JP2860432B2 - How to build underground structures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[Industrial applications]

The present invention relates to a method for constructing an underground building made of reinforced concrete.

[Prior art]

Conventionally, when constructing an underground structure made of reinforced concrete, a reinforcing member such as a vertical reinforcing bar or a horizontal reinforcing bar made of reinforcing steel is arranged on a floor, a wall and a roof of a hole to be dug in the ground. Forming panels are arranged on both sides of the steel sheet, and concrete is poured between the forming panels to construct an underground structure made of reinforced concrete.

[Problems to be solved by the invention]

In the above-mentioned conventional technology, it is troublesome to arrange reinforcing bars such as vertical bars and horizontal bars made of reinforcing bars, or to arrange a panel for formwork inside a hole that is difficult to work,
Furthermore, there is a problem that the mechanical strength varies unless the reinforcing members such as vertical and horizontal streaks are arranged with high accuracy. In addition, since concrete does not have water-blocking properties, drainage treatment is required for underground structures. There was also a problem that it had to be applied. The present invention has been made to solve the above-mentioned conventional problems, and it is necessary to arrange reinforcing bars or formwork panels inside a hole that is difficult to work. Therefore, it is an object of the present invention to provide a method of constructing an underground structure that does not cause a variation in mechanical strength due to reinforcement arrangement accuracy, and furthermore significantly improves the water shielding of the underground structure. is there.

[Means for Solving the Problems]

In order to solve the above-mentioned problem, the present invention provides a reinforcing bar unit by integrating a plurality of mesh-shaped reinforcing bars side by side at an interval to form a reinforcing bar unit, and forms a reinforcing bar near an inner surface and an outer surface of the reinforcing bar unit. A panel is integrated and a water-impervious sheet is attached from at least one outer surface of the formwork panel to the side surface of the reinforcing bar unit to form a floor panel member and a wall panel member. A desired number of the floor panel members are erected and connected and fixed to the floor of the hole to be provided, and the desired number of wall panel members are erected and connected and fixed to the hole wall.
In addition, concrete is cast between the panels for the formwork of the floor panel member and the wall panel member, and then a roof is formed in an opening at the upper end of the wall panel member to construct an underground structure. It is.

【Example】

Hereinafter, the present invention will be described in more detail with reference to the drawings shown as examples. 1 to 3 show a plurality of mesh-shaped reinforcing members 1,
1 and 2 show different embodiments of a reinforcing bar unit 2 formed side by side at an interval and integrally formed, and FIG.
Are arranged side by side at intervals with a plurality of mesh-shaped reinforcing members 1, 1,. 2 shows a reinforcement arrangement unit 2 formed by welding and integrating the upper end and the lower end of each of the reinforcements 4, 4,..., And FIG. 2 shows a mesh formed by the reinforcements 3, 3,. The upper and lower ends of the reinforcing members 1, 1,... Are shown as reinforcing members 2 formed by welding and integrating via supporting frames 5, 5 formed by bending a reinforcing bar. Are arranged side by side at intervals, and the upper ends of the mesh-shaped reinforcing members 1, 1,... The reinforcing bar unit 2 is formed by welding and integrating the lower end portion with the reinforcing bars 7, 7,... FIG. 4 and FIG. 5 show that the formwork panels 8, 8 are arranged and integrated near the inner surface and the outer surface of the reinforcing arrangement unit 2 and are arranged from at least one outer surface of the formwork panels 8, 8. Polyethylene sheet over the side of the muscle unit,
FIG. 4 shows different embodiments of the floor panel member 10 and the wall panel member 11 formed by applying a synthetic resin sheet such as a polypropylene sheet, a rubber sheet, and other water-blocking sheets 9. Formwork panels 8, outside the mesh-shaped reinforcing members 1, 1 facing the inner surface 12 and the outer surface 13,
8 and floor panel member 10 and wall panel member integrated
FIG. 5 shows the inner surface 12 and the outer surface of the bar arrangement unit 2.
1 shows a floor panel member 10 and a wall panel member 11 in which formwork panels 8, 8 are arranged and integrated inside the mesh-shaped reinforcing members 1, 1 facing 13. When the form panels 8, 8 are arranged and integrated as described above, for example, as shown in FIGS. 4 and 5, the form panels 8, 8 are connected to the long bolts 14 and Nut 15
When the form panels 8 are fastened to the mesh-shaped reinforcing members 1 by using an attachment such as a tucker, the form panels 8 are securely connected. It is optimal because it can be arranged and integrated. FIGS. 6 and 7 show a case where a water-blocking sheet 9 is applied from the outer surface of the formwork panel 8 to the side surface of the reinforcing bar unit to form a floor panel member 10 and a wall panel member 11. FIG. 6 shows a water-shielding sheet 9 attached to the outer surface of a formwork panel 8, and further, the edges of the water-shielding sheet 9 are attached to a floor panel member 10 and a wall panel member 11 as shown in FIG.
FIG. 7 shows an embodiment in which a water-shielding sheet 9 is applied to the outer surface of a formwork panel 8 by folding it over the side surface portion of the reinforcing bar unit, An embodiment is shown in which an edge portion is folded back from the side surface portion to the back surface portion of the reinforcing member unit constituting the floor panel member 10 and the wall panel member 11, and is attached. Also, as shown in FIGS. 6 and 7, the edge of the water-blocking sheet 9 is folded back from the side surface of the reinforcing bar unit constituting the floor panel member 10 and the wall panel member 11 and from the side surface to the back surface. 8, the desired number of the floor panel members 10 are erected and connected to the floor of the hole to be dug in the ground 16 as shown in FIG. A desired number of wall panel members 11 are erected and connected to the wall portion, fixed with bolts and nuts, and the like, and concrete 17 is placed between the floor panel members 10 and the formwork panels 8 of the wall panel member 11. When constructing an underground structure by forming a roof 18 at the opening at the upper end of the wall panel member 11 and then interposing a water-impervious sheet 9 at the connection between the floor panel member 10 and the wall panel member 11 Watertightness can be improved. When a roof 18 is formed in the opening at the upper end of the wall panel member 11 as shown in FIG. 8 to construct an underground building, a roof panel member having the same structure as the wall panel member 11 and the floor panel member 10 is used. When the roof 18 is formed by using the same, the floor, the wall, and the roof can be formed by the same method using the same members, so that the underground building can be easily and quickly constructed. When a desired number of the floor panel members 10 and the wall panel members 11 are erected and connected and fixed, the floor panel members 10 and the wall panel members 11 are connected to and fixed from the side ends of the reinforcing members 2 constituting the floor panel members 10 and FIG. As shown in FIG. 2, the connecting pieces 19, 19,.
, And the connecting pieces 19 are overlapped and welded together as shown in FIG. 9 to form a continuous connection, or as shown in FIG. Are welded to the side end portions of the reinforcing bar unit 2 so as to protrude, and the side end surfaces of the reinforcing bar units 2 and 2 are abutted as shown in FIG. It may be connected continuously by welding and integrating through 20,. If the concrete 17 is hard to be poured between the form panels 8 and 8 as described above, an injection hole is formed in the form panel 8 and the injection hole is formed. The concrete 17 may be poured and cast, or some formwork panels 8 may be arranged after the concrete 17 is cast. Also, as described above, a plurality of mesh-shaped reinforcing members 1, 1,.
.. Are arranged side by side to form the reinforcing bar unit 2, as shown in FIGS. 1 to 3, a desired number of mesh reinforcing bars are provided between the two mesh reinforcing members 1, 1. When the bodies 1 are juxtaposed and integrated, the mesh-shaped arranging bodies 1 juxtaposed inward exert the action of the main muscle. The underground structure constructed according to the present invention includes a floor,
The interior panel of the wall and the roof may be removed as necessary, and an interior material may be attached to finish the interior.

【The invention's effect】

As described above, according to the present invention, a plurality of mesh-shaped reinforcing members are juxtaposed and integrated at intervals to form a reinforcing member, and a formwork panel is disposed near the inner surface and the outer surface of the reinforcing member. A hole for attaching a water-impervious sheet from at least one outer surface of the formwork panel to a side surface of the reinforcing bar unit to form a floor panel member and a wall panel member, and further digging the ground. A desired number of the floor panel members are erected and connected to and fixed to the floor portion, and a desired number of wall panel members are erected and connected and fixed to the wall of the hole, and the molds of the floor panel members and the wall panel members are formed. Concrete is cast between the frame panels, and then a roof is formed at the opening at the upper end of the wall panel member to construct an underground structure. It acts as a material and Forming panels are pre-arranged and integrated near the inner and outer surfaces of the reinforcing bar unit consisting of the reinforced bar-shaped reinforcing members, and the floor panel member and the wall panel member are formed in advance. There is no need to arrange reinforcing bars or formwork panels inside the difficult holes, and therefore, there is no risk of causing variations in mechanical strength due to the accuracy of the arrangement of the reinforcing members, and can be added. In addition, the lack of water-blocking, which is a drawback of concrete, can be improved by the water-blocking sheet, and the watertightness of the connecting parts such as floor panel members and wall panel members can be improved. The water barrier is also significantly improved.

[Brief description of the drawings]

1 to 10 show an embodiment of the present invention, and FIGS. 1 to 3 are perspective views showing different embodiments of the bar arrangement unit.
FIGS. 5 and 5 are enlarged longitudinal sectional views of the main parts of different embodiments of the floor panel member and the wall panel member, and FIGS. 6 and 7 show different coverings of the water-impervious sheet on the floor panel member and the wall panel member. FIG. 8 is a schematic longitudinal sectional view showing a wearing state, FIG. 8 is a longitudinal sectional view of an essential part of an embodiment of an underground building, FIG. 9 and FIG.
The figure is a perspective view showing different connected states of the floor panel member and the wall panel member. 1 ... mesh-shaped reinforcing member, 2 ... reinforcing member unit, 8 ...
Formwork panel, 9: Water-blocking sheet, 10: Floor panel member, 11: Wall panel member, 16: Ground, 17: Concrete, 18: Roof.

Claims (1)

(57) [Claims] 1. A plurality of mesh-shaped reinforcing members are arranged side by side at an interval and integrated to form a reinforcing member unit, and formwork panels are disposed and integrated near inner and outer surfaces of the reinforcing member unit. At the same time, a water-impervious sheet is applied from at least one outer surface of the formwork panel to the side surface of the reinforcing bar unit to form a floor panel member and a wall panel member, and further, on a floor portion of a hole to be dug in the ground. A desired number of the floor panel members are erected and connected and fixed, and the desired number of wall panel members are erected and connected and fixed to the wall of the hole, and between the floor panel member and the form panel of the wall panel member. A method of constructing an underground building, comprising: placing concrete in a ceiling, and then forming a roof in an opening at an upper end of the wall panel member.