KR100585035B1 - Form and it's construction method for underwater pile reinforcement - Google Patents

Abstract

The present invention provides a form and construction method for reinforcing underwater piles to protect the surface of the pile submerged in water and at the same time to install a fiber composite formwork to strengthen the bearing capacity to preserve the load capacity of the pile. There is a purpose.

The present invention comprises the steps of impregnating epoxy to the various fiber material on the surface of the pile of steel pipe pile or concrete pile in the water or splash portion to form a fiber composite form according to the shape of the pile; Covering the surface of the pile to install the coupling of both ends of the fiber composite formwork to each other; Installing upper and lower injection pipes between upper and lower portions of the pile and the fiber composite formwork; The vacuum pump is connected to the upper injection pipe to suck air between the fiber composite formwork and the pile, and the epoxy is connected to the lower injection pipe to evacuate all the air sucked by the upper injection pipe and vacuum the fiber composite. Discharging the epoxy into the upper injection pipe while the epoxy is injected between the die and the pile; When the epoxy filling is completed between the pile and the fiber composite formwork, the upper and lower injection pipes are removed, and the removed portion is characterized in that the step of sealing.

Accordingly, the present invention provides a fiber composite formwork that reliably strengthens the bearing capacity while protecting the surface of the pile in order to prevent the phenomenon that the periphery of the pile installed in the water is corroded or deteriorated by water and the bearing capacity of the pile is reduced. The adhesive enveloping has the advantage of increasing the strength of the pile while at the same time bringing about a covering effect of the pile.

Underwater pile, reinforcement, fiber composite, formwork, construction method

Description

Form and it's construction method for underwater pile reinforcement}

1 is a state installed in the pile pile reinforcement for underwater files according to the present invention.

Timed Perspective,

Figure 2 is a state installed in the pile pile pile reinforcement in accordance with the present invention

Time profile,

Figure 3 is installed in the upper and lower injection pipe in the pile for reinforcing underwater piles according to the present invention

An illustration showing the state,

Figure 4 is connected to the pile pile up and down pile underwater reinforcement in accordance with the present invention

Perspective view

5 is a top and bottom connected to the pile pile pile reinforcement in accordance with the present invention

Cross section,

6 is integrally circular by connecting two formwork for underwater pile reinforcement according to the present invention

Floor plan showing the installed state in a file,

7 is integrally square by connecting two formwork for underwater pile reinforcement according to the present invention

Top view showing the state installed in the file.

Explanation of symbols on the main parts of the drawing

10: file 20: fiber composite formwork

22: bonding portion 30: epoxy in water

40a: upper injection pipe 40b: lower injection pipe

The present invention relates to an underwater pile reinforcement formwork and a construction method, and in particular, by installing a fiber composite formwork to strengthen the bearing capacity while protecting the surface of the pile submerged in the water, the underwater load to preserve the load capacity of the pile It relates to a formwork and construction method for pile reinforcement.

In general, the steel pipe pile is easy to construct and has advantages in terms of strength, but has a weak point in terms of corrosion.

Here, the vertical environment of the ocean where the steel pipe pile is constructed is generally divided into the marine environment part, the splash part, the tidal part, the sea part and the sea basal part according to the action of the seawater.

In the double droplets, the steel pipe pile, which is in contact with the droplets where the thin sea film exists, has the highest corrosion rate because oxygen is sufficiently supplied through the sea film.

Therefore, in order to solve the corrosion of the steel pipe pile as described above, the surface of the steel pipe pile or a pile made of concrete piles in the water was repaired and reinforced by direct epoxy coating or fiber work in water.

However, the epoxy operation as described above, not only does not perform a solid coating operation to the submerged structure, but also a lot of defects occur even if performed, there was a problem causing problems in subsequent processes.

In addition, the above-mentioned epoxy work is to block the surface of the corrosion recovery target portion, and to perform the work of epoxy and the like after the drainage of the water, the additional construction cost in addition to the actual construction cost, as well as a lot of maintenance due to continuous management There was a difficulty.

Accordingly, the present invention has been made to solve the problems described above, by installing a fiber composite formwork around the pile to protect the surface of the pile submerged in water and at the same time to strengthen the bearing capacity, The purpose is to provide a formwork and construction method for reinforcing underwater piles that can be preserved.

Underwater pile reinforcement form according to the present invention for achieving the above object is a fiber composite formwork formed in accordance with the shape of the pile by impregnating epoxy in various fiber materials on the surface of the pile of steel pipe pile or concrete pile in the water or splash portion Cover the surface of the pile to connect the coupling of both ends of the fiber composite formwork to each other, and to connect the upper and lower injection pipes between the pile and the fiber composite formwork, and then using the upper and lower injection pipes It is characterized by filling with epoxy between the fiber composite formwork and the pile.

In addition, the method for constructing the pile pile underwater reinforcement according to the present invention for achieving the above object is impregnated with epoxy in various fiber materials on the surface of the steel pipe pile or pile pile of the underwater or splash portion fiber to match the shape of the pile Forming a composite formwork; Covering the surface of the pile to install the coupling of both ends of the fiber composite formwork to each other; Installing upper and lower injection pipes between upper and lower portions of the pile and the fiber composite formwork; The vacuum pump is connected to the upper injection pipe to suck air between the fiber composite mold and the pile, and the epoxy is connected to the lower injection pipe to evacuate all the air sucked by the upper injection pipe, and the vacuum is exhausted. Discharging the epoxy into the upper injection pipe while the epoxy is injected between the piles; When the epoxy filling is completed between the pile and the fiber composite formwork, the upper and lower injection pipes are removed, and the removed portion is characterized in that the step of sealing.

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

1 is a perspective view showing a state installed in the pile pile pile reinforcement according to the present invention, Figure 2 is a cross-sectional view showing a state installed in the pile pile pile reinforcement according to the present invention, Figure 3 5 is an exemplary view showing a state in which the upper and lower injection pipes are installed in the pile pile reinforcement according to the invention, Figure 4 is a perspective view showing a state in which the pile pile reinforcement in accordance with the present invention is connected to the pile up and down, Figure 5 Is a cross-sectional view showing a state in which the pile for reinforcing pile reinforcement according to the present invention is connected to the pile up and down, Figure 6 is a state showing the state of being installed in a circular pile integrally by connecting two underwater pile reinforcement form according to the present invention 7 is a plan view illustrating a state in which the two piles for reinforcing pile piles according to the present invention are integrally installed on a square pile.

As shown in these drawings, the pile for reinforcing the underwater pile according to the present invention is impregnated with epoxy 30 to the various fiber materials on the surface of the pile (10) of the steel pipe pile or concrete pile in the water or splash portion (10) Cover the surface of the pile 10 by covering the fiber composite formwork 20 formed in accordance with the shape of the (10) to connect the both ends coupling portion 22 of the fiber composite formwork 20 to each other, and to connect the pile 10 and the fiber The upper and lower injection pipes (40a, 40b) is installed in the upper and lower portions between the composite formwork 20 and the fiber composite formwork (20) and the pile (10) using the upper and lower injection pipes (40a, 40b) It is filled with the epoxy 30 between and.

Here, the fiber composite formwork 20 is formed in a rectangular plate as a whole, the coupling portion 22 is formed on both ends of the rectangular plate by the recessed portion, so that the iron portion is fitted into the recessed portion of the recess, or two rectangular plate shape The coupling part 22 is formed in each of the two grooves are formed in each of the two ends separated by.

Here, the fixing portion is inserted into the coupling portion 22 to increase the binding force of the coupling portion 22 by the fixing pin.

In addition, the fiber composite formwork 20 is formed in a circular, square, polygonal shape in accordance with the shape of the pile 10, protrusions, irregularities are formed on the inner side to improve the adhesion, if necessary An uneven portion is formed on the surface of the pile 10 using sand blasting or the like.

On the other hand, a certain amount of sealing material is installed between the upper and lower portions where the fiber composite formwork 20 and the pile 10 meet, and when the air intake in the upper injection pipe 40a installed between the fiber composite formwork 20 and the pile 10 In order to be a vacuum, the epoxy 30 connected to the lower injection pipe 40b can be sucked by the vacuum.

In addition, the upper and lower portions of the fiber composite formwork 20 is the upper, lower injection pipes (40a, 40b) is installed to face each other.

Here, the pile 10 is made of a steel pipe pile 10 or a concrete pile 10, the submerged portion of the pile 10 which is submerged in water and deteriorated or corroded or the pile 10 and the water surface contact. As the water level changes from time to time, the surface of the pile 10 is repeatedly submerged in air and water, thereby preventing the strength of the pile 10 from deteriorating due to deterioration or corrosion of the surface of the pile 10. To do this.

In addition, the fiber composite formwork 20 is that the material is impregnated with the epoxy 30 in the various fiber material to produce a fiber composite formwork 20, and then wrap it around the surface of the pile 10, various fiber materials It is a material that is very resistant to water or air, and the fiber material is impregnated with epoxy 30 so that it is not easily damaged by an external impact. Thus, it is waterproof and protects the strength of the pile 10 and the surface of the pile 10. Bring.

Hereinafter, a formwork for reinforcing underwater piles according to the present invention having the above configuration will be described.

Forming method for reinforcing pile pile underwater according to the present invention is impregnated with the epoxy 30 in the various fiber material on the surface of the pile (10) of the steel pipe pile or concrete pile in the water or splash portion fiber to match the shape of the pile (10) Forming a composite formwork 20;

Covering the surface of the pile (10) to install the coupling portion 22 of the both ends of the fiber composite formwork 20 to be bonded to each other;

Installing upper and lower injection pipes (40a, 40b) between upper and lower portions of the pile (10) and the fiber composite formwork (20);

The vacuum pump is connected to the upper injection pipe 40a to suck air between the fiber composite formwork 20 and the pile 10, and the epoxy 30 is connected to the lower injection pipe 40b to connect the upper injection pipe 40a. Air is sucked out by the vacuum) and the epoxy is discharged between the fiber composite formwork 20 and the pile 10 while the epoxy 30 is injected into the upper injection pipe 40a. step;

When the epoxy filling is completed between the pile 10 and the fiber composite formwork 20, the upper and lower injection pipes 40a and 40b are removed, and the removed part is sealed.

Here, the fiber composite formwork 20 is installed to be connected to the pile 10 continuously, the surface of the pile 10 is wrapped around the coupling portion 22 of both ends of the fiber composite formwork 20 fixedly installed And, overlapping the other fiber composite formwork 20 in order to overlap the lower portion of the fiber composite formwork 20 in order to install the fiber composite formwork 20 from the bottom of the pile 10 upward.

At this time, the coupling portion 22 is inserted into the fixing pin so that the binding force of the coupling portion 22 is increased.

In addition, the upper and lower portions of the fiber composite formwork 20 is installed so that the upper and lower injection pipes face each other, sealing tightly using the underwater epoxy 30 putter, underwater mortar, underwater concrete through the lower injection pipe 40b. do.

Subsequently, the upper injection pipe 40a is sealed and then connected to a vacuum pump to be pumped to maintain a vacuum to remove cracks and to dry the surface of the pile 10.

This is to ensure that the epoxy 30 injected through the lower injection pipe 40b, which is a subsequent process, firmly adheres between the pile 10 and the fiber composite formwork 20.

Thereafter, the epoxy 30 is injected into the lower injection pipe 40b and pumped with a vacuum pump, and the epoxy 30 is tightly filled between the pile 10 and the fiber composite formwork 20 and installed on the upper portion. Inject until the epoxy 30 is discharged into the injection tube (40a).

That is, when the epoxy 30 is injected into the lower injection pipe 40b installed at the bottom when the epoxy 30 is injected, pressure injection is made at the bottom, and is uniformly applied between the pile 10 and the fiber composite formwork 20 gradually. The epoxy 30 is discharged through the upper injection pipe 40a installed in the upper part in a state where the filling of the epoxy 30 in the space part between the pile 10 and the fiber composite formwork 20 is completed. To ensure sufficient time until infusion.

In addition, the epoxy 30 injected through the lower injection pipe 40b completely covers the pile 10 and the fiber composite formwork 20 by pressure, thereby securing a time to rise to the upper side in a fully charged state. To do this.

If the installation positions of the upper and lower injection pipes 40a and 40b are in the same direction, the epoxy 30 injected by the pressure immediately rises to the upper part and is immediately discharged from the upper injection pipe 40a so that the pile 10 and the fiber composite are This is to prevent the filling of the epoxy 30 in a state in which the space between the dies 20 is insufficient, so that uniform filling is achieved.

Therefore, the pile 10 and the fiber composite formwork 20 are closely adhered by the epoxy 30 to protect and reinforce the pile 10 from external impact while being able to resist moisture and external temperature changes, The bearing capacity of the pile 10 can be strengthened.

Finally, the upper and lower injection pipes 40a and 40b installed on the upper and lower portions of the fiber composite formwork 20 are removed, and then the sealing portion is smoothly finished by injecting the sealing material to the portions where the upper and lower injection pipes 40a and 40b are removed. Process.

On the other hand, when the length of the construction of the fiber composite formwork 20 is short, when connecting the fiber composite formwork 20 between each other, the fiber composite formwork 20 is first installed at the lower end of the pile 10, and then the fiber composite When the other fiber composite formwork 20 is installed on the upper outer peripheral surface of the formwork 20 as described above, the fiber composite formwork 20 is connected.

As such, the reason why the fiber composite formwork 20 is connected upward from the lower surface of the pile 10 is to install epoxy 30 injected through the lower injection pipe 40b to form the pile 10 and the fiber composite formwork 20. This is to closely bond the liver.

Although the above-described underwater file is limited to a conventional circular file for convenience, the present invention has been described in detail. However, as illustrated in FIG. 7, the underwater file has no special technical difficulty in applying the present invention to the rectangular file. It is to be understood that the invention is not limited to any particular shape and thus is not intended to limit the present invention.

As described above, the underwater pile reinforcement form according to the present invention is to protect the surface of the pile while preventing the phenomenon that the periphery of the pile installed in the water is corroded or deteriorated by water to reduce the bearing capacity of the pile Enclosing the fiber composite formwork to securely adhere to the pile to provide a sure coating effect of the pile, while protecting the surface of the pile as well as the strength of the pile is increased.

Claims (9)

delete delete delete delete By impregnating various fiber materials with epoxy on the steel pipe piles or pile piles of concrete piles, the fiber composite formwork formed in accordance with the shape of the pile is covered on the surface of the piles, thereby joining both ends of the fiber composite formwork to each other. Underwater pile reinforcement to connect, and to install the upper and lower injection pipes in the upper and lower portions between the pile and the fiber composite formwork, and then epoxy filled between the fiber composite formwork and the pile using the upper and lower injection pipes. In the formwork, A certain amount of sealing material is installed between the fiber composite mold and the upper and lower parts where the pile meets, so that the upper injection pipe installed between the fiber composite mold and the pile can be a vacuum, and the epoxy connected to the lower injection pipe is vacuumed. Formwork for underwater pile reinforcement, characterized in that the suction. delete delete delete delete

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