JP2001059230A - Retaining wall structure for earth retaining - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a retaining wall structure for earth retaining in which cost required for transport is reduced by miniaturizing a unit member constituting a retaining wall while a natural landscape can be obtained by planting various saplings or the like to the constructed retaining wall. SOLUTION: Since unit wall materials 2 are held extending over both holding sections 3a, 3b of at least two unit supporting frames 3 arranged in the horizontal direction and a retaining wall 4 under the erected state is built, the retaining wall structure 1 in a desired region can be constructed easily. Since the retaining wall structure is constituted of the unit supporting frames 3 and wood 2 in fixed length and fixed thickness, transportation cost can be reduced because each supporting frame 3 and wood 2 is disassembled respectively in the case of transport and can be transported at every unit member. The retaining wall structure need not be ensured widely as the region of a stockyard for temporary holding on a facility field as conventional devices, and material management can be simplified.

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 for retaining a ground, which is constructed for embankment of a ground cut by revetment of a river or development of a residential land.

[0002]

2. Description of the Related Art Conventionally, a retaining wall structure has been known which is constructed for retaining a ground that has been cut by revetment of a river or development of a residential area.

[0003] As this type of retaining wall structure, for example, Japanese Patent Publication No. 2520821 is well known. The retaining wall blocks used in this retaining wall structure use large-sized building blocks, and large-sized building blocks having a substantially square front face are arranged horizontally adjacent to each other to construct a retaining wall. Are stacked at a predetermined gradient, and the upper and lower rows are horizontally offset from each other in adjacent positions to form a retaining wall.

[0004]

However, in such a conventional retaining wall structure, a large amount of materials such as large building blocks and cement are used. The transported and transported materials will be temporarily held in the material storage area.

[0005] Depending on the scale of the construction area at the site, a large amount of such materials will be charged. Particularly, a large-sized building block has a large volume and a large weight, so that the transportation cost is low. There is a problem that it is necessary to secure a space that is bulky and has a large area in the material storage area.

On the other hand, in the conventional retaining wall structure, since the blocks used are concrete building blocks having a flat square front surface, these are used for retaining walls constructed for revetment of rivers. When the mountain was constructed as a retaining wall in a cut section, a flat artificial retaining wall made of concrete was constructed, so that there was a problem that a natural scenery could not be obtained on the retaining wall.

[0007] The present invention has been made in view of such problems, and by reducing the size of the unit wall material for constructing the retaining wall, it is possible to reduce the cost of transportation,
An object of the present invention is to provide a retaining wall structure for retaining earth, which can obtain a natural landscape by vegetating various kinds of seedlings and the like on a constructed retaining wall.

[0008]

In order to achieve the above-mentioned object, a retaining wall structure for earth retaining according to the present invention is a unit in which vertically long holding portions which are open upward are separated from each other in front and rear, and are integrally arranged side by side. It is characterized by being constructed from a support frame and unit wall members sequentially inserted from an upper opening so as to straddle both holding portions of at least two unit support frames arranged in the left-right direction.
According to this feature, at least 2 arranged in the left-right direction
Since the unit wall material is held across the two holding portions of one unit support frame to form the standing retaining wall, the retaining wall structure in the desired area can be easily constructed. In addition, since the retaining wall structure is constituted by the unit support frame and the unit wall material, it can be disassembled and transported for each unit member at the time of transportation, so that the transportation cost can be reduced and the conventional method can be achieved. Since there is no large-sized material, there is no need to secure a wide area for material storage for temporary holding at the facility site, and material management can be simplified.

The retaining wall structure for retaining the earth according to the present invention is preferably configured so that the unit support frame is configured to be connectable in the left-right direction by engagement of a connecting member having a predetermined length. By doing so, the unit support frames are connected to each other in the left-right direction by the engagement of the connecting member of the predetermined length, so that the unit support frame becomes an integrally self-supporting frame of a predetermined shape, and can be stood without any special device. It can be kept in the installed state.

[0010] In the retaining wall structure for retaining earth of the present invention, it is preferable that the unit wall material is formed of a water-permeable porous concrete into a fixed panel shape having a predetermined thickness. By doing so, plants such as seedlings can be rooted and vegetated through the permeable porous concrete, and a natural landscape can be obtained on the panel-shaped wall surface.

The retaining wall structure for retaining the earth of the present invention is preferably such that the unit wall material is made of a combination of wood having a predetermined thickness and a predetermined length. By doing so, it is possible to easily construct the unit wall material simply by sequentially inserting wood having a predetermined thickness and a predetermined length into both holding portions of the unit support frame from above.

[0012] The retaining wall structure for earth retaining according to the present invention is characterized in that crushed stone is formed in a gap between the unit wall materials formed by inserting the unit wall materials into both holding portions juxtaposed before and after the unit support frame. Alternatively, it is preferable that the residual soil is filled and accommodated. By doing so, the crushed stone or the residual soil is filled and stored in the gap formed between the unit wall materials, so that even if play occurs in the unit wall materials fitted in the front and rear holding portions, the crushed stone or the remaining soil is filled. The unit wall material is pressed outward by the internal pressure of the crushed stone or the residual soil, and is firmly held.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. First, a first embodiment of a retaining wall structure for earth retaining according to the present invention will be described. FIG. 1 is an overall perspective view of a retaining wall structure for earth retaining as a first embodiment of the present invention, FIG. 2 is an explanatory view showing an assembling procedure of the retaining wall structure, and FIG. 3 is an assembled unit support. It is explanatory drawing which shows the procedure which assembles a unit wall material to a frame.

As shown in FIG. 1, reference numeral 1 denotes a retaining wall structure, and the retaining wall structure 1 is capable of inserting a plurality of pieces of wood 2 having a predetermined thickness and a predetermined length as a unit wall material from above. A unitary support frame 3 made of cast iron, in which a vertically long holding part 3a and a holding part 3b, which are open upward, are separated from each other in front and rear, and are integrally arranged side by side. The unit support frame 3 includes a plurality of wood pieces 2 as unit wall materials that are sequentially fitted from the upper opening so as to straddle both holding portions 3a and 3b.

The unit supporting frame 3 is connected in the left-right direction by engaging a connecting member 6 having a predetermined length shown in FIG. It is configured as an expression frame.

Next, a procedure for assembling the retaining wall structure will be described. As shown in FIGS. 1 and 2, when the unit support frames 3 made of cast iron are arranged in the left-right direction with a predetermined space therebetween, a connecting member 6 having a predetermined length is provided at the upper and lower portions of each unit support frame 3. Are respectively engaged and connected in the left-right direction, and are configured as an integral self-supporting frame having a predetermined shape. These frames are configured as unit wall materials in the lowermost row of the retaining wall structure 1,
It is fixed to the upper surface of a concrete foundation B formed on the ground.

As described above, when the unit supporting frames 3 are connected to the upper and lower portions by the connecting members 6 having a predetermined length, a unitary self-supporting frame having a predetermined shape is formed. It can be maintained in an upright state without providing any.

Next, as shown in FIG. 3, the two unit support frames 3 arranged in the left-right direction by the engagement of the connecting member 6 are configured as an integrally self-supporting frame body. Vertically long front holding portions 3a arranged before and after 3
When a plurality of pieces of wood 2 having a predetermined thickness and a predetermined thickness serving as a unit wall material are inserted into the rear holding portion 3b from the upper end opening and loaded, the retaining wall 4 is built upright. Then, a gap is formed between the retaining walls 4 constructed by stacking the plurality of pieces of wood 2 inserted into the two holding portions 3a and 3b arranged side by side.

In this way, the wood 2 having a predetermined thickness and a predetermined length can be transferred to both holding portions 3 before and after the unit support frame 3.
Since the retaining wall 4 is constructed simply by sequentially inserting the retaining wall 4a from above, the assembling work of the retaining wall can be simplified.

Next, the retaining wall structure 1 having a gap formed therein is formed by connecting and stacking the retaining wall 4 on the upper surface of the foundation B in a suitable number of units. Filling material S such as remaining soil generated by crushed stone or cut soil of a river or the like is filled and accommodated in the void, and the retaining wall structure 1 is completed.

As described above, since the crushed stone or the remaining soil is filled and stored in the space between the unit wall materials 2 formed by loading a plurality of pieces of wood, the unit walls fitted into the front and rear holding portions 3a, 3b. Even if play occurs between the holding members 3a and 3b, the material 2 can be firmly held by being pressed outward by the internal pressure of the filled crushed stone or remaining soil.

Further, since the retaining wall structure in the present embodiment is constituted by the unit support frame 3 and the plurality of woods 2, it can be disassembled and transported for each unit member at the time of transportation, so that transportation costs can be reduced. Because there is no large-scale material (stacking block) as in the past, there is no need to secure a large area for material storage for temporary holding at the facility site, and simplification of material management be able to.

Next, the second embodiment of the retaining wall structure for retaining earth of the present invention will be described.
An embodiment will be described. FIG. 4 is an overall perspective view of a retaining wall structure for earth retaining as a second embodiment of the present invention, FIG. 5 is an explanatory view showing an assembling procedure of the retaining wall structure, and FIG. It is explanatory drawing which shows the state in which seedlings are vegetated on the porous concrete retaining wall. Note that the same components as those of the above-described embodiment are denoted by the same reference numerals, and detailed description is omitted.

First, reference numeral 7 shown in FIG. 4 denotes a vertically long front panel having an opening through which a concrete panel 8 formed into a predetermined shape by water-permeable porous concrete as a unit wall material can be inserted from above. Holding part 3a and rear holding part 3
b are integrally formed with unit support frames 3 made of cast iron, which are arranged side by side at a distance from each other, and concrete panels 8 are erected on both holding parts 3a, 3b of at least two unit support frames 3 arranged side by side. Then, the concrete panel is directly configured as a unit wall material.

The retaining wall structure 7 constructed as described above is assembled by the same procedure as in the above-described embodiment, and is inserted into the front holding portion 3a and the rear holding portion 3b which are separated from each other in front and rear. When a unit wall material is constructed by the concrete panels 8 formed and a gap is formed between the concrete panels 8, crushed stones and remaining soil are filled and accommodated in the gap to complete a retaining wall structure.

The second construction of the retaining wall structure constructed as described above
In the embodiment, the same operation and effect as those of the first embodiment are described, and therefore, a duplicate description is omitted. However, in the present embodiment, since the concrete panel 8 is made of water-permeable porous concrete, Seedlings M and the like are vegetated in the formed minute space, and the roots are filled between the retaining walls 8 and extend to the remaining soil and are rooted, so that a natural scenery can be obtained on the wall surface of the concrete panel 8. .

Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration of the present invention is not limited to this. In the embodiment, the same unit wall material (wood, concrete panel) is inserted into the front and rear holding parts. However, different unit wall materials are inserted into the front and rear holding parts, and the front part is made of wood and the rear part is made of concrete panel. Good, with concrete panels on the front and wood on the back. As for the wood, the holding portion may be used by bundling a plurality of pieces having a smaller diameter than the width.

[0028]

The present invention has the following effects.

(A) According to the first aspect of the present invention, the unit wall material is held across both holding portions of at least two unit support frames arranged in the left-right direction, and the standing retaining wall is constructed. Therefore, a retaining wall structure in a desired area can be easily constructed. In addition, since the retaining wall structure is constituted by the unit support frame and the unit wall material, it can be disassembled and transported for each unit member at the time of transportation, so that the transportation cost can be reduced and the conventional method can be achieved. Since there is no large-scale material, there is no need to secure a wide area for material storage for temporary holding at the facility site, and material management can be simplified.

(B) According to the second aspect of the present invention, the unit support frames are connected in the left-right direction by the engagement of the connecting members having the predetermined length. It can be maintained in an upright state without providing a special device.

(C) According to the invention of claim 3, plants such as seedlings can be rooted and vegetated through the permeable porous concrete, and a natural landscape can be obtained on the panel-like wall surface.

(D) According to the invention of claim 4, it is possible to easily construct a unit wall material simply by sequentially inserting wood having a predetermined thickness and a predetermined length into both holding portions of the unit support frame from above. .

(E) According to the fifth aspect of the present invention, since crushed stone or residual soil is filled and accommodated in the gap formed between the unit wall materials, the unit wall material inserted in both the front and rear holding portions has a play. Is generated, it is strongly held because it is pressed outward by the internal pressure of the filled crushed stone or residual soil.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a retaining wall structure for earth retaining as a first embodiment of the present invention.

FIG. 2 is an explanatory view showing an assembling procedure of the retaining wall structure for use.

FIG. 3 is an explanatory view showing a procedure for assembling a unit wall material to an assembled unit support frame.

FIG. 4 is an overall perspective view of a retaining wall structure for earth retaining as a second embodiment of the present invention.

FIG. 5 is an explanatory view showing an assembling procedure of the retaining wall structure for use.

FIG. 6 is an explanatory view showing a state where seedlings are vegetated on the constructed water-permeable porous concrete retaining wall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Retaining wall structure 2 Wood (unit wall material) 3 Unit support frame 3a Front holding part 3b Rear holding part 4 Retaining wall 6 Connecting member 7 Retaining wall structure 8 Concrete panel (unit wall material) B Foundation M Sapling S Filling material (Crushed stone or surplus soil)

Claims (5)

[Claims] A vertically extending holding portion that opens upwardly spans both holding portions of a unit support frame that is spaced apart in the front-rear direction and that is integrally juxtaposed, and at least two unit support frames that are arranged in the left-right direction. A retaining wall structure for a retaining wall, comprising: a unit wall material that is sequentially fitted from an upper opening. 2. The retaining wall structure for earth retaining according to claim 1, wherein the unit support frame is configured to be connectable in the left-right direction by engagement of a connection member having a predetermined length. 3. The retaining wall structure for retaining walls according to claim 1, wherein the unit wall material is formed in a fixed-panel shape having a predetermined thickness from a water-permeable porous concrete. 4. The retaining wall structure for retaining walls according to claim 1, wherein the unit wall material is formed of a combination of wood having a predetermined thickness and a predetermined length. 5. A crushed stone or residual soil is filled and contained in a gap between unit wall materials formed by fitting unit wall materials into both holding portions arranged in front of and behind the unit support frame. 2. The retaining wall structure for retaining a ground according to 1.