KR101771073B1 - Storage facilities for storing and passing rainwater and method for constructing this same - Google Patents

Abstract

The present invention relates to a stormwater storage and submerged infiltration combined water storage facility and method, in which a predetermined amount of rainwater is stored at all times to supply rainwater to various water sources at any time, It is intended to infiltrate into the ground.
The rainwater storage and underground infiltration combined water storage system according to the present invention includes a water storage tank (10) having a rainwater inflow section and storing rainwater therein; A permeable portion (40) installed on a bottom portion of the water storage tank and supplying and storing rainwater from the water storage tank and permeating the rainwater into the ground; Wherein the water permeable portion has a tubular shape extending from the inside to the outside of the water storage tank and penetrating the water storage portion stored in the water storage tank and having at least one inlet portion communicating with the inside of the water storage tank and at least one outlet communicating with the outside of the water storage tank, A rainwater infiltration pipe (20) arranged above the bottom of the water storage tank to store rainwater below the inflow section; A valve body (30) for opening and closing an inflow portion of the rainwater infiltration pipe; And water supply means (50) for supplying water to the outside of the water storage tank to utilize rainwater stored in the water storage tank.

Description

{STORAGE FACILITIES FOR STORING AND PASSING RAINWATER AND METHOD FOR CONSTRUCTION THIS SAME}

More particularly, the present invention relates to a water storage facility, and more particularly, to a water storage facility that stores a predetermined amount of rainwater at all times to water the rainwater at various times in various waters and controls the rainwater stored in the rainwater through the water storage unit Storage and underground penetration combined type water storage facility and construction method.

The average annual rainfall in Korea is higher than the world average, but the population density is so high that the annual precipitation per capita is much less than the annual rainfall per capita in the world. Therefore, in order to solve the water shortage, it is necessary to develop a system to improve the water deficit. However, due to the so-called desert water management system that focuses on the rapid drainage of rainwater, And the flooding of the rivers caused by the flooding of the rivers has caused enormous damage to the crops.

In particular, Korea is one of the most difficult countries to manage water due to the disaster that causes floods and droughts at the same time, and there are not enough facilities to store rainwater in summer and to utilize the rainwater through reduction of runoff through reservoir facilities It is true.

Therefore, recently, in order to minimize damages caused by stormwater, stormwater is not drained to the ground but stormwater is filtered, and the stormwater and floodwater are filtered, and the stormwater is stored in a reservoir having a constant volume. And a variety of technical means have been developed.

Patent Document 10-1510615 discloses a rainwater storage unit having a lower plate and a rectangular tube-shaped upper wall including a front wall, a rear wall, a left wall, and a right wall vertically coupled to the front, rear, left, and right sides of the lower plate; A partition wall vertically installed in the rainwater storage part to divide the rainwater storage part; An upper plate coupled to the upper side of the rainwater storage unit and covering an upper portion of the rainwater storage unit; And a rainwater inflow part provided on the upper part of the upper plate and composed of a normal wall, a top rear wall, a top wall, and a top and bottom wall and having a hollow square pillar shape, and the top plate is connected to the rainwater storage part And the bottom plate includes a drain hole into which the inflowing rainwater can permeate, so that the rainwater can penetrate through the drain hole However, it is difficult to store a certain amount of rainwater because the drainage hole is formed on the floor, so water supply for the utilization of rainwater is not smooth.

Patent No. 10-1510615

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a rainwater collecting apparatus and a rainwater collecting method, in which rainwater is always stored by constantly storing a certain amount of rainwater, And to provide a combined type water storage facility and method.

The rainwater storage and underground infiltration combined water storage system according to the present invention comprises a water storage tank having a rainwater inflow part and storing rainwater therein; A permeable portion for receiving rainwater from the water storage tank and storing the rainwater and for penetrating the rainwater into the ground; Wherein the water permeable portion has a tubular shape extending from the inside to the outside of the water storage tank and penetrating the water storage portion stored in the water storage tank and having at least one inlet portion communicating with the inside of the water storage tank and at least one outlet communicating with the outside of the water storage tank, A rainwater infiltration pipe disposed above the bottom of the water storage tank to store rainwater below the inflow section; And a valve body that opens and closes the inflow portion of the rainwater infiltration pipe.

The rainwater storage and underground infiltration combined type water storage system according to the present invention includes a water storage tank having a rainwater inflow part and storing rainwater therein; A permeable portion for receiving rainwater from the water storage tank and storing the rainwater and for penetrating the rainwater into the ground; A discharge pipe formed at a predetermined height so as to communicate with the inside of the water storage tank and discharging rainwater stored in the water storage tank by a water level; And a permeation inducing pipe branched from the discharge pipe and permeating rainwater discharged along the discharge pipe into the ground.

The rainwater storage and underground infiltration combined type water storage system according to the present invention includes a water storage tank having a rainwater inflow part and storing rainwater therein; A permeable portion for receiving rainwater from the water storage tank and storing the rainwater and for penetrating the rainwater into the ground; And a plurality of discharge holes formed in the bottom of the water storage tank so as to be positioned higher than the bottom of the water storage tank and the rainwater flowing through the flow- And a penetration inducing tube for permeating the permeation inducing tube.

According to the rainwater storage and underground infiltration combined water storage facility and construction method according to the present invention, all the embodiments always store a certain amount of rainwater in the water storage tank so that water can be supplied whenever water is required, There is an effect that nutrition of the ground can be made even if it penetrates into the ground through the pore portion.

FIG. 1 and FIG. 2 are operational state diagrams of the rainwater storage and underground infiltration combined type water storage system according to the first embodiment of the present invention,
Fig. 1 is a view showing a state in which rainwater is stored,
Fig. 2 shows the rainwater infiltration.
3 is a view showing a water level control cap applied to a combined rainwater storage and underground infiltration water storage system according to Embodiment 1 of the present invention.
FIG. 4 is a view showing the construction of a combined water storage and stormwater infiltration system according to a second embodiment of the present invention; FIG.
5 is a configuration diagram of a combined water storage and stormwater infiltration system according to a third embodiment of the present invention.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

≪ Example 1 >

As shown in FIGS. 1 and 2, the rainwater storage and underground infiltration combined water storage system according to the present embodiment includes a water storage tank 10 for storing rainwater, a water storage tank 10 for storing a part of the rainwater stored in the water storage tank 10 A valve body 30 for controlling penetration of rainwater through opening and closing of the rainwater infiltration pipe 20 and the rainwater infiltration pipe 20 and a water supply means 50 for utilizing the rainwater stored in the water storage tank 10, Preferably, the water permeable portion 40 made of the permeable material 41 and the water permeable sheet 42 is installed under the water storage tank 10 so that the rainwater discharged through the rainwater infiltration pipe 20 is stored and stored in the ground . In addition, the foundation 60 is constructed to prevent the water storage facility of the present invention from being distorted due to subsidence or the like.

The water storage tank 10 is made of a variety of materials such as concrete, synthetic resin, and iron plate. An inlet 11 for inflow of rainwater is formed in one side (left side in FIG. 1) and a discharge pipe 12) are equipped.

An air vent 13 is formed at the upper end of the water storage tank 10 to reduce the resistance of the air due to inflow of rainwater and communicates with the ground.

The rainwater flowing into the water tank 10 contains foreign substances such as sand and leaves, and a foreign matter collecting tank 14 is provided for collecting the foreign substances.

The foreign matter collecting tank 14 is formed at the bottom of the water storage tank 10 at a lower height than the bottom portion of the water storage tank 10 and opens upward to collect foreign matter on the bottom of the water storage tank 10.

It is preferable that the bottom of the water storage tank 10 is formed to be inclined downward toward the foreign matter collecting tank 14 in order to naturally recover the foreign matter.

The water storage tank 10 may include a cleaning manhole 15 communicating with the outside (ground) for cleaning the foreign substances collected in the foreign matter collecting tank 14 and a ladder for moving the operator.

The rainwater infiltration pipe 20 is installed inside the water storage tank 10 so as to communicate with the outside of the water storage tank 10 and discharges some water stored in the water storage tank 10 to the water storage unit 40 outside the water storage tank 10 40), and the inlet portion 21 and the outlet portion 22 are formed in a tubular shape having a space therein for the inflow and outflow of rainwater.

The inflow section 21 of the rainwater infiltration pipe 20 communicates with the inside of the water storage tank 10 and the discharge section 22 communicates with the outside of the water storage tank 10. The inflow section 21 and the discharge section 22 For example, at least one round hole formed in the periphery of the rainwater infiltration pipe 20.

Further, the discharge portion may be formed by opening the bottom of the rainwater infiltration pipe 20.

The present invention is characterized in that the inflow portion 21 of the rainwater infiltration pipe 20 is disposed higher than the bottom portion of the water storage tank 10 so that rainwater stored under the inflow portion 21 can not penetrate into the ground, It can not be discharged and therefore, it always stores a certain amount of rainwater.

The rainwater infiltration pipe 20 penetrates the rainwater through the opening and closing of the valve body 30. That is, when the inflow part 21 is opened by the valve body 30, the rainwater in the water storage tank 10 is discharged (22) and does not penetrate rainwater inside the water storage tank (10) when the inflow part (21) is closed. The present invention can be configured as follows so that rainwater can be naturally infiltrated if a certain amount of rainwater is stored in the water storage tank 10 separately from the opening and closing of the valve body 30.

A rainwater induction pipe 23 is formed which communicates the inside of the rainwater infiltration pipe 20 with the inside of the water storage tank 10 to guide the rainwater in the water storage tank 10 to the rainwater infiltration pipe 20.

One end of the rainwater induction pipe 23 is branched and connected to the periphery of the rainwater infiltration pipe 20 so that one end of the discharge end is connected between the inflow portion 21 of the rainwater inflow pipe 20 and the discharge portion 22 And an inlet end of the other end is formed to extend upward toward the upper side (lower than the outlet pipe 12) than the outlet end of the one side.

The rainwater induction pipe 23 may be a single piece and may be connected to the rainwater infiltration pipe 20 if necessary. Of course, the portion where the rainwater induction pipe 23 is connected when the rainwater induction pipe 23 is not used It is sealed.

The trap portion 24 may be formed on the inlet side of the upper portion of the rainwater induction pipe 23 to prevent the floating matter from flowing into the permeable portion 40. The trap portion 24 is bent under the water surface in such a manner that the inflow end is directed toward the bottom, thereby blocking the infiltration of the float.

The inlet end of the other side of the rainwater induction pipe 23 may be constituted by a filtering network for filtering foreign matter contained in rainwater.

The height of the inflow end of the rainwater induction pipe 23 is a height at which the rainwater is infiltrated. A water level adjustment cap 25 (see FIG. 3) is formed at the inflow end of the rainwater induction pipe 23 so that the infiltration height of the rainwater can be freely adjusted . The water level adjusting cap 25 is used in combination with the inlet end of the rainwater guide pipe 23 in the form of a tubular open top and bottom and without a trap portion.

The rainwater infiltration pipe 20 is sealed at a portion passing through the water storage tank 10 and is supported at the periphery of the bottom of the water storage tank 10 to support the rainwater infiltration pipe 20, A ring-shaped wing portion can be constituted.

In addition, the wings may be of a prefabricated type and may be provided at various heights in the rainwater infiltration pipe 20 to adjust the height of the inflow section 21. [

The valve body 30 preferably includes a valve 31 which is installed inside the rainwater infiltration pipe 20 so as to be able to move up and down so as to open and close the inflow portion 21 and a valve 31 connected to the valve 31, And a valve manhole 34 provided on the outside of the water storage tank 10 and protecting the valve stem 33.

The valve 31 rises above the inflow section 21 of the rainwater infiltration pipe 20 to open the inflow section 21 and contrarily to the lower side of the inflow section 21 to close the inflow section 21, The structured inflow part 21 is not closed but the space between the inflow part 21 and the discharge part 22 is blocked to prevent the rainwater flowing through the inflow part 21 from flowing to the discharge part 22. [

Of course, the valve 31 is not limited to the above-described method, and it is also possible to directly open and close the inflow part 21. For example, the valve 31 may be formed in a tubular shape so as to be movable up and down around the rainwater infiltration pipe 20 The rainwater infiltration pipe 20 is lowered and overlapped with the rainwater infiltration pipe 20 so that the inflow part 21 is closed and the inflow part 21 is lifted up to the upper part of the inflow part 21 of the rainwater infiltration pipe 20.

The valve rod 33 is a structure for operating the opening and closing of the valve 31 on the ground and is disposed to face the ground through the upper part of the rainwater inflow pipe 20 and the handle 32 is disposed in the valve manhole 34 .

The valve stem 33 can be lifted up and down by any means.

The valve manhole 34 is formed on the outside of the water storage tank 10 and includes a manhole body in which an upper portion of the valve stem 33 and the handle 32 are accommodated and a cover for opening and closing the upper opening of the manhole body.

In the present invention, the rainwater discharged from the water storage tank 10 through the water permeable portion 40 is temporarily stored and infiltrated into the ground. That is, rainwater of the water storage tank 10 is stored in the water permeable portion 40 It is possible to nourish the ground in the wet season by infiltrating a small amount of rainwater stored afterwards into the ground.

The permeable portion 40 is composed of a plurality of permeable materials 41 composed of aggregates such as gravel and a permeable sheet 42 covering or covering the permeable material 41 to prevent oil leakage of the permeable material 41.

The permeable material 41 is piled up at a predetermined height to form a permeable layer, and the permeable sheet 42 covers both the upper and left and right sides of the permeable layer and the entire permeable layer.

The water supply means 50 can be configured by a water supply pump and a water supply pipe and the water supply pipe is installed inside the water storage tank 10 so that the inflow end is disposed near the floor (below the inflow portion 21) Of course, it is also possible to install the water supply pump inside the water storage tank 10.

The base portion 60 is preferably made of a concrete body to prevent warpage of the water storage tank 10 and the water permeable portion 40, and it is possible to use both a field installation type and a prefabricated prefabricated concrete type.

Although the permeable portion 40 is illustrated as being installed directly beneath the water storage tank 10 in the present embodiment, the permeable portion 40 may be disposed around the water storage tank 10, The pipe (20) is piped so as to supply rainwater to the water permeable portion (40).

In this case, the rainwater infiltration pipe 20 penetrates the rain water in the water storage tank 10 into the ground, and a separate rain water supply pipe is additionally provided, so that the rainwater in the water storage tank 10 is separated from the water storage tank 10 through the rain water supply pipe It is also possible to supply water to the pervious portion 40 at the place.

The rainwater storage and underground penetration combined water storage method according to the present embodiment will be described as follows (the water storage unit 40 is constructed as an example).

1. Storing rainwater (see Fig. 1).

The valve 31 of the valve body 30 is disposed at the lower portion of the inflow portion 21 to block the gap between the inflow portion 21 and the discharge portion 22 so that the rainwater passes through the inflow portion 21, So that it can not flow to the discharge portion 22. [

The rainwater flows into the water storage tank (10) through the inlet (11).

Therefore, the rainwater is stored up to the inflow end height of the rainwater guide pipe 23.

2. Rainwater infiltration (see FIG. 2).

Infiltration of the rainwater stored in the water storage tank 10 is divided into a control type by the operation of the valve body 30 of the manager and a water level type using the rainwater induction pipe 23.

end. Controlled rainwater infiltration.

When the operator manipulates the handle 32 on the ground to infiltrate the rainwater stored in the water storage tank 10, the valve rod 33 rises and the water in the water storage tank 10 through the inflow section 21 and the rainwater infiltration pipe 20 The inner-discharge portion 22 and the water-permeable portion 40 communicate with each other.

Therefore, the rainwater in the water storage tank 10 penetrates the permeable portion 40 via the rainwater infiltration pipe 20.

Since the amount of the rainwater is reduced and the rainwater can not flow into the inflow part 21 at the water level below the inflow part 21, the rainwater at the water level below the inflow part 21 is always stored. As a result, .

The penetration of the rainwater is stopped by the descent of the valve 31.

I. Water level rainwater infiltration.

The rainwater is filled up to the height of the rainwater guide pipe 23 in the closed state in which the inlet portion 21 and the discharge portion 22 of the rainwater infiltration pipe 20 are disconnected from each other by the valve 31. [

The rainwater flows into the rainwater inflow pipe 23 through the inflow end of the rainwater inflow pipe 23 when the rainwater reaches the upper inflow end of the rainwater inflow pipe 23, And permeates the permeable portion 40 through the rear discharge portion 22.

When the rainwater level is lowered by the discharge of the rainwater than the inflow end of the rainwater induction pipe 23, the rainwater is stored in the water storage tank 10.

The rainwater infiltrated into the permeable portion 40 through the valve body control type and the water level control type is stored through the permeable material 41 of the permeable portion 40 and gradually penetrates into the ground through the permeable sheet 42. That is, the permeable portion 40 penetrates the ground at a predetermined speed (slower than when the rainwater penetrates directly into the ground) while storing the rainwater.

 Meanwhile, when the amount of inflow of rainwater increases due to the rainy season or the like and is stored up to the level of the discharge pipe 12, some of the rainwater is infiltrated into the permeable portion 40 through the rainwater induction pipe 23, ) To the river or the like.

The construction method of rainwater storage and underground penetration combined type water storage system according to the present embodiment is as follows.

1. Terracotta.

In order to construct the water storage facility, the ground is laid out to provide space.

2. Construction of foundation.

The bottom portion of the ter- minator space is planarized and the base portion 60 of the concrete is constructed.

3. Construction of pitcher part.

The permeable material 41 is placed on the base portion 60 of the concrete at a predetermined height and then the permeable sheet 42 is covered to cover the permeable portion 40 or the permeable sheet 42 is laid on the base portion 60, After the ash 41 is installed at a predetermined height, the permeable material 41 is covered with the permeable sheet 42 to construct the permeable portion 40.

4. Water tank construction.

A water storage tank (10) is installed above the permeable portion (40). In this process, the bottom of the rainwater infiltration pipe 20 is inserted into the permeable portion 40 in accordance with the hole formed in the bottom of the water storage tank 10. Preferably, the permeable portion 40 is formed with a groove portion into which the bottom of the rainwater infiltration pipe 20 is inserted.

When the water tank (10) is installed, various pipelines are installed together.

5. Covering.

At this time, the lid of the valve manhole 34 and the lid of the work manhole are exposed to the ground at this time.

≪ Example 2 >

As shown in FIG. 4, the rainwater storage and underground penetration combined type water storage system according to the present embodiment has the same structure as that of the first embodiment in the water storage tank 10 and the discharge pipe 12, The rainwater discharged through the discharge pipe (12) is supplied to the permeable portion (40) without using the pipe (20).

In the present embodiment, an external permeation inducing pipe 70 is formed which is branched from the discharge pipe 12 and permeates the rainwater discharged along the discharge pipe into the ground.

The external infiltration induction pipe 70 is installed such that the upper portion of the external infiltration induction pipe 70 is branched at the bottom of the discharge pipe 12 and inserted into the permeable portion 40 while being arranged along the water storage tank 10.

The external infiltration induction pipe 70 may be fixed to the outer wall of the water storage tank 10 through a fixing means such as a band.

In addition, the external infiltration induction pipe 70 may be constituted by a valve 71 for controlling rainwater infiltration. The valve 71 can be of any shape capable of being operated on the ground.

A foreign matter collecting tank and the like not shown in the figure are configured in the same manner as in Embodiment 1. [

According to the present embodiment, the rainwater is stored in the water storage tank 10, and water is supplied when necessary, when the water supply means 50 is operated.

The rainwater is discharged to the outside of the water storage tank (10) through the discharge pipe (12).

In this process, some of the rainwater flowing along the discharge pipe 12 flows into the external infiltration induction pipe 70 and is permeated to the permeation unit 40 through the external infiltration induction pipe 70.

The rainwater flowing along the discharge pipe 12 when the valve 71 is applied infiltrates through the external infiltration induction pipe 70 only when the valve 71 is opened.

The rainwater can not be discharged to the outside of the water storage tank 10 when the storage amount of the rainwater falls below the discharge pipe 12 due to the discharge and infiltration of the rainwater.

The external penetration induction pipe 70 of the second embodiment is applicable to the discharge pipe 12 of the first embodiment, that is, the second embodiment can be used independently of the first embodiment,

The construction method of this embodiment can be practiced from Embodiment 1, and is briefly described as follows. The construction is comprised of a trencher-foundation installation-permeable portion construction-reservoir construction-cover operation, and the discharge pipe 12 is piped And the external infiltration induction pipe 70 is installed outside the water storage tank 10 and the bottom portion is inserted into the water permeable portion 40. [

Also in this embodiment, the permeable portion 40 may be disposed around the lower portion of the water storage tank 10, and the external infiltration induction pipe 70 may be connected to the permeable portion 40.

≪ Example 3 >

As shown in FIG. 5, the rainwater storage and underground penetration combined type water storage facility according to the present embodiment is different from the first and second embodiments in that a built-in infiltration induction pipe 80 is installed in the water storage tank 10 , Except for the rainwater infiltration pipe 20 of the first embodiment, are the same as those of the first embodiment.

The built-in infiltration induction pipe 80 has a tubular shape having an inlet portion and an outlet portion opened to both upper and lower sides and is installed inside and outside the water reservoir 10 (the water inflow portion 40 is installed upright, So that a predetermined amount of rainwater can be stored at all times, and the bottom discharge portion is inserted into the water permeable portion 40.

The inflow portion on the upper side of the built-in infiltration induction pipe 80 is lower than the height of the discharge pipe 12.

A trap portion may also be formed on the upper inlet side of the built-in infiltration induction pipe (80).

It is possible that the built-in infiltration induction pipe 80 is applied with a leveling cap for achieving the same purpose as the leveling cap of the first embodiment.

According to the present embodiment, the rainwater introduced into the water storage tank 10 can be stored at a number below the inflow section on the upper side of the built-in infiltration induction pipe 80. The rainwater above the water level penetrates the permeable portion 40 through the built-in infiltration induction pipe 80 and the rainwater at the height of the discharge pipe 12 is discharged to the river or the like through the discharge pipe 12.

The construction method of this embodiment is composed of a trencher-foundation installation-permeable portion construction-water reservoir construction-earth cover process, and when the water tank is installed, the built-in permeation induction pipe 80 is inserted into the hole formed in the bottom portion of the water storage tank 10 So that the bottom portion is inserted into the permeable portion 40.

Also in this embodiment, the permeable portion 40 may be disposed around the lower portion of the water storage tank 10, and the built-in permeable induction pipe 80 may be connected to the permeable portion 40 at the discharge end.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

10: water tank, 11: rainwater inflow section
12: discharge pipe, 20: rainwater infiltration pipe
21: inlet portion, 22: outlet portion
23: Rainwater induction pipe, 24: Trap portion
30: valve body, 31: valve
32: handle, 33: valve stem
34: valve manhole, 40:
50: water supply means, 60: base portion
70: external penetration induction pipe, 80: built-in penetration induction pipe

Claims (16)

A water storage tank (10) provided with a rainwater inflow section and storing rainwater therein;
A permeable portion (40) for receiving and storing rainwater from the reservoir and permeating the rainwater into the ground;
And at least one outlet communicating with the outside of the water reservoir is provided to allow the rainwater stored in the water reservoir to pass through the water permeable portion or the ground A rainwater infiltration pipe (20) disposed above the bottom of the water storage tank to store rainwater below the inflow section;
A valve body (30) for opening and closing an inflow portion of the rainwater infiltration pipe;
And a rainwater guiding pipe (23) which branches off between the inflow part and the discharge part of the rainwater infiltration pipe and extends upward toward the upper part of the rainwater infiltration pipe and guides the rainwater stored in the water storage tank to the rainwater infiltration pipe Features of rainwater storage and underground penetration combined type water storage facility. A water storage tank provided with a rainwater inflow section and storing rainwater therein;
A permeable portion for receiving rainwater from the water storage tank and storing the rainwater and for penetrating the rainwater into the ground;
A discharge pipe formed at a predetermined height so as to communicate with the inside of the water storage tank and discharging rainwater stored in the water storage tank by a water level;
An external infiltration induction pipe branched from the discharge pipe and permeating rainwater discharged along the discharge pipe into the permeable portion;
And a foreign matter collecting tank formed inside the water reservoir at a lower level than the bottom of the water reservoir and storing foreign matter deposited on the bottom of the water reservoir. A water storage tank provided with a rainwater inflow section and storing rainwater therein;
A permeable portion for receiving rainwater from the water storage tank and storing the rainwater and for penetrating the rainwater into the ground;
And a water supply unit that is installed on the water supply unit, the water supply unit being disposed inside and outside the water storage tank so that the inflow unit is disposed higher than the bottom of the water storage tank, and the rainwater flowing through the inflow unit is discharged to the discharge unit A built-in infiltration induction tube for infiltrating into the ground through;
And a foreign matter collecting tank formed inside the water reservoir at a lower level than the bottom of the water reservoir and storing foreign matter deposited on the bottom of the water reservoir. The composite water storage system according to any one of claims 1 to 3, further comprising water supply means for supplying water to the outside of the water storage tank to utilize rainwater stored in the water storage tank. 4. The method of claim 1, further comprising a base portion (60) of concrete, which is installed at the bottom of the permeable portion and supports the permeable portion and the reservoir. Water storage facilities. delete The combined water storage system according to claim 1, further comprising a trap portion formed at an inflow end of the rainwater guide pipe. The combined water storage and stormwater infiltration system according to claim 1, further comprising a water level adjusting cap assembled to the inflow end of the rainwater induction pipe. The valve element according to any one of claims 1 to 7, wherein the valve body is provided inside the rainwater infiltration pipe so as to be able to move up and down so that the rainwater in the water storage tank flows into the rainwater infiltration pipe at the time of opening, A valve stem connected to the valve and provided with a handle, and a valve manhole provided outside the reservoir tank for protecting the valve stem. Type water storage facility. The combined water storage and stormwater infiltration system according to claim 1, further comprising a foreign matter collection tank inside the water storage tank, the foreign matter collection tank being formed lower than the bottom of the water storage tank and storing foreign matter deposited on the bottom of the water storage tank. [6] The combined water storage system according to claim 4, further comprising a water level adjusting cap assembled to an inflow end of the infiltration induction pipe. [6] The apparatus according to claim 1, further comprising an external infiltration induction pipe branched from the discharge pipe (12) formed in the reservoir and permeating rainwater discharged along the discharge pipe into the permeable portion. Infiltration mixed water storage facility. The rainwater inflow pipe according to claim 1, wherein the rainwater infiltration pipe includes a rainwater supply pipe for infiltrating rainwater of the water storage tank into the ground, and connecting the water storage unit and the water discharge unit to infiltrate the rainwater stored in the water storage tank into the water discharge unit. Storage and underground penetration combined type water storage facility. A method of constructing a combined rainwater storage and rainwater infiltration system according to claim 1,
A first step of excavating and digging the ground;
A second step of constructing a permeable portion at the bottom of the tterifier space formed through the first step;
A third step of constructing a water storage tank on the permeable portion constructed through the second step;
And a fourth step of covering the upper part of the reservoir,
Wherein the third step includes providing a rainwater infiltration pipe having a rainwater induction pipe from the inside of the water storage tank through the water permeable portion,
Wherein the rainwater infiltration pipe has a tubular shape and includes at least one inflow portion communicating with the inside of the water storage tank and at least one discharge portion communicating with the outside of the water storage tank to penetrate the water storage portion stored in the water storage tank, So as to store rainwater below the inflow section,
Wherein the rainwater induction pipe is branched from the inflow portion and the discharge portion of the rainwater infiltration pipe and extends toward the upper portion higher than the rainwater infiltration pipe and guides the rainwater stored in the water storage tank to the rainwater infiltration pipe. Storage and Underground Penetration of Mixed Water Storage System. A method of constructing a combined stormwater storage and rainwater infiltration system according to claim 2,
A first step of excavating and digging the ground;
A second step of constructing a permeable portion at the bottom of the tterifier space formed through the first step;
A third step of constructing a water storage tank on the permeable portion constructed through the second step;
And a fourth step of covering the upper part of the reservoir,
Wherein the third step includes providing a discharge pipe communicating with the inside of the water storage tank and providing an external rainwater guide pipe through the discharge pipe and the water discharge unit. .
A method of constructing a combined stormwater storage and rainwater infiltration system according to claim 3,
A first step of excavating and digging the ground;
A second step of constructing a permeable portion at the bottom of the tterifier space formed through the first step;
A third step of constructing a water storage tank on the permeable portion constructed through the second step;
And a fourth step of covering the upper part of the reservoir,
Wherein the built-in rainwater infiltration pipe is disposed at a lower height than a discharge pipe connected to the water storage tank, and a bottom portion of the built-in rainwater infiltration pipe is connected to the bottom of the water storage tank And the rainwater is stored in the rainwater storage tank.

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