining wall constructed of a conventional general block,
7 is a plan view of an indented retaining wall constructed of a conventional general block,
8 is a perspective view of a corner block according to a first embodiment of the present invention;
9 is a perspective view showing a corner portion of the retaining wall constructed by the block of FIG. 8;
10 is a plan view of FIG. 9;
11 is a perspective view of a protruding retaining wall constructed by the block of FIG. 8, FIG.
12 is a plan view of FIG.
13 is a plan view showing various angle changes of the protruding retaining wall;
14 is a perspective view of an indented rectangular retaining wall constructed by the block of FIG. 8, FIG.
15 is a plan view of FIG. 14;
16 is a perspective view of an indented retaining wall constructed by the block of FIG. 8, FIG.
17 is a plan view of FIG. 16;
18 is a plan view showing various angle changes of the indented retaining wall;
19 is a perspective view of the alternating portion of the block of FIG. 8;
20 is a plan view of FIG. 19,
21 is a perspective view of another construction state of the alternate portion,
FIG. 22 is a plan view of FIG. 21;
23 is a perspective view of a construction state of the passage box portion;
24 is a plan view of FIG. 23;
25 is a perspective view of a corner block according to a second embodiment of the present invention;
26 is a perspective view showing a corner portion of the retaining wall constructed by the block of FIG. 25;
27 is a plan view of FIG.
28 is a perspective view of a protruding retaining wall constructed by the block of FIG. 25;
29 is a top view of FIG. 28,
30 is a plan view showing various angle changes of the protruding retaining wall;
31 is a perspective view of an indented rectangular retaining wall constructed by the block of FIG. 25;
32 is a plan view of FIG. 31;
33 is a perspective view of an indented retaining wall constructed by the block of FIG. 25;
34 is a top view of FIG. 33;
35 is a plan view showing various angle changes of the indented retaining wall.

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

FIG. 8 illustrates a retaining wall building corner block according to a first embodiment of the present invention, and two types of corner blocks are shown together, which is a type in which only the left and right sides are inverted. In the description, when a reference numeral is written for left and right sides, it will be described with reference to the left and right sides of the state shown in the drawings for convenience.

As shown in FIG. 8, the corner block B of the present embodiment has a front surface 101 forming an outer surface of the retaining wall, a rear surface 102 in contact with the reinforcement soil, and left and right side surfaces contacting between adjacent blocks left and right ( 103 and 104 and the upper and lower surfaces 105 and 106 in contact between the upper and lower adjacent blocks, the upper surface 105 is formed with a reinforcement insertion groove 107 is connected to the reinforcement toward the rear surface 102, upper and lower blocks Connecting pin insertion grooves 108 for interlocking therebetween are formed; One of the left and right sides 103 and 104 has one coupling portion 104a protruding laterally, and the other side of the block front side 101 is such that the coupling portion 104a of the one side can be coupled at an arbitrary angle. A plurality of engaging portions 103a are radially formed at the same radius from the back surface 102 to the rear surface 102 so that the angle between the adjacent blocks to the left and right sides can be adjusted to an arbitrary angle.

In the present invention, the upper portion of the side surface 103 formed with the radial coupling portion 103a is lower than the height of the upper surface 105, and the external force absorbing groove 109 is formed to form a step of about 5 mm. By maintaining the spaced apart state without close contact between the blocks stacked up and down, it is possible to prevent breakage of the block due to stress concentration even if the shear force is caused by the uneven settlement.

In the present invention, the shape of the front face, that is, the shape of the front face 101 and the back face 102 in the block is not particularly limited and the front face 101 is the first embodiment shown in FIG. It can be formed in a variety of forms, such as the form of a straight split type, or the form of wrinkles or comb pattern, the shape of the back 102 is not limited to the shape in which the left and right sides protrude backward as shown in FIG. Of course, it can be produced in various forms.

In the drawing, reference numeral 110 denotes a through hole penetrating the upper and lower surfaces, and the through hole 110 is a matter that is designed for light weight of the block and for convenience during transportation.

The left and right sides 103 and 104 of the block, which is a characteristic structure of the present invention, are formed in the form of left and right asymmetry as described above, which means that only one coupling portion 104a of one side 104 is formed. The other side 103 is characterized in that a plurality of coupling portions 103a are formed at the same radius from the front surface 101 to the rear surface 102 of the block B.

The coupling portions 103a and 104a are for preventing the reinforcement soils behind the blocks from being exposed or spilled to the front side while the side surfaces between adjacent blocks abut on the left and right sides, and the coupling portion 104a on one side is literally one main portion. 104a-1 and one convex portion 104a-2 are formed adjacent to each other, and the engaging portion 103a on the other side is concentric with the concave portion 103a-1 and the convex portion 103a-2 like a spur gear. In addition, they are radially formed alternately, and the axial angle of the retaining wall is determined depending on which position the engaging portion 104a of the adjacent block is engaged with.

Hereinafter, various forms of the retaining wall constructed using the block and the general block of the above-described embodiment and a method of constructing the same will be described.

9 and 10 illustrate corner portions of the protruding rectangular retaining wall, and the left and right sides 103 and 104 of the general block B1 and the corner block B are arranged at right angles to the left and right corners of the protruding rectangular right wall. In the upper part again, the construction of the corner block B and the left and right side surfaces 103 and 104 of the general block B1 in the opposite direction is repeated, so that the construction can be performed by repeating the construction. The reinforcement to be embedded is preferably alternately provided with a step corresponding to the height of one block so as not to intersect at the same position when connecting the retaining wall on the left side and the retaining wall on the right side with respect to the corner block B.

In the present invention, since the reinforcement may be disposed at right angles to the front surface of the retaining wall, even if there is sedimentation of the reinforcement body or other external force, the force supporting the block forming the retaining wall is uniform so that the deformation of the retaining wall does not occur. have.

On the other hand, between the upper and lower blocks of the corner portion is maintained by about 5mm spaced apart by the external force absorbing groove 109, the stress is concentrated in the corner portion when the differential settlement occurs to actively prepare for the shear force applied to the corner block Can be. Thus, the occurrence of defects can be eliminated.

According to the present embodiment, it is possible to minimize the required site and material and to construct a structurally rigid projecting rectangular retaining wall.

11 and 12 illustrate corner portions of the protruding 45 ° (135 °) retaining walls, in which a coupling portion 103a on one side of the corner block B and a coupling portion 104a on one side of the general block B1 are illustrated. It is possible to interlock with each other to coincide with the straight line forming the front surface of the retaining wall to form a 45 ° position, it is possible to build a natural 45 ° corner portion.

FIG. 13 illustrates various angle changes of the protruding retaining wall. The corner block B of the present embodiment has a plurality of radial portions within the same radius from the front side to the rear side of the block 103a. Since the formed portion 104a of the adjacent general block B1 is formed, it is shown that the projected corner portion of various angles can be constructed by selecting the position where the coupling portion 104a is coupled to the coupling portion 103a.

14 and 15 show a corner portion of a recessed right angle retaining wall, and the general block B1 and the corner block B are perpendicular to the left and right angled corner portions at right and left corner corners in the opposite direction. By repeating the process of constructing (B) and the general block (B1) to be perpendicular to each other, the construction is possible, and since the reinforcement embedded into the reinforcement body does not intersect unlike the projecting right angle corner part, It can be installed at the same time from the height.

On the other hand, the top and bottom blocks between the indented right angle corners are kept 5 mm apart by the external force absorbing groove, and stress is concentrated at the corners in case of an uneven settlement, and actively prepares for the shear force applied to the corner blocks. Can be. Thus, the occurrence of defects can be eliminated.

According to the present embodiment, it is possible to minimize the required site and material and to construct a structurally rigid indented rectangular retaining wall.

16 and 17 illustrate corner portions of the indented 45 ° retaining wall, wherein the engaging portion on one side of the corner block and the engaging portion on one side of the general block form a straight line forming the front surface of the retaining wall and 135 ° (-45 °). They can be interlocked to match their position, and a natural -45 ° corner can be constructed.

18 illustrates various angle changes of the indented retaining wall. In the corner block of the present embodiment, a plurality of coupling portions of one side of the block are radially formed within the same radius from the front side to the rear side of the block, and thus the coupling position of the coupling portion It can be seen that by selecting the can be built in the indented corners of various angles.

19 and 20 show the construction of an alternating portion, and reinforce the corner block B of the present invention without using a conventional half block having a poor coupling force in an alternating connection portion connected vertically with the retaining wall on the side of the road. The depth of engagement is deepened by inserting at right angles so as to contact the inside of the sieve, that is, the inner side of the shift P, thereby effectively preventing the outflow of soil due to the separation between the shift P structure and the retaining wall block. have.

21 and 22 show another construction state of the alternating portion, and here, as shown in FIGS. 19 and 20, the existing half block having a low coupling force at the alternating connection portion connected vertically with the retaining wall on the side of the road is shown. The joint depth is deepened by inserting the corner block B of the present invention at right angles so as to be in contact with the reinforcement body side, that is, the inner side of the alternating portion P, and thus, the space between the structure and the retaining wall block. It is possible to effectively prevent the leakage of soil due to the shoulder portion narrowing toward the alternating to form a protruding 45 ° (135 °) corner as shown in FIG.

23 and 24 show the retaining wall construction state of the passage box (R) portion is installed under the road, and here also the corner block (B) is inserted into the reinforcement body inside the same as the portion perpendicular to the alternating passage By making it perpendicular to the side of the box R, the depth of engagement at the position where the passage box R and the retaining wall abut can be deepened, and the construction between the left and right blocks at the position where the upper surface of the passage box is in contact with each other. This is done naturally without using a separate half block.

FIG. 25 illustrates a corner block according to a second embodiment of the present invention. The corner block according to the present embodiment is structurally identical to the block of the first embodiment except that the overall shape is different.

That is, the corner block (B) of the present embodiment has a front surface 101 forming an outer surface of the retaining wall, a rear surface 102 in contact with the reinforcement soil, and left and right side surfaces each formed in an uneven shape so as to contact between adjacent blocks to the left and right ( 103 and 104 and the upper and lower surfaces 105 and 106 in contact between the adjacent blocks up and down, the upper surface 105 is formed with a reinforcement insertion groove 107 is connected to the reinforcement toward the rear surface 102, upper and lower blocks Connecting pin insertion grooves 108 for interlocking therebetween are formed; One of the left and right sides 103 and 104 has one coupling portion 104a protruding laterally, and the other side of the block front side 101 is such that the coupling portion 104a of the one side can be coupled at an arbitrary angle. A plurality of engaging portions 103a are radially formed at the same radius from the back surface 102 to the rear surface 102 so that the angle between the adjacent blocks to the left and right sides can be adjusted to an arbitrary angle.

In the present embodiment, like the block of the first embodiment, the upper portion of the side surface 103 on which the radial coupling portion 103a is formed is lower than the height of the upper surface 105, so as to form a step of about 5 mm. ) Is formed so that the blocks stacked up and down at this portion are kept in close contact with each other and are kept in a spaced state to prevent breakage of the block due to stress concentration even if the shear force is caused by uneven settlement.

The difference in the shape of the corner block according to the second embodiment of the present invention and the corner block according to the second embodiment is the difference between the degree that the front surface 101 of the block is entirely flat or only a part of the front surface is flat Only the basic structure is the same, so duplicate description is omitted.

26 and 27 show corner portions of the protruding rectangular retaining wall, which are also perpendicular to the general block B1 and the corner block B from side to side as in the description of FIGS. 9 and 10. This can be achieved by repeating the process of abutting the corner block B and the general block B1 at right angles in the opposite direction to each other so as to face each other.

In this construction structure, the method of embedding the reinforcing material is the same as that of the first embodiment, so it is omitted. Since the resistance structure against the shear stress is also overlapped, it is omitted.

28 and 29 show a corner portion of the protruding 45 ° retaining wall, the description of which is the same as that of FIGS. 11 and 12.

30 is a plan view illustrating various angle changes of the protruding retaining wall, the description thereof being the same as that of FIG.

31 and 32 show the corner portions of the indented rectangular retaining wall, which are also the same as FIG. 14 and FIG. 15.

33 and 34 illustrate corner portions of the indented 45 ° retaining wall, and description thereof is also the same as that of FIGS. 16 and 17 and will be omitted.

FIG. 35 illustrates various angle changes of the indented retaining wall, and description thereof is also the same as that of FIG. 18 of the first embodiment, and thus will be omitted.

The corner block according to the second embodiment of the present invention, like the corner block according to the first embodiment of the present invention, constructs a beautiful retaining wall in appearance without alternating or using a half-block in the vicinity of the box passage. can do.

As described above, in the corner block of the present invention, the left and right sides of the block form an asymmetrical shape, but on one side, a plurality of coupling parts are formed radially along the same radius from the front side to the rear side of the block so that the adjacent blocks are left and right adjacent to each other. Coupling angle with can be applied in a variety of angles from protruding right angle to indented right angle, and it is possible to economically build curved retaining wall of desired angle within minimum required site without using additional materials. It is also structurally strong and can be built firmly and splendidly without the occurrence of gaps even without the use of half-blocks even in the areas where it is combined with alternating and passage boxes, and the ground area between the upper and lower blocks at the corners of the retaining wall. This is sufficient to prevent the retaining wall from twisting or other deformations. A has a beneficial effect.

B: corner block B1: normal block
P: Alternate R: Box Passage
101: front 102: rear
103: side 103a: coupling portion
103a-1: Main part 103a-2: Iron part
104: side 104a: coupling portion
104a-1: Main part 104a-2: Iron part
105: upper surface 106: lower surface
107: reinforcement insert groove 108: connecting pin insertion groove
109: external force absorbing groove 110: through hole

Claims (5)

The front and bottom surfaces 101 forming the outer surface of the retaining wall, the rear surface 102 in contact with the reinforcement soil, the left and right side surfaces 103 and 104 in contact between the left and right adjacent blocks, and the upper and lower surfaces in contact between the vertically adjacent blocks ( A retaining wall building block having 105, 106;
One side of the left and right sides 103 and 104 has one coupling part 104a protruding laterally, the coupling part 104a having one recessed part 104a-1 and one convex part 104a-2. Are formed adjacent to each other, and the other side of the plurality of coupling portions 103a with the same radius from the front surface 101 to the rear surface 102 of the block so that the coupling portion 104a of the one side can be coupled at an arbitrary angle. Is formed radially, but the coupling portion 103a is formed radially alternately while the concave portion 103a-1 and the convex portion 103a-2 form concentric circles to adjust the angle between adjacent blocks to the left and right to an arbitrary angle. The upper side of the side surface 103, the radial coupling portion 103a is formed is an external force absorbing groove 109 is formed lower than the height of the upper surface 105, so that the block is stacked up and down in this portion It is characterized in that it is maintained to be spaced apart without close contact between Corner block for a retaining wall construction. delete delete delete delete

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