KR20080091040A - Apparatus and method for repairing sediment in closed conduit - Google Patents

Abstract

An apparatus and method for repairing an underground conduit are provided to apply mortar on the whole surface of the conduit by rotating injection units as moving at a predetermined speed. An apparatus for repairing an underground conduit comprises a vehicle(110), an inner pipe(131), a connector(133), a hose joint(132), an outer pipe(135), a rotating unit, and injection units. The vehicle has right and left wheels(111). The inner pipe rotates on the vehicle and serves as a path for mortar. The hose joint is connected with the inner pipe through the connector. A mortar supply hose is fit to the hose joint. The outer pipe serves as a path for high pressure air supplied from the outside. The rotating unit rotates the inner and outer pipes. The injection units are installed at each front end of the inner and outer pipes, and inject mortar and high pressure air to the inner surface of the conduit.

Description

Apparatus and method for repairing sediment in closed conduit}

The present invention relates to a repairing device and a repairing method for repairing the inside of an underground buried pipe to a shear surface. It can be smoothly plastered for 2nd time and self-propelled in underground buried pipe which can freely adjust mortar thickness inside buried pipe by adjusting mortar injection volume and repair device's forward speed by checking the internal condition of buried pipe through camera. Shear surface repair device and repair method.

As is well known, pipelines are commonly referred to as underground water and sewage pipes, and such pipelines may have cracks on the surface of the pipeline depending on ground subsidence or impact load caused by traffic. Opening phenomenon occurs in the joint, and a step is formed.

Accordingly, because the soil is introduced into the pipeline gradually accumulates, there is a problem that not only hinder the flow of the pipeline, water and sewage flowing inside the pipeline flows out to pollute the soil.

On the other hand, as a repair method for repairing the underground buried pipes such as water and sewage pipes, there are a partial repair method for partially repairing cracks and leaks in the buried pipes, and an overall repair method for repairing the buried pipes as a whole. .

In the partial repair method, the leaks and cracks in the buried pipes are previously investigated in advance, and the waterproofing work is performed on the leaked pipes. The leaks inside the buried pipes are impregnated by impregnating glass fibers and epoxy resin prepared in advance at the factory. And the glass fiber partial repairing method used to compress the cracks, and the total repairing method is a reversal and traction method using hydraulic pressure and air pressure, and a reinforcement is inserted into the buried pipe to leak glass fiber and epoxy resin into the buried pipe. And the whole glass fiber repair method which crimps | bonds to a crack part is used.

However, the repair method in the buried pipe has excessive construction cost due to the large equipment and manpower input, and there is a durability problem that the adhesive part is dropped due to the material property difference between the fume pipe as the buried pipe and the glass fiber as the repair material. There was a difficulty in the construction of the curved part and the curved part of the joint, and the uneven step of the connection part and the lifting part of the leaked part made it difficult to effectively manage the quality and increase the working air and construction cost, as well as the large equipment for the repair work in the construction site. There was a problem that the repair work inside the buried pipe was difficult in the small alley where the work space was small because it had to be put in.

The present invention has been made in order to solve the above problems, an object of the present invention is to spray the mortar with a high pressure injection pressure during the maintenance work inside the buried pipe to effectively adhere to the inner peripheral surface of the buried pipe, the inside of the buried pipe By rotating the injection hole through the rotation means while rotating at a speed, the mortar is sprayed repeatedly on the inner circumference of the buried pipe so that the thickness of the mortar can be maintained evenly, thereby improving the construction quality. In addition, the purpose is to provide a self-propelled shear surface repair device and repair method in the underground buried pipe that can significantly improve workability by reducing the working time.

Self-propelled shear surface maintenance device in the underground buried pipe of the present invention for achieving the above object, the body portion provided with a rotatable wheel on the left, right; Drive means installed in the vehicle body part to drive the wheels; A passage through which mortar supplied from the outside is conveyed, the inner tube rotatably installed in the vehicle body part; A connecting connector fixed to the vehicle body part and rotatably connected to a rear end of the inner tube; A hose connecting pipe connected to a rear end of the connecting connector and fitted with an external mortar supply hose; An outer tube disposed outside the inner tube and into which high-pressure air is supplied; A gear box to which the rear end of the outer tube is rotatably coupled; A rotation means engaged with the rear end of the outer tube via the gear box to rotate the inner and outer tubes; It is formed at the front end of the inner, outer tube, including the injection hole for injecting the mortar and high-pressure air conveyed through the inner, outer tube to the inner peripheral surface of the buried pipe, is injected from the injection hole rotated through the rotating means It is characterized in that it is configured to spray the mortar at high pressure on the inner peripheral surface of the buried pipe using high pressure air.

Here, the injection hole may be further provided with a nozzle cap for adjusting the injection angle of the mortar, the nozzle cap, the nozzle portion in communication with the injection port of the inner, outer pipe is injected with high-pressure air and mortar, and It is formed on the outside of the nozzle portion and may be configured to include an annular edge portion for adjusting the injection angle of the mortar sprayed with the high-pressure air.

In addition, the first plasterboard made of a flexible material that can smoothly plaster the surface of the mortar sprayed on the inner circumferential surface of the buried pipe while rotating with the injection hole on the front side spaced from the injection hole is further installed, the first One plasterboard can be comprised so that a plurality may be installed radially.

In addition, a second plastering plate made of a flexible material may be installed at the front end of the outer tube in which the injection hole is positioned, and may smoothly plaster the surface of the mortar sprayed on the inner circumferential surface of the buried pipe while being rotated together with the injection hole. The stool plate may be installed in a direction perpendicular to the spraying direction of the mortar.

On the other hand, the present invention may be further provided with a guide means for guiding the hose for the mortar supply, the guide means is coupled to the guide body and the guide body which is supported on the lower portion of the buried pipe, and the buried A screw supported on the upper portion of the pipe, and rotatably installed on one side of the guide body and may comprise a roller for guiding the mortar supply hose.

In addition, the present invention is disposed on the upper part of the manhole is further provided with a hoisting means for hoisting the mortar supply hose at a constant speed, the hoisting means may be provided with a reducer.

In this case, the lifting means may include a support plate, a first lifting roller rotatably installed on the support plate, a lifting motor for rotating the first lifting roller, a second lifting roller slidably installed on the support plate, and the It may be configured to include a spacing adjusting screw screwed to the support plate to move the second hoisting roller.

On the other hand, self-propelled shear surface repair method in the underground buried pipe according to the present invention for achieving the above object, the excavation step of removing obstacles in the underground buried pipe using an excavating device; A shockcrete step of attaching mortar to the inner circumferential surface of the buried pipe in a state where the obstacle is removed by rotating spraying with mortar; A plastering step of smoothly plastering the mortar attached to the inner circumference of the buried pipe through a plastering plate is rotated, the shockcrete step and the plastering step is characterized in that it is performed sequentially through one repair device.

In this case, the present invention may further comprise a water removal step of removing the water accumulated in the buried pipe using an adsorption cloth after the excavation step.

In addition, the present invention may further comprise a waterproofing step of waterproofing the cracked site by spraying a waterproofing agent on the cracked site in the buried pipe after the water removal step.

According to the present invention having the above-described configuration, the mortar spraying means of the repairing device is formed in a double tube structure of an inner tube through which the mortar is pumped and an outer tube through which the high pressure air is pumped, thereby burying the mortar using high pressure spray air. Since it can be sprayed on the inner circumferential surface with high spraying pressure, the adhesiveness of mortar can be improved.

In addition, the present invention is repeatedly sprayed mortar while moving the maintenance device at a constant speed, by spraying a certain amount of mortar per unit on the inner peripheral surface of the buried pipe to maintain a constant spray thickness, the rotational speed of the mortar spraying means And by controlling the feed rate of the repair device there is an advantage that can be properly adjusted the thickness of the mortar attached to the buried pipe. In particular, as the camera to observe the front and rear in the repair device is installed, the mortar spraying unit and the advancing speed of the repair device by checking the internal situation of the buried pipe through the camera to adjust the repair mortar inside the buried pipe The thickness can be adjusted freely.

In addition, since the present invention is to be able to perform the mortar and shock work of mortar at the same time using a single repair device, the work speed is significantly higher than the conventional repair method that had to perform the above work separately It is faster and workability is remarkably improved.

In addition, the present invention can be expected to reduce the manpower and construction costs by using an automated injection device and a mechanized construction system, there is an advantage that can be installed in a small pipe. In addition, there is an effect that the process is simple and the construction period is shortened by mechanized repair work in the buried pipe.

In addition, the present invention is easy to maintain and maintain the old pipe is integrated with the ground concrete constituting the buried pipe because the repair and reinforcement using the mortar material of the same physical properties as the old old pipe, excellent effect to the internal mortar reinforcement method of the new production pipeline You can expect In addition, since the present invention uses domestic cement mortar that has been used for a long time, it is environmentally friendly, and is excellent in economy, stability, durability, and the like due to mechanized construction.

In addition, a nozzle cap and an air passage are formed at the end of the injection port through which the mortar and the high-pressure air is injected, the nozzle cap formed with the air passage, the air passage is formed so as to meet inside the nozzle portion, through the air passage Since the high pressure air to be injected can be uniformly injected at high pressure in the state directly mixed with the mortar injected through the nozzle unit, there is an advantage that the injection pressure of the mortar can be increased more effectively.

In addition, by forming an annular rim projecting forwardly on the outside of the nozzle portion of the nozzle cap, since the injection angle of the mortar sprayed through the nozzle is limited within a predetermined range by the annular rim, the protruding length of the annular rim By properly adjusting, the spray angle of the mortar can be properly adjusted.

In addition, the present invention by installing a plastering head having a plurality of plasterboard radially arranged on the front side spaced apart from the front end of the injection means, a plurality of rotating in parallel with the mortar shock work by the injection means The plasterboard can smoothly plaster the mortar surface attached to the inner peripheral surface of the buried pipe. As such, since the mortar spraying means and the plastering head are rotated at the same time, the plastering can be performed immediately after spraying the mortar, so that the plastering work can be effectively performed, and the overall size of the repair apparatus can be maintained compactly.

In addition, since the plastering plate of the present invention is made of a flexible flexible material, the end of the plastering plate is bent at the time of plastering work, the contact area is widened to the inner wall of the buried pipe, the plastering work can be more effective, various It can be applied to tubes of different shapes and sizes.

In addition, by installing another plastering plate in a direction perpendicular to the spraying direction of the mortar in order to plaster the surface of the mortar sprayed in the buried pipe in front of the outer tube in which the mortar injection hole is located, the mortar is sprayed to a certain thickness and the The sprayed mortar surface can be smoothly polished for 1st and 2nd time by the plasterboard provided in two places. That is, the first plastering of the surface of the mortar is performed through the first plastering plate at the same time as the spraying of the mortar, and then the second plastering process and the compacting work can be performed through the second plastering plate, thereby increasing the plastering efficiency. It is possible to increase the adhesion of mortar to the inner surface of the buried pipe, it is possible to remove the irregularities of the sprayed mortar surface and to keep the surface smooth to a certain thickness.

In addition, by providing a guide means for guiding the hose for the mortar supply hose to change the direction of the buried pipe from the lower part of the manhole, the hose is a corner part of the end of the wound buried pipe to prevent the hose from contacting the inner wall of the manhole It is possible, and by appropriately adjusting the height of the screw provided in the guide means there is an advantage that can be secured to the guide means firmly and easily to the buried pipe having a tube size of various sizes.

In addition, by installing a winding means for winding the mortar supply hose at a constant speed in the upper part of the manhole, the winding radius of the winch gradually increases in the process of winding the hose on the winch, so that the winding speed is increased. Since the winding speed can be kept constant at all times, it is possible to prevent the hose from suddenly pulling or loosening and to prevent the hose from being damaged. In addition, since the feed rate of the repair vehicle connected to the hose can be constantly maintained, there is an effect of maintaining a constant thickness of the repair mortar inside the buried pipe. In addition, the hoisting means can be applied to the hose of various sizes regardless of the diameter of the hose because it is to adjust the gap between the two hoisting rollers through the gap adjusting screw.

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

For reference, the embodiment of the present invention to be described below it is to be clear that the present invention is an improvement of the prior art patent application No. 10-2007-0033936.

1 is a state diagram of using the self-propelled shear repairing device in the underground buried pipe according to a preferred embodiment of the present invention, Figure 2 is a perspective view of the repair device of Figure 1, Figure 3 is a partially separated perspective view of Figure 2, Figure 4 2 is a partial side view of the repair device, FIG. 5 is a plan view of FIG. 2, FIG. 6 is a rear view of the nozzle cap of FIG. 2, FIG. 7 is a front view of the nozzle cap of FIG. 6, and FIG. 8 is a state of use of the repair device of FIG. 2. 9 is a front view of the plastering head of FIG. 2, and FIG. 10 is a rear view of the repair apparatus of FIG. 2.

As shown in Figure 1 to 10, the self-propelled shear surface maintenance device 100 in the underground buried pipe according to an embodiment of the present invention, the body portion 110 is provided with a wheel 111 rotatable on the left, right ), A driving means 118 installed in the vehicle body part 110 to drive the wheels 111, spraying means 130 for spraying mortar supplied from the outside onto the inner circumferential surface of the buried pipe, and the spraying means. It is configured to include a rotating means 140 for rotating at a constant speed.

In the present invention, the guide means 200 for guiding the mortar supply hose 4 for supplying the mortar to the injection means 130 of the repair device 100, and the hoist for supplying the mortar 4 It is provided on the lifting means 300 and the ground is provided with a support vehicle 400 for supplying various drive sources such as repair material, such as mortar, compressed air and hydraulic power, power to the repair device 100.

The injection means 130 is provided in the form of a double tube having a predetermined length, the inner tube 131 rotatably installed in the vehicle body 110 as a passage through which the mortar supplied from the outside is conveyed, and the inside The inner and outer tubes 131 are formed at the front end of the outer tube 135 and the inner and outer tubes 131 and 135, which are disposed outside the tube 131 and are supplied with high pressure air from the outside. The injection port 136, 137 for spraying the mortar and the high-pressure air pumped through the 135 at a high pressure to the inner peripheral surface of the buried pipe (1).

The connector 100 is fixed to the vehicle body 110 and connected to the rear end of the inner tube 131 so as to be rotatable, and to the rear end of the connection connector 133. A hose connecting pipe 132 into which the mortar supply hose 4 is fitted, a gear box 139 to which the rear end of the outer pipe 135 is rotatably coupled, and the outer pipe through the gear box 139. Rotating means 140 is engaged with the rear end of the 135 to rotate the inner and outer tubes 131 and 135.

Hemispherical wheels 111 are rotatably mounted on the front and rear sides of the vehicle body 110, respectively, and the wheels 111 are driving means installed in the vehicle body 110. FIG. Driven by 118.

That is, the rotating shaft of the driving means 118 is connected to the rotating shaft of the rear wheel 111 and the chain 113, the rotating shaft of the rear wheel 111 is again the front wheel 111 through another chain. ) Is connected to the structure. Therefore, the front and rear wheels 111 are interlocked by the driving means 118, and the repair device 100 is capable of traveling in four-wheel drive.

At this time, the driving means 118 may be an actuator driven by various driving methods such as electric, pneumatic or hydraulic, but in this embodiment, a driving motor using electricity is employed.

On the other hand, on the rotary shaft 112 of the rear wheel 111, a clutch 114 for temporarily blocking power transmission between the front and rear wheels is provided.

The clutch 114 includes a first member 114a connected to the rear left wheel 111 and a second member 114b connected to the rear right wheel 111. In addition, the fitting groove 115 is formed in the first member 114a, and the fitting protrusion 116 is formed in the fitting groove 115 in the second member 114b. In addition, an insertion groove 117 is formed along the circumferential direction on the outer circumferential surface of the second member 114b.

In addition, the upper plate coupled to the upper portion of the vehicle body 110 is provided with a separate operation means 120 to operate the clutch 114.

The operation means 120 is installed through the upper plate of the vehicle body 110 to enable the lever operation in the left and right direction of the vehicle body 110, the operation means 120 is outside the vehicle body 110 The handle 121 is disposed, the two insertion protrusions 123 disposed inside the vehicle body 110 and inserted into the insertion groove 117, and are formed in an arc shape so that the two insertion protrusions 123 and the handle ( It consists of a connection portion 122 for connecting 121.

Accordingly, when the user moves the handle 121 of the operation means 120 to the right in the upper portion of the vehicle body 110, the fitting protrusion 116 is fitted into the fitting groove 115 to the rear left and right wheels 111 Are connected to each other and normal driving is made, while moving the handle 121 to the left side, the fitting protrusion 116 is separated from the fitting groove 115 so that the rear left and right wheels 111 are disconnected. Therefore, even if the rear left wheel 111 is rotated, the rear right wheel 111 is not rotated.

On the other hand, after the inner tube 131 of the injection means 130, the hose connecting pipe 132 into which the mortar supply hose 4 is fitted through the connection connector 133 fixed to the vehicle body 110 by bolts. Connected.

In addition, a bearing is provided in the connection connector 133 such that the rear end of the inner tube 131 is rotatable with respect to the hose connection tube 132.

The rotation means 140 is disposed in the front-rear direction on the rear side inside the vehicle body 110, and the rotation means 140 is an electric motor that is operated through electricity supplied from the outside. In addition, the rotation means 140 is connected to the outer tube 135 through the gear box 139.

The first gear (not shown) coupled to the rotating shaft of the rotation means 140 and the second gear (not shown) engaged with the rear end of the outer tube 135 in the gear box 139 is engaged with the first gear. ) Is provided, and a through hole is formed in the second gear to penetrate the inner tube 131. In addition, the front and rear of the gear box 139, the bearing (B) and the inner tube 131 for supporting the outer tube 135 so that the outer tube 135 and the inner tube 131 can be rotated stably. Bearing (B) for supporting the is installed. In addition, the gear box 139 is connected to the air supply hose 3 is to supply air to the outer tube (135).

On the other hand, in the injection means 130, the front end of the outer tube 135 and the inner tube 131 is branched in both directions opposite to each other to form a structure of the overall shape "T", the inner, outer tube Mortar and high-pressure air pumped through the 131 and 135 are sprayed to both sides through the injection holes 136 and 137 at the ends of the inner and outer tubes 131 and 135.

At this time, the nozzles 136 and 137 of the injection means 130 is provided with a nozzle cap 160 for adjusting the injection angle of the mortar.

The nozzle cap 160 communicates with the injection holes 136 and 137 of the inner and outer pipes 131 and 135 so that the high pressure air and the mortar are sprayed, and the nozzle part 161. It is formed on the outside of the annular edge portion 165 for adjusting the injection angle of the mortar is injected with the high-pressure air.

That is, the nozzle cap 160 is formed in the central portion of the nozzle portion 161 which is in communication with the injection port 136 of the inner tube 131 is a cylindrical hole in which mortar is injected, and around the nozzle portion 161 An air passage 162 is formed to communicate obliquely between the nozzle portion 161 and the injection hole 137 of the outer tube 135. At this time, the air passage 162 has a structure in which a plurality of radially formed around the nozzle unit 161 is formed.

As such, the air passage 162 is formed to meet the inside of the nozzle unit 161, so that the high pressure air injected from the air passage 162 is directly mixed with the mortar sprayed through the nozzle unit 161. This can increase the mortar injection pressure more effectively.

In addition, the nozzle cap 160 is formed around the nozzle portion 161 to be inclined in a conical shape, and an annular edge portion 165 is formed to protrude a predetermined length toward the nozzle cap 160 on the edge of the outside of the nozzle portion 161. do.

Since the annular rim 165 prevents the mortar sprayed through the nozzle 161 from being excessively spread around the spray, when the projection length of the annular rim 165 is properly adjusted, the spray angle of the mortar Can be adjusted appropriately within a certain range.

In addition, the front side of the nozzle unit 161 is provided with a groove 166 into which a tool is inserted to screw the nozzle cap 160 to the ends of the injection holes 136 and 137 using a tool or the like. Accordingly, if necessary, the nozzle cap 160 may be easily detached to the injection holes 136 and 137 using a hand or a tool.

At this time, the rear surface of the nozzle cap 160 is provided with a circular sealing member 163 having a plurality of through-holes communicating with the air passage 162. The sealing member 163 effectively seals between the nozzle cap 160 and the injection holes 136 and 137 of the injection means 130.

 On the other hand, the upper surface of the body portion 110 is rotated in all directions, the camera 150 is installed so that the front or rear of the repair device 100 can be photographed.

The camera 150 is connected to the display (monitor) of the support vehicle 400 to allow a worker to check the situation inside the buried pipe 1 on the ground.

Such a camera 150 can effectively control the driving of the repair device 100 to work while moving backwards, it is possible to accurately know the repair position can also be effective repair work.

In addition, by photographing the shape of the inner wall of the buried pipe (1) with the camera 150, even if the inner wall of the buried pipe (1) is uneven, the mortar (M) surface can be formed evenly by increasing or slowing the feed rate of the injection means (130). Will be.

On the other hand, the repair device 100 of the present invention is further installed with a plastering head 170 to smoothly smooth and smooth the uneven surface of the mortar sprayed on the inner peripheral surface of the buried pipe (1) while being rotated with the injection means (130).

The plastering head 170 is configured to include a joint portion connected to the injection means 130 and a plurality of first plastering plate 175 installed in the radial direction to the joint portion.

The joint portion is a universal joint 171 installed at the front end of the injection means 130, a connecting rod 172 of the annular shape connected to the universal joint 171 through a fixing pin, and the connecting shaft 172 is penetrated And a connection pipe 173 coupled to the connection shaft 172 and a fixing pin, and a fixing plate 174 protruding in a cross (+) shape on the outer circumferential surface of the connection pipe 173.

The first plastering plate 175 is provided in the form of a plate made of a flexible material such as rubber, and is bolted to an end of the fixing plate 174.

As such, the plastering head 170 and the injection means 130 are detachably pivoted by the universal joint 171 so that the plastering head 170 can be detached from the injection means 130 at any time.

In addition, the plastering work of the mortar may be more effective because the contact area with the mortar attached to the inner wall of the buried pipe 1 is widened by bending the end of the first plasterboard 175 made of a flexible material And, there is an advantage that can be applied in common to the buried pipe (1) of various diameters.

On the other hand, in the present invention, in the buried pipe (1) located in the lower manhole is provided with a guide means for guiding the mortar supply hose (4) connected to the rear of the repair device (100).

11 is a perspective view showing a guide means according to the invention, Figure 12 is a state diagram of the use of the guide means, Figure 13 is a front view of FIG.

As shown in FIGS. 11 to 13, the guide means 200 includes a hose and an electric wire such as a mortar supply hose 4 and an air supply hose 3 which are connected to the rear side of the injection means 130. H) and the camera wire (not shown) is disposed in the transfer direction is switched to prevent the hose and the electric wire and the camera wire connected to the maintenance device 100 to be damaged by the edge of the buried pipe (1) end. .

Specifically, the guide means 200 is a screw coupled to the guide body 210 is supported on the lower inner surface of the buried pipe (1), and to be moved up and down to the guide body 210 up and down And a roller 230 rotatably installed at one side of the guide body 210 to guide the mortar supply hose 4.

The guide body 210 is installed in a portion close to the manhole (2) in the buried pipe (1), the upper plate (212) for connecting the upper side of the side plate 211 and the side plate (211) on both sides are spaced apart from each other And a spacing member 213 to maintain the spacing between the side plates 211. The side plate 211 is formed with a protrusion 214 in the upper front. The spacer 213 is provided with bolts and screws, and is installed at the front upper and lower portions and the rear upper and lower portions of the side plate 211, respectively.

The screw 220 is screwed to the top plate 212, the screw handle 221 is installed on the top. Through the screw handle 221, the operator can easily rotate the screw 220 with respect to the upper plate 212 can easily adjust the height of the screw 220. In addition, due to such a screw 220, the guide means 200 can be firmly and easily fixed to pipes of various sizes.

In addition, a support plate 222 formed to be curved in an arc shape is installed at an upper end of the screw 220 to increase the frictional force with the inner wall of the buried pipe 1, so that the guide means 200 is firmly fixed in the buried pipe 1. Can be.

In addition, the lower end of the screw 220 is provided with a locking member 223 provided with a nut or the like, so that when the screw 220 is rotated to the limit height, the screw 220 can no longer be separated from the guide body 210. have.

In addition, the roller 230 is rotatably installed at the protruding portion 214, and is disposed below the manhole 2. As the roller 230 is disposed in this way, the hose and various wires may contact the inner wall of the buried pipe 1 or the inner wall of the manhole 2 to prevent the hoses and wires from being worn and damaged. It becomes possible to pass effectively through (2) and buried pipe (1).

On the other hand, the present invention is further provided with a hoisting means (300) disposed on the upper part of the manhole (2) for hoisting the mortar supply hose (4) at a constant speed.

14 is a perspective view showing the hoisting means according to the present invention, FIG. 15 is a plan view of FIG. 14, FIG. 16 is a left side view of FIG. 14, and FIG. 17 is a right side view of FIG. 14.

As shown in Figure 14 to 17, the hoisting means 300 is a support plate 320, the first lifting roller 330a rotatably installed on the support plate 320, and the first lifting roller 330a ), The winch motor 310 for rotating the winch motor, the reducer 312 connected to the winch motor 310, the second winch roller 330b slidably installed on the support plate 320, and the support plate 320. Is coupled to include a gap adjusting screw 340 for moving the second hoisting roller (330b).

The support plate 320 is disposed on both sides, and each corner portion of both support plates 320 is connected to each other by the support frame 322. In addition, the guide plate 321 is formed through the support plate 320 in the front-rear direction.

The first hoisting roller 330a and the second hoisting roller 330b have a hose or a seating groove 331 in which various wires are seated along the circumference of the roller. As described above, the seating grooves 331 are formed in plural so as to be spaced apart from each other along the longitudinal direction of the roller, and thus, the hoses and various lines may be simultaneously wound.

In addition, the first hoisting roller (330a) and the second hoisting roller (330b) is a hoisting operation by forming a plurality of minute projections in the portion where the seating groove 331 is formed in contact with the hose or various lines to increase the friction force This can be done effectively.

In addition, the first hoisting roller 330a and the second hoisting roller 330b are provided with fixed bearings 333 and moving bearings 332 on one side, respectively, and gears 334 on the other side.

The fixed bearing 333 is installed to be fixed to the support plate 320 so that the first hoisting roller 330a can be effectively rotated with respect to the support plate 320.

The movable bearing 332 is fixedly installed in the gap adjusting screw 340, and is inserted into the guide groove 321 and slides with respect to the support plate 320 together with the second lifting roller 330b.

In addition, the first hoisting roller 330a and the second hoisting roller 330b are provided with gears 334 at the other end thereof so that two gears 334 mesh with each other so that the first hoisting roller 330a rotates. The hoisting roller 330b may also be rotated to make the hoisting operation more efficient.

The hoisting motor 310 shaft is provided with a self reducer 311, in addition to the self reducer 311, a separate reducer 312 is connected, and the reducer 312 is connected with a first winch roller 330a. . Therefore, the rotational force of the hoisting motor 310 is decelerated and transmitted to the first hoisting roller 330a.

Thus, the hoisting means 300 is provided with a reducer 312 to always maintain the hoisting speed of the hose at a constant speed to prevent the hose is suddenly pulled or loosened to prevent damage to the hose.

The gap adjusting screw 340 is installed on the moving bearing 332, screwed to the support plate 320.

And the end of the gap adjusting screw 340, the handle is formed in the shape of a wheel so that the operator can easily rotate the gap adjusting screw 340, the gap between the first hoisting roller (330a) and the second hoisting roller (330b) To adjust easily. Due to the provision of such a space adjusting screw 340 has the advantage that can be wound in a hose or wire having a variety of diameters.

The support vehicle 400 may include an air compressor (not shown) for injecting high pressure air into the repair device 100, a D / C battery (not shown) for supplying power, and an image of the camera 150. A display (not shown) and a winch (not shown) for winding the hose and a control panel (not shown) for controlling these are provided to support the repair apparatus 100.

On the other hand, Figure 18 shows a repair device structure according to another embodiment of the present invention, as shown, the repair device 100 of the present invention in the repair device 100 structure of Figure 2 described above, the injection means The second plasterboard 180 may be further installed to smoothly surface the surface of the mortar sprayed on the inner circumferential surface of the buried pipe 1 in front of the outer pipe 135 where the injection holes 136 and 137 of the 130 are positioned. can do.

The second plasterboard 180 is made of a flexible material similar to the first plasterboard 175 described above, and the installation direction of the injection holes 136 and 137 on the front outer peripheral surface of the outer tube 135, that is, Bolted to the end of the fixed plate 181, which is placed in a direction perpendicular to the injection direction of the mortar, is rotated with the injection holes 136, 137 when the injection means 130 is rotated and injected to the inner peripheral surface of the buried pipe (1) Smooth the surface of the mortar.

The repair device 100 uses the second plastering plate 180 and the first plastering plate 175 for the mortar (M) applied to the inner circumferential surface of the buried pipe 1 through the rotating injection holes 136 and 137. Because it can be plastered sequentially two times, the efficiency of plastering can be improved, and the plastered surface is smooth and the mortar compacting effect can be obtained.

In addition, the repair apparatus of the present invention may be used by attaching only the second plasterboard 180 to the front end of the injection means 130, without connecting the plastering head 170 to the front end of the injection means 130 in the structure of FIG. have.

On the other hand, Figures 19 to 22 is a configuration of the excavation device 10 to remove various obstacles in the buried pipe 1, prior to the maintenance work of the buried pipe 1 by the repair device 100 of the present invention 19 to 22, the excavation device 10 for excavating the inside of the buried pipe 1 includes a rear body 31 to which electricity is supplied from an external support vehicle, and the rear body. The front body 51 is spaced apart a predetermined distance in front of the 31 and is rotatably mounted to the front body 51 and the front body 51 and the rear body 31 are coupled to the rear body 31 so as to rotate left and right. Wheels 160 and 21, an excavation head 71 rotatably installed in front of the front body 51, and support means installed to support the rear body 31 in the buried pipe. It is configured to include.

The rear body 31 has a pair of wheels 21 installed at the front and rear, respectively, and a drive motor 27 connected to a power supply of an external support vehicle to drive the front and rear wheels 21 therein. ) And a reducer 28 for reducing the rotational force of the drive motor 27 at a constant rotation rate.

The rotation shaft of the drive motor 27 is connected to the reduction gear 28 by the chain 41, the reduction gear 28 is connected to the rotation shaft 56 of the rear wheel 21 by the chain 43, The rotary shaft 56 of the rear wheel 21 is connected by the rotary shaft 57 of the front wheel 21 and the chain 29, so that the rotational force of the drive motor 27 passes through the reducer 28 The rotary shaft 57 of the front wheel 21 connected to the rotary shaft 56 of the rear wheel 21 in the state of being decelerated at a predetermined rotation ratio and connected to the rotary shaft 56 of the rear wheel 21 is rotated. Through the four-wheel drive of the front and rear wheels (160) (21), the forward and backward action of the rear body (31) is made.

Such an excavation device is driven by an electric motor (or hydraulic motor) speed controller (inverter) installed in the reducer 28 in the rear body 31 and the external support vehicle 300 separately installed for driving speed reduction. It is possible to adjust the speed.

The upper plate 12 is coupled to the upper surface of the rear body 31 through a bolt, and the support means is installed on the upper plate 12 so as to support the rear body 31 in the buried pipe.

The support means includes a support cylinder 45 for advancing and retracting the internal piston shaft up and down through pneumatic or hydraulic pressure supplied from an external support vehicle, a support plate 54 coupled to an upper end of the piston shaft, and the support plate 54. It is configured to include a support wheel (42) rotatably coupled to the upper surface of the bracket (55).

The support wheel 42 is rotatable in the horizontal direction together with the support plate 54, the forward and backward movement of the rear body 31 through the rolling action in a state of being supported in contact with the upper inner peripheral surface of the buried pipe (1) To guide you.

The support cylinder 45 is fixed inside the support cylinder accommodating part 40 installed on the rear body 31. That is, the support cylinder accommodating portion 40 is seated on the upper plate 12 of the rear body 31, the support cylinder accommodating portion 40 is horizontally (horizontal) through the rotating shaft 52 installed on the inner bottom surface (horizontal) Direction) is provided to enable rotation.

The connecting plate 60 is coupled to the front side of the support cylinder accommodating portion 40 so that the support cylinder accommodating portion 40 can rotate left and right about the rotation shaft 52. At this time, the front portion of the connection plate 60 has a structure protruding a predetermined distance toward the front side of the front body 51.

A pair of wheels 160 are provided on left and right sides of the front body 51, and one side of the front body 51 is provided with an excavation head rotating motor 53 for rotating the excavating head 71.

The drilling head rotary motor 53 is connected to the gear box 62, the center of the front side of the gear box 62 has a structure in which the drilling head 71 is rotatably coupled.

The gear box 62 is configured to rotate the excavation head 71 while the rotation shaft of the excavation head rotating motor 53 is engaged with the hollow rotation shaft 154 through the internal gears.

The fixed pipe 155 is installed inside the hollow rotating shaft 154.

A slide plate 16 is installed at a lower rear side of the gear box 62, and a vertical plate 63 is fixed to be perpendicular to an upper surface of the slide plate 16. And, the upper portion of the vertical plate 63 is coupled to the horizontal plate 61 is connected to the connecting plate 60 of the rear body 31. At this time, the horizontal plate 61 is coupled to be parallel to the slide plate 16.

When the horizontal plate 61 is coupled to the connecting plate 60, the horizontal plate 61 is disposed below the predetermined distance from the bottom of the connecting plate 60, and the horizontal plate 61 and the connecting plate 60 are separated from the top. Through the vertical connection member 168 is coupled to each other to enable left and right rotation. At this time, the horizontal plate 61 and the connection plate 60 is formed with an insertion hole through which the vertical connection member 168 can be inserted.

On the other hand, a slide base 14 on which the slide plate 16 of the front body 51 is seated is attached to the lower front side of the rear body. A pair of first vertical plates 18 are coupled to the left and right sides of the front body 31 of the rear body 31. In addition, the second vertical plate 64 is located between the first vertical plate 18 when the front body 51 and the rear body 31 are coupled to the upper surface of the slide plate 16 of the front body 51. ) Are combined.

At this time, the second vertical plate 64 has a structure in which two sides thereof are opposite to the vertical plate 63 and the slide plate 16 to stand vertically and fixed at opposite sides of the horizontal plate 61. Then, the horizontal connecting member 171 in the form of a bolt is coupled to penetrate horizontally through the first vertical plate 18 and the second vertical plate 64.

In addition, a first elastic spring 172 is interposed between the first vertical plate 18 and the second vertical plate 64. At this time, the horizontal connection member 171 is coupled through the first elastic spring 172 interposed between the first vertical plate 18 and the second vertical plate 64.

In addition, between the connecting plate 60 and the horizontal plate 61 is inserted into the vertical connecting member 168, the second elastic spring 170 is elastically supported between the connecting plate 60 and the horizontal plate 61 is further Is installed.

On the other hand, the rear body 31 is provided with a separate angle limiting means for limiting the left and right rotation of the connecting plate 60 to a predetermined angle. That is, in one form of the angle limiting means, the guide shaft 48 is coupled to the left and right sides of the support cylinder accommodating portion 40 seated on the rear body 31 in the form of protruding to the outside, the rear The left and right side surfaces of the body 31 are coupled with a guide plate 47 having a guide groove 67 having a long hole shape into which the guide shaft 48 is inserted. In this case, a third elastic spring 49 is inserted into the guide shaft 48 so as to be elastically supported between the left and right sides of the support cylinder accommodating portion 40 and the guide plate 47, thereby supporting the support cylinder accommodating portion 40. When the left and right rotation is made, the elasticity of the third elastic spring 49 is returned to its original position.

On the other hand, the excavation head 71 is mounted on the front body 51 has a cross-sectional shape of a conical shape, the shape viewed from the front is formed radially like a wheel bar, the excavation process by the excavation head 71 Sediment sludge to be crushed at is discharged to the rear through the space between the radial body of the excavation head (71).

In addition, the diameter of the excavation head 71 is formed to be substantially the same size as the inner diameter of the buried pipe, the cutter portion of the bar shape in which a plurality of cutters 74 are arranged in a row on the front inclined surface of the excavating head (71) 72 form a combined structure through the bolts.

That is, a plurality of grooves are formed at regular intervals so as to attach the plurality of cutters 74 to the rod-shaped cutter portion 72, and the cutters 74 are not separated while the cutters 74 are inserted in the grooves. It is to be bolted to the butt sticking bar (75) in the form of a rod, so that the bar-shaped cutter portion 72 itself is bolted to the excavation head (71) body.

The drilling head 71 of this configuration is screwed to the tip of the hollow rotary shaft 154 installed in the center of the gearbox 62, the hollow rotary shaft 154 is screwed to the drilling head 71 is installed therein Between the fixed pipes 155, a high-pressure water passage 65 through which high-pressure water supplied from the outside (possibly high-pressure air may be formed) is formed, and the excavation during excavation at the front center portion of the excavation head 71 A plurality of nozzles 79 in communication with the high-pressure water passage 65 are provided so that the high-pressure water can be injected to the front side of the head 71. In addition, the rear side of the front body 51 is provided with a spout 50 for injecting high-pressure water into the high-pressure water passage (65). Accordingly, the high pressure water supplied along the high pressure water passage 65 at the time of excavation in the buried pipe by the excavation head 71 may be sprayed on the entire surface of the deposit through the nozzle 79 at the distal end, thereby easily crushing the deposit. .

In addition, in some cases, by injecting the washing water through the high-pressure water passage 65, it is possible to wash the oil strip attached to the inside of the buried pipe (1), and at the same time as the washing process by the washing water excavation head ( When the 71 is rotated, the brush installed on the outer circumferential surface of the excavation head 71 is rotated at a high speed so that foreign matters can be easily removed.

In addition, the irradiation camera 89 is installed at the tip of the fixed pipe 155 inside the hollow rotating shaft 154 to easily grasp the situation inside the buried pipe 1 through a monitor from the ground.

A transparent cover is coupled to the front side of the excavation head 71 in which the camera 89 is installed to protect the camera 89 from foreign substances such as debris generated during the excavation process or high-pressure water sprayed, and the camera 89 In the center of the distal end of the excavation head 71 is installed is a cap 66 having a plurality of cutters 74 for excavation on the outer surface detachably coupled.

In addition, the outermost outer peripheral surface of the excavation head 71 is provided with a guide roller 162 serving as a support and guide along the inner peripheral surface of the buried pipe during excavation according to the rotation of the excavation head (71). The guide roller 162 is to act as a rolling force, and to maintain the center of gravity of the excavation head 71 and the front body 51 at the same time it is also responsible for preventing the damage inside the buried pipe. .

Excavation device 10 having the above-described configuration is connected to the rear body 31 and the front body 51 through the vertical connection member 168 to be able to rotate in the horizontal direction and at the same time to be able to move in the vertical direction The excavator flexibly moves the front body 51 and the rear body 31 of the excavator along the longitudinal and longitudinal deflection portions of the buried pipe irrespective of the straight and curved buried pipes or the stepped portion of the buried pipe connection. As the excavation work is performed.

In addition, the excavation device 10 performs the excavation work while appropriately adjusting the rotational speed of the excavation head 71 and the forward speed of the excavation device according to the type of deposit and the amount of deposition in the excavation work in the buried pipe. Can be done. In addition, the high-pressure water is sprayed in the excavation process to clean the inside of the pipe, and at the same time, the pulverized pulverized material is moved to the lower manhole to dredge.

Hereinafter, the shear surface repair method inside the underground buried pipe using the excavation device 10 and the repair device 100 having the above-described configuration will be described.

First, prior to the input of the repair device 100 of the present invention, the injection of the excavation device 10 that can perform various obstacle removal work in the buried pipe 1 should be preceded.

That is, by inserting the excavation device 10 of the present invention described in Figure 19 to 21 into the underground buried pipe (1) inside the solid deposits, mortar, protruding branch pipe, tree root and buried pipe connection inside the buried pipe Various obstacles, such as a shift | offset | difference step part, are grind | pulverized, and it wash | cleans.

Since the excavation device 10 is configured to be detachably coupled to the rear body 31 and the front body 51 and bendable in the longitudinal and horizontal directions, the curved buried pipe 1 or the buried pipe connection portion is displaced. Irrespective of the stepped portion, the front body 51 and the rear body 31 of the excavating device flexibly move along the longitudinal and horizontal deflection portions of the buried pipe 1 to perform the excavation work. At this time, the high-pressure water is sprayed in the excavation process to clean the inside of the pipe and move the pulverized pulverized material to the lower part of the manhole to dredge suction.

In some cases, a certain level of water may accumulate in the lower part of the buried pipe 1 due to cracks or leaks in the buried pipe 1, or high pressure water (clean water) sprayed during the excavation process. In this way, when water is accumulated in the buried pipe 1, the water removal operation is additionally performed by using an absorbent cloth or the like.

At this time, the water removal job by the adsorption cloth can be performed by using the repair device 100 of the present invention, a plurality of adsorption cloth to the body portion 110 or the mortar supply hose 4 of the repair device 100, and the like. In the process of moving to the rear of the repair device 100 may be provided to adsorb and remove the water accumulated in the buried pipe (1).

In addition, when cracks such as cracks are present in the buried pipe 1, a cracking agent may be applied to the cracks in the buried pipe 1 to waterproof the cracked areas.

At this time, the waterproofing agent can be carried out using the repair device 100 of the present invention, by applying a waterproofing agent instead of mortar to the spraying means 130 to be rotated to apply spray coating to the cracks in the buried pipe (1) Can be.

Thus, when the excavation work in the buried pipe (1) as well as the water removal work and the waterproofing work is completed, the repair device 100 of the present invention is put into the buried pipe (1) to repair the inner wall of the buried pipe (1) Done.

The repair device 100 performs a mortar coating (shockcrete) and a series of repair work on the inner circumferential surface of the buried pipe 1 while moving from the front side to the rear side of the buried pipe 1 as opposed to the above-described drilling device 10. do.

Here, the spraying process of mortar by the spraying means 130 of the present invention having a double pipe structure will be described in detail. That is, the mortar, which is conveyed to the inner tube 131 of the injection means 130 through the mortar supply hose 4, passes through the injection holes 136 and 137 in front of the inner tube 131, and the nozzle of the nozzle cap 160. The high pressure air injected through the unit 161 and simultaneously pumped into the outer tube 135 through the air supply hose 3 is injected into the nozzles 136 and 137 in front of the outer tube 135 and the nozzle cap ( After passing through the air passage 162 of 160, the nozzle portion 161 is injected in a mixed state with mortar.

In this way, the mortar can be adhered to the inner circumferential surface of the buried pipe 1 at a high injection pressure by using high-pressure injection air, so that the mortar can be improved in adhesion.

In addition, since the nozzle unit 161 is rotated at a constant speed by the rotation means 140 and the repair apparatus 100 is transported backward at a constant speed, the mortar (M) injected is buried. It is evenly applied to the inner circumferential surface of (1).

On the other hand, in parallel with the shock-creating work on the inner peripheral surface of the buried pipe (1) by the injection means 130 through the plastering head 170 disposed on the front side of the injection means 130 is made of mortar plastering work, As the plastering head 170 is rotated in conjunction with the spraying means 130, the first plastering plate 175 rotates to smoothly plaster the curved surface of the mortar surface applied to the inner surface of the buried pipe 1. It is applied to the inner circumferential surface of the buried pipe 1 with a constant thickness.

As described above, since the present invention is capable of simultaneously performing mortar shockcrete and plastering work using one repair apparatus 100, the present invention has to be performed in comparison with the conventional repairing procedure, which had to be performed separately. The work speed is much faster and workability is greatly improved.

In addition, in the process of performing the shockcrete and plastering work while the repair device 100 of the present invention is moved backward, the wire and mortar supply hose (4) connected to the rear of the repair device 100 is buried pipe (1) Since it is guided and transported through the roller 230 of the guide means 200 supported at the end, the wire 4 or the mortar supply hose 4 is in contact with the end edge portion of the buried pipe 1 in the process of being transferred to wear Can be prevented.

In addition, the wires and hoses 4 guided by the guide means 200 and conveyed are two first hoisting rollers 330a which are rotated at a constant speed of the hoisting means 300 installed on the manhole 2. Since it is pressurized while being sandwiched between the second winding rollers 330b, the winding radius of the winch is gradually increased in the process of winding the wire and the hose 4 in the winch installed in the support vehicle 400, even though the winding speed is changed. Since the winding speeds of the wires and the hoses 4 are always kept constant by the means 300, the reverse speed of the maintenance vehicle 100 can be kept constant.

In addition, the wires and hoses 4 are not twisted by the guide means 200 and the lifting means 300 in the process of transferring the wires and the hoses 4, so that the operation can be made quickly and smoothly, and the wires and the hoses are damaged. Can be prevented.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications or variations of the present invention without departing from the spirit and scope of the invention described in the claims below Can be carried out.

1 is a state diagram using the self-propelled shear surface repair apparatus in the underground buried pipe according to a preferred embodiment of the present invention.

Figure 2 is a perspective view of the repair device of Figure 1;

3 is a partially separated perspective view of FIG. 2.

Figure 4 is a side view of the repair device of Figure 2;

5 is a plan view of FIG. 4.

6 is a rear view of the nozzle cap of FIG.

7 is a front view of the nozzle cap of FIG.

8 is a state of use of the maintenance device of FIG.

9 is a front view of the plastering head of FIG.

10 is a rear view of the repair device of FIG.

11 is a perspective view of the guide means of FIG.

12 is a state diagram using the guide means of FIG.

13 is a front view of FIG. 12.

14 is a perspective view of the lifting means of FIG.

FIG. 15 is a plan view of FIG. 14;

FIG. 16 is a left side view of FIG. 14; FIG.

17 is a right side view of FIG. 14;

18 is a perspective view of a self-propelled shear surface repair apparatus in an underground buried pipe according to another embodiment of the present invention.

19 is a perspective view of the self-propelled shearing surface drilling device in the buried pipe according to the present invention.

20 is a side cross-sectional view of FIG. 19.

21 is a top view of FIG. 19.

Figure 22 is a use state showing the state of excavating the buried pipe using the excavation device of the present invention.

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

1: buried pipe 2: manhole

3: air supply hose 4: mortar supply hose

100: repair device 110: body part

111: wheel 112: axis of rotation

113: chain 114: clutch

115: fitting groove 116: fitting protrusion

117: insertion groove 118: drive means

120: operation means 121: handle

122: connecting portion 123: insertion projection

130: injection means 131: inner tube

132: hose connector 133: connection connector

135: outer tube 136,137: injection hole

139: gear box 140: rotation means

150: camera 160: nozzle cap

161: nozzle portion 162: air passage

163: sealing member 165: annular frame

170: Plastering head 171: Universal joint

172: connecting shaft 173: connecting pipe

174,181: fixing plate 175,180: 1st, 2nd plastering

200: guide means 210: guide body

211: side plate 212: top plate

213: spacer 214: protrusion

220: screw 221: screw handle

222: support plate 223: locking member

230: roller 300: lifting means

310: hoisting motor 311: self-reduction gear

312: reducer 320: support plate

321: guide groove 322; Support frame

330a: 1st hoisting roller 330b: 2nd hoisting roller

331: seating groove 332: mobile bearing

333: fixed bearing 334: gear

340: Space adjusting screw 341: Handle

Claims (10)

Body parts provided with wheels rotatable on the left and right sides; Drive means installed in the vehicle body part to drive the wheels; A passage through which mortar supplied from the outside is conveyed, the inner tube rotatably installed in the vehicle body part; A connecting connector fixed to the vehicle body part and rotatably connected to a rear end of the inner tube; A hose connecting pipe connected to a rear end of the connecting connector and fitted with an external mortar supply hose; An outer tube disposed outside the inner tube and into which high-pressure air is supplied; A gear box to which the rear end of the outer tube is rotatably coupled; A rotation means engaged with the rear end of the outer tube via the gear box to rotate the inner and outer tubes; It is formed at the front end of the inner, outer tube, and comprises a injection port for injecting the mortar and high-pressure air conveyed through the inner, outer tube to the inner peripheral surface of the buried pipe, Self-propelled shear surface repairing device in an underground buried pipe, characterized in that configured to inject high pressure mortar on the inner circumferential surface of the buried pipe by using the high pressure air injected from the injection port rotated through the rotating means. According to claim 1, wherein the nozzle is further provided with a nozzle cap for adjusting the injection angle of the mortar, The nozzle cap, It comprises a nozzle in communication with the injection port of the inner, outer tube and the high pressure air and mortar is injected, and an annular edge formed on the outside of the nozzle portion to control the injection angle of the mortar sprayed with the high pressure air Self-propelled shear surface repair device in the underground buried pipe, characterized in that. The method of claim 2, The first plasterboard made of a flexible material is installed on the front side spaced apart from the injection hole to smoothly plaster the surface of the mortar sprayed on the inner circumferential surface of the buried pipe while rotating with the injection hole. The first plasterboard is a self-propelled shear surface repair apparatus in the underground buried pipe, characterized in that a plurality of radially installed. The method of claim 2 or 3, At the front end of the outer tube in which the injection hole is located, a second plasterboard is made of a flexible material that can smoothly plaster the surface of the mortar sprayed on the inner circumferential surface of the buried pipe while being rotated together with the injection hole. The second plasterboard is self-propelled shear surface repair apparatus in the underground buried pipe, characterized in that installed in a direction perpendicular to the spraying direction of the mortar. The method according to claim 1 or 2, The guide means for guiding the mortar supply hose is further installed, The guide means, A guide body supported at the lower portion of the buried pipe; A screw coupled to the guide body to be lifted and supported on an upper portion of the buried pipe; The self-propelled shear repairing surface in the underground buried pipe, characterized in that it is rotatably installed on one side of the guide body and comprises a roller for guiding the hose for supplying the mortar. The method according to claim 1 or 2, It is disposed on the upper part of the manhole is further provided with a lifting means for hoisting the mortar supply hose at a constant speed, The hoisting means is self-propelled shear surface maintenance device in the underground buried pipe, characterized in that it comprises a reducer. The method of claim 6, wherein the hoisting means, A support plate; A first hoisting roller rotatably installed on the support plate; A hoisting motor for rotating the first hoisting roller; A second hoisting roller slidably mounted to the support plate; Self-propelled shear surface repairing device in the underground buried pipe, characterized in that it comprises a spacing adjusting screw screwed to the support plate to move the second hoisting roller. An excavation step of removing obstacles in the underground buried pipe using an excavation device; A shockcrete step of attaching mortar to the inner circumferential surface of the buried pipe in a state where the obstacle is removed by rotating spraying with mortar; Plastering step of smoothly plastering the mortar attached to the inner circumference of the buried pipe through the plastering plate is rotated, The shockcrete step and the plastering step is a self-propelled shear surface repair method in the underground buried pipe, characterized in that performed sequentially through a single repair device. The self-propelled shear surface repair method of the underground buried pipe according to claim 8, further comprising a water removing step of removing water accumulated in the buried pipe using an adsorption cloth after the excavating step. 10. The self-propelled shear surface repair in the underground buried pipe according to claim 8 or 9, further comprising a waterproof step of waterproofing the cracked part by spraying a waterproofing agent on the cracked part of the buried pipe after the water removing step. Method.

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