JPH03124593A - Panel assembly type water supply tank - Google Patents

Abstract

PURPOSE:To contrive the facilitation of installation and maintenance operations by a method wherein a frame is provided for the bottom part of a water supply concrete tank having a manhole, a panel assembly water supply tank is fabricated thereon and an inspection hole having a blind cover in communication with a space under floor is provide on its bottom. CONSTITUTION:A bottom part 15 is fabricated by a method wherein unit panels 3 including an inspection unit panel 10 having a blind cover 12 are fastened together with bolts 17 and nuts 18 via packings 13 with the vertical joint edges 3c of the adjoining panels facing downwardly on the steel made flat frame 7 provided horizontally in the form of a grille on a base 6 for the bottom of a water supply concrete tank 1 having a manhole. A long-size angle member 5 is provided at each end of the bottom part 15 with the one side thereof fastened to a vertical joint edge 3c of the unit panels and the other side thereof fastened to a vertical joint edge 3 of unit panels 3. A first stage side wall 16 is fabricated by fastening together the vertical joint edges 3c of the adjoining unit panels 3 in coplanar relation and by fastening together the inclined joint edges 3b at the corner. By this method, side walls 16 and a ceiling 24 are fabricated.

Description

[Detailed Description of the Invention] [Prior Art] Conventionally, many water tanks installed in buildings are concrete water tanks that use the floor or wall of the building as a part of the tank.

However, concrete water supply tanks have had the problem of cracks occurring on the inside of the tank due to fluctuations during earthquakes, temperature changes, etc., and contaminated groundwater entering the tank through the cracks.

In order to solve the above-mentioned problems, repairs have been carried out by forming a lining layer on the inner surface of the tank using mortar, corrosion-resistant synthetic resin, etc., as shown in FIG. 9.

[Problem to be solved by the invention]

However, the method of forming the above-mentioned lining layer includes
It has the following drawbacks:

1) In order to repair cracks with mortar, it is necessary to roughen the mortar, which causes dust to fly up in the narrow tank, and when repaired with synthetic resin, the narrow tank is filled with solvent, making work difficult. , which has an adverse effect on the human body and requires a long time to construct.

2) Pinholes are likely to occur in the lining layer, resulting in lack of reliability.

3) It is not possible to check the water sealing properties after the lining layer is formed.Especially after repairs, there is no way to check for infiltration of sewage from the outside or leakage of stored water to the outside.

4) Irregularities tend to form on the surface of the lining layer, and foreign matter and dirt accumulate in these areas, resulting in unsanitary conditions.

The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a panel-assembled water tank that provides a good working environment, can be easily installed, and can be easily maintained after the start of use and during use. The purpose is to

[Means to solve the problem]

The structure of the present invention for achieving the above object will be explained using FIGS. 1 to 8 corresponding to the embodiments.
A pedestal is installed on the bottom wall of a concrete water supply tank with a manhole, and a plurality of unit panels each having a joint edge on the periphery of a rectangular pressure-receiving surface are connected to the bottom wall, side wall, and manhole. A technical measure is taken in which a panel-assembled water supply tank is formed by providing a ceiling wall with a ceiling wall, and an inspection hole with a sliding lid is provided in the bottom wall of the tank and communicates with the underfloor space below the bottom wall. In addition, the present invention provides a pedestal on the bottom wall of a concrete water supply tank having a manhole, and connects a plurality of unit panels each having a joint edge on the periphery of a rectangular pressure-receiving surface on the pedestal. A panel-assembled water supply tank is formed by providing walls, side walls, and a ceiling wall with a manhole, and technical measures are taken to provide an inspection hole that extends from the manhole of the tank to the bottom wall and communicates with the underfloor space below the bottom wall. .

[Effect]

According to the above-mentioned means, the present invention allows a person to enter the underfloor space provided on the back side of the bottom wall of the panel assembly type water supply tank through the inspection hole or the inspection passage, so that bolts can be removed during the assembly work of unit panels forming the bottom wall. It is easy to check not only the tightening but also the water sealing property, and even if water leaks, it is easy to prevent water leakage by retightening the bolts from the back of the bottom wall if it is on the bottom wall or from inside the room if it is on the side wall. Can be done.

[Example] An example of the present invention will be described below based on FIGS. 1 to 8.

1 is a concrete water supply tank buried entirely underground;
The side walls 1as, the floor 1b, and the ceiling 1c are all formed below the ground surface, and the ceiling IC is provided with a manhole for people to enter and exit.

2 is a panel-assembled water tank installed inside the concrete water tank l. That is, 6 is a steel pedestal fixed to the four peripheries of one floor of a concrete water supply tank,
On the pedestal 6, a plurality of steel flat pedestals 7, each having a cross-section of a square shape or a straight-line shape, are arranged at equal intervals in a lattice pattern. In addition, the space 19 formed between the concrete water supply tank 1 floor tb and the top surface of the steel flat pedestal 7 is 350 m/m to 6 m/m for assembly work, piping connection work, and maintenance work.
3, it is desirable to secure a height of 00 m/m, as shown in FIG. At the same time, the pressure receiving surface 3a is further provided on the periphery of the joint edge 3b.
An upright joining edge 3C having a 90 degree angle is provided, and F-R
-It is a unit panel integrally formed from synthetic resin such as P. 10 is the inclined joint edge 3b and the upright joint edge 3c.
A circular hole 4 through which a person can enter and exit is formed in the pressure receiving surface 3a of the unit panel 3 provided with a cylindrical body having a flange portion 11 at the upper end on the opposite side from the upright joining edge 3c of the chain hole 4. This is a unit panel for inspection in which a backing 14 is interposed on a flange portion 11, and a blind lid 12 is used to detachably fix the flange portion 11.

Reference numeral 20 denotes a drainage unit panel in which a drain port 23 connectable to piping is provided on the pressure receiving surface 3a of the unit panel 3 provided with the inclined joint edge 3b and the upright joint edge 3C.

To assemble the panel-assembled water tank 2 into the concrete water tank 1, first install at least the inspection port unit panel 10 and the drainage unit on the steel flat pedestal 7 installed in parallel and in a grid pattern on the pedestal 6. A plurality of unit panels 3 each including one unit panel 20 are combined so that the upright joint edges 3C are in contact with each other downward, and adjacent upright joint edges 3c, 3c are assembled.
Unit panel 3.10 with backing 13 interposed between them
and 20 are fastened from the back side with bolts 17 and nuts 18 to form the bottom wall 15.Next, in order to assemble the side wall 16 to the upright joint edge 3C of the unit panel around the bottom wall 15, connect the entire circumference upright joint. A long angle member 5 having a cross-sectional shape is fastened to the edge 3C with bolts and nuts so that one side perpendicular to the steel flat pedestal 7 is parallel to the flat frame 7 with an interval therebetween. Then, a unit panel 3 similar to that used for the bottom wall 15 is erected on one side of the long angle member 5 parallel to the steel flat frame 7 with the upright joint edge 3C facing inward via the backing 13. Then, the upright joining edge 3C and the long angle member 5 are fastened with bolts 17 and nuts 1B. Further, the planar connection of adjacent unit panels 3 is made by connecting the upright joining edges 3C13C to each other via the backing 13, and the connection at the corner is by connecting the inclined joining edges 3b and 3b to each other by using the backing 13 using bolts 17 and nuts 18. are fastened to form the first side wall 16 around the bottom wall 14. Also, -
The unit panel 3 is placed on the upper end upright joining edge 3 of the unit panel 3 of the side wall 16 of the step through the backing 13'',
Fasten with bolts 17 and nuts 18, and also fasten the upright joining edges 3C13C of adjacent unit panels 3 together, and the inclined joining edges 3b, 3b through the backing 13 using bolts 17 and nuts 18, Second stage side wall 1
form 6. Then, the manhole unit panel 8 and the unit panel 3 are assembled two-dimensionally above the side wall 16 and fastened using bolts 17 and nuts 18 via the backing 13. 21 is a ladder for descending to the bottom wall.

4 to 8 are cross-sectional views showing other embodiments of the inspection port unit panel of the present invention, and FIG. to F-R-P
The upper opening is covered with a blind lid 12. FIG. 5 shows that flange portions ILII are formed on the upper and lower sides of the cylindrical body to be fixed to the unit body panel 3, and the lower flange portion 11 is attached to the backing 1 around the hole 4 of the unit body panel 3.
It is fixed with bolts and nuts through 4, and the upper opening is covered with a blind lid 12. FIG. 6 shows an upright joining edge 3 on the periphery of the rectangular pressure receiving surface 3a as shown in FIG. 3(b).
A bottom wall is constructed by combining multiple unit panels 3 provided with C.
The hole 4 is provided by removing one of the unit panels 3 of the bottom wall 15, and the unit panels 3.3 around the hole 4 are removed.
．． 3.3 Fix the rectangular cylinder having upper and lower flanges on the surface edge with bolts and nuts, and attach the blind lid 12 of the unit panel 3 using the angle material 5 at the top opening.
It is covered and fixed. Figure 7 is Figure 3 (a)
As shown in FIG.
The bottom wall 15 is formed by combining a plurality of unit panels 3 having upright joining edges 3C, and the unit panels 3 of the bottom wall 15 are combined together.
One of them has a notch hole 4 formed in the pressure receiving surface Φ, and a square cylinder having a flange part of 135 degrees vertically is attached to the four circumferential inclined joint edges 3b of the unit panel 3 in which the hole 4 is formed, and bolts and nuts are attached to the unit panel 3. At the same time, an inclined joint edge 3b is attached to the upper opening.
and a blind 1 of the unit panel 3 having an upright joint edge 3C
It is covered with i12 and fixed. Figure 8 shows the bottom wall 1
A hole 4 is formed in the center of the unit panel 3 having an inclined joint edge 3b and an upright joint edge 3c.
An inverted dish-shaped blind with a flange part 11 on the side! ! 12 and fixed it.

In addition, the connection of the piping 22 of the drainage unit panel 20, the bottom wall 1
5, the connection between the unit panels 3 and 3, the connection between the unit panels of the bottom wall 15 and the unit panels of the side wall 16, and maintenance and inspection can be easily carried out by an operator who enters through the inspection unit panel 3.

The panel assembly type water supply tank of the present invention is provided with an inclined joint edge having an angle of 135 degrees with the pressure receiving surface on the periphery of the rectangular pressure receiving surface, an upright joint edge provided on the inclined joint edge, and made of synthetic resin such as FRP. It is composed of only one type of unit panel 3 that is integrally formed, and has the advantage of being mass-producible and inexpensive because it does not require special-shaped connectors or special-shaped unit panels. .

Further, since the side wall according to the present invention has the upright joint edge facing inward, it has the advantage that the side wall can be assembled closely to the side wall of the concrete water tank, and a large amount of water can be stored. .

FIG. 2 shows another embodiment of the present invention, and the difference from the embodiment shown in FIG. The flange surface 11 of the cylinder end and the ceiling 24 are fixed with bolts 17 and nuts 18 via the backing 14, and an inspection passage 25 leading from the ceiling 24 to the underfloor space 19 is provided.

Inside the inspection passage 25, there is a ladder 21 that penetrates along the axial direction from the floor surface lb of the concrete water supply tank 1 to the manhole 8 above the ceiling 24 of the panel assembly type water supply tank 2.
It has been established. Further, a submersible pump 9 for pumping water is provided on the bottom wall 15.

With the above structure, even when the panel-assembled water tank 2 is full of water, a person can enter the bottom wall 15 and the under-floor space 19 of the floor 1b of the concrete water tank 1, allowing for water-tightness confirmation and maintenance inspection. This has the advantage that it can be easily manufactured.

〔Effect of the invention〕

Therefore, since the present invention has the above configuration, it has the following effects.

1) Since the panel-assembled water tank is formed inside the concrete water tank, the work environment is good, there is no negative impact on the human body, and the construction period can be shortened.

2) The bottom wall of the panel-assembled water tank is equipped with an inspection hole with a sliding lid that communicates with the underfloor space below the bottom wall, so even if water leaks, a person can enter through the inspection hole and prevent the water from leaking. The location can be detected early and repairs can be made easily.

3) By providing an inspection passageway that extends from the manhole of the panel-assembled water tank to the bottom wall and communicates with the underfloor space below the bottom wall, even if water leaks, people can easily access the inspection passageway without draining the stored water. water leakage points can be detected early and repairs can be made easily.

[Brief explanation of the drawing]

1 and 2 are cross-sectional views showing embodiments of the present invention, and FIG.
Figures (a) and (b) are cross-sectional views showing unit panels;
8 are sectional views showing other embodiments of the inspection port shown in FIG. 1, and FIG. 9 is a sectional view showing a conventional embodiment. Explanation of symbols 1 Concrete water tank 2 Panel assembly type water tank 3 Unit panel 4 Hole 5 Angle material 611 pedestal Steel flat mount Manhole unit panel Unit panel for submersible pump inspection port Flange backing Bottom wall bolt Underfloor space drainage Unit panel 21 Drain pipe 23 Ceiling 25 Pressure receiving surface 3b Upright joint edge Blind lid backing Side wall Nut Ladder Drain inspection passage Slanted joint edge/- (A) Figure Figure Figure 6 Figure 8 Figure

Claims (1)

[Claims] 1. A pedestal is provided on the bottom wall of a concrete water supply tank having a manhole, and a plurality of unit panels each having a joint edge provided on the periphery of a rectangular pressure-receiving surface are connected to each other on the pedestal. A panel-assembled water supply tank is formed by providing a bottom wall, a side wall, and a ceiling wall having a manhole, and an inspection hole with a blind cover is provided in the bottom wall of the tank that communicates with the underfloor space below the bottom wall. Features: Panel assembly type water supply tank 2, a pedestal is installed on the bottom wall of the concrete water supply tank with a manhole, and a plurality of unit panels with a joint edge provided on the periphery of the rectangular pressure-receiving surface are placed on the pedestal. A panel-assembled water supply tank is formed by connecting a bottom wall, a side wall, and a ceiling wall with a manhole, and an inspection passage is provided that extends from the manhole of the tank to the bottom wall and communicates with the underfloor space below the bottom wall. A panel-assembled water tank featuring: 3. The panel assembly type water supply tank according to claim 2, wherein the inspection passage is formed of synthetic resin or metal into a cylindrical or square tube shape. 4. The panel-assembled water tank according to claim 2 or 3, wherein the inspection passage is provided with a ladder inside. 5. The panel assembly type water supply tank according to claim 1 or 2, wherein the side walls forming the panel assembly type water supply tank are formed by connecting unit panels with their connecting edges facing inward.