KR101713894B1 - Retaing wall using pin - Google Patents

Abstract

The present invention relates to a retaining wall using a fixing pin. Multiple blocks (100) including a front wing unit (110), a connection unit (120), and a rear wing unit (130) are vertically built by the fixing pin (200). A narrow unit (131) is formed on one side among the upper part and the lower part of the rear wing unit (130). A wide unit (132) is formed on the other side among the upper part and the lower part of the rear wing unit (130) and is wider than the narrow unit (131). A wide insertion unit (220) is formed on one side among the upper part and the lower part of the fixing pin (200) in order for the wind unit (132) of the rear wing unit (130) to be inserted. A narrow insertion unit (230) is formed on the other side among the upper part and the lower part of the fixing pin (200) in order for the narrow unit (131) of the rear wing unit (130) to be inserted. The retaining wall using the fixing pin has excellent construct ability without adverse influence on strength of the block and can be combined with a reinforcing material.

Description

Retaining wall using retention pin {RETING WALL USING PIN}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction field, and more particularly to a retaining wall using a fixing pin.

Researches on the technique of adjusting the inclination of the retaining wall by using the fixing pin have been actively carried out.

1 to 3 relate to Korean Registered Practice Bulletin 20-0354134 (block type reinforced earth retaining wall).

1, the block body 110 and the rear wall 120 integrally form a retaining wall block 100. The block body 110 includes a front surface 111, an upper surface 113, a bottom surface 115, , And a side surface (117).

The front surface 111 may have an inclined portion extending to both sides of the straight portion, but may have an overall arc shape in consideration of the aesthetic appearance, and may have various patterns.

The side surface 117 has a shape that is reduced toward the rear wall 120 and expanded in the rear wall 120.

In the block body 110, filling parts 112a and 112b vertically penetrating from the upper surface to the lower surface are formed on the front and rear sides, respectively, with respect to the partition 119.

And serves to reduce the weight of the retaining wall block 10 of the filling parts 112a and 112b and can be filled with mortar, aggregate, gravel and the like in a laminated state.

The pin receiving portions 114a and 114b are vertically downwardly formed on the left and right sides of the upper surface 113 and the lower surface 115 of the body 110. The pin receiving portion includes a pin portion 202a And the pin receiving portions 114a and 114b have shapes corresponding to the cross-sectional shapes of the fin portions 202a and 202b.

The lower surface 115 of the block body 110 is formed with a clip connection groove 118 through which the left and right pin receiving portions are connected and the connection portion 204 of the connection clip 200 is inserted into the clip connection groove.

The clip connection groove 118 is formed in consideration of the length and thickness of the connection portion because the connection portion 204 of the connection clip is fitted.

2, the engaging clip 200 connecting the adjacent retaining wall block 100 and the retaining wall block 100 includes pin receiving portions 114a and 114b formed perpendicularly to the upper surface 113 of the adjacent retaining wall block ).

The engaging clip 200 includes longitudinal pin portions 202a and 202b inserted into the pin receiving portions 114a and 114b of adjacent two retaining wall blocks 100 and a horizontal connecting portion 204 connecting the pin portions So that the engaging clip 200 forms an H shape.

As shown in FIG. 3, as an example of the retaining wall construction using the retaining wall block 100 and the engaging clip 200, first, the retaining wall block DB is arranged laterally according to the shape of the retaining wall.

When the lower retaining wall blocks DB are arranged, the pin portions 202a and 202b of the engaging clip 200 are inserted into the left and right pin receiving portions 114a and 114b of the adjacent retaining wall block to connect the adjacent retaining wall blocks and the retaining wall block Connect.

After the lower retaining wall block DB is connected through the engaging clip 200, the upper retaining wall block UB is staggered with the lower retaining wall block DB.

The clip connecting portion 204 of the engaging clip connecting the lower retaining wall DB is fitted into the clip connecting groove 118 formed in the lower surface 115 of the upper retaining wall block UB and the pin connecting portions of the pin portions 202a and 202b A part of which is inserted into the pin receiving portions 114a and 114b of the upper retaining wall block UB and the remaining part thereof is inserted into the pin receiving portion of the neighboring lower retaining wall block DB.

The retaining walls are solidly formed by filling mortar, aggregate, gravel and the like into the filling parts 112a and 112b of the stacked retaining wall blocks.

It is possible to connect the adjacent retaining wall block 100 with the engagement clip 200 and to secure the retaining wall by preventing the movement of the engagement clip and the motion of the wall block by connecting the upper retaining wall block UB Show.

4 to 7 relate to Korean Patent No. 10-0460284 (a combination of ecological blocks).

The retaining wall block 30 has a recessed fillet 32 formed in the interior of the trunk 31 and a bottom surface of the gathersecting portion is formed of a porous concrete in particular so that the roots of the plant fillet Pass through the bottom and settle on the soil.

A fixing pin insertion hole (34) is formed in the upper side of the side surface of the body part in a longitudinal direction in the left and right sides. The fixing pin insertion groove (33) is formed on an extension of the fixing pin insertion hole . The upper end (34a) of the fixing pin insertion hole is formed into a funnel shape.

4, the vertical branches 35a of the "H" -shaped fixing pins 35 are inserted into the respective fixing pin insertion holes, and the horizontal branches 35b are inserted into the fixing pins 35a, And is seated in the seating groove 33. Therefore, at least two to a maximum of four retaining wall blocks can be firmly engaged with one fixing pin, and the fixing pin can be easily inserted due to the top end of the funnel shape. The length of the vertical branch 35a of the fixing pin may be slightly less than half the height of the retaining wall block.

In addition, since the rear surface of the trunk portion is formed to be bent, adjacent blocks are arranged side by side to form a curved portion 36, so that as much soil as possible is piled up when the soil is piled up, and the piled up soil is not easily leaked .

The horizontal branch 35b of the fixing pin insertion hole 34 is preferably deep enough to be buried in the fixing pin receiving groove 33.

This is because it is technically difficult to form a groove on the bottom surface of the retaining wall block 30. [

8-22 relate to Korean Patent No. 10-0400169 (wall building block).

As shown in the figure, the blocks 10, which are laminated together to form a retaining wall structure, are formed in a hexahedron having a generally trapezoidal planar shape. The block 10 thus has a front face 11 facing forward, a rear face 13 facing the front face, an upper face 15, a lower face 17 and side faces 19 on both sides. The width of the rear surface 13 in the left and right direction is smaller than that of the front surface 11 so that various curved surface walls curved forward or backward can be formed. Here, the planar shape of the block 10 may be variously formed as needed.

Each of the blocks 10 is provided with a plurality of pin receiving portions 21 formed downward from the upper surface 15 along the stacking direction and the pin receiving portions 21 are provided with pin portions 31 , See Fig. 10) is inserted. The pin receiving portions 21 are spaced apart from each other in the left-right direction. The pin receiving portion 21 has a rectangular cross-sectional shape corresponding to the cross-sectional shape of the pin portion 31 of the engaging pin 30.

Here, the pin receiving portion 21 may have a polygonal or circular cross-sectional shape such as a triangle, a pentagon, etc., depending on the cross-sectional shape of the pin portion 31 of the engaging pin 30. [

The lower surface 17 of the block 10 is provided with a plurality of pin head receiving portions 23 depressed from the lower surface 17 corresponding to the pin receiving portions 21 on the laminated surfaces of adjacent blocks. The pin head receiving portion 23 receives the pin head portion 33 (see Fig. 3) of the engaging pin 30 to be described later. Then, the pin head receiving portion 23 is displaced forward with respect to the axis of the pin receiving portion 21. The pin head accommodating portion 23 is a mounting surface of the block 10 in the pin head accommodating portion 23 where the contact portion of the pin head portion 33 of the engaging pin 30 contacts, (23a) is in communication with the pin receiving portion (21) so as to coincide with the rear wall surface in the pin receiving portion (21). The pin head receiving portion 23 has a rectangular cross-sectional shape.

Between the pin receiving portion 21 and the pin head receiving portion 23 and the rear surface 13 is provided an opening 25 vertically penetrating from the upper surface 15 to the lower surface 17. This opening 25 serves to reduce the weight of the block 10 and can be filled with mortar or aggregate and / or gravel in a stacked state.

The coupling pin 30 for the block retaining wall structure is formed by a pin portion 31 on a rod inserted into the pin receiving portion 21 of the block 10 and a pin portion 31 formed on one end portion of the pin portion 31, Is received in the pin head receiving portion 23 so as to come into contact with at least one inner wall surface of the accommodating portion 23 and has a radial contact distance from the axis of the fin portion 31 to the inner wall surface of the pin head receiving portion 23, And a pin head portion 33 having a plurality of contact portions at different distances from each other. The coupling pin 30 is made of metal, plastic, concrete molding or the like, which is easy to mold and has a sufficient shear strength.

The pin portion 31 has a rectangular cross-sectional shape corresponding to the pin receiving portion 21 of the block 10.

Here, the fin portion 31 may have a polygonal or circular cross-sectional shape such as a triangle, a pentagon, or the like depending on the cross-sectional shape of the pin receiving portion 21 of the block 10.

On the other hand, the pin head portion 33 is formed to extend larger than the cross-sectional area of the fin portion 31. [ As shown in Fig. 11, the pin head portion 33 has a rectangular cross-sectional shape and has a different protruding distance of four patterns in the radial direction with respect to the axis of the fin portion 31. [ The D-plane of the pin head portion 33 whose one side of the pin head portion 33 coincides from the one side of the fin portion 31 to the vertical extension line forms a distance d 0 in which the protruding distance is zero or zero , And the other sides A, B, and C are configured so that the distances sequentially increase as d 1 <d 2 <d 3.

12 to 15, when the engaging pin 30 is engaged with the pin receiving portion 21 of the block 10, the mounting reference surface 23a in the pin head accommodating portion 23 of the block 10 is inserted into the pin receiving portion 21, 11 (D) of FIG. 11) that is in contact with one side surface of the pin head portion 33, that is, on the upper side of the vertical extension line of one side surface of the fin portion 31 And one side face of the pin head portion 33 whose distance is almost zero (d 0 in FIG. 11) is directed to the back of the block 10. The blocks are stacked such that the contact portion of the pin head portion 33 on the block 10 to which the coupling pin 30 is coupled comes into contact with the mounting reference surface 23a in the pin head receiving portion 23 of another adjacent block. In addition, since the pin receiving portions 21 of the respective blocks 10 are kept at a constant interval, the stacked blocks 10 are staggered so as to maintain a constant interval in the left and right direction. When the blocks are sequentially stacked upward by the above-described method, the blocks stacked on the upper side are always on the same vertical line because the distances from the front to the rear of the lower blocks are almost zero. Accordingly, each of the stacked blocks 10 forms a retaining wall structure of a vertical wall in a substantially vertical state. The opening 25 of each of the stacked blocks 10 is filled with mortar, aggregate, and / or gravel so that the retaining wall structure itself is firmly bonded to prevent the collapse of the gravel. These retaining wall structures of vertical walls are low in height and are used where there is no earth pressure resistance.

When the engaging pin 30 is engaged with the pin receiving portion 21 of the block 10 as shown in Figs. 16 to 20, the mounting reference surface 23a in the pin head receiving portion 23 of the block 10 (C in Fig. 11) of the pin head portion 33 spaced apart by a distance d3 from the upper side of the vertical extension line of one side of the pin portion 31 toward the rear of the block 10 . The blocks are stacked such that the contact portion of the pin head portion 33 on the block 10 to which the coupling pin 30 is coupled comes into contact with the mounting reference surface 23a in the pin head receiving portion 23 of another adjacent block. In addition, since the pin receiving portions 21 of the respective blocks 10 are kept at a constant interval, the stacked blocks 10 are staggered so as to maintain a constant interval in the left and right direction. When another block is sequentially stacked upward by the above-described method, the blocks stacked on the upper part are separated from the front block by the distance d 3 from the lower block to form a step. Accordingly, each of the stacked blocks 10 forms a retaining wall structure which is formed at an angle with respect to the vertical line and is inclinedly formed. 20, the blocks 10 are buried from the ground, and the openings 25 of each of the blocks 10, which are formed in a step-like shape and are inclined, are filled with mortar, aggregate and / or gravel, The retaining wall structure itself is firmly bonded to prevent the collapse of the earths. The retaining wall structure of the inclined wall is higher than the retaining wall structure of the vertical wall, and is used where the resistance of the earth pressure is large.

When the engaging pin 30 is engaged with the pin receiving portion 33 of the block 10, the pin portion 31 is brought into contact with the mounting reference surface 23a in the pin head receiving portion 23 of the block 10, (A or B in Fig. 4) of the pin head portion 33 spaced apart by a distance d1 or d2 from the upper side of the vertical extension line of one side of the block 10 may face the rear of the block 10. [ Then, when another block is sequentially stacked upward, a block stacked on the upper portion forms a step while being spaced backward from the front by a distance of d 1 or d 2 with respect to the lower block. Thus, each of the stacked blocks may form a retaining wall structure that forms various angles with respect to the vertical line and is formed in an inclined manner.

As shown in FIGS. 21 and 22, the pin head receiving portion 123 may be formed in a groove-like shape in the left-right direction of the block 110.

With this configuration, when the upper and lower blocks 110 are stacked in the left-right direction, the degree of displacement between the upper and lower blocks 110 can be kept constant.

However, the above-described conventional techniques have the following problems.

First, it is advantageous to use a single pin, but it is possible to change the inclination of the retaining wall by block building due to the change of the coupling method. However, since a considerably large through hole is formed in the deep portion of the block, It is disadvantageous to strength.

Secondly, since the pin is inserted into the central portion of the block, it is required that the pin is inserted into the upper insertion hole of the lower block and the upper end of the pin is inserted into the lower insertion hole of the upper block with the upper block being entirely lifted. This is not good.

Third, since the coupling pin is located in the inner region of the block, it is not possible to join the stiffener such as the grid, and a separate stiffener engagement structure should be formed for the block.

The reference numerals of the prior art are intended to be limited only by the description of the prior art.

Korean Registered Practitioner Bulletin No. 20-0354134 (Block Type Reinforced Earth Retaining Wall) Korean Patent No. 10-0460284 (combination of ecological blocks) Korean Patent No. 10-0400169 (block for building a wall)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a retaining wall using a retaining pin which is excellent in workability and can be combined with a reinforcing member without adversely affecting the strength of the block. .

A plurality of blocks 100 having a front wing 110, a connecting portion 120 and a rear wing 130 are vertically formed by a fixing pin 200 A narrow width portion 131 is formed on one of upper and lower sides of the rear wing portion 130 and a wider portion having a wider width than the narrow width portion 131 is provided on the other of the upper and lower portions of the rear wing portion 130 The wide insertion portion 220 is formed on one side of the fixing pin 200 so that the wider portion 132 of the rear wing portion 130 is inserted. And a narrow insertion portion (230) is formed on the other of the upper and lower portions to insert a narrow portion (131) of the rear wing portion (130).

When the narrow width portion 131 of the rear wing portion 130 of the block 100 is set to face upward and the wide insertion portion 220 of the fixing pin 200 is installed to face upward, The narrow width portion 131 of the rear wing portion 130 of the lower block 100b among the plurality of blocks 100 is inserted into the narrow width insertion portion 230 of the fixing pin 200, It is preferable that the wide portion 132 of the rear wing portion 130 of the upper block 100a is inserted into the wide insertion portion 220 of the fixing pin 200 so that the retaining wall forms a steeply- .

When the wider portion 132 of the rear wing portion 130 of the block 100 faces upward and the narrow insertion portion 230 of the fixing pin 200 faces upward, The narrow width portion 131 of the rear wing portion 130 of the upper block 100a of the plurality of blocks 100 is inserted into the narrow width insertion portion 230 of the fixing pin 200, It is preferable that the retaining wall has a vertical structure or a milder slope structure by inserting the wide portion 132 of the rear wing portion 130 of the middle block 100b into the wide insertion portion 220 of the fixing pin 200 Do.

The front end of the narrow portion 131 is formed behind the front end of the wide portion 132 and the rear ends of the narrow portion 131 and the wide portion 132 are formed in a stepped structure .

The fixing pin 200 includes a central connection part 210; One end side protrusion 221 and one end side protrusion 231 extending from one end of the central connection part 210 to one side and the other side; And the other single side protrusion 222 and the other minor side protrusion 232 extended from the other end of the central connection part 210. The single side protrusion 222 and the other single side protrusion 222 The wide insertion portion 220 is formed such that the wider portion 132 of the rear wing 130 is inserted and the rear wing portion 130 is formed between the one end side projecting portion 231 and the other end side projecting portion 232 The narrow insertion portion 230 may be formed so that the narrow portion 131 of the narrow insertion portion 230 is inserted.

It is preferable that the end portion of the one end protruding portion 221, the one end side protruding portion 231, the other single side protruding portion 222 and the other end protruding portion 232 is formed with an annular bent portion a outwardly.

The friction increasing protrusion 240 is formed on at least one of the central connecting portion 210, the one-side protrusion 221, the one-side protrusion 231, the other single-side protrusion 222 and the other-side protrusion 232 Is preferably formed.

The friction increasing protrusion 240 preferably includes a plurality of ring portions 241 formed at mutually spaced intervals.

It is preferable that the rear wing portion 130 is formed in a curved structure in which the front portion is recessed and the rear portion is protruded.

It is preferable that the insertion groove 133 of the fixing pin 200 is formed on both sides of the narrow width portion 131 of the rear wing portion 130.

It is preferable that a jaw portion 134 is formed on both sides of the insertion groove 133 of the rear wing portion 130 so as to limit the installation position of the fixing pin 200. [

The present invention proposes a retaining wall that does not adversely affect the strength of a block, has a good workability, and can be combined with a reinforcing member.

1 to 3 are views of Korean Registered Practice Bulletin No. 20-0354134 (Block Type Reinforced Earth Retaining Wall).
Figs. 4 to 7 are views of Korean Patent No. 10-0460284 (a combination of ecological blocks). Fig.
8 to 22 are views of Korean Patent No. 10-0400169 (block for building a wall).
23 shows an embodiment of the present invention,
23 is a plan view of the block.
24 is a side cross-sectional view of the block.
25 is a side view of the first embodiment of the fixing pin;
26 is a perspective view of a first embodiment of a fixing pin;
27 is a side sectional view of the first embodiment of the retaining wall.
28 is a coupled state view of the first embodiment of the retaining wall.
29 is a perspective view of a first embodiment of a retaining wall.
30 is a side cross-sectional view of a second embodiment of a retaining wall.
31 is an assembled state view of a second embodiment of a retaining wall.
32 is a perspective view of a second embodiment of a retaining wall;
33 is a side view of the second embodiment of the fixing pin;
34 is a plan view of the first embodiment of the engaging structure of the retaining wall.
35 is a plan view of the second embodiment of the engaging structure of the retaining wall.
36 is a plan view of the third embodiment of the engagement structure of the retaining wall.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

23, the present invention basically comprises a plurality of blocks 100 each including a front wing 110, a connecting portion 120, and a rear wing 130, The present invention relates to a retaining wall which is formed by being built with

A narrow width portion 131 is formed on one of upper and lower sides of the rear wing portion 130 and a wide width portion 132 having a wider width than the narrow width portion 131 is formed on the other of the upper and lower portions of the rear wing portion 130 (Figs. 23 and 24).

The wide insertion portion 220 is formed on one side of the fixing pin 200 so as to insert the wider portion 132 of the rear wing portion 130 and the rear wing portion 130 The narrow insertion portion 230 is formed so that the narrow portion 131 of the narrow insertion portion 230 is inserted (Figs. 25 and 26).

This can form a retaining wall having the following two kinds of inclination.

First, it is a case of forming a steep slant structure (Figs. 27 to 29).

When the narrow width portion 131 of the rear wing portion 130 of the block 100 is set to face upward and the wide insertion portion 220 of the fixing pin 200 is installed to face upward, The narrow width portion 131 of the rear wing portion 130 of the lower block 100b of the fixing block 100 is inserted into the narrow width insertion portion 230 of the fixing pin 200 and the upper block 100a The wide portion 132 of the rear wing portion 130 of the fixing pin 200 is inserted into the wide insertion portion 220 of the fixing pin 200 so that the retaining wall forms a steep slanting structure toward the upper side.

Second, it is a vertical structure or a mild slope structure (mild slope relative to the above steep slope) (Figs. 30 to 32).

When the wider portion 132 of the rear wing portion 130 of the block 100 faces upward and the narrow insertion portion 230 of the fixing pin 200 faces upward, The narrow width portion 131 of the rear wing portion 130 of the upper block 100a of the fixing block 100 is inserted into the narrow width insertion portion 230 of the fixing pin 200 and the lower block 100b The wide portion 132 of the rear wing portion 130 of the fixing pin 200 is inserted into the wide insertion portion 220 of the fixing pin 200 so that the retaining wall has a vertical structure or a milder slant structure.

That is, the block 100 and the fixing pin 200 of one type (identical structure) are used, and the fixing pin 200 is fixed in such a manner as to be fitted to the surface of the rear wing portion other than the through hole of the block 200, 100) and the fixing pin 200 (Fig. 27), and the inclination of the retaining wall is changed according to whether the fixing pin 200 is installed upside down (Fig. 30).

Therefore, the following effects can be obtained.

First, since no separate through-hole is formed in the deep portion of the block as in the prior art, the strength of the block is not adversely affected.

Secondly, since the fixing pin is fitted to the rear wing portion of the block, the fixing pin is engaged with the rear wing portion of the lower block, and only the rear wing portion of the upper block is placed on the upper surface of the lower block. It can be lifted up and coupled to the fixing pin, so that the workability is excellent.

Thirdly, since it is located in the rear region of the block of the fixing pin, it is possible to combine the stiffener such as the grid, and there is no need to form a separate stiffener holding structure for the block.

The front end of the narrow portion 131 is formed behind the front end of the wide portion 132 and the rear end of the narrow portion 131 and the wide portion 132 have a stepped structure formed on the same line along the vertical direction, The above-mentioned effect can be obtained more stably (Fig. 24).

A protrusion 111 is formed on one of upper and lower parts of a front wing part 110 of the block 100 and a groove part 112 is formed on the other side to insert a protrusion 111 of another block. The size of the groove 112 is larger than the size of the projection 111. [

27), the protrusion 111 of the block 100 is disposed above the groove 112, the groove 112 is disposed below the protrusion 111, In the case of the structure or the milder slant structure (FIG. 30), since the block 100 is installed upside down, the groove portion 112 of the block 100 is arranged above and the projecting portion 111 is arranged below.

When the upper and lower blocks are disengaged from each other due to the damage of the fixing pin 200 or the like, the engagement structure of the protrusion 111 and the groove 112 temporarily prevents the upper block from being caught by the lower block So that the stability of the retaining wall can be increased.

The fixing pin 200 specifically includes a central connecting portion 210; One end side projecting portion 221 and one end side projecting portion 231 extending from one end of the central connection portion 210 to one side and the other side; And the other single side projecting portion 222 and the other end side projecting portion 232 extending from the other end of the central connecting portion 210 (Figs. 25 and 26).

The wide insertion portion 220 is formed such that the wider portion 132 of the rear wing portion 130 is inserted between the one side projecting portion 221 and the other single side projecting portion 222. The other end side projecting portion 231, The narrow insertion portion 230 is formed between the side projecting portions 232 so that the narrowed portion 131 of the rear wing portion 130 is inserted.

When the annular portion a bent outward is formed at the ends of the one side projecting portion 221, the one end side projecting portion 231, the other single side projecting portion 222 and the other end side projecting portion 232, Or the like can be stably joined by the projecting portion and the hook portion.

That is, when only the upper projections 221, 231, 222, and 232 project only toward the upper side or the lower side, there is a fear that the stiffener coupled to the upper projections 221 is displaced from the fixing pin 200 due to sliding or the like. In the end portions of the upper projections 221, 231, 222, In the case where the annular portion (a) is formed, such separation can be prevented.

The fixing pin 200 is preferably formed of a synthetic resin material in terms of ease of manufacture, workability, and structural stability.

At least one of the central connecting portion 210 of the fixing pin 200, the one end side projecting portion 221, the one end side projecting portion 231, the other single side projecting portion 222 and the other end side projecting portion 232, When the protrusion 240 is formed, the structural stability of the entire retaining wall can be increased as the coupling force with the block 100 is increased.

The friction increasing protrusion 240 can be realized by a plurality of ring portions 241 formed at mutually spaced intervals.

25 and 26, since the one-side protrusion 221 and the one-side protrusion 231 have a straight structure, the fixing pin 200 according to the embodiment of FIGS. do.

When the one end side protrusion 221 and the one end side protrusion 231 form a stepped structure like the fixing pin 200 according to the embodiment of FIG. 33 (the other single side protrusion 222 and the other side protrusion 232) , And when the coupling structure of Fig. 30 is taken, the retaining wall of the mild-slope structure is formed.

In addition to the use of the upper fixing pin 200, when the rear wing portion 130 is recessed forward and formed with a curved structure with a protruding rear portion, an advantage that the linearity of the retaining wall surface can be easily adjusted is added.

When the upper block 100a and the lower block 100b having such a structure are staggered, the lower left side of the curved rear side wing portion 130a of the upper block and the lower side upper surface of the curved rear side wing portion 130b of the lower block The fixing pin 200 is installed between the rear wing portion 130a of the upper block and the rear wing portion 130a of the lower block, And the fixing pin 200 is positioned at the intersection of the upper portion 130a and the lower portion 130b.

However, since both the rear wing portion 130a of the upper block and the rear wing portion 130b of the lower block have a curved structure, the intersection point (the point at which the fixing pin can be inserted) It is set as a point.

The fixing pin 200 is positioned at the intersection of the rear wing portion 130a of the upper block and the rear wing portion 130b of the lower block at the time of constructing the normal straight line section (FIG. 34).

When the corner portion (in the case where the front surface of the retaining wall protrudes) is constructed, the fixing pin 200 is located at the intersection point inside the upper center intersection point (Fig. 35).

When the corner portion (when the front surface of the retaining wall is recessed) is constructed, the fixing pin 200 is located at an intersection point outside the upper center intersection point (FIG. 36).

In other words, the coupling angle of the block is determined according to the installation position of the fixing pin 200.

Therefore, it is possible to easily align the linear shape of the retaining wall by merely providing the fixing pin 200 at a predetermined position without the need for a separate linear confirmation operation.

Insertion grooves 133 of the fixing pins 200 are formed at both sides of the narrow width portion 131 of the rear wing portion 130. This serves to stably insert the central connecting portion 210 of the fixing pin 200 do.

Jaw portions 134 are formed on both sides of the insertion groove 133 of the rear wing portion 130 so as to limit the installation position of the fixing pin 200. This is achieved by limiting the range of change in the angle of engagement of the blocks , 36), thereby enabling stable building of the block.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

100, 100a, 100b: block 110: front wing
120: connection part 130: rear wing part
131: narrow width part 132: wide width part
133: insertion groove 134: jaw
200: fixing pin 210: central connecting portion
220: Wide insertion portion 221:
222: other single side projecting portion 230: narrower insertion portion
231: one end protruding portion 232: one end protruding portion
240: Friction increase protrusion 241: Ring portion

Claims (11)

A retaining wall formed by vertically forming a plurality of blocks 100 having a front wing 110, a connecting portion 120 and a rear wing 130 by a fixing pin 200,
A narrow width portion 131 is formed on one side of the rear wing portion 130 and a wide width portion 132 having a width larger than the narrow width portion 131 is formed on the other of the upper and lower sides of the rear wing portion 130 Formed,
A wide insertion portion 220 is formed at one side of the fixing pin 200 so as to insert the wider portion 132 of the rear wing portion 130 and a wedge insertion portion 220 is formed at the other side of the fixing pin 200, The narrow insertion portion 230 is formed to insert the narrow portion 131 of the wing portion 130,
The fixing pin (200)
A central connection 210;
One end side protrusion 221 and one end side protrusion 231 extending from one end of the central connection part 210 to one side and the other side;
And the other single side protrusion 222 and the other side protrusion 232 extended from the other end of the central connection part 210,
An annular bent portion a is formed at the ends of the one end side projecting portion 221, the one end side projecting portion 231, the other single side projecting portion 222 and the other end projecting portion 232,
At least one of the central connecting portion 210, the one-side protruding portion 221, the one-side other-side protruding portion 231, the other single-side protruding portion 222 and the other-side protruding portion 232 has a plurality of ring- And a frictional thickening protrusion (240) including the protrusion (241) is formed. The method according to claim 1,
When the narrow width portion 131 of the rear wing portion 130 of the block 100 is set to face upward and the wide insertion portion 220 of the fixing pin 200 is installed to face upward, The narrow width portion 131 of the rear wing portion 130 of the lower block 100b among the plurality of blocks 100 is inserted into the narrow width insertion portion 230 of the fixing pin 200, The wide portion 132 of the rear wing portion 130 of the upper block 100a is inserted into the wide insertion portion 220 of the fixing pin 200 so that the retaining wall has a steeply- The retaining wall. The method according to claim 1,
When the wider portion 132 of the rear wing portion 130 of the block 100 faces upward and the narrow insertion portion 230 of the fixing pin 200 faces upward, The narrow width portion 131 of the rear wing portion 130 of the upper block 100a of the plurality of blocks 100 is inserted into the narrow width insertion portion 230 of the fixing pin 200, The wide portion 132 of the rear wing 130 of the middle block 100b is inserted into the wide insertion portion 220 of the fixing pin 200 so that the retaining wall has a vertical structure or a milder slant structure . The method according to claim 1,
The front end of the narrow portion 131 is formed behind the front end of the wide portion 132 and the rear ends of the narrow portion 131 and the wide portion 132 are formed in a stepped structure . The method according to claim 1,
The wide insertion portion 220 is formed between the one-side protrusion 221 and the other single side protrusion 222 so that the wide portion 132 of the rear wing portion 130 is inserted,
Wherein the narrow insertion portion (230) is formed between the one-side protrusion (231) and the other-side protrusion (232) to insert the narrow portion (131) of the rear wing portion (130). delete delete delete The method according to claim 1,
Wherein the rear wing portion (130) is formed in a curved structure in which the front portion is recessed and the rear portion is protruded. 10. The method of claim 9,
Wherein an insertion groove (133) of the fixing pin (200) is formed on both sides of the narrow width portion (131) of the rear wing portion (130). 11. The method of claim 10,
Wherein a jaw portion (134) is formed on both sides of the insertion groove (133) of the rear wing portion (130) so as to restrict an installation position of the fixing pin (200).

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