JPH07180167A - Retaining wall and block for retaining wall - Google Patents

Abstract

PURPOSE:To facilitate a diagonal construction of a retaining wall, by stacking upper stay beam blocks at the horizontally shifted position, close to the upper face of the lower stay beam blocks horizontally arranged and the slope side. CONSTITUTION:Blocks are classified to stay beam blocks 1A-1H disposed opposite to a slope 31, lateral girder blocks 2A-2F disposed crossing the above blocks at right angles, and frontal blocks 3A-3C and stacked lengthwise and crosswise to form a retaining wall. The stay beam blocks are classified to two kinds of the front side blocks 1E-1H and the rear side blocks 1A-1D. Fitting grooves 4 and fitting protrusions 5 fitted to the frontal blocks 3A-3C are formed at the front side blocks and also fitting protrusions 6, 7 are formed at the rear side blocks. Next, the rear side stay beam blocks 1A-1D are connected by butt- joint with the front side stay beam blocks 1E-1H opposite to the slope 31. In this way, these blocks are stacked in turn to construct a retaining wall having a specified angle through these fitting grooves 4, the upper and lower fitting parts 13, 14 and the fitting protrusions 5, 6, 7.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall which is constructed by stacking a large number of blocks and is provided in an inclined shape along an inclined slope, and a retaining wall block used for 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.

An object of the present invention is to provide a retaining wall and a retaining wall block in which it is not necessary to form a foundation having a triangular section in the field, the labor for construction is reduced, and the construction cost is reduced.

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-mentioned object, the present invention has a structure in which a plurality of restraint girder blocks arranged in parallel with the block extension direction facing the inclined slope and a restraint girder block between them. A girder block and a transverse girder block arranged in a horizontal direction orthogonal to each other are provided, and a retaining girder block and a transverse girder block are assembled vertically and horizontally and are stacked horizontally in a retaining wall provided in an inclined shape along an inclined slope. It is constructed by stacking by placing the upper restraint girder block on the upper surface of the lower restraint girder block placed on the upper side of the lower restraint girder block, shifting the position in the horizontal direction close to the slope side.

Further, according to the present invention, a plurality of restraint girder blocks are arranged in parallel so that the block extending direction faces the inclined slope surface, and a transverse direction orthogonal to the restraint girder blocks is arranged between the restraint girder blocks. In a retaining wall block including a transverse girder block, which is constructed by vertically and horizontally assembling a retaining girder block and a transverse girder block, and constructing a retaining wall provided in an inclined shape along an inclined slope, the retaining girder block is The lower fitting part is provided on the lower surface of the block, and the upper fitting part is provided on the upper surface of the block by shifting the position closer to the slope side than the lower fitting part, and the upper fitting part is placed on top. It is formed into a shape that can be fitted to the lower fitting portion of another restraining girder block.

Further, in the retaining wall block of the present invention, the restraint girder block is provided with protruding joint projections having a height lower than the height of the block main body at the ends, and the transverse girder block is joined to the restraint girder block. The height of the block main body of the retaining girder block is the height of the joint ends provided on both ends of the block and the joint protrusions of the retaining girder block that are placed over the protrusions and placed on the joining protrusions. It is formed below.

Further, a plurality of retaining girder blocks are arranged in the block extending direction so that their joint projections are abutted against each other, and are arranged on the sloped slope side joint end of the restrained girder block arranged on the sloped side. The cross girder block is placed with its two joining ends butted together, and the cross girder on the slope side extends over the two butted joining projections between the restraining girder block and the restraining girder block. Two transverse girder blocks that are the same as the blocks are placed with their joints butted against each other.

[0011]

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 upper and lower fitting portions 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, a plurality of retaining girder blocks are arranged in the block extending direction so that their joint projections are butted against each other, and are arranged on the sloped slope side joint ends of the restrained girder blocks arranged on the sloped slope side. 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.

[0015]

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 a slope slope) and a block 1A to 1D at a rear stage (a slope 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. As shown in FIGS. 1 and 5, the rear restraint girder blocks 1A to 1D are provided with joint protrusions 6 and 7 at the front and rear ends, respectively. 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. The rear girder blocks 1A to 1D have two pin holes 9 and 9 formed on the upper surface of the joining projection 6 at the front end, and the joining projection 7 at the rear end.
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 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 as to be closer to the slope 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.

In 2A to 2F, the joint end portion 15 thereof is overlapped with the joint projections 5 to 7 of the restraint girder blocks 1A to 1H so that the thickness is 3 of the block body of the restraint girder blocks 1A to 1H.
It is formed to be 0 or less. Therefore, the joining end portions 15 of the transverse girder blocks 2A to 2F are provided on the joined joining projections 5 to 6 of the front and rear restraint girder blocks 1A to 1D, 1E to 1H.
Even if you put and connect, the joint end part 15 is the restraint girder block 1
It does not project above the upper surface of A 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 are installed on the ground such that a plurality of them are equidistantly arranged so that the block extension direction faces the sloped surface 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. The restraint girder blocks 1A to 1H are provided on the inclined slope side of the row of the restraint girder blocks 1A to 1D, 1E to 1H and the abutting portion in the middle.
Six horizontal girder blocks 2A to 2F are fixedly arranged in a direction orthogonal to and. Preliminary restraint girder block 1E-1
Between H, front blocks 3A to 3C are fixedly arranged.

Of the upper surfaces of the four pin holes 10 formed on the upper surface of the joining end portion 7 at the rear end of the rear restraint girder blocks 1A to 1D, two vertical pin holes 10 and 10 and a lateral girder 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 projections 5 and 6 have the pin holes 8 and 9, respectively, the four pin holes 8, 8, 9 and 9 should be arranged on the four corners of the square on the upper surface of the joint portion. become. These reserved digit blocks 1A-1D, 1E-1H
The joint ends 15 of the cross girder blocks 2D to 2F are placed on the upper surfaces of the joint portions of the above, and the joint ends 1 of the girder blocks 2D to 2F are placed.
The pin joints 12 are fitted between the pin holes 16 on the lower surface of 5 and the pin holes 8 and 9 on the upper surfaces of the joint girders 5 and 6 of the restraint blocks 1A to 1H to form rows of the restraint blocks 1A to 1H. Fix the middle joint part of.

The right and left fitting parts 1 of the front blocks 3A to 3C are fitted in the fitting grooves 4 in the front part of the front restraint girder blocks 1A to 1H.
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,
In 1H, since only one front block 3A or 3C is fitted to the fitting portions 4 and 4, the fixing blocks 21 and 21 are interposed and fixed.

Blocks of the same 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 protrusions 5 of the restraint girder blocks 1A to 1H,
6 or the joining projection 7 and the joining end portion 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 restraint girder block 1A to
The horizontal girder blocks 2A to 2F do not become an obstacle when stacking 1H.

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-mentioned embodiments, but various modifications can be implemented.

For example, in the above-mentioned embodiment, the two-stage front and rear dual-type restraint girder block is shown, but it may be a single stage like 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 portion when the upper and lower blocks 1 are horizontally shifted and stacked to be naturally adapted.

[0035]

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. In addition, a lower fitting part is provided on the lower surface of the block, and the upper fitting part is placed on the upper surface of the block by shifting the position on the slope surface side compared to the lower fitting part. If it is formed into a shape that can be fitted to the lower fitting part of another restraint girder block, fit the lower fitting part of the upper restraint girder block to the upper fitting part of the lower restraint girder block. A retaining wall that is inclined at a predetermined angle can be easily constructed by simply combining and positioning and stacking.

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 toward the slope side as compared with the lower fitting portion, and the 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.

Further, when the height of the joint girder portion of the transverse girder block placed on the fitting protrusion of the retaining girder block is set to be equal to or lower than the height of the retaining girder block, when the retaining 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 in the block extending direction so that their joint projections are butted against each other, and the retaining girder blocks are arranged on the inclined slope side, and are laterally above the joint end on the inclined slope side. Two girder blocks are placed in abutment with each other, and the same girder block is the same as the girder block on the slope side, straddling over the two butted joint projections between the girder girder blocks and the girder girder blocks. When the same girder blocks are placed with their joint ends butted against each other, the restraint girder blocks and the girder blocks are joined in a straight line. Workability at the time of construction can be improved as compared with the case where staggered girder blocks that fit together are staggered. In addition, since the cross girder block that joins the end portion of the slope girder surface side of the stay girder block and the cross girder block that joins the abutting portions of the stay girder blocks can be the same member, the construction is easy and 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.

12 is a plan view showing a block of one layer of the retaining wall of FIG. 11. FIG.

[Explanation of symbols]

 1A to 1H Resting girder block 2A to 2F Horizontal girder block 3A to 3C Front block 13 Lower fitting part 14 Upper fitting part 5, 6, 7 Joining protrusion of staying girder block 15 Joining end of girder block 30 Resting girder Height of block body of block 31 Slope

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[Procedure amendment]

[Submission date] June 17, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 11

[Correction method] Change

[Correction content]

FIG. 11 is a view showing a conventional retaining wall, (A) is a front view thereof, and (B) is a plan view showing a block of one layer.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 12

[Correction method] Delete

Claims (4)

[Claims] 1. A restraint girder block having a plurality of blocks arranged parallel to each other with a block extension direction facing an inclined slope, and a transverse girder block arranged between the restraint girder blocks in a lateral direction orthogonal to the restraint girder block. In the retaining wall that is provided with the retaining girder blocks and the transverse girder blocks assembled vertically and horizontally and is stacked in an inclined shape along the inclined slope, an inclination is formed on the upper surface of the lower retaining girder block arranged horizontally. A retaining wall characterized by being constructed by stacking by placing the upper girder block on top of the slope side and shifting the position in the horizontal direction. 2. A plurality of restraint girder blocks arranged parallel to each other with the block extension direction facing the inclined slope, and a transverse girder block arranged laterally between the restraint girder blocks and orthogonal to the restraint girder block. In the retaining wall block, wherein the retaining girder block and the transverse girder block are vertically and horizontally assembled and stacked to construct a retaining wall provided in an inclined shape along an inclined slope, the retaining girder block is a block. A lower fitting portion is provided on the lower surface, and an upper fitting portion is provided on the upper surface of the block by shifting the position closer to the slope side than the lower fitting portion, and the upper fitting portion is placed on top. A retaining wall block, which is formed into a shape that can be fitted to the lower fitting portion of another restraining girder block. 3. A restraint girder block having a plurality of block extension directions facing the inclined slope and a transverse girder block arranged in a transverse direction orthogonal to the restraint girder block between the restraint girder blocks. In the retaining wall block, wherein the retaining girder block and the transverse girder block are assembled vertically and horizontally, the retaining girder blocks are stacked on each other to construct a retaining wall provided in an inclined shape along a sloped slope. In the portion, a joint protrusion having a height lower than the height of the block body is provided so as to project, and the cross girder block is arranged over the joint protrusion of the restraining girder block and is placed on the joint protrusion. A retaining wall block characterized in that the height of the joint ends provided at both ends of the block and the joint protrusions of the retaining girder block is formed to be less than the height of the block body of the retaining girder block. 4. A plurality of the restraining girder blocks are arranged in the block extension direction such that their joint projections are butted against each other.
The transverse girder block is placed with the two joining ends abutted on the joining end portion on the inclined slope side of the restraining girder block disposed on the slope side, and the restraining girder block and the restraining girder block are placed. It is characterized in that two transverse girder blocks, which are the same as the transverse girder blocks on the inclined slope side, are placed on the two abutting joints abutting each other with their joint ends abutting each other. The retaining wall block according to claim 3. [0001]