KR101003467B1 - Non-excavation repairing apparatus for long section of sewer pipe using carriage and packer and methods for the same - Google Patents

Abstract

PURPOSE: A non-excavation repair apparatus for the conduit of a long range by using a trolley and a packer is provided to easily repair a curve area by moving in a curved section of a sewage pipeline. CONSTITUTION: A non-excavation repair apparatus for the conduit of a long range by using a trolley and a packer comprises following steps. A bogie(110) is located in a sewage pipeline. Circular arc-shaped frames(111) of the bogie have curvature corresponding to the inner surface of the sewage pipeline. The frames are longitudinally connected by a connecting member(112). Each frame is turned at a fixed angle. A packer(120), covered with repair material, is prepared. The packer is loaded in the bogie and moved to a repair section. The bogie is separated from the packer in the repair section. The compressed air is injected into the packer and the packer is swelled to be pressed to the inner surface of the sewage pipeline, so the repair material is hardened.

Description

Non-excavation repairing apparatus for long section of sewer pipe using carriage and packer and methods for the same}

The present invention relates to a non-excavation repair device and construction method of the long section using the bogie and the packer, and more particularly, the bogie can easily move the curved section of the sewer pipe, and the bore can easily repair the long sewer pipe. It is related to the non-excavation repairing device and construction method in the long section using packers.

In general, sewage pipes buried underground such as concrete fume pipes, vinyl chloride pipes made of synthetic resin, and conduits have defects such as cracks, breakage or disconnection due to aging of the pipe itself, ground subsidence, or earth pressure change from the ground. Can be generated. When such a defect occurs in the sewage pipe, waste water and the like flowing through the sewage pipe flow out into the ground through the defective portion. Spilled waste water contaminates soil and groundwater.

The method for repairing the faulty sewer pipe is appropriately selected depending on the nature of the damaged area and the ambient conditions. For example, as a method for repairing sewer pipes buried underground, there is an excavation repair method for excavating and repairing the ground, and a non-excavation repair method for repairing through a manhole without excavating the ground. Among them, the non-excavative repair method is classified into a grouting method or a lining method according to the characteristics of the damage site of the sewer pipe and the surrounding conditions.

The lining method of the above method is a damage repairing material (lining material) when the damage degree is severe and the reinforcing function is required, for example, if the damage site of the sewer pipe is widely distributed, or if the damage site is formed while covering the entire inner diameter of the sewer pipe (lining material) Lining the inner wall of the pipeline to temporarily reinforce the damaged area.

The repairing apparatus used for the lining method generally includes a cylindrical frame and a packer provided around the frame. That is, wrap the reinforcement around the packer and put the repair device in the section to be repaired in the sewer pipe, inject compressed air into the packer and attach the reinforcement to the inner surface of the sewer pipe.

However, the repair device is put into the manhole while the frame and the packer are integrally coupled, there is a problem that can not be put into the sewer pipe when the length of the repair device exceeds a certain length. For example, the repair device cannot be manufactured to have a length of 1 m or more. Therefore, when the length of the repair section of the sewer pipe is more than 1m, it is not possible to repair the section more than 1m at once.

In addition, when the repair section of the sewer pipe is a curved section, there is a problem that the repair device is difficult to repair by moving the sewer line of the curved section.

The present invention has been made to solve the above problems, it is convenient to move the curved section of the sewer pipe, as well as easy to repair the curved section of the long section using the non-excavation repairing device and construction method using the bogie and packer Its purpose is to.

Still another object of the present invention is to provide a non-excavation repairing apparatus and a construction method of a long section using a bogie and a packer capable of repairing a long section of 1 m or more.

In order to achieve the above object, the long-term conduit non-excavation repair method using the bogie and the packer of the present invention, (a) is provided with arc-shaped frames having a predetermined length and the curvature corresponding to the inner surface of the sewer pipe, Positioning a trolley in which the frames are connected in the longitudinal direction by a connecting member so that the frames are rotated by a predetermined angle in the sewer pipe; (b) preparing a packer having the repair material wrapped on an outer surface thereof; (c) carrying a packer on the balance and moving it to a repair target section; (d) separating the truck from the packer in the repair target section; (e) injecting compressed air into the packer and expanding the packer to be in close contact with the inner surface of the sewer pipe to cure the repair material; (f) restoring the packer when the repair material is cured and restoring the packer to its original shape and then seating on the trolley; And (g) towing the bogie to draw the packer.

Preferably, the step (b), (b1) by injecting compressed air into the packer to expand the cylindrical shape after wrapping the repair material; And (b2) when the repair material is attached to the packer, restoring the air of the packer to restore the original shape.

Preferably, the bogie is further provided with a fixed cylinder for fixing the bogie to the sewer pipe, in the step (f), the cylinder shafts provided on both sides of the fixed cylinder in close contact with the sewage pipe to fix the bogie to advance the packer Rest on the balance.

Preferably, the packer is made of a rubber material so that the upper side is recessed to the lower side and the lower side has a curvature corresponding to that of the inner surface of the sewer pipe, and is highly expanded.

On the other hand, in the long section conduit non-excavation repair apparatus using the bogie and the packer according to the present invention, the arc-shaped frame having a predetermined length and the curvature corresponding to the inner surface of the sewer pipe is connected in the longitudinal direction by the connecting member It includes a bogie configured to rotate each frame at a predetermined angle when passing through the curved section of the sewer pipe.

Preferably, a fixed cylinder is further installed on at least one of the frames such that the bogie is fixed to the sewer pipe, and a pair of cylinder shafts provided in the fixed cylinder selectively reciprocate with respect to the sewer pipe so that the end of the cylinder shaft is connected to the sewer pipe. Pressurize against.

Preferably, it is further provided with a packer seated on the inner surface of the trolley, a repair material is provided to surround the outer circumferential surface, and expands to be in close contact with the inner surface of the sewer pipe by the inflow of compressed air.

Preferably, the packer is made of a rubber material so that the upper side is recessed to the lower side and the lower side has a curvature corresponding to the inner surface of the sewage pipe, and is highly expanded, wherein the packer is made to have a cylindrical shape when primary expanded. In the case of secondary expansion, the outer peripheral surface is made to be in close contact with the inner surface of the sewer pipe.

The non-excavation repair and construction method of the long section using the bogie and the packer according to the present invention has the following effects.

First, the curved section of the sewer pipe can be easily moved and the repair of the curved section is easy.

Second, long sections over 1m can be repaired at one time.

The present invention will be described in detail with reference to the following drawings, but these drawings illustrate preferred embodiments of the present invention, and the technical concept of the present invention is not limited to the drawings and should not be interpreted.
1 is a flow chart illustrating a process of repairing a sewer pipe using a non-excavation repair apparatus according to a preferred embodiment of the present invention.
Figure 2 is a perspective view showing a non-excavation repair apparatus according to a preferred embodiment of the present invention.
3 is a flow chart illustrating a process of preparing a packer provided with a repair material in a non-excavation repair method according to a preferred embodiment of the present invention.
4 to 7 are cross-sectional views sequentially showing the repair of the sewer pipe using the repair device of FIG. 2.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a flowchart illustrating a process of repairing a sewer pipe using a non-excavation repair device according to a preferred embodiment of the present invention, and FIG. 2 is a perspective view of the repair device.

Referring to the drawings, the repair device 100 according to the present invention includes a packer 120 in which a plurality of frames 111 are connected to a bogie 110 and a repair material 125 wrapped on an outer surface thereof.

The method using the repair device 100 includes the step (S10) of placing the bogie 110 in the sewer pipe, preparing the packer 120 wrapped with the repair material ('125' in FIG. 4), and The packer 120 is loaded on the trolley 110 and moved to the repair target section (S30), and the step of separating the packer 120 and the truck 110 at the repair target section (S40) and the packer 120. Injecting and expanding air (S50), waiting for the repair material 125 to cure (S60), removing the air of the packer 120 (S70), and removing the air packer 120 ) And the step (S80) of mounting the packer 120 and the bogie 110 to the outside (S80) for seating on the trolley 110. Hereinafter, each step will be described in more detail with reference to FIGS. 4 to 7.

First, the bogie 110 is prepared by injecting it through the manhole (S10). The trolley 110 has arc-shaped frames 111 having a predetermined length and a curvature corresponding to the inner surface of the sewer pipe 1 and a connecting member 112 connecting the frames 111.

The trolley 110 has at least two frames 111 and is connected in the longitudinal direction by the connection member 112. At this time, each of the frames 111 is rotated by a predetermined angle by the connecting member 112. That is, the frames 111 connected by the connecting member 112 may easily move the curved section as the predetermined angle is rotated by the connecting member 112 even though the curved section passes through the sewer pipe 1 when moving.

At least one of the frames 111 is provided with a fixed cylinder 115 for fixing the truck 110 to the sewer pipe (1).

The fixed cylinder 115 has a pair of cylinder shafts 116 that selectively reciprocate. That is, the cylinder shaft 116 is expanded and the end thereof is in close contact with the sewer pipe (1), the bogie 110 is fixed to the sewer pipe (1).

On the other hand, CCTV camera 118 is further installed on the outermost frame 111 in the forward direction to move the sewer pipe (1), the end portion of the outermost frame 111 in the reverse direction is made to be curved downward. The end portion of the frame 111 is formed to be curved to easily mount the packer 120 to be described later on the cart 110.

Unexplained reference numeral '119a' is a rope for towing the bogie, '119b' is a towing ring in which the rope is installed.

As shown in FIG. 4, the connecting member 112 is installed at a lower side of the frame 111, and includes a rotation bar 112a for connecting a neighboring frame 111, and both ends of the rotation bar 112a. It is provided with the pin 112b installed in it. That is, the pivoting bar 112a is installed to be rotated below the frame 111 by the pin 112b between the neighboring frames 111. In this case, the frames 111 are connected by the connection member 112 in a state spaced apart a predetermined interval. This is because the angle at which the frames 111 are rotated is changed according to the contact with the neighboring frame 111 when the frames 111 are rotated. Therefore, the frames 111 may be connected to the rotation bar 112a coupled by the pin 112b and rotated by a predetermined angle.

In addition, the connection member 112 should be installed in a state that does not protrude from the inner surface of the frame 111. This is to prevent the packer 120 seated on the inner surface of the frame 111 from being in contact with the connection member 112 to damage the repair member 125.

On the other hand, the frame 111 is shown and described as being made to be rotated relative to the pin 112b by being connected by the rotation bar 112a of the connecting member 112, but is not limited to this, the frames As long as the 111 is rotated at a predetermined interval, any structure may be employed. For example, it may be made of various connection structures, such as coupling by a spring (not shown), articulated cone coupling.

In addition, wheels 115 are installed on the outer surface of each frame 111 to travel along the sewer pipe 1 in a state spaced apart from the sewer pipe 1.

On the other hand, the frames 111 are selectively connected according to the range of the repair target section of the sewer pipe (1) can be adjusted the length of the bogie 110. In this case, the frames 111 are preferably connected in the manhole after each frame 111 is input through the manhole in a non-connected state. This is because the frames 111 cannot be inserted into the manhole while being coupled to have a long length.

In addition, before injecting the trolley 110 through the manhole, it is preferable to proceed with the step of cleaning and / or dredging the sewer pipe (1) and confirming where the maintenance is necessary.

That is, the step of cleaning and / or dredging the sewer pipe (1). By removing the sediment and the waste inside the sewer pipe (1) to accurately find out the position that needs to be repaired, and to make the injection of the repair device 100 and the attachment of the repair material 125 easily. The cleaning and dredging is a process that is usually included in the repair and reinforcement method of the sewer pipe (1), so detailed description thereof will be omitted.

In addition, when the cleaning / dredging process of the sewage pipe (1) is completed, a CCTV robot (not shown) is put into the sewage pipe (1) to find a location that requires repair. The CCTV robot is a device for photographing the inside of the sewage pipe (1) and transmitting to the outside, the camera robot and a lighting to illuminate the inside of the sewage pipe (1). The step of checking where the repair is required is to set the number for connecting the frames according to the range of the repair section. As for the CCTV robot, its structure is disclosed in Korean Patent Registration No. 10-0536013.

Subsequently, the packer 120 in which the repair material 125 is wrapped is prepared (S20).

The packer 120 includes an inlet 121 through which compressed air is introduced and an outlet 125 through which compressed air is discharged. In this case, the compressed air supply pipe 122 is connected to the inlet 121 of the packer 120, and the compressed air discharge pipe 126 is connected to the outlet 125. The packer 120 is configured to have a length that is connected to the frame 111, that is, a length corresponding to the balance 110. More preferably, the packer 120 has a length capable of repairing a repair section for repairing.

Meanwhile, the packer 120 is selectively provided with a wire 129 for controlling the movement of the packer 120. The wire 129 will be described below.

The packer 120 is formed such that its upper side is recessed to the lower side and the lower side has a curvature corresponding to the inner surface of the sewer pipe 1, which will be described below.

Then, a process of preparing the packer 120 wrapped with the repairing material 125 as described above will be described with reference to FIG. 3.

First, preparing the repair material 125 impregnated with the medicine to wrap the repair material 125 on the outer peripheral surface of the packer 120 (S21). Here, the repair material 125 is widely used in the lining reinforcement method of the sewer pipe (1), the construction of the Republic of Korea Utility Model Registration No. 0291634 and the like is disclosed. Preferably, the repair material 125 is a resin impregnated with glass fiber.

Preferably, before wrapping the repair material 125 in the packer 120, compressed air is injected into the packer 120 to primary expansion to a predetermined size. Compressed air is supplied to the packer 120 through the compressed air supply pipe 122 and the inlet 121. In this case, the 'predetermined size' refers to a size that is easy to surround the packer 120 with the repair material 125. For example, the primary expanded packer 120 has a cylindrical shape by inflating the upper concave portion to have the same curvature as the lower curvature. Thus, the water retainer 125 may be uniformly wrapped around the packer 120.

Next, when the water retainer 125 is attached to the packer 120, the air of the packer 120 is discharged to restore the original shape (S22). That is, the air remaining in the packer 120 is discharged to the outside using the discharge pipe 126 installed in the discharge port 125. At this time, the air discharge of the packer 120 may be discharged to the outside using a vacuum suction device (not shown). Discharging the air remaining in the packer 120 is a state in which the repair material 125 wrapped in the packer 120 is transformed into the same shape as the packer 120 so that the repair material 125 is attached to the packer 120. This is to maintain. That is, in order to prevent the packer 120 from being interrupted in the process of being introduced into the sewer pipe 1 or the manhole, the repair material 125 is not separated from the packer 120.

On the other hand, before the step (S22) may further proceed to the step of wrapping the repair material 125 with the nonwoven fabric 130.

Subsequently, the packer 120 having the water retaining material 125 formed therein is introduced into the sewer pipe 1 through the manhole and seated on the trolley 110 to be moved to a position requiring repair (S30). The trolley 110 may be moved by traction of the rope 119b or by driving means (not shown) installed in the trolley 110. At this time, the outside of the worker through the CCTV camera 118 installed on the cart 110 to move the cart 110 while observing the state of the sewer pipe (1).

Subsequently, when the bogie 110 moves to the repair target section, the bogie 110 is separated from the packer 120 (S40). At this time, the tension is applied to the wire 129 installed in the packer 120 to prevent the packer 120 from moving together with the trolley 110 to separate the trolley 110. In addition, the trolley 110 can be easily separated from the packer 120 by the nonwoven fabric 130 surrounding the repair material 125.

The trolley 110 separated from the packer 120 is preferably separated so that the curved portion at the rear thereof is located in front of the packer 120, that is, the front portion. This is to easily seat the packer 120 on the cart 110 after the repair section is repaired by the packer 120.

When the trolley 110 is separated, compressed air is injected into the packer 120 and swollen (S50). The compressed air is injected through the compressed air supply pipe 122. Due to the inflow of compressed air, the packer 120 is expanded to be in close contact with the sewer pipe 1, and the repairing material 125 and the nonwoven fabric 130 wound at the packer 120 are in close contact with the inner surface of the sewer pipe 1. In this case, the packer 120 is first expanded to have the same curvature as the sewer pipe 1 by injection of compressed air, and then secondly expanded to closely contact the inner surface of the sewer pipe 1.

On the other hand, the packer 120 is preferably made of a rubber material to high expansion. Accordingly, even when the curved section is moved, it can be easily bent along with the rotation of the bogie 110, and the repair of the curved section can be facilitated.

After injecting compressed air into the packer 120, the expanded packer 120 is maintained as it is until the repair material 125 is cured (S60). At this time, the medicine is penetrated into the non-woven fabric 130 surrounding the repair material 125 is cured together with the repair material 125 is utilized as a repair material.

When the hardening of the repair material 125 is completed, the compressed air in the packer 120 is removed (S70), and the packer 120 from which the air is removed is seated on the trolley 110 (S80). At this time, the bogie is fixed to the sewer pipe before the packer is seated on the bogie. That is, the balance can be fixed by using the fixed cylinder installed in the balance.

More specifically, looking at the process of seating the packer 120 to the trolley 110, first, the end of the pair of cylinder shaft 116 is inflated to the cylinder shaft 116 so as to be in close contact with the sewer pipe (1) Fix 110.

Next, the packer 120 is advanced and seated on the trolley 110. At this time, as the end portion of the frame 111 installed at the rear of the trolley 110 is bent downward, the packer 120 may move smoothly and may be seated on the trolley 110.

When the packer 110 is seated, the cylinder shaft 116 of the fixed cylinder 115 is contracted and converted into a movable state.

When the packer 120 is seated on the trolley 110, the packer 120 is pulled to draw the packer 120 and the trolley 110 to the outside of the sewer pipe 1 (S90).

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1: Sewage pipe 100: Repair device
110: Balance 120: Packer
125: repairing material 130: nonwoven fabric

Claims (8)

(a) having a predetermined length and having arc-shaped frames having curvatures corresponding to the inner surface of the sewer pipe, wherein the frames are connected in the longitudinal direction by the connecting member so that the frames are rotated by a predetermined angle in the sewer pipe; Making a step;
(b) preparing a packer having the repair material wrapped on an outer surface thereof;
(c) carrying a packer on the balance and moving it to a repair target section;
(d) separating the truck from the packer in the repair target section;
(e) injecting compressed air into the packer and expanding the packer to be in close contact with the inner surface of the sewer pipe to cure the repair material;
(f) restoring the packer when the repair material is cured and restoring the packer to its original shape and then seating on the trolley; And
(g) towing the bogie to draw the packer;
In the step (a), the trolley is manufactured to have a length of 1m or more by inserting the frames through the manhole and then connecting to the connecting member, the end of the outermost frame located at the rear of the trolley is formed to be curved downward,
In step (b),
(b1) wrapping the repair material after inflating the packer with compressed air to expand the cylindrical shape; And
(b2) when the repair material is attached to the packer, restoring the packer's air to restore its original shape so that the repair material is not separated from the packer;
The packer is a non-excavation repair method, characterized in that the upper side is recessed to the lower side and the lower side has a curvature corresponding to the inner surface of the sewer pipe, and made of a rubber material so as to be highly expanded. delete The method of claim 1,
The bogie is further provided with a fixed cylinder for fixing the bogie to the sewer pipe,
In the step (f),
Non-excavation repair method characterized in that the cylinder shafts provided on both sides of the fixed cylinder is in close contact with the sewer pipe to secure the truck and then advancing the packer to seat on the truck. delete A bogie configured to have arc-shaped frames having a predetermined length and a curvature corresponding to the inner surface of the sewer pipe connected in the longitudinal direction by a connecting member such that the frames rotate at a predetermined angle when passing through the curved section of the sewer pipe; And
A packer seated on the trolley and provided with a repair material to surround the outer circumferential surface thereof and expanded to be in close contact with the inner surface of the sewer pipe by inflow of compressed air.
Each frame has a size that can be put into the manhole, assembled with each other to form a bogie 1 m or more in length,
The packer is made of a rubber material so that the upper side is recessed downward so that the repair material is not separated from the packer, and the lower side has a curvature corresponding to the inner surface of the sewer pipe, and is highly expanded.
The packer is made to have a cylindrical shape when the primary expansion, the non-excavation repair device, characterized in that the outer circumferential surface is in close contact with the inner surface of the sewer pipe when the secondary expansion. The method of claim 5,
A fixing cylinder is further installed on at least one of the frames so that the truck is fixed to the sewer pipe.
And a pair of cylinder shafts provided in the fixed cylinder are selectively reciprocated with respect to the sewer pipe so that the end of the cylinder shaft is pressed against the sewer pipe. delete delete

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