KR100374540B1 - Method of Manhole Repair and Used the Method of Equipment - Google Patents

Abstract

The present invention relates to a manhole repair method for replacing a manhole subsided or damaged from the road surface,

A preparatory step of installing a rockfall prevention base to open the manhole cover and to support the inner circumference of the manhole hole to repair the manhole provided on the road;

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 a super speed mortar at an appropriate level between the installed manhole and the road surface;

A second pour step of removing the triangular horizontal adjuster and the formwork after the primary mortar is cured, and injecting the superscopy mortar to a level slightly lower than the road surface;

After the pouring of the cemented carbide mortar is completed, a manhole cover is covered, and a finishing step is completed by laying a finishing material on top of the cemented carbide mortar.

Description

Manhole Repair and Used the Method of Equipment

The present invention relates to a manhole repair method that is provided on the road and carried out to repair the manhole that is submerged than the road surface by paving the weight of the vehicle or repeatedly asphalt, and more particularly, the manhole repair work by personnel Excavation work is carried out by manhole repair lifter in the conventional way, and no scattering dust is generated, and maintenance work can be processed in a short time by easy level adjustment of tripod, saving construction cost and traffic jam The manhole repair method and the apparatus used in the method.

1 is a cross-sectional view showing a manhole in a subsided state than the road surface as described above, the manhole as shown affects the safety of the vehicle driving on the road, thereby replacing the manhole as shown Many methods have been used for manhole repair work.

For example, after cutting around the manhole with an asphalt cutter, the inside of the cutting line is broken by a breaker, that is, a rock drill, to break the asphalt around the manhole, and the manhole is provided with a manpower or chain block. There is a way to pull it out with a simple lifter.

However, in the above work, when two or more workers break the asphalt with the breaker, tremendous noise and scattering dust are generated, and civil complaints are generated by noise and dust pollution when repairing the manhole provided on a general residential road. There was a problem.

In addition, on a typical city road, the work for dismantling a manhole by a chain block as described above generally depends on the manual work of a construction worker, and thus requires a long time for repair work. Therefore, when one road is blocked, extreme traffic jams may occur. There was a problem.

In addition, due to the nature of the work that depends on the workforce, there is a problem that the productivity of the worker is reduced due to increased fatigue.

The present invention has been made to solve the problems as described above, the object of the present invention is to avoid the generation of noise and scattering dust in the process of removing the manhole, by carrying out the excavation operation gently by the synergism of the hydraulic cylinder, It is to minimize traffic jams by simply and efficiently performing maintenance work on the road without harming the residents of ordinary residential areas.

In addition, another object of the present invention is to minimize the construction cost because it does not depend on the manpower, it is possible to construct with a small number of people, but to improve the productivity.

1 is a cross-sectional view showing a manhole before renovation is lowered than the road surface,

Figure 2 is a block diagram showing a schematic process of the manhole repair method of the present invention,

3 is a perspective view illustrating in detail the configuration of the manhole repair lifter of the present invention;

4 and 5 are cross-sectional views taken along the line “A”-“A” of FIG. 3, and are sectional views illustrating the operation of the manhole repair lifter of the present invention.

6 is a reference diagram showing a road surface excavation is completed by the present invention lifter,

7 a) and b) are a perspective view and a plan view for explaining the configuration of the triangular leveler and the formwork of the present invention,

8 and 9 are cross-sectional views showing the first and second mortar pouring stages around the manhole where the installation is completed at the same level as the road surface by the triangular horizontal adjusting bar of the present invention.

(A) of FIG. 10 shows the appearance of a manhole after repair work is completed, and b) is a reference diagram showing the cross section of the line "B"-"B".

* Explanation of symbols for the main parts of the drawings

1.Manhole repair method 1a; Manhole

1b; manhole 10; preparation step

20; separation step 30; manhole installation step

40,50; 1, the second manhole installation step 60; the closing step

100; manhole repair lifter 110; lifter base

111; hinge 112; hinge bolt

120; upper frame 121; cross beam

122; reinforcement plate 123; eye bolt

130; first hydraulic cylinder 140; hook

141; adjusting rod 142; adjusting nut

143; washer 150; second hydraulic cylinder

200; triangular leveler 210; ring

220; Leg 230; Reinforcing Flange

300; formwork 310; auxiliary formwork

320; turn buckle 400; superscopy mortar

500; finish

The present invention relates to a manhole repair method to replace the manhole sinking or damaged than the road surface,

A preparatory step of installing a rockfall prevention base to open the manhole cover and to support the inner circumference of the manhole hole to repair the manhole provided on the road;

A separation step of installing a demolition lifter on the upper peripheral edge of the manhole and adjusting a control rod to seat a hook between the manhole and concrete, 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 a super speed mortar at an appropriate level between the installed manhole and the road surface;

A second pouring step of removing the tripod and the formwork after the primary mortar is cured and injecting the superscopy mortar to a level slightly lower than the road surface;

After the pouring of the cemented carbide mortar is completed, a manhole cover is covered, and a finishing step is completed by laying a finishing material on top of the cemented carbide mortar.

In addition, the ring is mounted to one end collected in the center so that the manhole is provided in the upper portion of the road surface removed by the manhole repair lifter and mounted to withstand the load of the manhole; A leg formed in three directions at predetermined equal intervals on an inner circumference of the ring to match a level between an upper surface of the manhole and a road surface; It is mounted on the side of the leg is composed of a triangular horizontal adjustment for the manhole repair including a reinforcing flange is mounted to the side of the manhole having a level coinciding with the lower side of the leg.

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

Figure 2 is a block diagram showing a schematic process of the manhole repair method of the present invention, Figure 3 is a perspective view showing in detail the configuration of the manhole repair lifter of the present invention, Figures 4 and 5 are 3 "A A cross-sectional view taken along the line "-" A ", which is a cross-sectional view for explaining the operation of the manhole repair lifter of the present invention, Figure 6 is a reference diagram showing the road surface completed excavation by the lifter of the present invention, 7A and 7B are a perspective view and a plan view for explaining the configuration of the tripod and formwork of the present invention, and FIGS. 8 and 9 are close to the periphery of the manhole installed at the same level as the road surface by the tripod of the present invention. 10 is a cross-sectional view showing the first and second mortar pouring stages. FIG. 10A) shows the appearance of the finished manhole after the completion of the repair work, and b) the cross section of the lines “B”-“B”. See also.

The manhole repair method 1 of the present invention will be briefly described with reference to the block diagram shown in FIG.

The manhole repair method (1) of the present invention is the preparation step (10) and the preparation step (10), which is completed by first removing the manhole cover, the installation of the rockfall prevention base 11 in the manhole (1a) and the preparation step (10) After installing the manhole repair lifter 100 (hereinafter referred to as a "lifter") on the upper part of the manhole (1a) from which the lid is removed, a separation step (20) for removing the manhole (1a) and the separation step ( 20) Cleans the manhole (1a) removed from the manhole (1a) to be installed in a clean atmosphere, the leveling tripod 200 for level setting (hereinafter referred to as "tripod") and the mortar mold ( After the 300 is installed, a manhole installation step 30 is performed to match the level with the road surface and the position of the manhole 1a.

In addition, by pouring the cemented carbide mortar (400) of the present invention around the manhole (1a) is completed in the process, the primary pour step (40) to make a solid casting on the road surface dug in the separation step 20 After completion, by pouring the mortar at the same level as the road surface on the top of the first placing is completed, the secondary placing step 50 is also completed.

Finally, the manhole cover is closed, and in the finishing step 60 of the present invention, the finishing material 500 is applied to the upper portion of the superhard mirror mortar 400 in which the secondary casting is completed, and the finishing material 500 is applied to increase the strength of the road surface. By increasing, the repair work of the present invention is completed.

Hereinafter, each process will be described in detail with reference to the accompanying drawings.

Asphalt and rubble in the separation step 20, which will be described later, by first installing the manhole cover and installing a rockfall prevention stand 11 (hereinafter referred to as a "base") inside the manhole 1a. Finishing the work of the preparation step 10 to prevent debris, such as back falling to the lower side of the manhole, the pedestal 11 is the inner side of the pedestal ring (Ring) is formed a somewhat larger outer diameter than the manhole (1a) It is provided with a bag of general sacks, and is provided on the inner circumference of the manhole (1b) formed of concrete. That is, it is supported by the manhole hole (1b) provided with the manhole by the property to maintain the state opened by the elastic force of the ring.

As described above, a manhole repair lifter 100 (hereinafter referred to as a "lifter") is installed around the manhole 1a that has been primarily prepared to remove the manhole 1a that has sunk from the road surface. Step 20 begins, and the method is described in detail.

As shown in FIG. 3, when the configuration of the lifter 100 of the present invention is looked at, the lifter 100 is basically provided at the bottom thereof and has a lifter base 110 having a shape of a circular ring to be supported on the ground. ) And a lower end of the first hydraulic cylinder 130 (hereinafter referred to as "first cylinder") are attached to the upper outer periphery of the lifter base 110 at predetermined equal intervals. 130) and a description of a conventional hydraulic unit (Unit) to operate the second cylinder 150 will be omitted.)

Meanwhile, three upper ends of the first cylinder 130 are mounted on the lower outer periphery of the upper frame 120 at predetermined equal intervals, so that the lifter base 110 and the upper frame 120 are connected to the first cylinder 130. ) Is provided so as to face up and down.

The overall appearance of the upper frame 120 is similar to the above-mentioned lifter base 110, but the outer diameter is formed small, divided into equal intervals inward in the form of a circular ring, the cross beam 121 is mounted in parallel (竝列) have.

The cross beam 121 is to be symmetrically mounted "c" shaped steel as shown in cross-section shown in detail on one side to be provided with an adjusting rod 141 therebetween.

Meanwhile, an upper portion of the adjusting rod 141 is provided with an adjusting nut 142 having a screw formed therein, and a lower portion of the adjusting nut 142 prevents the adjusting nut 142 from being separated between the cross beams 121. The washer 143 is provided to be free to rotate the adjustment nut 142 is configured to prevent the departure.

The adjustment rod 141 is freely moved between the cross beams 121 to move inward and outward to move the adjustment rod 141 according to the inner diameter of the manhole 1a to meet the specifications. In other words, the standard φ648 or φ766, which is the standard of the conventional manhole 1a, can be moved inside and outside and provided as described above, thus providing compatibility.

In addition, the cross beam 121 collected at the center of the upper frame 120 is to install the reinforcement plate 122 to the upper, lower both sides to maintain the strength.

In addition, the center of the reinforcing plate 122 is provided with an eye bolt 123 to be coupled with a screw to facilitate the loading and unloading by a forklift or a crane, the eye bolt 123 is screwed to the removable coupling or by welding The above method may be selected by the user's choice.

On the other hand, each of the lower end of the adjustment rod 141 is provided with a hook (Hook) 140 of the present invention, on the outside to facilitate insertion between the manhole (1a) and the manhole hole (口) (b) formed of concrete It is sharply formed. That is, the sharp tip of the hook 140 is manhole (1a) and the manhole hole under the pressure of the second hydraulic cylinder 150 (hereinafter referred to as "second cylinder") coupled to the inside of the hook 140 By penetrating between (1b) it is to support the lower side of the manhole (1a) to facilitate the dismantling.

The second cylinder 150 is made of a special, three-pronged so as to be coupled to the rear end of the hook 140 mounted on the lower end of the control rod 141 provided at a predetermined equal intervals as shown It has a divided form.

In addition, although not shown, the upper frame 120 may be formed to be somewhat smaller than the outer diameter of the lifter base 110. For this reason, as shown in the figure, the upper and lower ends of the first cylinder 130 fixed by the hinge bolts 112 are driven inward as they move upwards to prevent them from flowing left and right by the hinge points. In order to remove the manhole (1a) to ensure that when the upper frame 120 is raised to be stably lifted.

As shown in Fig. 4 and 5, after setting the level so that the sharp tip of the hook 140 is provided between the manhole (1a) and the manhole (1b) by adjusting with the adjustment nut 142 described above, As the second cylinder 150 is advanced, the hook 140 provided at the lower end of the adjusting rod 141 is inserted into the lower end of the manhole 1a as shown to stably support the lower side of the manhole 1a. .

In addition, when the first cylinder 130 of the present invention is operated, the upper frame 120 in which the adjusting rod 141 and the hook 140 and the second cylinder 150 are integrated is raised and the hook 140 Manhole (1a) hanging on is to be pulled up to be removed.

In addition, as described above, by removing foreign matters such as rubble, which has fallen to the excavation site, to maintain a clean state, and then removing the pedestal 11 installed in the above-described preparation step 10, the separation step 20 Is done.

6 is a reference diagram illustrating a road surface state after the separation step 20 as described above is completed, and the road surface forms a neat cut surface identical to the shape of the lifter base 110 described above.

7 to 9, the tripod 200 and the formwork 300 are provided on the upper side and the inner side of the manhole 1a to be newly installed so as to facilitate installation. Tripod 200 shown in the) is provided with a ring 210 formed in the center of the circular "a" angle in the center, legs 220 (Leg) at predetermined equal intervals on the inner circumference of the ring 210 Is equipped.

As shown, the number of the legs 220 is shown in three directions at predetermined equal intervals, because the support point is formed in three directions can be supported most stably.

In addition, the side of the leg 220 is formed in a circular shape is provided with a reinforcing flange 230 to be provided on one side of the manhole (1a), the lower side of the reinforcing flange 230 tightening bolts at predetermined equal intervals. 231 is mounted.

Each leg 220 of the tripod 200 is supported on the road surface, the lower side of the reinforcing flange 230 provided on the side of the manhole (1a) in close contact with the lower side of the leg 220 matching the level of the road surface The manhole (1a) is to maintain the suspended state by the provided bolt 231.

7B) shows a plane of the formwork 300 to be installed into the manhole 1a to be newly installed.

The formwork 300 is formed by forming a conventional metal plate in a circular shape wrapped around the outer circumference with an auxiliary formwork 310 having a sponge or elasticity to the outside and provided on the inner circumference of the manhole 1a and then turn buckle as shown ( When the die 300 is opened by rotating 320, the auxiliary die 310 having the elasticity prevents the space ES between the manhole 1a and the manhole hole 1b in which the setting is completed. It is to prevent the leakage of the cemented carbide mortar 400 of the present invention to be poured in the second pouring step (40, 50).

8 and 9, the outer circumference of the formwork 300 is made smaller than the inner diameter of the manhole 1a by the inner circumference of the manhole 1a that is held by the tripod 200. To facilitate the insertion, when the insertion is completed by the inner circumference is rotated to turn the turn buckle 320 is mounted on the inside of the formwork 300 to open the formwork 300 as shown in the manhole (1a) and the manhole ( The manhole installation step 30 is completed by blocking the space ES between 1b).

As shown in FIG. 8, when the manhole installation step 30 is completed, an appropriate level is injected into the periphery of the manhole 1a of the superhard mirror mortar 400 (hereinafter referred to as “mortar”) of the present invention. .

At this time, after completing the first pouring as shown, evenly in each corner by the vibration of the vibrator (Viblator) so that the mortar (400) is to be poured evenly so that the casting is firm.

At this time, it should be noted that since the above-described mortar 400 begins to solidify, the starting time for hardening is only about 10 to 12 minutes.

In addition, when the primary mortar (400) is hardened, by dismantling the tripod 200 and the formwork 300 described above, the primary pouring step 40 is completed.

As shown in FIG. 8, in the present invention, the reason for working by dividing the cemented carbide mortar 400 into primary and secondary parts is primarily on the unevenly dug as shown in the first case of mortar. In order to facilitate the following work by pouring the cemented carbide mortar (400) of the present invention and chopped so as to be uniformly poured in the early stage, and secondly, to facilitate the dismantling of the tripod 200 described above. It is for. That is, the non-shrink mortar of the present invention, which is poured to the lower side of the tripod 200, can be disassembled by the tripod 200 and the form 300 by the property of being hardened quickly as described above.

As described above, when the tripod 200 and the formwork 300 are dismantled, second pouring is performed on the upper part of the mortar in which the first pouring is completed, thereby forming a level of about 5 to 10 mm lower than that of the existing unexcavated asphalt road surface. It is desirable to. The reason for this is to give a clearance of the height of the present invention finishing material 500 will be described later, because the thickness of the finishing material 500 is to vary depending on the atmosphere around the manhole, the thickness is installed according to the site conditions This may be different.

In addition, the first and second pouring steps 40 and 50 are completed by the above-described process.

Subsequently, as shown in (a) and (b) of FIG. 10, the manhole cover is closed, and the manhole repair construction of the present invention is completed by applying the finishing material 500 of the present invention to the upper portion of the mortar 400. 1) is complete.

On the other hand, with reference to the finishing material 500 described above, the finishing material 500 is a high purity silica sand mixed with a curing agent in the ratio of 1: 1 to the epoxy (main epoxy), and dried on the mixed material The powder is mixed at a ratio of 1: 5 and widely applied to the boundary lines of the upper and existing asphalt where the primary and secondary mortar castings are completed, and has a waterproof effect to prevent water from penetrating into the boundary lines. In other words, the epoxy, the curing agent, and the silica sand are the ratios of 1: 1: 10.

In addition, the above-mentioned epoxy resin is provided with chemical resistance, salt water resistance, and water tightness peculiar to the material, and also has characteristics of preventing waterproofing and corrosion around the manhole.

In addition, the cemented carbide mortar (400) and the conventional asphalt as described above are to be separated from each other by the adhesive force of the finishing material 500 of the present invention because there is a property to be separated from each other physically different properties.

In addition, by using epoxy resin having excellent physical strength and properties such as tensile strength, compressive strength, compressive elastic strength, tensile shear strength, and silica sand having excellent friction characteristics, it has strong adhesiveness and frictional force. It is characterized by the fact that it does not separate from each other even under loads of numerous vehicles even in one day.

The present invention is not limited to the above-described specific preferred embodiment, and can be easily modified by anyone having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such modifications fall within the scope of the claims of the present invention.

According to the present invention, by minimizing the generation of noise and scattering dust in the process of removing the manhole, and by carrying out the excavation work smoothly by the synergism of the hydraulic cylinder, it is simple and efficient on the road without damaging the residents of the general residential area As a result, maintenance work is minimized.

In addition, since the overall renovation work does not depend on manpower, the construction cost can be minimized, and construction can be performed with a small number of people, but productivity is improved.

.

Claims (7)

A preparatory step of installing a rockfall prevention base to open the manhole cover and to be supported by the inner circumference of the manhole hole in order to repair the manhole that is sunk than the road surface; A separation step of installing a demolition lifter on the upper peripheral edge of the manhole and adjusting a control rod to seat a hook between the manhole and concrete, and separating the manhole by operating the lifter; A manhole installation step of mounting a tripod to match the level of the road surface and the manhole, and then installing formwork on the inner circumference of the manhole to prevent leakage of mortar being poured; A first pouring step of inserting a super speed mortar at an appropriate level between the installed manhole and the road surface; A second pouring step of removing the tripod and the formwork after the primary mortar is cured and injecting the superscopy mortar to a level that matches the road surface; Covering the manhole cover after the pouring of the cemented carbide mortar is completed, the manhole repair method characterized in that the finishing step is completed by spraying the finishing material and silica sand on top of the cemented carbide mortar. The method of claim 1, The mortar pouring step is a manhole repair method, characterized in that to improve the compressive strength around the manhole by pouring mortar superhard mortar by primary and secondary. The method of claim 1, The finishing step is a manhole repair characterized in that the finishing material to improve the adhesion and compressive strength of asphalt and mortar having different physical strength by mixing epoxy and hardener and dried silica sand 1: 1: 10 as the main material. Method. delete A ring mounted at one end collected at a center thereof so as to be provided on an upper part of the road surface where the manhole is removed by a manhole repair lifter, and mounted to withstand the load of the manhole; A leg formed in three directions at predetermined equal intervals on an inner circumference of the ring to match a level between an upper surface of the manhole and a road surface; Manhole repair tripod, characterized in that the reinforcing flange is mounted to the side of the leg is supported by a tightening bolt to be supported on the side of the manhole having a level corresponding to the lower side of the leg. delete delete