JPH0732733Y2 - Entrance / exit mechanism in surface or underwater cylindrical structures. - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] The present invention relates to an entrance / exit mechanism for a cylindrical structure below the surface of the water or the surface of water, and can reduce the labor cost and construction area for an underground structure such as a cylindrical structure. Aims to obtain an entrance / exit mechanism that does not hinder the use of the internal space of structures.

(Industrial application field) An entrance / exit mechanism for underground or underwater cylindrical structures.

(Prior art) In principle, various structures are set on the ground,
Recently, it has been proposed and put into practical use to set up such a structure in the ground or underwater, and the present inventor has also made some proposals for such an underground structure. That is, in an underground structure or an underwater structure, there is no or little influence of temperature, sound, radio waves or electromagnetic waves, and a preferable living or working space can be obtained. Moreover, the recent rise in land prices makes it extremely difficult to obtain or use land (surface), and the price of land is often more expensive than the price of the structure itself. Obviously it is advantageous to provide

However, for these underground structures, cylindrical structures can be easily constructed by directly using large steel pipes, etc.
It can be built, but in such a structure, it is essential to provide an entrance from the ground. However, as such an entrance / exit, an entrance / exit such as an inclined stairway is formed so as to reach the walking surface of the structure. On the other hand, the entrances and exits of stairs are being installed.

(Problems to be solved by the invention) As an entrance / exit of the above-mentioned conventional underground structure, an entrance / exit floor is formed outside the structure to form an entrance / exit reaching the floor of the structure, and stairs, etc. are formed to the entrance / exit floor. The sloping formation requires a considerable amount of land space separately from the underground structure setting area, otherwise most of the space used in the underground structure is consumed. I.e. of the order of a few m ₂ to 20 m ₂ as such Such underground construction is commonly the case that is employed etc. residential, doorway like acreage and about equivalent required like those subsurface structures Often requires a lot of land for setting up, or most of the underground structures are entrances and exits.

This inevitably increases the amount of materials and the amount of work and cost for forming the entrance and exit, and the advantage of setting the construction of a cylindrical underground structure with a sharp angle is impaired due to this entrance and exit mechanism. I have no choice.

"Constitution of device" (Means for solving the problem) (1) In a cylindrical structure provided horizontally on the surface or below the water surface in the axial direction, a staircase based on a floor or a walking surface inside the structure Only the lower half portion of the structure is provided by inserting it from the circular side surface of the lower half portion of the structure, and the upper half portion of the stairs is projected outward from the circular side surface of the upper half portion of the structure to reach the surface or the water surface An entrance / exit mechanism for a cylindrical structure below the surface or under the water.

(Operation) By using a cylindrical structure, the workability of the structure is improved and the strength is sufficiently improved.

The entrance and exit are provided by inserting only the lower half of the entrance staircase into the circular side surface of the lower half of the structure based on the floor or walking surface formed in the cylindrical structure with the horizontal axial direction. The land space required to form the ridge is significantly reduced, and the inner space of the side cylindrical structure is not narrowed due to the entrance stairs.

The other half of the entrance staircase is projected from the circular side surface of the upper half of the structure to reach the surface of the earth or the surface of the water, so that the surface use area for the entrance is not hindered.

The entrance that forms a half of the stairs based on the walking surface formed in the structure as described above functions as an effective lighting port or ventilation port (outside air intake) by itself, for example, as a lighting port. In this case, it is possible to linearly guide abundant light quantity outside into the structure.

(Example) A concrete embodiment of the present invention as described above will be described with reference to the accompanying drawings. As shown in FIGS. 1 to 3, the cylindrical structure 1 is buried underground, for example. Is a known one, and in the illustrated one, a steel pipe having an inner diameter of about 2 to 3 m is used as the structure 1, a floor 11 is provided at the bottom thereof, and a space is provided between the floor 11 and the bottom of the structure. A storage unit 13 having a mouth 12 is provided with a lid 14.

In the present invention, as the entrance / exit 5 for the cylindrical structure 1 as described above, the lower half of the stairs 2 based on the floor 11 or the walking surface in the structure 1 is formed from the circular sidewall of the lower half of the structure 1 to the inside. In addition, the upper half of the staircase is provided so as to open to the ground surface 3 through the upper half circular side surface 1a which is the ceiling surface of the structure 1, and the door 4 is provided at the opening 2b. Properly set. The staircase 2 is the lower half 2a of the cylindrical structure 1.
Can be detached from the portion outside the structure 1 and can be removed. By doing so, it is possible to eliminate the internal use restriction caused by providing the stairs in the structure 1. The lower half portion 2a separated as described above can be made of aluminum, which is different from the iron-based member of the fixed upper half portion, or the like, and can be made lightweight such as wood, which facilitates the handling operation. To do.

The outside air intake 6 is formed for the structure 1 as described above, as shown in FIG. 3, but such an outside air intake 6 is provided with stairs as shown in FIGS. It can also be used as an evacuation exit 8 provided with a ladder 7. Even in this case, the lower part of the stairs or ladder 7 is opened in the structure 1, and the stairs or ladder 7 can be climbed directly from the floor 11 surface. To be able to do.

Although the above is a case of an underground structure, the one according to the present invention can be adopted almost as it is even for an underwater structure. That is, in the case of this underwater structure, the surface of the earth becomes the water surface, and a jetty or the like may be appropriately guided to the entrance / exit. In the case of this underwater structure, a transparent window or the like can be appropriately provided on the structure 1 or the side wall of the entrance / exit to make it suitable for underwater observation.

"Effects of the Invention" According to the present invention as described above, this type of underground structure can be easily constructed as a cylindrical structure, and sufficient strength can be secured. In any case, it is possible to significantly reduce the amount of land required for the formation of entrances and exits, and to reduce the amount of materials for forming entrances and exits, as well as the man-hours required for the construction. It is possible to provide a remarkably low-cost underground structure with an entrance and exit, and further, it is possible to easily eliminate the hindrance to the use of the internal space of the cylindrical structure. It is a device.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show the technical contents of the present invention. FIG. 1 is a plan view showing an example of the present invention, FIG. 2 is a vertical side view thereof, and FIG. FIG. 4 is a lateral side view, FIG. 4 is a vertical side view of another embodiment of the present invention, and FIG. 5 is a plan view thereof. Therefore, in these drawings, 1 is a cylindrical structure, 1a is its side wall or ceiling surface, 2 is stairs, 2a is its lower half,
3 is the surface or the water surface, 4 is the door, 5 is the entrance, 6 is the outside air intake, 7 is the stairs or ladders, 8 is the evacuation exit, 9 is the floor of the above-ground building, and 11 is the floor or the walking surface. .

Claims (1)

[Scope of utility model registration request] 1. In a cylindrical structure provided horizontally on the surface or below the water surface in the axial direction, only the lower half of the stairs based on the floor or walking surface in the structure is the lower half of the structure. A cylinder below the surface of the water or a surface of the water, which is provided by being inserted into the inside from the circular side surface, and the upper half of the staircase is projected outward from the circular side of the upper half of the structure to reach the surface of the water or the surface of the water. Entrance / exit mechanism in the structure.