JP5360446B1 - Rainwater storage structure in reinforced concrete slabs - Google Patents

Abstract

The present invention provides a rainwater storage structure in a reinforced concrete slab that is resistant to disasters such as tsunami and fire and can supply water using a head of a roof slab.
SOLUTION: A heat insulating material 5 is laid on a slab form 6 on the top floor of a reinforced concrete structure, a rain water collecting device 1 and a rain water storage pipe 2 are laid, the bars are arranged, and concrete 4 is placed. Thus, a rainwater storage structure that can store rainwater in the reinforced concrete slab 3 is provided. Further, the rainwater collecting device 1 can remove sand and clean the inside of the rainwater storage pipe 2. With regard to water supply, the multipurpose rainwater can be used by taking out the water supply pipe freely from the lower part of the long rainwater storage pipe 2.
[Selection] Figure 4

Description

The present invention relates to a rainwater storage structure in a reinforced concrete slab having a structure capable of storing rainwater in a concrete slab on the top floor of a reinforced concrete structure .

In recent years, lack of rainfall due to abnormal weather has become a problem. During the dry season, water supply for domestic use by the water supply system is restricted, which may interfere with daily life. Local governments are increasing the number of subsidies for rainwater use by installing rainwater storage tanks. The installation of the tank has been reviewed. On the other hand, local municipalities where damage is predicted due to the reconstruction of the devastated Tohoku disaster area, the Nankai Trough earthquake, the Tokyo earthquake, etc. are disasters such as earthquake, Tsunami, typhoon, tornado, flood, fire, etc. Therefore, there is a demand for a strong structure that can withstand such a disaster, and the structure is required to develop a rainwater storage tank that can withstand such disasters.

In general, most rainwater storage tanks for effective use of rainwater are installed on the ground surface and connected with downpipe to store rainwater. The purpose of using rainwater is to prepare garden water and emergency water in case of disasters in addition to plants and watering plants. In addition, there is a development that uses a large reservoir tank buried underground and a pipe embedded in the slab floor used for the foundation ground improvement construction method (registered utility model No. 3063325 public relations). Need a pump to use it.

Currently, rainwater storage tanks used in ordinary houses have a small water storage capacity, and the effective use of rainwater is restricted. In addition, the rainwater storage tank is installed on a gantry and fixed to the gantry or building, but a location for the rainwater storage tank is required. In addition, there is a need for a pump for use in miscellaneous water.

On the other hand, there is a rainwater reservoir (JP-A-2001-173027) that is configured to be attached to the eaves of a building that is attached to the outer wall of the structure, the rainwater introduction port is formed on the top surface, and the rainwater supply port is formed on the bottom side. It has been devised.

Also, a rainwater storage tank (Special Table 10-507237) integrated with the building structure has been devised.

As described above, a wide variety of rainwater storage tanks have been developed, but all of them are small-scale and have a rainwater storage structure within a strong reinforced concrete slab that can withstand disasters such as earthquakes, tsunamis, typhoons, tornadoes, floods, and fires. No development has been done. However, it is necessary to prepare for daily life, such as the ability to use flush toilets even when the infrastructure is stopped due to drought or disaster such as an earthquake, and effective use of rainwater is important.

In addition, the following patent documents can be cited as known techniques related to the present invention.

Patent application 2005-117758,

However, conventional rainwater storage tanks and water supply systems for effectively using rainwater have the following problems.

Japan's residential areas are small and it is difficult to secure a space for installing rainwater storage tanks for effective use of rainwater, and rainwater storage tanks such as ordinary houses have a small storage capacity and the range of effective use of rainwater is limited. ing. In addition, the rainwater storage tank is installed on a pedestal and fixed to the outer wall to prevent it from falling, but it is difficult to firmly fix it to the current outer wall. On the other hand, it is desirable not to install an elevated tank or the like on the roof of a flat roof structure such as reinforced concrete because it can be used as a place for installing a photovoltaic power generation panel.

In addition, rainwater storage tanks that are installed on the ground surface and stored by connecting vertical shafts do not have pumping capacity and cannot be used for miscellaneous water such as toilets unless a pump is used. In addition, since power such as electricity is required, there is a problem that it is not possible to respond when the infrastructure stops due to a disaster such as an earthquake.

There has also been devised to solve the above problems. For example, a rainwater reservoir formed with a rainwater introduction port formed on the upper surface and a rainwater supply port formed on the bottom side, which is configured to be attached to the eaves of a building attached to the outer wall of the structure (JP 2001-173027 A). ) And a rainwater storage tank (Special Table 10-507237) integrated with the building structure, both of which have problems in terms of complexity and cost for practical use. In addition, publicity of registered utility model No. 3063325 is a rainwater storage tank by connecting both ends of a large number of parallel pipes in the foundation slab with water headers, so it is communicated with water headers at both ends. The exposed part is exposed outside the concrete slab, so there is a problem that it cannot be used as a rainwater storage tank resistant to disasters . In addition, there is a rainwater storage tank with eaves wall (Japanese Patent Application No. 2009-265850) that I have developed with a plurality of reinforcing partition plates, but there is a problem that cannot cope with disasters.

On the other hand, areas that are expected to be damaged by the reconstruction of the devastated Tohoku disaster area, the Nankai Trough earthquake, the Tokyo earthquake, etc., and the nationwide municipalities are robust structures that can withstand all disasters. However, there is a problem that none of the rainwater storage tanks can cope with disaster prevention structures.

However, if rainwater collected in the rainwater storage tank is used, water charges and sewerage charges can be saved. In addition, when dam construction is stopped, a wide variety of structures and rainwater storage tanks installed in each household can contribute not only to water conservation but also to stormwater outflow control during heavy rains. From now on, it is important to provide rainwater storage tanks for all the structures and to make effective use of rainwater.

The present invention has been made in view of the above points, and in the future it will be able to withstand disasters such as earthquakes, tsunamis, typhoons, tornadoes, floods, fires, etc. , and a rainwater storage pipe in the slab on the top floor of reinforced concrete. It is hoped that the disaster prevention of local municipalities will be promoted with a strong structure laying pipes . Therefore, the main purpose is to provide a rainwater storage structure in a reinforced concrete slab that can withstand even underwater or fire.

This invention was made to solve the above problems, and is a rainwater storage structure in a reinforced concrete slab,
The rainwater storage structure in the reinforced concrete slab includes a slab form 6 formed on the top floor of the reinforced concrete structure, a heat insulating material 5 laid on the slab form 6, and a slab form 6 A rainwater storage structure including a reinforced concrete slab 3 formed by placing a rainwater collecting device 1 and a rainwater storage pipe 2 and placing concrete 4 thereon, and arranged in the concrete slab. A rainwater storage structure in a reinforced concrete slab characterized by being able to store rainwater. (Claim 1) is provided.

The rainwater catcher 1 and the rainwater storage pipe 2 are laid in the reinforced concrete slab 3 on the top floor of the reinforced concrete structure, so that the rainwater catcher 1 that collects rainwater on the roof is moved to the rainwater storage pipe 2. A rainwater storage structure (claim 2) in a reinforced concrete slab according to claim 1, wherein rainwater is allowed to flow naturally .

The most notable effect of the present invention is that in local municipalities where damage is predicted in recent years due to the reconstruction of the devastated Tohoku disaster area, the Nankai Trough earthquake, the Tokyo earthquake, etc. There is a need to promote disaster prevention with strong structures that can withstand disasters such as Tsunami, typhoons, tornadoes, floods, and fires. If all of these structures have the rainwater storage structure in the reinforced concrete slab of the present invention , it is possible to construct a rainwater storage tank that is not destroyed by those disasters, and to save water, as well as to prevent rainwater outflows during concentrated heavy rain. The effect is to be expected. In addition, it will have a great effect on the construction of disaster prevention shelters that can use water even in water and fire. On the other hand, rainwater utilization using the head from the slab on the top floor can be used for various purposes such as toilets and miscellaneous water even when the infrastructure is stopped due to the disaster described above. In addition, it is important from the viewpoint of global warming prevention to be able to use a large amount of rainwater that does not require expenses, which is a great effect.

According to the first aspect of the present invention, the slab form 6 formed on the uppermost floor of the reinforced concrete structure, the heat insulating material 5 laid on the slab form 6, and the slab form 6 The rainwater collecting device 1 and the rainwater storage pipe 2 are laid, and the concrete 4 is placed, so that rainwater can be stored in the concrete slab, and it can withstand all disasters. It becomes. Moreover, the heat insulation effect of a top floor increases by providing a rainwater storage tank in the slab of the top floor. On the other hand, a disaster prevention structure is required, and the effect of increasing the completeness of a disaster-resistant structure is great. In addition, there is an effect that a concrete slab that can withstand a large area can be constructed by providing auxiliary reinforcement under the rainwater collecting device and the rainwater storage pipe.

According to the invention which concerns on Claim 2 , the rainwater collection which collects rainwater on a rooftop is carried out by laying the rainwater collection apparatus 1 and the rainwater storage pipe 2 in the reinforced concrete slab 3 of the top floor of the said reinforced concrete structure. The effect of allowing rainwater to naturally flow into the rainwater storage pipe from the device, and by embedding the rainwater storage pipe in the reinforced concrete slab, a strong rainwater storage tank can be obtained even if a VU pipe is used for the rainwater storage pipe . It also has the effect of preventing corrosion.

Moreover, it is a big effect that it is not necessary to secure the place which installs a rainwater storage tank by providing a rainwater storage tank in a reinforced concrete slab . In addition, the rooftop can be used freely.

Furthermore, by installing a rainwater storage pipe in the reinforced concrete slab, the effect of facilitating selection of the material of the rainwater storage pipe and the effect of reducing the strength and thickness of the material are also significant effects from the cost aspect.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a plan layout view showing an embodiment of a rainwater storage structure in a reinforced concrete slab according to the present invention. Fig. 2 is a detailed cross-sectional view showing the installation situation of the rainwater storage structure in the reinforced concrete slab, and Fig. 3 is an enlarged cross-sectional view of the rainwater collector. FIG. 4 is an enlarged longitudinal sectional view showing a connection state between the rainwater collecting device and the rainwater storage pipe .

Referring to the drawings of this embodiment, FIG. 1 shows a storm water storage pipe 2 connected to a reinforced concrete slab 3, a storm water collecting apparatus 1 having a storm water collecting drain 7 and a cleaning inspection lid 8 via a connecting pipe 10. FIG. 2 is a plan layout view showing an embodiment of a rainwater storage structure laid in a reinforced concrete slab 3. On the other hand, the water supply pipe 11 is provided with a water supply pipe 11 below the end of the laid rainwater storage pipe 2.

FIG. 2 is a cross-sectional view of the rainwater collecting device 1 portion of FIG. 1. Rainwater in which a heat insulating material 5 is laid on a slab form 6 on the top floor of a reinforced concrete structure and a rainwater collecting drain 7 is fixed with screws 13. FIG. 3 is a cross-sectional view of a reinforced concrete slab 3 having a structure in which rainwater can be stored in a reinforced concrete slab 3 by laying and arranging a water collecting device 1 and a rainwater storage pipe 2 and placing concrete 4 therein . On the other hand, the water supply pipe 11 is taken up to the bottom of the slab form 6 under the end of the rainwater storage pipe 2 laid by piping. In addition, the water supply pipe 11 can be taken out from any position from the laid rainwater storage pipe 2 and a plurality of water supply pipes 11 can be taken out.

FIG. 3 is an enlarged cross-sectional view of a portion of the rainwater collecting apparatus 1 in which the rainwater collecting drain 7 of FIG. In addition, a partition plate 9 is provided in the rainwater collecting apparatus 1.

FIG. 4 shows a connecting pipe for connecting a rain water collecting device 1 having a rain water collecting drain 7 and a cleaning inspection lid 8 laid on a slab form 6 on the top floor of the reinforced concrete structure of FIG. FIG. 10 is an enlarged vertical cross-sectional view in which a connecting portion in which the concrete 4 is placed by connecting to the rainwater storage pipe 2 and arranging concrete 4 is enlarged. The rainwater collecting apparatus 1 was fixed with screws 13 so that the rainwater collecting drain 7 and the cleaning inspection lid 8 could be removed. Furthermore, the partition plate 9 is provided in the rain water collecting apparatus 1 up and down.

Example 1 Assuming a structure with a reinforced concrete structure and a floor area of about 10 square meters, when the amount of rainwater 12 that can be used for the rainwater storage pipe 2 is calculated, the rainwater storage pipe 2 in the reinforced concrete slab 3 is calculated. The total length of the VU pipe when it is laid with a 150mm VU pipe is 26m, and 0.46m2 of water can be stored. If the rainwater 12 can be stored for 0.46 m2 of rice, even if the above structure is a disaster prevention evacuation shelter, it can be used for water for daily life and miscellaneous water under water and fire. In particular, it is important to be able to supply water using the drop of the reinforced concrete slab 3 on the top floor when the electrical infrastructure is stopped. Furthermore, the rainwater 12 at the time of drought or when the infrastructure is stopped becomes the water of life. On the other hand, the construction market with a floor area of about 10 square meters is a huge market and is expected to be used for various purposes.

Example 2 Assuming a house with a reinforced concrete structure and a floor area on the top floor of 38 square meters, the amount of rainwater 12 that can be used for the rainwater storage pipe 2 is calculated. When the rainwater storage pipe 2 is laid with a 150 mm VU pipe in 3, the total length of the VU pipe is 120 m, and 2.1 m2 of water can be stored. The fact that a large amount of rainwater 12 can be stored in such a small-scale structure not only saves water, but also spreads the structure with the rainwater storage pipe 2 in the concrete slab 3, thereby suppressing rainwater outflow in the case of concentrated heavy rain. Can contribute. On the other hand, the rainwater storage tank formed by laying the rainwater storage pipe 2 enhances the heat insulation effect on the top floor.

As can be inferred from Example 3, Example 1 and Example 2, large-scale reinforced concrete structures such as public facilities such as schools can store a large amount of rainwater 12. The rainwater 12 is used by laying the rainwater storage pipe 2 on the entire surface of each floor, so that a large amount of the rainwater 12 in the rainwater storage pipe 2 can be used for multiple purposes. On the other hand, by burying the rainwater storage tube 2 in the reinforced concrete slab 3, it is rainwater storage tube 2 having a disaster can be utilized to fire hydrants or the like. On the other hand, the rainwater storage tank formed by laying the rainwater storage pipe 2 enhances the heat insulation effect on the top floor.

Example 4 Collecting rainwater 12 into a rainwater storage pipe 2 laid in a concrete slab 3 through a connecting pipe 10 in a rainwater collecting apparatus 1 having a rainwater collecting drain 7 and a cleaning inspection lid 8. By doing so, it is possible to prevent the inflow of oil on the seawater surface and the inflow of seawater, and to remove sand and fallen leaves accumulated on the rooftop. Moreover, it becomes a rainwater storage structure strong against a disaster by laying the rainwater storage pipe 2 in the reinforced concrete slab 3. Further, the inside of the rainwater storage pipe 2 can be cleaned from the cleaning inspection port 8.

Example 5 In order to utilize rainwater 12 as drinking water, the structure is reinforced concrete, and the water supply pipe 11 is freely slab-shaped from the bottom of the rainwater storage pipe 2 laid in the reinforced concrete slab 3 on the roof. The rainwater 12 can be used as drinking water by taking it under 6 and attaching a water purifier.

Example 6 In order to utilize rainwater 12 as warm water, the structure is reinforced concrete, and the water supply pipe 11 is freely placed under the slab form 6 from the lower part of the rainwater storage pipe 2 laid in the reinforced concrete slab 3 on the roof. The hot water can be used by attaching the water heater and circulating it in the rainwater storage pipe 2.

Example 7 In order to use rainwater 12 as disaster prevention water, the structure is reinforced concrete, and the water supply pipe 11 is freely slab-molded from the lower part of the rainwater storage pipe 2 laid in the reinforced concrete slab 3 on the roof. Take out the bottom of 6 and install a sprinkler-like watering head to become a fire extinguishing equipment.

Example 8: About a structure in a heavy snow region, the structure in a heavy snow region has problems such as that it is not possible to install solar power generation due to snow, or that snow must be removed, but the structure is reinforced concrete and the roof reinforced concrete slab No need to remove snow by freely taking out the water supply pipe 11 under the slab form 6 from the lower part of the rainwater storage pipe 2 laid in 3 and attaching a water heater to circulate in the rainwater storage pipe 2 It becomes a rooftop, and it is possible to install a photovoltaic panel on the rooftop. The snow cover of the solar power generation panel can be solved by sprinkling hot water in the rainwater storage pipe 2.

As mentioned above, although embodiment and the Example of this invention were described, the scope of the present invention is not limited to this. For example, the shape, dimensions, material, laying, and the like of the rainwater collecting device and the rainwater storage pipe are appropriately selected according to the situation.

Disaster prevention of disaster-stricken areas in the Tohoku region that were devastated by the Great East Japan Earthquake, and disaster-prevented structures such as the Nankai Trough earthquake, Tokyo earthquake, Mount Fuji eruption, heavy snowfall, heavy rain disaster, etc. Has been questioned. There is a high possibility that the interruption of infrastructure caused by these disasters will cause problems in daily life. In particular, flush toilets are prevalent. Today, life without water is impossible, and water shortage due to insufficient precipitation due to abnormal weather is regarded as a problem. Under these circumstances, rainwater, which is a gift from nature, can be valued. Disaster prevention rainwater storage should be installed from disaster prevention houses to all disaster prevention structures. From the viewpoint of preventing global warming, concentrated rainstorms, etc. It is also important from the rainwater outflow control. On the other hand, the disaster-prevention rainwater storage market that can supply water using the head from the height of the roof slab, considering disaster prevention and infrastructure stoppage, has an endless market and potential, ranging from homes to a wide variety of structures. In addition, all structures including houses should be promoted for disaster prevention in cities, towns and villages in Japan with strong structures that can withstand earthquakes, tsunamis, typhoons, floods, and fires.

FIG. 1 is a plan layout view showing an embodiment of a rainwater storage structure in a reinforced concrete slab according to the present invention.
FIG. 2 is a detailed cross-sectional view showing the installation state of the rainwater storage structure in the reinforced concrete slab .
FIG. 3 is an enlarged cross-sectional view of the rainwater collector part.
FIG. 4 is an enlarged longitudinal sectional view showing a connection state between the rainwater collecting device and the rainwater storage pipe .

1. Rain water collector
2. Rainwater storage pipe
3. Reinforced concrete slab
4. Concrete
5. Insulation
6. Slab formwork
7. Rainwater drainage drain
8. Cleaning inspection lid
9. Partition plate
10. Connection pipe
11. Water supply pipe
12. Rainwater
13. Screw

Claims (2)

A rainwater storage structure in a reinforced concrete slab,
The rainwater storage structure in the reinforced concrete slab includes a slab form 6 formed on the top floor of the reinforced concrete structure, a heat insulating material 5 laid on the slab form 6, and a slab form 6 A rainwater storage structure including a reinforced concrete slab 3 formed by placing a rainwater collecting device 1 and a rainwater storage pipe 2 and placing concrete 4 thereon, and arranged in the concrete slab. A rainwater storage structure in a reinforced concrete slab characterized by being able to store rainwater. The rainwater collecting device 1 and the rainwater storage pipe 2 are laid in the reinforced concrete slab 3 on the top floor of the reinforced concrete structure, so that rainwater is collected from the rainwater collecting device 1 for collecting rainwater on the roof to the rainwater storage pipe 2. The rainwater storage structure in the reinforced concrete slab according to claim 1, wherein the rainwater storage structure according to claim 1 is made to flow naturally.

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