KR20100023707A

KR20100023707A - Method for constructing repair of manhole

Info

Publication number: KR20100023707A
Application number: KR1020080087070A
Authority: KR
Inventors: 두우균
Original assignee: 두우균
Priority date: 2008-08-22
Filing date: 2008-09-04
Publication date: 2010-03-04

Abstract

The present invention relates to a method for repairing a manhole for repairing a manhole embedded in a road surface as needed, and a structure of a manhole constructed according to the method.

More specifically, while excavating and removing the pavement layer around the manhole, the manhole frame buried in the pavement layer is lifted up on the road surface, and then fixing anchor bolts are attached to a plurality of fixing holes formed in the flange of the manhole frame. The manhole frame is re-installed in the excavated space so that the top surface of the manhole frame matches the road surface, and the gap between the manhole frame and the manhole neck is installed with a number of height adjusters to fill the superhard mortar with good fluidity. Between the pavement layer and the manhole frame, a method of repairing and repairing the manhole to improve the flatness of the road surface by filling the surface pavement material (normal asphalt concrete, etc.) which is very inexpensive, and the structure of the manhole constructed by the method It is about.

To this end, the present invention in the repair construction method of the manhole,

Measuring a height deviation between the manhole cover and the road surface using height measuring barks and rulers;

Preparing a height adjusting material having a required thickness according to the measured content;

Installing a cutter for cutting a pavement layer on top of the manhole in a conventional manner, and then cutting the pavement layer to an appropriate depth to form a cut surface in the pavement layer;

Removing the pavement layer cutting cutter, and then digging the pavement layer between the cut surface and the manhole frame by a conventional method such as rock drilling to completely expose the manhole frame embedded in the pavement layer;

Lifting the manhole frame onto the road surface and mounting fixing bolts to each of the plurality of fixing holes formed in the flanges of the manhole frame;

Using a hand cutter or chisel to trim several places out of the bottom surface of the space in which the pavement layer is excavated so that the height adjustment material can be installed in the trimmed place;

Treating the waste generated in the excavation process according to a conventional method;

Wrapping a mortar spill prevention rubber tube (sponge, foam rubber) with a vinyl cover installed while installing a vinyl cover inside the excavated manhole, and then installing a rubber cover for preventing mortar spillage with a sponge;

Applying an adhesive to a polished bottom surface of the space in which the pavement layer is excavated, and then attaching the prepared height adjusting material on the adhesive;

Confirming and correcting the accuracy of the installed height adjusting material by accurately measuring the height from the height adjusting material installed on the height measuring material and the ruler to the road surface and the thickness of the manhole frame;

Forming a superhard mirror mortar having a very good fluidity in a space between the pavement layer excavated so that the height adjuster is completely buried and the rubber tube (vinyl cover) for preventing the mortar from leaking;

Seating the manhole frame on which the plurality of fixing anchor bolts are mounted on the height adjusting material of the excavated space in which the superscopy mortar is typed;

Making a plate from the top surface of the manhole cover (manhole cover) to the road surface by tightly filling a road pavement material in the space between the manhole frame and the pavement layer;

After the curing of the cemented carbide mortar is carried out to some extent, the vinyl cover and the mortar spill prevention rubber tube installed in the manhole are lifted out of the manhole, and then the manhole cover is covered.

Description

Method for constructing repair of manhole}

In general, various manholes buried on the road surface are provided for access when managing electricity, communication lines, water, gas pipes, and sewers, which are buried underground, and the manhole cover installed at the top of the manhole neck and the top of the manhole neck. It consists of

The manhole neck is formed of bricks or precast concrete, etc., and functions to form a through hole to access the manhole and to securely fix the manhole cover installed on the top.

And the manhole cover is composed of a manhole cover that securely covers the through hole of the manhole and the manhole frame that can be inserted and fixed to the manhole cover.

Meanwhile, the manhole buried at the same height as the road surface when the road is constructed as shown in FIG. 2A may be replaced with a road surface as shown in FIG. If a height deviation occurs, the speed and ride comfort of the vehicle passing over the manhole will be greatly reduced, so the manhole with a large height deviation from the road surface is the manhole that increases the manhole height so that the top surface of the manhole cover and the manhole cover coincide with the road surface. Renovation work will be carried out.

And the manhole renovation is using a variety of methods developed so far,

As an example thereof, a conventional manhole repair method will be described in detail with reference to FIGS. 3A to 5C.

3A to 3J are cross-sectional views sequentially illustrating a conventional manhole repair method.

First, a cutter 605 for pavement layer cutting is installed on the manhole 100 requiring repair work as shown in FIGS. 3A to 3C, and then a cutting surface 602 is formed in the pavement layers 600 and 601 while maintaining a constant distance from the manhole frame. Making a step;

Excavating the pavement layer between the cut surface 602 formed in the pavement layers 600 and 601 and the manhole frame as shown in FIG. 3D with a rock drill, and completely exposing the manhole frame embedded in the pavement layer;

Lifting the manhole frame 100 installed on the existing manhole neck 603 on the road surface as shown in Figure 3e and 3f,

3G to 3I to apply a height-adjustable cemented carbide mortar 305 to the top of the manhole neck 603, and then install the height adjuster 300a and the manhole frame on the cemented carbide mortar;

As shown in FIG. 3J, the space 606 between the paving layer and the manhole frame is filled with a superhard mortar 500a or an expensive road pavement material, and the repairing of the manhole is completed.

4A to 4J are cross-sectional views sequentially showing another conventional manhole repair method.

First, a cutter 605 for pavement layer cutting is installed on the manhole 100 requiring repair work as shown in FIGS. 4A to 4C, and then a cutting surface 602 is formed in the pavement layers 600 and 601 while maintaining a constant distance from the manhole frame. Making a step;

Excavating the pavement layer between the cut surface 602 formed in the pavement layers 600 and 601 and the manhole frame as shown in FIG. 4D with a rock drill, and completely exposing the manhole frame embedded in the pavement layer;

4E to 4G, the manhole frame 100 fixed to the top of the manhole neck is lifted up on the road surface, and the manhole lifted together with the height adjustment spring mechanism 306 mounted on the fastening hole in the flange of the manhole frame. Seating the frame back on top of the manhole neck 603;

Installing a rubber tube 800a for preventing leakage of the superhard mirror mortar 500a filled between the manhole neck 603 and the manhole frame 100 as shown in FIG. 4H;

The manhole frame 100 is fixed by filling the cemented mortar 500a in the space 606 between the pavement layer and the manhole frame and between the manhole neck 603 and the manhole frame 100 as shown in FIGS. Dismantling the rubber tube (800a) for prevention and is characterized by consisting of the step of completing the maintenance of the manhole while covering the manhole cover,

5A to 5C are cross-sectional views schematically showing another conventional manhole repair method.

The manhole frame 100 is installed in the same or similar manner as the method of FIGS. 4A to 4G attached as shown in FIG. 5A, and then the manhole neck 603 and the manhole frame (instead of the rubber mortar prevention rubber tube 800a of FIG. 4H attached). Installing a strip or plate-shaped mortar leakage preventing die 803 between the gaps 100;

5b and 5c to fix the manhole frame by filling the cemented mortar (500a) in the excavated space around the manhole frame, and then remove the formwork for preventing the mortar 803 and cover the manhole cover while repairing the manhole It is characterized by consisting of the steps to complete.

On the other hand, the repair of the manhole is carried out on a road where the traffic is temporarily blocked, so there is a problem in that the repair of the manhole must be completed in the shortest time in order to resume vehicle traffic quickly.

In addition, the conventional methods have a problem of using a lot of expensive materials such as cemented carbide mortar in order to finish the repair of the manhole in the shortest time.

In addition, when the packing material filled between the manhole frame and the pavement layer does not properly fix the manhole frame on the manhole neck, there is a problem of destroying and sinking the pavement layer around the manhole while the manhole frame receiving the eccentric load of the traffic vehicle moves. .

The present invention has been made to solve various problems and the like of the conventional methods,

first; By re-installing the manhole frame, a firm yet stable height adjuster is held between the top surface of the manhole neck and the manhole frame being reinstalled.

A superhard mortar with very good fluidity has just been filled in the space between the upper surface of the manhole neck and the manhole frame to be re-installed, but the fluid between the pavement layer and the manhole frame has good fluidity but very high price Even hard pavement of road pavement materials, such as ordinary asphalt concrete or other pavement pavements, without refilling the material does not sink the re-installed manhole frame. The purpose is to provide a repair method for manholes.

second; Install a fixing anchor bolt in each of the fixing holes formed in the flange of the manhole frame, and then reinstall the manhole frame on the top of the manhole neck so that the anchor bolts are buried in the cemented carbide mortar.

Thereafter, even if the manhole frame receives an eccentric load of a traffic vehicle, an object of the present invention is to provide a method for repairing a manhole in which a manhole frame installed again does not move due to a plurality of anchor bolts buried in the cemented carbide mortar.

The present invention in the repair and construction method of the manhole,

(B) inserting a cemented carbide mortar having a very good fluidity in a space between the pavement layer excavated so that the height adjusting material is completely buried and the rubber tube (vinyl cover) for preventing the mortar from leaking;

On the other hand the present invention in the structure of the manhole repaired according to the repairing method of the manhole,

Superstructure (slab) of manhole neck or culvert;

A height adjuster that firmly supports the manhole frame that is re-installed in a state in which it is installed at the top of the manhole neck or culvert upper structure;

A manhole cover which is installed on top of the height adjuster and comprises a manhole frame and a manhole cover on which a plurality of fixing anchor bolts are mounted;

A superhard mirror mortar filled in the space between the upper structure of the manhole neck or culvert and the manhole frame to be reinstalled;

The repaired manhole structure, characterized in that consisting of the road surface pavement material of ordinary asphalt concrete filled between the manhole frame and the pavement layer.

The present invention has various effects as follows.

A superhard mortar with very good fluidity has just been filled in the space between the upper surface of the manhole neck and the manhole frame to be re-installed, but the fluid between the pavement layer and the manhole frame has good fluidity but very high price Even hard pavement of road pavement materials, such as ordinary asphalt concrete or other pavement pavements, without refilling the material does not sink the re-installed manhole frame. have.

Thereafter, even when the manhole frame is subjected to an eccentric load of the traffic vehicle, the manhole frame may be prevented from moving because of the plurality of anchor bolts buried in the cemented carbide mortar.

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

As shown in FIG. 1 and FIGS. 6A to 7Q, one embodiment of the present invention uses a height measuring tarp 400 and a ruler 401 to measure the height deviation between the manhole cover 101 and the road surface 600a. Measuring;

Preparing a height adjusting material 300b having a required thickness according to the measured content;

Installing a cutter 605 for cutting a pavement layer on top of the manholes 100 and 101 by a conventional method, and then cutting the pavement layers 600 and 601 to a suitable depth to form a cut surface 602 on the pavement layers 600 and 601; ;

After removing the pavement layer cutting cutter 605, the pavement layer 600, 601 between the cutting surface 602 and the manhole frame 100, 101 is excavated by a conventional method such as rock drilling, and embedded in the pavement layer. Fully exposing the manhole frame 100;

Lifting the manhole frame 100 over the road surface 600a and mounting fixing bolts 201a and nuts 203a to a plurality of fixing holes 204 formed in the flanges of the manhole frames;

Using a hand cutter 604 or a chisel to pave several places out of the bottom surface of the space 606 in which the pavement layers 600 and 601 have been excavated so that the height adjuster 300b can be installed in the trimmed place;

After installing the vinyl cover 802 in the excavated manhole, the rubber cover 800 for preventing mortar outflow with the vinyl cover 802 already installed while installing the mortar leakage preventing rubber tube 800 on which the sponge 801 is covered. And wrapping the sponge 801;

Applying an adhesive to a polished bottom surface of the space in which the packaging layers 600 and 601 are excavated, and then attaching the prepared height adjusting member 300b on the adhesive;

Height adjustment material 300b installed by accurately measuring the height of the height measurement material 300b and the height of the manhole frame 100 from the height adjustment material 300b installed by using the height measuring tarp 400 and the ruler 401. Confirming and correcting the accuracy of c);

A step of forming a superhard mortar 500 having a very good fluidity in a space between the pavement layer excavated so that the height adjuster 300b is completely buried and the rubber tube (vinyl cover) for preventing the mortar from leaking; and ;

And seating the manhole frame 100 on which the plurality of anchor bolts 201a and 203a are mounted, on the height adjuster 300b of the excavated space 600 and 601 in which the superhard mortar 500 is typed. ;

Filling the road pavement material 501 firmly between the manhole frame 100 and the pavement layers 600 and 601 to make the plate from the top surface of the manhole frame 100 to the road surface 600a;

Curing of the cemented carbide mortar 500 is carried out to some extent, and then the vinyl cover 802 and the mortar leakage preventing rubber tubes 800 and 801 installed in the manhole 700 are lifted out of the manhole and then cover the manhole cover 101. .

Hereinafter, referring to FIGS. 1 and 6A to 7Q, the repairing method of the manhole according to the present invention will be described in more detail.

1 is a flowchart showing a repair method of a manhole according to the present invention,

6A to 7Q are cross-sectional views sequentially illustrating a repairing method of a manhole according to the present invention.

6A and 6B illustrate a height measuring ruler 401 placed over a height measuring broom 400 between a peripheral road surface 600a of the manhole 101 requiring repair work and a road surface 600a. Sectional view showing the process of measuring the height from the surface of the manhole 101 to the road surface 600a, that is, the height deviation of the road surface and the manhole frame,

6C to 6E show the cutting surface 602 on the outer pavement layer of the manhole frame 100 using the cutter 605 and the cutter 605 installed on the top of the manhole 101. It is a cross-sectional view showing the forming process in sequence,

6F and 6G are cross-sectional views sequentially illustrating a process of removing the excavated manhole frame 100 from the pavement layers 600 and 601 between the manhole frame 100 and the cut surface 602.

FIG. 6h shows that several of the top surfaces of the manhole neck from which the manhole frame 100 is removed may be trimmed using the hand cutter 604 or chisel to attach the height adjuster 300b to each of the several trimmed floors. Is a cross-sectional view showing the process of

6I and 6J are cross-sectional views sequentially illustrating a process of mounting fixing bolts 201a and 203a in each of the fixing holes 204 formed in the flange of the manhole frame.

6K to 6P show that the manhole frame 100 is installed in a manhole from which the manhole frame 100 is removed, and the mortar leaks into the manhole 700 so that the vinyl cover 802 is firmly attached to the manhole neck 603 covered with the vinyl cover. Sectional view showing the process of wrapping the rubber tube for preventing mortar spills with a vinyl cover after installing the rubber rubber tubes (800,801),

Figure 6q is a cross-sectional view of the height adjustment material (300b) installed in a few of the top bottom of the manhole neck trimmed,

6R and 6S are filled with the carbide mortar 500 so that the height adjustment material 300b is sufficiently buried in the space between the pavement layer 600,601 and the mortar outflow rubber tube 800,801 and then buried in the carbide mortar. A cross-sectional view sequentially illustrating a process of seating the manhole frame 100 on which the fixing bolts 201a and 203a are mounted on the height adjuster 300b.

6t is a cross-sectional view illustrating a process of hardly filling general asphalt concrete 501 or a suitable road pavement material 501 in the excavated space between the pavement layers 600 and 601 and the manhole frame 100.

6U to 6X are cross-sectional views sequentially illustrating a process of contracting a mortar leak prevention rubber tube installed in a manhole and removing the manhole and then covering the manhole cover 101 to complete the repair of the manhole.

7A to 7Q are plan views sequentially illustrating a repairing method of a manhole according to the present invention;

7A is a top view of FIG. 2A or 2B attached as a top view of a general manhole,

FIG. 7B is a partial plan view of FIG. 6E attached as a plan view showing a state where the cut surface 602 is formed in the outer pavement layer 600 of the manhole frame 100,

7C is a plan view illustrating a state in which the manhole cover 101 is removed,

FIG. 7D is a plan view illustrating the state in which the manhole frame 100 is completely exposed by excavating between the cut planes 602 and the manhole frame 100 formed on the pavement layers 600 and 601.

FIG. 7E is a plan view of the attached manhole frame, shown in FIG.

7F and 7G are plan views illustrating the process of installing the vinyl cover 802 inside the manhole 700, and are top views of FIGS. 7K and 7L, respectively.

7H to 7J are plan views of FIGS. 6M to 6P, which are attached to a plan view illustrating a process for installing mortar leakage preventing rubber tubes 800 and 801 in a manhole 700 having a vinyl cover 802 installed.

FIG. 7K is a plan view of FIG. 6Q attached as a plan view illustrating a state in which the height adjusting material 300b is installed between the mortar leakage preventing rubber tubes 800 to 802 and the packing layers 600 and 601.

FIG. 7L is a plan view of FIG. 6R attached in a plan view showing a state in which the cemented carbide mortar 500 is filled in the space between the mortar outflow rubber tubes 800, 801, 802 and the cut surface 602 installed inside the manhole.

FIG. 7M is a plan view of FIG. 6S attached as a plan view showing a state in which a manhole frame 100 to which fixing bolts 201a and 203a are fastened is installed in a manhole.

FIG. 7N is a plan view of FIG. 6T attached as a plan view showing a state in which a normal asphalt concrete 501 or other road pavement material is tightly filled between the manhole frame and the excavated pavement layer,

7O and 7P are plan views illustrating a process in which a mortar leakage preventing rubber tube installed in the manhole 700 is removed.

FIG. 7Q is a plan view of FIG. 6X attached as a plan view illustrating a state in which the manhole cover 101 is completed to complete repair of the manhole.

1 is a flowchart showing an embodiment of a repair method of a manhole according to the present invention

Figure 2a is a cross-sectional view showing the structure of the manhole first constructed

Figure 2b is a cross-sectional view showing a state in which the height deviation between the manhole surface and the road surface while the road overlay construction is carried out

3A to 3J are cross-sectional views sequentially showing a conventional manhole repair construction method.

4a to 4j are cross-sectional views sequentially showing another conventional manhole repair method

Figure 5a to 5c is a cross-sectional view schematically showing another conventional manhole repair method

6A through 6X are cross-sectional views sequentially illustrating a repairing method of a manhole according to the present invention.

Figure 7a to 7q is a plan view sequentially showing the repair method of the manhole according to the invention.

100: manhole frame 101: manhole cover

200: manhole neck (precast concrete) 201,201a: anchor bolt for fixing

202: clamp 203,203a: fixing nut

204: fixing hole 300, 300a, 300b: height adjusting material

301: height adjustment material for fine adjustment 302: bottom plate of the height adjustment material

303: Adhesive 304: Silicone

305: superhard mirror mortar for height adjustment 306: spring mechanism for height adjustment

400: height measuring bark 401: height measuring ruler

401a: T-shaped for measuring height 402: Magic pen to mark a boundary line

403: Scale of the height measuring ruler (T-shaped) 404: Pallet

500,500a: Carbide mortar

501: paver (general asphalt concrete or other road paver)

502: primer 600: packaging layer (overlay)

600a: Road surface 601: Pavement layer (surface layer, base layer, roadbed)

602: cutting line (cutting surface) 603: manhole neck (brick, concrete)

604: Hand Cutter 605: Cutter for Cutting Pavement Layer

606: excavated space 700: manhole

701: upper slab of culvert (manhole neck) 702: lower slab of culvert

800,800a: Rubber tube to prevent mortar spill

801: Sponge (foam rubber) for preventing mortar spillage

802: vinyl cover 803: formwork

900, 900a: Waste Collection Bins 901: Waste Collection Bins

902: rubber outflow prevention tube 903: sponge (foamed rubber)

904: A hanging tree hanging for a waste collection auxiliary (modification: auxiliary) container

905 wire rope 906 wire rope fastening hook

907 excavated waste

Claims

In the repair construction method of the manhole,

Lifting the manhole frame onto the road surface;

Mounting a manhole frame on the height adjusting material of the excavated space in which the superscopy mirror mortar is typed;

After the curing of the cemented carbide mortar to some extent, the repair and construction method of the manhole comprising the step of lifting the vinyl cover and the mortar outflow rubber tube installed in the manhole out of the manhole and then covering the manhole cover.

The method of claim 1,

A fixing bolt is installed in each of the fixing holes of the manhole frame installed on the height adjusting material of the excavated space in which the cemented carbide mortar is typed.

In the structure of the manhole repaired according to the manhole repair method,

Superstructure (slab) of manhole neck or culvert;

A height adjusting member firmly supporting a manhole frame installed in a state where the manhole neck or culvert upper structure is installed on the top;

A superhard mortar filled in a narrow space between the upper structure of the manhole neck or culvert (slab) and the manhole frame;

The method of claim 3, wherein

Repaired manhole structure, characterized in that the pavement pavement material is filled instead of the normal asphalt concrete between the manhole frame and the pavement layer.