JPH10140628A - Multi-purpose pre-fabricated underground water storage tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To utilize an underground water storage tank for storage of disaster preventing water or easy toilet by partitioning the underground water storage tank into a rainwater inflow storage tank, a disaster preventing water storage tank, and a rainwater inflow suppressing tank, arranging a soil-water mixture inflow pipe in the rainwater inflow storage tank, and arranging a waste water and sewage pump in the rainwater inflow suppressing tank. SOLUTION: An underground water storage tank 1 formed of a corrugated pipe is partitioned into a rainwater inflow storage tank 2, a disaster preventing water storage tank 3, and a rainwater inflow suppressing tank (easy toilet) 4 in disaster by partitioning walls 5, 6 made of concrete or pre-fabricated steel, and the front end opening part 7 and rear end opening part 8 of the underground water storage tank 1 are blocked. A soil-water mixture inflow pipe 11 is arranged in the rainwater inflow storage tank 2, and a waste water and sewage pump 10 is arranged in the rainwater inflow suppressing tank 4. Thus, soil-water mixture can be introduced into one underground water storage tank 1 to take a supernatant water separated from the introduced soil-water mixed sewage, and the residual sewage can be discharged out of the water storage tank by a privy or by suction of a pump.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multipurpose prefabricated underground water storage tank for multipurpose use of a cylindrical underground water storage tank composed of a corrugated pipe, a concrete prefabricated type, a steel pipe prefabricated type, etc., and assembled with bolts. .

[0002]

2. Description of the Related Art A conventional drainage storage tank is used in a single water tank or a sewage tank. However, many water tanks, which are used as underground water tanks, cannot be installed technically due to their location.

[0003]

DISCLOSURE OF THE INVENTION The present invention introduces a mixed liquid of sediment and sewage into one underground water storage tank comprising a corrugated pipe circular type, a concrete prefabricated type, a steel tube prefabricated type, and the like, and separates from the introduced sediment mixed sewage. It is an object of the present invention to provide an underground water storage tank that can take out clear clear upper water and suction remaining wastewater with a pump-type toilet or a pump to discharge the water outside the water storage tank.

[0004]

Means for Solving the Problems In the underground water storage tank 1, the rainwater inflow storage tank 2, the disaster prevention water storage tank 3, and the rainwater inflow suppression tank 4 are partitioned by partitions 5 and 6, and the front opening of the underground water storage tank 1 is opened. 7 and the rear end opening 8 are respectively closed, a sediment-water mixed liquid inflow pipe 11 is provided in the rainwater inflow storage tank 2, and a sewage filth pump 10 is provided in the rainwater inflow suppression tank 4. The above problem was solved by a tank.

[0005]

DETAILED DESCRIPTION OF THE INVENTION The present invention has a diameter of, for example, 2,500 m.
m, a corrugated pipe with a length of 27,700 mm, etc., divided into three chambers in the length direction, and a rainwater inflow reservoir 2, a disaster prevention reservoir 3, a disaster prevention reservoir 3, and a partition wall made of concrete, prefabricated steel, etc. It is divided into rainwater inflow control tanks (simple toilets) 4 and so on. Suitable places for installation are evacuation sites at the time of disaster, such as schools, evacuation parks, and multipurpose plazas. As the underground water storage tanks, concrete groundwater tanks, steel cylindrical welded groundwater tanks, reinforced plastic groundwater tanks, etc. Can be used. For the partition wall, a wall material made of concrete and having a thickness of about 300 mm is used. In addition to the wall material, a steel assembled wall, a welded steel wall, a reinforced plastic wall, and the like can be used.

[0006] After the water tank is installed, the school building,
Rainwater flowing down from a gymnasium or the like is stored in the water tank.
In addition, tap water can be stored in the water tank. In the event of a disaster, a simple assemblable toilet can be installed on the mounting pipe above the water tank and used as a shared toilet. If the disaster recovery work of the public facilities is completed and completed, the toilet in the water tank can be renovated and operated as a flush toilet. In case of emergency, it is used as a pump-type toilet. The pump for use as a flush type toilet is usually a regulated drainage pump for the rainwater inflow suppression tank described above,
Alternatively, water can be sprayed on a school ground or the like, or discharged to a public rainwater pipe.

The underground water storage tank of the present invention introduces rainwater flowing from the outside into a sediment inflow prevention tank, sediments sediment, and stores supernatant water in the next disaster prevention water storage tank. In the event of a disaster, it is used as disaster prevention water, and during rainfall, the water that has flowed into the disaster prevention water storage tank overflows and is temporarily stored in the rainwater inflow control tank in the next room. The stored water is used for spraying water to school yards or the like by a pump facility in fine weather, or as a reservoir for suppressing inflow to the sewer pipe during concentrated rainwater discharged to a public rainwater pipe.

[0008] Next, in order to use as a simple toilet in the event of a disaster, the above-mentioned simple toilet is a prefabricated tent type toilet with a built-in prefabricated structure for disaster storage and a tent type with a diameter of about 1600 mm for disabled people. A toilet with a pipe assembly structure will be installed, and an assemblable toilet seat will be installed. At the beginning of the disaster, the water in the disaster prevention water tank will be used for fire fighting activities, and the rainwater suppression water tank will be used as a simple toilet. In addition, when the clean water and sewage are depleted and the power is interrupted, it can be used as a pump-type toilet. In addition, when the public facilities are restored, the waste is pumped to the sewer as a flush type.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. A) Underground water storage tank 11 composed of a circular corrugated pipe type, concrete prefabricated type, steel prefabricated type, etc. 1) Prefabricated steel plate prefabricated underground water storage tank. (Corrugated pipe circular type) 1 uses a corrugated pipe circular shape used as a drainage pipe for civil engineering work. 2) Assemble the circular corrugated pipe with special bolts suitable for corrugations. The underground water storage tank 1 is filled with a watertight special packing at the time of assembling each steel plate, and the bolt portion is filled with a watertight special sealing material. 3) The concrete walls of the partitions 5 and 6 are concrete-type walls (tentative name) and are molded in a corrugated circular frame with a thickness of 300 mm at the factory. The concrete walls of the partitions 5 and 6 are to be discharged to the next room. The connecting pipes 14 and 15 are mounted in advance. 4) Cast a bottom concrete 12 for cleaning the inside of the pipe bottom on the circular bottom for a corrugated shape. 5) In the upper part of the circle, a manhole 13 for inspection in each room according to the purpose, a mounting pipe for pump fire extinguishing at the time of disaster, a pipe for dropping a simple toilet, a mounting pipe for rainwater discharge (for watering), for checking a submersible pump Welding various mounting pipes such as.

B) Sediment inflow prevention tank 2 1) Used as a temporary storage tank for rainwater from an adjacent building. 2) Install a simple infiltration basin separately from the corrugated water tank to prevent soil and sand from flowing into the water tank 2. The sediment that has settled in the pipes is regularly inspected and carried out. 3) The bottom concrete 12 is cast on the inner bottom wall to make cleaning in the pipe easier. 4) The supernatant water is discharged by connecting pipes 14 and 15 to the next chamber.

C) Disaster Prevention Water Storage Tank 3 1) As a disaster prevention water and a disaster prevention water, a water storage amount stipulated by laws and regulations of local governments is always stored. 2) If the rainwater that has flowed in during rainfall overflows, discharge it to the rainwater inflow suppression tank 4 in the next room.

D) Rainwater Inflow Suppression Tank 4 Above-ground portion 9 of simple toilet cistern 4 is provided so as to be exposed above ground portion of underground cistern 1. The simple toilet water storage tank 4 is separated from other divisions by a partition 6, a ribbed spigot 8, and a corrugated pipe of the underground water storage tank 1. When the water supply, sewerage, and power supply are interrupted, use the toilet as a pumping toilet. When the public facilities are restored, use the flushing toilet. To release.

Next, other parts of the underground water storage tank 1, that is, parts other than the simple toilet water storage tank 4 will be described in detail. That is, in order to retain the water level of the ribbed end plate 7,
The inflow pipe 11 is connected to a front wall of the rainwater inflow storage tank 2, that is, an upper end of the end plate 7 with ribs. In addition, bottom concrete 12 is cast on the inner bottom of the rainwater inflow storage tank 2 and the water storage tank 4 to facilitate cleaning of the inside of the pipe. 13 is a manhole of the rainwater inflow tank 2 and 14 and 15 are partitions 5
This is a continuous pipe for discharge to the next room.
Sediment that has settled in the underground water storage tank 1 is regularly inspected and carried out. The holes of the connecting pipes 14 and 15 for discharge to the next chamber are opened at the upper part of the partitions 5 and 6, so that the rainwater stored in the rainwater inflow tank 2 at the time of rainfall is supplied to a permanent submersible pump (Fig. (Not shown) to discharge to rivers, rainwater sewers, etc. An automatic discharge switch device is set for this submersible pump. Further, when the underground water storage tank 1 is installed under the school yard in fine weather, it can be used for watering the school yard.

[0014]

Since the present invention is constructed as described above, the sediment mixed in the rainwater is filtered in the rainwater inflow storage tank 2 and then stored in the disaster prevention water storage tank 3.
A seat tent 18 for a simple toilet is set up on the above-ground part of the rainwater inflow control tank 4 and can be set using one that does not occupy a storage space for disasters. Can be retained.
In the early stage of the disaster, the toilet is used as a simple toilet 17 of a pumping type, and when the disaster of a public facility is restored, it is switched to a flushing type, and the number of users of the toilet can be increased by using a vacuum pump.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view of an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a plan view of a simple toilet seat tent.

FIG. 5 is a front view of a seat tent for a simple toilet.

FIG. 6 is a plan view in which a seat tent for a simple toilet and a toilet are assembled.

FIG. 7 is a plan view of another embodiment in which a seat tent for a simple toilet and a toilet are assembled.

[Explanation of symbols]

1 Corrugated pipe circular type, concrete prefabricated type,
Underground water tank consisting of steel pipe prefabricated type etc. 2 Rainwater inflow water tank 3 Disaster prevention water tank 4 Water tank for simple toilet (rainwater inflow control tank) 5, 6 Partition 7, 8 Ribbed wedge plate 9 Above ground part of simple toilet 10 Underwater sewage filth Pump 11 Sediment-water mixed liquid inflow pipe 12 Bottom concrete 13 Manhole of rainwater inflow storage tank 14, 15 Connecting pipe for discharge to secondary room 16 Inspection manhole 17 Simple toilet 18 Seat tent for simple toilet 19 Tailway

Claims (3)

[Claims] 1. A rainwater inflow storage tank 2, a disaster prevention water storage tank 3, and a rainwater inflow suppression tank 4 are partitioned by partitions 5 and 6 in an underground water storage tank 1, and a front end opening 7 and a rear end opening 8 are separated. A multipurpose prefabricated underground water storage tank in which each is closed and the soil-water mixed liquid inflow pipe 11 is disposed in the rainwater inflow storage tank 2 and the sewage filth pump 10 is disposed in the rainwater inflow suppression tank 4. 2. The multipurpose prefabricated underground water storage tank according to claim 1, which is installed as an underground water storage tank under a disaster evacuation site such as a school, an evacuation park, or a multipurpose open space. 3. A water tank for a simple toilet (rainwater inflow control tank)
The multipurpose prefabricated underground water storage tank according to claim 1 or 2, wherein a ground part (9) of the simple toilet is installed above the part (4).