JP2749236B2 - Reservoir equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retarding pond device for temporarily storing a large amount of rainwater concentrated in a heavy rainfall.

[0002]

2. Description of the Related Art Recently, a retarding pond has been placed underground, and its upper surface has been used as an artificial base.

In this case, it is considered that a precast type box culvert is provided in parallel to facilitate on-site construction. For example, as described in Japanese Utility Model Publication No. 2-34306, a plurality of box culverts are provided. There is known a structure in which a bottom plate is formed with cast-in-place concrete at the bottom between the box culverts, and a lid plate is bridged over the space between the box culverts.

[0004]

However, in the retarding pond device having the above-described structure, each box culvert is considerably heavy and bulky, so that it is difficult to carry out work such as transportation on site, and labor costs and other labor costs are reduced. In addition to the bulk, there is a problem that it is necessary to secure a vast material storage area for storing the box culvert near the site.

[0005] Further, since each box culvert has side walls on both sides thereof, the inside of the retarding basin is obstructed by the side walls, so that the visibility becomes poor and maintenance / inspection becomes difficult. I have.

Further, when the capacity of the reservoir is large, a cleaning operation for collecting and removing dust and mud by entering a backhoe or a truck into the reservoir is performed.
The retarding pond device having the above structure has a problem that the cleaning work becomes difficult because the truck or the like can only go straight in the vertical or horizontal direction in the space between the box culverts and between the box culverts.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and reduces the work cost at the site, facilitates maintenance and inspection after installation, and allows a truck or the like to enter freely in a vertical and horizontal direction. It is an object of the present invention to provide a retarding pond device that can be easily performed.

[0008]

The retarding pond device of the present invention comprises:
A plurality of pillars with a bottom plate projecting from the bottom are juxtaposed in the front-rear and left-right directions, and a bottom plate is provided between the bottom plates of the pillars,
A beam is bridged between the upper surfaces of the pillars, and a lid plate is bridged between the upper surfaces of the beams.

[0009]

According to the present invention, a plurality of pillars having a bottom plate projecting from the bottom are arranged side by side in the front-rear and left-right directions, and a bottom plate is provided between the bottom plates of the pillars. By bridging the beam between the upper surfaces, each member is reduced in size,
Operation costs such as on-site transportation work are reduced,
Since no walls are provided, the visibility inside the retarding basin is good, maintenance and inspection after installation are easy, and trucks and the like can freely enter the space between the pillars, making cleaning work easy.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a retarding pond device according to the present invention.

In FIG. 1 to FIG. 4, reference numeral 1 denotes an intermediate column disposed at an intermediate portion serving as a site of a retarding pond.
The intermediate rod 1 is formed integrally with concrete by embedding a steel rod and a reinforcing bar, and a substantially square bottom plate 3 is formed integrally at the bottom of the column main body 2 so as to protrude all over the outside. The upper part is slightly enlarged upward to form a base 4. The upper surface of the pedestal 4 is formed in a substantially square shape, and further, as shown in FIG.
A PC steel bar 5 projects upward from the upper surface of the steel bar .

In FIGS. 1 to 3 and 5, reference numeral 6 denotes an end column disposed at the end of the site, and the end column 6 has a substantially L-shaped cross section and has one end on the bottom. Has a bottom plate 7
Are vertically and integrally protruded outward.

1 to 3 and 6, reference numeral 8 denotes a beam bridged between the upper surfaces of the pedestals 4 of the intermediate column 1, and this beam 8 has an edge on both sides. Protrusions 9 and 9 are respectively provided along the portions, and extending portions 10 and 10 connected to the upper surface of the base 4 of the intermediate column 1 at both ends.
Are protruded from each other. In addition, the extension at both ends
10 and 10 have Ps protruding from the base 4 of the intermediate column 1.
Insertion holes 11 into which the C steel bars 5 are inserted are provided. The beam 8 is also used for bridging between the upper surface of the base 4 of the intermediate column 1 and the end column 6.

1 to 3, reference numeral 12 denotes a cover plate bridged between the upper surfaces of the beams 8.

[0015] Incidentally, said end pillar 6, Haritai 8 and cover plate 12 are formed by PC steel bars and rebars are embedded respectively concrete.

13 is formed between the bottom plate 3 of the intermediate column 1 and between the bottom plate 3 and the bottom plate 7 of the end column 6 by in-situ concrete casting or precast slab. Bottom plate.

Next, this embodiment will be described.

First, as shown in FIG. 1, an end column 6 is disposed at the periphery of a site serving as a retarding basin, that is, at an end so that the bottom plate 7 is located inward. The bodies 6 are joined one by one to form the outer wall 14 and the perimeter of the site is closed. At this time, the connection between the adjacent end pillars 6 is performed by bolts and bolts .
And then Tightened at such as PC steel, carried out by binding.

An inlet and an outlet (not shown) for rainwater and the like are formed at appropriate positions on the outer wall portion 14, respectively.

In parallel with or after the formation of the outer wall 14, a plurality of intermediate pillars 1 are placed in the middle of the site located inside the outer wall 14 in the front-rear and left-right directions. They are arranged at predetermined regular intervals, that is, arranged like a grid, and fixed and fixed in parallel with each other. At this time, it arrange | positions so that the direction of the peripheral part of the substantially square-shaped base part 4 of the intermediate | middle part pillar body 1 which adjoins front, back, left and right may mutually correspond.

Next, the bottom plate 13 is formed between the bottom plate 3 of the intermediate column 1 and between the bottom plate 3 and the bottom plate 7 of the end column 6 by in-situ concrete casting or precast slab.
To form

Next, between the upper surface of the base 4 of the adjacent intermediate column 1 and the base 4 and the end column 6 of the adjacent intermediate column 1
A beam 8 is bridged between the upper surfaces of the beams. At this time, as shown in FIG. 7, the extending portions 10 of the four beam members 8 are respectively arranged on the upper surface of each intermediate portion column member 1, and the column 1 is inserted into the insertion holes 11 of the extending portions 10. The PC steel bar 5 protruding from the upper surface is inserted and fastened, and the concave portion 16 surrounded by the four extending portions 10 is filled with mortar, and each of the extending portions 10 and the intermediate portion column 1 Join the upper surface of.

Next, the lid plate 12 is sequentially placed and fixed between the upper surfaces of the beams 8.

In this state, a circulation portion 17 is formed between the intermediate pillars 1 arranged side by side in the front-rear and left-right directions to form a retarding pond space. Then, water such as rainwater that has flowed in from the inflow port of rainwater or the like is stored in the retarding reservoir space.

A passage 18 having a downward slope from the end to the inside is formed by in-situ concrete casting between the middle column 1 located in the center of the site and the entrance.
A backhoe, a truck (not shown), and the like can directly enter the passage 18 from 18a. And
The passage 18 has a structure in which support walls 19, 19 are erected on the bottom plate 13, and the passage main body 20 is supported by the support walls 19, 19.

In the middle part of the site, only the column body 2 of the middle column 1 is erected, and no side wall is provided.
Maintenance and inspection of the retarding basin equipment becomes easy. Further, the same water storage capacity can be obtained with a smaller site area as compared with the case where box culverts having conventional side walls are juxtaposed.

Further, when the volume of the retarding basin space is large, a backhoe, a truck, or the like is moved from the entrance 18a through the passage 18
After passing through the upper portion, it lands on the bottom plate 13 from the outlet portion 18b, and can freely move in the vertical and horizontal directions on the bottom plate 13 and the bottom plate portion 3 formed between the bottom plates 3 of the intermediate portion column member 1. Deposits such as dirt and mud can be easily collected and removed with a truck or truck.

Further, as described above, since the members such as the intermediate column 1 and the beam 8 are greatly reduced in size as compared with the conventional box culvert, the work such as transportation and installation at the site is performed. This makes it easy to reduce labor costs, such as labor costs, and also makes it possible to install a retarding basin device even when a large material storage area cannot be secured near the site.

Since the projecting edges 9, 9 are formed on the upper portions on both sides of the beam 8, the cover plate 12 is provided on the upper surface of the beam 8.
In this case, a sufficient space for mounting the beam 8 can be obtained, and the size of the entire beam 8 can be further reduced.

In practice, the end pillars 6 are joined to form the outer wall 14, and the middle pillar 1 is attached to the end of the site.
And the end face of the intermediate portion column 1 can be closed with a concrete plate, or the intermediate portion 1 can be closed with an end plate provided integrally therewith.

In the above embodiment, a substantially square bottom plate 3 is formed integrally with the column plate body 2 at the bottom as the intermediate column 1 and a substantially square base 4 is formed at the top. However, the present invention is not limited to this, and the column plate body 2 and the bottom plate portion 3 are formed by separate members, and the column plate body 2
And the bottom plate 3 to form the intermediate column 1, and the intermediate column 1 may be of various shapes.

In the above embodiment, a plurality of intermediate pillars 1 are arranged at regular intervals in a grid pattern, but non-equal intervals may be used.
The intermediate pillars 1 can be arranged so as to form a rectangle, a rhombus, or the like, and depending on the shape near the end of the site, even if the shape between the intermediate pillars 1 is partially changed. Good.

Further, in the above-described embodiment, the end column 6 having a substantially L-shaped cross section has been described.
For example, it can be formed in various shapes such as a structure having a substantially inverted T-shaped cross section.

[0034]

According to the retarding pond device of the present invention, a plurality of pillars having a bottom plate projecting from the bottom are arranged side by side in the front-rear and left-right directions.
By providing a bottom plate between the bottom plates of the pillars, and by bridging the beams between the upper surfaces of the pillars, each member is reduced in size, thereby reducing work costs such as transport work on site, In addition, since there is no wall at all, the visibility inside the retarding basin is good, maintenance and inspection after installation are easy, and trucks can freely enter the space between the pillars, making cleaning work easy. Become.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view showing a retarding pond device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a front view showing the intermediate portion column member.

FIG. 5 is a front view showing the upper end column.

6 (a) is a plan view, and FIG. 6 (b) is a front view of the same beam.

FIG. 7 shows a joint state between the beam body and the intermediate column body,
(a) is a plan view and (b) is a front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Intermediate pillar as pillar 3 Bottom plate 8 Beam 12 Cover plate 13 Bottom plate

Claims (1)

(57) [Claims] A plurality of pillars having a bottom plate projecting from the bottom are arranged side by side in the front-rear and left-right directions, a bottom plate is provided between the bottom plates of the pillars, and a beam is provided between the upper surfaces of the pillars. A retarding pond device comprising a bridge and a lid plate bridged between the upper surfaces of the beams.