KR100802994B1 - Large size rainwater undercurrent set and it's construction method - Google Patents

Abstract

A large-sized rainwater retention basin and the construction method are provided to cut down on the manufacturing cost by simplifying the shape of a large-sized rainwater retention basin, not to cause any convenience to conveyance by distributing weight evenly, to keep and carry effectively in a narrow site of the downtown area by supplying the required materials at a suitable time, and to have structural stability. A large-sized rainwater retention basin comprises one or more central walls composed of a base plate formed in a rectangular parallelepiped shape, columns formed on two ends of the base plate to the fixed thickness in an upward direction and a coping located at the top of the column perpendicularly to two ends of the base plate to the fixed width and thickness, right and left side walls(2') composed of a bottom plate formed in a rectangular parallelepiped shape and a wall formed vertically to the one end of the bottom plate, a floor slab closed with cast-in-place concrete or PC members to finish up openings between the base plates of the central walls installed continuously, or, openings between the bottom plate of the right and left side walls and the base plates of the central walls, door type right and left ceiling slabs(14,14') closing an upper space of the central walls adjacent to the right and left side walls installed continuously and a door type central ceiling slab(15) closing an upper space of the central walls installed continuously, and front and rear finishing walls(16) closing front and rear openings of a boxed shaped block composed of the right and left side walls, the central walls, the floor slabs, and right, left and central ceiling slabs. A construction method of a large-sized rainwater retention basin comprises the steps of: excavating the foundation ground, leveling the ground, and paving and compacting a rubble foundation layer; installing rails or H-beams on a concrete foundation to keep the precise location and level on the rubble foundation layer; installing right and left side walls and central walls continuously on the rails or the H-beams in the vertical direction, and tensing and anchoring using PC steel bars; completing a floor slab by finishing with cast-in-place concrete or PC members to close openings of a base plate; assembling door type right and left ceiling slabs installed continuously with a door type central ceiling slab for closing an upper space of the central walls; assembling front and rear finishing walls for closing front and rear openings of a box shaped block composed of the right and left side walls, the central walls, the floor slabs, and right, left and central ceiling slabs; installing an elastic sealing member to the inside of a joint between the assembled members, installing a water cutoff sheet or a permeable sheet to an external wall of a retention basin and refilling with a fine sane layer, and installing an inspection hole and a ventilation hole on the upper part of the retention basin; and installing a joint structure of an inlet and an outlet, covering the upper part of the retention basin with soil and installing necessary facilities.

Description

Large size rainwater undercurrent set and it's construction method}

1 is an external perspective view illustrating a large storm storage tank according to the present invention,

2 is an internal perspective view illustrating a large storm reservoir according to the present invention;

3 is a top and bottom plan view illustrating a large storm storage tank according to the present invention,

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a cross-sectional view taken along the line B-B of FIG.

6 is a cross-sectional view taken along the line C-C of FIG.

7 is a perspective view showing a central wall of a large storm storage tank according to the present invention,

8 is a perspective view showing a side wall of a large storm storage tank according to the present invention;

9 is a perspective view showing a central ceiling slab of a large storm storage tank according to the present invention;

10 is a perspective view showing a left ceiling slab of a large storm storage tank according to the present invention;

11 is a detailed view showing a steel rod fastening of the large rainwater storage tank according to the present invention,

12 is a detailed view showing a wall joint of a large storm storage tank according to the present invention,

Figure 13 is a detailed view showing the web connection of the large storm reservoir according to the present invention,

Figure 14a is a plan view showing a fastening state between the slab of the large storm storage tank according to the present invention,

Figure 14b is a cross-sectional view showing a fastening state between the slab of the large storm storage tank according to the present invention,

15 is a detailed view showing a bottom slab joint of a large storm storage tank according to the present invention,

16 is a bending moment diagram showing the bending moment of the large storm storage tank according to the present invention,

17 is an exemplary view showing a side wall of an infiltration reservoir as an embodiment of the present invention;

18 is a perspective view showing a closing wall of a large storm storage tank according to the present invention,

19 is an exemplary view showing a loading state when transporting the constituent members of a large storm storage tank according to the present invention,

20 is a perspective view 1 showing a conventional block-type block of rainwater storage tank;

21 is a perspective view showing a conventional storm reservoir 2,

22 is a perspective view of a conventional storm reservoir 3,

23 is a perspective view showing a conventional storm storage tank 4.

24 is a bending moment diagram showing a bending moment of a conventional storm storage tank.

Explanation of symbols on the main parts of the drawing

1: center wall 2: left wall

2 ': right wall 6: bottom plate

7: pillar 8: coping

9: bottom plate part 10: wall

11: opening 12: opening

13: floor slab 14: door type left ceiling slab

14 ': Moon-shaped right ceiling slab 15: Moon-shaped center ceiling slab

16: front closure wall 16 ': rear closure wall

17: web 18: web

19: Web 20: Jointed concrete

21: Insert nut 22: Bolt box

23: pressure plate 24: bolt

25: no shrinkage mortar 26: horizontal joint

27: rebar 28: rebar

29: elastic sealing material 30: watertight packing material

31: Slit for penetration 32: Suction preventing material

33: rainwater inlet 34: raceway

35: Settlement 36: overflow wall

37: outlet 38: check opening

39: ventilator 40: ladder

41: PS steel bar 42: PS connector

43: anchorage 45: H-beam

46: opening 47: opening

A: foundation rubble B: foundation concrete

The present invention relates to a large rainwater storage tank and a construction method thereof, and particularly, a large underground rainwater storage tank or a large infiltration large rainwater storage tank for temporarily storing large rainwater in a heavy rain and releasing it to the outside or slowly penetrating underground. It relates to the construction method thereof.

Recently, with the development of the city, various structures such as buildings, asphalt, concrete pavement, parking lot facilities, etc. are rapidly increased, and rainwater flows directly into the rivers through rainwater pipes, flooding the rivers, decreasing the moisture retention of the soil, and depleting the groundwater. Such changes in the natural water cycle have led to a marked increase in the likelihood of heavy rainfall or drought caused by climate change.

The disasters such as urban flooding, heat island phenomenon, water exhaustion and ground subsidence are caused by development-oriented policies that ignore the natural environment in order to pursue a comfortable and pleasant life.

Therefore, in the 21st century, continuous development for the coexistence between the natural world and human beings is required, and consequently, rainwater is penetrated or stored in the basement to be used as a new source of water before it flows into the stream. As part of efforts to recover the water circulation system, technology development has been carried out for three methods: storm water storage tank, infiltration storage tank, and storage infiltration storage tank.

Hereinafter, the patents for the technology as described above will be described.

Japanese Patent Application Laid-Open No. 9-279669, as shown in FIG. 20, is a concrete temporary block used for construction of a rainwater temporary storage tank and its construction, and integrally connects upper and lower sides of the side plates facing each other with a necessary space with a connecting plate. At the same time, a first unit column is formed by connecting a door-shaped block made of concrete connected to both end portions or intermediate portions of the lower sides of the two side plates in a load bearing beam in communication with the longitudinal ends. At the same time, the second unit column is formed by supporting both end portions of the lid in a number formed in the upper part of the outer surface of the opposite side plate of the adjacent first unit column, thereby forming the second unit column in parallel. At the same time, the end of each row of units is closed with a single-sided plate, and an opening is provided in the necessary side plate of the door-shaped block forming the parallel bulkhead. Further, in the required portion in the longitudinal direction of the parallel body, a continuous sand exclusion port is provided at the bottom portion of the parallel body, and the sand-sedimentation retreating pit is delivered to the required portion of the exclusion port. And placing bottom concrete at the bottom of each of the unit rows, and forming a bottom inclined downward toward the exclusion or retreat pit, and at the same time, inclining the bottom of the exclusion pit downward toward the retirement pit. It is done.

In addition, it is a concrete door block made of concrete used to build the above-mentioned excellent temporary storage tank, connecting the upper and the left side of the side plates facing each other at the required intervals as a connecting plate at the same time, both ends or the middle of the lower mutual of the two side plates. The part is connected by the load bearing girders, and at the same time, the upper part of the side plate protrudes a male part supporting the end portion of the lid placed between adjacent door-shaped blocks, and at the same time, an opening is provided in at least one direction of the two side plates.

Japanese Patent Laid-Open No. 6-272291 is an excellent storage tank, as shown in Fig. 21, wherein the horizontal girders are erected at right angles between the upper end portions of the pillars which are erected at right angles to the front, rear, left and right corners of the bottom plate portion, A main body block integrally formed by leaving an upper surface opening between the horizontal girders; The top plate part is oriented at right angles to the upper end of one side plate part, and the bottom plate part is oriented at right angles to the lower end part of this side plate part, and the water wall part connecting the edges of the top plate part and the bottom plate part to both side edges of the side plate part is at right angles. Peripheral block of the longitudinal cross-section integral to the speaker; It consists of a corner block formed by integrally forming two side plate portions at right angles, and speaking the bottom plate portion at right angles to the lower end of the side plate portion, and vertically speaking the top plate portion at the upper end portion of the side plate portion. Each of the front, rear, left, and right side openings of the block group for the main body portion installed in the main compartment is closed by the peripheral block which is opened, and the space between the end of the row of the peripheral block in the front and rear direction and the end of the row of the peripheral block in the left and right direction is used as the corner block. It is characterized in that the closing of the upper surface opening of the block for the main body portion with the lid mounted on each horizontal girders of the front, rear, left and right, and the components are fixed to each other.

As shown in Fig. 22, Japanese Patent Laid-Open No. 6-299591 is an excellent storage tank, in which a support plate portion is orthogonal to the middle point in the left and right directions of the bottom plate portion and the top plate portion having an equal or approximate planar shape. A main section block having a longitudinal section I-shape adjacent to and spaced apart from the left and right directions; Peripheral block of longitudinal cross-section shape which adjoins the bottom plate part at right angle to the lower end part of one side plate part, and protrudes the top plate part at right angle to the upper end part of this side plate part, and is installed adjacent to one line; A corner block for speaking the two side plate portions at right angles, speaking the bottom plate portion at right angles to the lower end portion of this side plate portion, and speaking the top plate portion at right angles to the upper end portion of the side plate portion; An intermediate bottom plate of a precast or spot casting for closing the bottom opening between the bottom plate portions of the left and right body block; Front and back of the flat block group which consists of an intermediate | middle upper plate which can be mounted in the edge part of the upper surface plate part of the left-right body part block, and closes the upper surface opening part between this upper surface plate part, and consists of a body part block, an intermediate bottom plate, and an intermediate top plate. The side openings of the side and the left and right side openings are closed in the rows of the peripheral blocks, and the space between the ends of the rows of the peripheral blocks in the front and rear directions and the ends of the rows of the peripheral blocks in the left and right directions is closed by the corner blocks. The elements are fixed to each other.

Republic of Korea Patent No. 10-0485742, as shown in Figure 23, as an excellent storage tank, the pillars are provided at right angles to each of the four front, rear, left and right corners of the top plate and the bottom plate at right angles, respectively, Openings are formed, and through holes are formed in the upper and lower portions of the pillar, respectively, a plurality of through the grooves are formed in the inner side, while a plurality of grooves for inserting the couple guide pins are formed on the outer surface and ; Peripheral block having the same configuration as the block for the main body, except that at least one of the four surfaces has a closed shape; And a slab coupled to the peripheral block by a screw member extending outward from the peripheral block so as to close the opening of the peripheral block facing outward when assembled.

Conventional storage tank-related patents made of the above-described configuration is characterized in that the main body block used in most storage tanks as a large weight.

Therefore, in order to easily manufacture, transport, and assemble these blocks, it is well known that the shape is simple and the weight is divided in a balanced manner for each member to facilitate handling and structural stability.

Conventional methods made of the above-described configuration have the following problems.

First, since the conventional body block has been enlarged, it is subject to strict restrictions on the loading height and loading weight according to the road traffic law according to the size (height) and weight of the body block. If you want to build a large storage tank above there is a problem that requires a separate alternative.

Second, when the storage tank is limited by the construction site, there is a problem that the height and the span of the storage tank cannot be easily adjusted according to the design capacity of the storage tank. There is a problem in that the economic disadvantage, such as to take.

Third, the conventional methods are expensive manufacturing cost of the mold due to the complicated shape of the block, in the case of the box-shaped block, expensive special installation for the assembly and disassembly of the internal mold, and a lot of time and effort due to assembly and disassembly There is a problem that the economy is halved because of this.

Accordingly, the present invention has been made to solve the problems described above, in the structure having a cross section consisting of a side wall, a slab and a center wall, the weight of the three members are balanced, easy to transport and handle By dividing into one cross section and changing the shape of slab from simple beam structure to door-shaped slab structure, it is easy to cope with the height and span expansion, and to simplify the shape of the block to reduce the production cost and to distribute the weight in a balanced manner. It provides a large storm storage tank and its construction method that can be effectively stored and transported in a narrow site in the downtown area and have structural stability without being interrupted by transportation and supplying necessary members according to the construction order in a timely manner. There is a purpose.

The large rainwater storage tank according to the present invention for achieving the above object is spaced apart from each other by a predetermined distance from the bottom plate portion made of a rectangular parallelepiped shape, and both ends on the front and rear center lines of the bottom plate portion, are formed integrally in the vertical direction of the bottom plate portion to a predetermined thickness A center wall formed of at least one pillar, and at least one front and rear ends of the pillar and positioned at both ends and a vertical surface of the bottom plate portion, and having at least one coping formed integrally with a predetermined width and thickness; Left and right side walls formed of a rectangular parallelepiped shape, a wall formed vertically integrally at one end of the bottom plate portion, and sidewalls continuously installed at the openings or the left and right ends between the bottom plate portions of the central walls continuously installed. A bottom slab closed by the site-casting concrete or PC member to close the opening between the bottom plate portion and the bottom plate portions of the central walls; A door-shaped left and right ceiling slab for closing an upper space between successive left and right side walls and adjacent center walls and a door-shaped central ceiling slab for closing an upper space between successive center walls; The front and rear finishing walls for closing the front and rear openings of the flat box-shaped block group composed of the left and right side walls, the center walls and the bottom slabs, and the left and right sides of the door, and the ceiling ceiling slabs are assembled together. .

In addition, a large storm storage tank construction method according to the present invention for achieving the above object is the first step of excavating the foundation ground, and then laying and chopping the foundation rubble; A second step of installing a rail or H-shaped steel on the foundation concrete to maintain a precise position and level on the foundation rubble layer; A third step of continuously installing the left and right side walls and the center walls in the front and rear directions on the rail or the H-shaped steel, and assembling by tensioning and fixing using a PS steel bar; A fourth step of finishing the floor slab by finishing with site-cast concrete or PC member to close the bottom plate opening; A fifth step of assembling and installing the door-shaped center ceiling slabs to close the upper space between the door-shaped left and right ceiling slabs and the center walls which are continuously installed; A sixth step of assembling and installing the front and rear finishing walls in order to close the front and rear openings and the like of the flat box-shaped block group installed in the above order; An elastic sealing material is installed on the inner surface of the joints of the assembled members, and on the outer wall of the storage tank, a seat sheet or a permeation sheet is installed according to the purpose of the storage tank, and then the backfill is filled with a fine sand layer, and a check hole and a ventilation hole are installed on the storage tank. step; After completion of the inlet and outlet junction facilities, the storage tank is constructed by sequentially performing the eighth step of covering the top of the reservoir and installing the necessary facilities.

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

1 is an external perspective view illustrating a large storm reservoir according to the present invention, Figure 2 is an internal perspective view illustrating a large storm reservoir according to the present invention, Figure 3 is a top and bottom plan view illustrating a large storm reservoir according to the present invention. 4 is a cross-sectional view taken along line AA of FIG. 3, FIG. 5 is a cross-sectional view taken along line BB of FIG. 3, FIG. 6 is a cross-sectional view taken along line CC of FIG. 3, and FIG. 7 shows a central wall of a large storm storage tank according to the present invention. 8 is a perspective view showing a side wall of the storm water storage tank according to the present invention, Figure 9 is a perspective view showing a central ceiling slab of a large storm water storage tank according to the present invention, Figure 10 is a large storm water storage tank according to the present invention Is a perspective view of the left ceiling slab.

As shown in these drawings, the rainwater storage tank according to the present invention is spaced apart from each other by a predetermined distance from the bottom plate portion 6 having a rectangular parallelepiped shape and both ends on the front and rear center lines of the bottom plate portion 6, and having a predetermined thickness. The pillar 7 formed integrally upward in the vertical direction of (6), and both front and rear ends at the upper surface of the pillar 7 are located on both ends and the vertical surface of the bottom plate portion 6, integrally with a predetermined width and thickness. A central wall (1) composed of at least one of copings (8) formed; Left and right side walls (2, 2 ') composed of a bottom plate portion (9) having a rectangular parallelepiped shape, a wall (10) formed integrally at one end of the bottom plate portion (9), and a central wall provided continuously Between the bottom plate part 6 of the bottom plate part 9 and the center wall 1 of the left and right side walls 2 and 2 'which are continuously installed in the opening part 11 or right and left ends between the bottom plate parts 6 of (1). A bottom slab 13 closed by the site-casting concrete or PC member to close the opening 12 of the; Between the door-shaped left and right ceiling slabs 14 and 14 'for closing the upper space between the adjacent left and right side walls 2 and 2' and the adjacent central walls 1 and the central wall 1 to be continuously installed. A door-shaped central ceiling slab 15 for closing the upper space; A flat box-shaped block group consisting of the left and right side walls (2, 2 '), the center wall (1) and the bottom slabs 13, and the door-shaped left and right, center ceiling slabs (14, 14', 15) The front and rear finishing walls 16 and 16 'for closing the front and rear openings of are fastened to each other and assembled.

Here, the wall 10 of the left and right side walls (2, 2 ') is lower than the upper surface of the coping (8) of the central wall (1) in order to easily cope with the change in size, such as the span or height due to the change in storage capacity Find and cut the point at which the bending moment is 0, and the height of the upper and lower side walls (2, 2 ') forms a step between front and rear, so that the binding with the door-shaped left and right ceiling slabs (14, 14') mounted on the upper part is tight. The left and right side walls (2, 2 ') are made in the same shape to change the front and rear directions, and are configured to serve as left and right sides.

In addition, the width of the coping 8 of the center wall 1 is the thickness of the inner web 17 of the door-shaped left and right ceiling slabs 14, 14 'and the web 19 of the door-shaped central ceiling slab 15 according to the upper loading conditions. ) Is structurally safe and has sufficient width in consideration of thickness and width of adjacent concrete 20 between adjacent door-shaped left and right and central ceiling slabs 14, 14 ′, 15, and the width of the column 7 of the central wall 1. Before and after the openings 46 and 47 corresponding to the difference between the length of the bottom plate 6 and the width of the column 7 are formed, respectively, so as to be in charge of the water passage function.

In addition, a step is formed between the front and rear surfaces so that the shape of the lower surface of the outer web 18 of the door-shaped left and right ceiling slabs 14 and 14 'may be tightly bound on the upper surface of the left and right side walls 2 and 2'. The thickness of 18 is equal to the thickness of the wall 10 of the left and right side walls 2 and 2 ', and the height of the webs 17 and 18 of the door-shaped left and right ceiling slabs 14 and 14' is changed according to the storage capacity change. Correspondingly, the door-shaped left and right ceiling slabs 14 and 14 'are horizontally installed.

In addition, the door-shaped central ceiling slab 15 is formed to include a left and right web 19 having the same height, the upper surface is horizontally installed at the same height as the door-shaped left and right ceiling slabs 14, 14 '.

And a vertical joint between the bottom of the webs 17, 18 and 19 of the door-shaped left and right ceiling slabs 14 and 14 'and the central ceiling slabs 15 and the top and bottom surfaces of the left and right side walls 2 and 2' or the center walls 1; In the sub-joint, the insert nut 21 is fixedly fixed in the joint upper surface member, and when the joint is inserted, the bolt box 22 is embedded in the member, and the pressure nut 23 is upwardly installed in the bolt box 22. The bolt 24 is fastened to the insert nut 21 and the inside of the bolt box 22 is filled with the non-shrink mortar 25.

Alternatively, the vertical direction between the bottom surface of the web 17, 18, 19 of the door-shaped left and right ceiling slab 14, 14 'and the central ceiling slab 15 and the upper surface of the left and right side walls (2, 2') or the center wall (1) In fastening the joint, the bolt box 22 is fixedly fixed in the joint upper surface member, and when the joint is joined, the insert nut 21 is embedded in the member, and the bolt 24 is fastened downward to the insert nut 21 and Fill the shrinkage mortar (25).

The longitudinal horizontal joints 26 between the door-shaped left, right, and center ceiling slabs 14, 14 ', and 15 are spaced apart from adjacent door-shaped left, right, and center ceiling slabs 14, 14', and 15 at predetermined intervals. The roof reinforcement 27 is installed in the transverse direction, the loop reinforcement 27 is bound with the longitudinal reinforcement 28, and the joint concrete 20 is poured into the binding portion.

In addition, a transverse joint water treatment hole is provided between the members, an elastic sealing material 29 is installed inside the wall 10, and an external packing 10 is installed on the outside of the wall 10. .

In addition, a penetration slit 31 having a predetermined size is formed on front and rear surfaces of the left and right side walls 2 and 2 'to allow rainwater inside the storage tank to penetrate into the underground soil layer outside the storage tank. ), An anti-sucking material 32 is installed to prevent the external soil from entering the inside of the storage tank, and an infiltration type storage tank is formed.

In addition, under favorable ground conditions under which the groundwater level is located below the bottom slab 13, a U-shaped raceway 34 is installed from the bottom point under the rainwater inlet 33, and the settlement 35 and the overflow wall 36 are provided. The discharge is discharged to the outlet 37 via the discharge of fresh water from which sand, wood, and dirt are removed.

In addition, a plurality of check holes 38 and vent holes 39 are installed on the door-shaped left and right ceiling slabs 14 and 14 ', and a ladder 40 for entering and exiting the check hole 38 is installed.

In addition, a plurality of front and rear PS connecting holes 42 capable of tension-fixing the PS steel rods 41 on the respective unit members for solid binding of the left and right side walls 2, 2 'and the center wall 1. And anchorages 43 are formed.

In addition, the PS connection holes 42 and the fixing member 43 which can tension-fix the plurality of PS steel bars 41 in the left and right directions of the door-shaped center ceiling slab 15 and the door-shaped left and right ceiling slabs 14 and 14 '. These are formed in the front-rear direction of each door-shaped left and right, center ceiling slab 14,14 ', 15.

Hereinafter, the construction of the storm storage tank according to the present invention having the configuration as described above.

Excellent storage tank construction method according to the present invention is the first step of excavating the foundation ground, even after laying the foundation rubble layer (A); A second step of installing a rail or H-shaped steel 45 on the foundation concrete B to maintain a precise position and level on the foundation rubble layer A; A third step of continuously installing the left and right side walls (2, 2 ') and the center wall (1) in the front and rear directions on the rail or the H-shaped steel (45), and using a PS steel bar (41) to tension and fix the assembly; A fourth step of finishing the floor slab 13 by finishing the cast-in-place concrete or PC member to close the bottom plate openings 11 and 12; A fifth step of assembling and installing the door-shaped central ceiling slabs 15 for closing the upper space between the door-shaped left and right ceiling slabs 14 and 14 'which are continuously installed and the central walls 1; A sixth step of assembling and installing the front and rear finishing walls 16 and 16 'to close the front and rear openings and the like of the flat box-shaped block group installed in the above order; After installing the elastic sealing material 29 on the inner surface of the joints of the assembled members, and installing the water repellent sheet or the permeation sheet on the outer wall of the storage tank according to the purpose of the storage tank, it is backfilled with a fine sand layer and the check hole 38 and the ventilation on the storage tank top. A seventh step of installing the ball 39; After completing the inlet 33 and the outlet 37 joining facility, the storage tank is constructed by sequentially performing the eighth step of covering the upper part of the storage tank and installing the necessary facilities.

The large rainwater storage tank according to the present invention having the configuration and construction as described above is composed of side walls (2, 2 '), cross-section consisting of the door-shaped left and right, the center ceiling slab (14, 14', 15), the center wall (1) In the structure having a weight distribution of the three members in a balanced manner to divide the member into a cross section for easy transportation and handling, and the shape of the door ceiling left and right, the center ceiling slabs 14, 14 ', 15 in a simple beam It is a large storm storage tank that can be changed to the left and right, center ceiling slabs (14, 14 ', 15) to increase structural efficiency and easily respond to height and span expansion requirements.

Therefore, the present invention reduces the manufacturing cost by simplifying the shape of the large rainwater storage tank, distributes the weight in a balanced manner, does not interfere with transportation, and supplies the required members according to the construction order in a timely manner within the narrow site of the downtown. It is an effective large storage tank shape and easy assembly installation method that enables effective storage and transportation, and has structural safety.

As described above, the large storm storage tank and the construction method thereof according to the present invention has the following effects.

First, the present invention can efficiently use rainwater through rainwater storage tank, it is possible to save the use of tap water, there is an advantage that can be prepared for water demand according to the population increase of the city by reducing the amount of water supply.

Second, the present invention by storing a certain amount of rain, it can be utilized as the cleaning of the dry season, landscape management, public water, fire water, and the like, there is an advantage that can also be used as emergency water for disinfection.

Third, the present invention adopts a door-type slab structure having a web in order to maximize the storage capacity in a narrow site in the downtown area, and thus has a good workability and economical effect in manufacturing, transportation, and installation.

Claims (15)

A pillar 7 formed in a rectangular parallelepiped shape and a pillar 7 which is spaced apart from each other by a predetermined distance from both ends on the front and rear center lines of the bottom plate portion 6 and is integrally formed in the vertical direction of the bottom plate portion 6 at a predetermined thickness. And, both ends of the front and rear at the upper surface of the pillar 7 is located on both ends and the vertical surface of the bottom plate portion 6, consisting of at least one or more consisting of a coping (8) integrally formed with a predetermined width and thickness A central wall 1; Left and right side walls (2, 2 ') composed of a bottom plate portion (9) having a rectangular parallelepiped shape and a wall (10) integrally formed at one end of the bottom plate portion (9); The bottom plate portion 9 and the center wall 1 of the left and right side walls 2 and 2 'which are continuously installed at the opening 11 between the bottom plate portions 6 of the central wall 1 which are continuously installed or at both ends. A bottom slab 13 which is closed by in-situ concrete or PC member to close the opening 12 between the bottom plate portions 6; Between the door-shaped left and right ceiling slabs 14 and 14 'for closing the upper space between the adjacent left and right side walls 2 and 2' and the adjacent central walls 1 and the central wall 1 to be continuously installed. A door-shaped central ceiling slab 15 for closing the upper space; A flat box-shaped block group consisting of the left and right side walls (2, 2 '), the center wall (1) and the bottom slabs 13, and the door-shaped left and right, center ceiling slabs (14, 14', 15) Large excellent storage tank, characterized in that the front and rear closing walls (16, 16 ') for closing the front and rear openings of the assembly are fastened to each other. The method of claim 1, The wall 10 of the left and right side walls 2, 2 'is bent at a position lower than the upper surface of the coping 8 of the central wall 1 in order to easily cope with specification changes such as span and height due to changes in storage capacity. Find and cut the point where the moment is zero, and the height of the upper and lower side walls (2, 2 ') forms a step between the front and rear, so that the binding with the door-shaped left and right ceiling slabs (14, 14') placed on the upper side is made tight. , Large left and right walls (2, 2 ') is made in the same shape by changing the front and rear direction, the large excellent storage tank, characterized in that it is configured to combine. The method of claim 1, The width of the coping 8 of the central wall 1 is the thickness of the inner web 17 of the door-shaped left and right ceiling slabs 14 and 14 'and the thickness of the web 19 of the door-shaped central ceiling slab 15 according to the upper loading conditions. And a structurally safe enough width in consideration of the width of the joint concrete 20 between the adjacent door-shaped left and right and the center ceiling slabs 14, 14 ', 15, and before and after the pillar 7 of the center wall 1 A large storm storage tank, characterized in that the openings (46, 47) corresponding to the difference between the length of the bottom plate portion (6) and the width of the column (7) are formed so as to be responsible for the water passage function in the storage tank. The method of claim 1, A step is formed between the front and rear surfaces so that the shape of the lower surface of the outer web 18 of the door-shaped left and right ceiling slabs 14 and 14 'can be tightly bound on the upper surface of the left and right side walls 2 and 2', and the outer web 18 ) Is formed to have the same thickness as the wall 10 of the left and right side walls 2 and 2 ', and the heights of the webs 18 and 17 of the door-shaped left and right ceiling slabs 14 and 14' correspond to changes in storage capacity. And, the door-shaped left and right slab (14, 14 ') is a large storm storage tank, characterized in that installed horizontally. The method of claim 1, The door-shaped central ceiling slab 15 is formed to include a left and right web 19 having the same height, the upper surface is characterized by being installed horizontally at the same height as the door-shaped left and right ceiling slabs 14, 14 ' Reservoir. The method according to any one of claims 1 to 5, Vertical joint between the bottom of the web 17, 18, 19 of the door-shaped left and right ceiling slab 14, 14 'and the door-shaped center ceiling slab 15 and the upper surface of the left and right side walls 2, 2' or the center wall 1 In the sub-tightening, the insert nut 21 is fixedly fixed in the joint upper surface member, and when the joint is inserted, the bolt box 22 is embedded in the member, and the pressure nut 23 is upwardly upward in the bolt box 22. A large storm storage tank, characterized in that the bolt 24 is fastened to the insert nut 21 and the inside of the bolt box 22 is filled with non-contraction mortar 25. The method according to any one of claims 1 to 5, Vertical joint between the bottom of the web 17, 18, 19 of the door-shaped left and right ceiling slab 14, 14 'and the door-shaped center ceiling slab 15 and the upper surface of the left and right side walls 2, 2' or the center wall 1 In the sub-tightening, the bolt box 22 is fixedly fixed in the joining face member, and when joined, the insert nut 21 is embedded in the member, and the bolt 24 is fastened downward to the insert nut 21, Large storm reservoir, characterized in that to fill the mortar (25). The method according to any one of claims 1, 4 and 5, The longitudinal horizontal joints 26 between the door-shaped left, right, and center ceiling slabs 14, 14 ', and 15 are transversely disposed at predetermined intervals from adjacent door-shaped left, right, and center ceiling slabs 14, 14', and 15, respectively. The roof reinforcement 27 is installed, the loop reinforcement 27 is bound with the longitudinal reinforcement 28, and a large rainwater storage tank, characterized in that the joint portion is placed in the joint portion. The method according to any one of claims 1, 2, 4, and 5, The horizontal left and right, the horizontal joint between the center ceiling slab (14, 14 ', 15) is provided, the elastic sealing material 29 is installed inside the wall 10, the outside of the wall 10 Large excellent storage tank, characterized in that the installation for the water supply packing material (30). The method according to claim 1 or 2, A penetration slit 31 having a predetermined size is formed on front and rear surfaces of the left and right side walls 2 and 2 'to allow rainwater inside the storage tank to penetrate into the underground soil layer outside the storage tank. Large excellence storage tank, characterized in that the outflow prevention material 32 is adhered to the external exposed surface to prevent the external soil flows into the storage tank, the permeation storage tank is formed. The method of claim 1, Under favorable ground conditions under which the groundwater level is located below the bottom slab 13, a U-shaped waterway 34 is installed from the bottom point under the rainwater inlet 33, and passes through the settlement 35 and the overflow wall 36. Large discharge reservoir, characterized in that to discharge the fresh water to remove the sand, trees, dirt, and the like introduced to the outlet 37. The method according to any one of claims 1 to 5, A plurality of check holes 38 and vent holes 39 are installed on the door-shaped left, right, and center ceiling slabs 14, 14 ′, 15, and a ladder 40 for entry and exit is installed inside the check hole 38. A large storm storage tank characterized by the above. The method according to any one of claims 1 to 5, The left and right side walls (2, 2 ') and the center wall (1), the left and right side walls (2, 2') and the center wall (1) for solid binding of the door-shaped left and right, central ceiling slabs (14, 14 ', 15) ), The door-shaped left and right, and the central ceiling slabs 14, 14 ', 15 are characterized in that a plurality of front and rear PS connecting holes 42 and fixing holes 43 for tension fixing the PS steel bars 41 are formed. Large excellent reservoir. The method according to any one of claims 1 to 5, PS connection holes 42 and anchorages 43 for tension-fixing the plurality of PS steel rods 41 in the horizontal direction of the door-shaped center ceiling slab 15 and the door-shaped left and right ceiling slabs 14 and 14 ' Large rainwater storage tank, characterized in that formed in the horizontal direction of the left and right, the central ceiling slab (14, 14 ', 15). A first step of digging the foundation ground, selecting and laying the foundation rubble layer (A); A second step of installing a rail or H-shaped steel 45 on the foundation concrete B to maintain a precise position and level on the foundation rubble layer A; A third step of continuously installing the left and right side walls (2, 2 ') and the center wall (1) in the front-rear direction on the rail or the H-shaped steel, and assembling by tensioning and fixing using a PS steel bar (41); A fourth step of finishing the floor slab 13 by finishing with the cast-in-place concrete or PC member to close the bottom plate openings 11 and 12; A fifth step of assembling and installing the door-shaped left and right ceiling slabs 14 and 14 'which are continuously installed and the door-shaped center ceiling slabs 15 for closing the upper space between the center walls 1; A sixth step of assembling and installing the front and rear finishing walls 16 and 16 'to close the front and rear openings and the like of the flat box-shaped block group installed in the above order; After installing the elastic sealing material 29 on the inner surface of the joints of the assembled members, and installing the water repellent sheet or the permeation sheet on the outer wall of the storage tank according to the purpose of the storage tank, it is backfilled with a fine sand layer and the check hole 38 and the ventilation on the storage tank top. A seventh step of installing the ball 39; After completion of the inlet (33) and outlet (37) joining facilities, the eighth step of covering the top of the storage tank and installing the necessary facilities in order to construct a storage tank, characterized in that the construction of the storage tank.

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