KR101630346B1 - Manhole repairing method - Google Patents

Manhole repairing method Download PDF

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Publication number
KR101630346B1
KR101630346B1 KR1020150181068A KR20150181068A KR101630346B1 KR 101630346 B1 KR101630346 B1 KR 101630346B1 KR 1020150181068 A KR1020150181068 A KR 1020150181068A KR 20150181068 A KR20150181068 A KR 20150181068A KR 101630346 B1 KR101630346 B1 KR 101630346B1
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South Korea
Prior art keywords
manhole
unit
cutting
road
coupled
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KR1020150181068A
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Korean (ko)
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신혁균
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신혁균
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/128—Repairs of manhole shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • B28D1/225—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising for scoring or breaking, e.g. tiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • B28D1/24—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising with cutting discs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0007—Production methods using a mold
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)

Abstract

A manhole repair method according to the present invention includes a first step of forming two concentric cutting lines around a manhole cover; A second step of crushing the roadway wrapping material between the two cutting lines; A third step of cleaning between the two cutting lines; A fourth step of crushing the road wrapping material in the inside of the cutting line; A fifth step of aligning the top height of the manhole iron with the road surface using the iron lifting unit; A sixth step of inserting a form between the manhole and the manhole; Placing a quick-setting mortar in an outer space of the mold; An eighth step of pouring the ascon in the upper side of the quick-setting mortar after removing the steel lifting unit when the rapid curing mortar curing is completed; And finishing and finishing the upper part of the asconcave area.

Description

Manhole repairing method

The present invention relates to a manhole repair method for cutting a road pavement around a manhole cover and then pouring a road pavement material around a manhole, more specifically, to prevent excessive damage to the road pavement and to reduce dust generation It is about the manhole maintenance method that can solve the civil complaint problem.

Generally, various facilities such as a water pipe, a sewer pipe, a wire, a communication cable and the like are embedded in the underground of a road, and a manhole is installed at a predetermined distance on the road for installation and maintenance of these facilities.

On the other hand, the roads must be repaired after a certain period of time because the surfaces are aged and uneven due to frequent passages of automobiles and various reasons. This repair work mainly involves overlaying the surface of the road. Since the manhole is also lowered than the road surface due to the overlaying work, or cracks are generated due to the fine settlement of the ground, it is aged due to various reasons. Manhole repair work should be carried out at a period of 5 years.

In the repair work of the above-mentioned manhole, the peripheral road pavement surface of the manhole cover is vertically cut using a cutting machine, and then the vertically cut road pavement surface is excavated and removed. When the manhole cover is lifted, A member is installed, and then a manhole is placed on the road, and a road packaging material such as asphalt is filled and cured in a space portion of the excavated road pavement layer.

At this time, in the related art, a drilling tool end such as a hammer drill is inserted into a circular cutting line formed around the manhole cover to crush the road pavement inside the cutting line, and the cutting line is generally formed by a thin cutting blade There is a problem that the packaging material is damaged at the outer side of the cutting line in the process of crushing road pavement.

In addition, during the crushing of road pavement material, various kinds of dust and dust are generated in a large amount. In the past, there is no separate process for removing such dust and dust, and the working environment is very poor. .

Of course, it is possible to increase the width of the cutting line by cutting the road pavement surface a plurality of times while slightly changing the diameter of the road surface cutting device, but in such a case, it takes a lot of time and cost to cut the road pavement surface .

In addition, when the conventional road pavement cutting method is used, there is a disadvantage in that it is impossible to control the cutting depth and it is difficult to repair and use.

KR 10-0965935 B1

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a method and apparatus for cutting a road surface, So that it is easy to repair and use.

In order to accomplish the above object, the present invention provides a manhole repair method comprising: a magnet unit attached to an upper surface of a manhole cover; a drive shaft rotated by the power generation unit; A road surface cutting device for removing road pavement material and a connecting means for connecting the magnet unit to the machining unit so that the machining unit can remove the road pavement while revolving around the magnet unit, 1. A repair method for repairing a periphery, comprising: a first step of crushing a road pavement around a manhole cover into a circular shape; A second step of cleaning the crushing line; A third step of crushing the road pavement material in the inside of the crushing line; A fourth step of aligning the top height of the manhole iron with the road surface using the iron lifting unit; A fifth step of inserting a form between the manhole and the manhole; Placing a quick-setting mortar in an outer space of the mold; A seventh step of pouring the ascon in the upper side of the quick-setting mortar after removing the steel lifting unit when the rapid curing mortar curing is completed; And finishing and finishing the upper part of the asconcave area.

The manhole repair method according to the present invention comprises a magnet unit attached to an upper surface of a manhole cover, a drive shaft rotated by the power generator, and a machining unit configured to remove the road wrapper, , And a repairing method for repairing the perimeter of a manhole by using a road surface cutting apparatus having a connection unit for connecting the magnet unit and the processing unit so that the processing unit can revolve around the magnet unit and remove the road wrapping material A first step of forming two concentric cutting lines around the manhole cover; A second step of crushing the roadway wrapping material between the two cutting lines; A third step of cleaning between the two cutting lines; A fourth step of crushing the road wrapping material in the inside of the cutting line; A fifth step of aligning the top height of the manhole iron with the road surface using the iron lifting unit; A sixth step of inserting a form between the manhole and the manhole; Placing a quick-setting mortar in an outer space of the mold; An eighth step of pouring the ascon in the upper side of the quick-setting mortar after removing the steel lifting unit when the rapid curing mortar curing is completed; And finishing and finishing the upper part of the asconcave area.

The road surface cutting apparatus includes an inner case fixedly coupled to cover an upper portion of the processing unit, an outer case coupled to the inner case with a structure slidable in a vertical direction, Wherein the connecting means is coupled to the magnet unit in a structure in which one side is rotatable and the other side is fixedly coupled to the outer case, So as to adjust the depth of the road surface pavement.

The connecting means includes a turning bar vertically erected and coupled to the magnet unit so as to be rotatable, a turning bar coupled to the insertion rod by a hinge shaft whose lower side has a length in the horizontal direction and having a bolt on the upper side, A rotating bar coupled to the outer case and having a slot through which an end of the bolt part can pass, and a nut part screwed to the bolt part passing through the slot to fix the insertion rod to the rotating bar, Wherein the first step is configured to adjust the diameter of the cutting line by transporting the rotating bar in the longitudinal direction of the slot and fastening the nut part.

The inner case includes an inner frame that covers an upper surface, a front surface, right and left side surfaces of the processing unit, at least one slide bar provided to protrude outward of the inner frame, and an inner upper frame fixed to the upper side of the inner frame The outer case includes an outer frame that covers the upper surface, the front surface, the left and right side surfaces of the inner case, the slide rail that is arranged to extend in the vertical direction and inserted into the structure in which the slide bar is slidable in the vertical direction, And a plurality of wheels provided at a lower end of the outer frame. The elevating unit includes a rotation handle coupled to the outer upper frame in a structure rotatable about a vertical rotation axis, An upper end fixedly coupled to the rotary knob, and a lower end fixedly coupled to the inner upper frame Is composed of a lifting screw is threaded into the second stage to the first stage 31 is configured to the user and the inner case raised or lowered depending on the rotational direction of the rotary knob when rotated to the rotation knob.

Wherein the machining tool includes a rotation shaft which is detachably coupled to the drive shaft, a ring-shaped flange which surrounds one longitudinal outer circumferential surface of the rotation shaft, and a ring- A cutting tool having a pair of cutting blades spaced apart in parallel with each other with the flange interposed therebetween, a rotating shaft detachably coupled to the driving shaft, and a ring- A crushing tool having a flange of the flange, a plurality of holders arranged at equal intervals on an outer end of the flange, and a crushing bit detachably coupled to the holder; A ring-shaped flange surrounding the shaft, a circumferential surface on one side in the longitudinal direction of the rotating shaft, And a cleaning tool having a brush provided at an outer end of the base flange, wherein the cutting tool is mounted on the drive shaft in the first step, and the shredding tool is mounted on the drive shaft in the second step, In the third step, the cleaning tool is mounted on the drive shaft.

Wherein the road surface cutting device is mounted on the rear side of the processing unit so as to traverse the movement path of the processing unit, the side of the both sides of the width direction opposite to the magnet unit is coupled to the processing unit, And a shrunk film arranged obliquely so as to be spaced rearward from the processing unit so that the shred pieces generated in the first to third steps are guided to the inside of the cutting line.

The road surface cutting apparatus further includes a dust collector provided with a suction port at a position where the processing tool is located, so that the dust and dust generated in the first to third steps are sucked into the dust collector.

The road surface cutting apparatus further includes a storage tank that is seated on the upper surface of the outer case to store the cooling fluid and a spray nozzle mounted on the lower end of the outer case and spraying the cooling fluid transferred from the storage tank onto the road surface Wherein the first step is configured to form a cutting line at a point where the cooling fluid is injected.

By using the manhole repair method according to the present invention, it is possible to make the cutting width of the cutting surface of the pavement surface wider than the reference value, thereby facilitating the excavation of the coating material, and the dust and dust And it is easy to adjust the depth of cutting and crushing, thereby facilitating maintenance.

1 is a flowchart of a manhole repair method according to the present invention.
2 is a perspective view of a road surface cutting apparatus used in a manhole repair method according to the present invention.
3 is an exploded perspective view of the processing unit included in the road surface cutting apparatus.
4 is an exploded perspective view of the connecting means included in the road surface cutting device.
5 is a perspective view showing a mounting structure of a curtain film and a dust collector included in the road surface cutting device.
6 and 7 are exploded perspective views showing a structure in which an inner case and an outer case are coupled.
8 is a plan view sequentially showing a process of shredding a road surface by a manhole repair method according to the present invention.
9 to 11 are vertical cross-sectional views illustrating a process of installing a road pavement material around a manhole of a manhole by a manhole repair method according to the present invention.
12 is a flowchart of another embodiment of the manhole repair method according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a manhole repair method according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view of a road surface cutting apparatus used in a manhole repair method according to the present invention, and FIG. 3 is an exploded perspective view of a processing unit included in a road surface cutting apparatus.

When the height of the manhole cover 10 is different from the height of the road pavement surface due to the road surface around the manhole cover 10 or due to repetitive road pavement, It is necessary to repair the vicinity of the manhole 10 so that the top surface of the manhole cover 10 has the same height as the road surface. In order to perform such manhole repair work, it is necessary to vertically cut the road surface around the manhole cover 10. Conventionally, the cutting surface is vertically cut with one cutting wheel. The cutting line 20 Is formed to be very thin. When the width of the cutting line 20 is very thin, the outer side of the cutting line 20 is partially shattered in the process of removing the roadside wrapping material inside the cutting line 20.

The manhole repair method according to the present invention is constructed so that the width W of the cutting line 20 is very wide in order to solve such a problem so that removal of road pavement using an excavation tool can be implemented very smoothly and easily There is a first feature in.

That is, the manhole repair method according to the present invention includes a first step (S10) of forming two concentric cutting lines (20) around a manhole cover, and a first step A third step S30 of cleaning between the two cutting lines 20 and a fourth step S40 of crushing the roadside wrapping material inside the cutting line 20, A fifth step (S50) of aligning the top height of the manhole iron with the road surface using the iron lifting unit, a sixth step (S60) of inserting the form between the manhole and the manhole, A seventh step (S70) of placing a quick-setting mortar in an outer space, an eighth step (S80) of removing the steel lifting unit after the rapid curing mortar curing is completed, and placing an ascon in the upper side of the quick setting mortar, The upper part of the ascon casting area is cut (Step S90).

The road surface cutting apparatus shown in FIG. 2 is indispensably required for cutting and crushing the roadway wrapping material by the manhole repair method according to the present invention. The road surface cutting apparatus includes a magnet unit attached to the upper surface of the manhole cover 10 A machining unit 500 having a drive shaft 530 rotated by the power generating unit 520 and a machining tool detachably coupled to the drive shaft 530; And a connection unit 200 connecting the magnet unit 100 and the machining unit 500 so as to cut the road surface while revolving around the center of the machining unit 100 as a basic component.

The machining unit 500 includes a power generating unit 520 for generating a rotational force to rotate the drive shaft 530 and a drive shaft 530 coupled to the drive shaft 530 in a detachable structure to cut, A cover 560 for supporting the outer end of the rotary shaft 540 so that the rotary shaft 540 can not be drawn out to the outside, and a moving handle 560 for holding and moving the user by hand, (510). The power generating unit 520 may be applied to any type of power unit as long as it can generate a rotational force such as an internal combustion engine or an electric motor. The power transmitting structure for rotating the rotating shaft 540 through the driving shaft 530 by the rotational force generated from the power generating unit 520 is substantially the same as that of the conventional planer. do.

On the other hand, the machining tool which is attached to and detached from the drive shaft 530 is divided into a cutting tool for cutting the road surface, a shredding tool for shredding the roadway wrapping material, and a cleaning tool for cleaning the road surface. The cutting tool includes a rotation shaft 540 detachably coupled to the drive shaft 530, a ring-shaped flange 542 surrounding an outer circumferential surface on one side in the longitudinal direction of the rotation shaft 540, And a pair of cutting blades 552 which are coupled such that one end in the longitudinal direction of the shaft 540 passes through the center of rotation and is spaced apart in parallel through the flange 542. The shredding tool further includes a rotation shaft 540 detachably coupled to the drive shaft 530, a ring-shaped flange 542 surrounding an outer circumferential surface on one side in the longitudinal direction of the rotation shaft 540, A plurality of holders 544 arranged at equal intervals on the outer end of the flange 542 and a shredding bit 554 detachably coupled to the holder 544. Finally, the cleaning tool includes a rotation shaft 540 that is detachably coupled to the drive shaft 530, a ring-shaped flange 542 surrounding an outer circumferential surface on one side in the longitudinal direction of the rotation shaft 540, And a brush 556 provided at an outer end of the flange 542.

Therefore, when the cutting tool is mounted on the driving shaft 530, it is possible to perform a first step (S10) of forming two cutting lines 20 in a concentric circle pattern on the road pavement, It is possible to carry out a second step S20 of crushing the road wrapping material located between the two cutting lines 20 when mounting the cleaning tool on the driving shaft 530. When the cleaning tool is mounted on the driving shaft 530, 20 in the second step S30.

When two circular cutting lines 20 having different diameters are formed in a concentric circular pattern and then the two cutting lines 20 are crushed, the end of the excavating tool such as a hammer drill is inserted inside the cutting line 20 The width W of the cutting line 20 can be widened so as to be able to be inserted into the cutting line 20, so that the road wrapping material can be more effectively broken and removed.

The width W of the cutting line 20 is determined according to the distance between the pair of cutting blades 542. The thickness of the flange 542 is determined by the cutting line 20 to be formed on the road surface, It is preferable to set it appropriately according to the width (W) At this time, as shown in the enlarged view of FIG. 3, the plurality of shredding bits 554 are formed so as to be able to shred the road wrapping material over a wider area during one rotation of the rotating shaft 540, They can be arranged alternately in an inclined manner. When the plurality of shredding bits 554 are arranged alternately to the left and right, the packaging surface is wider as the horizontal distance between the ends of the shredding bits 554 inclined to the left and the ends of the shredding bits 554 inclined to the right The effect of being crushed can be obtained.

At this time, as the angle of tilting of the shredding bits 554 to the left and right is increased, the width W of the cutting line 20 is increased, but the efficiency of cutting the road surface is lowered. It is preferable that the width W is appropriately selected.

The road surface cutting apparatus includes an inner case 400 fixedly coupled to cover an upper portion of the processing unit 500 so as to freely adjust a depth of cut, a depth of cut, and a cleaning depth, And an elevating unit 600 mounted on the outer case 300 to move the inner case 400 up and down. At this time, the connecting means 200 is coupled to the magnet unit 100 in a structure in which one side (left side in FIG. 2) is rotatable, and is fixedly coupled to the other side (right side in FIG.

Accordingly, when the manhole repair method according to the present invention is used, the depth of cut, depth of cut, and depth of cleaning of the road wrapping material can be freely raised and lowered by moving the inner case 400 and the processing unit 500 coupled thereto by operating the elevation unit 600 So that it can be adjusted. Hereinafter, the structure in which the inner case 400 and the processing unit 500 coupled thereto are raised and lowered by the operation of the elevating unit 600 will be described in detail with reference to FIG. 5 to FIG.

4 is an exploded perspective view of the connecting means included in the road surface cutting device.

The connecting means 200 included in the road surface cutting apparatus can change the diameter of the cutting line 20 by adjusting the distance between the magnet unit 100 and the machining unit 500, The connection between the magnet unit 100 and the machining unit 500 can be maintained.

That is, the connecting means 200 includes an insertion rod 210 vertically erected and coupled to the magnet unit 100 in a rotatable structure, and a hinge shaft 222 having a length in the horizontal direction below, And a bolt portion 224 formed on the upper end of the bolt portion 224 so as to be coupled to the rotation bar 220 and the outer case 300, And a nut portion 242 threadedly engaged with the bolt portion 224 passing through the slot 232. The insertion bar 210 is inserted into the slot 232, And a fixing unit 240 for fixing the rotation bar 230 to the rotation bar 230.

The user can adjust the distance between the magnet unit 100 and the machining unit 500 by unfastening the fixed unit 240 and changing the position of the bolt portion 224 along the slot 232 and then tightening the fixed unit 240. [ Can be changed. In order to allow the bolt 224 to stably move only in the longitudinal direction of the slot 232 without being swung in the width direction of the slot 232, And a guide plate 226 contacting the side surface.

When the height of the machining unit 500 is changed in order to adjust the depth of the cutting surface, the inclination of the turning bar 230 must be changed. However, both sides of the turning bar 230 in the longitudinal direction, The rotation bar 230 may be bent or broken.

4, the insertion rod 210 and the rotation bar 220 are connected to each other by a hinge (not shown) so that the inclination of the rotation bar 230 can be changed according to the height of the processing unit 500. Therefore, And is fastened by a shaft 222. The lengthwise direction of the hinge shaft 222 is perpendicular to the longitudinal direction of the rotary bar 230 and is parallel to the ground. When the height of the processing unit 500 is changed, Is turned about the hinge shaft 222, so that it is not bent or broken.

FIG. 5 is a perspective view showing a mounting structure of a screen and a dust collector included in the road surface cutting apparatus, and FIGS. 6 and 7 are exploded perspective views showing a structure in which an inner case and an outer case are coupled.

The road surface cutting apparatus is configured such that the various crushing pieces generated in the process of cutting, crushing, and cleaning the road pavement surface are gathered in one place without bouncing in all directions, And a side of the opposite side of the width direction of the magnet unit 100 is coupled to the processing unit 500 and a side of the both sides of the side in the width direction close to the magnet unit 100 is connected to the processing unit 500 And an obscuration film arranged obliquely so as to be spaced rearward.

When the curtain wall 800 is provided, the crushed pieces generated in the first to third steps slide on the sloping lower surface of the curtain wall 800, so that the inside of the cutting line 20, that is, ) Gather around. Therefore, the operator has the advantage that the crushed pieces generated in the process of cutting and crushing road paving materials can be processed very easily.

Meanwhile, the road surface cutting apparatus may further include a dust collector 900 provided with a suction port at a position where the processing tool is positioned, so that the dust and dust generated in the first to third steps are not diffused to the surroundings have. When the dust collector 900 is provided, dust and dust generated in the first to third steps are collected by the dust collector, so that pollution of the surrounding environment can be prevented, and dust and dust It is possible to prevent complaints caused by the occurrence in advance.

Meanwhile, in the first step S10, the road surface cutting device is mounted on the upper surface of the outer case 300 so as to reduce dust and frictional heat generated when the road surface is cut, (Not shown) of the outer case 300 and the cooling fluid transferred from the storage tank 700 to the road pavement surface cutting area (more specifically, the cutting blade 552 is in contact with the road pavement surface) (Not shown). At this time, the injection nozzle 710 may be configured to compress the cooling fluid received from the storage tank 700 to a certain level and then inject the cooling fluid, or the cooling fluid in the storage tank 700 may be configured to be sprayed by the self- have. 5, when the transfer tube 720 for transferring the cooling fluid in the storage tank 700 to the injection nozzle 710 is exposed to the outside, the appearance of the transfer tube 720 is not good, And is inserted into the outer frame.

When the connecting unit 200 connecting the fixed unit 240 and the machining unit 500 is directly coupled to the machining unit 500 and the height of the machining unit 500 is changed, The inclination is also changed, so that the diameter of the cutting line 20 is slightly changed. That is, if the height of the machining unit 500 is changed in the process of cutting the road pavement surface, the finally formed cutting line 20 does not form one circle.

The road surface cutting apparatus is configured such that the connecting means 200 is directly coupled to the machining unit 500 so that the diameter of the cutting line 20 is not changed even if the height of the machining unit 500 is changed in the course of cutting the road surface. But is indirectly connected to the outer case 300 through the inner case 400. [0064] As shown in FIG.

That is, the road surface cutting apparatus includes an inner case 400 fixedly coupled to cover an upper portion of the processing unit 500, and an outer case 400 coupled to the inner case 400 in a vertically slidable manner And an elevating unit 600 mounted on the outer case 300 to elevate the inner case 400. At this time, the connecting means 200 is coupled to the magnet unit 100 in a structure in which one side (left side in FIG. 2) is rotatable, and is fixedly coupled to the other side (right side in FIG.

The inner case 400 includes an inner frame 410 covering the upper surface and the front and left and right sides of the processing unit 500 and at least one slide bar 420 projected outward from the inner case 400 And an inner upper frame 430 fixed to the upper side of the inner frame 410. The outer case 300 includes an outer frame 310 covering the upper surface and the front and left and right side surfaces of the inner case 400 and an outer frame 310 extending in the vertical direction to allow the slide bar 420 to slide up and down A plurality of wheels 340 provided at a lower end of the outer frame 310, and a plurality of wheels 340 attached to the outer frame 310. The slide rail 320 is inserted into the outer frame 310, And an upper plate 350 covering the upper surface of the outer frame 310.

The inner case 400 integrally coupled to the processing unit 500 can be moved up and down with the slide rail 320 inside the outer case 300 to which the rotary bar 230 is coupled, The inclination of the rotation bar 230 is kept constant even if the height is changed. That is, even if the height of the machining unit 500 is changed to adjust the depth of the cutting line 20, the slope of the turning bar 230 is always kept constant, It is possible to obtain the effect of being kept constant at all times regardless of the height.

The lifting unit 600 for lifting and lowering the inner case 400 is rotatable about a vertical rotating shaft so as to be manually operated by an operator holding the moving handle 510 and moving the processing unit 500 A lifting screw 610 whose upper end is fixedly coupled to the rotary knob 620 and whose lower end is screwed to the inner upper frame 430, ≪ / RTI > When the operator moves the rotary handle 620 in the direction of rotating the inner case 400 and the processing unit fixedly coupled to the rotary case 620, 500 are changed, so that the cutting and breaking depths can be adjusted.

Of course, the elevating unit 600 may be configured to raise and lower the inner case 400 by a separate driving motor. However, in such a case, electric power for operating the driving motor is essentially required. Therefore, There is a disadvantage that it can not be used. Therefore, it is preferable that the elevating unit 600 is configured to elevate the inner case 400 manually by an operator.

The slide bar 420 and the slide rail 320 for guiding the lifting and lowering direction of the inner case 400 may be provided only in the inner case 400 and the outer case 300, When the case 400 is raised or lowered, a phenomenon of swaying sideways may occur. The slide bar 420 and the slide rail 320 may be mounted on at least three sides of the inner frame 410. That is, the slide bar 420 is provided on the front outer side surface and the left and right outer sides of the inner frame 410, The slide rails 320 are preferably provided on the front inner side surface and the left and right inner side surfaces of the outer frame 310, respectively.

FIG. 8 is a plan view sequentially showing the process of shredding the road surface by the manhole repair method according to the present invention, and FIGS. 9 to 11 illustrate a method of repairing the road surface by wrapping the road- And FIG.

Hereinafter, a process of repairing the periphery of a manhole cover according to a manhole repair method according to the present invention will be described in detail with reference to the accompanying drawings.

When a cutting tool having a pair of cutting blades 552 is mounted on the drive shaft 530 to cut the road pavement surface, as shown in Fig. 8 (a), two circular patterns having a concentric circular pattern A cutting line 20 is formed.

When the formation of the cutting line 20 is completed, a shredding tool equipped with a plurality of shredding bits 554 is mounted on the driving shaft 530 so as to move between the two cutting lines 20 as shown in FIG. 8 (b) Of road packaging material.

A large number of shred pieces 22 are produced between the two cutting lines 20 when the shredding process is completed so that a cleaning tool equipped with a brush 556 is removed from the drive shaft 530 to remove such shred pieces 22, Thereby securing an empty space between the two cutting lines 20 as shown in FIG. 8 (c).

When the empty space is thus secured between the two cutting lines 20, it is possible to stably insert the end of the excavating tool such as a hammer drill or the like, so that the road wrapping material around the manhole cover 10 (more precisely, The inner side of the line 20) can be more effectively removed.

When the road pavement material removal is completed, the top height of the manhole pillar 50 is made to coincide with the road pavement surface by using the steel lifting unit 70. In this case, the steel lifting unit 70 has been proposed in various structures in the technical field of the present invention, and thus detailed description of the structure and operation principle of the steel lifting unit 70 will be omitted.

9, the mold 60 is inserted between the manhole 32 of the manhole slab 30 and the manhole pillar 50, and as shown in FIG. 10, The quick setting mortar 42 is placed in the space outside the form 60 as shown in FIG.

The fast curing mortar 42 is a component for supporting the lower end of the manhole pillar 50. Even when the quickening mortar 42 is cured, the manhole pillar 50 can be pulled down And the height is maintained such that the upper end thereof coincides with the upper surface of the road pavement material. As shown in FIG. 11, when the quick curing mortar 42 is cured, the ascon 44 is placed on the quick setting mortar 42 to seal the road pavement layer 40 and the manhole pillar 50 from each other And then finishing the upper part of the area where the ascon 44 is laid, thereby completing the repair of the manhole.

12 is a flowchart of another embodiment of the manhole repair method according to the present invention.

Meanwhile, in the manhole repair method of the present invention, the process of forming a pair of cutting lines using the pair of cutting blades 552 is omitted, and the road surface around the manhole cover is immediately broken .

That is, as shown in FIG. 12, the manhole repair method according to the present invention includes a first step (S10) of crushing the road wrapping material around the manhole cover 10 into a circular shape; A second step S20 of cleaning the crushing line; A third step (S30) of shredding the road wrapping material in the inside of the crushing line; A fourth step S40 of aligning the top height of the manhole cover 10 with the road surface using the lifter unit; A fifth step (S50) of inserting a form between the manhole and the manhole; A sixth step (S60) of placing quick setting mortar in an outer space of the formwork; A seventh step (S70) of removing the steel lifting unit and pouring the ascon in the upper side of the quick-setting mortar when the rapid curing mortar curing is completed; And an eighth step (S80) of finishing and finishing the upper part of the asconplanted area.

If the process of forming the pair of cutting lines is omitted, the crushing line of the road wrapping material to be crushed by the crushing bits 554 is not smoothly formed. However, since the construction process is simplified, There is an advantage that it is saved. At this time, the remaining steps after shredding the road pavement material are the same as those of the manhole repair method shown in Fig. 1, and a detailed description thereof will be omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. It will also be appreciated that many modifications and variations will be apparent to those skilled in the art without departing from the scope of the invention.

10: Manhole cover 20: Cutting line
100: Magnet unit 200: Connection means
210: insertion rod 220: pivot bar
222: hinge shaft 224: bolt part
226: guide plate 230: rotating bar
232: slot 240: fixed unit
242: nut portion 300: outer case
310: outer frame 320: slide rail
330: outer upper frame 340: wheel
350: upper plate 400: inner case
410: inner frame 420: slide bar
430: inner upper frame 500: cutting unit
510: shift knob 520: power generating unit
530: drive shaft 540: rotary shaft
542: flange 544: holder
552: cutting blade 554: crushed bit
556: Brush 560: Cover
600: lifting unit 610: lifting screw
620: rotating handle 700: storage tank
710: injection nozzle 720: transfer pipe

Claims (9)

delete delete A machining unit configured to remove the road wrapping material, the machining unit including a magnet unit attached to an upper surface of the manhole cover, a drive shaft rotated by the power generating unit, and a machining tool detachably attached to the drive shaft, 1. A maintenance method for repairing a perimeter of a manhole using a road surface cutting apparatus having a magnet unit and connecting means for connecting the magnet unit and the processing unit so as to be able to remove a road pavement while revolving around the center,
A first step of forming two concentric cutting lines around the manhole cover;
A second step of crushing the roadway wrapping material between the two cutting lines;
A third step of cleaning between the two cutting lines;
A fourth step of crushing the road wrapping material in the inside of the cutting line;
A fifth step of aligning the top height of the manhole iron with the road surface using the iron lifting unit;
A sixth step of inserting a form between the manhole and the manhole;
Placing a quick-setting mortar in an outer space of the mold;
An eighth step of pouring the ascon in the upper side of the quick-setting mortar after removing the steel lifting unit when the rapid curing mortar curing is completed; And
And finishing and finishing the upper portion of the asconcrete pouring area,
The road surface cutting apparatus includes an inner case fixedly coupled to cover an upper portion of the processing unit, an outer case coupled to the inner case with a structure slidable in a vertical direction, And an elevating unit for elevating and lowering the elevating unit,
The connecting means is coupled to the magnet unit in a structure in which one side is rotatable, and the other side is fixedly coupled to the outer case,
Wherein the first to third steps are configured to adjust the processing depth of the road surface by raising and lowering the inner case. The method of claim 3,
The connecting means includes a turning bar vertically erected and coupled to the magnet unit so as to be rotatable, a turning bar coupled to the insertion rod by a hinge shaft whose lower side has a length in the horizontal direction and a bolt formed on the upper side, A rotating bar coupled to the outer case and having a slot through which an end of the bolt part can pass, and a nut part screwed to the bolt part passing through the slot to fix the insertion rod to the rotating bar, , ≪ / RTI >
Wherein the first step is configured to adjust the diameter of the cutting line by feeding the rotating bar in the longitudinal direction of the slot and fastening the nut part. The method of claim 3,
The inner case includes an inner frame that covers an upper surface, a front surface, right and left side surfaces of the processing unit, at least one slide bar provided to protrude outward of the inner frame, and an inner upper frame fixed to the upper side of the inner frame and,
The outer case includes an outer frame that covers an upper surface, a front surface, right and left side surfaces of the inner case, a slide rail that is arranged to extend in a vertical direction and inserted into the structure in which the slide bar is slidable in the vertical direction, An outer upper frame fixed to the outer frame, and a plurality of wheels provided at a lower end of the outer frame,
The elevating unit includes a rotary knob coupled to the outer upper frame in a structure rotatable about a vertical rotation axis, and an elevating screw whose upper end is fixedly coupled to the rotary knob and whose lower end is screwed to the inner upper frame Became,
Wherein the first to third steps are configured such that when the user rotates the rotary knob, the inner case is raised or lowered according to the rotating direction of the rotary knob. A machining unit configured to remove the road wrapping material, the machining unit including a magnet unit attached to an upper surface of the manhole cover, a drive shaft rotated by the power generating unit, and a machining tool detachably attached to the drive shaft, 1. A maintenance method for repairing a perimeter of a manhole using a road surface cutting apparatus having a magnet unit and connecting means for connecting the magnet unit and the processing unit so as to be able to remove a road pavement while revolving around the center,
A first step of forming two concentric cutting lines around the manhole cover;
A second step of crushing the roadway wrapping material between the two cutting lines;
A third step of cleaning between the two cutting lines;
A fourth step of crushing the road wrapping material in the inside of the cutting line;
A fifth step of aligning the top height of the manhole iron with the road surface using the iron lifting unit;
A sixth step of inserting a form between the manhole and the manhole;
Placing a quick-setting mortar in an outer space of the mold;
An eighth step of pouring the ascon in the upper side of the quick-setting mortar after removing the steel lifting unit when the rapid curing mortar curing is completed; And
And finishing and finishing the upper portion of the asconcrete pouring area,
The machining tool,
A ring-shaped flange which surrounds one side surface in the longitudinal direction of the rotating shaft, and a flange which is coupled to the rotating shaft such that one end in the longitudinal direction of the rotating shaft passes through the rotation center, A cutting tool having a pair of cutting blades spaced apart from each other in parallel,
A ring-shaped flange surrounding an outer circumferential surface on one side in the longitudinal direction of the rotating shaft; a plurality of holders arranged at equal intervals on an outer end of the flange; A shredding tool having a shredded bit coupled to a detachable structure,
A rotary shaft coupled to the drive shaft in a detachable manner; a ring-shaped flange surrounding one longitudinal outer circumferential surface of the rotary shaft; and a cleaning tool having a brush provided at an outer end of the flange,
Wherein the cutting tool is mounted on the driving shaft in the first step, the crushing tool is mounted on the driving shaft in the second step, and the cleaning tool is mounted on the driving shaft in the third step, . delete delete The method of claim 3,
The road surface cutting apparatus further includes a storage tank that is seated on the upper surface of the outer case to store the cooling fluid and a spray nozzle mounted on the lower end of the outer case and spraying the cooling fluid transferred from the storage tank onto the road surface So,
Wherein the first step forms a cutting line at a point where the cooling fluid is injected.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190035144A (en) * 2017-09-26 2019-04-03 안경섭 A manhole repair equipment having a variable support type cutting device and a lifting device
KR102067106B1 (en) 2019-06-07 2020-01-16 이승일 Manhole repairing and reinforcing method using thermosetting apparatus for high temperature steam injection
KR102136797B1 (en) 2019-11-01 2020-07-22 이승일 High temperature steam injection thermosetting apparatus for manhole repairing and reinforcing
KR102155593B1 (en) * 2020-03-04 2020-09-14 신흥이엔지 주식회사 Manhole repair method using road surface cutting and crushing apparatus
KR102168933B1 (en) * 2020-02-27 2020-10-22 드림인건설 주식회사 Road surface cutting and crushing apparatus for manhole repair

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JPH07229158A (en) * 1994-02-17 1995-08-29 Shinichi Tsubakimori Construction method of keeping and repairing manhole iron cover, and cutter therefor
KR100955789B1 (en) * 2008-02-29 2010-05-06 (주)옥련건설 Apparatus For Multi-Cutting the Road Surface to Repair a Manhole
KR100965935B1 (en) 2008-01-30 2010-06-24 주식회사 드림이앤씨 Apparatus For Cuttinng the Road Surface to Refair a Manhole
KR101553861B1 (en) * 2013-12-09 2015-09-17 미래피앤씨(주) Manhole repair road pavement cutting device and method using the same manhole repair

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07229158A (en) * 1994-02-17 1995-08-29 Shinichi Tsubakimori Construction method of keeping and repairing manhole iron cover, and cutter therefor
KR100965935B1 (en) 2008-01-30 2010-06-24 주식회사 드림이앤씨 Apparatus For Cuttinng the Road Surface to Refair a Manhole
KR100955789B1 (en) * 2008-02-29 2010-05-06 (주)옥련건설 Apparatus For Multi-Cutting the Road Surface to Repair a Manhole
KR101553861B1 (en) * 2013-12-09 2015-09-17 미래피앤씨(주) Manhole repair road pavement cutting device and method using the same manhole repair

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190035144A (en) * 2017-09-26 2019-04-03 안경섭 A manhole repair equipment having a variable support type cutting device and a lifting device
KR102065087B1 (en) * 2017-09-26 2020-03-02 안경섭 A manhole repair equipment having a variable support type cutting device and a lifting device
KR102067106B1 (en) 2019-06-07 2020-01-16 이승일 Manhole repairing and reinforcing method using thermosetting apparatus for high temperature steam injection
KR102136797B1 (en) 2019-11-01 2020-07-22 이승일 High temperature steam injection thermosetting apparatus for manhole repairing and reinforcing
KR102168933B1 (en) * 2020-02-27 2020-10-22 드림인건설 주식회사 Road surface cutting and crushing apparatus for manhole repair
KR102155593B1 (en) * 2020-03-04 2020-09-14 신흥이엔지 주식회사 Manhole repair method using road surface cutting and crushing apparatus

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