JPS62242019A - Basement - Google Patents

Abstract

PURPOSE:To enable component parts to be easily set with light weight and strength and complete water-tightness, by forming the parts integrally with fiber-reinforced concrete in a square box shape, and by covering an opening section with a top plate made of the same material to bury the component parts under ground. CONSTITUTION:The main unit 1 of a basement is formed in a box shape with the upper surface of an opening section and is formed integrally with fiber- reinforced concrete 3, and the external surface is provided with an elevated section 4 in a honey-comb shape. After that, in the elevated section 4, reinforcing bars 5 are embedded and are arranged in a honey-comb shape according to the elevated section 4, and an external force is dispersed by the reinforcing bars 5 in three directions of the honey-comb and is loaded. A top plate 2 is formed integrally with the fiber-reinforced concrete 3, and the internal surface is provided with the honey-comb-shaped elevated section 4 of reinforcement rib construction. As a result, the number of labor days on an erection site in poor labor conditions can be reduced extremely.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a basement that is integrally molded into a picture shape, which is easy to install, has high airtightness, and is low in cost.

(Prior art) Conventionally, a basement is constructed by digging into the ground to create a space, and then constructing a foundation with a concrete floor, walls, etc.
Construction of the walls required work such as formwork assembly, concrete pouring, curing, and formwork removal.

(Problem to be solved by the invention) Therefore, in the conventional basement, it is necessary to carry in, carry out, assemble, remove templates, etc., and pour concrete in a narrow underground space, which takes up less space than the net space of the basement. Although it was made quite wide, the work was still difficult and required a long work period due to the curing period, etc. In addition, basements especially need watertight walls, floors, etc., but the compaction during concrete placement is not sufficient, creating voids, and because the basement is constructed by pouring concrete, the fill is large. There was a problem.

(Means for Solving the Problems) The present invention provides a basement that is provided in order to solve the above problems, and is integrally molded with #a fiber-reinforced concrete in a rectangular shape with an open top. The opening is covered by a separately prepared top plate made of the same material and buried underground, making it lightweight, strong, easy to install, and completely watertight.

(Example) An example of the present invention will be described below. Reference numeral 1 denotes the basement main body, which has an internal shape with an open top surface and is integrally molded with fiber reinforced concrete 3. The fiber-reinforced concrete 3 is concrete in which inorganic fibers are mixed, and the fibers are usually compatible with cement, have high durability, and have high tensile strength.A typical example is alkali-resistant. glass fiber,
Carbon fiber, Kepler fiber, asbestos, and other ceramic fibers are used, and ideally they are mixed evenly in the form of short fibers and reinforced by vertical and horizontal intertwining of the fibers.

Further, the inner surface of the main body 1 is appropriately coated with a coating or a sheet, etc., and the outer surface is provided with a raised portion 4 in a honeycomb shape with continuous hexagonal shapes. It serves as a reinforcing structure to disperse and receive external forces applied to the surface of the main body 1 along the raised portions 4.

Further, reinforcing bars 5 are buried in the raised portion 4 and arranged in a honeycomb shape according to the raised portion 4, and the raised portion 4 is reinforced by the reinforcing bars 5, and the external force is dispersed in three directions of the honeycomb by the iron v55. It is designed to have high strength due to the raised portion 4 and reinforcement 5 inside it, and the wall thickness of the main body 1 is thinner than that of conventional concrete walls.

Further, the ridge portion where the wall surfaces 1a constituting the main body 1 are connected and the periphery of the opening 1b are formed by the raised portion 4' and the helical cam-shaped reinforcing bar 2.
A reinforcing beam 6 made of reinforcing bars 5'' connected to each other is formed, and reinforcing girders 6'' having the same structure as the reinforcing beam 6 are provided at appropriate intervals on the bottom surface 1c, and the reinforcing girders 6° have an arcuate cross section. As a concave surface, the pressure contact of the skirting surface to the ballast is made to be as even as possible.

Reference numeral 2 denotes a top plate divided into an appropriate number of sections that covers the main body 1, which is integrally molded from fiber-reinforced concrete 3 like the main body 1, and has a honeycomb-shaped raised portion 4 having a reinforcing rib structure on its inner surface. is provided. However, unlike the main body 1, a heat insulating material 8 such as foamed urethane, rock wool, glass wool, etc. is fitted into the recessed part formed between the raised parts 4 so that it is flush with the raised parts 4, A coating 7 is applied to this surface by mortar spraying, and the top plate 2 is fastened to the reinforcing beam 6 around the opening 1b of the main body 1 with ports 9, and is provided protruding from the upper surface of the periphery of the main body 1. A sealed seal 10 and a back-up material 11 fixed in a concave groove on the peripheral edge of the top plate 1 are used to form a sealed state. Reference numeral 12 denotes a groove provided at the periphery of the opening tb of the main body l.

The grooves 12 are designed to interrupt capillary action caused by fibers within the concrete.

Further, a hatch 13 is provided at one corner of the top plate 2, and a ladder or stairs 1 for ascending and descending extends from the hatch 13 to the bottom of the main body 1.
4 is installed. 15 is an indoor lighting box.

The outer surfaces of the main body 1 and the top plate 2 are coated with waterproof mortar, epoxy resin, or the like.

Then, in the basement, dig a hole large enough for the main body l, and
It is possible to install the cellar in a basement simply by hanging it in the hole and fastening the top plate 2 together.

(Effects) As described above, the basement according to the present invention is integrally formed with fiber-reinforced concrete into a rectangular cocoon shape with an open top, and the opening is covered with a separately prepared top plate made of the same material. (1) Like a conventional basement, dig a hole that is wider than the installation space of the basement, set a mold in the hole, and pour concrete. There is no need to perform waterproofing, painting, etc. after compaction, curing, mold removal, etc., and the number of work days at installation sites with poor working conditions is extremely shortened.

(2) Since the basement is made of fiber-reinforced concrete, it is stronger than conventional concrete, and since it is constructed from thin walls and is lightweight, it is easy to install, and requires less material, making it economical. In particular, if the reinforcing structure has honeycomb-like ridges in the form of ribs on the entire surface and the reinforcement is arranged along the ridges as in the example, it can be made even lighter, making it extremely easy to install in a basement. It is.

(3) Also, since the main body is integrally molded in a factory and even undergoes painting and other treatments, a homogeneous product can be obtained through efficient and careful work, and the density of the concrete is constant, making it a one-piece product with no apertures. This ensures watertightness and airtightness,
Moreover, since the same product can be mass-produced, costs are reduced.

(4) Since the hole for installing the basement is simply installed by suspending the basement, there is no need to provide a large margin for the size of the basement.

Less excavation and backfilling work is required.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of a basement according to the present invention, and FIG.
The figure is a sectional view of the same in the installed state, and FIG. 3 is a perspective view showing the hanging operation of the main body. DESCRIPTION OF SYMBOLS 1... Main body, 2... Top plate, 3... Fiber reinforced concrete, 4... Raised portion, 5... Rebar, 6... Reinforced beam, 6゛... Reinforced girder, 9...volt, 13.../
\Latch 14...Ladder, 15...Lighting box.

Claims (1)

[Claims] A basement characterized in that it is integrally molded with fiber-reinforced concrete into a rectangular shape with an open top, and the opening is covered with a separately prepared top plate made of the same material and buried underground.