KR102155593B1 - Manhole repair method using road surface cutting and crushing apparatus - Google Patents

Abstract

According to the present invention, a manhole repairing method using a road surface cutting and crushing device includes: a road surface cutting and crushing step of cutting and crushing a part of a road surface positioned on an outer circumferential surface of a manhole frame by using the road surface cutting and crushing device; a manhole frame lifting step of lifting the manhole frame; a manhole frame fixing step of fixing the lifted manhole frame; and a packing and concrete filling step of installing packing in the manhole frame and filling concrete between the outside of the manhole frame and the cut road surface, wherein the road surface cutting and crushing device includes: a rotating shaft provided at the center of the manhole or the manhole frame on an upper portion of the manhole or in the manhole frame; a fixing part to which a lower end of the rotating shaft is fixedly coupled and which is fixedly installed onto the upper portion of the manhole or into the manhole frame; a rotating support part coupled to an upper portion of the rotating shaft to be rotatable; an expansion support part of which one end is coupled to an outer circumferential surface of the rotating support part; a moving vehicle which is provided to be movable, to which the other end of the expansion support part is coupled, and on which a cutting motor is mounted; and a cutting blade coupled to the rotating shaft of the cutting motor to cut the road surface. The road surface cutting and crushing device can further include a crushing part crushing the road surface between the cutting blade and the outer circumferential surface of the manhole frame at one side of the cutting blade.

Description

Manhole repair method using road surface cutting and crushing apparatus}

The present invention relates to a manhole repair method, and more specifically to a manhole repair method using a device in which road surface cutting and crushing are simultaneously performed.

The number of vehicles driving on the road gradually increases, and the road gradually deteriorates as time passes as the vehicle increases in speed and weight, and a phenomenon in which the installed manhole is depressed or cracked occurs.

In addition, the manhole portion is often lower or higher than the surface of the road due to the construction of the pavement layer of the road.

As described above, if the height of the manhole and the road surface around the manhole is protruding or depressed, problems such as vehicle damage and traffic sociability caused by impact may occur during vehicle operation, so that the manhole installed on the road pavement is repaired. .

In such manhole repair work, the asphalt, which is the road pavement surface on which the manhole is installed, is crushed with a breaker or cut with a cutter, and then covered with the manhole frame buried under the road surface and the manhole cover exposed to the outside of the road pavement surface. Replace it with a new one and repair it.

However, the operation of removing the excavation after crushing the road pavement has a large noise generated during the operation, and also requires excessive manpower for the operation and takes a long time.

Recently, a cutter is known that cuts the road pavement outside the manhole in a circular shape, but after cutting the road pavement surface, the pavement surface between the manhole and the cut surface is still crushed by a person, or the cut surface is lifted together with the manhole and moved to the workplace. After doing so, the road surface around the manhole has no choice but to be shredded, which takes a lot of time and manpower to work.

Korean Patent Application Publication No. 10-2009-0083669

The present invention is an invention conceived to solve the above-described problems of the prior art, since the road surface is crushed at the same time as the road surface is cut, it does not require additional work of crushing the cut road surface existing around the manhole after the road surface cutting operation. It is to reduce the time and manpower required for manhole repair.

The problems of the present invention are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

The manhole repair method using the road surface cutting and crushing device according to the present invention for achieving the above object is a road surface cutting and crushing step of cutting and crushing a part of the road surface located on the outer circumference of the manhole frame using a road surface cutting and crushing device, A manhole frame raising step of lifting the manhole frame, a manhole frame fixing step of fixing the raised manhole frame, and a packing for installing a packing inside the manhole frame, and filling concrete between the outside of the manhole frame and the cut road surface, and Including a concrete filling step, wherein the road surface cutting and crushing device is a support shaft provided at the center of the manhole or the manhole frame, and the lower end of the support shaft is fixedly coupled to the top of the manhole or inside the manhole frame. A fixing part fixedly installed inside the manhole frame, a rotation support part rotatably coupled to the upper part of the support shaft, an elastic support part having one end coupled to the outer circumferential surface of the rotation support part, and the other end of the elastic support part is coupled to be movable, A moving cart on which the cutting motor is mounted and a cutting blade coupled to the rotation shaft of the cutting motor to cut the road surface, further comprising a crushing part on one side of the cutting blade to crush the road surface between the cutting blade and the outer peripheral surface of the manhole frame can do.

In addition, the crushing portion is composed of a plurality of crushing blades, the crushing blade is formed in a cylindrical shape and a crushing protrusion is provided on the outer circumferential surface, and the crushing portion may be composed of a plurality of crushing blades having different heights (H).

In addition, the crushing portion may be configured to gradually decrease the diameter (D) of the crushing portion toward the outer peripheral surface of the manhole frame from the cutting blade.

In addition, it includes a first elastic member having one end coupled to the rotation support and the other end open to form an empty space therein, and a second elastic member having one side inserted into the other end of the first elastic member to enable linear movement. , The second elastic member is coupled to the first elastic member in a non-rotatable state, and the other side of the second elastic member has a circular outer circumferential surface, and a thread is provided on the outer circumferential surface, and a nut is coupled to the thread. I can.

In addition, the moving cart may include a lifting plate on which the cutting motor is mounted, and the lifting plate may be provided with a housing for supporting an end of the rotation shaft of the cutting motor through the cutting blade and the crushing part.

The manhole repair method using the road surface cutting and crushing device according to the present invention for solving the above problems has the following effects.

First, the road surface is cut and crushed at the same time.

In general, for manhole repair, the road surface remaining between the cut surface and the outer circumferential surface of the manhole was crushed manually by an operator using an electric drill after cutting the road surface. This work process takes a lot of time and manpower, and the work results were also unsatisfactory. However, the road surface cutting and crushing device according to the present invention can crush all the road surface of the outer circumferential surface of the manhole together with the road surface cutting, and thus has the advantage of greatly shortening the working time.

Second, it is possible to control the crushing area.

In general, the repair area around the manhole is different, so the distance between the road surface cut surface and the manhole is not constant. The road surface cutting and crushing device according to the present invention has the advantage that the operator can control the size of the crushed surface by separating or combining the crushing blades.

The effects of the present invention are not limited to the effects mentioned above, and other effects that are not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a flow chart showing a manhole repair method using a road surface cutting and crushing device according to the present invention
Figure 2 is a perspective view showing a road surface cutting and crushing device according to the present invention
Figure 3 (a) is a top view showing the center fixing frame of the road surface cutting and crushing device according to the present invention
Figure 3 (b) is a cross-sectional view showing a fixed foot constituting the central fixing frame of the road surface cutting and crushing device according to the present invention
Figure 4 is a cross-sectional view showing a rotating support and a fixed portion of the road surface cutting and crushing device according to the present invention
Figure 5 is a perspective view showing the extension support of the road surface cutting and crushing device according to the present invention
Figure 6 is a perspective view showing the crushed cut portion of the road surface cutting and crushing device according to the present invention
Figure 7 is a side view showing a crushed cut portion of the road surface cutting and crushing device according to the present invention

Hereinafter, preferred embodiments of the present invention in which the object of the present invention can be realized in detail will be described with reference to the accompanying drawings. In the description of the present embodiment, the same name and the same reference numerals are used for the same configuration, and additional descriptions thereof will be omitted.

In addition, in describing an embodiment of the present invention, it is stated in advance that components having the same function are only used with the same names and symbols, and are not substantially identical to those of the related art.

In addition, terms used in the embodiments of the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In addition, in the embodiments of the present invention, terms such as "include" or "have" are intended to designate the existence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification. It is to be understood that the possibility of the presence or addition of other features, numbers, steps, actions, components, parts, or combinations thereof, or further other features, is not excluded in advance.

Hereinafter, the present invention will be described in detail.

A manhole repair method using the road cutting and crushing device of the present invention will be described with reference to FIGS. 1 to 6.

1 is a block diagram of a manhole repair method using a road surface cutting and crushing device of the present invention. And Figures 2 to 7 are views showing a road surface cutting and crushing apparatus according to the present invention.

According to Figure 1, the manhole repair method using the road surface cutting and crushing device of the present invention, the road surface cutting and crushing step (S100), the manhole frame raising step (S200), the manhole frame fixing step (S300), packing and concrete filling step It may include (S400).

The road surface cutting and crushing step (S100) is a step of cutting and crushing a part of the road surface on which the manhole frame 3 is installed. That is, in the case of a subsidence of the manhole frame 3 caused by vehicle traffic or the like, this is a step of cutting and crushing the surrounding road surface 50 of the subsided manhole frame 3.

Conventionally, after cutting the road surface, a person manually crushes the road surface between the cut surface and the manhole frame (3) using a hydraulic hammer drill, or by lifting the road surface and the manhole at once and moving to the work place, the manhole frame (3) ) The cut road surface attached to) was removed one by one by a hammer and a chisel.

However, in the manhole repair method using the road surface cutting and crushing device of the present invention, since the road surface between the cut surface and the outer peripheral surface of the manhole is crushed at the same time as cutting, a separate road surface crushing operation is not required.

Next, the manhole frame raising step (S200) is a step of lifting the subsided manhole frame (3). In order to raise the manhole frame 10, one end of the manhole frame 3 may be directly grasped and raised, or the manhole frame 3 may be lifted by pressing the inner and outer sides of the manhole frame 3. It is preferable that the manhole frame 3 be raised by the same height as the surrounding road surface in order not to cause obstacles to vehicle traffic or the like after the manhole repair is completed.

Next, in the manhole frame fixing step (S300), the manhole frame 3 is filled with a member such as gravel or stone in at least a portion between the raised manhole frame 3 and the lower portion of the manhole frame 3 and the ground. This is the step to keep you in an impressed state.

Thereafter, in the packing and concrete filling step (S400), a packing such as a tube is installed inside the manhole frame (3), and the manhole repair is finished by filling and curing the empty space between the road surface cutting surface and the outer peripheral surface of the manhole frame (3). .

Figure 2 shows a road surface cutting and crushing device used in the present invention.

Specifically, the road surface cutting and crushing device according to the present invention is to cut and crush the road pavement surface corresponding to the outside of the manhole 1 consisting of the manhole frame 3 and the manhole cover 2 assembled thereto according to the shape of the manhole. Consists of.

Such a road surface cutting and crushing device 100 is configured to include a fixed part 110, a rotating support part 120, a telescopic support part 400, a moving carriage 300, and a crushing cutting part 500.

The fixing part 110 is provided by being fixed to the center of the circular manhole cover 2 or manhole frame 3 as shown in FIG. 2.

At this time, the fixing part 110 may be fixed on the upper part of the manhole cover 2, or when the manhole cover 2 is open, the manhole frame 3 may be fixed by using a central fixing frame 200 fixed to the inner wall of the manhole cover 2 It may be provided in the center of the circular manhole frame (3).

First, when the fixing part 110 is fixed on the top of the manhole cover 2, the fixing part 110 may include a magnet part 111 and a support shaft 113.

The magnet part 111 may be composed of a permanent magnet or an electromagnet. When the magnet part 111 is provided as a permanent magnet, the permanent magnet is disposed inside the box structure, and such a permanent magnet is external to the box structure. It may be composed of a magnetic lift installed to be spaced apart from the bottom surface of the box structure by the rotation operation of the lever 112 installed in.

When the lever 112 is rotated in one direction, the magnet part 111 can be separated from the manhole cover 2 by blocking or reducing the effect of the permanent magnet on the manhole cover 2, and the lever ( When 112 is rotated in the other direction, the magnetic force of the permanent magnet affects the manhole cover 2 so that the magnet part 111 may be fixed to the manhole cover 2 by magnetic force.

On the other hand, when the magnet part 111 is an electromagnet, the magnet part 111 can be fixed or released to the manhole cover 2 by turning on/off the magnetic force of the electromagnet through a power switch and a power supply part.

Next, a case where the fixing part 110 is fixed to the center of the manhole frame 3 with the manhole cover 2 open will be described with reference to FIG. 3(a).

The central fixing frame 200 includes a body 210 and three fixed feet 220 coupled to the body 210 and configured to be 120 degrees apart in the circumferential direction.

Specifically, looking at the configuration of the fixed foot 220 using FIG. 2(b), each fixed foot 220 includes a movable part 221 and a fixed part 222, and the movable part 221 has one end It is configured to be inserted into the fixing part 222 so as to be able to move linearly to change its position.

The fixing part 222 is configured such that a space is formed therein, one end is coupled to the body 210, and one end of the movable part 221 is inserted at the other end.

Preferably, the inner space of the fixing part 222 has a polygonal cross section, and one side of the movable part 221 inserted into the fixing part 222 of the movable part 221 corresponds to the cross-sectional shape of the fixing part It is formed in a shape, the other side of the movable part 221 is formed in a circular shape and a screw thread is provided on the outer circumferential surface, and a screw 224 may be coupled to the screw thread.

Since the fixed portion 222 and the movable portion 221 have a polygonal cross-section, the movable portion 221 is coupled to the fixed portion 222 in a state in which relative rotation is impossible.

This configuration enables the movable part 221 to move in a straight line relative to the fixing part 222 when the screw 224 rotates.

Meanwhile, an elastic body 230 is provided inside the fixing part 222 where the end of the movable part 221 and the end of the movable part 221 face each other.

Looking at the fastening method of the central fixing frame 200, first, the three movable parts 221 are elastically deformed and fixed to the inner wall of the manhole frame 3.

Since the movable part is in a state in which elastic force is applied to the outer side in the radial direction of the manhole frame 3 by the elastic body 230, after compressing the movable part 221 against the fixing part 222, the inside of the manhole frame 3 When the compressive force is released at, the movable part 221 is temporarily fixed by the elastic force of the elastic body 230 in the manhole frame 3.

Meanwhile, since the elastic force applied to the three movable parts 221 is the same, the support shaft 113 coupled to the central fixing frame 200 is located at the center of the manhole frame 3.

Thereafter, in order to more accurately set the center position and securely fix the center fixing frame 200 in the manhole frame 3. The nut 240 is rotated to tension the movable part 221 outward in the radial direction.

A laser displacement sensor 260 is mounted on the fixing part 222 and may be configured to inform an operator of the distance to the inner wall of the manhole frame 3.

In addition, a horizontal bar may be installed on the body 210 to be configured to check whether the central fixing frame 200 is installed horizontally.

Next, using FIG. 4, a configuration of the rotation support unit 120 will be described. The rotation support part 120 is rotatably assembled to the upper end of the fixing part 110 and is rotatably coupled to the support shaft 113 in a forward or reverse direction around a rotation center.

This rotation support unit 120 includes a hollow cylindrical member 121 that is rotatably assembled via a plurality of bearing members 122 inserted into the support shaft 113 constituting the fixing unit 110 can do.

At the upper end of the support shaft 113, an end plate 123 may be fastened to the upper end of the support shaft 113 so that the rotation support part 120 does not deviate to the outside.

Meanwhile, an elastic support part 400 may be coupled to the cylindrical member 121 constituting the rotation support part 120.

Hereinafter, with reference to Fig. 5(a), a detailed look at the elastic support part 400 will be given.

The elastic support part 400 is a member whose one end is coupled to the outer surface of the cylindrical member 121 so as to be adjustable in length.

The expansion and contraction support part 400 may be adjusted in length according to the size of the road surface by calculating the size to be cut according to the size of the manhole.

In one embodiment, the elastic support part 400 includes a first elastic member 410 having one end coupled to the outer surface of the cylindrical member 121 and a second elastic member 410 having one end inserted into the other end of the first elastic member 410. It may include an elastic member 420.

One side of the second elastic member 420 is composed of a rod having a polygonal shape, and the inside of the first elastic member 410 into which one side of the second elastic member 420 is inserted is the second elastic member 420 ) And the same cross-sectional shape may be provided.

Meanwhile, the other side of the second elastic member 420 is composed of a circular rod, a thread is formed on an outer circumferential surface, and a nut 422 is coupled to the thread.

Looking at the length adjustment process of the elastic support part 400, first, the second elastic member 420 is moved relative to the first elastic member 410 to position the second elastic member 420 at a desired location. Let it.

Thereafter, the nut 422 is rotated so that the nut 422 comes into contact with the protrusion 411 formed on the outer peripheral surface of the other end of the first elastic member 410.

In this state, since the nut 422 is in contact with the protrusion 411, the second elastic member 420 can be moved in a direction away from the first elastic member 410, but the first elastic member (410) It is impossible to be inserted further inside.

As described above, the nut 422 and the protrusion 411 are clamped in a state in which the first elastic member 410 is placed in a desired position and then the nut 422 is rotated to a position contacting the protrusion 411. The positions of the first and second elastic members 410 and 420 are fixed by fastening and fixing them.

There is no particular restriction on the configuration of the clamp, and a conventional means such as a circular clamp or a tong-type clamp may be used.

On the other hand, looking at another embodiment, as shown in Figure 4 (b), the elastic support part 400 has one end of the first elastic member 410 and one end coupled to the outer surface of the cylindrical member 121 It may include a second elastic member 420 inserted into the other end of the first elastic member 410.

At this time, a plurality of through holes 413 and 423 are formed in the first elastic member 410 and the second elastic member 420, respectively, and the first elastic member 410 is moved so that the first elastic member In a state in which the through holes 413 and 423 of the second elastic member 420 are matched with the 410, a pin is inserted into the matched at least one through hole 413 and 423 to the elastic support part 400 You can also fix the position of.

Next, a configuration of the mobile cart 300 will be described with reference to FIG. 6.

The mobile cart 300 is coupled to the other end of the extension support unit 400 to cut and crush a road surface, that is, a road pavement surface around a manhole.

The moving cart 300 includes a floor plate 310, a lift plate 320 that can be moved up and down in a direction perpendicular to the road surface with respect to the floor plate 310, and a crushed cutting part 500 installed on the lift plate 320 Includes.

The crushing and cutting part 500 is a cutting motor 520, a cutting blade 530 that is coupled to the rotation shaft 521 of the cutting motor 520 and rotates according to the rotation of the cutting motor 520 to cut the road pavement surface. Includes.

In addition, a crushing blade 600 for crushing the road pavement surface between the cutting blade 530 and the outer peripheral surface of the manhole is additionally mounted on the rotation shaft 521 of the cutting motor 520 to which the cutting blade 530 is coupled. Can be.

In addition, a housing 330 for supporting the rotation shaft 521 of the cutting motor 520 may be additionally provided on the elevator plate 320.

Meanwhile, the rotation shaft 521 of the cutting motor 520 may be integrally formed with the motor shaft, but may be connected to the motor shaft through a gear.

The configuration of the crushing blade 600 will be described in detail using FIG. 7.

A shielding film 540 is included between the cutting blade 530 and the crushing blade 600 to prevent the crushed material on the road surface cut by the cutting blade 530 from splashing.

On the other hand, the crushing blade 600 may be composed of a plurality. This is to adjust the width of the crushing blade 600 according to the distance since the distance between the cutting blade 530 and the outer peripheral surface of the manhole is variable.

The mall crushing blade 600 is configured in a cylindrical shape, and a crushing protrusion 610 may be formed on the outer circumferential surface.

On the other hand, the crushing blade 600 is provided with a plurality of crushing blades 600 having different heights (H), and can be properly selected and fastened by an operator according to the distance between the cutting blade 530 and the outer peripheral surface of the manhole. .

In addition, the diameter D of the crushing blade 600 may be configured to gradually decrease from the cutting blade 530 along the outer peripheral surface direction of the manhole.

This may cause vibration when the road surface is crushed by the crushing blade 600. When a large area is crushed at once, such vibration may be large, and the cutting surface may be uneven or crushing may not be effectively performed.

Accordingly, the diameter of the crushing blade 600 may be gradually decreased from the cutting blade 530 to the outer peripheral surface of the manhole, so that the crushing of the road surface proceeds sequentially from the cutting surface.

After all the crushing blades 600 are mounted, a fixing ring 650 that can prevent the crushing blade 600 from being separated is fastened and fixed.

After both the crushing blade 600 and the fixing ring 650 are fastened, the rotation shaft of the cutting motor 520 is inserted into one side of the housing to be coupled to the upper portion of the housing.

A shielding film 340 made of rubber or the like is additionally provided at a lower end of one side of the housing to prevent splashing of the crushed pulverized material.

As described above, the road surface cutting and crushing apparatus according to the present invention has the effect of greatly shortening the working time by simultaneously cutting and crushing the road surface during manhole repair work.

As described above, preferred embodiments according to the present invention have been examined, and the fact that the present invention can be embodied in other specific forms without departing from its spirit or scope in addition to the above-described embodiments is known to those skilled in the art. This is obvious to them. Therefore, the above-described embodiments are to be regarded as illustrative rather than restrictive, and accordingly, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

1: manhole
100: crushing device
110: fixing part
111: magnet part
112: lever
113: support shaft
120: rotation support
121: cylindrical member
122: bearing member
123: end plate
2: manhole cover
200: central fixing frame
210: body
220: fixed foot
221: movable part
222: fixing part
224: screw
230: elastic body
240: nut
260: laser displacement sensor
3: manhole
300: mobile cart
310: base plate
320: housing
330: screen
400: expansion support
410: first elastic member
411: protrusion
413, 423: through hole
420: second elastic member
421: thread
422: nut
500: crushed cut
520: cutting motor
521: rotating shaft
530: cutting edge
540: screen
600: crushing blade
610: crushing protrusion
650: retaining ring
D: diameter
H: height

Claims (6)

A road surface cutting and crushing step of cutting and crushing a part of the road surface located on the outer peripheral surface of the manhole frame using a road surface cutting and crushing device;
A manhole frame lifting step of lifting the manhole frame;
A manhole frame fixing step of fixing the raised manhole frame; And
Including a packing and concrete filling step of installing a packing inside the manhole frame and filling concrete between the outside of the manhole frame and the cut road surface,
The road surface cutting and crushing device;
A support shaft provided in the center of the manhole or the manhole frame in the upper portion of the manhole or inside the manhole frame;
A fixing part fixedly coupled to the lower end of the support shaft and fixedly installed in the upper portion of the manhole or inside the manhole frame;
A rotation support portion rotatably coupled to an upper portion of the support shaft;
An elastic support part having one end coupled to the outer circumferential surface of the rotation support part;
A moving cart provided to be movable, to which the other end of the telescopic support part is coupled, and a cutting motor is mounted; And
Including; a cutting blade coupled to the rotation shaft of the cutting motor to cut the road surface,
It is configured to further include a crushing portion for crushing the road surface between the cutting blade and the outer peripheral surface of the manhole on one side of the cutting blade,
In addition, the crushing unit is configured to include a crushing blade,
The crushing blade is formed in a cylindrical shape, and a plurality of crushing protrusions are provided on the outer circumferential surface of the cylindrical crushing blade, and the crushing portion includes one or more crushing blades, but when a plurality of crushing blades are provided, the height of each crushing blade ( H) is configured so that the height (H) is different from each other according to the distance between the crushing blade and the outer circumferential surface of the manhole frame, and the crushing portion toward the outer circumferential surface of the manhole frame from the cutting blade, the diameter of the crushing blade (D) is configured to gradually decrease,
On the other hand, the mobile cart includes a lifting plate on which the cutting motor is mounted,
The elevator plate is configured to be elevating on the upper part of the floor plate fixedly installed on the mobile cart,
In addition, the elevator plate has a housing for supporting the end of the rotation shaft of the cutting motor through the cutting blade and the crushing portion, and a screening film for preventing the crushed crushed material from splashing outward at a lower end of one side of the housing, and Manhole repair method using crushing device.
delete delete delete The method of claim 1,
The road surface cutting and crushing device
A first elastic member having one end coupled to the rotation support and the other end open to form an empty space therein; And
Including; one side is inserted into the other end of the first elastic member and provided to be linearly movable;
The second elastic member is coupled to the first elastic member in a non-rotatable state, and the other side of the second elastic member has a circular outer circumferential surface, and a thread is provided on the outer circumferential surface, and a nut is coupled to the thread. Become,
On the other hand, the road surface cutting and crushing step,
Manhole repair method using a road surface cutting and crushing device further comprising the step of adjusting the position of the road surface cutting and crushing by adjusting the relative positions of the first elastic member and the second elastic member.
delete

Images