JP2003293446A - Construction method for concrete floor part in entrance porch and sheathing material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction method for a concrete floor part in an entrance porch, enabling facilitating of construction, reducing the amount of reinforcement bars, and reducing the quantity of placed concrete. <P>SOLUTION: A light sheathing material 2 formed of Styrofoam includes a peripheral wall part 5 having a designated height, wherein the upper side of the peripheral wall part 5 is opened, and a projecting part 6 projected inward from the peripheral wall 5 is integrated with the bottom side of the peripheral wall part 5. After the sheathing material 2 is installed, the interior of the annular peripheral wall 6 of the sheathing material 2 is filled with earth 3, and then concrete is placed so that the sheathing material 2 and the earth 3 are put in the embedded state. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a concrete soil portion of an entrance porch and an earth retaining material.

[0002]

2. Description of the Related Art For example, as a method for constructing a concrete soil portion in an entrance porch, as shown in FIG.
5 and the dirt floor 56 can be constructed by one-time concrete pouring, in the portion corresponding to the entrance port in the formwork 54 ... At least the upper surface and the surrounding four surfaces, or a styrofoam box 51 with all six surfaces closed. Is installed, and concrete 53 is placed so that the Styrofoam box 51 is in an embedded state. A cardboard box may be used instead of the styrofoam box 51.

[0003]

However, since the styrofoam box 51 and the cardboard box are lightweight, it is necessary to take special measures to prevent the box 51 from rising when the concrete 53 is placed. There was a problem that construction was troublesome.

Further, since the styrofoam box 51 and the cardboard box are hollow inside and are fragile in strength,
It is necessary to arrange many slab muscles in the upper part,
Also, it was necessary to drive the slab concrete thick.

In view of the above-mentioned conventional problems, the present invention provides, for example, in the above-mentioned foundation soil integral construction method,
An object of the present invention is to provide a method for constructing a concrete soil portion in a entrance porch or the like, which can be easily constructed, can reduce the amount of rebar, and can reduce the amount of concrete to be injected.

[0006]

[Means for Solving the Problems] The above-mentioned problem is to have a peripheral wall portion having a predetermined height dimension, the upper surface side of this peripheral wall portion is open, and an overhang protruding inwardly from the peripheral wall to the bottom side of the peripheral wall portion. Using a lightweight soil retaining material such as Styrofoam with integrated parts, after installing this soil retaining material, fill the annular peripheral wall of this soil retaining material with soil, and then, with the soil retaining material and soil. This is solved by a method of constructing a concrete soil portion in a porch or the like, which is characterized in that concrete is placed so that the concrete is embedded.

In this method, since the lightweight soil retaining material is filled with the soil, the soil fills on the overhanging portion on the bottom side of the soil retaining material and is firmly adhered to the ground by the soil filling. Is fixed. Therefore, even if the concrete is placed so that the soil retaining material and the soil are embedded, the lightweight soil retaining material does not float up, and of course the soil does not float up. The soil retaining material and the soil can be properly embedded in the concrete.

Since the upper surface side of the soil retaining material is open and the soil is simply filled through the upper surface side of the soil retaining material, the soil filling material is lifted on the overhanging portion and is in a restricted state, so that the soil retaining material is retained. It is not necessary to take troublesome measures for the construction to prevent the material from rising, and it is possible to easily form the restriction state of lifting and to easily construct the concrete soil portion in the entrance porch or the like.

Furthermore, since the soil is filled inside the soil retaining material, the soil supports the concrete portion from below, so that the amount of concrete to be driven can be reduced and the amount of reinforcement is reduced or reduced. It is also possible to omit the lines. Further, when the above-mentioned construction method is adopted in the construction of a building, it is sufficient to fill the soil retaining material with the residual soil generated in the construction, and the residual soil can be effectively used to reduce the amount of the residual soil.

As the earth retaining material, the rising wall portion has an angle shape in a plan view, and a corner portion accessory having a projecting portion projecting inward from the rising wall portion on the bottom side, and the rising wall portion in a plan view. It has a straight shape and a general part character provided with a protrusion on the bottom side that rises inward from the wall part, and corner part character parts of the four corners are connected directly or through the general part character. It is also possible to use one that is designed to form an annular peripheral wall portion.

With the earth retaining material having this structure, it is possible to easily manufacture the earth retaining material having a large plane size simply by selecting the number of general members used. Moreover, it is possible to form the earth retaining material having such a large plane size with less material. Further, it is possible to easily form the soil retaining material having different sizes.

In particular, when the earth retaining material is composed of one type of corner portion material and one type of general portion material, such an earth retaining material can be formed with a cost advantage. .

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

The embodiment shown in FIGS. 1 to 4 is a case where the present invention is applied to a method of simultaneously constructing a concrete soil part in a entrance porch of a building such as a house together with a concrete foundation part. 1 is concrete foundation, 2
Is an earth retaining material, 3 is a filling soil, and 4 is a concrete soil portion.

The earth retaining material 2 used for constructing the concrete soil portion 4 is made of styrofoam and has a peripheral wall portion 5 having a predetermined height as shown in FIG. The upper surface side is opened, and the bottom side of the peripheral wall portion 5 is integrally provided with an overhang portion 6 protruding inward from the peripheral wall portion 5.

This earth retaining material 2 includes one kind of corner portion accessory 7 as shown in FIG. 2B, and FIG.
It is made by using one kind of general club accessory 8 as shown in 2). The corner part accessory 7 is the rising wall part 7a.
Has an angled shape in plan view, and is provided with a projecting portion 7b projecting inward from the wall portion 7a on the bottom side, and
In the general part accessory 8, the rising wall part 8a has a linear shape in a plan view, and the projecting part 8 projecting inward from the wall part 8a on the bottom side.
It consists of the one with b.

Further, the projections 7c, 7c for connection are provided at one end of the corner accessory 7, and the recesses 7d, 7d for connection are provided at the other end thereof. Concerning the part 8 as well, the projection 8 for connection is provided at one end thereof.
c and 8c are provided, and recesses 8d and 8d for connection are provided at the other end, and by connecting these concavities and convexities to connect the accessory parts, it is shown in FIG. Such a soil retaining material 2 can be formed.

The earth retaining material 2 shown in FIG. 2 (a) is composed of two general-purpose parts 8 between corner parts 7 ...
Although 8 pieces are provided, a small size earth retaining material can be obtained by inserting 1 general part accessory, one piece on one opposite side, and one piece on the other opposite side. It is also possible to form an earth retaining material having a rectangular shape in a plan view by interposing two general parts and accessories.

In the earth retaining material 2 described above, a rising 6a is provided at the tip of the overhanging portion 6 on the bottom side so that the overhanging portion 6 is prevented from being caught downward by the filling soil.

Further, a groove 5a is provided on the top surface portion of the peripheral wall portion 5, and a bar member 9 made of plywood or the like is installed in the groove 5a so that the peripheral wall portion 5 is prevented from being squeezed outward by the filling soil. ing. In addition, as shown in FIG.
By installing the bar material 9 so as to pass it between the adjoining accessories, it is possible to further reduce the entrainment of the peripheral wall portion 5 due to the filling soil, but the present invention is not limited to this, and the bar material is provided for each accessory. 9 may be installed. Also, the bar member 9 may be installed in a fixed state by adhesion so as to be integrated with the accessory.

Construction may be carried out as follows. That is, as shown in FIGS. 3A and 3B, the mold 15 ...
The earth retaining material 2 is installed on the center side of the ground 10 inside, that is, on the portion corresponding to the soil portion.

Next, as shown in FIGS. 4C-1 and 2C-2, the soil 3 is filled inside the soil retaining material 2. Soil 3 should be used if there is leftover soil. By this filling, the soil 3 is also filled inside the earth retaining material 2 also in the upper portion of the overhanging portion 6, whereby the earth retaining material 2 receives the weight of the filled soil 3 and is fixed to the ground 10 side. Note that the soil 3 may be filled by being pressed from above so as to be in a compressed state in the soil retaining material 2. Due to the action of the bar 9 and the rising 6a for restricting the earth, the earth retaining material 2 does not have a large light.

Then, after arranging the muscles as necessary,
As shown in FIG. 4D, the concrete 25 may be driven between the foundations 1 and 1 to cure and harden the concrete 25. Since the soil retaining material 2 receives the weight of the filling soil 3 at the overhanging portion 6 as described above, the soil retaining material 2 does not float up when the concrete 25 is driven.
Thus, as shown in FIG. 1, the concrete foundation portion 1 and the concrete soil portion 4 are simultaneously and integrally constructed.

As described above, according to the above construction method, the lightweight earth retaining material 2 such as styrofoam is used as the embedding material in the concrete 25, and the soil retaining material 2 is simply filled with soil. Therefore, it is possible to prevent the soil retaining material 2 from rising when the concrete 25 is driven in.
The floating of the soil retaining material 2 can be easily prevented without taking any special measures, and the concrete soil portion in the entrance porch can be easily constructed.

Moreover, since the soil 3 is filled inside the earth retaining material 2, the concrete soil space 4 can be supported from below by the filled soil 3, thereby reducing the amount of concrete 25 to be poured. It is also possible to reduce the amount of reinforcement, or to omit reinforcement. In addition, as described above, the amount of residual soil can be reduced by using the residual soil at the time of construction as the filling soil 3.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above-described embodiment, the earth retaining material 2 is used as the earth retaining material, which is divided into a corner portion accessory 7 and a general portion accessory 8 and formed by combining these accessory 7,8. However, it is also possible to use an earth retaining material with an open top at the peripheral wall and an inward projection on the bottom, or open the top and leave the remaining 5 sides. A closed box-shaped earth retaining material may be used, or in addition to the foam retaining material 2 made of styrofoam, an earth retaining material such as cardboard may be used. It goes without saying that the term "lightweight" in "lightweight soil retaining material" by itself means a weight that causes rise in concrete. Further, the concrete soil portion is not limited to the one in the entrance porch, but the present invention can be widely applied in various places. Further, in the above embodiment, the case where the soil retaining material 2 is used for the method of simultaneously constructing the concrete foundation portion 1 and the soil portion 4 is shown, but the present invention is not limited to this, and concrete It goes without saying that it can be widely used in various cases where the amount of implantation is to be reduced.

[0027]

EFFECTS OF THE INVENTION Since the present invention is as described above, it is possible to easily carry out the construction of concrete soil in the entrance porch, etc., and further, it is possible to reduce the amount of reinforcing bars and the amount of concrete to be driven. You can

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a concrete soil portion in an entrance porch constructed by the method of the embodiment.

FIG. 2 shows an earth retaining material, FIG. 2 (a) is an overall perspective view, FIG. 2 (b) is a perspective view of a corner portion accessory, and FIG.
(C-2) is a perspective view of a general departmental accessory.

3 (a) and (b) are cross-sectional views sequentially showing the construction method together with FIG.

4A to 4C are cross-sectional views sequentially showing the construction method together with FIG.

FIG. 5 is a perspective view showing a conventional structure.

[Explanation of symbols]

2 ... Earth retaining material 3 ... Sat 4… Concrete dirt part 5 ... Surrounding wall 6 ... Overhanging part 7 ... Corner part 8 ... General club materials 25 ... Plastered concrete

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Akihiko Tomiyama             3-5 Umeda, Kita-ku, Osaka City, Osaka Prefecture             Wa House Industry Co., Ltd.

Claims (3)

[Claims] 1. A styrofoam or the like having a peripheral wall portion having a predetermined height dimension, an upper surface side of the peripheral wall portion being open, and a protruding portion projecting inward from the peripheral wall on the bottom side of the peripheral wall portion is integrally provided. After installing this earth retaining material using a lightweight earth retaining material, fill the annular peripheral wall of this earth retaining material with soil, and then, concrete is applied so that the soil retaining material and the soil become embedded. A method for constructing a concrete soil portion in a porch or the like, which is characterized by placing. 2. The earth retaining material according to claim 1, wherein the rising wall has an angle shape in a plan view, and a corner portion accessory having a projecting portion projecting inward from the rising wall on the bottom side. And the rising wall portion has a linear shape in a plan view, and the general portion character provided with a projecting portion projecting inwardly from the rising wall portion on the bottom side. The earth retaining material is characterized in that it is formed so as to form an annular peripheral wall portion by being connected through an object. 3. The earth retaining material according to claim 2, wherein the earth retaining material is composed of one kind of corner part accessory and one kind of general part accessory.