JP3474908B2 - Retaining wall block - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is constructed by stacking a large number of blocks, that is provided on the inclined along the inclined slopes
About retaining wall block used in the retaining wall.

[0002]

2. Description of the Related Art Conventionally, as a retaining wall constructed by stacking blocks and provided in an inclined shape along an inclined slope, as shown in FIG.
A structure shown in FIG. 1 is known. This retaining wall 1
00 is a fraction digit block 1 as shown in FIG. 11 (B).
1A and a large number of linear plate-shaped blocks 101 each composed of a horizontal girder block 101B are assembled vertically and horizontally and joined together.
As shown in FIG. 1A, the shape of each block 101 stacked is a rectangular parallelepiped. In order to install the whole retaining wall 100 made of this rectangular parallelepiped along the inclined surface of the inclined slope 102, an inclined foundation 103 made of concrete having a triangular cross section is installed below the installation surface, and the inclined surface of the inclined foundation 103 is installed. A retaining wall 100 made of a rectangular parallelepiped was placed on the top.

[0003]

However, in this conventionally known retaining wall 100, since it is necessary to install the inclined foundation 103 on the lower portion of the installation surface with concrete, it is difficult to accurately set the inclination angle. Therefore, it takes time and labor for the construction, which causes the construction cost to rise.

Further, the linear blocks 101A, 101
As many Bs are joined vertically and horizontally, the beam girder 101
It was necessary to shift the A and the cross girder 101B in different steps and join them. Therefore, there is a problem that workability when assembling the block 101 is deteriorated.

It is an object of the present invention to provide a retaining wall block that does not require the formation of a triangular cross-section foundation on site, reduces the labor for construction, and reduces construction cost.

Another object of the present invention is to improve the workability by making it possible to join both the stay girder block and the transverse girder block in a straight line on the same plane when the girder girder block and the girder block are assembled vertically and horizontally. To provide blocks.

[0007]

In order to achieve the above object, the present invention is directed to a restraint girder block in which a plurality of restraint girders are arranged with their block extending directions facing the slope, and a restraint girder is provided between the restraint girder blocks. and a crossbeam blocks arranged in the horizontal direction perpendicular to the block, provided inclined along the inclined slopes and the copy digit block and the cross beams block stacked together when Crossed vertically and horizontally retaining wall in retaining wall blocks to build, the refrain digit blocks, the end junction protrusion lower than the height of the block body heights are provided to protrude, said crossbeam block, the joint impact of the refrain digit block is disposed across the top of the section, the block of the joining projection and the height refrain digit blocks superimposed in the ahead digit blocks and joining end portions provided at both ends of the block to be placed on the joining protrusion Of the body It is formed below the.

Further, the refrain digit block is arranged is I if butted joining projection of the plurality of one another to block the extension direction, joining the inclined slopes side of arranged the ahead digit block decantation face the cross beams block mounted to abut two the joint end portion on the butt section, also on the thrust fit has been two joining projections between the digit blocks ahead the said ahead digit block Two horizontal girder blocks, which are the same as the lateral girder blocks on the side of the slope, are placed with their joint ends abutted against each other.

Further, the reserved digit block is below the block.
Lower fitting part is provided on the surface, and it is inclined compared to the lower fitting part
Close to the slope side and shift the position to fit the top of the block on top
A separate part is provided on which the upper fitting part is placed.
Formed in a shape that can be fitted to the lower fitting part of the girder block
It is

[0010]

Therefore, in the retaining wall of the present invention, the upper retaining girder block is stacked on the upper surface of the lower retaining girder block which is horizontally arranged so that the upper retaining girder block approaches the inclined slope side and is displaced in the horizontal direction. As it goes, the entire retaining wall will be constructed so as to be inclined. Therefore, an inclined foundation made of concrete is unnecessary.

When an upper fitting portion and a lower fitting portion are provided on the upper surface and the lower surface of the retaining girder block, respectively, when stacking, the upper retaining portion of the lower retaining girder block and the upper retaining girder block are stacked. The lower fitting part of is fitted, positioned, and stacked to construct a retaining wall inclined at a predetermined angle.

If the height at which the joint end of the transverse girder block is placed on the joint protrusion of the retaining girder block is less than the height of the block body of the retaining girder block, the retaining girder blocks arranged in parallel are The transverse girder blocks installed between them do not interfere with the stacking of the restraint girder blocks.

Further, ahead digit block is arranged to be butted joining projection of the plurality of one another to block the extension direction, on the joint impact of the inclined slopes side arranged ahead digit blocks decantation face Two cross girder blocks are placed in abutment with each other, and the same girder as the cross girder block on the slope side is straddled over the two butted joint projections between the restraint girder block and the restraint girder block. When two blocks are placed with their joint ends butted against each other, the restraint girder blocks and the transverse girder blocks are joined in a straight line without being staggered. Further, when a plurality of restraint girder blocks are butted, the same transverse girder block can be used at the end of the sloped slope of the restraint girder block arranged on the sloped slope and the abutting position of the restraint girder blocks.

[0014]

Embodiments of the present invention will be described below with reference to FIGS.

1 to 3 show a retaining wall block of the present invention. This retaining wall has an inclined slope 31 in the block extension direction.
Of the restraint girder blocks 1A to 1H and the restraint girder block 1 between the restraint girder blocks 1A to 1H.
A cross girder block 2 arranged in the horizontal direction orthogonal to A to 1H
A to 2F and front blocks 3A to 3C arranged on the retaining girder blocks 1E to 1H in front of the retaining wall, and these retaining girder blocks 1A to 1H, horizontal girder blocks 2A to 2F, and front blocks 3A to 3C. Are assembled vertically and horizontally, and the assembled ones are stacked one above the other to be constructed in an inclined shape along the sloped surface 31. Although only three layers are shown in FIG. 1 in this embodiment, a large number of layers are usually formed by this.

Here, each of the blocks 1A to 1H,
In the present embodiment, 2A to 2F and 3A to 3C are made of precast concrete.

Further, the restraint girder blocks 1A to 1H are provided in two types, that is, a block 1E to 1H at a front stage (a side away from the slope) and a block 1A to 1D at a rear stage (on the slope side). The blocks 1E to 1H and 1A to 1D of the steps are arranged so as to abut each other in the block extension direction. As shown in FIGS. 1 and 4, the restraint digit blocks 1E to 1H in the preceding stage are
Fitting groove 4 for fitting front blocks 3A to 3C on the front upper surface
Is formed, and the joint protrusion 5 is provided at the rear end. The fitting groove 4 is formed in such a size that two front blocks 3A to 3C are fitted and fixed. Refrain digit block 1A~1D of the rear stage, as shown in FIGS. 1 and 5, respectively joining protrusion 6,7 to front and rear ends are provided. The joining protrusion 5 provided at the rear end of the front restraint girder blocks 1E to 1H is
Two pin holes 8 are formed on the upper surface. Refrain digit block 1A~1D of the rear stage <br/> is, two pin holes 9, 9 are formed on the upper surface of the joining projection 6 of the front end, joining the rear end projection 7
4 pin holes 10 are formed on the upper surface. These pin holes 8 to 10 are formed so as to be joined to the cross girder blocks 2A to 2F by using a pin joint 12 as shown in FIG. And, the front digit block 1E to 1H
The joining protrusion 5 and the joining protrusion 6 at the front ends of the blocks 1A to 1D in the subsequent stage are arranged to face each other at the rear end.

As shown in FIG. 8, the pin joint 12 is formed as tapered tapers 12A and 12b on both sides of the whole. When the pin joint 12 having such a structure is used, it is possible to perform centering and connection by simply inserting the pin joints 12 into the pin holes of both blocks and bringing the blocks close to each other, so that workability is improved. Further, on the upper surface of the lower restraint girder blocks 1A to 1H arranged horizontally, the upper restraint girder blocks are placed close to the sloped surface 31 side and shifted in parallel, and the blocks are sequentially stacked and constructed. It will be done.

Further, the restraint girder blocks 1A to 1H are provided with a lower fitting portion 13 on the lower surface of the block, and the upper fitting portion 14 is provided on the upper surface of the block so that the lower fitting portion 13 is closer to the sloped surface 31 than the lower fitting portion 13. Is provided. This upper fitting part 1
4 is formed in a shape that can be fitted to the lower fitting portion 13 of the restraint girder blocks 1A to 1H placed on the upper portion. Thereby, when stacking the restraint girder blocks 1A to 1H, the lower fitting portions 13 of the upper restraint girder blocks 1A to 1H are fitted to the upper fitting portions 14 of the lower restraint girder blocks 1A to 1H and positioned. When stacked, a retaining wall inclined at a predetermined angle can be constructed (see Fig. 1). In addition, the horizontal girder blocks 2A to 2F are of only one type shown in FIG. 6, and the joint ends 15 and 15 are formed at both ends thereof.
Two pin holes 16 and 16 are vertically formed on the lower surfaces of the cables 5 and 15, and the joint end portion 15 is overlapped on the joint protrusion portions 5 to 7 of the restraint girder blocks 1A to 1H, and the pin joint 12 is used for the joint. It is configured to be joined to the girder blocks 1A to 1H (see FIG. 1).

By the way, as shown in FIGS. 1, 4, and 5, the restraint girder blocks 1A to 1H have their joint projections 5 to 7 formed.
Is formed to be lower than the height 30 of the block body.

Further, the transverse girder blocks 2A to 2F have their joint ends 15 joined to the restraining girder blocks 1A to 1H.
7 and the thickness thereof is formed to be 30 or less in height of the block main bodies of the restraint girder blocks 1A to 1H. Therefore, even if the joint ends 15 of the transverse girder blocks 2A to 2F are placed and connected on the joined joint protrusions 5 to 6 of the front and rear restraint girder blocks 1A to 1D, 1E to 1H, the joint ends are not connected. 15 does not project above the upper surfaces of the restraint girder blocks 1A to 1H. Therefore, the horizontal girder blocks 2A to 2F do not become an obstacle due to the stacking of the restraint girder blocks 1A to 1H.

As shown in FIG. 7, the front blocks 3A to 3C are T-shaped portions each having a horizontally long plate surface portion 17 and upper and lower fitting grooves 18 and 19 provided on the left and right sides of the plate surface portion 17, respectively. Is formed. Upper and lower restraining girder blocks 1A to 1H are fitted and fixed to the fitting portions 18 and 19. The plate surface portion of the present embodiment has a decorative pattern portion 20 formed on the front surface thereof.

The retaining wall block constructed as described above is
It is used for retaining wall construction as follows.

As described below, blocks are assembled vertically and horizontally by the moderator girder blocks 1A to 1H, the lateral girder blocks 2A to 2F, and the front blocks 3A to 3C. Rest digit block 1A
~1H is installed in a plurality of parallel base and on the ground so as to face the block extending direction inclined slopes 31. In this embodiment, four front restraint girder blocks 1E to 1H are installed, and four rear restraint girder blocks 1A to 1H are installed in abutment with the front restraint girder blocks 1E to 1H. A total of six horizontal girder blocks 2A to 2F are fixed on the slope side of the row of the girder blocks 1A to 1D, 1E to 1H and the abutting part in the middle in a direction orthogonal to the girder blocks 1A to 1H. Will be placed. Preliminary restraint girder block 1E-1H
The front blocks 3A to 3C are fixedly arranged between them.

[0025] the vertical two pin holes 10, 10 of the upper surface of the succeeding note digits block 1A~1D rear end joint butt portion 7 pin holes 10 4 formed on the upper surface of the, crossbeam block 2A
The pin joint 12 is fitted between the two pin holes 16 on the lower surface of the joining end portion 15 of 2C to
Fix the slope side of the ~ 1D row.

Blocks 1A to 1D and 1E in the front and rear columns
1H to 1H are installed with the respective joint projections 5 and 6 butted against each other. Since the joint protrusions 5 and 6 have two pin holes 8 and 9, respectively, the four pin holes 8, 8, 9 and 9 are arranged on the four corners of the square on the upper surface of the joint portion. It will be. These reserved digit blocks 1A-1D, 1E-1
The joint end portion 15 of the horizontal girder blocks 2D to 2F is placed on the upper surface of the joint portion of H, and the pin holes 16 on the lower surface of the joint end portion 15 of the horizontal girder blocks 2D to 2F and the joint protrusions of the retaining girder blocks 1A to 1H. A pin joint 12 is fitted between the pin holes 8 and 9 on the upper surface of the parts 5 and 6 to fix the intermediate joint part of the rows of the restrainer blocks 1A to 1H.

The right and left fitting portions of the preceding ahead digit block 1 E 1H forward portion of the fitting groove 4 in the front block 3A-3C 1
9 and 19 are fitted and the front part of the row of the restraint girder blocks 1A to 1H is fixed. Two front blocks 3A, 3B or 3B, 3C are fitted and fixed to the fitting portions 4, 4 of the retaining girder blocks 1F, 1G in the middle of the retaining wall in the width direction. On the other hand, the restraint girder blocks 1E on both the left and right sides of the retaining wall,
Since 1H is its fitting portion 4 and 4 only one of the front block 3A or 3C is fitted, fixed block 21, 21
To fix it.

Blocks of similar construction are stacked on the blocks laterally assembled on the ground in this manner. At this time, the lower fittings 13 of the upper restraint girder blocks 1A to 1H are fitted to the upper fitting portions 14 of the lower restraint girder blocks 1A to 1H for positioning. Rest digit block 1A-1
Since the upper fitting portion 14 is located closer to the slope side than the lower fitting portion 13 of H, the restraint girder block 1A
.About.1H are stacked with a step-like inclination. That is, when the restraining girder blocks 1A to 1H are stacked horizontally, the entire retaining wall inclines at a predetermined angle.

Joining projections 5 of the restraint girder blocks 1A to 1H,
6 and 7 and the joint ends 15 of the transverse girder blocks 2A to 2F overlap each other, and the height of the block body of the restraint girder blocks 1A to 1H is 30 or less, so that the transverse girder blocks are stacked when the restraint girder blocks 1A to 1H are stacked. 2A to 2F do not become an obstacle.

Soil is accommodated in the space in the block constructed in this way to provide strength as a retaining wall.

The present invention is not limited to the above-described embodiments, but various modifications can be implemented.

For example, in the above-mentioned embodiment, the two-stage double-column type restraint girder block is installed, but the restraint girder block 1J shown in FIG. It may be a continuous type or more.

Further, as shown in FIG. 10, the plants 33 may be planted in a stepped portion formed in the front part when the upper and lower blocks 1 are horizontally shifted and stacked to be naturally adapted.

[0034]

As described above, in the retaining wall of the present invention, the upper retaining girder block is mounted on the upper surface of the lower retaining girder block which is horizontally arranged by moving the position closer to the slope side and shifting in the horizontal direction. By placing them and stacking them one after another, the whole retaining wall is constructed so as to have an inclined shape, so that an inclined foundation by concrete is unnecessary. Therefore, it is not necessary to form a foundation with a triangular cross section on the site in order to incline the retaining wall, and the labor for construction can be reduced and the construction cost can be reduced .

Further, a lower fitting portion is provided on the lower surface of the block, an upper fitting portion is provided on the upper surface of the block with a position displaced from the lower fitting portion on the inclined slope side, and an upper fitting portion is on the upper side. If it is formed so that it can be fitted to the lower fitting part of another restraint girder block to be placed, the lower fitting part of the upper restraint girder block can be fitted to the upper fitting part of the lower restraint girder block. A retaining wall inclined at a predetermined angle can be easily constructed simply by fitting, positioning and stacking.

When the height of the joint girder end of the transverse girder block placed on the fitting protrusion of the restraint girder block is set to be equal to or less than the height of the restraint girder block, when the restraint girder blocks are stacked, The horizontal girder block that fixes the restraint girder blocks does not become an obstacle.

Further, a plurality of retaining girder blocks are arranged with their jointing projections abutting each other in the block extension direction, and the retaining girder blocks are laterally arranged on the jointing protrusions on the sloped side of the restraint girder block arranged on the sloped side. digit blocks are placed are butted two, also refrain digit block and copy of the decanted side across on the two joint projections which are butted between the digit block crossbeam block the same crossbeam If the block is placed two thereof and joined ends abut one another, refrain digit block each other, since the crossbeam block each other are joined in a straight line respectively, adjacent ahead digit block each other, adjacent horizontal
Workability at the time of construction can be improved as compared with the case where the girder blocks are provided separately. Also, the cross beams blocks joining the ends of the inclined slopes side ahead digit blocks, since the cross beams block joining the butt portion of the refrain digit block each other can be the same members, and to facilitate construction The manufacturing cost of the block can be reduced.

[Brief description of drawings]

1 is a vertical cross-sectional view of an embodiment of a retaining wall of the present invention, which is a cross-sectional view showing a direction indicated by arrows UU in FIG.

FIG. 2 is a front view of the retaining wall of FIG.

FIG. 3 is a plan view showing one layer of the retaining wall in FIG.

4A and 4B are diagrams showing a front restraint girder block in the retaining wall of FIG. 1, in which FIG. 4A is a side view and FIG. 4B is a plan view of FIG.
(C) is a sectional view taken along line XX in FIG.

5A and 5B are diagrams showing a rear girder block in the retaining wall of FIG. 1, in which FIG. 5A is a side view, FIG. 5B is a plan view of FIG. A, and FIG.
FIG. 3 is a sectional view taken along line YY of FIG.

6 is a diagram showing a cross girder block in the retaining wall of FIG. 1,
(A) is a side view, (B) is a plan view of A view, (C) is a bottom view of A view, and (D) is a cross-sectional view taken along arrow ZZ of A view.

7 is a diagram showing a front block of the retaining wall of FIG. 1, (A)
Is a front view and (B) is a plan view of FIG.

FIG. 8 is a front view of a pi joint used for joining blocks.

FIG. 9 is a vertical cross-sectional view showing an I-phase type retaining wall showing another embodiment of the present invention.

FIG. 10 is a partially cutaway view showing a planting type retaining wall showing another embodiment of the present invention.

FIG. 11 is a front view showing a conventional retaining wall.

[Explanation of symbols]

1A to 1H reserved digit block 2A-2F horizontal girder block 3A-3C front block 13 Lower fitting part 14 Upper fitting part Joining protrusions of 5, 6, and 7 girder blocks 15 girder block joint end The height of the block body of the 30 restraint girder block 31 slope

Claims (3)

(57) [Claims] 1. A plurality of restraint girder blocks are arranged with their extension directions facing the slope, and transverse girder blocks are arranged between the restraint girder blocks in the lateral direction orthogonal to the restraint girder blocks. comprising, in the ahead digit block and the cross beams and a block along the inclined slopes are stacked together the Crossed vertically and horizontally to build a retaining wall provided on the inclined retaining wall blocks, the refrain digit blocks, end joining protrusion of lower than the height of the block body heights are provided to protrude, it said crossbeam block is disposed across the top of the joining projection of the refrain digit block is placed on the joining protrusion characterized in that the height overlapping the junction protrusion of the refrain digit blocks and joining end portions provided at both ends of the block is formed below the height of the block body of the refrain digit blocks to be Retaining wall block Click. Wherein said ahead digit block is arranged is I if butted joining projection of the plurality of one another to block the extension direction, joining the inclined slopes side of the refrain digit blocks arranged on the inclined slopes side butt section and the cross beams block mounted to abut two joining ends over and butted fit has been two junction between said ahead digit block and the copy <br/> e digit block retaining wall block of claim 1, wherein the same crossbeam block is placed is abutted to the joint ends together two and crossbeam block of the inclined slopes side across over the protrusion. 3. The restraint girder block is placed on the bottom surface of the block.
Part fitting part is provided, and the slope side is inclined as compared with the lower fitting part
The upper fitting part on the upper surface of the block.
Another restraint girder block is provided on which the upper mating part is placed.
Formed in a shape that can be fitted to the lower fitting part of the lock
The retaining wall block according to claim 1 or 2, characterized in that: