KR20020002225A - Block retaining wall construction and interlocking pin therefor - Google Patents

Abstract

PURPOSE: A block retaining wall and a coupling pin thereof are provided to selectively build retaining walls of various inclined angles by using a singular block. CONSTITUTION: Plural pin receiving portions are formed along the layering direction of respective blocks. Plural pin head receiving portions recessed from a lower face corresponding to the pin receiving portions are prepared. A block retaining wall coupling pin(30) includes a stick type pin portion(31) inserted to the pin receiving portion and a pin head portion(33) having a contacting portion. The pin head portion is received in the pin head receiving portion while contacting to at least one inner face of the pin head receiving portion. By layering blocks in a specific coupling direction using the coupling pin, retaining wall of various inclined angles are constructed.

Description

BLOCK RETAINING WALL CONSTRUCTION AND INTERLOCKING PIN THEREFOR}

The present invention relates to a block retaining wall structure and a retaining pin for a block retaining wall structure having a plurality of blocks stacked on each other, and more particularly, to a block retaining wall structure and a block retaining wall structure for selecting a variety of inclination angles of the retaining wall. It's about a pin.

Block retaining wall structure is used to prevent the falling and collapse of the soil in the embankment and the like, a plurality of blocks are stacked on each other to form the retaining wall.

Such blocks for retaining wall structures are disclosed in US Pat. Nos. 3,783,566, 4,802,320, and the like.

In a conventional block retaining wall structure, the blocks are arranged horizontally and then sequentially stacked thereon, and pins on a rod are inserted over openings formed in the upper and lower blocks for interlocking between upper and lower blocks. These pins allow blocks to form generally vertical walls and limit lateral movement between the blocks to prevent deformation or collapse of the retaining wall.

However, in the conventional block, since the shape of the pin and the position of the opening for accommodating the pin are specified in advance, there is a problem that the inclination angle of the retaining wall cannot be arbitrarily selected depending on the situation. That is, in order to obtain a retaining wall having an arbitrary inclination angle, a new block in which the position of the pin number opening of each block is set according to the inclination angle must be manufactured. Therefore, in the conventional block retaining wall structure, many kinds of blocks corresponding to the inclination angle of the retaining wall are required.

Accordingly, it is an object of the present invention to provide a block retaining wall structure and a coupling pin for a block retaining wall structure capable of selectively constructing a retaining wall having various inclination angles using a single type of block.

1 is a perspective view of a block for a block retaining wall structure according to a first embodiment of the present invention;

2 is a cross-sectional view taken along the line II-II of FIG. 1,

3 is a perspective view of a coupling pin for a block retaining wall structure according to an embodiment of the present invention;

4 is a bottom view of FIG. 3,

5 is a perspective view showing a first coupling state of a block and a coupling pin according to the present invention;

6 is a plan view of FIG. 5,

7 is a perspective view of a block retaining wall structure according to an embodiment of the present invention laminated using the first coupling state of the block and the coupling pin of FIG.

8 is a longitudinal cross-sectional view of FIG. 7;

9 is a perspective view showing a second coupling state of the block and the coupling pin according to the present invention,

10 is a plan view of FIG. 9,

FIG. 11 is a perspective view of a block retaining wall structure according to another embodiment of the present invention stacked using the second coupling state of the block and the coupling pin of FIG. 9;

12 is a longitudinal cross-sectional view of FIG. 11;

13 is a cross-sectional view of the installation of Figure 11,

14 is a perspective view of a block for wall retaining wall structure according to the second embodiment of the present invention;

15 is a cross-sectional view taken along the line XV-XV of FIG. 14,

16 is a perspective view of a block for wall retaining structure according to a third embodiment of the present invention;

17 is a cross-sectional view taken along the line XVII-XVII in FIG. 16,

18 is a plan view of a block retaining wall structure composed of blocks according to the present invention having a curved front surface and having an inclination.

* Explanation of symbols for the main parts of the drawings

10,110,210: Block 21,121,221: Pin accommodation part

23,123,223: Pin head accommodation part 25,125,225: Open part

30: coupling pin 31: pin portion

33: pin head portion

In order to achieve the above object, the present invention is a block retaining wall structure having a plurality of blocks stacked on each other, at least one pin receiving portion formed in each of the blocks along the stacking direction; At least one pin head accommodation portion recessed along a stacking direction from a stacking surface so as to correspond to the pin accommodation portion of another block adjacent to each block; A pin-shaped pin portion inserted into the pin receiving portion of the block, and formed at one end of the pin portion and received in the pin head receiving portion to be in contact with at least one inner wall surface of the pin head receiving portion, the pin from the axis of the pin portion. It provides a block retaining wall structure, characterized in that it comprises a coupling pin having a pin head portion having a plurality of contact portions in the radial contact distance to the inner wall surface of the head receiving portion.

Here, when the pin receiving part and the pin head receiving part of each block communicate with each other along the stacking direction, the structure of the block and the molding die can be simplified.

In order to facilitate positioning of the coupling pin, it is preferable that the cross-sectional shapes of the pin accommodation portion, the pin head accommodation portion and the pin portion be polygonal.

In addition, when the pin receiving portion is formed in a groove shape along the left and right directions, the gap between the upper and lower blocks can be arbitrarily selected when the upper and lower blocks are stacked alternately in the left and right directions.

The present invention also provides a coupling pin for a block retaining wall structure for binding the aforementioned blocks.

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

1 is a perspective view of a block for wall retaining structure according to a first embodiment of the present invention, Figure 2 is a cross-sectional view taken along the line II-II of FIG. As shown in these figures, the blocks 10, which are stacked on each other to form the retaining wall structure, are formed of a cube having a generally trapezoidal planar shape. Thus, the block 10 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 surfaces 19 of both sides. The left and right widths of the rear surface 13 are smaller than those of the front surface 11, whereby curved surfaces of various shapes curved forward or backward can be formed. Here, the planar shape of the block 10 may be formed in various ways as necessary.

Each block 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 have pin portions 31 of the coupling pins 30 to be described later. , See FIG. 3). Each pin receiving portion 21 has a predetermined interval in the left and right directions. The pin receiving portion 21 has a rectangular cross-sectional shape corresponding to the cross-sectional shape of the pin portion 31 of the coupling pin 30. Here, the pin receiving portion 21 may have a polygonal or circular cross-sectional shape such as a triangle, a pentagon, or the like according to the cross-sectional shape of the pin portion 31 of the coupling pin 30.

The lower surface 17 of the block 10 is provided with a plurality of pin head accommodation portions 23 recessed from the lower surface 17 corresponding to the pin accommodation portions 21 of the stacked surfaces of other adjacent blocks. The pin head accommodation portion 23 accommodates the pin head portion 33 (see FIG. 3) of the coupling pin 30 to be described later. The pin head accommodation portion 23 is biased forward with respect to the axis of the pin accommodation portion 21. In addition, the pin head accommodation portion 23 is an installation reference surface of the blocks 10 stacked on each other, and the rear wall surface in the pin head accommodation portion 23 in contact with the contact portion of the pin head portion 33 of the coupling pin 30. The 23a is in communication with the pin accommodation portion 21 so as to coincide with the rear wall surface in the pin accommodation portion 21. The pin head accommodation portion 23 has a rectangular cross-sectional shape.

An opening 25 is vertically penetrated from the upper surface 15 to the lower surface 17 between the pin accommodation portion 21, the pin head accommodation portion 23, and the rear surface 13. The opening 25 serves to reduce the weight of the block 10 and may be filled with mortar or aggregate and / or soil in a stacked state.

On the other hand, Figure 3 is a perspective view of a coupling pin for a block retaining wall structure according to an embodiment of the present invention, Figure 4 is a bottom view of Figure 3. As shown in these figures, the coupling retaining pin 30 for the block retaining wall structure is formed on a rod-like pin portion 31 inserted into the pin receiving portion 21 of the block 10 and at one end of the pin portion 31. And is received in the pin head accommodation portion 23 so as to contact at least one inner wall surface of the pin head accommodation portion 23 of the block 10 and extends from the axis of the pin portion 31 to the inner wall surface of the pin head accommodation portion 23. It includes a pin head portion 33 having a plurality of contacts with different radial contact distances, ie radially projecting distances. Coupling pin 30 is made of metal, plastic, concrete molding, etc., which are easy to mold and have 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 pin part 31 may have a polygonal or circular cross-sectional shape such as a triangle, a pentagon, and the like according to 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 pin portion 31. As shown in FIG. 4, the pin head portion 33 has a rectangular cross-sectional shape and has four different projection distances in the radial direction with respect to the axis of the pin portion 31. The D surface of the pin head portion 33 in which one side surface of the pin head portion 33 coincides with a vertical extension line from one side surface of the pin portion 31 forms a distance d ₀ of a protruding distance of zero or close to zero. , A, B, and C, which are other aspects, are configured to have a value in which the distance increases in sequence as d ₁ < d ₂ < d ₃ .

Next, a block retaining wall structure installed using a block and a coupling pin according to an embodiment of the present invention described above will be described in detail with reference to the accompanying drawings.

First, Figure 5 is a perspective view showing a first coupling state of the block and the coupling pin according to the present invention, Figure 6 is a plan view of FIG. And, Figure 7 is a perspective view of a block retaining wall structure according to an embodiment of the present invention laminated using the first coupling state of the block and the coupling pin of Figure 5, Figure 8 is a longitudinal cross-sectional view of FIG. As shown in these figures, when the coupling pin 30 is coupled to the pin receiving portion 21 of the block 10, it contacts the installation reference surface 23a in the pin head receiving portion 23 of the block 10. As a contact portion, a surface coinciding with one side surface of the pin head portion 33 above the vertical extension line on one side of the pin portion 31, that is, spaced apart from the upper side of the vertical extension line on one side of the pin portion 31 One side of the pin head portion 33 having a distance of almost zero (d _{0 in} FIG. 4) is installed to face the rear of the block 10. Then, 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 is in contact with the installation reference surface 23a in the pin head accommodation portion 23 of another adjacent block. In addition, since the pin receiving portions 21 of the respective blocks 10 maintain a constant interval, the stacked blocks 10 are stacked alternately so as to maintain a constant interval in the left and right directions. When the blocks are sequentially stacked in the above manner, the distances of the blocks stacked on the upper side from the front to the rear of the lower blocks are almost zero, so that they are always positioned on the same vertical line. Accordingly, each of the stacked blocks 10 forms a retaining wall structure of the vertical wall which is almost vertical. Then, by filling the open portion 25 of each stacked block 10 with mortar or aggregate and / or earth and sand, the retaining wall structure itself is firmly coupled to prevent the earth and sand collapse. This retaining wall structure of the vertical wall is used where the height is low and there is no resistance of earth pressure.

Next, Figure 9 is a perspective view showing a second coupling state of the block and the coupling pin according to the present invention, Figure 10 is a plan view of FIG. And, Figure 11 is a perspective view of a block retaining wall structure according to another embodiment of the present invention laminated using the second coupling state of the block and the coupling pin of Figure 9, Figure 12 is a longitudinal cross-sectional view of Figure 11, Figure 13 It is an installation cross section figure of FIG. As shown in these figures, when the coupling pin 30 is coupled to the pin receiving portion 21 of the block 10, it contacts the installation reference surface 23a in the pin head receiving portion 23 of the block 10. As the contact portion, one side surface (C of FIG. 4) of the pin head portion 33 spaced apart by a distance of d ₃ from the vertical extension line on one side of the pin portion 31 is provided to face the rear of the block 10. . Then, 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 is in contact with the installation reference surface 23a in the pin head accommodation portion 23 of another adjacent block. In addition, since the pin receiving portions 21 of the respective blocks 10 maintain a constant interval, the stacked blocks 10 are stacked alternately so as to maintain a constant interval in the left and right directions. When the other blocks are sequentially stacked in the above manner, the blocks stacked on the upper side are spaced from the front to the rear by a distance d ₃ with respect to the lower block to form a step. Accordingly, each of the stacked blocks 10 forms a retaining wall structure that is inclined to form a predetermined angle with respect to the vertical line. Thus, as shown in Figure 13, by filling the block 10 from the ground, and filling the opening 25 of each block 10, which is stacked obliquely in a stepped form mortar or aggregate and / or earth and sand, The retaining wall structure itself is firmly coupled to prevent the collapse of the soil. Such a retaining wall structure of the inclined wall is used where the resistance of the earth pressure is higher than that of the retaining wall structure of the vertical wall.

Here, although not shown, as another embodiment for the coupling of the block and the coupling pin according to the present invention, when coupling the coupling pin 30 to the pin receiving portion 33 of the block 10, block 10 One of the pin head portions 33 which are in contact with the installation reference surface 23a in the pin head accommodation portion 23 of the pin head 31 spaced apart from the vertical extension line on one side of the pin portion 31 by a distance d ₁ or d _2. The side surface (A or B of FIG. 4) may be installed to face the rear of the block 10. And, if another block is sequentially stacked upward, the blocks stacked on the upper side are spaced apart from the front to the rear by a distance d ₁ or d ₂ with respect to the lower block to form a step. Thus, each of the stacked blocks may form a retaining wall structure that is formed inclined at various angles with respect to the vertical line.

On the other hand, Figure 14 is a perspective view of a block retaining wall structure block according to a second embodiment of the present invention, Figure 15 is a cross-sectional view taken along the line XV-XV of FIG. As shown in these figures, in this embodiment, unlike the above-described embodiment, the pin head accommodation portion 123 is formed in the groove shape in the left and right directions of the block 110.

By such a configuration, when the upper and lower blocks 110 are stacked alternately in the left and right directions, the degree of gap between the upper and lower blocks 110 can be kept constant.

FIG. 16 is a perspective view of a block for wall structure according to a third embodiment of the present invention, and FIG. 17 is a cross-sectional view taken along the line XVII-XVII of FIG. 16. As shown in these figures, in this embodiment, unlike the above-described embodiments, the pin receiving portion 221 is formed in a groove shape in the left and right directions of the block 210. The pin head accommodation portion 223 is also formed in a groove shape in the left and right directions of the block 210.

By such a configuration, it is possible to arbitrarily select the degree of the gap between the upper and lower blocks 210 when stacking the upper and lower blocks 210 in the left and right directions.

On the other hand, Figure 18 is a plan view of a block retaining wall structure composed of blocks in accordance with the present invention is curved in front and having a slope. As shown, it is possible to form a curved wall to the rear through the block 110 of the present invention having a trapezoidal cross-sectional shape of the narrow width of the rear surface relative to the width of the front surface. In addition, since the user can select a variety of coupling position and coupling method of the block 110 and the coupling pin 30, it is possible to obtain a variety of curved walls when the front surface of the retaining wall structure, as well as the pin of the block 110 Various types of inclined walls can be obtained by variously selecting a contact state between the installation reference plane in the head accommodation part 123 and the contact part of the pin head part 33 of the coupling pin 30.

In this way, a block having a pin receiving portion formed along the stacking direction and a pin head receiving portion recessed to face the pin receiving portion is provided, and the pin portion is inserted into the pin receiving portion to be in contact with the installation reference plane of the pin head receiving portion. A coupling pin having a pin head portion having a plurality of contact portions with different radial contact distances from the reference plane to the installation reference plane of the pin head accommodation portion, and stacking the blocks by selecting the coupling position of each block and the coupling pin. Blocks stacked along the direction can be easily arranged in the left and right directions. In addition, by selecting the engagement direction of each block and the coupling pin, that is, by contacting the contact portion of the pin head portion of the coupling pin to the installation reference surface of the pin head receiving portion of each block, it is possible to variously select the installation inclination angle of the stacked blocks Will be.

In the above-described embodiments, the pin head accommodation portion of the block and the pin head portion of the coupling pin are limited to have a rectangular cross-sectional shape. However, the pin head accommodation portion of the block is not limited thereto. It may have a cross-sectional shape of the pattern.

In addition, in the above-described embodiments, the installation reference surface of the pin head accommodation portion coincides with the rear wall surface of the pin accommodation portion and the pin accommodation portion and the pin head accommodation portion communicate with each other. Of course, the pin receiving portion and the pin receiving portion may not be in communication with each other.

In addition, each corner portion of the block in the above embodiments is preferably chamfered to facilitate the construction of the curved wall.

On the other hand, the present invention is not limited to the described embodiments, it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

As described above, according to the present invention, a block capable of selectively constructing a retaining wall having various inclination angles by stacking each block by selecting a coupling direction of the block and the coupling pin using a single type of block and the coupling pin. A retaining pin for retaining wall structures and block retaining wall structures is provided.

Claims (5)

In a block retaining wall structure having a plurality of blocks stacked on each other, At least one pin receiving portion formed in each of the blocks along a stacking direction; At least one pin head accommodation portion recessed along a stacking direction from a stacking surface so as to correspond to the pin accommodation portion of another block adjacent to each block; A pin-shaped pin portion inserted into the pin receiving portion of the block, and formed at one end of the pin portion and received in the pin head receiving portion to be in contact with at least one inner wall surface of the pin head receiving portion, the pin from the axis of the pin portion. And a coupling pin having a pin head portion having a plurality of contact portions having different radial contact distances to the inner wall surface of the head receiving portion. The method of claim 1, Block retaining wall structure, characterized in that the pin receiving portion and the pin head receiving portion of each block communicate with each other along the stacking direction. The method of claim 1, Block retaining wall structure, characterized in that the pin receiving portion, the pin head receiving portion and the pin portion has a polygonal cross-sectional shape. The method of claim 1, Block retaining wall structure, characterized in that the pin receiving portion is formed in a groove shape along the left and right directions. In the coupling pin for block retaining wall structure, A pin portion on the rod; And a pin head portion formed at one end of the fin portion, the pin head portion having a plurality of contact portions different in radial distance from an axis of the fin portion.