JP2007085115A - Tub having side wall composed of construction material having strength - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose a tub of joining both of an advantage of using a plastic unit member and an advantage of using concrete. <P>SOLUTION: This tub is buried under the ground. The tub is composed of a side wall part composed of a construction material having strength, a plate having a cutout in an end part, a table-like unit member composed of a cylindrical part of opening and projecting in the plate, a plate-like unit member of cutting out an end part and having strength, and a ceiling member. The tub having a side wall composed of the construction material having strength, is formed so that a layer of arranging the table-like unit member is formed inside the side wall part, and a horizontally arranged beam part is formed by supporting a plane-like unit member on a table-like unit member layer by the table-like unit member, and horizontal earth pressure applied to the side wall is supported by the beam part, and the layer and a hole part formed in the beam part are covered with the ceiling member. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention belongs to a technology for constructing a tank related to storage and penetration of rainwater or the like.

Storage and infiltration tanks buried underground for the purpose of suppressing or effectively using rainwater are plastic unit members arranged to secure storage space and covered with appropriate sheets, box culverts or Various types such as those made of concrete have been proposed and used. Various examples of using plastic unit members have been proposed, such as JP-A-912792, JP-A-10-252108, and JP-A-11-222886. A storage and penetration tank using a concrete box culvert is proposed in Japanese Patent Laid-Open No. 07-166595.
Tanks that use plastic unit members can be constructed in a short construction period without using heavy machinery, but there is a problem that they are difficult to use due to their strength in places with high vertical and horizontal earth pressure. On the other hand, the concrete tank has no problem in terms of strength, but has problems such as having to use heavy machinery and lengthening the construction period.

JP-A-912792 JP 10-252108 A JP 11-22288 JP 07-166595 A

This invention exists in the proposal of the tank which combined the advantage which uses a plastic unit member, and the advantage which uses concrete.

The first invention is a tank buried underground, the tank comprising a side wall portion made of a material having strength, a flat plate having a notch at an end, and a cylindrical portion that opens and protrudes from the flat plate. A table-like unit member, a flat plate-like unit member having a notch at the end, and a ceiling member, and forming a layer in which the table-like unit members are arranged inside the side wall portion, A hole portion formed in the layer and the beam portion is formed on the table-like unit member layer by forming a beam portion supported horizontally by the table-like unit member and horizontally supporting the horizontal earth pressure applied to the side wall by the beam portion. It is a tank which has the side wall comprised with the material which has the intensity | strength which covers a ceiling member. The horizontal unit pressure applied to the retaining wall is supported by arranging the flat unit members in a flat plate shape and forming a horizontal beam shape. The table-like unit member supports the beam composed of the flat plate-like unit member so as to pass between the side walls of the tank.
The second aspect of the invention is a tank buried underground, the tank having a side wall portion made of a material having strength, a flat plate portion having one or more strengths having notches at the end portions, and the flat plate. An array member that forms a shape including a cylinder penetrating through the ceiling member and a ceiling member, and the hole formed by the array member is arranged by arranging the array member inside the side wall so that the flat plate portion forms a horizontal beam. It is a tank which has the side wall comprised with the material which has the intensity | strength covered with.
In any of the inventions, the construction period is shortened by arranging unit members prepared in advance.

In the first aspect of the present invention, concrete or steel flat unit members having strength are arranged in a beam shape on a layer in which table-like unit members are arranged in a tank having side walls of concrete or steel plates having strength. Since the layers are arranged, the horizontal earth pressure is supported by the beam layer composed of the side wall and the flat unit member, and the beam is supported by the layer of the table-like unit member. Since the horizontal beams are formed by arranging the unit members, the construction period can be shortened.
In the second aspect of the invention, the arrangement member is prepared in advance as a unit member and arranged in the tank, so that the construction period can be shortened.
The horizontal earth pressure applied to the tank can be received by the side wall portion and the flat plate portion arranged in a beam shape.
In any of the inventions, a permeation tank or a storage tank is configured by combining unit members. In particular, in the case of a storage tank, the water shielding is extremely difficult for a concrete tank, but it can be easily implemented by stretching a water shielding sheet along the bottom and the inner periphery of the side wall.

Hereinafter, the first invention will be described in detail with reference to the drawings.
FIG. 1 is a conceptual diagram showing a cross section and a plane of a tank having a side wall made of a material having strength embedded in the basement of the present invention.
As shown in the cross-sectional view, the main tank is made of concrete with a peripheral side wall, and a table-like unit member is arranged at the bottom in the tank partitioned by the side wall to form a first layer. A flat plate-like unit member made of concrete is arranged on the upper part so as to form a horizontal beam. The horizontal earth pressure applied to the tank is supported by a beam of side walls and concrete flat unit members arranged horizontally. As shown in FIG. 2, the table-like unit member is formed of a flat plate portion in which four square end portions are cut out and a member formed of a cylinder opening in the flat plate portion. The original shape of the flat plate portion is not limited to a square, but may be a shape such as a rectangle or a rhombus that can be arranged in a plane without a gap. The shape of the cylinder is also preferably tapered so that it narrows from the opening toward the tip, and can be stacked in a nested manner. Other shapes such as a rectangular tube are not limited to a cylinder.
The shape of the flat plate-like unit member made of concrete is preferably a shape corresponding to the flat plate portion of the member of the table-like unit member. The material is not limited to concrete but may be made of metal such as stainless steel.
The ceiling member may be any material that covers the hole shown in the plan view of FIG. The size may cover the whole ceiling part, or may cover a small unit member.
The side wall may be made of concrete or a metal such as a sheet pile or a steel plate as long as it is made of a material that can provide sufficient strength. Further, the side wall portion may be configured by combining members without being configured integrally.

In FIG. 1, the table-like unit member layer and the plate-like unit member layer are each five layers, but the number of each layer can be changed according to the capacity of the tank and the required strength.
In this figure, the tank is an infiltration tank, the bottom is a roadbed, and table-like unit members are arranged thereon.
In the case of a tank intended for storage, a water-impervious sheet is disposed along the inner wall of the bottom of the bottom of the concrete foundation or the tank.

FIG. 2 shows a state where the table-like unit members and the flat plate-like unit members are arranged. The figure shows a state in which the table-like unit members are arranged by abutting the cylindrical portions, and a flat plate-like unit member having the same shape as the flat plate portion of the table-like unit member is arranged thereon. Not only for the purpose of storage or permeation, each flat plate portion and flat plate unit member can be provided with through holes or appropriately so that the flow of water does not stagnate. For the convenience of attaching the tube portions together, it is also possible to appropriately provide a male / female joint for engagement on the tube portion. Further, if necessary, in order to smoothly flow water into and out of the cylindrical portion, a through hole in a range that does not impair the strength can be provided at the joint with the cylindrical end portion or the flat portion.

The shape of the flat plate portion of the table-like unit member and the shape of the flat plate unit member are preferably the same in terms of construction arrangement, but if the core positions correspond and each end is cut away, the shape Need not be identical. The incision may be such that water stored for the purpose of storage or infiltration can freely flow into the tank.

Further, as shown in FIG. 3, it is possible to appropriately provide a management or inspection passage in the tank.

The material of the table-like unit member may be made of thermoplastic, concrete, or metal. Any material that is stable in contact with water and has the required strength may be used.
The material of the flat unit member may be any material such as metal, concrete, or the like that has the strength to support the horizontal strength together with the side wall as a beam.
The side wall may be made of concrete, a steel plate or the like or a material having a required strength, and may be a material that is molded in the factory by assembling concrete on site.

Hereinafter, the second invention will be described with reference to the drawings.
FIG. 4 is a conceptual diagram showing the second invention. As shown in the figure, an array member having a plurality of flat plate portions arranged in a cylinder is arranged in a tank, and when arranged, the flat plate portions provided at each predetermined position are vertically arranged so as to form a horizontal beam. Has been placed. The flat plate portion is square and its end is notched so that water can flow inside. Each flat plate portion is arranged horizontally, forms a horizontal beam, and supports horizontal earth pressure applied to the tank together with the tank side wall.
Similar to the first invention, the water shielding sheet for the purpose of storage is disposed on the inner surface and the bottom surface of the tank wall.
FIG. 5 is a conceptual diagram showing an example of an array member that forms a shape including one or more flat plate portions having notches at the end portions arranged in the main tank and a cylinder penetrating the flat plate portion. In the figure, four cross-shaped plates are fixed to the cylinder. FIG. 6 shows the configuration of the arrangement member shown in FIG. In the figure, a is a planar cross section of the cylinder, b is a side cross section, and c is a flat plate portion. In the figure, vertical grooves are provided at positions symmetrical to the outer surface of the cylinder. A horizontal groove is cut in the middle of the longitudinal groove so that the flat plate can be fixed by rotating the flat plate portion in the horizontal direction along the axis of the cylinder. The flat plate portion is provided with a protruding portion that engages with the vertical groove provided in the cylinder, and the flat plate portion moves from top to bottom along the vertical groove and is rotated along a horizontal groove provided in the middle of the vertical groove. Fix it. The array members are arrayed so that the flat plate portions meet the convex portions. By setting the width of the horizontal groove to twice the thickness of the flat plate portion, the flat plate portions are arranged without interfering with each other. Even if there is only one longitudinal groove, the flat plate portion may have a corresponding shape.

FIG. 7 shows a member constituting another arrangement member and a state in which the arrangement member is arranged.
As shown in the figure, an arrangement member is shown in which cross-shaped flat plate portions are provided at both ends of a cylinder. It is the same as the above that the array members are arrayed so that the flat plate portions meet the convex portions.

FIG. 8 shows a member constituting an arrangement member different from the above and a state in which the arrangement member is arranged.
As shown in the figure, the array member is provided with a cross-shaped flat plate portion at the center of the cylinder. It is the same as the above that the array members are arrayed so that the flat plate portions meet the convex portions.

The arrangement | sequence member can provide the engagement part as shown in FIG. 9 so that it can engage in the orthogonal | vertical direction as needed. The same applies to the array members shown in FIGS. 2, 5, and 7.

The array member is arrayed in the side wall in the same manner as in the first invention, and the hole formed by the flat plate portion notch of the array member is covered with a ceiling member to form a tank. Alternatively, after arranging the arrangement members, side walls may be provided around the arrangement members, and the same applies to the first invention. As shown in the first invention, the shape of the flat plate portion, the shape of the cylindrical portion, the material of these members, and the like can be appropriately selected as necessary. The management passage shown in FIG. 3 can be similarly installed. In any invention, the side wall may be formed of a concrete cylinder such as a box culvert.

The conceptual diagram of this 1st invention is shown. It is a conceptual diagram which shows the arrangement | sequence state of the unit members used for this 1st invention. The other conceptual diagram in this 1st invention is shown. It is a conceptual diagram which shows an example of this 2nd invention. The conceptual diagram which shows the arrangement | sequence of the arrangement | sequence member used for this 2nd invention is shown. It is a figure which shows the structure of the arrangement | sequence member of FIG. It is a figure which shows the member and arrangement state which comprise an arrangement | sequence member. It is a figure which shows the other member which comprises an arrangement | sequence member, and an arrangement | sequence state. It is a conceptual diagram which shows the engagement part of an arrangement member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tank 2 Table-shaped unit member 3 Flat plate-shaped unit member 4 Flat plate part 5 Ceiling member 6 Side wall 7 Passage 8 Arrangement member 9 Member 10 which comprises an arrangement member Vertical groove 11 Horizontal groove 12 Engagement part

Claims (2)

A tank embedded in the basement, the tank having a side wall portion made of a material having strength, a flat plate having a notch at the end, and a table-like unit member that is open and protrudes from the flat plate, The flat unit member is formed of a flat plate-like unit member having a notched end portion and a ceiling member, and a layer in which the table-like unit members are arranged inside the side wall portion is formed, and the planar unit member is placed on the table-like unit member layer. Forming a beam portion horizontally supported by a table-like unit member, supporting horizontal earth pressure applied to the side wall by the beam portion, and covering the hole formed in the layer and the beam portion with a ceiling member. A tank having a side wall made of a material having a characteristic strength. A tank embedded in the basement, the tank comprising a side wall portion made of a material having strength, a flat plate portion having one or more strengths having a notch at an end, and a cylinder penetrating the flat plate And the ceiling member, and the array member is arranged on the inner side of the side wall so that the flat plate portion forms a horizontal beam, and the hole generated by the arrangement of the array member is covered with the ceiling member. A tank having a side wall made of a material having strength.

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