KR102068278B1 - Lining method of concrete water storage tank using the 3pac lining panel - Google Patents

Abstract

The present invention relates to a lining construction method of a concrete water storage tank using a 3PAC lining panel. According to one embodiment of the present invention, a lining construction method of a concrete water storage tank using a 3PAC lining panel, which lining-constructs a fresh water space in which water is stored to be suitable for a drinking water standard, can easily drain condensation liquid water to the outside of the concrete water storage tank through the 3PAC lining panel and finishes the fresh water space with a PE sheet by using a PE double side coating integrated fixture, thereby easily securing sanitation of the fresh water space to effectively improve reliability relating to the sanitation of the concrete water storage tank.

Description

LINING METHOD OF CONCRETE WATER STORAGE TANK USING THE 3PAC LINING PANEL}

The present invention relates to a lining construction method of the concrete reservoir. More specifically, the present invention relates to a lining construction method of a concrete reservoir for lining a fresh water space of a concrete reservoir where water is stored with PE sheets.

In large facilities such as large buildings and apartments, water tanks are installed and operated to store large amounts of water. For example, these reservoirs are classified into stainless steel reservoirs, sheet molding compound (SMC) reservoirs, and concrete reservoir tanks according to materials.

The concrete water tank is installed in large buildings or apartments due to its low price and excellent durability, and is also applied to construct drainage basins, water purification plants, and sedimentation basins.

For the purpose of securing hygiene suitable for drinking water standards, such a concrete water tank is attached with a PE sheet (Polyethylene Sheet) on the concrete side wall surrounding the fresh water space for storing water or install a PDF Double Panel (Polyethylene Double Frame Panel) on the concrete side wall Then, a PE sheet is attached to the surface of the PDF panel to perform lining.

However, this lining construction method is a problem that water pollution occurs as the contact portion of the PE sheet is deformed or separated (dropped) from the concrete side wall due to moisture in the fresh water space after a certain period of time, and water comes into direct contact with concrete. There is this.

In order to solve this problem, the lining construction method according to the prior art (Patent Document 1) is installed on the concrete sidewall, forms an air layer divided by the partition partition formed therein, and a hole for the condensation water flowing along the concrete sidewall is introduced. It is disclosed that the condensed water is discharged to the outside of the concrete reservoir through the 3PAC lining panel formed in communication with the air layer, the discharge hole for discharging the condensed water introduced through the hole.

In addition, the lining construction method according to another prior art (Patent Document 2) is a first configuration in which the HDPE (High Density Polyethylene) resin and PP (Polypropylene) resin is mixed at a predetermined ratio and the red configuration on the outer surface of the first panel By installing a 3PAC lining panel consisting of a second panel to the concrete side wall, by bonding a resin panel to the surface of the second panel, by interposing a reinforcement plate to form a leak check between the resin panel and the second panel When leaks occur, the condensation water flows out while moving only through the leak check unit, and it is disclosed that the leak check can be easily performed.

On the other hand, the lining construction method according to another prior art (Patent Document 3) discloses that the waterproof sheet (PE sheet) can be easily attached to the concrete structure through the waterproof sheet fixing means.

In other words, through the waterproof sheet fixing means, not only the waterproof sheet can be easily attached to the concrete structure, but also to strengthen the bonding force to prevent the separation (dropout) of the waterproof sheet.

Here, the waterproof sheet fixing means is composed of a sheet joint member to which the waterproof sheet is welded while being heated at high frequency and a tableting ball or anchor bolt for fixing the sheet joint member to the concrete structure, the coupling hole formed in the sheet joint member Construction is made in such a way that the molten portion of the waterproof sheet passes through and is cured through fusion.

However, in the lining construction method using the waterproof sheet fixing means, the molten portion of the waterproof sheet passing through the coupling hole formed in the sheet bonding member is hardened after the high frequency welding, and thus the waterproof sheet fused to the waterproof sheet fixing means. There is a problem that the molten portion of the thinner.

In other words, the lining construction method using the waterproof sheet fixing means may reduce the volume of the molten portion of the waterproof sheet after high frequency fusion and cause buckling to become relatively thinner than other portions, thereby deteriorating durability.

A further problem is that over time, the melted portion passing through the joining hole of the sheet joining member may fall off the waterproof sheet, which may result in separation (falling) of the waterproof sheet fixing means and the waterproof sheet. It is going on.

Republic of Korea Patent Publication No. 10-1632409 Republic of Korea Patent Publication No. 10-1713962 Republic of Korea Patent Publication No. 10-1005837

An object of the present invention is to improve the lining construction method for lining the fresh water space in which water is stored to meet the drinking water standard, it is possible to easily drain the condensation water to the outside of the concrete reservoir as well as lining construction of PE sheet It is to provide a lining construction method of the concrete water tank using the 3PAC lining panel to facilitate the hygiene of fresh water space.

In order to solve the above problems,

The lining construction method of the concrete reservoir using the 3PAC lining panel according to an embodiment of the present invention is a construction method for lining the fresh water space of the concrete reservoir formed with a fresh water space in which water is stored with a PE sheet (Polyethylene Sheet) As

(A) is installed on the inner surface of the concrete constituting the fresh water space, the inner space is provided, the partition is formed in the inner space, the condensed water flowing along the inner surface to communicate with the inner space to flow into the inner space An inflow hole is formed, a drainage passage through which the condensation water introduced through the inflow hole passes is formed in the partition wall, a drainage hole for externally draining the condensation water passing through the drainage passage is formed, and an anchor bolt is passed through. The through hole is formed in the front, the fixing step of fixing the 3PAC lining panel formed with a reinforcement portion thickened relatively thick on the rear surface to which the anchor bolt is fastened through the anchor bolt on the concrete inner surface;

(b) A circular body of metallic material formed with a central portion protruding toward the PE sheet and having a first fixing hole and a second fixing hole having a smaller diameter than that of the first fixing hole in an alternating manner. A coating is formed on the entire surface of the central portion facing the PE sheet and is integrated with the body. The first PE coating layer is bonded to the PE sheet through heat fusion, and the coating is formed on the entire rear surface of the central portion. The first PE coating layer is exposed to the outside of the PE double-layer coating integrated fixture consisting of a second PE coating layer which is connected to the first PE coating layer and the bridge (bridge) through the communication hole formed on the outside and integrated with the body Arranging the front of the 3PAC lining panel through a knife block piece fastened to a fixing hole; And

(c) lining the fresh water space with the PE sheet by applying high frequency to the body and thermally bonding the PE sheet to the first PE coating layer in an interview state;

It may include.

In addition, in the lining construction method of the concrete water tank using the 3PAC lining panel according to an embodiment of the present invention, (d) by connecting the connection pipe to the drain hole through the sump connected to the connection pipe from the outside of the concrete water tank Collecting condensation water;

It may further include.

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In addition, in the lining construction method of the concrete water tank using the 3PAC lining panel according to an embodiment of the present invention, (a1) when the lower corner of the fresh water space is a chamfer (Chamfer) shape and the front and the lining process through a PE sheet Installing a trapezoidal first lining corner bar having a flat rear surface symmetrically inclined at the lower corner, and installing 3PAC lining panels on both sides of the first lining corner bar;

It may further include.

In addition, in the lining construction method of the concrete reservoir using the 3PAC lining panel according to an embodiment of the present invention, (a2) when the lower corner of the fresh water space is perpendicular to the 3PAC lining panel is installed in the lower corner cross, PE Installing a second lining corner bar having a round part lined through a seat on the front surface of the 3PAC lining panel;

It may further include.

In addition, in the lining construction method of the concrete water tank using the 3PAC lining panel according to an embodiment of the present invention, the ends of the PE sheet can be heat-sealed overlapping each other.

Such a solution will become more apparent from the detailed description for carrying out the following invention based on the accompanying drawings.

Prior to this, the terms or words used in this specification and claims should not be construed in the usual and dictionary sense, and the inventors will be required to properly define the concepts of terms in order to best describe their invention. On the basis of the principle that it can be interpreted as meaning and concept corresponding to the technical idea of the present invention.

According to an embodiment of the present invention, the fresh water space of the concrete reservoir using a 3PAC lining panel that can easily drain externally condensation water, and a PE double-side coating integral fixture that allows PE sheet to be easily installed. The lining can be installed in a suitable way to effectively improve the hygiene-related reliability of the concrete reservoir.

1 to 2 is a cross-sectional view showing an embodiment of the lining construction method of the concrete reservoir using the 3PAC lining panel according to an embodiment of the present invention.
Figure 3 is a perspective view showing a 3PAC lining panel according to an embodiment of the present invention.
Figure 4 is a cross-sectional view showing an enlarged main portion of the embodiment of the lining construction method of the concrete reservoir using the 3PAC lining panel according to an embodiment of the present invention.
5 to 6 is a perspective view showing a PE double-sided coating integrated fixture for a concrete reservoir according to an embodiment of the present invention.
Figure 7 is a cross-sectional view showing a PE double-sided coating integrated fixture for a concrete reservoir according to an embodiment of the present invention.

Specific aspects and specific technical features of the present invention will become more apparent from the following detailed description and embodiments related to the accompanying drawings. In the present specification, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used to refer to the same components, even if displayed on different drawings. In addition, in describing one embodiment of the present invention, when it is determined that the detailed description of the related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only to distinguish the components from other components, and the nature, order, order, etc. of the components are not limited by the terms. If a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected to or connected to that other component, but there may be another configuration between each component. It is to be understood that the elements may be "connected", "coupled" or "connected".

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

1 to 2 are cross-sectional views showing an embodiment of the construction method of the lining of the concrete reservoir using the 3PAC lining panel according to an embodiment of the present invention, the concrete constituting the fresh water space (1a) in the interior of the concrete reservoir (1) 3PAC lining panel 10 is installed on the inner surface (1b), PE double-side coating integral fixture 5 is arranged in the front of the 3PAC lining panel 10, PE through the PE double-side coating integral fixture (5) The embodiment 4 in which the sheet 4 is lined is shown.

3 is a perspective view showing a 3PAC lining panel 10 according to an embodiment of the present invention, the partition wall 12 is formed in the inner space 11, the inlet hole (communication with the inner space 11 ( The structure of the 3PAC lining panel 10 in which 11a), the drain hole 11b, and the drainage path 12a were formed is shown.

Figure 4 is a cross-sectional view showing an enlarged main portion of the embodiment of the construction method of the lining of the concrete reservoir using the 3PAC lining panel according to an embodiment of the present invention, 3PAC lining panel through the anchor bolt (2) on the concrete inner surface (1b) (10) is installed, PE double-side coating integral fixture (5) is installed through the knife block piece (3) on the front of the 3PAC lining panel 10, PE sheet (4) on the first PE coating layer (30) Shows an embodiment in which is bonded by thermal fusion.

As shown in Figures 1 to 4, the lining construction method of the concrete reservoir using the 3PAC lining panel according to an embodiment of the present invention is formed in the interior of the concrete reservoir (1) fresh water space (1a) for storing water PE sheet It relates to the construction method to process lining in (4).

That is, by installing a well-known 3PAC lining panel 10 on the concrete inner surface (1b) constituting the fresh water space (1a), by installing the PE double-side coating integral fixture 5 on the front of the 3PAC lining panel (10) The PE sheet 4 is constructed through the PE double-sided coating fixture 5 as a medium.

Wherein the concrete inner surface (1b) will be revealed in advance to refer to the concrete wall surface, the concrete floor surface and the concrete ceiling surface constituting the fresh water space (1a) in the interior of the concrete reservoir (1).

As is known, the 3PAC lining panel 10 is provided with an inner space 11 through an extrusion molding method, partition walls 12 are formed in the inner space 11, and a concrete inner surface 1b is formed. An inflow hole 11a communicating with the inner space 11 is formed at the rear surface in contact with the concrete inner surface 1b so that the condensation water flowing along the inner space 11 flows into the inner space 11.

In addition, a drainage passage 12a through which the condensation water introduced through the inflow hole 11a passes is formed in the partition 12, and the drainage hole 11b that externally drains the condensation water that has passed through the drainage passage 12a. It is provided formed on this side. This 3PAC lining panel 10 is to be installed on the concrete inner surface (1b) through the anchor bolt (2), specifically, the set anchor bolt.

However, the 3PAC lining panel 10 of the known configuration is improved to form a through hole 14 through which the anchor bolt 2 passes, and the thickness is relatively thick on the rear surface to which the anchor bolt 2 is fastened. By forming the reinforced reinforcing portion 13, it is possible to prevent the degradation of durability due to the fastening of the anchor bolt (2).

The 3PAC lining panel 10 is constructed to be arranged on the concrete inner surface (1b), the joint portion (10a) that each 3PAC lining panel 10 is to be welded to each other by manual welding through a fusion rod, for example. .

Here, the drain pipe 11b formed in the 3PAC lining panel 10 connects the conduit 15 to drain the condensation water introduced into the inner space 11 through the inlet 11a to the outside of the concrete reservoir 1. Connected to, can connect the sump (16) to the connector (15).

That is, the sump 16 disposed outside the concrete reservoir 1 is connected to the drain hole 11b through a connecting pipe 15 passing through the concrete reservoir 1, and consequently drains the condensed water to the outside. It will be able to carry out the step of collecting water.

Therefore, according to an embodiment of the present invention, the condensation water generated between the 3PAC lining panel 10 and the concrete inner surface (1b) can be easily drained to the outside of the concrete reservoir 1, the moisture in the fresh water space (1a) In addition to preventing the occurrence of the phenomenon, it is possible to prevent water pollution in which condensation water is mixed with water stored in the freshwater space 1a.

On the other hand, the lining construction method of the concrete water tank using the 3PAC lining panel according to an embodiment of the present invention is to lining the fresh water space (1a) by constructing the PE sheet 4 on the front of the 3PAC lining panel (10).

The PE sheet 4 is, for example, manufactured to a thickness of about 4 mm to be bonded to the front surface of the 3PAC lining panel 10, by forming an extension outward than the 3PAC lining panel 10, overlapping the end (4a) Heat-sealed.

That is, for example, by forming the PE sheet 4 larger than the front surface of the 3PAC lining panel 10 and heat-sealing the ends 4a overlapping each other by about 50 mm, each PE sheet 4 can be integrated.

Here, prior to lining the freshwater space (1a) through the PE sheet (4), the corner bar for lining known in the lower corner of the freshwater space (1a) having difficulty in lining construction of the PE sheet (4) Corner bar) can be installed.

For example, when the lower corner of the fresh water space (1a) is a chamfer (Chamfer) shape, the trapezoidal first lining corner bar 50 is formed with a flat front and a rear surface symmetrical to the lining through the PE sheet (4) It is installed inclined at the lower corner, and proceeds to install the 3PAC lining panel 10 on both sides of the first lining corner bar 50. The first lining corner bar 50 may be configured to interconnect the drain hole 11b and the connection pipe 15.

On the contrary, when the lower corner of the freshwater space 1a is at right angles, the 3PAC lining panel 10 is first installed in the lower corner, and the front and upper surfaces of the 3PAC lining panel 10 intersect each other. The second lining corner bar 60 is installed.

The second lining corner bar 60 is formed by rounding the front surface of the lining process through the PE sheet 4 and having a rear corner formed at right angles. The front surface and the top surface of the 3PAC lining panel 10 are each other. It is installed at the lower corner that intersects.

In other words, according to the shape of the lower corner of the freshwater space (1a) by installing the first corner bar 50 or second corner bar 60 for the lower corner to the lower corner of the fresh water space (1a) By easy lining process, workability can be improved effectively.

In addition, at the upper corner where the concrete wall surface and the concrete ceiling surface meets, the L-shaped PE angle 6 is installed on the front and lower surfaces of each 3PAC lining panel 10 to finish the PE sheet 4, at which time The PE angle of 6 is to be constructed on the outer surface of the PE sheet (4).

Here, the PE sheet 4 is not limited to the concrete ceiling surface constituting the freshwater space 1a, but only to the concrete wall surface and the concrete floor surface. And the PE sheet 4 is bonded to the PE double-side coating integrated fixture 5 arranged on the front of the 3PAC lining panel 10, rather than directly bonded to the front of the 3PAC lining panel 10, and is constructed.

5 is a perspective view showing a PE double-sided coating integrated fixture 5 for a concrete water reservoir according to an embodiment of the present invention, the first PE coating layer 30 on the entire surface of the central portion 21 protruding from the body 20 Is formed, and the first and second fixing holes 24 and 25 are alternately arranged on the outer side of the body 20.

FIG. 6 is a perspective view illustrating the PE double-sided coating integrated fixture 5 for a concrete water reservoir according to an embodiment of the present invention, and shows that the second PE coating layer 40 is formed on the entire rear surface of the central portion 21. .

7 is a cross-sectional view showing a PE double-sided coating integrated fixture 5 for a concrete water reservoir according to an embodiment of the present invention, the first and second PE coating layer through the communication hole 23 formed on the outer side of the central portion (21) (30) and (40) are connected to each other by the bridge (31) to show a coupling relationship integrated with the body (20).

As shown in Figures 4 to 7, PE double-side coating integral fixture 5 for a concrete reservoir according to an embodiment of the present invention is interposed between the 3PAC lining panel 10 and the PE sheet (4) the PE sheet (4) Is used as a kind of medium for bonding to the 3PAC lining panel (10).

Herein, the PE double-sided coating integrated fixture 5 will be described in detail. The PE double-coated integral fastener 5 includes a body 20 formed of a metal material, specifically, a steel material, in which a central portion 21 protrudes toward the PE sheet 4. The central portion 21 is formed integrally with the body 20 through the connecting portion 22, the communication hole 23 is formed in the outer portion is configured.

That is, the body 20 is formed of a flat plate, and the center portion 21 is integrally formed through the connecting portion 22 having a trapezoidal cross section. For example, the connecting portion 22 and the central portion of the body 20 are formed by press molding. 21) can be formed.

The overall appearance of the body 20 may be formed in a circular or polygonal shape. However, in the following description will be described based on the circular body 20, it is shown and shown.

The circular body 20 is radially arranged alternately with a first fixing hole 24 and a second fixing hole 25 having a smaller diameter than the first fixing hole 24 on the outer side. 2 is installed on the front surface of the 3PAC lining panel 10 through the knife block pieces 3 respectively fastened to the fixing holes 24 and 25. In addition, the central portion 21 formed in the circular body 20 is also formed in a circular communication hole 23 is formed in a radial arrangement in the outer periphery.

On the other hand, PE double-side coating integral fixture 5 according to an embodiment of the present invention is coated on both sides of the central portion 21, is connected to the bridge 31 through the communication hole 23 is integrated with the body 20 The first and second PE coating layers 30 and 40 are included.

The first PE coating layer 30 is formed on the entire surface of the central portion 21 facing the PE sheet 4 to be integrated with the body 20, for example, to be bonded to the PE sheet 4 through high frequency heat fusion. do.

The second PE coating layer 40 is coated on the entire rear surface of the central portion 21, and the first PE coating layer 30 and the bridge 31 through communication holes 23 radially formed on the outer side of the central portion 21. Connected to and integrated with the body 20.

That is, the first PE coating layer 30 is, for example, is configured to be bonded to the PE sheet 4 by being heat-sealed when applying a high frequency to the metal body 20, the separation (falling) phenomenon of the first PE coating layer 30 In order to prevent this, the second PE coating layer 40 is connected to the first PE coating layer 30 by the bridge 31.

The first and second PE coating layers 30 and 40 are formed only on both sides of the central portion 21 so as to reduce the cost by minimizing the amount of polyethylene used as the material.

Therefore, according to an embodiment of the present invention, since there is no change in the thickness of the heat-sealed portion of the PE sheet 4 bonded to the PE double-side coating integrated fixture 5 through the first PE coating layer 30, fresh water space (1a) Water pressure safety of water stored in

That is, it is possible to prevent the buckling phenomenon that the thickness of the heat-sealed portion is reduced while the volume of the PE sheet 4, which is a problem of the prior art, has an effect of improving the water pressure safety of the concrete reservoir 1.

In addition, by connecting the first PE coating layer 30 to the second PE coating layer 40 as a bridge 31 to integrate with the body 20, to prevent the separation (falling) of the first PE coating layer 30 by The reliability by constructing the PE sheet 4 can be improved.

Here, the method of installing the PE double-sided coating fixture 5 on the front surface of the 3PAC lining panel 10 is, first, the knife block piece 3 at two or four places of the first and second fixing holes 24 and 25. By fastening the step of installing the PE double-sided coating integrated fixture 5 on the front of the 3PAC lining panel 10 will be carried out.

Next, a high frequency is applied to the body 20 in a state in which the PE sheet 4 is interviewed with the first PE coating layer 30 of the PE double-side coating integrated fixture 5 arranged on the front of the 3PAC lining panel 10. Then, the step of bonding the first PE coating layer 30 and the PE sheet 4 through heat fusion.

Therefore, according to an embodiment of the present invention, the PE double-side coating integral fixture 5 is installed on the 3PAC lining panel 10 installed on the concrete inner surface 1b constituting the fresh water space 1a of the concrete reservoir 1 By constructing the PE sheet 4 through the PE double-sided coating fixture 5, the lining treatment of the freshwater space 1a that meets the drinking water standard is performed, thereby improving the workability as well as the concrete water storage tank 1. Can effectively improve the reliability associated with hygiene.

Although the present invention has been described in detail through one embodiment, this is for explaining the present invention in detail, and the lining construction method of the concrete reservoir using the 3PAC lining panel according to the present invention is not limited thereto. The terms "comprise", "comprise", or "have" described above mean that a corresponding component may be included unless specifically stated otherwise, and therefore, excluding other components is excluded. Rather, it should be construed that it may further include other components, all terms including technical or scientific terms are to be generally understood by one of ordinary skill in the art unless otherwise defined Has the same meaning as

In addition, the above description is merely illustrative of the technical idea of the present invention, and those skilled in the art may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the one embodiment. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1: concrete reservoir 1a: freshwater space
1b: concrete inner surface 2: anchor bolt
3: knife block piece 4: PE sheet
4a: End of PE sheet 5: PE double sided coating fixture
6: PE angle 10: PDF panel
10a: joint 11: internal space
11a: inflow hole 12: partition wall
12a: drainage channel 12b: drainage hole
13: reinforcement 14: through hole
15: connector 16: sump
20: body 21: center
22: connecting portion 23: communication hole
24: first fixing hole 25: second fixing hole
30: first PE coating layer 31: bridge
40: second PE coating layer 50: first lining corner bar
60: corner bar for the second lining

Claims (7)

As a construction method for lining the fresh water space of the concrete reservoir formed with a fresh water space in which water is stored with PE sheet,
(A) is installed on the inner surface of the concrete constituting the fresh water space, the inner space is provided, the partition is formed in the inner space, the condensed water flowing along the inner surface to communicate with the inner space to flow into the inner space An inflow hole is formed, a drainage passage through which the condensation water introduced through the inflow hole passes is formed in the partition wall, a drainage hole for externally draining the condensation water passing through the drainage passage is formed, and a through hole through which the anchor bolt passes. Forming a 3PAC lining panel formed on a front surface and having a reinforcement having a relatively thick thickness on a rear surface to which the anchor bolt is fastened, through anchor bolts on an inner surface of concrete;
(b) a circular body formed of a metallic material having a central portion protrudingly formed toward the PE sheet and having an alternately arranged first fixing hole and a second fixing hole having a smaller diameter than the first fixing hole, and the PE The coating is formed on the entire surface of the central part facing the sheet and is integrated with the body. The first PE coating layer is bonded to the PE sheet through heat fusion, and the coating is formed on the entire rear surface of the central part. 3PAC through a knife block piece that is fastened to the first and second fixing holes so that the first PE coating layer is exposed outside the PE double-side coating integral fixture consisting of a second PE coating layer connected to the first PE coating layer and integrated with the body Installing the array in front of the lining panel; And
(c) lining the freshwater space with the PE sheet by applying high frequency to the body and thermally bonding the PE sheet to the first PE coating layer in an interview state;
Lining construction method of concrete reservoir using 3PAC lining panel comprising a.
The method according to claim 1,
(d) connecting the connection pipe to the drain hole to collect condensate water through a collecting well connected to the connection pipe from the outside of the concrete reservoir;
Lining construction method of concrete reservoir using 3PAC lining panel further comprising.
delete delete The method according to claim 1.
(a1) When the lower corner of the fresh water space is in the form of a chamfer, a trapezoidal first lining corner bar having a flat front face and a symmetrical back face that is lined through the PE sheet is inclined at the lower corner, and the first corner is inclined. Installing 3PAC lining panels on both sides of the lining corner bars;
Lining construction method of concrete reservoir using 3PAC lining panel further comprising.
The method according to claim 1.
(a2) When the lower corner of the freshwater space is at right angles, the 3PAC lining panel is cross-installed at the lower corner, and the second lining for which the front surface is lined with the PE sheet is rounded inward and the rear edge is formed at right angles. Installing a corner bar to the front of the 3PAC lining panel;
Lining construction method of concrete reservoir using 3PAC lining panel further comprising.
The method according to claim 5 or 6,
The PE sheet is a lining construction method of the concrete reservoir using a 3PAC lining panel characterized in that the ends are overlapped with each other and heat-sealed.

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