JPH0825329A - Form for executing retaining wall and executing method for the same wall - Google Patents

Abstract

PURPOSE:To provide a form for easily executing a concrete retaining wall and a method for executing the wall by using the form. CONSTITUTION:The form for executing a retaining wall comprises a vertical board 3 in which a decorative material 1 such as a stone, etc., is placed on a surface and a trusslike, a horse shoe shape, or H shape connector 2 is provided, and a bottom board 4 directed from the lower end of the board 2 toward its rear surface side, wherein a through hole 5 is provided at the part of the board 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork capable of easily constructing a concrete retaining wall and a method for constructing a retaining wall using this formwork.

[0002]

2. Description of the Related Art Conventional construction of concrete retaining walls is carried out by embedding a vertical bar in advance when constructing a concrete foundation and then welding the reinforcing bars constituting the retaining wall to the vertical bars protruding above the concrete foundation. After connecting, enclosing this rebar with panels, connecting and fixing each panel with separator bolts, a method of putting ready-mixed concrete into the panel,
Methods such as stacking concrete blocks are being used.

[0003]

The above-mentioned conventional method requires a great deal of time and effort to form the reinforcing bars to be provided on the concrete foundation and to attach the panels, thus increasing the construction period. Further, the construction method using a concrete block has an advantage that the construction is easy and the construction period is short, but there is a problem that it is not suitable for the construction of a large retaining wall.

The present invention, in order to solve the above-mentioned problems of the conventional method of constructing a concrete retaining wall, a retaining wall construction form which facilitates construction, and a construction method using this form. Is provided.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a vertical board in which a decorative material such as stone is driven on the surface and a truss-shaped, horseshoe-shaped, H-shaped locking tool is provided on the back surface. And a bottom plate extending from the lower end of the vertical plate to the back side, and a construction form for a retaining wall in which a through hole is provided in a part of this bottom plate, and this construction form is placed on basic concrete, Insert the reinforcing bar that has been previously connected to the foundation concrete and started up into the through hole of the bottom plate to form a reinforcing bar above it, and set up a panel on the rear part of the bottom plate, and separate the vertical plate and the panel with separator bolts. After fixing, a concrete retaining wall is constructed by pouring ready-mixed concrete between the vertical plate and the panel.

[0006] Further, by repeating the above-mentioned construction on the concrete retaining wall constructed as described above, a concrete retaining wall is constructed on the upper side to raise the retaining wall in advance. Insert the rebar cages that have been connected and started up into the through holes provided in the bottom plate, and then set up the panel on the rear part of the bottom plate, and fix the vertical plate and the panel with separator bolts, and then between the vertical plate and the panel. A concrete retaining wall can be constructed by placing a concrete retaining wall on the upper side by repeating the construction method in which ready-mixed concrete is poured to construct the retaining wall, and the same construction as above is repeated on the concrete retaining wall constructed in this way. We also provide construction methods.

[0007]

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

1 and 2 show an embodiment of a form A for construction of a retaining wall, in which a plurality of decorative materials 1 made of stone or the like are driven into the front surface and a truss-like locking member 2 is attached to the back surface. A vertical platen 3 fixed by embedding a part of the vertical platen 3 and a bottom plate 4 extending from the lower end of the vertical plate 3 toward the rear surface side, and a structure having a through hole 5 in the bottom plate 4 are integrally formed of concrete. .

The locking tool 2 has a truss shape as shown in FIGS. 1 and 2, a plurality of horseshoe-shaped bent iron bars embedded as shown in FIG. 3 (I), and FIG. 3 (II). It is possible to use various shapes such as one in which H-shaped steel cut into short pieces is embedded.

In order to fix the separator bolts to the form A at the time of construction, a plurality of inserts 15 having female threads are embedded in the rear side of the vertical plate 3 of the form A as shown in FIGS. . Further, a plurality of inserts 16 having female threads for screwing bolts for fixing the panel are also embedded in the rear end surface of the bottom plate 4.

A method of constructing a retaining wall with the above-mentioned form A will be described below. That is, first, the concrete foundation 7 is constructed on the target ground 6 as shown in FIG. At this time, a plurality of reinforcing bars 8 are embedded. Next, as shown in FIG.
As shown in (II), a plurality of molds A are placed, and each rebar 8 is inserted into the through hole 5 and projected onto the bottom plate 4. At this time, it is advisable to interpose mortar between the foundation 7 and the bottom plate 4.

Then, as shown in FIG. 5, reinforcing bars 9 are fixed on the reinforcing bars 8 projecting on each bottom plate 4 by means such as welding, and transverse bars 10 and the like are fixed to the reinforcing bars 8 and 9 by means such as welding.

Further, the lower end of the panel 11 is applied to the rear end of each bottom plate 4, and fixing bolts 18 inserted into a plurality of holes provided at the lower end of the panel 11 are screwed into female screws of the insert 16 to stand the panel 11. After fixing a plurality of separator bolts 12 connecting the vertical plate 3 and the panel 11 by screwing them into the female screw of the insert 15, the vertical plate 3 and the panel 11 are fixed.
The ready-mixed concrete 13 is put in between to form the retaining wall B,
At this time, a panel is also fixed to the side surface of the form A at the end so that concrete does not leak from the side surface.

After the concrete retaining wall B is constructed as described above, the concrete retaining wall B which has already been constructed is repeatedly subjected to the same construction as shown in FIG. Build the wall B high.

As described above, in addition to the method of assembling the vertical reinforcing bars 8 and 9 and the horizontal reinforcing bars 10 at the time of construction to form the retaining wall B sequentially upward, the vertical reinforcing bars 21 and the spiral reinforcing bars 22 are used as shown in FIG. ,
There is also a method of connecting the preformed cage-shaped reinforcing bars C on the reinforcing bars 8 and constructing the concrete retaining wall B while adding the cage-shaped reinforcing bars C in the same process as in FIGS. 4 to 6.

According to this method, since the cage-shaped reinforcing bar C is produced in the factory in advance, the labor of assembling the reinforcing bar on the site can be omitted, so that the construction period can be shortened.

Each of the above-mentioned embodiments requires a panel, and it is necessary to remove the panel after construction, but the following construction method does not require a panel.

That is, as shown in FIG. 8, a pair of molds A are placed back to back on a wide base 7, and bolts 25 are fixed to the respective inserts 16 of the bottom plate 4 facing each other,
The turnbuckle 26 is screwed into the reverse screws provided in the portions of the bolts 25 facing each other to adjust the interval between the two molds A, and between the pair of molds A as in the above-described embodiments. In the construction method in which the reinforcing bars are appropriately constructed and concrete is placed, a retaining wall having a width twice or more that of the form A can be constructed, and no panel is required.

In the case of FIG. 9, a plurality of decorative materials 1 made of stone or the like are driven into the front surface, and a truss-like locking tool 2 is embedded into the rear surface to partially fix the flat board 30 formed of concrete. A plurality of inserts 31 having internal threads are embedded near the upper end of the plane board 30, and a plurality of insertion holes 32 are provided at the lower end.

The fixing bolts 33 inserted into the insertion holes 32 of the flat plate 30 as described above are screwed into the inserts 16 of the molds A to fix the molds A and the flat plate 30 into a channel shape. The bolts 25 are screwed into the opposing inserts 15 and 31, respectively, and the turnbuckles 26 are screwed into the reverse screws provided in the opposing portions of the bolts 25 to form the form A.
The space between the plane plate 30 and the plane plate 30 is adjusted, and a reinforcing bar is formed between the form A and the plane plate 30 or a cage-shaped reinforcing bar C is connected, and then concrete is poured into the concrete retaining wall to repeat. This method also requires no panel.

[0021]

As described above, according to the present invention, the number of panels used is remarkably reduced by using the form which is preliminarily formed in the L shape as described above, and the construction at the site is extremely easy and the construction period can be shortened. Connect

Moreover, since the decorative material is embedded in the surface of the vertical plate, the appearance is very good, and since the vertical plate and the bottom plate are integrated, a thick and extremely stable retaining wall can be manufactured.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a partially enlarged side view showing each example of a locking tool.

FIG. 4 is a perspective view showing a construction order.

FIG. 5 is a vertical sectional side view of the constructed retaining wall.

FIG. 6 is a vertical sectional side view of a retaining wall extended upward.

FIG. 7 is a vertical cross-sectional side view of an example using cage-shaped rebar.

FIG. 8 is a vertical sectional side view of an embodiment in which molds are opposed to each other.

FIG. 9 is a vertical cross-sectional side view of an embodiment using a mold and a flat board.

[Explanation of symbols]

 1 Decorative Material 2 Locking Tool 3 Vertical Plate 4 Bottom Plate 5 Through Hole 6 Ground 7 Foundation 8 Reinforcing Bar 9 Reinforcing Bar 10 Spiral Bar 11 Panel 12 Separator Bolt 13 Fresh Concrete A Retaining Wall Construction Form

Claims (5)

[Claims] 1. A vertical board having a surface made of a decorative material such as stones and a back surface provided with a truss-shaped, horseshoe-shaped, H-shaped locking tool, etc., and a bottom board from the lower end of the vertical board to the back surface side. A formwork for construction of a retaining wall characterized in that a through hole is provided in a part of this bottom plate. 2. A vertical plate having a surface made of a decorative material such as stones and a rear face provided with truss-shaped, horseshoe-shaped, H-shaped locking members, etc., and a bottom plate extending from the lower end of the vertical plate to the rear face side. The construction form for the retaining wall having a through hole in a part of the bottom plate is placed on the basic concrete, and the reinforcing bars that have been previously connected to the basic concrete and have been raised are inserted into the through hole of the bottom plate. After constructing a reinforcing bar above, further standing a panel on the rear part of the bottom plate, fixing the vertical plate and the panel with separator bolts, and then pouring ready-mixed concrete between the vertical plate and the panel to construct a concrete retaining wall. Retaining wall construction method characterized by the above. 3. A vertical board having a surface made of a decorative material such as stones and a back surface provided with a truss-shaped, horseshoe-shaped, H-shaped locking tool, etc., and a bottom board extending from the lower end of the vertical board to the back surface side. The construction form for the retaining wall having a through hole in a part of the bottom plate is placed on the basic concrete, and the reinforcing bars that have been previously connected to the basic concrete and have been raised are inserted into the through hole of the bottom plate. After constructing a reinforcing bar above, further standing a panel on the rear part of the bottom plate, fixing the vertical plate and the panel with separator bolts, and then pouring ready-mixed concrete between the vertical plate and the panel to construct a concrete retaining wall. A retaining wall construction method characterized in that a concrete retaining wall is constructed above by repeating the same construction as above on the already constructed concrete retaining wall. 4. A vertical plate having a surface made of a decorative material such as stones and a rear face provided with truss-shaped, horseshoe-shaped, H-shaped locking members, etc., and a bottom plate extending from the lower end of the vertical plate to the rear surface side. A construction frame for a retaining wall having a through hole in a part of this bottom plate is placed on the foundation concrete, and a reinforcing bar cage that has been pre-connected to the foundation concrete and started up is inserted into the through hole provided in the bottom plate. Further, a retaining wall characterized in that a panel is erected on the rear part of the bottom plate, the vertical plate and the panel are fixed with separator bolts, and then concrete is put between the vertical plate and the panel to construct a concrete retaining wall. Construction method. 5. A vertical board having a surface made of a decorative material such as stones and a back surface provided with a truss-shaped, horseshoe-shaped, H-shaped locking tool, etc., and a bottom board from the lower end of the vertical board to the back surface side. A construction frame for a retaining wall having a through hole in a part of this bottom plate is placed on the foundation concrete, and a reinforcing bar cage that has been pre-connected to the foundation concrete and started up is inserted into the through hole provided in the bottom plate. Further, a panel is erected on the rear part of the bottom plate, the vertical plate and the panel are fixed with separator bolts, and then concrete is put between the vertical plate and the panel to construct a concrete retaining wall. A method for constructing a retaining wall, characterized in that a concrete retaining wall is constructed upward by repeating the same construction as above on the wall.