JP3538494B2 - Construction structure of underground storage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a construction structure for an underground storage.

[0002]

2. Description of the Related Art In general, an underground storage box formed in a unit shape so as to be buried underground is known.

[0003] Conventionally, this kind of underground storage is buried in a hole excavated on the site prior to construction of the building, and the inside thereof is used as a storeroom or provided as a simple living space by providing ventilation equipment. I was doing. However, in the case of this underground storage, it must be buried prior to the construction of the building, so that in the case of an existing building, it cannot be constructed. Therefore, the present inventors have proposed a unit-type underground storage that is buried under a yard or a carport adjacent to a building and that can enter and exit through a hatch provided on the ground surface.

[0004]

However, in the case of the above-mentioned conventional underground storage, since it is buried independently of the building at all, it is buried in soft ground or unstable ground where there is a vein of groundwater. In the case of burying, an inconvenience arises in that the underground storage is raised or inclined and a stable construction state cannot be maintained for a long time.

The present invention has been made in view of the above circumstances, and has as its object to provide a construction structure of an underground storage having excellent workability on unstable ground.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the construction structure of an underground storage according to the present invention is an underground storage buried underground, which can enter and exit a hatch provided on the ground surface. It is a construction structure of a storage, and it is cut from the ceiling surface to the side wall surface at the periphery of the hatched ceiling surface.
A recessed portion having a notched inclined surface is formed , and concrete is cast on the recessed portion.

[0007]

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

FIG. 1 and FIG. 2 schematically show the construction of the underground storage 1.

That is, this underground storage 1 is
1. At two peripheral edges along the longitudinal direction of 1, an inclined surface 13 inclined toward the long side wall surface 12 is provided, and concrete 2 is buried on the inclined surface 13 in a state where it is cast.

This underground storage 1 has a height of 2 m and a width of 1.5.
It is formed in a housing shape having a length of 3 m and a length of 3 m, and can enter and exit through a hatch 14 provided on the ceiling surface 11. Also, both side portions along the longitudinal direction of the ceiling surface 11 are:
An inclined surface 13 that is cut out in a range of 30 cm in width and 50 cm in depth and that is inclined with a downward slope is provided.

The underground storage 1 thus constructed is, for example,
As shown in FIG. 2, it is buried under the carport 3 of a residential building (not shown). And on this inclined surface 13,
The ground surface is finished by placing concrete 2 over the ground surface.

At this time, the concrete 2 is cast so as to spread to some extent in the width direction. When the vehicle 4 is delivered to the carport 3 in this state, the load of the vehicle 4 is applied to the inclined surface 13 via the concrete 2. The surface load A from the ground including the load of the automobile 4 and the concrete 2 acts in the direction B in which the long side wall surface 12 is pushed outward via the inclined surface 13. In addition, since the side earth pressure C acts on the long side wall surface 12 inwardly of the long side wall surface 12, the surface load A and the side earth pressure C cancel out the stress, and the load bearing capacity is increased. The structure of the underground storage 1 excellent in gravity is obtained.

In addition, since the concrete 2 can be cast thicker by the amount of the inclined surface 13, the concrete 2 functions as an anchor even when the load of the automobile 4 is not applied. can do. Therefore, even in the case of unstable ground such as soft ground or underground water veins, a stable construction state can be maintained for a long period of time.

Further, in the case of the rectangular underground storage 1 having a length with respect to the width as described above, the left-right balance in the width direction is easily lost, but the concrete 2 is cast in a certain width in the width direction. Thereby, the left-right balance in the width direction is maintained, and even in an unstable ground, the levelness in the underground storage 1 can be maintained.

In this embodiment, the underground storage 1 buried under the carport 3 is described. However, the present invention is not particularly limited to the underground storage buried under the carport 3 and may be used in a residential building. The present invention can be applied to all cases where it is buried in an appropriate place such as an adjacent garden or a park.

Also, the shape of the underground storage 1 is not limited to the configuration in which the inclined surface 13 is provided only on two sides as in the present embodiment, and as shown in FIG. An inclined surface 13 may be provided on the entire peripheral edge of 11, and the concrete 2 may be cast so as to surround the entire upper surface of the inclined surface 13.

Further, in the present embodiment, the concrete 2 is cast on the inclined surface 13 and the surface load A including the own weight of the concrete 2 is used as the facing stress of the side soil thickness C. The present invention is not limited to the inclined surface 13, and may be a stepped notch (not shown) or the like.

[0018]

As described above, according to the present invention, a concave portion is formed in the peripheral portion of the ceiling surface provided with the hatch, and concrete is cast into the concave portion. The concrete portion can be cast thicker by the formation of the installation portion. Therefore, the concrete plays a role of an anchor, and it is possible to prevent the underground storage from rising. Therefore, even in the case of an unstable ground having soft ground or a vein of groundwater, a stable construction state can be maintained for a long period of time. Also, recessed part
Is from the slope cut out from the ceiling surface to the side wall surface
The weight of the concrete cast in this recess
The surface load, including the pressure, as the opposing stress of the side earth pressure.
And an excellent load bearing capacity can be obtained.

[Brief description of the drawings]

FIG. 1 shows an outline of the entire configuration of a construction structure of an underground storage.
It is a fracture | rupture perspective view.

FIG. 2 is a cross-sectional view showing a used state of the constructed underground storage.

FIG. 3 shows another embodiment of the construction structure of the underground storage.
It is a fracture | rupture perspective view.

[Explanation of symbols]

1 basement storage 11 Ceiling surface 13 Inclined surface (concave part) 14 Hatch 2 concrete

Claims (1)

(57) [Claims] 1. A construction structure underground storage case has been made into and out from the hatch provided in the ground surface in a state of being buried in the ground, the periphery of the ceiling surface provided with the hatch, roof Face to side wall
A construction structure of an underground storage, characterized in that a concave portion formed by a notched inclined surface is formed over the surface, and concrete is cast on the concave portion.