KR20140028361A

KR20140028361A - Manufacturing method of concrete pile and construction method of concrete pile

Info

Publication number: KR20140028361A
Application number: KR1020120094434A
Authority: KR
Inventors: 이행우; 이병우; 김은태
Original assignee: 주식회사 메카; 김은태
Priority date: 2012-08-28
Filing date: 2012-08-28
Publication date: 2014-03-10

Abstract

The present invention relates to a concrete pile manufacturing method and a concrete pile construction method, and more particularly, to a concrete pile manufacturing method and concrete pile construction method to increase the strength while reducing the weight through a concrete pile using steelmaking slag. .
Concrete pile manufacturing method and concrete pile construction method according to the present invention, the preparation step (S100) to be installed so that the lower portion of the production body (110, 110 ') formed facing each other and the upper portion is exposed on the ground (S100); A steel wire connection step (S200) of installing a plurality of steel wires (100) on the production bodies (110, 110 ') having finished the preparation process (S100); A formwork step (S300) for installing the formwork 200 to surround the steel wires 100 installed through the steel wire heat-treating process (S200); A pouring process (S400) for pouring a ready-mixed concrete (150) onto the formwork (200) installed through the formwork process (S300); And dismantling the formwork 200 while curing the ready-mixed concrete 150 through the pouring process (S400) so that the ready-mixed concrete 150 becomes a pipe-shaped concrete pile 170 surrounding the steel wire 100. Curing process (S500) is included.

Description

Concrete pile manufacturing method and concrete pile construction method {MANUFACTURING METHOD OF CONCRETE PILE AND CONSTRUCTION METHOD OF CONCRETE PILE}

The present invention relates to a concrete pile manufacturing method and a concrete pile construction method, and more particularly, to a concrete pile manufacturing method and concrete pile construction method to increase the strength while reducing the weight through a concrete pile using steelmaking slag. .

Conventional concrete piles, it was common to use only sand, gravel, rebar, but when using materials such as the previous gravel had the disadvantage of destroying the natural environment and expensive.

In addition, concrete, which is mainly used as a material for offshore structures, has been used since the 3rd century BC as an important construction material for the civil engineering industry. As a result, the forests that absorb CO ₂ , the main culprit of global warming, have been damaged, causing environmental problems due to climate change.

Therefore, there is a need to minimize the environmental load in the production and use of concrete, the main material of offshore structures.

In other words, concrete for minimizing the environmental load is a concept that contributes to the preservation of the environment by minimizing the load on the resources and the environment in consideration of materials, mixtures, and manufacturing methods.

The ecosystem of marine life is composed of several layers of complex structure from very small area to large area, so it should be suitable for installation of marine structures such as artificial reefs.

The pore structure of concrete, on the other hand, can produce small to large areas, which is very advantageous for providing habitats for fish and marine life, spawning grounds and shelters. It is thought that by constructing porous eco-friendly concrete to concrete structure, it is possible to create an environment that considers the ecosystem characteristics of living things.

Although the alkali solubility, color, durability, etc. of concrete should be considered in order to manufacture a bio-friendly concrete structure that is comfortable for the habitat of living organisms, there is a problem that has not been realized in the past.

In addition, since most of the shoreline structures are constructed of concrete on the coastline, marine structures should be installed after research on how they affect the habitat environment of the shoreline creatures or what habitat should be created.

Therefore, eco-friendly concrete considering the habitat of ecosystem is considered to be desirable when constructing a revetment. At this time, the slope and structure of the coast should not only be suitable for the coastal environment such as tidal wave, blue, etc. In the meantime, measures should be taken to create a habitat for living organisms.

For example, in the upright lake, R & D is formed to make a lot of irregularities so that it is easy to attach fish and shellfish and marine plants. Is also needed.

However, in the case of a concrete pile used in the prior art, sand or gravel aggregate has a problem that the initial curing is delayed due to the difference in the assembly rate, density (kg / ㎥), absorption rate (%), stability, etc. of the aggregate properties To solve this problem, sodium chloride has been added and used, but the reinforcement of the reinforcing bars due to the sodium chloride causes the reinforcement of the reinforcing bars, thereby causing cracks and breakage of concrete.

In addition, the sand or gravel aggregate used in the concrete pile has a problem that it is difficult to transport and cumbersome because of its high weight.

In particular, the existing sand or gravel aggregate has a problem in that it is difficult to discard after the end of the service life, there is a problem that adversely affects the habitat and spawning of aquatic organisms by causing pollution of the water.

Patent Document Registration Patent 10-0416960

The present invention has been made to solve the above problems, do not use sodium chloride in the concrete surrounding the iron core in the concrete pile, the steel is corroded and accordingly the expansion of the reinforcement can occur to prevent cracking and breakage of the concrete An object of the present invention is to provide a concrete pile manufacturing method and a concrete pile construction method.

Concrete pile manufacturing method and concrete pile construction method according to the present invention, by minimizing the weight of the concrete portion surrounding the iron core, provides a concrete pile manufacturing method and concrete pile construction method to facilitate the transport and installation of the concrete pile The purpose is to.

Concrete pile manufacturing method and concrete pile construction method according to the present invention, there is an object to provide a concrete pile manufacturing method and concrete pile construction method to purify the water quality, and to enable the habitat and scattering of aquatic organisms.

Concrete pile manufacturing method and concrete pile construction method according to the present invention, the preparation step (S100) to be installed so that the lower portion of the production body (110, 110 ') formed facing each other and the upper portion is exposed on the ground (S100); A steel wire connection step (S200) of installing a plurality of steel wires (100) on the production bodies (110, 110 ') having finished the preparation process (S100); A formwork step (S300) for installing the formwork 200 to surround the steel wires 100 installed through the steel wire heat-treating process (S200); A pouring process (S400) for pouring a ready-mixed concrete (150) onto the formwork (200) installed through the formwork process (S300); And dismantling the formwork 200 while curing the ready-mixed concrete 150 through the pouring process (S400) so that the ready-mixed concrete 150 becomes a pipe-shaped concrete pile 170 surrounding the steel wire 100. Curing process (S500) is included.

The pouring step (S400) is, by weight to 100% by weight in total, coarse aggregate containing steelmaking slag (particle diameter: more than 8mm 25mm or less): 42 to 52% by weight, small aggregate containing coal ash (particle size: 0.01 more than 8 mm or less): 16 to 30% by weight, cement: 10 to 17% by weight, water: 5 to 10% by weight, silicon dioxide: 1 to 4% by weight, polycarboxylate admixture: 0.1 to 0.4% by weight It includes a ready-mixed concrete manufacturing process (S410) for preparing the ready-mixed concrete composition 150 and the other unavoidable impurities.

The production body (110, 110 ') is formed and arranged to each other' ㅏ ',' ㅓ ', made of steel.

The preparation step (S100), after forming the inside of the production body (110, 110 ') is hollow, and includes a water injection step (S110) to partially fill the water therein.

The wire connection process (S200), through the through grooves 120, 120 'formed in the direction facing each other on the top of the production body (110, 110'), through the through groove 120, the Install the oil pressure unit 210 to apply a tensile force to the steel wire 100, install a tensile steel wire 220 which is disposed through the through groove 120 while being connected to the oil pressure 210, the tensile steel wire 220 It includes a tension preparation step (S210) for installing the tension plate 230 of the plate form to be connected to and fixed to the steel wire (100).

The steel wire connection process (S200), after the tensile preparation step (S210) is finished, by applying a tensile force to the steel wire 100 through the oil press 210, the tensile process to tension the steel wire 100 ( S220) is further included.

The formwork step (S300), the intaglio long groove 172 is formed on both sides of the concrete pile 170 is formed.

Drilling step (S600) of forming a punching groove 30 made by drilling the ground in the water by partially inserting the steel pipe case 10 vertically into the ground below the water using the pipe-shaped steel pipe case 10 ; In the inside of the steel pipe case 10 inserted into the drilling groove 30 through the drilling process (S600), the concrete pile 170 is formed in the longitudinal grooves 172 in the longitudinal direction on both ends of the edge portion facing each other. Inserting file inserting step (S700); After the concrete pile 170 is inserted into the steel pipe case 10 and disposed inside the drilling groove 30, the steel pipe case 10 surrounding the concrete pile 170 is drilled into the drilling groove 30. Separation process to leave from (S800); And placing the other concrete pile 170 'in a position adjacent to the concrete pile 170 by the above method, wherein the long grooves 172 and 172' respectively formed in different concrete piles 170 and 170 'are parallel to each other. After arranging to be formed in the position, the pile fixing process to pour the ready-mixed concrete 150 into the long grooves (172, 172 ') to be fixed to each other through the connection block 180 made by curing the different concrete piles (170, 170') (S900); includes.

The concrete pile 170, by weight percent with respect to 100% by weight in total, coarse aggregate containing steelmaking slag (particle diameter: more than 8mm 25mm or less): 42 to 52% by weight, small aggregate containing coal ash (particle size: 0.01 more than 8 mm or less): 16 to 30% by weight, cement: 10 to 17% by weight, water: 5 to 10% by weight, silicon dioxide: 1 to 4% by weight, polycarboxylate admixture: 0.1 to 0.4% by weight The ready-mixed concrete composition 150 composed of% and other unavoidable impurities is cured.

In the pile insertion process (S700), the lower portion is inserted into the ground, the lower portion of the concrete pile 170 is perforated, the upper portion is disposed to be exposed over the water surface.

The pile fixing process (S900), a plurality of concrete piles 170 are arranged side by side and interconnected through the connecting block 180 to form a wall, each concrete pile 170 inside the concrete pile 170 A plurality of steel wires 100 are disposed in the longitudinal direction of the wire.

The concrete pile 170 and the steel pipe case 10 is lifted and installed through a crane 70.

Concrete pile manufacturing method and concrete pile construction method according to the present invention, since the reinforcing bar prevents corrosion, and blocks the cracks and breakage of the concrete due to the expansion of the reinforcement, there is a technical effect that can extend the service life.

Concrete pile manufacturing method and concrete pile construction method according to the present invention, there is an economic effect that can reduce the cost by smoothly transporting and installing the concrete pile.

Concrete pile manufacturing method and concrete pile construction method according to the present invention, there is a technical effect to purify the water quality, the habitat and scattering of aquatic life is activated.

1 is a flow chart schematically showing a concrete pile manufacturing method according to the present invention.
Figure 2 is a conceptual diagram showing each step of the concrete pile manufacturing method according to an embodiment of the present invention.
3 is a flowchart schematically showing a concrete pile construction method according to the present invention.
Figure 4 is a conceptual diagram showing each step of the concrete pile construction method according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views, and length and area, thickness, and the like may be exaggerated for convenience.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

In the following detailed description, for example, the technical configuration of the concrete pile manufacturing method and concrete pile construction method [particularly, steel wire connection process, casting process] to increase the strength while lowering the weight through the concrete pile using steelmaking slag, the same Of course, it can be applied.

1 is a flow chart schematically showing a concrete pile manufacturing method according to the present invention.

Figure 2 is a conceptual diagram showing each step of the concrete pile manufacturing method according to an embodiment of the present invention.

1 and 2, a preparation process (S100) is performed in which a lower portion of the production bodies 110 and 110 ′ formed to face each other is accommodated on the ground and the upper portion is exposed on the ground.

In addition, a steel wire connection process (S200) of installing a plurality of steel wires (100) on the production body (110, 110 ') after the preparation process (S100) is performed.

In addition, the formwork process (S300) for installing the formwork 200 to surround the steel wires 100 installed through the steel wire thermal process (S200) is performed.

In addition, a pouring process (S400) of pouring the ready-mixed concrete 150 on the formwork 200 installed through the formwork process (S300) is performed.

Finally, while curing the ready-mixed concrete (150) through the pouring process (S400) to remove the formwork 200, the concrete concrete 170 of the tubular form that the ready-mixed concrete 150 wraps the steel wire 100 is Curing process (S500) to be performed is performed.

Preparation process ( S100 )

In the preparation step (S100), in order to increase the length of the steel wire 100 by applying tension to the steel wire 100, the thickness of the production body (110, 110 ') are disposed facing each other, Preparation work for connecting the steel wire 100 between the production body (110, 110 ') is performed.

At this time, the production body (110, 110 ') is formed and arranged to each other' ㅏ ',' ㅓ ', made of steel.

Specifically, the lower part of the production body (110, 110 ') is inserted into the ground and the upper portion is exposed on the ground, when the production line (110, 110') when the tension of the steel wire 100 in the production body, This prevents 110 and 110 'from flowing.

In addition, the preparation step (S100), after forming the inside of the production body (110, 110 ') is hollow, and includes a water injection step (S110) to partially fill the water inside.

Since the interior of the production body (110, 110 ') is formed to be hollow, the weight of the production body (110, 110') is minimized, the transport and installation of the production body (110, 110 ') smoothly To be possible.

In the water injection process (S110), after the production body (110, 110 ') is placed in the set position, by injecting water into the production body (110, 110'), the production body (110, 110) ') Is a process to be firmly fixed to the ground.

Steel wire connection process S200 )

In the steel wire connection step (S200), after connecting a plurality of the steel wires 100 to the production body (110, 110 ') disposed to face each other, the operation of applying a tensile force to the steel wire (100) is performed.

That is, the steel wire connection process (S200) is a process of applying a tensile force to the steel wire 100 to make the thickness thin while lengthening the length of the steel wire 100.

To this end, in the steel wire connection process (S200), a tension preparation process (S210) is installed in which the components to apply a tensile force to the steel wire 100 to the production body (110, 110 ') is performed.

In detail, in the tensile preparation process (S210), the through grooves 120 and 120 'are formed on the upper parts of the production bodies 110 and 110' to face each other.

Subsequently, the production body (110, 110 '), the oil pressure 210 to apply a tensile force to the steel wire 100 is respectively installed.

Here, the oil pressure 210, respectively, on the production body 110, 110 ′ so as to be connected to a plurality of tensile steel wires 220 connected to the plurality of steel wires 100 through the through groove 120. Is placed.

That is, the plurality of tensile steel wire 220 is connected to the oil press 210 and the steel wire 100 while passing through the through groove 120.

In this case, the oil press 210 may be used in various ways, such as hydraulic pressure or pneumatic pressure if it can apply a tensile force to the steel wire 100, according to the user's needs.

In addition, a plate-like tension plate 230 is installed at a portion connected to the steel wire 100 of the tensile steel wire 220.

The tension plate 230, the tensile steel wire 220 is connected to and fixed to the steel wire 100, while the tensile force is applied to the steel wire 100, on the production body (110, 110 ') It will flow.

In this way, when the tension preparation process (S210) is finished, the tensioner (S220) is performed so that the oil press 210 to apply the tensile force to the steel wire 100, so that the steel wire 100 is tensioned.

In the tensile process (S220), by applying a tension to the steel wire 100 is made to work to make the thickness thinner while increasing the length of the steel wire (100) directly.

Forming process ( S300 )

In the formwork step (S300), the formwork 200 is installed while surrounding the steel wires 100 to which tensile force is applied through the steel wire connection step (S200).

The formwork 200 is a preparatory process for allowing the concrete pile 170 to be completed while curing the concrete (150) to enter into the formwork 200 after surrounding the steel wires (100).

At this time, in the formwork step (S300), when the concrete pile 170 is cured, the formwork 200 is installed so that the intaglio long grooves 172 are formed on both sides of the edge of the concrete pile 170.

That is, the long groove 172 is formed in the longitudinal direction of the concrete pile 170, when viewed from the cross section of the concrete pile 170, intaglio formation so as to face each other on both sides of the edge of the concrete pile 170 Will be.

In particular, the concrete pile 170, when viewed from the cross-section, the long groove 172 is formed to correspond to each other on the edge portion of the concrete pile 170, the center of the concrete pile 170 is perforated It may be formed in a closed state or a blocked state.

In other words, the center of the concrete pile 170, the drilling mill groove 174 can be formed along the longitudinal direction of the concrete pile 170.

In this way, the cloth mill groove 174, by lowering the weight of the concrete pile 170, to perform a function to facilitate the lifting and installation of the concrete pile 170.

In addition, the concrete pile 170, a plurality of the steel wire 100 is accommodated in the longitudinal direction of the concrete pile 170.

Through the steel wire 100, the strength of the concrete pile 170 can be increased.

When the formwork step (S300) is completed in this way, a pouring process (S400) is performed in which the ready-mixed concrete (150) is poured into the formwork (200).

Pour process S400 )

The pouring process (S400) is. As mentioned above, the ready-mixed concrete 150 is poured into the formwork 200.

At this time, the pouring step (S400), by weight percent with respect to the total 100% by weight, coarse aggregate containing steelmaking slag (particle diameter: more than 8mm 25mm or less): 42 to 52% by weight, small aggregate containing the coal ash (particle diameter : 0.01 mm or more and 8 mm or less): 16 to 30% by weight, cement: 10 to 17% by weight, water: 5 to 10% by weight, silicon dioxide: 1 to 4% by weight, polycarboxylate admixture: 0.1 to It includes a ready-mixed concrete manufacturing process (S410) for producing the ready-mixed concrete composition 150, 0.4 wt% and other unavoidable impurities.

The ready-mixed concrete 150 manufactured through the ready-mixed concrete manufacturing process (S410), SCS concrete is preferably used.

In the present invention, "SCS" of SCS concrete stands for "Steel-slag Coal-cinder SiO ₂ ".

Referring to the ready-mixed concrete composition 150 according to an embodiment of the present invention, steel slag is largely divided into blast furnace slag and steelmaking slag.

Generally, blast furnace slag is 40 to 45% by weight of CaO, 34 to 36% by weight of SiO ₂ , 15 to 17% by weight of Al ₂ O ₃ , 5 to 8% by weight of MgO, 0.5 to 2% by weight of Fe ₂ O ₃ , SO ₃ It has a composition of 0.1 to 1% by weight.

Such blast furnace slag is used as a raw material for cement because it does not expand, and because of the long-term strength is good due to the hydraulic property of the aggregate, it is also used for composite aggregates for auxiliary bases with steelmaking slag during road construction.

As such, blast furnace slag has a disadvantage of being expensive due to its many uses. However, steelmaking slag has a relatively low use purpose and is rather assisting treatment costs or transportation costs.

The steelmaking slag is divided into electric steelmaking slag and steelmaking slag and can be divided into coarse aggregate and small aggregate according to the thickness of the aggregate.

The furnace steel slag refers to the slag generated in the process of melting the iron to make iron, and the steelmaking slag extracts iron from iron ore and the remaining slag is steelmaking slag.

The steelmaking slag does not expand, but the steelmaking slag is generated a lot, generally 37 to 47% by weight of CaO, 11 to 16% by weight of SiO ₂ , 1.0 to 2.0% by weight of Al ₂ O ₃ , MgO 5 to 8 Since the composition has a composition of weight%, Fe ₂ O ₃ 18 to 30 weight%, and SO ₃ 0.01 to 0.1 weight%, expansion occurs.

Therefore, the steelmaking slag cannot be used as aggregate for concrete without solving the problem of expansion.

The problem with the expansion is the biggest obstacle factor that has caught the ankle to prevent the widespread use of aggregates with many advantages of steelmaking slag.

Here, in order to be able to use the steelmaking slag in reinforced concrete and high-strength concrete, the volume expansion ratio of the steelmaking slag may be aged to 0.2% or less.

The method of aging the steelmaking slag may be any one selected from the group consisting of natural aging, natural precipitation aging, hot water curing, steam curing, seawater curing, and a combination thereof.

However, the seawater curing method is not available for reinforced concrete, it can be used only for bare concrete.

The natural aging may be to sprinkle and naturally mature the steelmaking slag in the yard at least 90 days at room temperature.

The natural precipitation aging may be to immerse the steelmaking slag in precipitation for 60 days or more.

The hot water curing method may be to immerse the steelmaking slag by immersing the steelmaking slag in hot water of 60 ℃ or more for 30 days or more.

The steam curing method may be to mature the steelmaking slag for at least two days in a steam room of 100 ℃ or more.

The seawater curing method may be to spray the seawater with a salt concentration of 34.01 ‰ to 43.00 ‰ to the steelmaking slag.

However, the seawater curing method can be used only for bare concrete because it may cause cracking and breakage of concrete due to corrosion and expansion of reinforcing steel when used in reinforced concrete.

Next, the coarse aggregate containing the aged steelmaking slag (particle diameter: more than 8mm 25mm or less) 42 to 52% by weight, small aggregate containing coal ash (particle size: more than 0.01mm 8mm or less) 16 to 30% by weight, cement 10 To 17 wt%, 5 to 10 wt% of water, 1 to 4 wt% of silicon dioxide, and 0.1 to 0.4 wt% of a polycarboxylate admixture may be mixed to prepare the ready-mixed concrete 150.

At this time, when the particle diameter of the steelmaking slag is less than 8mm or more than 25mm, the strength of the concrete may be reduced.

In addition, when the content of the coarse aggregate is less than 42% by weight or more than 52% by weight, the strength of the concrete may be reduced.

When the particle size of the small aggregate including the coal ash is more than 8mm, or the content is less than 16% by weight, the size of the through hole is increased to form voids, thereby reducing the concrete strength, the content of which exceeds 30% by weight In this case, there is no armature, but only a lot of flesh can reduce the strength of the concrete.

When the coal ash is used as the small aggregate, the weight is 38% by weight or more lighter than sand, and thus the transportation cost is greatly reduced.

Meanwhile, the steelmaking slag may preferably use a unit weight of 1810 to 1940 kg / m 3 and an absorption rate of 1.2 to 1.8 wt%, and the coal ash may preferably use a unit weight of 940 to 1020 kg / m 3.

The ready-mixed concrete 150 has high weight properties of the steelmaking slag that is heavier than sand (about 1,450 kg / m 3) and gravel (about 1,500 kg / m 3) and sand (about 1,450 kg / m 3) and gravel (about 1,500 kg / m 3) Using lighter weight of lighter coal ash, it is possible to control heavy concrete and lighter weight concrete than the weight of general concrete (2.3 ton / ㎥).

In addition, the small aggregate may further include an aged steelmaking slag having a particle diameter of more than 1 mm and less than 8 mm.

In this case, the weight ratio of the steelmaking slag and the coal ash may be 64:36 to 57:43.

The steelmaking slag may have a unit weight of 1950 to 2050kg / m 3 and an absorption rate of 1.5 to 2.0% by weight.

The cement may be any one selected from the group consisting of portland cement, blast furnace slag cement, fly ash, and combinations thereof.

The blast furnace slag cement may include 25 to 64% by weight of Portland cement, 25 to 64% by weight fine powder of blast furnace slag, 5 to 15% by weight of fly ash and 0.1 to 2% by weight of slaked lime.

When the content of the cement is less than 10% by weight concrete strength may be reduced, when the content of more than 17% by weight the concrete strength may be strong but the manufacturing cost may be expensive.

The water may preferably be water that does not contain harmful foreign substances such as oils, acids, salts, organics, and the like. When the content of the water is less than 5% by weight mixing failure may occur, when the content of more than 10% by weight may increase the slump value, deterioration in quality and increase curing time.

The silicon dioxide may increase the bonding strength between steelmaking slag, coal ash and cement to express the high strength of the concrete.

When the content of silicon dioxide is less than 1% by weight, the strength is low and more expensive cement should be used more and more than 4% by weight, due to the excessive use of SiO _{2, which} is more expensive than steelmaking slag and coal ash, without any particular strength difference. Manufacturing costs may rise.

As the admixture, polycarboxylate may be preferably used. The polycarboxylate admixture serves to increase premature strength in the SCS concrete composition including steelmaking slag and coal ash.

The ready-mixed concrete composition 150 may be used by pouring a mixture into a mold made of structural shapes of marine civil concrete, sofa block, artificial reef, vegetation block, caisson, PC pile and PHC pile.

In the present invention, it is cured by a pipe-shaped concrete pile 170 formed while wrapping a plurality of the steel wire 100, a plurality of concrete piles 170 are made of concrete piles arranged in parallel with each other to be used for revetment work, etc. Will be.

After the ready-mixed concrete 150 is poured into the formwork 200, a curing process (S500) to be cured by the concrete pile 170 is performed.

Curing Process S500 )

The curing process (S500), while the ready-mixed concrete 150 is cured, the process to remove the formwork 200 so that the ready-mixed concrete 150 is a pipe-shaped concrete pile 170 surrounding the steel wire (100) to be.

As the ready-mixed concrete 150 becomes the concrete pile 170, the formwork 200 surrounding the concrete pile 170 is demoulded.

At this time, the curing method may be made in the same manner as conventional concrete curing.

Hereinafter, an embodiment of the present invention will be described.

[ Experimental Example 1: strength measurement experiment]

To prepare a SCS concrete composition according to the Examples and Comparative Examples by mixing the composition as shown in Table 1, and then cast it on the formwork to complete the pile, caisson, artificial reefs, curing and demoulding to prepare a concrete structure. Compressive strength (KS F 2405) and flexural strength (KS F 2408) were measured according to the method for the concrete structure, and the results are shown in Table 2 below.

20-80-20
(file) 20-27-120
(Caisson) 25-21-80
(Artificial fish) Example 1 Comparative Example 1 Example 2 Comparative Example 2 Example 3 Comparative Example 3 Slag ¹¹⁾
(8 ~ 25mm) 1182.00 - 1257.00 - 1287.00 - Slag ²²⁾
(0 ~ 8mm) - - - - - - Coarse aggregate crushed stone
(4 ~ 25mm) - 1113.00 - 911.00 - 979.00 Fine Aggregate Natural History
(0 ~ 8mm) - 570.00 - 792.00 - 835.00 Coal ash ³ ⁾
(0 ~ 8mm) 623.00 - 671.00 - 717.00 - cement
(p / c, s / c) 343.00 350.00 341.00 339.00 272.00 263.00 Fly ash - - 60.00 60.00 48.00 46.00 SiO ₂ 70.00 72.00 70.00 - 70.00 - water 143.00 189.00 159.00 171.00 154.00 159.00 Admixtures ⁴ ⁾ 6.20 6.33 4.01 3.99 3.20 3.09 Gross weight 2367 2300 2562 2277 2551 2285

(Unit: kg)

1) Steelmaking slag 1: The unit weight is 1810 to 1940 kg / ㎥ and the water absorption is 1.2 to 1.8% by weight.

2) Steelmaking slag 2: The unit weight is 1950 to 2050kg / m 3 and the water absorption is 1.5 to 2.0% by weight.

3) Coal Ash: Unit weight is 940 to 1020 kg / m 3.

4) Admixture: polycarboxylate

20-80-20
(file) 20-27-120
(Caisson) 25-21-80
(Artificial fish) Example 1 Comparative Example 1 Example 2 Comparative Example 2 Example 3 Comparative Example 3 Compressive strength
(MPa) 101.20
101.90
100.60 99.50
100.40
99.80 31.10
31.40
31.00 29.70
30.50
29.90 25.60
24.80
25.10 24.30
23.90
24.20 Flexural strength
(MPa) 10.18
10.35
10.87 10.51
9.99
10.26 2.98
3.12
3.04 2.89
2.97
2.93 2.34
2.41
2.38 2.32
2.29
2.27

Even in the case of compressive strength and flexural strength, it can be seen that the embodiment is superior to the comparison.

[ Experimental Example 2: seaweed Biomass Measurement experiment]

The seaweed biomass was measured for the concrete structure prepared in Example 1 of Table 1, the concrete structure using the blast furnace slag (Comparative Example 4) and the concrete structure according to the domestic KS standard (Comparative Example 5), and the results are shown in the following table. 3 is shown.

Example 1 Comparative Example 4 Comparative Example 5 Seaweed
Survival rate (%) per unit area (㎠) Apoche 28 25 17 Latex 18 14 9 Number of applicants per unit area (㎠) of seaweed 15 12 9

Referring to Table 3, it can be seen that the biomass of the algae is excellent in the case of the example compared to the case of the comparative example.

3 is a flowchart schematically showing a concrete pile construction method according to the present invention.

Figure 4 is a conceptual diagram showing each step of the concrete pile construction method according to an embodiment of the present invention.

Referring to Figure 3 and Figure 4, by using the pipe-shaped steel pipe case 10 by inserting the steel pipe case 10 vertically to the ground below the water, the drilling groove 30 was made by drilling the ground of the water A puncturing process (S600) to form a.

And. In the inside of the steel pipe case 10 inserted into the drilling groove 30 through the drilling process (S600), the concrete pile 170 is formed in the longitudinal grooves 172 in the longitudinal direction on both ends of the edge portion facing each other. Inserting file insertion process (S700) is performed.

In addition, after the concrete pile 170 is inserted into the steel pipe case 10 is disposed in the interior of the drilling groove 30, the steel pipe case 10 surrounding the concrete pile 170, the drilling groove ( Separation process (S800) for leaving in 30 is performed.

Finally, by placing the other concrete pile 170 'in a position adjacent to the concrete pile 170, the long grooves (172, 172') formed in each of the different concrete pile (170, 170 ') is After arranging to be formed in parallel positions with each other, by pouring the ready-mixed concrete 150 in the long grooves (172, 172 ') to allow the different concrete piles (170, 170') to be fixed to each other through the connecting block 180 The fixing process S900 is performed.

Drilling process S600 )

The drilling step (S600), by using the pipe-shaped steel pipe case 10 by partially inserting the steel pipe case 10 vertically to the ground below the water, the drilling groove 30 was made by drilling the ground in the water Forming process.

In the drilling process (S600), the steel pipe case 10 may be partially inserted into the ground, and the drilling groove 30 may be formed by drilling the ground through the inside of the steel pipe case 10.

In addition, the drilling step (S600) may have a sequence of vertically inserting the pipe-shaped steel pipe case 10 in the longitudinal direction in the drilling groove 30 made by drilling the ground in the water according to the situation.

At this time, the steel pipe case 10, and the function of smoothly forming the perforated groove 30 in the ground of the water, and the concrete pile 170 through the inside of the steel pipe case 10 formed in the form of the To perform a function that can be smoothly installed in the drilling groove (30).

Here, the steel pipe case 10 is lifted through the crane 70 is installed in the vertical direction, which is the longitudinal direction of the steel pipe case 10 in a standing state in the drilling groove (30).

At this time, the steel pipe case 10, the lower portion is entered into the drilling groove 30, the upper portion is disposed to be exposed on the water surface.

The steel pipe case 10 is formed in the form of a tube made of steel, the inner diameter of the steel pipe case 10 is formed larger than the outer diameter of the concrete pile 170.

File Insertion Process S700 )

The pile insertion step (S700), after the drilling step (S600) is completed, the concrete pile 170 is inserted into the inside of the steel pipe case 10 through the upper portion of the steel pipe case 10 is formed exposed to the water surface. It is a process to do it.

Similarly, the concrete pile 170 is lifted through the crane 70 and inserted into the steel pipe case 10, and as a result, a lower portion is inserted into the perforated groove 30.

That is, the concrete pile 170 is fixed to the ground while the lower portion enters the drilling groove 30, the upper portion is disposed to be exposed over the water surface.

Here, the concrete pile 170, by weight percent with respect to the total 100% by weight, coarse aggregate containing steelmaking slag (particle diameter: more than 8mm 25mm or less): 42 to 52% by weight, small aggregate containing coal ash (particle diameter : 0.01 mm or more and 8 mm or less): 16 to 30% by weight, cement: 10 to 17% by weight, water: 5 to 10% by weight, silicon dioxide: 1 to 4% by weight, polycarboxylate admixture: 0.1 to The ready-mixed concrete composition 150, which is composed of 0.4 wt% and other unavoidable impurities, is cured.

Description of the composition of the concrete pile 170, because it is mentioned above will not be repeated description here.

Separation process S800 )

The separating step (S800), in the pile insertion step (S700), the steel pipe case 10 is inserted into the inside of the concrete pile 170 is vertically established while the lower portion enters the drilling groove 30 It is a process of leaving the steel pipe case 10.

That is, the concrete pile 170, while the lower portion is fixed while entering the inside of the drilling groove 30, the steel pipe case 10 is maintained in the erected state so that the upper portion is exposed to the water surface, the drilling groove 30 At the same time it will be separated from the concrete pile 170 will be separated.

In this case, the steel pipe case 10 is lifted through the crane 70 to be separated from the concrete pile 170.

As mentioned above, the center of the concrete pile 170, the drilling mill groove 174 can be formed along the longitudinal direction of the concrete pile 170.

Pile fixing process S900 )

The pile fixing step (S900) is a process in which the plurality of concrete piles (170, 170 ') are arranged side by side while being in close contact with each other, while being firmly fixed to each other while the method is repeated.

In detail, the pile fixing process (S900), the steel pipe case 10 is separated from the concrete pile 170 so as to form another drilling groove 30 side by side in the adjacent position of the concrete pile 170. The process using) is repeated.

Subsequently, another concrete pile 170 'is inserted into the steel pipe case 10 disposed in the drilling groove 30, and the long grooves 172 and 172' respectively formed in the different concrete piles 170 and 170 'are formed. After being arranged to be formed in parallel with each other, the steel pipe case 10 is separated from the drilling groove (30).

In addition, by pouring the ready-mixed concrete 150 into the long grooves 172 and 172 'of the concrete piles 170 and 170' arranged side by side, the different concrete piles 170 and 170 'are fixed to each other.

At this time, the ready-mixed concrete 150, using the same composition as the concrete pile 170 composition.

Particularly, when the ready-mixed concrete 150 is poured into the long grooves 172 and 172 ', the connection block 180 is completed.

The connection block 180 is a long groove 172, 172 'of each of the different concrete piles 170, 170' arranged side by side in a state in which a plurality of different concrete piles 170, 170 'are in close contact. ) To be accommodated so that different concrete piles (170, 170 ') can be firmly fixed to each other.

Thus, a plurality of concrete piles 170 are arranged side by side and are connected to each other through the connecting block 180 to form a wall, each of the plurality of concrete piles 170 in the longitudinal direction of the concrete pile 170 The steel wire 100 is to be disposed.

As a result, different concrete piles (170, 170 ') are arranged side by side to form a wall, to form a relief structure on the shoreline, it is possible to protect the riverbank, banks against erosion.

Then, the concrete pile (170, 170 '), to prevent the erosion by the running water of the river, and to perform the function of preventing turbulence in the bank of the bank and the reservoir.

Through the above method, the reinforcing bar prevents corrosion and blocks the cracking and breakage of the concrete due to the expansion of the reinforcing bar, thereby extending its service life.

And, there is an economic advantage that can smoothly transport and install the concrete pile, thereby reducing the cost.

In addition, it is possible to obtain the advantages of purifying the water quality and the activation and spawning of the aquatic organisms.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the scope of the present invention.

Therefore, the spirit of the present invention should not be construed as being limited to the above-described embodiments, and all of the equivalents or equivalents of the claims, as well as the following claims, I will say.

10: steel pipe case 30: perforated groove
70: crane
100: steel wire
110, 110 ': Body 120, 120': Through groove
150: ready-mixed concrete
170, 170 ': Concrete pile 172, 172': Long groove
174, 174 ': Cheon Factory Home
180: connection block
200: Form
210: oil press 220: tensile steel wire
230: tension plate
S100: Preparation Process S110: Water Injection Process
S200: Steel wire connection process S210: Tension preparation process
S220: Tension Process
S300: Formwork Process
S400: pouring process S410: ready-mixed concrete manufacturing process
S500: Curing process S600: Drilling process
S700: File Insertion Process S800: Separation Process
S900: File fixing process

Claims

A preparation step of installing the lower parts of the production bodies 110 and 110 ′ which are formed to face each other and are accommodated on the ground and the upper parts are exposed on the ground (S100);
A steel wire connection step (S200) of installing a plurality of steel wires (100) on the production bodies (110, 110 ') having finished the preparation process (S100);
A formwork step (S300) for installing the formwork 200 to surround the steel wires 100 installed through the steel wire heat-treating process (S200);
A pouring process (S400) for pouring a ready-mixed concrete (150) onto the formwork (200) installed through the formwork process (S300); And
Curing the formwork 200 while curing the ready-mixed concrete 150 through the pouring process (S400) so that the ready-mixed concrete 150 is a tube-shaped concrete pile 170 surrounding the steel wire 100 Concrete pile manufacturing method comprising the step (S500).

The method of claim 1,
The pouring process (S400),
Coarse aggregate (particle size: more than 8 mm and 25 mm or less): 42 to 52 wt%, small aggregate containing coal ash (particle size: 0.01 mm or more and 8 mm or less): 16 to 16% by weight, based on 100% by weight in total. 30 wt%, cement: 10-17 wt%, water: 5-10 wt%, silicon dioxide: 1-4 wt%, polycarboxylate admixture: 0.1-0.4 wt% and other unavoidable impurities Concrete pile manufacturing method comprising a ready-mixed concrete manufacturing process (S410) for manufacturing the ready-mixed concrete (150).

The method of claim 1,
The production body (110, 110 '),
Concrete pile manufacturing method characterized in that formed and arranged in 'ㅏ', 'ㅓ' mutually made of steel.

The method of claim 1,
The preparation step (S100),
Forming the interior of the production body (110, 110 ') to be hollow, concrete pile manufacturing method comprising a water injection process (S110) to partially fill the water inside.

The method of claim 1,
The wire connection process (S200),
An oil press forming through-holes 120 and 120 'which are penetrated in a direction facing each other on the upper parts of the manufacturing bodies 110 and 110', and applying a tensile force to the steel wire 100 through the through-holes 120. Install 210, install a tensile steel wire 220 which is disposed to penetrate the through groove 120 while being connected to the oil pressure 210, the tensile steel wire 220 is interconnected with the steel wire 100 Concrete pile manufacturing method comprising a tension preparation step (S210) for installing a plate-shaped tension plate 230 to be fixed.

6. The method of claim 5,
The wire connection process (S200),
After the tensile preparation process (S210) is finished, by applying a tensile force to the steel wire 100 through the hydraulic unit 210, the concrete pile manufacturing further comprises a tensile process (S220) to tension the steel wire (100) Way.

The method of claim 1,
The formwork step (S300),
Concrete pile manufacturing method characterized in that the inclined long groove 172 is formed on both sides of the concrete pile 170.

Drilling step (S600) of forming a punching groove 30 made by drilling the ground in the water by partially inserting the steel pipe case 10 vertically into the ground below the water using the pipe-shaped steel pipe case 10 ;
In the inside of the steel pipe case 10 inserted into the drilling groove 30 through the drilling process (S600), the concrete pile 170 is formed in the longitudinal grooves 172 in the longitudinal direction on both ends of the edge portion facing each other. Inserting file inserting step (S700);
After the concrete pile 170 is inserted into the steel pipe case 10 and disposed inside the drilling groove 30, the steel pipe case 10 surrounding the concrete pile 170 is drilled into the drilling groove 30. Separation process to leave from (S800); And
Place the other concrete pile 170 'in a position adjacent to the concrete pile 170 by the above method, the long grooves (172, 172') formed in each of the different concrete piles 170, 170 'are parallel to each other After arranging to be formed in the pile groove (172, 172 ') by pouring the ready-mixed concrete 150 to the concrete block (170, 170') is fixed to each other through the connection block 180 by curing ( S900); concrete pile construction method comprising a.

The method of claim 8,
The concrete pile 170,
Coarse aggregate (particle size: more than 8 mm and 25 mm or less): 42 to 52 wt%, small aggregate containing coal ash (particle size: 0.01 mm or more and 8 mm or less): 16 to 16% by weight, based on 100% by weight in total. 30 wt%, cement: 10-17 wt%, water: 5-10 wt%, silicon dioxide: 1-4 wt%, polycarboxylate admixture: 0.1-0.4 wt% and other unavoidable impurities Concrete pile construction method characterized in that the ready-mixed concrete composition (150).

The method of claim 8,
The file insertion process (S700),
The lower portion of the concrete pile 170, the lower portion is inserted into the ground, the concrete pile construction method characterized in that the upper portion is disposed to be exposed over the water surface.

The method of claim 8,
The pile fixing step (S900),
A plurality of concrete piles 170 are arranged side by side and are connected to each other through the connecting block 180 to form a wall, each of the plurality of steel wires in the longitudinal direction of the concrete pile 170 inside the concrete pile 170 ( Concrete pile construction method characterized in that the arrangement.

The method of claim 8,
The concrete pile 170 and the steel pipe case 10,
Concrete pile construction method characterized in that the lifting and installation through the crane (70).