KR20110110931A - Manhole mending device and manhole mending method for environmental-friendly construction - Google Patents

Manhole mending device and manhole mending method for environmental-friendly construction Download PDF

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Publication number
KR20110110931A
KR20110110931A KR1020100030235A KR20100030235A KR20110110931A KR 20110110931 A KR20110110931 A KR 20110110931A KR 1020100030235 A KR1020100030235 A KR 1020100030235A KR 20100030235 A KR20100030235 A KR 20100030235A KR 20110110931 A KR20110110931 A KR 20110110931A
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KR
South Korea
Prior art keywords
manhole
cover
road
frame
temperature sensor
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KR1020100030235A
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Korean (ko)
Inventor
박민혜
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박민혜
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Priority to KR1020100030235A priority Critical patent/KR20110110931A/en
Publication of KR20110110931A publication Critical patent/KR20110110931A/en

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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
    • 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
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1427—Locking devices
    • 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
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1436—Covers for manholes or the like; Frames for covers with overflow or explosion control means, e.g. check or relief valves
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2220/00—Temporary installations or constructions
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/10—Miscellaneous comprising sensor means

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Road Repair (AREA)
  • Road Paving Structures (AREA)

Abstract

The present invention relates to a road manhole repair device and a repair method with improved eco-friendly construction, after cutting the road pavement around the manhole cover support to be repaired, before applying the road repair material around the top of the manhole frame, covering the manhole inside the manhole A manhole temporary cover which prevents gas from being discharged to the outside and protrudes a plurality of support protrusions so as to be supported around an upper end of the manhole frame; A temperature sensor inserted into the support protrusions of the manhole temporary cover and measuring one surface of the upper surface of the manhole when the upper surface of the manhole is heated by contacting the upper surface of the manhole frame; A temperature sensor cover installed to open and close at upper surfaces of the support protrusions to protect the temperature sensor and the sensor lines; It is installed on the upper surface of the manhole frame temporary cover and is connected to a temperature sensor is composed of a display unit for displaying the measured temperature.
Therefore, since the manhole frame is heated to maintain 60 to 100 before the road repair material is applied, the permeability of the manhole frame is improved, thereby increasing the bonding force between the road repair material and the manhole frame, and the road repair material does not lift from the manhole frame even after a long period of time. The road repair material is applied to the heated manhole frame, thereby shortening the hardening time of the road repair material.

Description

Manhole mending device and manhole mending method for environmental-friendly construction

The present invention relates to a road manhole repair apparatus and its repair method improved environmentally friendly construction, more specifically, because the hardening time of the road repair material is shortened the repair time of the manhole is shortened, the control time of the vehicle is shortened, safety during manhole repair work The present invention relates to an improved road manhole repair device and its repair method, which are environmentally friendly.

In general, various facilities such as water pipes, sewer pipes, electric power cables, and communication cables are buried underground, and these various facilities must be repaired from time to time as necessary. Therefore, manholes are constructed at regular intervals in the basement of the road for maintenance of various facilities.

After the road is constructed, since the ground subsides due to the repetitive load applied according to the driving of the vehicle, the road surface is cracked or broken. Therefore, the overlaying operation (overlay construction) is performed at a period of approximately 5 years, whereby an overlay layer is formed on the road surface layer, so that the top of the manhole cover base is lower than the surface of the overlay layer. Since the road is dented, the manhole repair work is performed to adjust the height of the manhole to match the overlay layer on the road floor before the road layer is overlaid.

Referring to the process of performing the manhole repair and impression construction, the main surface of the sinking manhole cover base is excavated and removed using equipment such as a cutting machine or an excavator. Subsequently, the road repair material is filled and cured on the floor on which the manhole cover pedestal is mounted so that the top height of the manhole cover pedestal is equal to the height of the road surface layer. Then, the manhole cover base is placed on the road repair material, and the mandrel repair work is completed by filling and hardening the finishing compact on the road repair material around the manhole cover support.

Here, the road repair material uses a concrete material made of a mixture of cement, aggregate, and water, and the finishing compactor uses a medium temperature asphalt concrete or a high temperature asphalt concrete.

However, this conventional manhole repair method has some problems.

First, since the road repair material is simply applied to the upper surface of the manhole frame in the related art, the bonding force between the manhole frame and the road repair material is lowered, thereby accelerating and cracking the road repair material from the manhole frame.

In addition, the road repair material used in the manhole repair method is made of a concrete material composed of a mixture of cement, aggregate, and water, and thus, a relatively long time must be elapsed until it is cured after laying it, thereby increasing the control time of the vehicle. There is a problem, and when the vehicle is passed in a state where the conventional road repair material is not properly hardened, a problem such as damage to the road is generated while the installed finishing compaction is turned off.

An object of the present invention for achieving the above object is to provide a road manhole repair device and a repair method for improving the environmentally friendly construction to increase the binding force of the manhole frame and the road repair material.

Another object of the present invention is to provide a road manhole repair apparatus and a method for repairing the environment-friendly construction to reduce the curing time of the road repair material.

The manhole repair apparatus of the present invention for achieving the above object, after cutting the road pavement around the manhole cover support to be repaired, before applying the road repair material around the top of the manhole frame, the gas inside the manhole by covering the manhole A manhole temporary cover which blocks the discharge to the outside and protrudes a plurality of support protrusions so as to be supported around the upper end of the manhole frame; A temperature sensor inserted into the support protrusions of the manhole temporary cover and being contacted with the upper surface of the manhole frame to measure the upper surface temperature when the upper surface of the manhole frame is heated; A temperature sensor cover installed to open and close at upper surfaces of the support protrusions to protect the temperature sensor and the sensor lines; And a display unit installed on the upper surface of the manhole frame temporary cover and connected to a temperature sensor to display the measured temperature.

The manhole repair apparatus of the present invention for achieving the same object as described above, after cutting the road pavement around the manhole cover support to be repaired, before applying the road repair material around the top of the manhole frame, covering the manhole to cover the gas inside the manhole Is prevented from being discharged to the outside, a plurality of support protrusions protrude so as to be supported around the top of the manhole frame, the coupling grooves are formed in the lower portion of the support protrusion, the coupling grooves and the space in the upper center is connected A manhole temporary cover in which sensor line grooves are formed; A temperature sensor inserted into the coupling grooves of the support protrusions and measuring one surface of the upper surface of the manhole frame when one surface is in contact with the upper surface of the manhole frame; And a display unit installed on the upper surface of the manhole frame temporary cover and connected to the temperature sensor by sensor lines embedded in the sensor line grooves to display the measured temperature.

The manhole repair apparatus of the present invention for achieving the same object as described above, after cutting the road pavement around the manhole cover support to be repaired, before applying the road repair material around the top of the manhole frame, covering the manhole to cover the gas inside the manhole Manhole temporary cover that blocks the discharge to the outside, the tapered surface is formed on the lower periphery to be supported around the top of the inner circumferential surface of the manhole frame; A lower plate protruding from the center to be coupled to the lower portion of the manhole temporary cover; A temperature sensor installed to slide on both sides of the upper surface of the lower plate and measuring a temperature of the manhole frame heated by being in close contact with the inner circumferential surface of the manhole frame; A spring installed at an upper surface of the lower plate and supported at both ends by a coupling protrusion and a temperature sensor to elastically support the temperature sensor toward an inner circumferential surface of the manhole frame; And a display unit installed on the upper surface of the manhole frame temporary cover and connected to a temperature sensor to display the measured temperature.

The manhole repair apparatus of the present invention for achieving the same object as described above, after cutting the road pavement around the manhole cover support to be repaired, before applying the road repair material around the top of the manhole frame, covering the manhole to cover the gas inside the manhole Manhole temporary cover that blocks the discharge to the outside, the tapered surface is formed on the lower periphery to be supported around the top of the inner circumferential surface of the manhole frame; A temperature sensor that is in close contact with the bottom surface of the manhole frame and measures a temperature of the heated manhole frame; A bolt having a lower bolt head supported by the temperature sensor and having an upper end protruding upward through the manhole temporary cover; A nut fastened to the top of the bolt to support the bolt to the manhole temporary cover and to pull the bolt upwards so that the temperature sensor is in close contact with the lower surface of the manhole frame; And a display unit installed on the upper surface of the manhole frame temporary cover and connected to a temperature sensor to display the measured temperature.

The manhole repair apparatus of the present invention for achieving the same object as described above, after cutting the road pavement around the manhole cover bearing to be repaired, before applying the road repair material, covering the manhole to discharge the gas inside the manhole to the outside A manhole temporary cover coupled to an inner circumferential surface of the manhole so as to be blocked, and having an inclined installation hole connected to an outer circumferential surface from an upper surface thereof; A manhole frame formed with a fixing groove inclined from the inner circumferential surface thereof inward to form the same line as the installation hole of the manhole temporary cover; A temperature sensor rod one side of which penetrates the installation hole of the manhole temporary cover and is coupled to the fixing groove of the manhole frame to fix the manhole temporary cover to the manhole frame and to measure the temperature of the heated manhole frame; And a display unit installed on the upper surface of the manhole frame temporary cover and connected to the temperature sensor rod to display the measured temperature.

The manhole repair method of the present invention for achieving the same object as described above, after cutting the road pavement around the manhole cover support to be repaired, before applying the road repair material around the top of the manhole frame, covering the manhole to cover the gas inside the manhole Is installed on the upper surface of the manhole temporary cover and the temperature sensor for measuring the temperature of the manhole frame heated in contact with the manhole frame, and the temperature measured by being connected to the temperature sensor Manhole repair method using a manhole repair device consisting of a display unit for display, a repair material by mixing 70 to 80 parts by weight of silica sand, 5 to 20 parts by weight of polyfunctional polyether mixture and 5 to 15 parts by weight of special MDI NCO (28% MDI) Road repair materials to prepare road repair materials made by mixing 75 ~ 85 parts by weight of aggregate composed of silica sand of 2mm or less with 15 ~ 25 parts of repair materials. Step; A road pavement cutting step of cutting a road pavement around a manhole cover bearing to be repaired when the road repairing material is prepared; A road repair material pretreatment installation step of sealing a manhole by seating a manhole temporary cover on an upper part of the manhole frame after the road pavement cutting step; Manhole frame heating step of heating the upper surface of the manhole frame to maintain the manhole 60 to 100 when applying the road repair material by heating the upper surface of the manhole frame exposed to the top after the pre-treatment device installation step; A road repair material laying step of installing road repair material prepared around the top of the manhole frame when the manhole frame is heated; Road repair material compacting step of compacting around the upper surface of the road repair material when the road repair material is laid; A manhole cover support seating step of seating a manhole cover support on the installed road repair material when the compaction of the road repair material is completed; When the manhole cover support is seated, the installation of the finishing compaction material around the installation of the finishing compaction material for fixing the manhole cover support; characterized in that consisting of.

In the present invention as described above, since the road repair material is installed after the manhole frame is sufficiently heated, the permeability of the manhole frame is improved, and the bonding force between the road repair material and the manhole frame is increased, and the road repair material does not lift from the manhole frame even after a long period of time. As a result, eco-friendly construction properties are improved to prevent cracking of pavement and road repair materials.

The manhole frame is heated to maintain 60-100 before the road repair is applied. Therefore, when the road repair material is applied to the heated manhole frame, the curing time of the road repair material is shortened by that amount. Therefore, the road repair material is cured relatively quickly after the manhole repair work, so the repair time is shortened, thereby improving the construction time because the control time of the vehicle is shortened.

Since the present invention seals the manhole with the manhole temporary cover before heating the manhole frame, safety accidents due to the gas emitted from the manhole can be prevented in advance, thereby improving the eco-friendly construction.

The upper part of the temperature sensor and the sensor line is provided so that the cover is simply opened and closed around the hinge. Therefore, when attaching or detaching the temperature sensor to the coupling hole of the manhole temporary cover, work with the cover open, and when heating the manhole frame, work with the cover closed. Therefore, the easy opening and closing of the cover does not interfere with the detachment of the temperature sensor, and the main parts are protected from the flame, thereby improving eco-friendly construction.

The temperature sensor of the present invention is installed in the lower part of the manhole temporary cover and its sensor wires are embedded in the sensor wire grooves of the manhole temporary cover. Therefore, since the temperature sensor and sensor wires are not exposed to the outside in the state in which the manhole temporary cover is installed in the manhole frame, the workability is improved because the manhole frame is protected from heating and external shocks.

The lower portion of the manhole temporary cover is formed with a tapered surface to be supported on the upper end of the inner circumferential surface of the manhole frame. When the manhole temporary cover is covered on the top of the manhole, a portion of the tapered surface is supported while being seated around the top of the inner circumferential surface of the manhole frame. Therefore, even if the diameter of the manhole is different or the outer diameter of the manhole temporary cover does not match the diameter of the manhole, the manhole is sealed by the manhole temporary cover if the diameter of the manhole is within the range between the minimum and maximum diameter of the tapered surface. The compatibility of the manhole temporary cover is improved accordingly, improving the workability.

In addition, the manhole temporary cover is supported at the edge of the upper end of the inner circumferential surface of the manhole, rather than the tapered surface thereof is in contact with the upper surface of the manhole frame. Therefore, the entire upper surface of the manhole frame is not covered by the manhole temporary cover and is exposed to the outside as it is. Therefore, the upper surface of the manhole frame is heated without the part covered by the manhole temporary cover, so that the heating speed is so fast, and the entire upper surface of the manhole temporary cover is uniformly heated to improve the eco-friendly construction.

The temperature sensor of the present invention is in close contact with the lower surface of the manhole frame and is coupled to the manhole temporary cover by bolts and nuts, and tightening the nut to close the manhole temporary cover and the temperature sensor to the upper and lower parts of the manhole frame. Therefore, the manhole temporary cover is fixed to the upper surface of the manhole frame by the temperature sensor, bolts, and nuts. Therefore, the manhole temporary cover can be reliably sealed even if the manhole temporary cover is not heavy. Therefore, the manhole temporary cover is easy to carry and install. The workability is improved.

The manhole temporary cover is formed with an inclined installation hole connected from the upper surface to the outer circumferential surface, and the manhole frame is formed with a fixing groove inclined inward from the inner circumferential surface so as to be in line with the installation hole of the manhole temporary cover. The temperature sensor rod is coupled to the installation hole of the temporary cover and the fixing groove of the manhole frame. Therefore, since the entire manhole temporary cover is inserted into the inner circumferential surface of the manhole frame, it does not cover the upper surface of the manhole frame, and the manhole temporary cover and the manhole frame are easily combined by the temperature sensor rod, thereby improving the workability.

1 to 3 is a schematic perspective view, a plan view, a partially enlarged cross-sectional view showing a manhole repair apparatus of the present invention
4A to 4F are schematic cross-sectional views sequentially showing a state of repairing a manhole using the manhole repair apparatus of the present invention.
Figure 5 is a schematic cross-sectional view showing another embodiment of the manhole repair apparatus
Figures 6a and 6b is a schematic cross-sectional view and a partial plan view showing another embodiment of the manhole repair apparatus
7 and 8 are schematic cross-sectional views showing still another embodiment of the manhole repair apparatus
9 is a flow chart showing a manhole repair method of the present invention

Specific features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.

1 to 3 is a schematic perspective view, a plan view, a partially enlarged cross-sectional view showing a manhole repair apparatus of the present invention. The manhole repair apparatus of the present invention includes a manhole temporary cover 10, a temperature sensor 20, a temperature sensor cover 30, and a display unit 40.

The manhole temporary cover 10 cuts the road pavement 3 around the manhole cover base 4 to be repaired and before applying the road repair material 5 around the top of the manhole frame 1, the manhole 2. ) And serves to block the gas inside the manhole 2 from being discharged to the outside.

The manhole temporary cover 10 is provided with a plurality of support protrusions 11 protrude so as to be supported around the upper end of the manhole frame 1. In the central portion of the support protrusion 11, a coupling hole 12 is formed so that the temperature sensor 20 to be described later is coupled, and the end of the support protrusion 11 is hinged to engage the temperature sensor cover 30 to be described later. 31 is formed.

The temperature sensor 20 is inserted into the support protrusions 11 of the manhole temporary cover 10 and the upper surface of the manhole frame 1 is heated when one surface is in contact with the upper surface of the manhole frame 1. Measure the surface temperature.

The temperature sensor cover 30 is installed to be opened and closed on the upper surfaces of the support protrusions 11 to protect the temperature sensor 20 and the sensor lines 21. A hinge 31 is formed on the temperature sensor cover 30, and a hinge pin 32 is coupled to the hinge 13 of the support protrusion 11 and the hinge 31 of the temperature sensor cover 30.

The display unit 70 is installed on the upper surface of the manhole temporary cover 10 and connected to the temperature sensor 20 to display the measured temperature.

4A to 4F are schematic cross-sectional views sequentially showing a state of repairing a manhole using the manhole repair apparatus of the present invention, and FIG. 9 is a flowchart illustrating the manhole repair method with reference to the following.

First, it has a road repair material preparation step (S10). The road repair material (S10), 70 to 80 parts by weight of silica sand, 5 to 20 parts by weight of a polyfunctional polyether mixture and 5 to 15 parts by weight of a special MDI (MDI NCO 28%) to make a repair material, repair materials 15-25 It is made by mixing 75 to 85 parts by weight of the aggregate composed of silica sand of 2 mm or less in parts by weight.

The polyfunctional polyether mixture is composed of 40 to 50 parts by weight of a tetrafunctional copolymer, 40 to 50 parts by weight of a trifunctional copolymer, 1 to 10 parts by weight of a crosslinking agent composed of any one of ethylene glycol or an amine polymer, and an amine system. 0.1 to 10 parts by weight of the curing accelerator is mixed.

The above-described trifunctional and tetrafunctional copolymers are polymer polyols containing a high concentration of copolymers, and have good dispersibility and good compatibility with polyols for general flexible foams. The hardness can be arbitrarily adjusted by adjusting the mixing ratio. Therefore, such trifunctional and tetrafunctional polymers are cured in a short time by the crosslinking agent and the curing accelerator mixed in the above ratio.

Meanwhile, the special MDI (MDI: NCO 28%), which is mixed with the mortar formed by mixing the polyfunctional polyether mixture and the silica sand as described above, stands for Methylene Disphenyl Diisocyanate, which is widely used in daily life. It is a product used to make a widely used polyurethane (Polyurethane), when mixed with the above mortar when the construction of the road repair material (5) is completed, while rapidly curing to prevent cracking (Crack) of the road repair material (5).

This special MDI is a liquid product at room temperature and has excellent storage stability for easy handling. In addition, in the solvent free form, 4,4-disphenyl-methane diisocyanate monomer M-Di and their dimers, trimers, and tetramers or more oligomers are mixed. It has a viscosity of 170 cps (25).

When the road repair material 5 is prepared, the road paving body cutting step S20 of cutting the road paving body 3 around the manhole cover base 4 to be repaired as shown in FIGS. 4A and 4B.

After the road pavement cutting step S20, as shown in FIG. 4C, the mandrel cover 10 is seated on the upper part of the manhole frame 1 to seal the manhole 2.

In this installation step (S30), the temperature sensor 20 is installed in the coupling holes 12 of the manhole temporary cover 10 and the display unit 40 so that the measured temperature is displayed on the upper surface of the manhole temporary cover 10. ) Is installed.

When the support protrusions 11 of the manhole temporary cover 10 are supported on the upper surface of the manhole frame 1, the manhole is applied when the road repair material 5 is applied by heating the upper surface of the manhole frame 1 exposed upward. Mantle frame heating step (S40) for heating the upper surface of the manhole frame 1 to maintain the mold (1) 60 ~ 100.

Here, as for the heating temperature of the manhole frame 1, 60-100 are preferable.

When the heating temperature of the manhole frame 1 is less than 60, the hardening promoting effect of the road repair material 5 is reduced, and the road repair material 5 to be installed cannot penetrate the surface of the manhole frame 1 properly. When the heating temperature of the manhole frame 1 exceeds 100, the hardening promoting effect of the road repair material 5 and the bonding force with the manhole frame 1 do not greatly increase, while the energy consumption is greatly increased. Therefore, the heating temperature of the manhole frame 1 is preferably 60 to 100.

When the manhole frame 1 is heated, the temperature sensor 20 measures the temperature of the manhole frame 1, and the measured temperature is transmitted to the display unit 40 through the sensor line 21 and displayed.

Here, the temperature sensor 20 is installed on the support protrusions 11 formed in the radial direction, respectively. Therefore, since the temperature of the three parts of the manhole frame 1 is measured by the temperature sensor 20, it is possible to confirm whether the entire manhole frame 1 is evenly heated, and thus the manhole frame 1 can be optimally heated. .

When the manhole frame 1 is heated, it has a road repair material laying step S50 for laying the road repair material 5 prepared around the upper end of the manhole frame 1 as shown in FIG. 4D.

When the road repair material 5 is installed, the road repair material compacting step S60 of compacting the upper circumference of the road repair material 5 is provided.

When the compaction work of the road repair material 5 is completed, a manhole cover support seating step S70 for seating the manhole cover support 4 on the upper part of the road repair material 5 installed as shown in FIG. 4E is provided.

When the manhole cover support 4 is seated, as shown in FIG. 4F, the finishing compaction material 6 is disposed around the finishing hole and the finishing compaction material laying step S80 is provided to fix the manhole cover support 4.

The manhole repair apparatus and its repair method of the present invention has the following advantages.

First, since the manhole frame 1 is sufficiently heated, and the road repair material 5 is installed, the permeability of the manhole frame 1 is improved, so that the bonding force between the road repair material 5 and the manhole frame 1 is increased and the long term elapses. The road maintenance material 5 is not lifted from the manhole frame 1, thereby preventing the pavement and the road maintenance material 5 from cracking.

In addition, the manhole frame 1 is heated to maintain 60 to 100 before the road repair material 5 is applied. Therefore, when the road repair material 5 is applied to the heated manhole frame 1, the curing time of the road repair material 5 is shortened by that amount. Therefore, after the manhole repair work, the road repair material 5 hardens relatively quickly, thereby reducing the repair time, thereby reducing the control time of the vehicle.

Since the present invention seals the manhole 2 with the manhole temporary cover 10 before the manhole frame 1 is heated, it is possible to prevent safety accidents due to the gas emitted from the manhole 2 in advance and to perform eco-friendly construction. Can be.

In addition, the upper part of the temperature sensor 20 and the sensor line 21 is provided so that the temperature sensor cover 30 can be opened and closed simply around the hinge pin 32. Therefore, when the temperature sensor 20 is attached to or detached from the coupling hole 12 of the manhole temporary cover 10, the temperature sensor cover 30 is opened and the temperature sensor cover 30 is heated when the manhole frame 1 is heated. Work with closed). Therefore, the detachable operation of the temperature sensor 20 is not prevented by the temperature sensor cover 30 which can be easily opened and closed, and main components are protected from the flame.

FIG. 5 is a schematic cross-sectional view showing another embodiment of the manhole repair apparatus, which includes a manhole temporary cover 50, a temperature sensor 60, and a display unit 70.

The manhole temporary cover 50 cuts the road pavement body 3 around the manhole cover base 4 to be repaired and before applying the road repair material 5 around the top of the manhole frame 1, the manhole 2. ) To block the gas inside the manhole (2) from being discharged to the outside.

The manhole temporary cover 50, the plurality of support protrusions 51 are protruded to be supported around the upper end of the manhole frame 1, the coupling grooves 52 are formed in the lower portion of the support protrusion 51, Sensor line grooves 53 are formed to connect the coupling grooves 52 and the space in the upper center thereof.

The temperature sensor 60 is inserted into the coupling grooves 52 of the support protrusions 51 and the bottom surface thereof is in contact with the upper surface of the manhole frame 1 so that the upper surface of the manhole frame 1 is heated. Measure the temperature.

The display unit 70 is connected to the temperature sensor 60 by the sensor wires 61 installed on the upper surface of the manhole frame temporary cover 50 and built in the sensor wire grooves 53 to display the measured temperature. do.

In the present invention, the temperature sensor 60 is installed in the lower portion of the manhole temporary cover 50 and the sensor lines 61 are embedded in the sensor line grooves 53 of the manhole temporary cover 50. Therefore, since the temperature sensor 60 and the sensor wires 61 are not exposed to the outside in the state in which the manhole temporary cover 50 is installed in the manhole frame 1, the heating operation and the outside of the manhole frame 1 Protected from shock.

6A and 6B are schematic cross-sectional views showing a further embodiment of the manhole repair apparatus and a partial plan view thereof, which includes a manhole temporary cover 80, a lower plate 90, a temperature sensor 100, a spring 110, and a display. It is made of a portion 120.

The manhole temporary cover 80 cuts the road pavement body 3 around the manhole cover base 4 to be repaired and before applying the road repair material 5 around the top of the manhole frame 1, the manhole 2. ) To block the gas inside the manhole (2) from being discharged to the outside.

The manhole temporary cover 80, the tapered surface 81 is formed in the lower circumference so as to be supported around the upper circumference of the inner circumferential surface of the manhole frame 1, the engaging protrusion 91 of the lower plate 90 to be described later is inserted in the center The through-hole 82 is formed so that it may become.

The lower plate 90 has a coupling protrusion 91 protruding from the center thereof so as to be coupled to the lower portion of the manhole temporary cover 80, and a male screw portion 92 is formed around the upper end of the coupling protrusion 91.

The temperature sensor 100 is installed to slide on both sides of the upper surface of the lower plate 90 and measures the temperature of the manhole frame 1 that is heated in close contact with the inner circumferential surface of the manhole frame 1.

The spring 110 is installed on the upper surface of the lower plate 90 and both ends thereof are supported by the coupling protrusion 91 and the temperature sensor 100 to elastically support the temperature sensor 100 toward the inner circumferential surface side of the manhole frame 1. do.

The display unit 120 is installed on the upper surface of the manhole frame temporary cover 80 and the female screw portion 121 is formed at the lower end thereof, so that the female screw portion 121 is connected to the male screw portion 92 of the engaging protrusion 91. Is fastened. The display unit 120 is connected to the temperature sensor 100 by the sensor line 101 and displays the measured temperature.

In the manhole repair apparatus of the present invention, a tapered surface 81 is formed at the lower portion of the manhole temporary cover 80 so as to be supported on the upper end of the inner circumferential surface of the manhole frame 1. When the manhole temporary cover 80 is covered on the upper end of the manhole 2, a portion of the tapered surface 81 is supported while being seated around the top of the inner circumferential surface of the manhole frame 1.

Therefore, even if the diameter of the manhole 2 is different or the outer diameter of the manhole temporary cover 80 does not match the diameter of the manhole 2, the diameter of the manhole 2 is in the range between the minimum diameter and the maximum diameter of the tapered surface 81. When included in the manhole temporary cover 80, the manhole 2 is sealed, thereby improving the compatibility of the manhole temporary cover 80.

In addition, the manhole temporary cover 80 is supported at the edge of the upper end of the inner circumferential surface of the manhole 2, rather than the tapered surface 81 of the lower portion is in contact with the upper surface of the manhole frame (1). Therefore, the entire upper surface of the manhole frame 1 is not covered by the manhole temporary cover 80 and is exposed to the outside as it is.

Therefore, since the entire upper surface of the manhole frame 1 is heated without the part covered by the manhole temporary cover 80, the heating speed is so fast, and the entire upper surface of the manhole temporary cover 80 is uniformly heated.

7 is a schematic cross-sectional view showing another embodiment of the manhole repair apparatus, which includes a manhole temporary cover 130, a temperature sensor 140, a bolt 150, a nut 160, and a display unit 170.

The manhole temporary cover 130 cuts the road pavement body 3 around the manhole cover base 4 to be repaired and before applying the road repair material 5 around the top of the manhole frame 1, the manhole 2. ) To block the gas inside the manhole (2) from being discharged to the outside. The manhole temporary cover 130 has a tapered surface 131 formed on the lower circumference thereof so as to be supported around the upper circumference of the inner circumferential surface of the manhole frame 1, and the male screw portion 152 of the bolt 150 to be described later is inserted therein. The through hole 132 is formed.

The temperature sensor 140 measures the temperature of the manhole frame 1 that is in close contact with the lower surface of the manhole frame 1 and is heated.

The bolt 150 has a lower bolt head 151 supported by the temperature sensor 140 and an upper end portion penetrating through the manhole temporary cover 130 to protrude upward.

The nut 160 is fastened to the male threaded portion 152 of the upper end of the bolt 150 so that the bolt 150 is supported by the manhole temporary cover 130 and the bolt 150 is pulled upwards so that the temperature sensor 140 is the manhole. It is in close contact with the lower surface of the mold (1).

The display unit 170 is installed on the upper surface of the manhole temporary cover 130 and is connected to the temperature sensor 140 by the sensor line 141 to display the measured temperature.

The manhole repair device of the present invention, the temperature sensor 140 is in close contact with the lower surface of the manhole frame 1 and is coupled to the manhole temporary cover 130 by the bolt 150 and the nut 160, the nut 160 ), The manhole temporary cover 130 and the temperature sensor 140 are in close contact with the upper and lower parts of the manhole frame 1.

Accordingly, the manhole temporary cover 130 is fixed to the upper surface of the manhole frame 1 by the temperature sensor 140, the bolt 150, and the nut 160, and thus the manhole temporary cover 130 is not heavy. Since the manhole 2 can be securely sealed, the manhole temporary cover 130 is easily transported and installed.

8 is a schematic cross-sectional view showing another embodiment of the manhole repair apparatus, which includes a manhole temporary cover 180, a manhole frame 190, a temperature sensor rod 200, and a display unit 210.

The manhole temporary cover 180 covers the manhole 2 inside the manhole 2 after cutting the road pavement 3 around the manhole cover support 4 to be repaired and before applying the road repair material 5. It is coupled to the inner circumferential surface of the manhole 2 to block the gas from being discharged to the outside. The manhole temporary cover 180 is formed with an inclined installation hole 181 connected from the upper surface to the outer circumferential surface.

The manhole frame 190 is formed with a fixing groove 191 inclined from the inner circumferential surface thereof to be in line with the installation hole 181 of the manhole temporary cover 180.

The temperature sensor rod 200 is coupled to the fixing groove 191 of the manhole frame 190 after one side passes through the installation hole 181 of the manhole temporary cover 180 to manhole frame (180) It is fixed to 190 and the temperature of the manhole frame 190 is heated.

The display unit 210 is installed on the upper surface of the manhole temporary cover 180 and is connected to the temperature sensor rod 200 by the sensor line 201 to display the measured temperature.

As described above, the manhole temporary cover 180 is formed with an inclined installation hole 181 connected from the upper surface to the outer circumferential surface, and the manhole frame 190 has an installation hole 181 of the manhole temporary cover 180 and A fixing groove 191 inclined from the inner circumferential surface to the same line is formed, and a temperature sensor rod is provided in the installation hole 181 of the manhole temporary cover 180 and the fixing groove 191 of the manhole frame 190. 200) is combined. Therefore, the manhole temporary cover 180 and the manhole frame 190 are simply coupled by the temperature sensor rod 200.

In addition, the present invention does not cover the upper surface of the manhole frame 190 because the entire manhole temporary cover 180 is inserted into the inner circumferential surface of the manhole frame 190. Therefore, since the entire surface of the manhole frame 190 is heated without the part covered by the manhole temporary cover 180, the entire manhole frame 190 may be uniformly heated.

1,190 manhole frame 2: manhole
3: road pavement 4: manhole cover support
5: road repair material 6: finishing compaction material
10,50,80,130,180: Manhole temporary cover 11,51: Supporting protrusion
12: coupling hole 13,31: hinge
20,60,100,140: Temperature sensor 21,61,101,141,201: Sensor wire
30: temperature sensor cover 32: hinge pin
40,70,120,170,210: display unit 52: coupling groove
53: sensor wire groove 81,131: tapered surface
82,132: through hole 90: bottom plate
91: engaging protrusion 92,152: male threaded portion
110: spring 121: female thread
150: bolt 151: bolt head
160: nut 181: mounting hole
191: fixing groove 200: sensor rod

Claims (6)

After cutting the road pavement 3 around the manhole cover bearing 4 to be repaired and before applying the road repair material 5 around the top of the manhole frame 1, the manhole 2 is covered to cover the inside of the manhole 2. A manhole temporary cover 10 which prevents the gas from being discharged to the outside and the plurality of supporting protrusions 11 protrude from the upper end of the manhole frame 1;
Temperature sensor that is inserted into the support protrusions 11 of the manhole temporary cover 10 and one surface is in contact with the upper surface of the manhole frame 1 to measure the upper surface temperature when the upper surface of the manhole frame 1 is heated. 20;
A temperature sensor cover 30 installed to open and close on the upper surfaces of the support protrusions 11 to protect the temperature sensor 20 and the sensor lines 21;
The manhole frame cover 10 is installed on the upper surface and connected to the temperature sensor 20, the display unit 40 for displaying the measured temperature; Environmentally maneuverable road manhole repair device, characterized in that consisting of. After cutting the road pavement 3 around the manhole cover bearing 4 to be repaired and before applying the road repair material 5 around the top of the manhole frame 1, the manhole 2 is covered to cover the inside of the manhole 2. To prevent the gas from being discharged to the outside, a plurality of support protrusions 51 are protruded to be supported around the upper end of the manhole frame 1, the coupling grooves 52 are formed in the lower portion of the support protrusion 51 And a manhole temporary cover 50 in which sensor line grooves 53 are formed so that the coupling grooves 52 and the space at the upper center thereof are connected to each other;
The temperature sensor is inserted into the coupling grooves 52 of the support protrusions 51 and one surface is in contact with the upper surface of the manhole frame 1 to measure the temperature of the upper surface when the upper surface of the manhole frame 1 is heated. 60);
A display unit 70 installed on the upper surface of the manhole frame cover 50 and connected to the temperature sensor 60 by the sensor wires 61 embedded in the sensor wire grooves 53 to display the measured temperature; Road manhole repair device with improved eco-friendly construction, characterized in that consisting of. After cutting the road pavement 3 around the manhole cover bearing 4 to be repaired and before applying the road repair material 5 around the top of the manhole frame 1, the manhole 2 is covered to cover the inside of the manhole 2. Manhole temporary cover 80 to block the discharge of the gas to the outside, the tapered surface 81 is formed in the lower circumference to be supported around the top of the inner circumferential surface of the manhole frame (1);
A lower plate 90 having a coupling protrusion 91 protruded from the center thereof so as to be coupled to a lower portion of the manhole temporary cover 80;
A temperature sensor 100 installed to slide on both sides of the upper surface of the lower plate 90 and measuring a temperature of the manhole frame 1 heated by being in close contact with the inner circumferential surface of the manhole frame 1;
A spring 110 installed at an upper surface of the lower plate 90 and supported at both ends by a coupling protrusion 91 and a temperature sensor 100 to elastically support the temperature sensor 100 toward the inner circumferential surface side of the manhole frame 1;
The manhole frame temporary cover 80 is installed on the upper surface and connected to the temperature sensor 100, the display unit 120 to display the measured temperature; Environmentally maneuverable road manhole repair device, characterized in that consisting of. After cutting the road pavement 3 around the manhole cover bearing 4 to be repaired and before applying the road repair material 5 around the top of the manhole frame 1, the manhole 2 is covered to cover the inside of the manhole 2. A manhole temporary cover 130 which blocks the gas from being discharged to the outside and has a tapered surface 131 formed around the lower end of the manhole frame 1 so as to be supported around the upper end of the inner circumferential surface;
A temperature sensor 140 in close contact with the lower surface of the manhole frame 1 and measuring a temperature of the manhole frame 1 being heated;
The bolt head 151 of the lower end is supported by the temperature sensor 140, the upper end of the bolt 150 through the manhole temporary cover 130 to protrude upward;
It is fastened to the upper end of the bolt 150 so that the bolt 150 is supported by the manhole temporary cover 130 and pulls the bolt 150 upward so that the temperature sensor 140 is in close contact with the lower surface of the manhole frame 1. Nut 160;
The manhole frame temporary cover 130 is installed on the upper surface and connected to the temperature sensor 140, the display unit 170 for displaying the measured temperature; Environmentally maneuverable road manhole repair device, characterized in that consisting of. After cutting the road pavement 3 around the manhole cover bearing 4 to be repaired, and before applying the road repair material 5, the manhole 2 is covered to block the gas inside the manhole 2 from being discharged to the outside. A manhole temporary cover 180 coupled to the inner circumferential surface of the manhole 2 and having an inclined installation hole 181 connected from the upper surface to the outer circumferential surface thereof;
A manhole frame 190 in which a fixing groove 191 inclined from the inner circumferential surface thereof to be in line with the installation hole 181 of the manhole temporary cover 180 is formed;
One side penetrates the installation hole 181 of the manhole temporary cover 180 and then is coupled to the fixing groove 191 of the manhole frame 190 to fix the manhole temporary cover 180 to the manhole frame 190 and heat the manhole. A temperature sensor rod 200 for measuring the temperature of the mold 190;
The manhole frame temporary cover 180 is installed on the upper surface and connected to the temperature sensor rod 200, the display unit 210 for displaying the measured temperature; Environmentally maneuverable road manhole repair device, characterized in that consisting of. After cutting the road pavement around the manhole cover base to be repaired, and before applying the road repair material around the top of the manhole frame, cover the manhole to prevent the gas inside the manhole from being discharged to the outside and to the manhole frame. A manhole repair method using a manhole repair device comprising a temperature sensor for measuring the temperature of a manhole frame heated by contact and a display unit installed on the upper surface of the manhole frame temporary cover and connected to a temperature sensor to display the measured temperature.
70 to 80 parts by weight of silica sand, 5 to 20 parts by weight of polyfunctional polyether mixture, and 5 to 15 parts by weight of special MDI NCO (MDI NCO 28%) are mixed to make a repair material, and 15 to 25 parts by weight of silica sand is 2 mm or less. Road repair material preparation step (S10) for preparing a road repair material (5) made by mixing 75 to 85 parts by weight of the aggregate made;
A road pavement cutting step S20 of cutting the road pavement 3 around the manhole cover support 4 to be repaired when the road repairing material 5 is prepared;
After the road pavement cutting step (S20), by installing the manhole temporary cover 10, 50, 80, 130 on the upper part of the manhole frame (1) to install the road repair material pretreatment device to seal the manhole (2) S30);
After applying the pretreatment device installation step (S30) by heating the upper surface of the manhole frame (1) exposed to the upper part of the manhole frame (1) to maintain the 60 ~ 100 when applying the road repair material (5) Manhole heating step of heating the upper surface (S40);
A road repairing material laying step (S50) of laying the road repairing material (5) prepared around the upper end of the manhole frame (1) when the manhole frame (1) is heated;
Road repair material compacting step (S60) for compacting around the upper surface of the road repair material 5 when the road repair material 5 is installed;
When the compaction work of the road repair material 5 is completed, the manhole cover support seating step (S70) for seating the manhole cover support 4 on the installed road repair material (5);
When the manhole cover support (4) is seated, the finishing compaction material laying step (S80) for fixing the manhole cover support (4) by installing a finishing compaction material around the road; Manhole repair method.
KR1020100030235A 2010-04-02 2010-04-02 Manhole mending device and manhole mending method for environmental-friendly construction KR20110110931A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108824481A (en) * 2018-06-20 2018-11-16 上海市政工程设计研究总院（集团）有限公司 A kind of piping lane system
CN110863497A (en) * 2019-10-11 2020-03-06 石家庄铁道大学 Mounting construction protection device and construction method for ballast track sensor
KR102118064B1 (en) * 2020-02-26 2020-06-09 주식회사 제이엠종합건설 Uninterruptible construction method of high and low pressure uninterruptible junction box using recycled composite resin
CN112081138A (en) * 2019-06-13 2020-12-15 中国华西企业有限公司 Light-transmitting and self-luminous integrated manhole cover and manufacturing method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108824481A (en) * 2018-06-20 2018-11-16 上海市政工程设计研究总院（集团）有限公司 A kind of piping lane system
CN112081138A (en) * 2019-06-13 2020-12-15 中国华西企业有限公司 Light-transmitting and self-luminous integrated manhole cover and manufacturing method thereof
CN110863497A (en) * 2019-10-11 2020-03-06 石家庄铁道大学 Mounting construction protection device and construction method for ballast track sensor
CN110863497B (en) * 2019-10-11 2024-04-26 石家庄铁道大学 Ballasted track sensor installation and construction protection device and construction method
KR102118064B1 (en) * 2020-02-26 2020-06-09 주식회사 제이엠종합건설 Uninterruptible construction method of high and low pressure uninterruptible junction box using recycled composite resin

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