KR100578554B1 - Manhole maintenance method and suppoting device for the method - Google Patents

Abstract

The present invention provides a manhole repair method for repairing a manhole exposed to the road surface using a lid and a support frame made of a circular or square. This manhole repair method removes the support frame and the lid to be repaired and forms a vertical insertion hole corresponding to the fixing hole formed in the flange of the support frame to be installed to a predetermined depth on the manhole wall. The locking bars are respectively installed in the insertion holes, the level supporting members are coupled to the respective locking bars, and then the supporting frame is supported by the level supporting members by placing the supporting frame so that the locking bars are inserted into the fixing holes formed in the flanges of the corresponding supporting frames. do. After adjusting each level supporting member so that the support frame is horizontal with the surrounding ground, the support is installed in the manhole and the support frame is removed. After the fixed ground is first casted to the height of the level supporting member, and the support frame is rejoined, the support frame fixing members are respectively coupled to the locking bar to fix the support frame, and the fixed ground is second placed to be horizontal with the surrounding ground. After curing, remove the support installed in the manhole. The support for such a manhole repair method comprises a knuckle, a pair of long bolts, a pair of press plates, and a pair of plywood.

Description

Square and transverse manhole repair method and support therefor {MANHOLE MAINTENANCE METHOD AND SUPPOTING DEVICE FOR THE METHOD}

1 is a view for explaining the shape of the manhole to which the rectangular lid and the support frame is applied;

2 is a view for explaining the structure of the lid and the support frame of a conventional rectangular manhole;

3 is a flow chart for explaining a manhole repair method according to the present invention;

4A and 4B are views for explaining a support for manhole repair according to a preferred embodiment of the present invention;

5 is a view for explaining a cross section of the manhole repaired by applying a manhole repair method and a support therefor according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: support 20: knuckle

22: screw hole 30: long bolt

40 pressure plate 42 nut

50: plywood 60: locking bar

70 level support member 72, 82 washer

74, 76, 84, 86: nut 80: support frame fixing member

100: lid 110: support frame

112: (support frame) flange 114: fixing hole

130: manhole wall 132: insertion hole

200: Fixed ground A: (primary casting) Fixed ground

B: (Secondary casting) Fixed ground C: Surrounding ground

The present invention relates to a rectangular and transverse manhole repair method and a support therefor, and more particularly, to a square and transverse manhole repair method and a support therefor for repairing the damaged ground, the lid and the support frame of the manhole It is about.

Typically, the manhole is configured to have a manhole cover that is exposed on the ground so that rainwater on the ground and the like can be drained to the sewer pipe together with maintenance of the sewer pipe. As shown in Figures 1 and 2 such a manhole comprises a portion exposed to the upper surface of the road using a lid 100 and the support frame 110 is usually made of round and square. At this time, since the lid 100 and the support frame 110 are exposed and installed on the road surface, the lid 100 and the support frame 110 are subjected to repeated impact loads acting by the vehicle. Therefore, since the fixed ground 200 on the flange 112 of the support frame 110 is always exposed to repetitive impact, even if the manhole is firmly constructed, the damage is prevented by the shock transmitted through the lid 100 and the support frame 110. There is an inevitable maintenance problem.

Korean Laid-Open Patent Publication No. 10-2004-0005722 "Manhole repairing method and the leveling device used in the method" is a manhole maintenance level by using a horizontal adjusting device formed of a triangular horizontal cylinder during the repair of the manhole. By forming it, manholes can be prevented from protruding or recessed even on inclined roads, and large accidents can be prevented. I am suggesting a method. Such a manhole cover repair method includes a manhole separation step of digging out the manhole cover and the manhole frame by excavating asphalt outside the manhole with a cutter and a rock drill; At the inner circumference of the manhole frame of the separated manhole, a horizontal adjustment device formed of a plurality of hydraulic cylinders is mounted, and then the manhole frame inner circumferential surface is pressurized according to the adjustment formed at the end of the piston rod of the hydraulic cylinder. Is positioned above the manhole opening, the horizontal adjustment step so that the mandrel frame is horizontal to the road surface so that the adjustment bar of the horizontal adjustment device across the road surface; The space between the manhole frame and the manhole hole is equipped with a cradle, the manhole hole inside the formwork, and the manhole frame fixing step of placing, laying and compacting mortar on the excavation of the manhole outside.

Republic of Korea Patent Publication No. 10-0374540 "Manhole repair method and the device used in the method" is a rockfall prevention pedestal to open the manhole cover to support the manhole provided on the road to support the inner circumference of the manhole ball A preparation step for installing; A separation step of installing a demolition lifter on the upper periphery of the manhole and adjusting the adjustment rod to seat a hook between the manhole and the manhole, and separating the manhole by operating the lifter; A manhole installation step of mounting a triangular horizontal adjuster to match the level of the road surface and the manhole, and installing a formwork on the inner circumference of the manhole to prevent leakage of mortar being poured; A first pouring step of inserting the super speed mortar at an appropriate level between the installed manhole and the road surface; A second pouring step of removing the triangular leveling guide and the formwork after the first mortar is hardened and injecting the superscopy mortar to a level slightly lower than the road surface; It is proposed to repair the manhole cover consisting of the finishing step is completed by covering the manhole cover after completion of the cemented carbide mortar, and laying the finishing material on top of the carbide mortar.

However, the manhole repaired by the conventionally proposed method is a problem that needs to be repaired again in a short period of time. That is, when the manhole has been repaired by the conventionally proposed method, a problem arises in that the fixed ground 200 covered on the flange 112 of the support frame 110 is easily broken. In addition, since the conventional support for the manhole repair method is configured for the repair of the circular manhole by applying hydraulic equipment, as shown in FIG. 1, a plurality of caps 100 and a support frame 110 are arranged in a rectangular manhole There is a problem that is not suitable for the repair.

Therefore, the present invention improves the problems of the conventional manhole repair method and the support for such a new type of square and transverse manhole repair method that can reduce the maintenance problem even in long-term use by making the manhole repair more effective And a support for the same.

According to a feature of the present invention for achieving the above object, the present invention in the square and cross manhole repair method exposed to the road surface using a lid or support frame made of a circular or square, fixing the support frame to be repaired Removing the ground and removing the support frame and the lid to be repaired; Forming a vertical insertion hole corresponding to the fixing hole formed in the flange of the support frame to be installed at a predetermined depth on the manhole wall; Locking bars are respectively installed in the insertion holes, and the level supporting members are coupled to the respective locking bars, and then the support frame is placed so that the locking bars are inserted into fixing holes formed in the flanges of the supporting frames, respectively, to the level supporting members. Allowing the support frame to be supported by the support frame; Adjusting each level supporting member so that the support frame is horizontal with the surrounding ground, and then installing a support in the manhole and removing the support frame; First placing the fixed ground up to the height of the level supporting member, re-engaging the supporting frame, and then fixing the supporting frame by coupling the supporting frame fixing member to the locking bar, respectively; And placing the fixed ground on the secondary ground so as to be horizontal with the surrounding ground to remove the support provided in the manhole.

In the square and cross manhole repair method according to the present invention, the locking bar is a long bolt with a screw formed on the outer circumferential surface, each of the level supporting member and the support frame fixing member is provided with a pair of nuts screwed to the long bolt The upper and lower sides of the support frame may be locked by double nuts to fix the position of the support frame.

In the rectangular and transverse manhole repairing method according to the present invention, each of the level supporting member and the support frame fixing member has a washer positioned and coupled between the nut and the support frame, so that the washer is located on the support frame side. It is possible to support the position of the support frame by tightening the nut by being fixed to and formed.

According to another feature of the present invention for achieving the above object, the present invention is a manhole which is installed in the manhole to pour the fixed ground during repair of the manhole exposed to the road surface using a lid and a support frame made of a circular or square A support for repairing, comprising: a knuckle formed with a pair of screw holes penetrating parallel to a central axis at both ends; A pair of long bolts each coupled to the screw hole so as to be rotatable; A pair of press plates coupled with a nut on which the long bolts are rotatably coupled to the outside thereof in parallel axes; And a plywood coupled to each of the pressing plates to be in close contact with an inner wall of the manhole to form a boundary of the fixed ground.

In the support for manhole repair according to the present invention, the plywood may be coated with a paint surface that is in close contact with the inner wall of the manhole.

The manhole repair method according to the present invention reinforces the support structure of the manhole support frame to compensate for the weakness of the fixed ground around the manhole, which is often broken, so that the height of the surrounding ground and the support frame can be more precisely matched. It is characteristic. And the support for manhole repair can be configured relatively simple, so that it can be conveniently used when repairing the manhole that is continuously installed. In particular, the present invention is characterized in that the rectangular and transverse manholes can be easily repaired.

Figure 3 is a flow chart for explaining a manhole repair method according to the present invention, Figure 5 is a view for explaining a cross section of the manhole repaired by applying a manhole repair method and a support therefor according to a preferred embodiment of the present invention to be.

3 and 5, the manhole repair method according to the present invention is provided to repair the manhole exposed to the road surface using a lid and the support frame 110 made of a circular or square. Manhole repair method according to the present invention, as well as a single manhole (square manhole) consisting of a circular or square lid and the support frame 110, as shown in Figure 1 manhole consisting of a plurality of lids 100 and the support frame 110 ( It is easy to repair the transverse manhole.

Manhole repair method according to the present invention is the locking bar 60 is installed vertically to the manhole wall 130, and the level of the support frame 110 by using the level support member 70 is horizontal with the surrounding ground (C) After the fitting, the fixed ground is first poured (A), the support frame 110 is coupled to the locking bar 60, and then fixed with the support frame fixing member 80 to fix the fixed ground (B). To repair the manhole.

As described above, the manhole attachment method according to the present invention first removes the fixed ground (200, see FIG. 1) of the support frame 110 to be repaired, and the support frame 110 and the lid (100, FIG. 1) to be repaired. Remove the (S500). In addition, a vertical insertion hole 132 corresponding to the fixing hole 114 formed in the flange 112 of the support frame 110 to be installed is formed at a predetermined depth on the manhole wall 130 (S510). The locking bars 60 are respectively installed in the insertion holes 132 formed as described above, and the level supporting members 70 are coupled to the respective locking bars 60, and the locking bars 60 respectively support the supporting frame 110. The support frame 110 is placed so as to be inserted into the fixing hole 114 formed in the flange 112 of the support 112 so that the support frame 110 is supported by the level supporting member 70 (S520). Next, after adjusting each level supporting member 70 so that the support frame 100 is horizontal with the surrounding ground C, the support 10 is installed in the manhole and the support frame 110 is removed (S530). Then, after the fixed ground is first casted to the height of the level supporting member 70 and the support frame 110 is coupled again, the support frame fixing member 80 is coupled to the locking bar 60 to support it. The frame 110 is fixed (S540). Finally, after curing by placing the fixed ground to the secondary ground (B) so as to be horizontal to the surrounding ground (C) to remove the support 10 installed in the manhole (S550).

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, FIGS. 3 to 5, and the same reference numerals will be given for components that perform the same function in FIGS. 1 to 5. Meanwhile, in the drawings, a general manhole repair method and a detailed description of the technical contents of the apparatus used therein are easily understood by those skilled in the art, and thus, the descriptions will be briefly omitted or omitted. It was. In addition, the size and shape of the assembled portion or the connecting portion in the drawings of the drawings may be slightly different or the dimensional difference from the other drawings are merely urban differences and do not limit or change the technical spirit of the present invention.

4A and 4B are views for explaining a support for manhole repair according to a preferred embodiment of the present invention.

4A and 4B, the support 10 for manhole repair according to a preferred embodiment of the present invention is a manhole during repair of a manhole exposed to a road surface using a lid and a support frame made of a circular or rectangular shape. It is installed so that the fixed ground 200, A, B (see Figs. 1 and 5) can be poured. Such a support 10 according to a preferred embodiment of the present invention can be configured relatively simply without using an actuator such as a hydraulic cylinder as in the prior art so that it can be easily applied in the field without a peripheral device such as a hydraulic device. In particular, the support 10 according to the present invention, as shown in Figure 1, by applying a rectangular lid and the support frame so that it can be easily repaired by using a plurality of the maintenance of the manhole that is continuously installed do.

Such a support 10 is provided with a knuckle 20, a pair of long bolts 30, a pair of pressing plates 40, a pair of plywood 50. The knuckle 20 has a pair of screw holes 22 penetrating parallel to the central axis at both ends. The pair of long bolts 30 are respectively rotatably coupled to the screw holes 22 of the knuckle 20. The pair of pressure plates 40 are coupled to the outer side of the nut 42 is coupled to the long bolt 30 is rotatably parallel to each other. Here, the nut 42 is installed so as to be biased to the upper portion of the pressing plate 40, so that the support 10 can be alternately installed when repairing a single square or circular manhole. At this time, the knuckle 20 and the pressure plate 40 are applied to the metal material because the support of the load is required. And the plywood 50 is coupled to each of the pressing plate 40 is in close contact with the inner wall in the manhole to form a boundary of the fixed ground (A, B). Such plywood 50 may be fixed by applying the pressure plate 40 and the bolt and the butterfly nut. At this time, the plywood 50 in this embodiment is to be coated with a paint, such as varnish, paint in close contact with the inner wall in the manhole so that the inner surface of the concrete or ascon to form the inner surface of the manhole to have a smooth surface.

The support 10 according to the present embodiment is configured to be directly applicable to the repair of a manhole having a rectangular lid and a support frame, in particular, but the support of the present embodiment is also used to repair a manhole made of a circular lid and a support frame. After applying the auxiliary plywood to the front surface of the plywood 50 of 10 or removing the plywood 50 may be used to push the auxiliary plywood to the pressure plate 40.

The support 10 according to the present embodiment adjusts the long bolts 30 on both sides so that the plywood 50 on both sides is positioned to be smaller than the inner diameter of the manhole, and puts it in the manhole, thereby rotating the knuckle 20 to rotate the plywood on both sides. It is in close contact with the inner wall of the manhole of 50.

5 is a view for explaining a cross section of the manhole repaired by applying a manhole repair method and a support therefor according to a preferred embodiment of the present invention.

3 and 5, the manhole repair method according to a preferred embodiment of the present invention is a work section of the cover of the manhole with a step or a portion around the manhole (fixed ground 200, see FIG. 1) After determining the cutting line, the cutting line is cut to a certain depth with a concrete cutter, and the fixed ground 200 around the manhole is excavated to the working range with a hydraulic breaker or an air breaker, and the resulting ascon or concrete waste is removed and the foreign substances are removed. Clean so that there is no (S500). And after looking at the lid 100 and the support frame 110 of the existing manhole, check whether the recycling. Anchor that meets the standard (diameter) of the fixing hole 114 in the flange 112 of the support frame {110, which is to be recycled existing support frame} to be installed on the existing manhole wall 130 {concrete or concrete slab} Drilling the insertion hole 132 to use a bolt or chemical anchor as the locking bar (60) (S510), and installs the locking bar (60). Then, the support frame 110 is the washer 72 after the level supporting member 70 made of the nut 74 and the nut 74 coupled to the locking bar 60 (anchor bolt) fixed thereto. Coupling so as to be placed on the upper (S520), using the upper and lower nuts 74, 76 to adjust the support frame 110 to be horizontal to the road surface (surrounded ground (C)) of the existing road to tighten firmly.

At this time, the manhole repair method according to the present embodiment applies a level supporting member 70 specially configured to adjust the height of the support frame 110. In this embodiment, the locking bar 60 is configured by applying a long bolt, and the level supporting member 70 and the supporting frame fixing member 80 to be described later are paired to the locking bar 60 made of long bolts. Nuts 74, 76, 84, and 86 of the support frame 110, respectively, by applying a double nut to lock the position of the support frame 110 is fixed, the nut located on the support frame 110 side The washers 72 and 82 are fixed to the 74 and 84 so as to support the position of the support frame 110 by tightening the nuts 72 and 82. Of course, in the manhole repair method according to the present invention, the specific technical configuration of the level supporting member 70 and the support frame fixing member 80 determines the height of the support frame 110 by applying another shape in addition to the proposed method of this embodiment. It may be to fix the support frame 110.

When the height of the support frame 110 is determined in this way, after confirming the specifications in the manhole, the coated plywood 50 is inserted into the manhole of the support 10 installed on the left and right to be firmly fixed so as not to be pushed during the construction process, and the support frame ( 110) (S530). Then, by filling the epoxy or quickened non-concrete concrete up to the height of the washer 72 of the level supporting member 70 coupled to the locking bar 60, the fixed ground is first poured (A), and the support frame 110 is again After mounting, the support frame fixing member 80 including the washers 82 and the nuts 84 and 86 is coupled to the locking bar 60 to be firmly tightened to fix the support frame 110 (S540). After removing dust or foreign substances from the construction site, fill the finishing material and firmly squeeze it to make it level with the surrounding ground (C, the existing road surface). 10) is removed and the vehicle is closed by closing the lid 100.

As described above, the manhole repair method and the support for the same according to a preferred embodiment of the present invention have been shown in accordance with the above description and drawings, but this is only an example and within the scope not departing from the technical spirit of the present invention. It will be understood by those skilled in the art that various changes and modifications are possible in the art.

According to the rectangular and transverse manhole repair method according to the present invention and the support therefor, the manhole repair method according to the present invention reinforces the support structure of the support frame by using the locking bar, and the surrounding ground and the support frame by using the level support member. By making the height more precise, the maintenance of the fixed ground around the manhole, which frequently causes breakage, can be compensated for, thereby reducing maintenance in the long term. In addition, the support for manhole repair is made through a relatively simple configuration to effectively cast the fixed ground, and to support the manhole inner wall using plywood to facilitate the repair of the manhole that is continuously installed.

Claims (5)

In the rectangular and transverse manhole repair method for repairing the manhole exposed to the road surface using a round or square lid and support frame, Removing the fixed ground of the support frame to be repaired and removing the support frame and the lid to be repaired; Forming a vertical insertion hole corresponding to the fixing hole formed in the flange of the support frame to be installed at a predetermined depth on the manhole wall; Locking bars are respectively installed in the insertion holes, and the level supporting members are coupled to the respective locking bars, and then the support frame is placed so that the locking bars are inserted into fixing holes formed in the flanges of the supporting frames, respectively, to the level supporting members. Allowing the support frame to be supported by the support frame; Adjusting each level supporting member so that the support frame is horizontal with the surrounding ground, and then installing a support in the manhole and removing the support frame; First placing the fixed ground up to the height of the level supporting member, re-engaging the supporting frame, and then fixing the supporting frame by coupling the supporting frame fixing member to the locking bar, respectively; And secondly placing and fixing the fixed ground so as to be horizontal with the surrounding ground, and removing the supports installed in the manhole. The method of claim 1, The locking bar is a long bolt with a screw formed on the outer circumferential surface, and each of the level supporting member and the support frame fixing member has a pair of nuts screwed to the long bolt, so as to lock with double nuts above and below the support frame, respectively. Square and transverse manhole repair method characterized in that the position of the support frame is fixed. The method of claim 2, The level supporting member and the support frame fixing member each have a washer positioned and coupled between the nut and the support frame, such that the washer is fixedly formed with the nut located on the support frame side, thereby supporting the support by tightening the nut. Square and transverse manhole repair method characterized in that to support the position of the frame. In the support for manhole repair that is installed in the manhole to pour the fixed ground in the repair of the manhole exposed to the upper surface of the road using a round or square lid and support frame, A knuckle formed with a pair of screw holes penetrating parallel to a central axis at both ends; A pair of long bolts each coupled to the screw hole so as to be rotatable; A pair of press plates coupled with a nut on which the long bolts are rotatably coupled to the outside thereof in parallel axes; And a plywood coupled to each of the pressing plates to be in close contact with an inner wall of the manhole to form a boundary of the fixed ground. The method of claim 4, wherein The plywood is a support for manhole repair, characterized in that the surface in close contact with the inner wall of the manhole is coated with paint.

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