JPS6035640Y2 - Basement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a basement that is easy to construct and has sufficient structural strength.

Traditional concrete basements are constructed by assembling formwork in a large area dug into the ground, removing the formwork after the concrete poured between the forms has hardened, and backfilling the gap between the hole and the concrete wall with soil. It is built.

For this reason, there was a drawback that work such as assembling and removing the formwork was troublesome.

Also, even though it is just assembling the formwork, it takes time to assemble the plywood formwork to fit the shape of the basement, which tends to prolong the construction process, and especially during the rainy season, there is a risk of water seeping into the formwork. There were disadvantages such as the need to proceed with construction while paying attention to the above, which tended to lead to delays in construction.

This invention involves inserting a bottomed cylindrical inner formwork and a cylindrical outer formwork that are concentrically integrated with bolts into a hole formed in the ground, and concrete is placed between the inner formwork and the outer formwork. mass production is possible and assembly and installation are easy. The purpose of the present invention is to provide a basement which is excellent in waterproofness, has high strength, and has a structure in which articles stored inside can be easily organized.

An embodiment of the present invention will be described below with reference to the drawings.

The figure shows a vertical sectional view of an embodiment of the basement according to the present invention.

In the figure, reference numeral 1 denotes a storage basement, which is constructed by forming a cylindrical reinforced concrete wall 3 with a circular or square planar shape on a foundation 2 covered with mortar underground. serves as the foundation that supports the building above ground.

In the present invention, in particular, the cylindrical outer formwork 4 and the cylindrical inner formwork 5 when forming the concrete wall 3 are left as they are as part of the wall even after concrete is poured, and are used as a water-prevention wall or as a wall. It is designed to function as an interior decorative wall.

Hereinafter, construction of the basement 1 will be explained step by step.

First, in the area where basement 1 is to be constructed, a hole 60, which is slightly larger than basement 1, is dug as shown by the dashed line in the figure.

On the other hand, separately from this, the outer formwork 4 and the inner formwork 5 are manufactured by rotary molding in a factory, etc., and they are erected concentrically on a separately molded base 2, and then fixed with decorative bolts (spacers). ) 9 and fix the outer formwork 4 and the inner formwork 5 together.
A reinforcing bar 7 is placed between them, and the whole is lowered to the above-mentioned 66 by a crane or the like.

The outer frame 4 shown in the figure is formed by attaching plywood 4b to the top and bottom of a resin panel 4a manufactured by rotational molding, but the entire frame 4 can also be manufactured by rotational molding.

In the case of this embodiment, the inner formwork 5 is formed with two recesses 5a*5b which are useful for interior construction and interior decoration, and are convenient for organizing articles stored inside the inner formwork. A groove portion 5d for accommodating the head of the decorative bolt 9 is formed in the part of the formwork 5 through which the decorative bolt 9 passes.

Furthermore, the method of manufacturing both formworks 4.5 is not limited to the above.

Furthermore, the inner formwork 5 in the figure has a bottom 5c, and a mortar 8 is laid between the bottom 5c and the base 2, but the mortar 8 may be omitted.

Next, the holes 6 on the outside of the outer formwork 4 are backfilled with soil, and both formworks 4 and 5 are
Pour concrete in between.

In addition, the anchoring reinforcing bars 10 for constructing the wall panels of the building on the ground are as follows:
As shown by the two-dot chain line in the figure, it is best to bury it in the upper end of the poured concrete.

In this way, the basement 1 is completed when the concrete poured between the formworks 4 and 5 hardens as a wall, but as mentioned above, since the concrete is poured with earth pressure applied to the outer formwork 4 in advance, The outward lateral pressure during concrete placement can be offset by the above earth pressure.

According to the above-mentioned construction method, there is no need to support the outer formwork 4 and the inner formwork 5 using supporting members, etc., so the construction is simple, and therefore the construction period is short and labor costs are also reduced.

In addition, since both formworks 4 and 5 are so-called prefabricated products formed by rotary molding or the like in a factory, it is easy to standardize designs and unify specifications, and sufficient quality control is possible. Cost reduction is possible.

Note that since the inner frame 5 is formed with recesses 5a and 5b, these portions have a reinforcing rib effect, and the inner frame 5 is reinforced and has a strong structure.

Furthermore, since the groove 5d of the inner mold 5 accommodates the head of the lotion root 9, this head does not protrude from the inner circumferential surface of the inner mold 5. When an interior sheet or wallpaper is attached to the inner peripheral surface, these can be attached to the inner surface of the inner formwork 5 without forming a convex portion on the interior sheet or wallpaper.

Furthermore, since the inner formwork 5 can be of different shapes, the range of specifications can be expanded to meet the various demands of customers.

After concrete is placed between the formworks 4 and 5, it is also possible to backfill with soil.

In the above embodiment, the formworks 4 and 5 are erected on the base and suspended into the hole 6, but the base 2 is placed in the bottom of the hole 6, and the formwork 4 is placed on top of this. , 5 may be lowered.

As explained above, the basement of the present invention is constructed by inserting a bottomed cylindrical inner formwork and a cylindrical outer formwork that are concentrically integrated with bolts into a hole formed in the ground. Concrete is cast between the inner formwork and the outer formwork, a recess forming a shelf is formed in the peripheral wall of the inner formwork, and a groove is formed in the peripheral wall portion of the inner formwork through which the bolt penetrates, Since the inner formwork and the outer formwork can be formed and assembled in a factory or the like, mass production is possible and costs can be reduced.

In addition, since the outer formwork is cylindrical and the inner formwork is cylindrical with a bottom, there is no need to use members to support them during construction, making construction easier, shorter construction times, and lower labor costs. In addition, since the inner formwork is completely waterproof, interior work is easy, and since the inner formwork and interior material can be used as is, the interior work can be simplified.

Furthermore, the four parts formed in the inner frame can be used for storing articles, making it easy to keep the inside of the basement tidy.

In addition, since the recesses and grooves formed in the inner formwork serve as reinforcing ribs for the inner formwork, the inner formwork has high strength and sufficient strength.

[Brief explanation of drawings]

The figure is a vertical cross-sectional view of one embodiment of the basement according to the present invention. 1...Basement, 2...Foundation, 3...
...Concrete wall, 4...External formwork, 5...
...Inner formwork, 5a, 5b...Concavity, 5b.
...groove, 6 ... hole, 7 ... reinforcing bar.

Claims (1)

[Scope of utility model registration request] A bottomed cylindrical inner formwork integrally formed in a hole formed in the ground and a cylindrical outer formwork are assembled concentrically with an interval between their peripheral walls, and The peripheral wall of the inner formwork and the peripheral wall of the outer formwork are integrated and inserted by bolts that pass through them, and concrete is poured between the inner formwork and the outer formwork, so that the inner formwork A basement characterized in that a recessed part constituting a shelf is formed in the peripheral wall, and a recessed groove for accommodating the head of a bolt is formed in the part of the peripheral wall of the inner formwork through which the bolt passes.