KR100789171B1 - A water tank, manufacturing method thereof, and using method thereof - Google Patents

Abstract

A water tank, a construction method and a repair method of a water tank are provided to secure excellent watertightness with low expenses and to keep water in store sanitarily by attaching SMC panels having excellent water resistance and corrosion resistance to the inside of a concrete wall having a water containing space and sealing up the SMC panels dually. A water tank is formed in a concrete structure for containing large capacity water inside and equipped with a rectangular water containing space(10a) between each side and bottom of a concrete wall(10), wherein the inside of the concrete wall with the water containing space is covered with plural SMC(sheet molding compound) panels(20). In addition, the water tank is equipped with a water leakage prevention device to prevent leakage of water between the SMC panels, and the water leakage prevention device includes a cover member(60) made of FRP(fiber glass reinforced plastic) having excellent waterproofing capacity and weighing light and attached to the outside of the SMC panel by liquefied resins to cover a gap between the SMC panels, and fillers filled between the adjacent SMC panels in the type of paste made by mixing liquefied resins to stone powder using calcium carbonate as a chief ingredient to seal up the space between the SMC panels and to increase the binding strength of the SMC panels. A construction method of a water tank comprises the steps of: forming a concrete structure having a water containing space by placing concrete to a form, thereby forming a concrete wall; attaching plural SMC panels to the inside of the concrete wall and sealing up the space between a fastening hole and an anchor bolt dually using a waterproof packing and a waterproof cap(52); and filling up a filling groove between the SMC panels with fillers and covering the fillers with a cover member, thereby sealing up the space between the SMC panels dually.

Description

A water tank, manufacturing method and repair method

1 is a cross-sectional view showing a part of the structure of the water tank according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of the fastening structure of the SMC panel and the anchor bolt in FIG.

3 is an exploded cross-sectional view of the structure of FIG.

Figure 4 is a cross-sectional view taken from the direction of the arrow after cutting along the line A-A of FIG.

5 is a cross-sectional view showing the structure of the state before the screening member and the filler is formed in FIG.

* Description of the symbols for the main parts of the drawings *

10: concrete wall 10a: water receiving space

20: SMC Panel 21: Fastening Hole

22: Chamfered surface 23: Filling groove

30: anchor bolt 41: nut

42: washer 51: waterproof packing

52: waterproof cap 60: cover member

70: filler

The present invention relates to a water tank, and a construction method and a repair method thereof, and more particularly, to a water tank provided for excellent watertightness and a hygienic state through low cost, and a construction method and a repair method thereof. will be.

In general, a water tank that stores a large amount of water is mostly made of a concrete structure, usually provided as a single facility or installed as a water supply facility in the basement of a building.

The water chill forms an exterior of a concrete wall made of concrete, and the space between each side surface and the bottom surface of the concrete wall forms a water receiving space of a predetermined size.

On the other hand, such a water tank has a structure in which the inner surface of the concrete wall is in direct contact with the water accommodated in the water receiving space. In the case of concrete, water resistance and corrosion resistance are weak, so that the water tank of the water tank is easily eroded and corroded and deteriorates the watertightness of the water tank. There is a risk of making.

Therefore, in recent years, the water tank provided with most concrete structures is strengthening watertightness by coating epoxy on the inner surface of the water receiving space to improve water resistance and corrosion resistance.

However, this epoxy coating is often peeled off and requires periodic repainting, which leads to excessive maintenance cost of the water tank, and if the epoxy coating is left in a damaged state, moss or sludge inside the water receiving space. As it is attached, a problem occurs that the quality of the water stored in the water receiving space is lowered.

The present invention is to solve such a problem, an object of the present invention relates to a water tank and a construction method and a repair method provided to keep water in a more hygienic state with excellent watertightness through a low cost.

In order to achieve this object, the water tank according to the present invention is provided with a concrete structure having a water receiving space therein, and an inner surface of the concrete wall forming the water receiving space is covered with a plurality of SMC (SHEET MOLDING COMPOUND) panels. It is characterized by.

And the water tank according to the invention is characterized in that it comprises a leakage preventing means for preventing leakage between the SMC (SHEET MOLDING COMPOUND) panel.

In addition, the leakage preventing means is characterized in that it comprises a cover member of the FRP (FIBER GLASS REINFORCED PLASTIC) material provided to cover the gap between the SMC (SHEET MOLDING COMPOUND) panel.

In addition, the leak preventing means further comprises a filler filled between adjacent SMC (SHEET MOLDING COMPOUND) panel, the shielding member is characterized in that it is provided to cover the filler.

In addition, the shielding member is characterized in that bonded to the outer surface of the SMC (SHEET MOLDING COMPOUND) panel through a liquid resin.

In addition, the SMC (SHEET MOLDING COMPOUND) panel is formed with a fastening hole for fastening the anchor bolt, the anchor bolt is inserted into the concrete wall through the fastening hole is inserted into one end of the protruded water space The outer surface is provided with a fastening portion of the other end formed with a spiral for fastening the nut, the SMC (SHEET MOLDING COMPOUND) panel is fixed to the inner wall of the concrete wall through a nut fastened to the fastening portion in the state of the washer, The waterproof packing is fitted to the outer circumference of the anchor bolt between the outer surface of the SMC (SHEET MOLDING COMPOUND) panel and the washer around the fastening hole, and the waterproof cap covering the nut and the fastening part is coupled to the outer surface of the washer space side. It is done.

And the construction method of the water tank according to the present invention comprises the steps of forming a concrete to form a concrete structure having a water receiving space therein by placing concrete in the formwork to form a concrete wall; A plurality of SMC (SHEET MOLDING COMPOUND) panels are attached to the inner surface of the concrete wall forming the water receiving space by using anchor bolts, and sealing between the fastening holes formed in the SMC panel and anchor bolts for fastening the anchor bolts. Panel attaching step to; And a finishing sealing step of sealing between the SMC panels.

In addition, the water tank repairing method according to the present invention is a foreign water in the inner surface of the concrete wall forming the water receiving space to reinforce the inner surface of the concrete wall in the basic water tank provided with a concrete structure having a water receiving space inside the concrete wall Removing foreign substances to remove; A panel attachment step of attaching a plurality of SMC panels to the inner wall of the concrete wall using anchor bolts, and sealing the fastening holes formed in the SMC panel and anchor bolts to fasten the anchor bolts; And a finishing sealing step of sealing between the SMC panels.

Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 shows the structure of a water tank according to the present embodiment.

As shown in FIG. 1, the water tank according to the present embodiment is a water supply facility provided with a concrete structure to accommodate a large amount of water therein, and has a water receiving space 10a having a predetermined size provided in a rectangular shape therein. The water receiving space (10a) is formed through the space between each side and the bottom surface inside the concrete wall (10). Such a water tank may be provided as a single facility or installed in the basement of a building.

In the water tank according to this embodiment, the inner surface of the concrete wall 10 forming the water receiving space (10a) is covered with a plurality of SMC (SHEET MOLDING COMPOUND) panel 20.

The SMC panel 20 is a sheet-shaped panel impregnated with a reinforcing material and filler, a releasing agent, a pigment, a catalyst, and the like in a liquid unsaturated polyester resin, and then chemically increased in viscosity, and then press-molded with a press. Excellent water and corrosion resistance guarantees perfect watertightness.

Therefore, in the case of the water tank covered with the SMC panel 20 on the inner surface of the concrete wall 10, even if used for a long time does not corrode the inner surface in contact with water, perfect water tightness is guaranteed at a low cost investment. In addition, since the SMC panel completely blocks the light and has an effect of inhibiting bacteria from occurring or propagation of the bacteria in the water receiving space 10a, the water receiving space 10a surrounded by the SMC panel contains water contained therein. Hygienic storage for longer periods of time.

In the present embodiment, the SMC panel 20 is provided as a panel having a square shape, the SMC panel according to the present invention can be modified in various forms, such as a rectangle or a triangle differently.

In addition, as shown in Figures 2 and 3, each of the SMC panel 20 is fixed to the concrete wall 10 through the anchor bolt 30, for this purpose inside each corner of the SMC panel 20 The fastening hole 21 for fastening the anchor bolt 30 is formed. The outer surface of the SMC panel 20 around the fastening hole 21 has a somewhat recessed shape for accommodating the nut 41 and the washer 42 which will be described later.

The anchor bolt 30 penetrates the fastening hole 21 and is inserted into one end of the insertion part 31 inserted into the concrete wall 10, and protrudes toward the water receiving space 10a so that the nut 41 is formed on the outer surface thereof. The other end has a fastening part 32 having a spiral for fastening, and the SMC panel 20 has a washer 42 in a state where the insertion part 31 of the anchor bolt 30 is fitted into the fastening hole 21. ) Is fixed to the concrete wall 10 through the nut 41 which is fastened to the fastening portion 32 in the state.

Here, in order to prevent leakage between the fastening hole 21 and the anchor bolt 30, the outer surface of the anchor bolt 30 between the outer surface of the SMC panel 20 and the washer 42 around the fastening hole 21 A rubber-shaped waterproof cap 51 having a rubber shape is fitted therein, and a rubber-shaped waterproof cap covering the nut 41 and the fastening part 32 on an outer surface of the washer 42 on the water receiving space 10a. 52) are combined.

Therefore, after the nut 41 is fastened while the waterproof packing 51 is inserted into the outer circumference of the anchor bolt 30 between the washer 42 and the fastening hole 21, the nut 41 and the fastening part ( 32 is covered with the waterproof cap 52, the sealing hole between the fastening hole 21 and the anchor bolt 30 of the SMC panel 20 is double sealed and the leakage problem through the fastening hole 21 is completely Resolved.

In addition, the watertightness of each SMC panel 20 can be reliably ensured according to the material properties of the SMC panel 20 and the sealing structure of the fastening hole 21, but through each SMC panel 20. There is a risk of leakage.

Therefore, the water tank according to the present embodiment is provided with a leakage preventing means for preventing leakage between each of the SMC panel 20.

4 and 5, the leakage preventing means has a covering member 60 provided to cover the gap between the SMC panel 20 first. The shielding member 60 is provided with excellent waterproof yet lightweight FRP (FIBER GLASS REINFORCED PLASTIC) material, and the shielding member 60 is bonded to the outer surface of the SMC panel 20 through a liquid resin and then bonded to the SMC panel ( Integral with 20).

In addition, the leakage preventing means further comprises a filler 70 is filled between the adjacent SMC panel 20. The filler 70 is filled between the SMC panel 20 in the form of a dough kneaded by mixing a liquid resin into a stone powder containing calcium carbonate as a main component, and sealing the space between the SMC panel 20 and the SMC panel ( 20) to increase the bonding force between.

Each SMC panel 20 has a chamfered surface 22 which is chamfered on one side of the surface facing the water receiving space, and a pair of chamfered surfaces 22 between the SMC panels 20 which are adjacent to each other. Through the filling groove 23 of the "V" shape is formed, the filler 70 is cured in the state filled in the filling groove (23).

In addition, the shielding member 60 is attached to cover the filler 70 in the state in which the filler 70 is filled in the filler groove 23 so that the filler 70 and the filler 70 are interposed between the fillers 70. Through the member 60 is to be double sealed, through which the water tank can be completely prevented leaks through each SMC panel 20.

On the other hand, when constructing a water tank according to the present embodiment, first, by placing concrete in the formwork to form the concrete wall 10 to form a structure for forming a concrete structure having a water receiving space (10a) is performed.

After the structure forming step, a panel attaching step of attaching a plurality of SMC panels 20 to the inner surface of the concrete wall 10 is performed, and in this case, the waterproof packing 51 and the waterproof bolt 51 in the process of fastening the anchor bolt 30. Double sealing between the fastening hole 21 and the anchor bolt 30 through the waterproof cap 52 is performed at the same time.

And the construction of the water tank after filling the filler 70 in the filling grooves 23 between the respective SMC panels 20 after the panel attaching step to cover the filler 70 through the screening member 60 each Finished by the end of the sealing step to finish the sealing between the SMC panel 20 is completed.

In addition, the water tank according to the present invention is a simple maintenance work for attaching the SMC panel 20 to the inner surface of the concrete wall 10 to form a water receiving space (10a) in the existing water tank that is being used as a concrete structure It may also be formed through, in this case, the inner surface of the concrete wall 10 is reinforced through the SMC panel 20.

In this case, first, a foreign matter removal step of removing foreign substances on the inner surface of the existing concrete wall 10 is performed to prevent corruption between the SMC panel 20 and the concrete wall 10 while the SMC panel 20 is attached. After the foreign material removal step, the above-described panel attaching step and the finishing sealing step proceeds in the same way through the description of the construction process, so a detailed description thereof will be omitted.

As described in detail above, the water tank according to the present invention is attached to the SMC panel having a low cost and excellent water resistance and corrosion resistance to the inner surface of the concrete wall forming the water receiving space, and formed on the SMC panel for fixing the SMC panel The fastening holes, as well as the space between each SMC panel is double sealed. Therefore, the water tank according to the present invention, and the water tank provided through the construction method and the repair method thereof, have an advantage of ensuring excellent watertightness through low cost and storing water in a more hygienic state.

Claims (8)

The water tank is provided with a concrete structure having a water receiving space therein, wherein the inner surface of the concrete wall forming the water receiving space is covered with a plurality of SMC (SHEET MOLDING COMPOUND) panels. The method of claim 1, Water tank comprising a leakage preventing means for preventing leakage between the SMC (SHEET MOLDING COMPOUND) panel. The method of claim 2, The water leak preventing means comprises a water blocking member of FRP (FIBER GLASS REINFORCED PLASTIC) material provided to cover the gap between the SMC (SHEET MOLDING COMPOUND) panel. The method of claim 3, wherein The water leakage preventing means further comprises a filler filled between adjacent SMC panels (SHEET MOLDING COMPOUND), wherein the shielding member is provided to cover the filler. The method of claim 3, wherein The covering member is a water tank, characterized in that bonded to the outer surface of the SMC (SHEET MOLDING COMPOUND) panel through a liquid resin. The method of claim 1, The SMC (SHEET MOLDING COMPOUND) panel is formed with a fastening hole for fastening the anchor bolt, the anchor bolt is inserted into the concrete wall through the fastening hole is inserted into one end, and protrudes toward the water receiving space It is provided with a fastening part of the other end formed with a spiral for fastening the nut on the outer surface, The SMC (SHEET MOLDING COMPOUND) panel is fixed to the inner surface of the concrete wall through a nut which is fastened to the fastening part in the state where the washer is interposed, Waterproof packing is fitted to the outer circumference of the anchor bolt between the outer surface of the SMC (SHEET MOLDING COMPOUND) panel and the washer around the fastening hole, The water tank, characterized in that for the water receiving space side washer outer surface is combined with a waterproof cap covering the nut and the fastening portion. Forming a concrete wall by pouring concrete into the formwork to form a concrete wall; forming a concrete structure having a water receiving space therein; A plurality of SMC (SHEET MOLDING COMPOUND) panels are attached to the inner surface of the concrete wall forming the water receiving space by using anchor bolts, and sealing between the fastening holes formed in the SMC panel and anchor bolts for fastening the anchor bolts. Panel attaching step to; And a finishing sealing step of sealing between the SMC panels. To reinforce the inner surface of the concrete wall in the basic water tank provided with a concrete structure having a water receiving space inside the concrete wall A debris removing step of removing debris on an inner surface of the concrete wall forming the water receiving space; A panel attachment step of attaching a plurality of SMC panels to the inner wall of the concrete wall using anchor bolts, and sealing the fastening holes formed in the SMC panel and anchor bolts to fasten the anchor bolts; Finishing sealing step for sealing between the SMC panel; Water tank repair method comprising a.

Images