JP2014189953A - Emergency water management structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emergency water management structure that requires no maintenance normally, can be easily switched to a disaster mode during disaster, can be easily switched back to a normal mode from the disaster mode, is configured that piping does not easily get damaged and a storage tank does not easily float by disaster, does not easily generate bad odor, and can be easily cleaned and sterilized after disaster.SOLUTION: An emergency water management structure is provided in the vicinity of a building body 22 inside a ground-reinforced region and includes: a first sewage pipe 26 communicating with a plurality of drain pipes 24 into which sewage generated in the building body 22 is discharged; a second sewage pipe 28 of which a distal end communicates with a sewerage system A outside the ground-reinforced region; a pot-shaped underground measure 34 provided underground; a passage switching pipe 30 that connects the first sewage pipe 26 and the second sewage pipe 28 and is housed in the underground measure 34, for discharging sewage into the underground measure 34 during disaster; a sewage storage tank 36 provided underground and having a connection hole 36a opening toward the ground; and a third sewage pipe 38 of which one end opens toward the bottom surface of the underground measure 34 and the other end opens towards the sewage storage tank 36.

Description

  The present invention relates to an emergency water management structure for storing sewage when a sewer is damaged during a disaster.

In the event of an earthquake disaster, even if the building is safe, there may be a problem that the sewer infrastructure is damaged and sewage cannot be discharged into the sewer for a long period of time, and the toilet cannot be used during that time.
In order to solve this problem, a sewage storage tank is buried in the site of the building or in the area of the evacuation waiting area, a manhole is provided in the sewage storage tank, and a temporary toilet is installed above the manhole in an emergency. Countermeasures have been proposed.
However, these temporary toilets are insufficiently protected in privacy, even in an emergency. Temporary toilets were installed only on the first floor, and residents of high-rise apartments had to go to the first floor every time they used the elevator even when the elevator was stopped.

FIG. 1 is an explanatory diagram of the sewage storage structure 4 of Patent Document 1. FIG. (A) is a normal time and (B) is a disaster time.
In order to solve the above-mentioned problems, in Patent Document 1, a building 1 such as a housing complex has a seismic isolation structure, a storage tank 2 is provided in the site of the building 1, and the storage tank is provided via a discharge adjustment means 3. 2 and sewer A are connected. And as shown to FIG. 1 (A), the sewage which generate | occur | produced from the said building 1 at the time of normal is once led to the storage tank 2, and is discharged | emitted from the storage tank 2 to the sewer A. In addition, as shown in FIG. 1B, in an emergency, the discharge adjusting means 3 is shut off so that sewage generated from the building 1 can be temporarily stored in the storage tank 2. Can be used.

JP 2002-180680 A JP 2007-270536 A

  In the sewage storage structure 4 of Patent Document 1 described above, since the sewage is discharged into the sewer A through the storage tank 2 even during normal times, the storage tank 2 needs to be cleaned regularly. Therefore, the sewage storage structure 4 of Patent Document 1 has a problem that regular maintenance is required.

  In the sewage storage structure 4 of Patent Document 1, the building 1 has a fireproof structure and a seismic isolation structure, and the building 1 is protected from the earthquake disaster. However, the site other than the building 1 has a fireproof structure and a seismic isolation structure. It is not. Therefore, when the ground in the site is liquefied due to the earthquake disaster, there is a possibility that the sewage pipe may be damaged or the storage tank 2 itself may be surfaced.

In order to solve the problem, a water treatment system 10 of Patent Document 2 has been proposed.
FIG. 2 is an explanatory diagram of the water treatment system 10 of Patent Document 2. (A) is explanatory drawing of the whole water treatment system 10, (B) is explanatory drawing when the flow-path connection member 13 is a pipe-shaped member, (C) is a screw-type pipe joint with the flow-path connection member 13 It is explanatory drawing at the time.
In patent document 2, the flow path connection member 13 which connects the upstream side piping 11 and the downstream side piping 12 of a sewer pipe, the drainage basin 14 provided under those connection site | parts, the waste_water | drain stored in the drainage basin 14 A pump 15 that pumps up and a purification processing unit 16 that purifies the waste water pumped up from the drainage basin 14 are disclosed.

In Patent Document 2, during normal operation, one end of the flow path connecting member 13 is manually inserted into the distal end 11a of the upstream pipe 11 and the other end is manually inserted and attached to the proximal end 12a of the downstream pipe 12. Waste water is flowing directly into sewer A.
Further, in the event of a disaster, the insertion of the flow path connecting member 13 is canceled manually, or the flow path connecting member 13 is cut or broken to release the communication between the upstream side pipe 11 and the downstream side pipe 12, and drainage is performed. It flows into the drainage basin 14 from the upstream piping 11 and stores.
In Patent Document 2, a pipe-like member having a pipe inner diameter corresponding to the pipe outer diameter of the upstream pipe 11 or the downstream pipe 12 or a screw-type pipe joint is used as the flow path connecting member 13.

  Moreover, in patent document 2, the drainage stored in the drainage basin 14 is pumped up by the pump 15 and purified by the purification processing unit 16 and then reused as toilet water.

  However, the flow path connecting member 13 is a pipe-shaped member or a screw-type pipe joint having a pipe inner diameter corresponding to the pipe outer diameter of the upstream pipe 11 or the downstream pipe 12, and the flow path connecting member 13 is the upstream pipe. 11 is longer than the distance from the distal end 11a of the pipe 11 to the proximal end 12a of the downstream pipe 12, and the upstream pipe 11 and the downstream pipe 12 are pipes arranged on the same line. In order to install or release, one of the flow path connecting member 13, the upstream pipe 11, and the downstream pipe 12 must be bent. Therefore, it was difficult to insert or release the flow path connection member 13.

In Patent Document 2, since the distal end 11a of the upstream pipe 11, the proximal end 12a of the downstream pipe 12, and the connection part of the flow path connecting member 13 are directly provided on the drainage basin 14, If the lid of the drainage basin 14 is opened at normal times, the water storage part 14a of the drainage basin 14 can be directly seen under the channel connection member 13, and care should be taken that parts such as the removed channel connection member 13 do not fall into the water storage part 14a. Was necessary.
Moreover, since it opens directly from the water storage part 14a, even if the lid is closed, the bad smell of the drainage was likely to come out to the surroundings.

Further, after the infrastructure such as the sewer A is restored, it is necessary to discharge the wastewater stored in the drainage basin 14 and clean and sterilize the drainage basin 14.
However, in order to discharge the wastewater stored in the drainage basin 14 of Patent Document 2, the pump 15 is used. However, the pump 15 fixed to the drainage basin 14 could not pump up all the drainage. Further, all the drained water is purified by the purification processing unit 16. Therefore, unnecessary purification treatment is performed on the washing water, and the efficiency is poor. In addition, the surfactant or disinfectant in the cleaning water may adversely affect microorganisms in the biological treatment tank of the purification treatment unit 16.

In addition, when cleaning water is sent from the upper opening of the drainage basin 14 and an attempt is made to suck the stored water from the same upper opening with a vacuum vehicle or the like, a pipe for feeding the cleaning water is inserted from the upper opening to collect the cleaning water in the stored water. Then, it was necessary to pull out the pipe for feeding the cleaning water, put the pipe for sucking into the vacuum car, and suck the stored water several times alternately, and the work efficiency was poor. In addition, since the washing water must be stored and then sucked in, a large amount of washing water is required to wash the drainage basin 14 until it becomes clean.
In addition, since the pipes are alternately put in and out of the upper opening of the drainage basin 14, the upstream side piping 11, the downstream side piping 12, and the flow path connecting member 13 are easily damaged.

In addition, the water treatment system 10 of Patent Document 2 is equipped with facilities such as a drainage basin 14 without providing any disaster measures such as earthquake resistance measures and ground measures. For this reason, there is a possibility that facilities such as the drainage basin 14 cannot be used when the sewer A in the site is damaged together with the infrastructure such as the public sewer A.
In addition, when a liquefaction phenomenon or the like occurs due to a disaster, the drainage basin 14 may be lifted.

  The present invention has been developed to solve the above-described problems. That is, the object of the present invention is that maintenance is not required during normal times, and it is possible to easily switch to the disaster mode in the event of a disaster, and it is possible to easily return to the normal mode from the disaster mode, and a normal toilet can be used even during a disaster. Another object of the present invention is to provide an emergency water management structure in which piping is not damaged by a disaster and a storage tank is unlikely to rise, an odor is hardly generated, and cleaning and disinfection after a disaster are easy.

According to the present invention, provided in the ground strengthening range in the vicinity of the building body built inside the ground strengthening range subjected to the ground strengthening treatment,
A first sewage pipe communicating with a plurality of drain pipes for flowing sewage generated in the building body;
A second sewage pipe whose distal end communicates with a sewer passing outside the ground strengthening range;
A bowl-shaped underground burial provided in the ground,
A path switching pipe that connects the first sewage pipe and the second sewage pipe and is stored in the underground pit and discharges the sewage into the underground pit in the event of a disaster;
A sewage storage tank that has a connection hole embedded in the ground and opened to the ground, and stores the sewage;
There is provided an emergency water management structure comprising: a third sewage pipe having one end opened at a bottom surface of the underground pit and the other end opened at a sewage storage tank.

The path switching pipe has a first opening communicating with and connected to the distal end of the first sewage pipe,
A hollow three-pronged pipe having a second opening communicating with and connected to the proximal end of the second sewage pipe,
Furthermore, the path switching pipe is provided on a wall surface between the first opening and the second opening, and a third opening for communicating the outside of the wall with the hollow,
Opening and closing means connected to the third opening and capable of opening and closing the opening of the third opening,
Normally, the third opening is fixed upward and the opening is closed by an opening / closing means.
In the event of a disaster, the third opening is fixed downward and the opening is opened by the opening / closing means.

  The third opening is also used as a cleaning port for cleaning the first sewage pipe and the second sewage pipe.

  The opening / closing means is an opening lid that closes the third opening.

In addition, the ground strengthening treatment involves rotating a mortar column into the ground by mixing cement milk poured from the tip of the pile core and earth and sand in the ground while rotating around the vertical axis while pressing the rod-shaped pile core into the ground. A deep mixing process to form
The ground strengthening range is a range surrounded by a rectangle with a mortar column formed by overlapping adjacent mortar columns.

In addition, underground pits and sewage storage tanks are buried within the ground reinforcement range,
The first sewage pipe, the second sewage pipe, and the third sewage pipe are piped on the mortar column.

  The sewage storage tank is a reinforced concrete structure consisting of rebar and concrete and uses a mortar column as a foundation.

In addition, an emergency drinking water generating device that generates drinking water obtained by filtering well water pumped up from a well, and surplus water containing impurities formed in the process of generating drinking water,
A water supply pipe for supplying the drinking water to the building body;
Surplus water piping for supplying the surplus water to the building body.

  According to the emergency water management structure of the present invention described above, the path switching pipe is fixed with the third opening facing upward in the normal state, and the opening of the opening / closing means is closed. By simply fixing the route switching pipe and opening the opening with the opening / closing means, the normal mode and the disaster mode of the emergency water management structure are switched, so that the toilet used in normal times can be used in an emergency. Therefore, the privacy of the user can be protected, and it is not necessary for the residents on each floor to go to the first floor every time they use it.

  Further, since the sewage storage tank normally flows from the first sewage pipe to the second sewage pipe via the path switching pipe, the underground burrow, the third sewage pipe, and the sewage storage tank are not normally contaminated. Therefore, maintenance of underground buried dredging, third sewage piping, and sewage storage tank is not required at normal times.

  In addition, the emergency water management structure can be switched from the normal mode to the disaster mode simply by rotating the path switching pipe around the axis of the sewer pipe and switching the third opening from upward to downward. Switching to is easy. Therefore, it is not necessary to bend the first sewage pipe or the second sewage pipe for the rotation of the path switching pipe, and it is not necessary to destroy the path switching pipe.

  Furthermore, since the sewage storage tank of the present invention communicates with the underground burial through the third opening, even if parts are dropped during the switching operation of the path switching pipe, it does not fall into the sewage storage tank. Moreover, since the sewage storage tank leads to the underground burial through the third sewage pipe, the bad odor generated from the sewage in the sewage storage tank is unlikely to rise to the ground.

In addition, since the sewage storage tank is connected to the underground burial through the third opening and has a connection hole, it is easy to clean and disinfect the emergency water management structure after a disaster.
That is, first, the sewage in the sewage storage tank is sucked up by a vacuum car, the inside of the underground burrow and the third sewage pipe leading from the underground burrow are cleaned with high-pressure water, and the washing water is poured into the sewage storage tank. By simply sucking up the cleaning water stored in the sewage storage tank with a vacuum car, the underground pit, the third opening, and the sewage storage tank can be easily cleaned and disinfected at a time.

  Furthermore, since the emergency water management structure of the present invention is provided within the ground reinforcement range, not only the building body but also the emergency water management structure is not easily damaged by a disaster. In addition, since the liquefaction phenomenon is unlikely to occur in the ground within the ground strengthening range, the sewage pipes such as the first sewage pipe, the second sewage pipe, and the third sewage pipe are less likely to be damaged. There is no risk of rising to the ground. Therefore, even if public infrastructure such as sewerage is damaged, the emergency water management structure of the present invention switched to the emergency mode can be used.

It is explanatory drawing of the sewage storage structure of patent document 1. FIG. It is explanatory drawing of the water treatment system of patent document 2. FIG. It is explanatory drawing of the normal structure of the emergency water management structure of this invention. It is expansion explanatory drawing of the underground burial and route switching pipe of this invention. It is explanatory drawing of the ground reinforcement process used by this invention. It is explanatory drawing of the structure of the emergency of the emergency water management structure of this invention. It is explanatory drawing about the washing | cleaning of the emergency water management structure after an emergency.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the common part in each figure, and the overlapping description is abbreviate | omitted.

FIG. 3 is an explanatory diagram of a normal configuration of the emergency water management structure 40 of the present invention. FIG. 4 is an enlarged explanatory view of the underground burrow 34 and the path switching pipe 30 of the present invention.
The emergency water management structure 40 of the present invention is provided close to the building body 22 in the ground reinforcement range 20 subjected to the ground strengthening process, and includes the first wastewater pipe 26, the second wastewater pipe 28, and the third. A sewage pipe having a sewage pipe 38, a path switching pipe 30, an underground burrow 34, and a sewage storage tank 36 are provided.

  The building body 22 is a public facility such as an apartment house, a building, or a school that is built inside the ground strengthening range 20 that has been subjected to ground strengthening processing. The building body 22 has a plurality of drain pipes 24 for flowing sewage generated in the building body 22.

  The sewer pipe has a first sewage pipe 26, a second sewage pipe 28, and a third sewage pipe 38.

The first sewage pipe 26 communicates with a plurality of drain pipes 24 through which sewage generated in the building main body 22 flows, and a distal end opens in the underground buried rod 34.
It is preferable that a flange 26 a for connecting to the first opening 30 a of the path switching pipe 30 is provided at the distal end of the first sewage pipe 26. Further, the connection between the distal end of the first sewage pipe 26 and the first opening 30a of the path switching pipe 30 is preferably fixed with a bolt and a nut, but other means may be used.
The first sewage pipe 26 is preferably provided with a valve 48 for adjusting the flow of sewage.

The second sewage pipe 28 has a proximal end opened in the underground burrow 34 and has a distal end communicating with and connected to the sewer A passing outside the ground reinforcement range 20.
It is preferable that a flange 28 a for connecting to the second opening 30 b of the path switching pipe 30 is provided at the proximal end of the second sewage pipe 28. The connection between the proximal end of the second sewage pipe 28 and the second opening 30b of the path switching pipe 30 is preferably fixed with a bolt and a nut, but other means may be used.

  The path switching pipe 30 connects the first sewage pipe 26 and the second sewage pipe 28 and is stored in the underground burrow 34, and discharges the sewage into the underground burrow 34 in the event of a disaster. The path switching pipe 30 is a three-way pipe having a hollow and includes a first opening 30a, a second opening 30b, a third opening 30c, and an opening / closing means 32. The distance from the first opening 30a to the second opening 30b is preferably equal to the distance from the distal end of the first sewage pipe 26 to the proximal end of the second sewage pipe 28.

  The first opening 30 a is an opening that communicates with and connects to the distal end of the first sewage pipe 26. The first opening 30 a is preferably provided with a flange 30 d for coupling to the flange 26 a at the distal end of the first sewage pipe 26.

  The second opening 30 b is an opening that communicates with and connects to the proximal end of the second sewage pipe 28. It is preferable that the second opening 30b is also provided with a flange 30d for coupling to the flange 28a at the proximal end of the second sewage pipe 28.

  The 3rd opening part 30c is provided in the wall surface between the 1st opening part 30a and the 2nd opening part 30b, and connects the outside of this wall surface and the said hollow. The path switching pipe 30 is normally fixed with the third opening 30c facing upward and closed by the opening / closing means 32, and is fixed with the third opening 30c facing downward and opened by the opening / closing means 32 during a disaster. .

Accordingly, the sewage discharged from the first sewage pipe 26 at the normal time flows to the second sewage pipe 28 through the second opening 30b and is discharged to the sewer A. In an emergency, the third opening 30c is opened by the opening / closing means 32, and sewage is discharged from the third opening 30c into the underground burrow 34.
The third opening 30c is also used as a cleaning port for cleaning the first sewage pipe 26 and the second sewage pipe 28.

  The opening / closing means 32 is connected to the third opening 30c and opens / closes the opening of the third opening 30c. The opening / closing means 32 is preferably an opening lid that closes the third opening 30c, but other methods may be used. The opening lid is preferably a screw type.

The underground buried rod 34 is a bowl-shaped rod and is provided in the ground and accommodates the path switching pipe 30 therein. One end of the third sewage pipe 38 is connected to the bottom surface of the underground burrow 34 and opens into the underground burrow 34.
The bottom surface of the underground burrow 34 is preferably inclined toward the opening at one end of the third opening 30c so that sewage flows through the opening at one end of the third opening 30c.
The underground burrow 34 is provided with a lid such as a manhole. In addition, it is preferable to lock the lid of the underground burrow 34.

  One end of the third sewage pipe 38 opens on the bottom surface of the underground burrow 34 and the other end opens on the sewage storage tank 36. The cross sectional area of the third sewage pipe 38 is preferably smaller than the bottom areas of the sewage storage tank 36 and the underground buried rod 34.

The sewage storage tank 36 is embedded in the ground and stores the sewage. It is preferable that the sewage storage tank 36 has a storage capacity of one month or more.
The sewage storage tank 36 has a connecting hole 36a that opens to the ground. It is preferable that the bottom surface of the sewage storage tank 36 is formed so that the position directly below the connection hole 36a is lowest. Thus, all the sewage in the sewage storage tank 36 can be sucked up by simply lowering the hose of the vacuum wheel directly below the connecting hole 36a and sucking up the sewage.

  The connecting hole 36a is provided with a lid such as a manhole. In addition, it is preferable to lock the lid of the connecting hole 36a such as a manhole. Moreover, it is preferable to take measures against odors such as a scented tube and a vent tube in the sewage storage tank 36.

  The path switching pipe 30, the underground buried rod 34, and the sewage storage tank 36 are provided inside the ground reinforcement range 20. Further, a sewage pipe having a first sewage pipe 26, a second sewage pipe 28, and a third sewage pipe 38 is also provided inside the ground reinforcement range 20.

Moreover, the emergency water management structure 40 of this invention is the emergency drinking water production | generation apparatus 50 which produces | generates drinking water and surplus water, the water supply piping 52 which supplies the said drinking water to the building main body 22, and the surplus water in a building. Surplus water piping 54 to be supplied to the main body 22.
The emergency drinking water generating device 50 of the present invention generates drinking water by filtering the well water pumped up from the well C. Moreover, the emergency drinking water production | generation apparatus 50 produces | generates the water containing the impurity produced in the production | generation process of drinking water as surplus water.

  And from the emergency drinking water production | generation apparatus 50 of the emergency water management structure 40 of this invention, it provided in each floor via the tap water piping 52 for drinking water, and the surplus water piping 54 for surplus water, respectively. Supplied to the faucet. Thereby, the resident can obtain surplus water from the faucet provided on each floor and use it as toilet water without going to the emergency drinking water generating device 50 to collect surplus water. .

FIG. 5 is an explanatory diagram of the ground strengthening process used in the present invention. (A) is explanatory drawing of the deep mixing process of this invention, (B) is explanatory drawing of the ground reinforcement | strengthening range 20. FIG. In FIG. 5A, time elapses from left to right.
As shown in FIG. 5, the ground strengthening process is a deep mixing process. Specifically, the rod-shaped pile core 42 is rotated around the vertical axis 41 while being pressed into the ground and poured out from the tip of the pile core 42. This is a process of forming mortar pillars 44 in the ground by mixing cement milk and earth and sand in the ground.

Specifically, in the ground strengthening treatment of the present invention, first, cement milk is poured into the ground, and the pile core 42 is rotated around the vertical axis 41 to stir and mix the soil and cement milk in the ground. 44 is constructed. And the operation | work which forms the mortar column 44 partially overlapping with the adjacent mortar column 44 is repeated, and the mortar column row | line 46 which the mortar column 44 continued was formed. Thus, by forming the mortar column 44 in the range where the ground is desired to be strengthened, the ground strengthening range 20 can be surrounded by the mortar column array 46 in a rectangular shape.
That is, the ground strengthening range 20 is a range in which the ground is enclosed in a rectangle by a mortar column 46 in which mortar columns 44 adjacent to each other are overlapped.

  As a result, it is possible to stop the groundwater in the range (ground strengthening range 20) enclosed by the mortar column 46 in a rectangular shape and further strengthen the ground in the ground strengthening range 20, so even if the ground shakes greatly due to an earthquake, etc. Groundwater is not fluidized and liquefaction can be prevented.

Moreover, the ground strengthening process of the emergency water management structure 40 of the present invention surrounds the building main body 22 with the mortar column 46 by the deep mixed processing method as shown in FIG. Support.
Furthermore, the sewage storage tank 36 is a reinforced concrete structure composed of reinforcing bars and concrete, and a mortar column array 46 is constructed by a deep mixing treatment method according to the shape of the sewage storage tank 36 to counteract liquefaction of the ground reinforcement range 20. The mortar column 46 is preferably used as the basis of the sewage storage tank 36.

The underground buried rod 34 and the sewage storage tank 36 of the present invention are buried in a rectangular enclosure of the mortar column 46, that is, in the ground reinforcement range 20, and the first sewage pipe 26, the second sewage pipe 28, and The third sewage pipe 38 is preferably piped on the mortar column 46.
Thereby, even in the event of a disaster where the ground outside the ground strengthening range 20 is liquefied, the building main body 22, the sewage storage tank 36, the underground burial 34 and the mortar column 46 in the ground strengthening range 20 Damage to the piped first sewage pipe 26, second sewage pipe 28, and third sewage pipe 38 can be avoided.

Next, the usage method of the emergency water management structure 40 of this invention is demonstrated.
FIG. 6 is an explanatory diagram of an emergency configuration of the emergency water management structure 40 of the present invention.

  As shown in FIG. 3, the drainage of the emergency water management structure 40 of the present invention is normally connected to the public sewer A through the first sewage pipe 26, the path switching pipe 30, and the second sewage pipe 28. At that time, the emergency water management structure 40 of the present invention normally closes the opening / closing means 32 with the third opening 30c facing upward.

Thereby, since it can operate | use without using the sewage storage tank 36 and the 3rd sewage piping 38 at normal time, the maintenance of the sewage storage tank 36 and the 3rd sewage piping 38 is unnecessary at the normal time. Further, since the third opening 30c faces upward, the first sewage pipe 26 and the second sewage pipe 28 can be cleaned from the third opening 30c.
Residents always have water stored in the bathtub from normal times.

  On the other hand, in the emergency water management structure 40 of the present invention, as shown in FIG. 6, in the event of a disaster, the path switching pipe 30 is fixed with the third opening 30c facing downward, and the opening / closing means 32 causes the third opening 30c to be fixed. The opening is opened.

  That is, when the infrastructure such as the public sewer A is shut off at the time of a disaster, the valve 48 installed in the first sewage pipe 26 is first closed, the lid of the underground burrow 34 is opened, and the route around the axis of the sewage pipe The switching tube 30 is rotated and the third opening 30c is directed downward.

  Specifically, a bolt connecting the flange 26 a at the distal end of the first sewage pipe 26 and the flange 30 d installed in the first opening 30 a of the path switching pipe 30, and the proximal of the second sewage pipe 28. The bolt that connects the flange 28a at the end and the flange 30d installed in the second opening 30b of the path switching pipe 30 is removed, the path switching pipe 30 is rotated, the third opening 30c is directed downward, and again the first The distal end of the sewage pipe 26 and the proximal end of the second sewage pipe 28 are connected to the first opening 30a and the second opening 30b by bolts, respectively.

Thereafter, the opening / closing means 32 of the third opening 30c is opened, and the valve 48 is opened again.
Thereby, the sewage discharged | emitted by the building main body 22 is discharged | emitted in the underground burrow 34 from the 3rd opening part 30c. The sewage discharged into the underground burrow 34 passes through the third sewage pipe 38 and is stored in the sewage storage tank 36. Therefore, even if the infrastructure such as the public sewer A is shut off due to a disaster, the sewage can flow into the drain pipe 24 that is normally used.

Moreover, the resident of a housing complex can use the toilet stored in the bathtub as toilet water, so that the toilets used in normal times in each living space can be used in the event of a disaster. Thereby, the privacy of each resident can be protected. In addition, it is not necessary for residents of high-rise apartments to go to the temporary toilet on the first floor every time they use.
In addition, the water used as toilet water may use surplus water by the emergency drinking water generating device 50 in addition to the water stored in the bathtub.

In addition, when the infrastructure or the like is improved after a disaster, the path switching pipe 30 is rotated again around the axis of the sewage pipe, and the third opening 30c is fixed upward. Then, the opening of the third opening 30 c is closed by the opening / closing means 32.
Thereby, a sewer pipe can be easily switched to the original public sewer A.

  On the other hand, the sewage collected in the sewage storage tank 36 is extracted by a vacuum vehicle after the infrastructure is restored, and sterilized by a specialized cleaning company.

FIG. 7 is an explanatory diagram for cleaning the emergency water management structure 40 after an emergency.
When cleaning the emergency water management structure 40 of the present invention, it is preferable to carry out the following procedure.
(1) The sewage in the sewage storage tank 36 is sucked up by a vacuum car.
(2) Clean and disinfect the inside of the sewage storage tank 36, the underground burrow 34, and the inside of the third sewage pipe 38.
Specifically, a method is preferred in which the inside of the underground burrow 34 and the inside of the third sewage pipe 38 communicating from the underground burrow 34 are cleaned with high-pressure water, and the washing water is allowed to flow into the sewage storage tank 36.
(3) Thereafter, the washing water collected in the sewage storage tank 36 is sucked up by a vacuum vehicle.
The disinfection of the emergency water management structure 40 is preferably performed in the same procedure as the cleaning in (1) to (3).

As described above, the emergency water management structure 40 of the present invention is configured to flow sewage to the third sewage pipe 38 through the underground buried pit 34, and therefore the third sewage pipe 38 can be easily cleaned and disinfected. It is.
That is, if the first sewage pipe 26, the second sewage pipe 28, and the third sewage pipe 38 are configured to communicate with each other, the third sewage pipe 38 must be cleaned and disinfected from the sewage storage tank 36 side. Therefore, the worker has to enter the sewage storage tank 36 to clean and disinfect.

  However, in the emergency water management structure 40 of the present application, the third sewage pipe 38 is connected to the underground burrow 34, and the sewage discharged from the first sewage pipe 26 passes through the underground burial 34. Therefore, the underground buried rod 34, the third sewage pipe 38, and the sewage storage tank 36 can be obtained simply by flowing high-pressure water through the underground buried rod 34 and sucking out the washing water and the disinfectant from the connecting hole 36a with a vacuum vehicle. Can be cleaned and disinfected at the same time.

  According to the emergency water management structure 40 of the present invention described above, the path switching pipe 30 is fixed with the third opening 30c facing upward during normal times, and the opening of the opening / closing means 32 is closed. Since the path switching pipe 30 is fixed with the portion 30c facing downward and the opening / closing means 32 is opened, the emergency mode of the emergency water management structure 40 is switched between the normal mode and the disaster mode. Can be used sometimes. Therefore, the privacy of the user can be protected, and it is not necessary for the residents on each floor to go to the first floor every time they use it.

  Further, since the sewage storage tank 36 normally flows from the first sewage pipe 26 to the second sewage pipe 28 via the path switching pipe 30, the underground buried rod 34, the third sewage pipe 38, and the sewage storage tank 36 are normally used. Not dirty. For this reason, maintenance of the underground burrow 34, the third sewage pipe 38, and the sewage storage tank 36 is not required at normal times.

  In addition, the emergency water management structure 40 can be switched from the normal mode to the disaster mode simply by rotating the path switching pipe 30 around the axis of the sewage pipe and switching the third opening 30c from upward to downward. Easy switching to the disaster mode. Therefore, it is not necessary to bend the first sewage pipe 26 and the second sewage pipe 28 for the rotation of the path switching pipe 30, and it is not necessary to break the path switching pipe 30.

  Furthermore, since the sewage storage tank 36 of the present invention communicates with the underground burrow 34 through the third opening 30c, even if parts are dropped during the switching operation of the path switching pipe 30, it falls into the sewage storage tank 36. There is nothing. In addition, since the cross-sectional area of the third sewage pipe 38 is smaller than the bottom area of the sewage storage tank 36 and the underground burrow 34, bad odor generated from the sewage in the sewage storage tank 36 is grounded via the underground burrow 34 It is hard to go up.

In addition, since the sewage storage tank 36 is connected to the underground burrow 34 through the third opening 30c and has a connection hole 36a, it is easy to clean and disinfect the emergency water management structure 40 after a disaster. It is.
That is, first, the sewage in the sewage storage tank 36 is sucked up by a vacuum vehicle, the inside of the underground burrow 34 and the inside of the third sewage pipe 38 leading from the underground burrow 34 are cleaned with high-pressure water, and the wash water is stored in the sewage storage tank. The underground buried rod 34, the third opening 30c, and the sewage storage tank 36 can be easily cleaned and sterilized at a time only by flowing the cleaning water stored in the sewage storage tank 36 with a vacuum car.

  Furthermore, since the emergency water management structure 40 of the present invention is provided in the ground reinforcement range 20, not only the building body 22 but also the emergency water management structure 40 is not easily damaged by a disaster. In addition, since the liquefaction phenomenon is unlikely to occur in the ground within the ground strengthening range 20, the sewage pipes such as the first sewage pipe 26, the second sewage pipe 28, and the third sewage pipe 38 are not easily damaged, and the underground burial 34 There is no possibility that the sewage storage tank 36 floats on the ground. Therefore, even if the public infrastructure such as sewer A is damaged, the emergency water management structure 40 of the present invention switched to the emergency mode can be used.

  Note that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

1 building, 2 storage tanks,
3 discharge adjustment means, 4 sewage storage structure,
10 water treatment system, 11 upstream piping,
11a The distal end of the upstream piping,
12 downstream piping, 12a proximal end of downstream piping,
13 Channel connection member,
14 drainage basin, 14a water reservoir,
15 pump, 16 purification processing section,
20 ground strengthening range, 22 building body,
24 Drain pipe,
26 1st sewage pipe, 26a flange,
28 Second sewage pipe, 28a flange,
30 path switching pipe, 30a first opening,
30b second opening, 30c third opening,
30d flange,
32 open / close means, 34 underground pit,
36 sewage storage tank, 36a connecting hole,
38 Third sewage piping, 40 Emergency water management structure,
41 vertical axis, 42 pile core, 44 mortar column,
46 mortar columns, 48 valves,
50 Emergency drinking water generator,
52 Water supply piping, 54 Surplus water piping,
A sewer, C well

Claims (8)

Close to the building body built inside the ground strengthening range that has been subjected to ground strengthening treatment, is set in the ground strengthening range,
A first sewage pipe communicating with a plurality of drain pipes for flowing sewage generated in the building body;
A second sewage pipe whose distal end communicates with a sewer passing outside the ground strengthening range;
A bowl-shaped underground burial provided in the ground,
A path switching pipe that connects the first sewage pipe and the second sewage pipe and is stored in the underground pit and discharges the sewage into the underground pit in the event of a disaster;
A sewage storage tank that has a connection hole embedded in the ground and opened to the ground, and stores the sewage;
An emergency water management structure comprising: a third sewage pipe having one end opened on a bottom surface of the underground pit and the other end opened on a sewage storage tank. The path switching pipe has a first opening communicating with and connected to the distal end of the first sewage pipe,
A hollow three-pronged pipe having a second opening communicating with and connected to the proximal end of the second sewage pipe,
Furthermore, the path switching pipe is provided on a wall surface between the first opening and the second opening, and a third opening for communicating the outside of the wall with the hollow,
Opening and closing means connected to the third opening and capable of opening and closing the opening of the third opening,
Normally, the third opening is fixed upward and the opening is closed by an opening / closing means.
The emergency water management structure according to claim 1, wherein the third opening is fixed downward and the opening is opened by an opening / closing means in the event of a disaster.   The emergency water management structure according to claim 2, wherein the third opening is also used as a cleaning port for cleaning the first sewage pipe and the second sewage pipe.   The emergency water management structure according to claim 2, wherein the opening / closing means is an opening lid that closes the third opening. The ground strengthening treatment involves rotating a mortar column into the ground by mixing cement milk poured from the tip of the pile core and earth and sand in the ground while rotating around the vertical axis while pressing a rod-shaped pile core into the ground. A deep mixing process to form,
The emergency water management structure according to claim 1, wherein the ground reinforcement range is a range surrounded by a rectangle with a mortar column formed by overlapping adjacent mortar columns. The underground pit and the sewage storage tank are buried within the ground reinforcement area,
The emergency water management structure according to claim 5, wherein the first sewage pipe, the second sewage pipe, and the third sewage pipe are piped on a mortar column.   7. The emergency water management structure according to claim 6, wherein the sewage storage tank is a reinforced concrete structure made of reinforcing steel and concrete and uses a mortar column as a foundation. An emergency drinking water generating device that generates drinking water obtained by filtering well water pumped up from a well, and surplus water containing impurities generated in the process of generating drinking water,
A water supply pipe for supplying the drinking water to the building body;
The emergency water management structure according to claim 1, further comprising: a surplus water pipe that supplies the surplus water to a building body.

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