KR102180213B1 - Concrete Formwork for Installation of Water and Sewer Pipes and Construction Method using the same - Google Patents

Abstract

The present invention relates to a concrete form for installing water and sewer pipes and a construction method of water and sewer pipes using the same, which can facilitate construction by eliminating the need for separately removing a form for installing water and sewer pipes after depositing concrete to quickly perform underground burying construction of the water and sewer pipes. To achieve the objective, according to the present invention, the concrete form for installing water and sewer pipes comprises: a bottom unit having a prescribed width and length in a horizontal direction; a pair of side units formed to have a prescribed height in a vertical direction while one end thereof is connected to both sides of the bottom unit; a plurality of height adjustment parts installed at prescribed intervals along a middle portion of the upper surface of the bottom unit; and a pipe floating prevention part installed on sides of the pair of side units facing each other to protrude by a prescribed length.

Description

Concrete Formwork for Installation of Water and Sewer Pipes and Construction Method using the same}

The present invention relates to a concrete formwork for installation of water and sewage pipes and a method of constructing water and sewage pipes using the same, and more particularly, when the water and sewage pipes are buried in the ground and constructed, concrete can be quickly poured and buried without removing the form separately. It relates to a concrete formwork for installation of water and sewage pipes and a water and sewage pipe construction method using the same.

In general, when installing water and sewage pipes, excavate the ground to a predetermined depth, assemble the formwork along the length, connect the water and sewage pipes along the formwork, pour concrete to cure, and remove the installed formwork and then excavate the ground. To complete the construction.

However, since the existing water and sewage pipe installation method as described above uses a consumable formwork, there is a problem of environmental pollution due to waste of resources and generation of construction waste materials, and concrete is a construction joint that occurs due to the separation of the foundation and the wall. Due to the step-by-step construction in which the quality deteriorates and the installation and dismantling of the formwork goes through the wall construction after the foundation is placed, sufficient time is required for the concrete curing, and the installed formwork must be removed after the concrete is cured, so the construction is completed by backfilling the soil. It takes a long time to do so, and therefore, there is an unsuitable problem when emergency recovery is required due to damage to water and sewage pipes and ground subsidence.

In addition, in recent years, there is a problem that the ground subsidence occurs frequently due to leakage of water and sewer pipes, and therefore, various measures have been prepared to prevent ground subsidence due to leakage of water and sewage pipes during underground reclamation.

As a prior art for the above purpose, a structure for preventing subsidence of water and sewage pipes (hereinafter referred to as'patent document') of Korean Patent Publication No. 1954105 is disclosed.

The structure for preventing subsidence of water and sewage pipes disclosed in the patent document includes a semicircular first seating portion installed below the connection portion so as to support the connection portion of the water and sewage pipes, and a first seat extending in the transverse direction from both ends of the first seating portion. Flange, a first receiving portion formed on the inside of the first receiving portion to seat the insertion portion of the water and sewage pipe, a stopper receiving portion formed inside the first receiving portion to face each other relative to the first receiving portion, the first receiving portion And a filling portion formed vertically through the first flange so as to fill the soil under the first flange, a connecting bar receiving portion formed on the upper surface of the first flange facing each other based on the filling portion, and one end of the stopper receiving portion. A main body configured with a first guide part in communication with and the other end in communication with the filling part and having a rectangular shape inside, and a second guide part in communication with the first guide part and having a circular inside; A first fixing pack protruding downward from the lower surface of the first flange and being stuck in the stratum; A stopper that is removably fitted to the stopper receiving portion and is moved in a transverse direction by a water and sewage pipe, a square bar extending from the stopper and movably fitted to the first guide portion, and a second guide portion extending from the square bar. A support unit made of a second fixing pack composed of an insertion rod that is movably fitted and embedded in the stratum; A connecting member inserted into the connecting bar receiving portion of the pedestal unit to interconnect the pedestal units; A semicircular second seating portion disposed above the connection portion of the water and sewage pipes and surrounding the connection portion of the water and sewage pipes together with the first seating portion; A second flange extending in the transverse direction from both ends of the second seating portion, mounted on an upper surface of the first flange, fixed through a fastening means, and limiting separation of the connecting member; And a cover made of a second receiving portion formed inside the second receiving portion and surrounding the insertion portion of the water and sewage pipe together with the first receiving portion.

However, the water and sewage pipe settling prevention structure disclosed in the above patent document is very complicated to construct because a plurality of complex structures of the settlement prevention structure must be installed along the water and sewer pipe, and therefore, there is a problem that the time required for the construction of the water and sewer pipe is lengthened.

Therefore, by improving the installation structure of the water and sewage pipe installation formwork, it is possible to shorten the time to construct the water and sewage pipes, and to maintain the installation state of the buried water and sewage pipes even under ground subsidence such as differential settlement. Development of construction methods is required.

KR 20-0429447 Y1 (2006. 10. 17.) KR 10-0924701 B1 (2009. 10. 27.) KR 10-1954105 B1 (2019.02.26.) KR 10-0588189 B1 (2006. 06. 01.)

The present invention was conceived to solve the problem of the conventional water and sewage pipe installation formwork as described above, and the problem to be solved by the present invention is that there is no need to separate the formwork for installing water and sewage pipes after placing concrete. It is simple, and it is possible to save resources by integrating it into the target structure by using a concrete formwork, and through this, a concrete formwork for installing water and sewage pipes that can quickly perform underground reclamation construction of sewer pipes, and a water and sewage pipe construction method using the same Is to provide.

The concrete formwork for installing water and sewage pipes according to the present invention for solving the above problems comprises: a floor having a predetermined width and length horizontally; A pair of side portions having one end connected to both side surfaces of the bottom portion and formed to have a predetermined height vertically; A plurality of height adjusters installed at predetermined intervals along the center of the upper surface of the bottom portion; And it characterized in that it comprises a tube injury prevention device each installed so as to protrude a predetermined length on one side facing the side portion of the pair.

In addition, a plurality of sockets having threads formed on an inner surface of the bottom portion of the present invention are installed at predetermined intervals, and the height adjustment mechanism includes a screw coupling portion having a predetermined length vertically while being screwed to the socket; And a mounting plate having a predetermined width while being installed on an upper end of the screw coupling portion and having an arc shape having a predetermined diameter in cross-sectional shape.

In addition, the present invention is another feature in that the pipe injuries prevention device is a "a"-shaped and reversed "a"-shaped fixture.

In addition to this, a water and sewage pipe construction method using a concrete formwork for installing water and sewage pipes according to the present invention comprises: an excavation step of excavating the ground to a predetermined depth so that the water and sewage pipes are installed; Formwork installation step of inserting and installing a concrete formwork prepared in advance in the excavated ground along the length 　; A slope adjustment step of adjusting the slope of the water supply and sewer pipes using the height adjustment tool of the concrete formwork; A water and sewage pipe seating step of seating the water and sewage pipes along the height adjustment hole which is tilted through the slope adjustment step; A water and sewage pipe fixing step of fixing the water and sewage pipes seated in the concrete formwork through the water and sewage pipe seating step; Concrete placing step of placing concrete in the space between the concrete formwork and the water and sewage pipes; A concrete curing step of curing the concrete poured into the concrete formwork for a predetermined period of time through the concrete placing step; And a backfilling step of backfilling and finishing the excavated ground after the concrete is cured through the concrete curing step.

In addition, the present invention further comprises a cover installation step of closing the cover along the length of the concrete formwork between the concrete curing step and the backfilling step.

According to the present invention, when a new water supply and sewage pipe is newly installed or an existing water and sewage pipe is repaired, the concrete mold installed for concrete pouring is not removed but is buried in the ground as it is, so the time it takes to remove the formwork This has the advantage of being shortened, and because it does not use a consumable material formwork, it is possible to prevent environmental pollution by eliminating waste of resources and generation of construction waste materials, reducing construction costs, and integrating concrete formwork with the target structure. By doing so, there is an advantage of saving resources used for completing the structure.

In addition, since the concrete formwork is structurally robustly integrated with the concrete to be poured, there is an advantage in that the rigidity for supporting and protecting the water and sewage pipes is further improved.

In addition, a pair of concrete formwork assembled adjacent to each other is rigidly assembled so that the level is maintained by the anti-settling coupling groove and the anti-settling coupling protrusion, thereby structurally preventing the water and sewage pipes from being damaged due to differential settlement.

In addition, it is possible to easily adjust the slope for drainage performance of water and sewage pipes through a plurality of height adjustment holes installed on the bottom of the concrete formwork, and keep the buried pipes at a certain interval from the floor without using a separate spacer. There is an advantage that can be made.

1 is a perspective view showing an example of a concrete formwork for installing water and sewage pipes according to the present invention.
Figure 2 is a plan view of Figure 1;
Figure 3 is a side view of Figure 1;
Figure 4 is a view showing an example of the height adjustment device according to the present invention.
Figure 5 is a view showing another embodiment of the height adjustment device according to the present invention.
Figure 6 is a perspective view showing an example of a tube injury prevention device according to the present invention.
7 is a process flow chart showing an example of a water and sewage pipe construction method using a concrete formwork for water and sewage pipe installation according to the present invention.
8 is a view showing an example of a formwork installation step according to the present invention.
9 is a view showing an example in which the formwork according to the present invention is assembled.
10 is a view showing an example of a step of fixing a water and sewage pipe according to the present invention.
11 is a view showing an example of a concrete pouring step according to the present invention.
12 is a view showing an example of a backfill step according to the present invention.
13 is a view showing an example of the cover installation step according to the present invention.
14 is a view showing an example of the backfill step according to FIG. 13;

Hereinafter, a preferred embodiment of the present invention will be described in detail according to the accompanying drawings.

According to the present invention, the formwork for installing the water supply and sewage pipes does not need to be removed separately after pouring concrete, so the construction is simple, and through this, the concrete formwork for installing the water supply and sewage pipes that can quickly perform the underground reclamation construction of the sewer pipes and water and sewage pipes using the same In order to provide a construction method, the concrete formwork for installing water and sewage pipes of the present invention is a floor part 10, a side part (20A, 20B), a height adjuster 30 and a pipe part as shown in FIGS. 1 and 2 It includes an upper prevention port 40.

Hereinafter, for convenience of explanation, the direction in which the anti-settling coupling protrusion 21, which will be described later on the basis of FIG. 1, is formed is referred to as'front', and the direction in which the anti-settling coupling groove 22 is formed is referred to as' It will be described by referring to'rear'.

The bottom part 10 is installed to be approximately horizontally on the ground excavated to a predetermined depth to cover the bottom side of the water and sewage pipe 1, and the bottom part 10 is as shown in FIGS. 1 and 2 Likewise, it is made of a square or rectangular concrete block having a predetermined width and length horizontally.

In addition, a socket 11 having a predetermined length vertically while a thread is formed on the inner surface of the bottom 10 is installed, and a height adjustment tool 30 to be described later is screwed through the socket 11 to increase the height. Will be adjusted.

The side parts 20A and 20B are installed to be perpendicular to the ground excavated to a predetermined depth to cover both sides of the water and sewage pipe 1, and the length L of the side parts 20A and 20B is shown in FIGS. 1 to 3 As shown in, it is formed to have a length corresponding to the bottom part 10, and the vertical height (H) of the side parts (20A, 20B) is formed to be 1.5 to 3 times the diameter (D) of the water and sewage pipe (1). do. At this time, the diameter (D) of the water and sewage pipe (1), which is the standard of the height (H), is based on the intermediate diameter between the minimum and maximum diameters of the water and sewage pipe standards, through which the minimum diameter through the concrete formwork (2). And it allows water and sewage pipes 1 having various diameters between the maximum diameters to be accommodated.

Here, if the vertical height (H) of the side parts (20A, 20B) is less than 1.5 times the diameter (D) of the water and sewer pipe (1), the inside of the concrete cover (2) through the height adjustment device (30) described later There is a risk of damage to the water and sewage pipes (1) in the lower part due to external impact due to the thin cover of the concrete placed on the upper surface of the water and sewage pipes (1) to be seated, and also cannot accommodate the water and sewage pipes (1) of various diameters. Therefore, it is not preferable because the concrete formwork (2) must be separately manufactured according to the diameter (D) of the water and sewage pipe (1).

Conversely, when the vertical height (H) of the side parts (20A, 20B) exceeds the diameter (D) of the water and sewage pipe (1) by 3 times, the overall size of the concrete formwork (2) is increased, and thus transport and Installation is relatively difficult, and since the depth of excavation for burial becomes deeper, the construction time becomes longer, which is undesirable.

On the other hand, the front side of the side portions (20A, 20B), as shown in Figs. 1 and 2, a predetermined size of the anti-settling coupling protrusion 21 is formed to protrude, and the rear side corresponds to the anti-settling coupling protrusion 21 The anti-settling coupling groove 22 of the size is formed.

When assembling a plurality of concrete formwork (2) to be horizontally connected through the anti-settling coupling protrusion 21 and the anti-settling coupling groove 22 as described above, the anti-settling coupling protrusion in the anti-settling coupling groove 22 ( As 21) is inserted, the level of the concrete formwork (2), which is naturally adjacent to each other, is aligned, and at the same time, the concrete formwork (2) is connected to each other even if the ground is irregularly settled, such as differential settlement. You will be able to.

The height adjuster 30 is screwed to the socket 11 installed on the floor 10 to adjust the slope of the water and sewage pipe 1, and at the same time, a constant between the floor 10 and the water and sewage pipe 1 It is a configuration that functions as a spacer to secure space.

This height adjustment device 30 has a predetermined length up and down as shown in Figure 4, while having a screw thread is formed along the outer surface 31, which is installed on the upper end of the screw coupling part 31 It consists of a mounting plate 32 of a predetermined width.

At this time, the seating plate 32 is formed in an arc shape having a predetermined diameter so that both ends are positioned relatively higher than the center portion, through which the water and sewage pipes 1 are seated on the seating plate 32 and then in both directions So that it is not easily displaced.

When adjusting the inclination of the water and sewage pipes (1) through the height adjustment device 30, the seating plate 32 of two or more height adjustment devices 30 located adjacent to each other prior to seating the water and sewage pipes (1) The slope of the water supply and sewer pipes 1 is easily adjusted by seating a wooden or metal frame having a predetermined length to adjust the inclination in advance, and then by placing the water and sewage pipes 1 on the seating plate 32 of the height adjustment port 30. You will be able to fit.

On the other hand, in the above, the mounting plate 32 is shown and described as being integrally fixed to the upper end of the screw coupling part 31, but unlike this, as shown in FIG. 5, the center portion of the mounting plate 32 A hole of a predetermined diameter (no drawing symbol) is formed through the hole, and an insertion groove 32A having a diameter larger than that of the hole is formed around the upper circumference of the hole, and the upper part is caught in the insertion groove 32A. While being fixed, the lower end may be configured to pass downward through the hole so that the fastening member 31A of a predetermined length screwed to the upper end of the screwing portion 31 is assembled.

Even if the height is adjusted by appropriately rotating the screw coupling part 31 through the above configuration, the seating plate 32 is rotated separately from the screw coupling part 31 to fit the outer surface of the water and sewage pipe (1). It can be easily adjusted so that the curved surface of the shape is positioned.

At this time, a square or hexagonal protrusion is formed in the upper or middle portion of the screw coupling part 31 so that a tool such as a wrench for rotating the screw coupling part 31 can be used.

Here, a support plate having a relatively large diameter is provided below the protrusion, and when rotating the screw coupling part 31 by inserting a tool such as a wrench into the protrusion through this support plate, the wrench is rotated in a state supported by the support plate. Ensure that the wrench is prevented from falling downward from the protrusion.

The pipe injury prevention device 40 is floated by the concrete poured into the space between the floor part 10 and the pair of side parts 20A, 20B in which the water and sewage pipes 1 seated in the height adjustment device 30 are placed. It is a configuration to fix the water and sewage pipes (1) so as to be prevented.

Such a tube injury prevention device 40 is formed integrally with the “a” and inverted “a” shaped fasteners 41 and one end of the fasteners 41 as shown in FIG. 6 in a horizontal or vertical direction It includes a catch 42 having a predetermined length.

And the bracket 41 is installed so as to protrude a predetermined length on one side of the pair of side portions (20A, 20B) facing each other, and the bracket 42 is inserted into the inside when the pair of side portions (20A, 20B) are molded. So that the tube injury prevention device 40 is not easily separated by external force.

Through the configuration as described above, the fixing wire 43 is installed to connect the fixing brackets 41 on both sides, and the upper surface of the water and sewage pipe 1 positioned therebetween is supported through the fixing wire 43 (1) injuries are prevented.

On the other hand, a fitting protrusion (B) of a predetermined width and thickness is protruded along the middle part at one end (front side) of the bottom part 10 and the pair of side parts 20A, 20B, and the other end (rear side) is fitted. A fitting groove (S) of a predetermined width and thickness corresponding to the protrusion (B) is formed, and the concrete formwork (2) installed adjacent through the fitting protrusion (B) and the fitting groove (S) overlaps each other by a predetermined width. As it is assembled in a state of being assembled, the concrete poured into the concrete formwork (2) does not leak to the outside.

The concrete formwork for installation of water and sewage pipes of the present invention constructed as described above is an excavation step (S10), a formwork installation step (S20), a slope adjustment step (S30), and a water and sewage pipe seating step (S40) as shown in FIG. , Water and sewage pipe fixing step (S50), concrete pouring step (S60), concrete curing step (S70) and is constructed through the backfill step (S80), and therefore will be described in accordance with the above construction sequence.

(1) Excavation step (S10)

This step is to excavate the ground to a predetermined depth using heavy equipment such as an excavator according to the location where the water supply and sewage pipes (1) will be installed, and the depth and width to be excavated are the dimensions of the concrete form (2) to be constructed and the water and sewage pipes. Follow the landfill regulations in (1).

(2) Formwork installation step (S20)

This step is to insert a pre-fabricated concrete formwork 2 as shown in FIG. 8 into the ground excavated through the excavation step (S10), wherein the concrete formwork 2 is as shown in FIG. Likewise, just assembling a plurality of concrete formwork (2) to be connected in the horizontal direction, one side of the concrete formwork (2) of the anti-settling coupling protrusion (21) of another concrete formwork (2) to prevent the settling coupling groove (22) ), and at the same time, the fitting protrusion (B) of one concrete formwork (2) is inserted into the fitting groove (S) of another concrete formwork (2) and is easily assembled to be horizontal.

(3) Tilt adjustment step (S30)

In this step, after the plurality of concrete formwork (2) is installed horizontally in the excavated ground, the water and sewage pipes (1) are installed by adjusting the height of the plurality of height adjustment devices (30) installed on the floor (10). It is to adjust the slope to be made.

In this tilt adjustment step (S30), the height is adjusted by placing a timber or metal frame having a predetermined length on two or more seating plates 32 and then appropriately rotating the screw coupling portion 31.

At this time, instead of using a timber or metal frame, a string having a predetermined length may be used, and in this case, the string is tightly connected to two or more height adjustment devices 30 and then the height of the screw connection portion 31 is adjusted. The tilt is adjusted.

(4) Water and sewage pipe installation step (S40)

In this step, after the height of the height adjustment unit 30 is adjusted through the slope adjustment step (S30), the water and sewage pipes 1 are seated along the height adjustment unit 30.

(5) Water and sewage pipe fixing step (S50)

In this step, after the water and sewage pipes 1 are installed in the concrete formwork 2 through the water and sewage pipes seating step (S40), as shown in FIG. 10, it is installed on a pair of side parts 20A and 20B. This is a step of fixing the water and sewage pipes (1) so that they are not injured by concrete by connecting the fixing wires 43 to the pipe injury prevention holes 40.

(6) Concrete pouring step (S60)

In this step, after the water and sewage pipes 1 are fixed through the fixing wire 43 through the water and sewage pipe fixing step (S50), as shown in FIG. 11, the concrete formwork 2 and the water and sewage pipes 1 Concrete is to be poured into the inner space between, and at this time, the concrete is poured according to the height of the top of the side portions 20A, 20B, or about 10 to 20 cm lower than the top of the side portions 20A, 20B.

(7) Concrete curing step (S70)

This step is a step of sufficiently curing the concrete for a predetermined period after the concrete is poured into the concrete formwork 2 through the concrete placing step (S60).

(8) Backfill step (S80)

In this step, after the concrete poured through the concrete curing step (S70) is sufficiently cured, as shown in FIG. 12, the soil is covered over the concrete formwork (2) and the excavated ground is flatly backfilled. After the excavated land is completely backfilled, the water and sewage pipe installation work is completed.

On the other hand, in the above, it has been shown and described that the concrete poured through the concrete curing step (S70) is sufficiently cured, and then the backfilling step (S80) is in progress, but unlike this, the concrete is sufficiently cured through the concrete curing step (S70). Even if it is not in a state, as shown in FIG. 13, after covering the cover 50 of a predetermined size on the concrete formwork 2, as shown in FIG. 14, curing the concrete so that the backfilling step (S80) can proceed immediately. A cover installation step (S75) may be further included between the step (S70) and the backfill step (S80).

At this time, the cover 50 is made of concrete and is manufactured in advance according to the size of the concrete formwork 2 in the factory, and this cover 50 is a support part of a predetermined width supported by a pair of side parts 20A, 20B 51 and a locking portion 52 protruding downward to a predetermined thickness between the support portions 51 and inserted between the pair of side portions 20A and 20B.

As described above, the present invention is required to remove the formwork because the concrete formwork installed for concrete pouring is not removed when installing a new water supply and sewage pipe or repairing an existing water supply and sewage pipe. It shortens the time required and the pair of concrete molds that are assembled adjacent to each other are rigidly assembled so that the level is maintained by the anti-settling coupling groove and the anti-settling coupling protrusion, so that damage to the water and sewage pipes due to differential settlement is structurally prevented. Is prevented.

In the above, for the convenience of explanation, the drawings showing the preferred embodiments and the configurations shown in the drawings have been described with reference numerals and names, but this is an embodiment according to the present invention and is It is limited and the scope of the rights should not be interpreted, and the simple substitution with a configuration that has the same effect as a change to a variety of predictable shapes from the description of the invention is within the range that can be changed for easy implementation by a skilled person. You will see it extremely self-evident.

1: Water and sewage pipes 2: Concrete formwork
10: bottom part 11: socket
20A, 20B: side part 21: anti-settling coupling protrusion
22: sinking prevention coupling groove 30: height adjustment
31: screw coupling portion 31A: fastening member
32: mounting plate 32A: insertion groove
40: pipe injury prevention port 41: fixture
42: brace 43: fixing wire
50: cover 51: support
52: locking part B: fitting projection
D: Diameter of water and sewer pipes H: Height of side part
L: Length of side part S: Fitting groove

Claims (5)

A bottom portion 10 having a predetermined width and length horizontally;
A pair of side portions 20A and 20B having one end connected to both side surfaces of the bottom portion 10 and formed to have a predetermined height vertically;
A plurality of height adjusters 30 installed at predetermined intervals along the middle of the upper surface of the bottom 10; And
A pipe injury prevention device 40 which is respectively installed to protrude a predetermined length on one side facing each side of the pair of side portions 20A and 20B;
Including,
In the bottom part 10,
A plurality of sockets 11 having threads formed on the inner surface are installed at predetermined intervals,
The height adjustment device 30,
A screw coupling portion 31 having a predetermined length vertically while being screwed to the socket 11; And
A mounting plate 32 having a predetermined width while being installed on the upper end of the screw coupling portion 31 and having an arc shape having a predetermined diameter in cross section;
Including,
On the mounting plate 32,
A hole having a predetermined diameter through which the middle part is penetrated vertically is formed, an insertion groove 32A having a diameter larger than that of the hole is formed on the upper circumference of the hole, and the upper part is locked and fixed in the insertion groove 32A. While the lower end is provided with a fastening member (31A) of a predetermined length that is screwed to the screwing portion 31 by penetrating downward through the hole,
In the upper or middle portion of the screwing portion 31,
A square or hexagonal protrusion is formed,
Below the protrusion,
A support plate with a relatively large diameter is provided,
At one end of the bottom portion 10 and the pair of side portions 20A, 20B,
A fitting protrusion (B) of a predetermined width and thickness is protruded along the middle part,
At the other end of the bottom portion 10 and the pair of side portions 20A, 20B,
A fitting groove (S) having a predetermined width and thickness corresponding to the fitting protrusion (B) is formed,
Concrete formwork for installation of water and sewage pipes, characterized in that the concrete poured inside through the fitting protrusion (B) and the fitting groove (S) is configured to not leak to the outside.
delete The method according to claim 1,
The tube injury preventing device 40,
Concrete formwork for installation of water and sewage pipes, characterized in that "a" and inverse "a" shaped fasteners (41).
In the water and sewage pipe construction method using the concrete formwork according to claim 1,
Excavation step (S10) of excavating the ground to a predetermined depth so that the water and sewage pipes 1 are installed;
Formwork installation step (S20) of inserting and installing a concrete formwork (2) prepared in advance into the excavated ground along the length;
A slope adjustment step (S30) of adjusting the slope of the water and sewage pipe (1) by using the height adjustment tool (30) of the concrete formwork (2);
A water and sewage pipe seating step (S40) of seating the water and sewage pipes (1) along the height adjustment port (30), which is tilt-adjusted through the slope adjustment step (S30);
A water and sewage pipe fixing step (S50) of fixing the water and sewage pipes (1) seated in the concrete formwork (2) through the water and sewage pipe seating step (S40) through a pipe injury prevention port (40);
Concrete placing step (S60) of placing concrete in the space between the concrete formwork (2) and the water and sewage pipe (1);
A concrete curing step (S70) of curing the concrete poured into the concrete formwork (2) for a predetermined period through the concrete placing step (S60); And
A backfill step (S80) of finishing by backfilling the excavated ground after the concrete is cured through the concrete curing step (S70);
Water and sewage pipe construction method using a concrete formwork for water and sewage pipe installation comprising a.
The method of claim 4,
Between the concrete curing step (S70) and the backfilling step (S80),
Water and sewage pipe construction method using a concrete form for installation of water and sewage pipes, characterized in that it further comprises a cover installation step (S75) of closing the cover 50 along the length of the concrete formwork (2).

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