KR101137553B1 - Manhole repairing method for preventing noise and dust - Google Patents

Abstract

The present invention can maximize the work efficiency by making the manhole repair work simple and fast, as well as to prevent noise and scattering dust from spreading to the outside during the manhole repair process to minimize damage due to noise and scattering dust. The present invention relates to a low noise and non-excavated manhole repair method using a noise, scattering dust shield and a manual manhole frame lifting device.
In the low noise and non-excavation manhole repair method according to the present invention, a pair of hinge coupling pieces 420 are radially provided with a rim 410 provided at regular intervals on the upper and lower surfaces, and a rim 410 disposed at an upper and lower intervals. The noise and scattering dust blocking device 400 consisting of a support 440 hinged between each hinge coupling piece 420 and a blocking plate 450 attached to an outer surface of the rim 410 by magnetic force are to be repaired. Installed in the upper part of the manhole 100; After the installation of the noise and scattering dust blocking device 400, in the noise and scattering dust blocking device 400, the manhole peripheral road surface cutting step (S1) is carried out; In the noise and scatter dust blocker 400, the manhole frame lifting step (S2) is carried out; After the manhole frame lifting step (S2), within the noise and scattering dust blocking device 400, the manhole peripheral finishing step (S4) is characterized in that proceeds.

Description

Manhole repairing method for preventing noise and dust using noise and scattering dust blocking device and manual manhole frame lifting device

The present invention relates to a low noise and non-excavated manhole repair method, which maximizes work efficiency by allowing manhole repair work to proceed easily and quickly, and also prevents noise and scattering dust from propagating to the surroundings. The present invention relates to a low noise and non-excavated manhole repair method using a noise and scattering dust blocking device and a manual manhole frame raising device , which can minimize damage or complaints caused by noise and scattering dust .

Underground, sewage pipes, water pipes, cables (electric power, communication), etc. are buried, and manholes for their maintenance are installed on the road.

The manhole is initially installed at the same level as the road surface. After the manhole is installed, the manhole is settled below the road surface, and the road is repaired or repaired. Since a step is generated between road surfaces, there is a problem that causes trouble to passers-by and traffic to and from the vehicle.

Therefore, when the manhole is settled, the manhole repair work is performed to raise the settled manhole so that the top surface of the manhole is positioned at the same height as the road surface.

In general, such manhole repair work includes cutting the manhole periphery road surface to cut the road surface of the subsided manhole, excavating the manhole periphery to excavate the sub-cut surface, and lifting the manhole frame out of the manhole. Manhole frame lifting and repositioning steps to adjust the repositioning height of the manhole frame by performing a predetermined operation, and the manhole periphery finishing step to finish with ascon or concrete mortar around the manhole in which the manhole frame is reinstalled.

As such, the conventional manhole repair work consisting of cutting the manhole periphery, excavating the manhole periphery, raising and repositioning the manhole frame, and closing the manhole periphery restores the manhole frame that has been submerged from the road surface to the previous height, There was a problem in that it took considerable time and manpower for the repair work, a problem of low work efficiency, and considerable noise and scattering dust in the process of manhole repair, causing damage to those around them.

In order to solve this problem, a manhole repair tool dedicated devices such as manhole peripheral road surface cutting device, manhole frame lifting device, manhole peripheral finishing device has been developed and used.

However, the conventional manhole peripheral road surface cutting device, manhole frame lifting device, and manhole peripheral finishing device has a problem that the manhole repair work is not performed efficiently, the damage caused by noise and scattering dust generated during the manhole repair work There was a problem following.

For this reason, there have been many attempts to develop new methods to maximize the work efficiency and to prevent the noise and scattering dust generated during the manhole repair work from propagating to the surroundings, but until now, satisfactory results have not been obtained. to be.

The present invention has been proposed in view of this point, and as the manhole repair work proceeds rapidly, the work efficiency is significantly improved than before, and the noise and scattering dust generated during the work are prevented from propagating far out of the workplace. The purpose is to provide a low noise and non-excavated manhole repair method using a noise and scattering dust blocker and a manual manhole frame lifting device that can minimize the damage caused by dust.

Low noise and non-excavated manhole repair method using the noise and scattering dust blocking device and the manual manhole frame lifting device according to the present invention for achieving the above object,

A pair of hinge coupling pieces having a hinge through hole are arranged in the upper and lower portions so that a plurality of rims are provided at a plurality of upper and lower surfaces along a circumferential direction, and rims and rims arranged at upper and lower intervals are fixed to each other. The noise and scattering dust blocking device is composed of a plurality of struts, one end of which is fitted to each hinge coupling piece and coupled by a hinge, and a plurality of blocking plates attached to the outer surface of the rim by the magnetic force of the magnetic body. It is installed on the upper part of the target manhole, the lower surface facing the noise and scattering dust blocking device facing the repair target manhole is open and the remaining surface is installed on the upper part of the maintenance target manhole cover;

After the noise and scattering dust blocking device is installed on the upper part of the manhole to be repaired, the road surface cutting step is performed around the manhole in the noise and scattering dust blocking device by using the road surface cutter;

After the cutting of the road surface around the manhole, the manhole frame raising step is carried out using a manual manhole frame raising device, while the noise and shattering dust blocking device is removed from the upper part of the manhole to be repaired or in the noise and shattering dust blocking device. ;

After the manhole frame raising step, the asphalt or cement residue attached to the manhole frame is crushed and dropped, and the manhole frame repositioning height adjusting device is used to resecure the manhole frame on the manhole culvert, and then between the manhole frame and the manhole culvert Repositioning of the manhole frame, in which the mortar is poured and hardened;

After the manhole frame reseating step, the periphery of the manhole, using the ascon transported by the insulated and regenerated vehicles for ascon, with the noise and scattering blocker removed from the top of the manhole to be repaired or in the noise and scattering blocker The finishing step is characterized in that the progress.

Low noise and non-excavated manhole repair method using the noise and scattering dust blocking device and the manual manhole frame lifting device according to the present invention, the road surface cutting step around the manhole is carried out using the road surface cutting machine in the noise and scattering dust blocking device In addition, since the manhole frame raising step is carried out using a manual manhole frame raising device without going through an excavation step, the amount of noise and scattering dust generated during the manhole repair work is significantly reduced, and noise and scattering dust are stored in the workplace. It can block out propagating away.

In addition, the low noise and non-excavated manhole repair method using the noise and scattering dust blocking device and the manual manhole frame lifting device according to the present invention, using ascon transported by the insulating and reclaimed vehicle for ascon, the finishing step around the manhole As it progresses, the finishing work can be performed immediately after transportation without reheating the asphalt concrete, thereby reducing the time required for the finishing work and reducing the cost of reheating the asphalt concrete.

1 is a process flowchart of a low noise and non-excavated manhole repair method using a noise and scattering dust blocking device and a manual manhole frame lifting device according to the present invention.
Figure 2 is an exploded perspective view for explaining the structure of the noise and scattering dust blocker used in the low noise and non-excavated manhole repair method using a noise and scattering dust blocker and a manual manhole frame lifting apparatus according to the present invention.
Figure 3 is a perspective view showing the appearance of the noise and scattering dust blocker used in the low noise and non-excavated manhole repair method using a noise and scattering dust blocker and a manual manhole frame lifting apparatus according to the present invention.
Figure 4 is a cross-sectional view showing the noise and scattering dust blocker used in the low noise and non-excavated manhole repair method using the noise and scattering dust blocker and the manual manhole frame lifting apparatus according to the present invention installed on top of the manhole to be repaired.
Figure 5 is a perspective view for explaining the structure of the road surface circular cutter used in the low noise and non-excavated manhole repair method using a noise and scattering dust blocking device and a manual manhole frame lifting apparatus according to the present invention.
Figure 6 is a cross-sectional view for explaining the structure of the road surface circular cutter used in the low noise and non-excavated manhole repair method using the noise and scattering dust blocking device and the manual manhole frame lifting apparatus according to the present invention.
Figure 7 is an operational state diagram for explaining the adjustment of the cutter curvature of the road surface circular cutter used in the low noise and non-excavated manhole repair method using the noise and scattering dust blocking device and the manual manhole frame lifting apparatus according to the present invention.
Figure 8 is a cross-sectional view for explaining the manhole peripheral road surface cutting step in the low noise and non-excavated manhole repair method using the noise and scattering dust blocking device and the manual manhole frame lifting apparatus according to the present invention.
Figure 9 is a perspective view for explaining the structure of the manual manhole frame lifting device used in the low noise and non-excavated manhole repair method using the noise and scattering dust blocking device and the manual manhole frame lifting device according to the present invention.
10 is a cross-sectional view for explaining the structure of the manual manhole frame lifting device used in the low noise and non-excavated manhole repair method using the noise and scattering dust blocking device and the manual manhole frame lifting device according to the present invention.
11 is a cross-sectional view illustrating a manhole frame lifting step in a low noise and non-excavated manhole repair method using a noise and scattering dust blocking device and a manual manhole frame lifting device according to the present invention.
12 is a view illustrating a manhole frame repositioning step performed by a manhole frame repositioning height adjusting device in a low noise and non-excavated manhole repair method using a noise and scattering dust blocking device and a manual manhole frame raising device according to the present invention. Partial section.
Figure 13 is a cross-sectional view for explaining the closing step of the manhole periphery in the low noise and non-excavated manhole repair method using the noise and scattering dust blocking device and the manual manhole frame lifting apparatus according to the present invention.

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

As shown in Figure 1, the low noise and non-excavation manhole repair method using the noise and scattering dust blocking device and the manual manhole frame lifting apparatus according to the present invention, manhole periphery road surface cutting step (S1), and manhole frame lifting It consists of a step (S2), a manhole frame remounting step (S3), and a manhole peripheral finishing step (S4).

Among them, the manhole periphery road surface cutting step (S1) cuts the road surface 200 around the manhole in a straight line or cuts it in a circular shape using a road surface cutter centering on the manhole to be repaired.

In this embodiment, this manhole peripheral road surface cutting step (S1) is carried out in the noise and scattering dust blocking device 400.

That is, before cutting the manhole periphery road surface 200, for example, a rim 410 provided with a pair of hinge coupling pieces 420, the hinge through-hole 421 is formed radially at regular intervals on the top and bottom surfaces. And, the strut 440 is coupled between the hinge 430 between the hinge coupling pieces 420 of each of the rims 410 arranged at a vertical interval, and is attached to the outer surface of the rim 410 by the magnetic force of the magnetic body 451 By installing the noise and scattering dust blocking device 400 made of the blocking plate 450 in the upper part of the manhole 100 to be repaired, the road surface cutting step S1 of the periphery of the manhole proceeds in the noise and scattering dust blocking device 400. It is to be possible. The maintenance work in this environment reduces the noise by about 30 dB.

In addition, it is preferable that the warning phrase 452 is described on the outer surface of the blocking plate 450 of the noise and scattering dust blocking device 400, or a warning light and a direction indicator 453 are provided. As such, the warning phrase 452 is written on the outer surface of the blocking plate 450 of the noise and scattering dust blocking device 400, or the warning light and the direction indicator 453 are provided, so that the neighbors can be notified that they are under construction. Warning indications may be made.

In this embodiment, the road surface circular cutter 300 is used to cut the road surface around the manhole. The road surface circular cutter 300 is installed on the upper part of the manhole cover 110 and has a guide bush 311 at the center of the top surface. Is coupled to the frame 310 is installed, the rotating shaft 320 is inserted into the guide bush 311 to be lifted, the upper end of the rotating shaft 320 protruding upward of the frame 310 to rotate the rotating shaft 320 The driving unit assembly 330, the fixed body 340 for guiding the vertical movement of the rotating shaft 320 by using a guide pin 341 inserted in the lower portion of the rotating shaft 320, and the drive unit is installed on the frame 310 Drive unit lifting device 350 for elevating the assembly 330, the sliding bed 360 is slidably coupled to the lower end of the rotary shaft 320, three guide grooves 361 formed at 120 ° intervals, and a sliding bed ( A projection in the center direction inserted into the guide groove 361 of 360 ( Three cutter support members 370 having 371 and a cutter 372 having a core bit 373 formed at a lower end thereof are attached to an outer circumferential surface thereof, and the cutter support member 370 so that the inner diameter of the cutter 372 is enlarged or reduced. It includes a cutting diameter adjusting device 380 for moving in a radial or central direction, when the cutter support member 370 is moved by the cutting diameter adjusting device 380, so that the cutters 372 can be connected in a circular shape, Replace the cutters 372 with different curvatures, or adjust the curvature adjusting means 390 consisting of bolts 391-nuts 392 and washers 393 that couple the cutter support member 370 and the cutter 372. By changing the curvature of the cutter 372 attached to the cutter support member 370 by using the cutter 372 is configured to form a circular shape as a whole.

In the manhole peripheral road surface cutting step (S1), since the curvature of the cutter 372 may be changed according to the size of the manhole 100 by using the road surface circular cutter 300, the manhole peripheral road surface regardless of the manhole size ( 200) can be cut in a circle. However, in another manner, for example, a road surface cutter having a conventional structure may be used to cut the periphery of the manhole in a straight line.

Next, in the manhole frame raising step S2, the manhole frame 120 is raised by using the manual manhole frame lifting device 500.

This manhole frame lifting step (S2) is carried out in the noise and scattering dust blocking device 400 or in a state in which the noise and scattering dust blocking device 400 is removed from the upper part of the manhole to be repaired.

Manual manhole frame lifting device 500 is the support structure 510 is supported on the road surface 200 around the manhole frame 120, and the center of the support structure 510 to be elevated in the height direction of the support structure 510 Holding rod 520 disposed on the holding rod, and holding the manhole frame 120 when the operating rod 520 is raised and holding unit 530 mounted to the lower portion of the operating rod 520 to rise with the operating rod 520 and , The power transmission unit 540 coupled to the upper part of the operating rod 520 while being supported by the supporting structure 510 to elevate the operating rod 520, and the manhole frame 120 is pulled up. It is coupled to the power transmission unit 540 so as to be made by the force includes an operation unit 550 which is driven only by the human force, wherein the holding unit 530, the operating rod 520 is coupled to the outer peripheral surface The socket 532 is provided with a plurality of brackets (531) in each of the brackets, and the respective bar so that it can be folded or unfolded in the radial direction of the operating rod 520 Arm 534 having one end hinge 533 coupled to the kit 531 and the other end of the arm 534 so as to be in close contact with the inner bottom of the manhole frame 120 when the operating rod 520 is raised ( 535) It is preferably composed of a contact member 536 coupled.

In the manhole frame lifting step (S2), by using the manual manhole frame lifting device 500, it is possible to drive the power transmission unit 540 with pure human force to lift the manhole frame 120, as well as the holding unit 530 Since the contact member 536 coupled to the end of the arm 534 of the arm 534 firmly supports the manhole frame 120, work may be performed even in a place where power supply is not possible, and a conventional electric pulling apparatus may be used. Compared with the case, there is no sudden operation, and the worker can work safely.

Next, in the manhole frame remounting step (S3), after the manhole frame 120 is remounted on the manhole culvert using the manhole frame remounting height adjusting device 700 shown in FIG. 12, the manhole frame 120 ) And the mortar is hardened by placing mortar between the manhole culvert 130 and the sinking manhole 100 may be restored to the same height as the road surface, but in a different manner, for example, by pouring mortar on the manhole culvert 130. After installing the height adjusting material 140 thereon, by lowering the manhole frame 120 on the height adjusting material 140 may restore the manhole to the same height as the road surface. If the depth of settlement of the manhole is 5 cm or more, a wire mesh may be provided around the manhole in order to increase the tensile force of concrete or mortar.

Next, in the manhole peripheral finishing step (S4), using the ascon 600 carried by the insulating and recycling vehicle (not shown) for the ascon, so that the upper surface and the road surface 200 of the manhole frame is the same height. To close the gap between the manhole frame and the surrounding road surface 200.

The manhole peripheral finishing step (S4) may be performed in the noise and scattering dust blocking device 400, but may be performed in a state in which the noise and scattering dust blocking device 400 is not installed.

Ascon thermal insulation and regeneration vehicle has been previously proposed through "Ascon thermal insulation and regeneration vehicle using indirect heat of thermal medium oil" (Patent Registration No. 766906), the detailed description of the structure and operation principle will be omitted. .

Referring to the manhole repair work made through a low noise and non-excavated manhole repair method using the noise and scattering dust blocking device according to the present invention and a manual manhole frame lifting device as follows.

First, as shown in FIG. 4, the noise and scattering dust blocking device 400 is installed on the manhole 100 to be repaired.

Noise and scattering dust blocking device 400 in the present invention, as shown in Figures 2 and 3, consisting of a rim 410 and the support 440 and the blocking plate 450, arranged at intervals up and down After connecting the support 440 to the hinge 430 between the hinge coupling pieces 420 of each of the rims 410 to connect the rims 410 in a multi-layer, the outer surface of the rim 410 by the magnetic force of the magnetic body 451 By attaching the blocking plate 450 to, the manhole 100 to be repaired can be installed above.

When the warning phrase 452 is written on the outer surface of the blocking plate 450 of the noise and scattering dust blocking device 400 or when a warning light and a direction indicator 453 are provided, the neighboring people can recognize that the building is under construction. Can be prevented and a warning can be made.

Next, as shown in FIG. 8, inside the noise and scattering dust blocking device 400, cutting of the road surface 200 around the manhole is performed.

As shown in FIGS. 5 and 6, the road surface circular cutter 300 used in the present embodiment includes a frame 310 installed at an upper portion of the manhole cover 110 and a guide bush 311 installed at the center of the upper surface thereof. , A driving shaft assembly 330 coupled to the upper end of the rotating shaft 320 protruding upward and downward with respect to the guide bush 311, the rotating shaft 320 protruding upward of the frame 310, and the rotating shaft 320, and a rotating shaft. A fixed body 340 for guiding the vertical movement of the rotary shaft 320 by using a guide pin 341 inserted into the lower part of the 320 and a driving unit provided on the frame 310 to elevate the driving unit assembly 330. To the device 350, the sliding bed 360 is slidably coupled to the lower end of the rotary shaft 320 and formed with three guide grooves 361 at 120 ° intervals, and the guide grooves 361 of the sliding bed 360. A central protrusion 371 to be inserted is provided and a core bit 373 is provided at the lower end. Three cutter support members 370 having the formed cutter 372 attached to the outer circumferential surface, and a cutting diameter adjusting device for moving the cutter support member 370 in the radial direction or the center direction so that the inner diameter of the cutter 372 is enlarged or reduced. 380, but the cutter support member 370 is moved by the cutting diameter adjusting device 380, so that the cutters 372 can be connected in a circular manner, or replaced with cutters 372 of different curvatures, or cutters Cutter 372 attached to cutter support member 370 using curvature adjusting means 390 consisting of bolts 391-nuts 392 and washers 393 that couple support member 370 and cutter 372. Since the cutters 372 are configured to form a circular shape as a whole, the curvature of the cutter 372 can be adjusted as shown in FIG. 7, so that the curvature of the cutter 372 according to the manhole 100 standard can be adjusted. Through the road surface 200 around the manhole simply and quickly Can be cut into molds.

While the road surface 200 is cut through the road surface circular cutter 300, considerable noise and scattering dust are generated. However, the noise and scattering dust generated during the road surface 200 cutting process are noise and scattering dust blocking device 400. It prevents the radio wave propagating far out of the workplace, thereby minimizing the damage caused by noise and scattering dust.

After the manhole periphery road surface cutting step (S1), as shown in FIG. 11, in the noise and scattering dust blocking device 400 or in the absence of the noise and scattering dust blocking device 400, the manhole frame 120 Impression is carried out.

In this embodiment, the manual manhole frame lifting device 500, as shown in Figures 9 and 10, the support structure 510 is supported on the road surface 200 around the manhole frame 120, and the support structure ( The operating rod 520 disposed at the center of the supporting structure 510 to be elevated in the height direction of the 510 and the manhole frame 120 when the operating rod 520 is lifted up together with the operating rod 520. The power transmission unit 540 coupled to the holding rod 520 and the holding unit 530 mounted to the lower portion of the operating rod 520 and the operating rod 520 while being supported by the supporting structure 510 to lift and lower the operating rod 520. ), And an operation unit 550 coupled to the power transmission unit 540 so as to be made by a human force, the manhole frame 120 is driven by a human force, among which a holding unit 530 is a socket 532 and a plurality of brackets 531 on the outer circumferential surface of the operating rod 520 and the operating rod 520. Arm 534 having one end hinge 533 coupled to each bracket 531 so that it can be retracted or unfolded, and the arm can be in close contact with the inner bottom of the manhole frame 120 when the operating rod 520 is raised. Consists of a contact member 536 coupled to the other end of the hinge (535) at the other end of the (534), by moving the manual manhole frame lifting device 500 into the noise and scattering dust blocking device 400, manual manhole frame lifting device It is possible to raise the sinking manhole frame 120 through 500.

The manual manhole frame lifting device 500 not only drives the power transmission unit 540 with purely human force, but also has a contact member 536 coupled to a hinge 535 at the end of the arm 534 of the gripping unit 530. Since the manhole frame 120 is firmly supported, the manhole frame 120 can be pulled up even in a place where power supply is not possible, and there is no drastic movement as compared to the use of a conventional electric pulling device. I can do it.

In the manhole frame remounting step (S3), in the state in which the manhole frame 120 is completely lifted from the manhole culvert 130, after pouring mortar on the top of the manhole culvert 130, the height adjusting material 140 thereon. By adjusting the height of the installation of the manhole frame 120, by lowering the manhole frame 120 again on the manhole culvert 130, to restore the sinking manhole 100 to the same height as the road surface 200 Can be. However, in a different manner, for example, without using a separate height adjustment material, the manhole frame repositioning height adjustment device 700 shown in Figure 12 along the top circumference of the manhole frame 120 120 or 90 ° In the state of installation at intervals, the manhole frame 120 on the manhole culvert 130 so that the horizontal bar 730 of the manhole frame remounting height adjusting device 700 is in a state spanning the road surface 200 around the manhole After reseating the mold, the mortar is hardened by casting the surroundings, thereby restoring the settled manhole 100 to the same height as the road surface 200. Here, reference numeral 710 is a handle used when the worker lifts the manhole frame 120, 720 is a clamp portion to which the upper circumference of the manhole frame 120 is fitted, 740 is a top circumference of the manhole frame 120 Fixing bolt for fixing

Next, as shown in FIG. 13, the finish of the manhole periphery is performed inside the noise and scattering dust blocking device 400.

Ascon 600 used in the manhole periphery finishing step (S4) is transported through the insulated and regenerated vehicles for ascon, so as soon as the transport can be done immediately, without reheating the ascon 600, it is necessary to finish It is possible to reduce the time to be, and to reduce the cost of reheating the ascon 600.

On the other hand, in the finishing stage around the manhole considerable noise and scattering dust is generated when the ascon 600 is flattened, but the noise and scattering dust blocking device 400 is prevented from propagating far outside the workplace, damage caused by noise and scattering dust Can be minimized.

Low noise and non-excavated manhole repair method using the noise and scattering dust blocking device according to the present invention and the manual manhole frame lifting device, the road surface cutting step (S1) around the manhole is a road in the noise and scattering dust blocking device 400 Proceed by using a surface cutter, the manhole frame lifting step (S2) and the manhole frame remounting step (S3) and the manhole periphery finishing step (S4) is carried out in the noise and scattering dust blocking device 400 as necessary, Alternatively, since noise and scattering dust blocking devices are respectively removed from the manhole to be repaired, damage and complaints caused by noise and scattering dust can be minimized.

The present invention described above is not limited to the above-described embodiments, and can be changed within the scope not departing from the gist of the present invention claimed in the claims, and such changes are within the claims.

100 manhole 110 manhole cover
120: manhole frame 130: manhole culvert
140: height adjustment material 200: road surface
300: road surface cutter 310: frame
311: guide bush 320: rotating shaft
330: drive unit assembly 340: fixed body
341: guide pin 350: driving unit lifting device
360: sliding bed 361: guide groove
370: support member 371: protrusion
372: cutter 373: core bit
380: cutting diameter adjusting device 390: curvature adjusting means
391: Bolt 392: Nut
393 washer 400: disconnect device
410: rim 420: hinge coupling pieces
421: through the hinge 430: hinge
440: Shore 450: Block
451: Fertility 452: Warning Statement
453: warning lights and direction indicators 500: manual manhole frame lifting device
510: support structure 520: working rod
530: holding unit 531: bracket
532: socket 533: hinge
534: Arm 535: Hinge
536 Contact member 600 Ascon
700: manhole frame remounting height adjustment device 710: handle
720: clamp portion 730: horizontal band
740: fixing bolt

Claims (4)

A pair of hinge coupling pieces 420 having a hinge through hole 421 are provided with a plurality of rims 410 provided with a plurality of spaced intervals on the upper and lower surfaces along the circumferential direction, and rims 410 disposed at an upper and lower intervals. ) And a plurality of posts 440 coupled to each other by the hinge 430 by inserting one end portion into a hinge coupling piece 420 of each of the rims 410 disposed on the upper and lower portions so that the rim 410 is fixed to each other. ) And a noise and scattering dust blocking device 400 composed of a plurality of blocking plates 450 attached to the outer surface of the rim 410 by the magnetic force of the magnetic body 451 is installed on the upper part of the manhole 100 to be repaired. The upper surface of the manhole 100 to be repaired in a form in which the noise and scattering dust blocking device 400 faces the manhole 100 to be repaired is opened and the remaining surface is covered by the blocking plate 450. Installed in;
After the noise and scattering dust blocking device 400 is installed on the upper part of the manhole 100 to be repaired, a road surface cutting step S1 is performed in the noise and scattering dust blocking device 400 in the noise and scattering dust blocking device 400. Become;
After the manhole peripheral road surface cutting step, the noise and scattering dust blocking device 400 is removed from the upper part of the manhole 100 to be repaired or in the noise and scattering dust blocking device 400, the manual manhole frame lifting device 500 ), The manhole frame raising step S2 is performed;
After the manhole frame raising step (S2), the asphalt or cement residues attached to the manhole frame 120 is crushed and dropped, and the manhole frame repositioning height at 120 ° or 90 ° intervals along the upper circumference of the manhole frame 120 Adjusting device 700 is installed, so that the horizontal bar 730 of the manhole frame remounting height adjusting device 700 is in a state spanning the road surface 200 around the manhole so that the manhole frame 120 on the manhole culvert 130 ) After reseating, the manhole frame repositioning step (S3) of placing mortar between the manhole frame 120 and the manhole culvert 130 and hardening is performed;
After the manhole frame remounting step (S3), in the state that the noise and scattering dust blocking device 400 is removed from the upper part of the manhole 100 to be repaired or in the noise and scattering dust blocking device 400, thermal insulation and regeneration for ascon Using the Ascon 600 transported by the vehicle, a low noise and non-excavated manhole repair method using a noise and scattering dust blocking device and a manual manhole frame lifting device, characterized in that the finishing step (S4) around the manhole. The method of claim 1,
Warning phrase 452 is described on the outer surface of the blocking plate 450 of the noise and scattering dust blocking device 400, a warning light and a direction indicator 453 is provided, noise and scattering dust blocking device and manual manhole Low noise and non excavation manhole repair method using frame lifting device. The method of claim 1,
The road surface cutter used in the manhole peripheral road surface cutting step (S1) is a road surface circular cutter 300,
The road surface circular cutter 300,
A frame 310 installed at an upper portion of the manhole cover 110 and provided with a guide bush 311 at a center of an upper surface thereof; A rotating shaft 320 inserted into the guide bush 311 so as to be lifted and lowered; A drive assembly 330 coupled to an upper end of the rotation shaft 320 protruding upward from the frame 310 to rotate the rotation shaft 320; A fixture 340 for guiding vertical movement of the rotation shaft 320 by using a guide pin 341 inserted below the rotation shaft 320; A driving unit elevating device 350 installed above the frame 310 and elevating the driving unit assembly 330; A sliding bed 360 slidably coupled to the lower end of the rotating shaft 320 and having three guide grooves 361 formed at intervals of 120 °; Three cutter supporting members 370 having a central protrusion 371 inserted into the guide groove 361 of the sliding bed 360, and a cutter 372 having a core bit 373 formed at its lower end attached to an outer circumferential surface thereof. )Wow; It includes; cutting diameter adjusting device 380 for moving the cutter support member 370 in the radial or central direction so that the inner diameter of the cutter 372 is enlarged or reduced;
When the cutter support member 370 is moved by the cutting diameter adjusting device 380, the cutters 372 may be replaced with cutters 372 having different curvatures or the cutter support members 370 and the cutter so that the cutters 372 may be connected in a circle. Cutter by varying the curvature of the cutter 372 attached to the cutter support member 370 by using the curvature adjusting means 390 consisting of bolts 391-nuts 392 and washers 393 that couple 372. Low noise and non-excavated manhole repair method using the noise and scattering dust blocker and the manual manhole frame lifting device characterized in that the (372) is configured to form a circle. The method of claim 1,
Manual manhole frame lifting device 500 used in the manhole frame lifting step (S2),
A support structure 510 supported on the road surface 200 around the manhole frame 120; An operating rod 520 disposed at the center of the support structure 510 to be elevated in a height direction of the support structure 510; A holding unit 530 mounted to a lower portion of the operating rod 520 to grip the manhole frame 120 to ascend together with the operating rod 520 when the operating rod 520 is raised; A power transmission unit 540 coupled to the upper part of the operating rod 520 while being supported by the support structure 510 to elevate the operating rod 520; And a manipulating unit 550 coupled to the power transmission unit 540 so as to be made by a human force, the manhole frame 120 being driven by a human force.
The holding unit 530, the operating rod 520 is coupled to each other and the socket 532 is installed on the outer circumferential surface and the plurality of brackets 531, the radially of the operating rod 520, so that each can be folded or unfolded An arm 534 having one end hinge 533 coupled to the bracket 531 and a hinge at the other end of the arm 534 to be in close contact with the bottom inner side of the manhole frame 120 when the operating rod 520 is raised. (535) Low noise, non-excavated manhole repair method using a noise and scattering dust blocking device and a manual manhole frame lifting device, characterized in that consisting of a contact member (536) coupled.

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