KR102372024B1 - Underpass joint construction method - Google Patents

Abstract

The present invention relates to an underpass joint construction method that minimizes plastic deformation and improves product durability, which is implemented to ensure vehicle safety and speed by increasing the rigidity of expansion joints so that plastic deformation of expansion joints does not occur while resolving a problem of waterproofing occurring in a space of an underpass slab superstructure and eliminating vibration and noise problems caused by passing vehicles by improving the flatness of a road surface at the same time. The underpass joint construction method of the present invention includes a cutting step of cutting and breaking a construction site of an underpass where a joint is to be constructed.

Description

Underpass joint construction method to improve product durability by minimizing plastic deformation {UNDERPASS JOINT CONSTRUCTION METHOD}

The present invention relates to an underpass joint construction method that improves durability of products by minimizing plastic deformation. Basement with improved product durability by minimizing the plastic deformation implemented to secure vehicle safety and speed by increasing the rigidity of the expansion joint to prevent the occurrence of vibration and noise while also preventing plastic deformation of the expansion joint. It relates to a roadway joint construction method.

In connection with the asphalt road pavement in the underpass of the road opening construction, the characteristics of concrete expansion joints and the effect of concrete spherical behavior on the asphalt pavement were designed without sufficient consideration. Due to factors such as serious damage (cracks, dents, breakage) of the upper asphalt layer of the expansion joint and the infiltration of water into the damaged area, there is a problem that the asphalt layer and the concrete sphere can be rapidly destroyed.

In addition, there is a risk of cracking of the asphalt pavement due to the effect of the expansion and contraction action of the concrete sphere, and concerns about the occurrence of fatigue destruction of the asphalt pavement due to vehicle vibration and impact load. Have.

On the other hand, the above-mentioned background art is technical information that the inventor possessed for the purpose of derivation of the present invention or acquired during the derivation process of the present invention, and it cannot be said that it is necessarily known technology disclosed to the general public before the filing of the present invention. .

Korean Patent Registration No. 10-0407777

One aspect of the present invention is to solve the problem of waterproofing occurring in the space of the subterranean slab superstructure and the flatness of the road surface to solve the vibration or noise caused by passing vehicles, and at the same time to prevent plastic deformation of the expansion joint from occurring. We provide a joint construction method for an underground car that improves durability by minimizing plastic deformation implemented to secure vehicle safety and speed by increasing rigidity.

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

According to an embodiment of the present invention, the method for constructing an underpass joint to improve durability of a product by minimizing plastic deformation includes a cutting step of cutting and breaking the construction site of the underpass to construct the joint.

In one embodiment, the underpass joint construction method for improving the durability of the product by minimizing plastic deformation according to an embodiment of the present invention comprises: a surface cleaning step of removing foreign substances from the cut and broken construction site by the cutting step; A backup material installation step of installing a backup material along the crack area for filling the crack area along the crack area formed in the construction site; a primer application step of applying a primer to the construction surface arranged by the surface cleaning step; Reinforcing sheet installation step of installing a reinforcing sheet using a set anchor on the upper side of the primer applied by the primer application step; CW CON'C pouring step of filling the construction surface by applying CW CON'C on the upper side of the reinforcement sheet installed by the reinforcement sheet installation step; The compaction step of compacting the CW CON'C filled in the construction surface; A finishing compound application step of finishing the construction surface by applying a finishing compound after masking taping on the upper side of the CW CON'C installed by the CW CON'C pouring step; and a curing step of curing the CW CON'C filled in the construction surface.

In one embodiment, the CW CON'C used in the CW CON'C pouring step is a secondary coated CW CON'C through a step of heating and cooling the aggregate in the range of 40 to 80 ° C_ using a heating device. can be used.

In one embodiment, the reinforcing sheet used in the reinforcing sheet installation step may be an impregnated fiber reinforced sheet (Impregnated Fiber Reinforced Sheet).

In one embodiment, the reinforcing sheet used in the step of installing the reinforcing sheet can prevent cracks or cracks in the CW CON'C by uniformly distributing the load of the CW CON'C downward.

In one embodiment, the underground road joint construction method for improving the durability of the product by minimizing plastic deformation according to another embodiment of the present invention is to prevent foreign substances from adhering to the construction surface after the step of applying the finishing compound. It may further include a paving step for covering the upper side of the construction surface.

In one embodiment, the packaging step, a seating step of seating the wrapping paper to cover the upper side of the construction surface on the upper side of the construction surface; A first attachment step of attaching the rear end of the wrapping paper covering the upper side of the construction surface to the bottom surface; and a second attachment step of attaching the front end of the wrapping paper to the bottom surface using an adhesive tape.

In one embodiment, the wrapping paper, the wrapping paper body covering the upper side of the construction surface; a tension control bar made of an elastic material and installed on the upper side of the front end of the wrapping paper body, the front end being exposed to the front of the wrapping paper body; A fixed frame installed on the lower side of the front end of the tension control bar, installed so as to be exposed to the front of the tension control bar, and installed on the bottom surface together with the adhesive tape while the adhesive tape is attached to the upper side by the second attachment step ; a fastening pin installed upright on the rear end of the fixing frame to fasten the tension bar; a front end installation groove extending along the inner side of the tension control bar from the front end of the tension control bar; a tension control frame installed at the rear end of the front end installation groove; a bolt seating groove extending from the front end of the tension control frame along the inner side of the tension control frame, and forming a thread along the inner circumferential surface; and a screw thread passing through a through hole formed in the fastening pin and inserted along the front end installation groove and formed at the rear end engages with the screw thread formed in the bolt seating groove and is installed while rotating in a clockwise or counterclockwise direction. It may include; a tension control bolt for moving the tension control frame in the front end or rear end direction.

According to one aspect of the present invention described above, the waterproof problem occurring in the slab superstructure space of the underpass and the flatness of the road surface are improved to solve the vibration or noise caused by passing vehicles, and at the same time, plastic deformation of the expansion joint is not issued. By increasing the rigidity of the expansion joint, it is possible to secure the safety and speed of the vehicle.

In addition, it is possible to provide an effect of providing an economical construction method that can absorb the behavior of the expansion joint as a reinforcement measure for the expansion joint of the underground car and withstand the vibration and shock load of the vehicle.

The effects of the present invention are not limited to the above-mentioned effects, and various effects may be included within the range apparent to those skilled in the art from the following description.

1 is a flowchart illustrating a method of constructing an underpass joint to improve durability of a product by minimizing plastic deformation according to an embodiment of the present invention.
2 is a flowchart illustrating a method of constructing an underpass joint to improve durability of a product by minimizing plastic deformation according to another embodiment of the present invention.
3 and 4 are views illustrating a method of joint construction of an underpass in which durability of a product is improved by minimizing plastic deformation according to another embodiment of the present invention.
5 is a flowchart illustrating a method of constructing an underpass joint to improve durability of a product by minimizing plastic deformation according to another embodiment of the present invention.
6 is a view showing the wrapping paper used in the packaging step according to the present invention described above in FIG. 5 .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] Reference is made to the accompanying drawings, which show by way of illustration specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein with respect to one embodiment may be implemented in other embodiments without departing from the spirit and scope of the invention. In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the following detailed description is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scope equivalents to those claimed. Like reference numerals in the drawings refer to the same or similar functions throughout the various aspects.

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

1 is a flowchart illustrating a method of constructing an underpass joint to improve durability of a product by minimizing plastic deformation according to an embodiment of the present invention.

Referring to Figure 1, the underpass joint construction method in which the durability of the product is improved by minimizing plastic deformation according to an embodiment of the present invention,

Cut and break the construction site of the underpass where the joint 10 is to be constructed (S110).

In this case, the joint 10 includes a backup material 11 , a primer 12 , a reinforcing sheet 13 , a CW CON'C 14 , and a finishing compound 17 used in each step to be described later.

2 is a flowchart illustrating a method of constructing an underpass joint to improve durability of a product by minimizing plastic deformation according to another embodiment of the present invention.

Referring to FIG. 2 , the underpass joint construction method for improving durability of products by minimizing plastic deformation according to another embodiment of the present invention uses compressed air using a compressor or a foreign material removal device such as a broom. Thus, the foreign material of the cut and broken construction site by the above-described cutting step (S110) is removed (S120).

The backup material 11 for filling the cracked part along the cracked part formed in the construction part is installed along the cracked part S3 (S130).

The primer 12 is applied to the construction surface 20 cleaned by the surface cleaning step (S120) described above (S140).

Install the reinforcing sheet 13 using the set anchor 18 on the upper side of the primer 12 applied by the primer application step (S140) (S150).

CW CON'C 14 is applied to the upper side of the reinforcement sheet 13 installed by the reinforcement sheet installation step (S150) to fill the construction surface 20 (S160).

Here, the CW CON'C (14) is made by mixing aggregate, soluble resin composition, and lime powder material.

In one embodiment, the reinforcing sheet 13 used in the reinforcing sheet installation step (S150) may be an impregnated fiber reinforced sheet 13 (Impregnated Fiber Reinforced Sheet).

In one embodiment, the reinforcing sheet 13 used in the reinforcing sheet installation step (S150) uniformly distributes the load of the CW CON'C 14 downward to prevent cracks or cracks in the CW CON'C 14 . It can prevent cracks due to its excellent ozone resistance, chemical resistance, and abrasion resistance.

In one embodiment, the CW CON'C 14 used in the CW CON'C pouring step (S160) is a secondary coating through a step of heating and cooling the aggregate in the range of 40 to 80 ° C_ using a heating device. CW CON'C 14 may be used.

CW CON'C 14 filled in the construction surface 20 is compacted (S170).

After masking taping on the upper side of the CW CON'C 14 installed by the CW CON'C pouring step (S160), the finishing compound 17 is applied to finish the construction surface 20 (S180).

The CW CON'C 14 filled in the construction surface 20 is cured (S190).

The method for constructing an underpass joint, which improves durability of a product by minimizing plastic deformation according to another embodiment of the present invention having the steps as described above, includes an underpass joint, an expansion joint block-out part (later material), a highway, etc. It can be installed for concrete repairs, ports, new joint sections of covered structures, for concrete repair on the shore, space filling materials, and other areas that require waterproofing or dampening of impact. The safety and speed of the vehicle can be secured by improving the flatness of the road surface to eliminate vibration or noise caused by passing vehicles, and at the same time, by increasing the rigidity of the expansion joint to prevent plastic deformation of the expansion joint.

In addition, it is possible to provide an economical construction method that can absorb the behavior of the expansion joint and withstand the vibration and shock load of the vehicle as a reinforcement measure for the expansion joint of the underground car.

In addition, by inserting a reinforcing sheet, it is possible to prevent cracks and cracks in the CW CON'C (14), it has both elasticity and semi-rigidity, so it has excellent durability, excellent adhesion to the existing pavement layer and concrete, and plastic deformation. It is almost nonexistent, and it has good drivability by maintaining continuity with the existing pavement layer, quick curing, quick opening of traffic, simple construction and easy maintenance, and can guarantee uniform and superior quality than on-site casting with standardized factory mix. .

5 is a flowchart illustrating a method of constructing an underpass joint to improve durability of a product by minimizing plastic deformation according to another embodiment of the present invention.

Referring to FIG. 5 , in the underground road joint construction method in which the durability of the product is improved by minimizing plastic deformation according to another embodiment of the present invention, there is no foreign material on the construction surface 20 after the finishing compound application step (S1800). The upper side of the construction surface 20 is covered to prevent attachment (S200).

In one embodiment, the packaging step (S200) is a seating step of seating the wrapping paper 30 to cover the upper side of the construction surface 20 on the upper side of the construction surface 20, the wrapping paper covering the upper side of the construction surface 20 ( 30) may be performed by a first attaching step of attaching the rear end to the bottom surface, and a second attaching step of attaching the front end of the wrapping paper 30 to the floor surface using an adhesive tape (T).

According to another embodiment of the present invention having the steps as described above, the underground road joint construction method that improves durability of products by minimizing plastic deformation is, in curing the CW CON'C 14, foreign substances such as sand By being attached to the CW CON'C (14) to prevent the CW CON'C (14) from being contaminated, it is possible to improve the curing quality of the CW CON'C (14).

6 is a view showing the wrapping paper used in the packaging step according to the present invention described above in FIG. 5 .

Referring to FIG. 6 , the wrapping paper 30 is a wrapping paper body 100 , a tension adjustment bar 200 , a fixing frame 300 , a fastening pin 400 , a front end installation groove 500 , a tension adjustment frame 600 ). , including a bolt seating groove 700 and a tension adjustment bolt 800 .

The wrapping paper body 100 is made of wrapping paper such as vinyl, and the rear end is attached to the floor surface with an adhesive or the like, and the front end is installed on the floor surface by the tension control bar 200 to the upper side of the construction surface 20 . covered and installed.

The tension control bar 200 is made of an elastic material and installed on the upper side of the front end of the wrapping paper body 100 to pull the front end of the wrapping paper body 100 forward, so that the front end is exposed to the front of the wrapping paper body 100 is installed, and the fixing frame 300 is installed at the lower side of the front end.

The fixing frame 300 is installed on the lower side of the front end of the tension control bar 200, is installed so as to be exposed in the front of the tension control bar 200, and the adhesive tape T is attached to the upper side by the second attachment step. It is installed on the floor surface together with the adhesive tape (T).

The fastening pin 400 is installed upright on the rear end of the fixing frame 300 to fasten the tension control bar 200 .

The front end installation groove 500 is formed to extend along the inside of the tension control bar 200 from the front end of the tension control bar 200 so that the tension control bolt 800 can be inserted, and the tension control frame 600 at the rear end. this is installed

The tension control frame 600 is installed at the rear end of the front end installation groove 500, and the bolt seating groove 700 is formed from the front end.

The bolt seating groove 700 is formed extending along the inside of the tension control frame 600 from the front end of the tension control frame 600 so that the threads of the tension control bolt 800 can be engaged and installed, and the threads along the inner circumferential surface. to form

The tension adjusting bolt 800 passes through a through hole formed in the fastening pin 400 and is inserted along the front end installation groove 500 so that the screw thread formed at the rear end is engaged with the screw thread formed in the bolt seating groove 700 and is connected. installed, and while rotating in a clockwise or counterclockwise direction, the tension control frame 600 moves in the front or rear direction.

Wrapping paper 30 having the configuration as described above, when the tension of the wrapping paper body 100 is lowered by the heat of the sun or the road surface in the state that the CW CON'C 14 is covered, pull the wrapping paper body 100 By giving, it is possible to effectively prevent the crumpled wrapping paper body 100 from being attached to the CW CON'C 14 that has not yet been cured and from generating wrinkle marks, thereby improving the curing quality of the CW CON'C 14 .

The above-described embodiments are for illustration, and those of ordinary skill in the art to which the above-described embodiments pertain can easily transform into other specific forms without changing the technical idea or essential features of the above-described embodiments. you will understand Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope to be protected through the present specification is indicated by the claims described below rather than the above detailed description, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and their equivalents. .

10: joint
11: backup material
12: Primer
13: reinforced sheet
14: CW CON'C
17: Finishing compound
20: construction surface
30: wrapping paper

Claims (3)

A cutting step of cutting and breaking the construction site of the underpass where the joint is to be constructed;
A surface cleaning step of removing foreign substances from the cut and broken construction site by the cutting step;
A backup material installation step of installing a backup material along the crack area for filling the crack area along the crack area formed in the construction site;
a primer application step of applying a primer to the construction surface arranged by the surface cleaning step;
a reinforcement sheet installation step of installing a reinforcement sheet using a set anchor on the upper side of the primer applied by the primer application step;
CW CON'C pouring step of filling the construction surface by applying CW CON'C, a concrete product made by mixing aggregate, soluble resin composition, and lime powder, on the upper side of the reinforcing sheet installed by the reinforcing sheet installation step;
The compaction step of compacting the CW CON'C filled in the construction surface;
A finishing compound application step of finishing the construction surface by applying a finishing compound after masking taping on the upper side of the CW CON'C installed by the CW CON'C pouring step; and
A curing step of curing the CW CON'C filled in the construction surface;
The CW CON'C used in the CW CON'C pouring step is,
After heating and cooling the aggregate in the range of 40~80℃_ using a heating device, the secondary coated CW CON'C is used.
The reinforcing sheet used in the reinforcing sheet installation step is,
Impregnated Fiber Reinforced Sheet is used,
The reinforcing sheet used in the reinforcing sheet installation step is,
By evenly distributing the load of CW CON'C downward, it prevents cracks or cracks in CW CON'C.
The method further includes; a packaging step of covering the upper side of the construction surface to prevent foreign substances from adhering to the construction surface after the application of the finishing compound.
The packaging step is
A seating step of seating the wrapping paper to cover the upper side of the construction surface on the upper side of the construction surface;
A first attachment step of attaching the rear end of the wrapping paper covering the upper side of the construction surface to the bottom surface; and
a second attachment step of attaching the front end of the wrapping paper to the bottom surface using an adhesive tape;
The wrapping paper,
Wrapping paper body covering the upper side of the construction surface;
a tension control bar made of an elastic material and installed on the upper side of the front end of the wrapping paper body, the front end being exposed to the front of the wrapping paper body;
A fixed frame installed on the lower side of the front end of the tension control bar, installed so as to be exposed to the front of the tension control bar, and installed on the bottom surface together with the adhesive tape while the adhesive tape is attached to the upper side by the second attachment step ;
a fastening pin installed upright on the rear end of the fixing frame to fasten the tension bar;
a front end installation groove extending along the inner side of the tension control bar from the front end of the tension control bar;
a tension control frame installed at the rear end of the front end installation groove;
a bolt seating groove extending from the front end of the tension control frame along the inner side of the tension control frame, and forming a thread along the inner circumferential surface; and
The thread passing through the through hole formed in the fastening pin and inserted along the front end installation groove, the screw thread formed at the rear end is engaged with the screw thread formed in the bolt receiving groove, and is installed, and the tension while rotating in a clockwise or counterclockwise direction A method of joint construction for an underpass that minimizes plastic deformation and improves product durability, including; a tension adjustment bolt that moves the adjustment frame in the forward or rearward direction. delete delete

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