JPH0726572A - Retaining wall structure - Google Patents

Abstract

PURPOSE:To increase strength and realize interesting design while saving an application material as much as possible. CONSTITUTION:Retarding a retaining wall structure having concrete blocks 3 stacked in a vertical direction between a plurality of supports 2 and both ends 4 of each block 3 held on the supports 2, the concrete blocks 3 are arranged so as to be convex toward the reverse side of a retaining wall. In addition, the blocks 3 are held on the supports 2 via engagement sections 5 formed at both ends, thereby providing an arch shaped structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall structure, and in particular, concrete blocks are vertically stacked between a plurality of pillars erected on the ground, and both ends of the concrete block are formed by the pillars. Supporting retaining wall structure.

[0002]

2. Description of the Related Art There is the following retaining wall structure as described above (see Japanese Patent Application Laid-Open No. 53-35204).

As shown in FIG. 8, a pillar 14 is erected on the ground 15, and a side plate 17 is placed between the pillars 14, thereby stopping the earth and sand 18. Here, the support 14 is a retaining wall 11 that is a right-angled triangular plate, and the retaining wall 1 is provided on the front and bottom surfaces of the retaining wall 11.
1 is a reinforced concrete member which is formed in a substantially T-shape with 1 and in which a front support plate 12 and a bottom support plate 13 projecting support portions on both sides are integrally formed in advance.

Then, the two upright columns 14, 14
A plate-shaped bottom plate 16 is placed between the bottom support plates 13 to fix both ends, and the side plate 1 is provided between the two columns 14.
7, the both ends of which are fixed to the front support plate 12.

Here, the bottom plate 16 and the side plate 17 are plate-like blocks made of reinforced concrete, and are manufactured in advance as having a length adapted to the arrangement interval of the columns 14.
The bottom plates 16 are arranged horizontally in the space between the bottom support plates 13 of the columns 14, and the side plates 17 are arranged between the front support plates 12 in the horizontal direction according to the required width dimension. It is arranged so as to be stacked vertically according to the height.

In the retaining wall structure, the earth pressure component force, which is a horizontal load, is directly received by the side plates 17 and transmitted to the columns 14 located on both sides of the side plates 17 through the front support plates 12. In addition, the earth pressure distribution, which is a vertical load, is similar to the bottom plate 16
Prop 1 that is directly received by and is located on both sides
4 via the bottom support plate 13. Then, the horizontal load and the vertical load are transmitted to the supporting column 14 as a resultant force, and the supporting column 14 receives these two forces and can support the earth pressure in a stable state.

[0007]

However, as the retaining wall structure, it is demanded that the retaining wall structure be as much as possible while saving the material to be used, and also various in design. Therefore, an object of the present invention is to provide a retaining wall structure having higher strength and having an interesting design.

[0008]

In the present invention, the first means for solving the above-mentioned problems is to stack concrete blocks in the vertical direction between a plurality of pillars erected on the ground, In a retaining wall structure configured by supporting the ends on both sides of the concrete column, the concrete block is a convex toward the back side of the retaining wall, with the engaging portion formed on the ends on both sides of this concrete block. It is configured as an arch shape supported by the pillar.

In the present invention, the second means is the construction of the first means, wherein the engaging portion of the concrete block is an engaging groove provided on the outer surface of the end portion of the concrete block, and the concrete block is In this engagement groove, the ends of adjacent concrete blocks are provided close to each other with the concrete blocks being stacked between the columns supported by the columns.

[0010]

According to the first means of the present invention, the concrete block is convex toward the rear surface side of the retaining wall, and is supported by the pillar by the engaging portions formed at both ends of the concrete block. Since it has an arched shape, when horizontal earth pressure is applied to the concrete block, it is suppressed that stress in the bending direction is applied to the concrete block, and it is retained as the stress in the compressive direction in which concrete originally has strength. Therefore, the soil strength can be increased. At this time, since the stress is efficiently received with respect to the same strength, the required material is the minimum, and it is economical without using a waste material.

According to this means, the retaining wall structure that appears to the outside is such that the arched walls are continuously repeated, which makes it interesting in terms of design.

According to the second means of the present invention, the engaging portion is an engaging groove provided on the outer surface of the end portion of the concrete block, and the concrete block is supported by the column in the engaging groove. In the state where the concrete blocks are stacked between the columns, the ends of the concrete blocks adjacent to each other with the columns between them become close to each other. Therefore, in addition to the function of the first means, Since it is hidden by the part and is not exposed to the outside, even if the pillar is made of a material or appearance different from that of the concrete block such as steel, only the concrete block made of the same material is used on the surface of the retaining wall structure. Because it will appear
The retaining wall structure can be neatly designed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A retaining wall structure according to an embodiment of the present invention will be described below with reference to the drawings. 1 to 6 show an embodiment of a retaining wall structure according to the present invention.

In this embodiment, as shown in FIGS. 1 to 5, in the retaining wall structure, a base 20 made of reinforced concrete is placed on the ground 1, and a pillar 2 is mounted on the placed base 20. A plurality of H-shaped steel materials 21 having a predetermined length are set upright. Here, as shown in FIG. 4, the base 20 has a block shape, and in this embodiment, one base is used for one H-shaped steel material 21. A plate material 22 is welded and fixed to the lower end portion of the H-shaped steel material 21, and is fixed by an implantation bolt 23 of the base 21. As shown in FIGS. 1 and 2, the pillar 2 is made of concrete, which will be described later, assuming that one flange portion 25 of the two pairs of overhanging flange portions 24, 25 of the H-shaped steel material 20 is engaged with the concrete block 3. Block 3
Are arranged vertically in the continuous direction of the retaining wall structure at an arrangement interval corresponding to the dimension.

Further, in the present embodiment, as shown in FIGS. 1 and 5, a fall prevention member 26 also made of steel is attached between the H-shaped steels 21 and the base 20 in a bracing manner. I am supposed to. This fall prevention member 26
Has its upper end fixed by a bolt nut to a plate member 27 whose upper end is welded to the flange 24 of the H-shaped steel member 21,
The lower end of the H-shaped steel material 21 is fixed to the studs 29 of the base plate 20 through the mounting plate 28.
It is supposed to be fixed at an angle of 5 °.

Further, in the retaining wall structure according to this embodiment, the concrete blocks 3 formed of reinforced concrete are stacked from above between the H-shaped steel materials 21 which are erected.

This concrete block 3 is shown in FIG.
As shown in (1) and (2), it has an arched shape having a substantially semicircular cross-sectional shape, and its thickness is as shown in FIG.
As shown in, the apex of the arch is formed to be slightly thin and thick toward the end portions 4 on both sides, and is manufactured to have a predetermined strength against earth pressure from the direction of the apex. ing.

Further, in this embodiment, engaging grooves 6 are formed on the outside of the end portions 4 on both sides of the concrete block 3 as engaging portions for engaging with the flange portion 25 of the H-shaped steel material. . The depth dimension d of the engagement groove 6 is larger than the protrusion width dimension D (shown in FIG. 2) of the flange portion of the H-shaped steel material, and as shown in FIGS. When the flange portion 25 of the H-shaped steel material 21 is engaged with the engaging groove 6 of, the end portions 4 of the concrete block 3 inserted from both sides come close to or contact with each other,
The H-shaped steel material 21 can be covered from the outside.

In this embodiment, when this concrete block is mounted between the above-mentioned standing H-shaped steel materials 21, the apex side is assembled as the inner side (mountain side), and the outer side (exposed side) of the retaining wall structure. The concave surface 30 of the concrete block 3 appears, and the H-shaped steel material 21 is covered up.

Therefore, according to the present embodiment, the support column 2 is the H-shaped steel material 21, and the base 2 together with the fall prevention member 26 are provided.
Since the retaining wall can be constructed by assembling the concrete block 3 between the standing H-shaped steel materials 21 by bolting to 0, all the members can be prepared in advance and these can be prepared at the construction site. Construction can be performed by bringing in the materials and assembling them. That is, in the present embodiment, after the foundation civil engineering work is completed, the foundation 20 is placed on the ground 1, the H-shaped steel material 21 and the fall prevention member 26 are bolted, and the concrete block 3 is fixed to the H-shaped steel material 21.
The work is completed by simply stacking and arranging the flange portion 25 of the H-shaped steel material 21 so that the flange portion 25 of the H-shaped steel material 21 fits in the engagement groove 6 of the concrete block 3 during the period. Therefore, the construction can be performed easily and quickly.

Further, according to this embodiment, when the earth pressure in the horizontal direction is applied to the concrete block 3, since the concrete block 3 has an arched shape, stress in the bending direction may be applied to the concrete block 3. Since it is suppressed and can be retained as a stress in the compressing direction which originally has a high strength, the soil strength can be increased. At this time, since the stress is efficiently received with respect to the same strength, the required material such as concrete is minimized, and it is economical without using useless material.

Further, according to the present embodiment, the retaining wall structure that appears outside is such that the arched walls are continuously repeated, so that it is sophisticated in terms of design, and the concrete block 3 is H Since the H-shaped steel material 21 is hidden by the end of the concrete block and is not exposed to the outside while being stacked between the shaped steel materials 21, only the concrete block 3 appears on the surface of the retaining wall structure. Can be neatly designed.

Incidentally, in the above embodiment, the H is used as the support.
Although the shaped steel material is used, the pillar is not limited to this, and as shown in FIGS. 7 (a), (b), and (c),
As the cross-sectional shape of the support column 2, an appropriate cross-sectional shape such as a circle, a rectangle, or a rhombus can be used. At this time, the engagement groove 6 of the concrete block 3 may be formed to have a shape that matches the shape of the pillar 2.

Further, in the above-mentioned embodiment, the support pillar is bolted to the base together with the fall-preventing member, but the method of standing the support pillar is not limited to this, and the support pillar is driven into the ground or
It can be installed by other methods. Further, in the above-mentioned embodiment, the pillars have been described as an example not appearing on the surface of the retaining wall, but even if the pillars appear on the surface of the earth retaining wall, there is no practical problem.

[0025]

As described above, according to the first means of the present invention, the concrete block having the retaining wall structure is convex toward the rear surface side of the retaining wall, and the concrete blocks are provided at both ends of the concrete block. Since it has an arched shape that is supported by the pillars at the formed engagement part, when horizontal earth pressure is applied to the concrete block, it is suppressed that bending direction stress is applied to the concrete block. Since concrete can be retained as a stress in the compression direction having a large strength, the soil retaining strength can be increased. Also, since the stress is efficiently received for the same strength, the required material is the minimum, it is economical without using waste material, and the retaining wall structure that appears outside is arched. The shape of the wall will be repeated in succession, so it has the effect of being sophisticated in terms of design.

Further, according to the second means of the present invention, the engaging portion of the concrete block is an engaging groove provided on the outer surface of the end of the concrete block, and the concrete block forms a pillar in the engaging groove. In the state where the concrete blocks are supported and stacked between the columns, the ends of the concrete blocks adjacent to each other with the columns sandwiched are close to each other, so in addition to the effect of the first means,
Since the pillar is hidden by the end of the concrete block and is not exposed to the outside, even when the pillar is made of a material or appearance different from that of the concrete block such as steel,
Only the concrete blocks made of the same material appear on the surface of the retaining wall structure, which has the effect of making the retaining wall structure neat in design.

[Brief description of drawings]

FIG. 1 is a perspective view showing a retaining wall structure according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a main part of a retaining wall structure according to an embodiment of the present invention.

FIG. 3 is a plan view showing a retaining wall structure according to an example of the present invention.

FIG. 4 is a front view showing a retaining wall structure according to an embodiment of the present invention.

FIG. 5 is a side view showing an upright state of an H-shaped steel material having a retaining wall structure according to an example of the present invention.

FIG. 6 is a plan view (1) and a front view (2) of a concrete block used for a retaining wall structure according to an example of the present invention.

FIG. 7 is an enlarged plan view of an essential part showing another example of the concrete block and the pillar.

FIG. 8 is a perspective view showing a conventional retaining wall structure.

[Explanation of symbols]

 1 Ground 2 Support 3 Concrete block 4 End 5 Engagement 6 Engagement groove

Claims (2)

[Claims] 1. A retaining wall structure in which concrete blocks are vertically stacked between a plurality of pillars erected on the ground, and both ends of the concrete block are supported by the pillars. Is a convex shape toward the rear surface side of the retaining wall, and is configured as an arch shape that is supported by the pillars by engaging portions formed at both ends of this concrete block. 2. The engaging portion of the concrete block comprises:
Engagement grooves provided on the outer surface of the end of the concrete block, the concrete blocks being supported by the stanchions in the engagement grooves, and the concrete blocks being stacked between the stanchions, being adjacent to each other with the stanchions in between. The retaining wall structure according to claim 1, wherein the ends of the concrete blocks are provided close to each other.