KR20130019615A - Concrete pile and how to make it - Google Patents

Concrete pile and how to make it Download PDF

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Publication number
KR20130019615A
KR20130019615A KR1020110081687A KR20110081687A KR20130019615A KR 20130019615 A KR20130019615 A KR 20130019615A KR 1020110081687 A KR1020110081687 A KR 1020110081687A KR 20110081687 A KR20110081687 A KR 20110081687A KR 20130019615 A KR20130019615 A KR 20130019615A
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KR
South Korea
Prior art keywords
plate
steel wire
nut
concrete
bolt
Prior art date
Application number
KR1020110081687A
Other languages
Korean (ko)
Inventor
추만엽
Original Assignee
추만엽
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 추만엽 filed Critical 추만엽
Priority to KR1020110081687A priority Critical patent/KR20130019615A/en
Publication of KR20130019615A publication Critical patent/KR20130019615A/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/72—Pile shoes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder
    • E02D2300/002—Concrete
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0026—Metals
    • E02D2300/0029—Steel; Iron
    • E02D2300/0034—Steel; Iron in wire form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

PURPOSE: A concrete pile and a manufacturing method thereof are provided to firmly combine a plate and a pile body using a bolt and a nut and to solidify welding between concrete piles. CONSTITUTION: A concrete pile includes more than one steel wire(1), a nut(2) a body(3), a plate(4) and a bolt(6). The nut is inserted to the steel wire not to come off. The body is formed around the steel wire with concrete. The plate is formed in one side of the body. The bolt is combined with the nut after penetrating a hole(5) and is not exposed to the outside after completely being combined with the nut. The hole has a tapered inclined surface(5a). The head unit of the bolt is inclined to correspond to the inclined surface.

Description

Concrete pile and how to make it

The present invention relates to a concrete pile and a method of manufacturing the same, and more specifically, the concrete pile according to the present invention is fitted with a nut in a steel wire during curing of the concrete used in the pile production, and a plurality of holes are formed on the side in contact with the nut. The plate is fastened by bolts, and the holes formed in the plate are tapered or bolt seats are formed so that the bolts can be completely inserted to firmly weld the concrete piles, and the plate and the body are firmly coupled by bolts. It is a concrete pile and its manufacturing method which can maintain the finished state.

In general, concrete piles serve as a foundation to support the structures to be constructed in underground rocks during construction or civil engineering.The concrete piles are piled through the ground to be supported by the underground rocks in the foundation process and then connected to the top of each pile. When concrete is poured, it is used to construct the floor of the building and to build the building based on the floor.

These concrete piles are driven by one or two or more welds depending on the location of the pile. This is because the shape of the rock under the ground is irregular, so that the piles are welded and driven to secure the pile.

This is because the size of the concrete pile that can be produced or transported is limited, so the length is used by welding, etc. according to the situation of the site.

Conventional concrete piles use a cap called Mamirashu for the part that is embedded in the ground and the head part uses a cap having a different shape from Mamirashu. This mamirache has the form disclosed in patent 10-0944620 and is shown in FIG.

The joint cap illustrated in FIG. 1 has an upper cap 200 and a lower cap 100 formed separately, and a guide 213 protruding from the upper cap 200 is immersed in the lower cap 100. Guides 113 are formed, respectively. In addition, the upper and lower caps 100 and 200 are both formed with '8' shaped connecting holes 112 and 212 along the plates 110 and 210.

Such a conventional joint cap first requires a high processing cost for forming the connecting holes 112 and 212 in the plates 110 and 210. In addition, the connection holes 112 and 212 are fastened to the steel wire to be described later, and the steel wire is fitted in a state of being tensioned with considerable force, so that a part of the connection holes 112 and 212 should remain flesh, and the flesh portion is also a steel wire It should be thick enough to withstand the contractile force.

As a result, the thickness of the plate (110, 210) should be basically thick, thereby increasing the material cost, and along with the processing cost of the connection hole (112, 212) also increases the manufacturing cost of the joint cap is natural.

Furthermore, since the upper cap 200 and the lower cap 100 must be manufactured in separate forms, each cap must be secured, and the upper cap 200 and the lower cap have separate head caps and caps called Mamirashu. There are many problems, such as the burden of inventory, an increase in production costs, and an increase in logistics costs.

In order to solve this problem, Utility Model Registration No. 366038 proposes a cap coupling structure of a concrete pile and is shown in FIGS. 2 to 3.

The cap coupling structure of the conventional concrete piles proposed in FIGS. 2 to 3 has an upper head cap 1 and a lower shoe 10 coupled to each other by a steel bar 50. A through hole 3 is formed at the center of the plate, and at its periphery, a plate 2 having a circular coupling hole 5, 5 ′ is formed, and a reinforcing ring 4 is attached to the periphery of the plate 2 to a thin plate. The shoe 10 is integrally formed by the plate 12, and the reinforcing ring 14 is integrally formed by the thin plate body at the periphery of the plate 12. In the steel bar coupling holes 5, 5 ', 15, and 15' of the plates 2 and 12, a plurality of nut bodies 21, 21 'and bolts 22 ( 22 ') is characterized in that the steel bar 50 is connected up and down.

The biggest problem of this type of concrete pile is that there is no big problem when only one pile is embedded in the ground, but when two or more piles are used by welding, there is a fundamental problem that the bond strength between piles is weak. .

That is, since the plate 2 is formed only by inserting the end of the concrete pile, when the two piles are welded and the upper pile of the welded piles is lifted, there is a fear that the two piles are separated by the cap.

In addition, in the case of a concrete pile usually weighs 1 to 6 tons, such a shape of the plate can not afford the weight of more than 1 tonne can not but fall out of the pile.

As a result, in order to weld the concrete pile, the plate 2 and the plate 2 should be welded in a completely contacted state. Therefore, the bolt body 22 must be loosened as shown in FIG. 3 and the plate 2 is welded in this state. Since the pile is fitted without a separate fastening member, the coupling force between the pile and the plate is weakened.

Even if the pile is put into the ground in this state, if the ground shakes due to an earthquake or the like, the force acts in the radial direction of the pile, causing the plate to fall out of the pile rather than the welded joint, which may break the bond between the concrete piles and collapse the structure. There is.

Therefore, the present invention uses a bolt and a nut to secure the coupling of the plate and the pile body, thereby welding the two piles to each other, and then the concrete pile is not separated from the pile unless the weld is dropped even if you lift and hold one pile And its purpose is to provide a manufacturing method.

In addition, there is no need for a plate having a '8' shaped groove (peanut-shaped) compared to the conventional pile, thereby reducing the production cost and reducing the thickness of the plate, thereby providing a concrete pile and a method of manufacturing the same, which can reduce material costs. There is another purpose.

Concrete pile according to the present invention is a nut through one or more steel wire, the nut is inserted so as not to fall out of the steel wire, a body formed of concrete around the steel wire, a plate formed on one side of the body, the hole formed in the plate It is configured to include a bolt coupled to the bolt, the bolt is formed so as not to be exposed to the outside of the plate after being fully fastened to the nut, the hole is tapered, the head portion of the bolt is formed to be inclined to correspond to the tapered groove .

The concrete pile according to the present invention uses bolts and nuts to secure the coupling of the shoe cap and the pile body, thereby welding the two piles to each other and then holding the single pile and lifting the plate so that the plate does not separate from the pile unless the weld falls. Since the plate having the '8' shaped grooves is not required as compared to the conventional file, the manufacturing cost is reduced and the thickness of the plate can be reduced, thereby reducing the material cost.

1 is a configuration example of a conventional pile cap
2 to 3 is a configuration example of another conventional pile cap
4 is a structural example of the present invention
5 is an exemplary view of a part of the present invention
6 is an enlarged view of a portion of FIG. 5;
Figure 7 is another exemplary embodiment of the present invention
8 is an enlarged view of a portion of FIG. 7;
9 is an exemplary state of use of the present invention
10 is a manufacturing process of the concrete pile according to the present invention
Figure 11 is a state of completing the plate bonding step according to the present invention
12 is another manufacturing process of the concrete pile according to the present invention
13 is an explanatory diagram of a mold bonding step

The present invention relates to a concrete pile and a method of manufacturing the same, and more specifically, the concrete pile according to the present invention is fitted with a nut in a steel wire during curing of the concrete used in the pile production, and a plurality of holes are formed on the side in contact with the nut. The plate is fastened by bolts, and the holes formed in the plate are tapered or bolt seats are formed so that the bolts can be completely inserted to firmly weld the concrete piles, and the plate and the body are firmly coupled by bolts. It is a concrete pile and its manufacturing method which can maintain the finished state.

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

4 is an exemplary view of the configuration of the present invention and FIG. 5 is an exemplary view of a partial configuration of the present invention. In the present invention, the concrete pile is fitted with at least one steel wire 1 and the steel wire 1 so as not to fall out. Penetration through the nut (2), the body (3) formed of concrete around the steel wire (1), the plate (4) formed on one side of the body (3), and the hole (5) formed in the plate (4) And a bolt 6 coupled to the nut 2, which is not exposed to the outside of the plate 4 after the bolt 6 is fully fastened to the nut 2, and the hole 5. The tapered inclined surface 5a is formed, and the head part of the bolt 6 is inclined so as to correspond to the inclined surface 5a.

First, the steel wire (1) serves as a skeleton for the formation of the body (3) to be described later it is preferable that the curing is made in a straightened state by stretching on both sides before the concrete is poured into the mold.

The outer end 1a of the steel wire has an outer diameter extended by a riveting device (heading device) to prevent the nut 2 from falling out of the steel wire, and the body 3 is formed by concrete around the steel wire 1. do. Plate 4 is formed on one side of the body 3, the plate 4 plays the same role as the shoe or shoe cap of a conventional concrete pile.

A hole 5 is formed in the plate 4, through which the bolt 6 is coupled to the nut 2. At this time, the number of the holes 5 is preferably formed equal to the number of nuts (2).

The hole 5 is inclined so as to decrease the inner diameter as it is closer to the body 3 and the head portion of the bolt 6 also preferably has the same or similar inclined surface as the hole 5. That is, the bolt 6 is a countersunk bolt having a countersunk head, and the hole has an inclined surface 5a corresponding to the inclined surface of the countersunk bolt.

Therefore, when the bolt 6 is inserted through the hole 5 and coupled with the nut 2 as shown in FIG. 4, the plate 4 may not be detached arbitrarily unless the bolt 6 is separated from the nut 2. do.

Figure 7 is another exemplary view of the present invention, Figure 8 is a partially enlarged view of Figure 7 concrete pile according to the present invention is one or more steel wire (1), and the nut (2) is fitted so as not to fall out of the steel wire (1) ), A body 3 formed of concrete around the steel wire 1, a plate 4 formed on one side of the body 3, a hole 5 formed in the plate 4, and a nut ( 2) and a bolt 6 coupled to the bolt 6, which is not exposed to the outside of the plate 4 after being fully fastened to the nut 2, and has a seat in the hole 5. (5b) is formed.

That is, the part different from the above embodiment is formed in the shape of the hole 5 and the shape of the bolt head so that the shape of the hole 5 is stepped, and the head of the bolt is coupled to the nut by the step of the hole 5. After that, it is not exposed to the outside of the plate 4.

As a result, as shown in the above two embodiments, the plate 4 is completely coupled to the body by a plurality of bolts 6 and nuts 2, so that when the two piles are joined by welding as shown in FIG. 8) The two files are not separated unless they are broken.

More preferably, the bolt 6 is a wrench bolt, which forms a wrench groove 6a in the head portion and can easily fasten and detach the bolt. In some cases, the reinforcing ring 7 is formed on one side of the plate. ) Can be formed.

10 is a manufacturing process diagram of the concrete pile according to the present invention, Figure 11 is a state diagram of the plate coupling step according to the present invention is completed, the manufacturing method of the concrete pile according to the present invention winding the steel wire (1) wound in the form of a coil Outgoing steel wire unwinding step, nut fitting step of inserting nut 2 to the unrolled steel wire, steel wire cutting step of cutting steel wire 1, and expanding both ends of steel wire 1 so that nut 2 cannot be pulled out A riveting step for forming the steel wires and arranging one or more steel wires 1, a plate joining step for inserting the plate 4 into the arranged steel wires 1 and coupling with the mold 9, and the mold 9. It comprises a concrete input step of injecting concrete into the concrete, the curing step of curing the concrete, and the mold separation step of separating the mold 9 after the curing is completed.

First, the wire unwinding step is a step of unwinding the wire wound in the form of a coil, and it is natural that the wire unwinding step is not necessary when the steel wire is supplied as reinforcing bars in general form rather than a coil shape.

After the wire unwinding step, a nut fitting step of inserting a nut into the unrolled steel wire is carried out. At this time, the nuts should be fitted to each side of the steel wire one by one and the screwed side should be inserted to the outside.

After the nut fitting step, the steel wire cutting step is performed, and if the nut fitting step is also supplied as a general date reinforcing bar, it is obvious that this wire cutting step is not necessary.

After the cutting of the wire, a riveting step is performed. The riveting step extends both ends of the wire so that the nut does not fall out arbitrarily.

After that, the steel wire arranging step of arranging one or more steel wires is performed, and it is obvious that the steel wire arrangement should be arranged over the entire length of the mold into which the concrete is to be put.

When the arrangement of the steel wire is completed, the plate joining step of inserting the plate into the arranged steel wire proceeds, in this case, the plate and the steel wire are combined by using nuts and bolts fitted to the steel wire.

When the combination of the steel wire and the plate is completed, the concrete input step of injecting concrete into the mold proceeds, and then the concrete curing step of curing the concrete proceeds. The concrete curing step may use a variety of methods, such as natural curing method, high speed rotation curing method, high temperature steam curing method.

After curing is completed, the mold is separated to produce a concrete pile according to the present invention.

The hole formed in the plate that can be used in the above-described concrete pile manufacturing method has a tapered inclined surface (5a) is formed and the plate and the nut is in close contact with the tension of the steel wire using the bolt formed with the inclined surface of the shape corresponding to the inclined surface Can be combined in the state.

In addition, a plate in which the seat portion 5b is formed in the hole may be used instead of the inclined surface 5a.

12 is another manufacturing process diagram of the concrete pile according to the present invention, Figure 13 is an explanatory view of the mold bonding step unwinding the steel wire unwinding step of winding the steel wire (1) wound in the form of a coil, and the unrolled steel wire (1) A nut fitting step of fitting the nut 2 to the nut, a wire cutting step of cutting the steel wire 1, a riveting step of expanding the both ends of the steel wire 1 so that the nut 2 does not fall out, and one or more wires ( 1) arranging a steel wire arrangement step, a mold joining step of coupling the arranged steel wire (1) and the nut (2) with the mold plate 10, a concrete input step of introducing concrete into the mold (9), concrete Curing step to cure, and mold curing step of separating the mold 9 and the mold plate 10 and the body 3 after the curing is completed, plate coupling to combine the plate 4 to the separated body (3) It is configured to include.

That is, the part different from the manufacturing method shown in FIG. 10 is not coupled to the steel wire and the plate after the steel wire arrangement step, but the steel plate and the mold 9, that is, the mold plate 10 and the steel wire 1 formed in the mold 9. ) And the nut (2), and after curing is completed to separate the concrete pile and the mold plate, and then join the plate to the separated body as needed.

The mold plate shown in FIG. 13 is used in the mold joining step and has holes formed therein, and is coupled to the nut 2 using the fastening bolts 11 formed at one side thereof, and at the same time, the steel wire 1 is fixed in the tensioned state. The concrete can then be added.

In this case, the mold plate 10 to be used may have a thread formed in the hole, and the hole having the inclined surface 5a or the seat portion 5b described in the present invention does not need to be formed.

As a result, the concrete pile produced in this way can be stored separately from the plate and the body, it can be used by combining the plate to the pile in use.

1. Liner 1a. End of steel wire
2. Nut 3. Body
4. Plate 5. Hole
5a. Slope 5b. (Bolt) seat
6. Bolt 6a. Wrench
7. Reinforcement ring 8. Weldment
9. Mold 10. Mold Plate
11. Fastening Bolt

Claims (8)

At least one steel wire (1), a nut (2) sandwiched from the steel wire (1), a body (3) formed of concrete around the steel wire (1), and a plate formed on one side of the body (3) And a bolt (6) coupled to the nut (2) through a hole (5) formed in the plate (4), the bolt (6) being fully fastened to the nut (2). After being exposed to the outside of the plate 4, the hole 5 has a tapered inclined surface 5a is formed and the head portion of the bolt 6 is characterized in that the inclined to correspond to the inclined surface 5a file
At least one steel wire (1), a nut (2) sandwiched from the steel wire (1), a body (3) formed of concrete around the steel wire (1), and a plate formed on one side of the body (3) And a bolt (6) coupled to the nut (2) through a hole (5) formed in the plate (4), the bolt (6) being fully fastened to the nut (2). The concrete pile is characterized in that it is not exposed to the outside of the plate 4 and the seat portion 5b is formed in the hole 5.
The method of claim 1,
The bolt 6 is a flat head bolt and the hole 5 is a concrete pile characterized in that the inclined surface corresponding to the inclined surface of the flat head bolt
3. The method according to any one of claims 1 to 3,
The bolt (6) is a concrete pile, characterized in that the wrench bolt formed with a wrench groove in the head portion
Steel wire unwinding step of unwinding the steel wire (1) wound in the form of a coil, Nut fitting step of inserting the nut (2) to the unwinded steel wire, Steel wire cutting step of cutting the steel wire (1), The riveting step of extending both ends to prevent the nut (2) from falling out, the steel wire arranging step of arranging one or more steel wires (1), the plate (4) in the arranged steel wires (1) and the mold (9) and And a plate joining step for coupling, a concrete input step for injecting concrete into the mold 9, a curing step for curing concrete, and a mold separation step for separating the mold 9 after curing is completed. Method of concrete concrete pile
Steel wire unwinding step of unwinding the steel wire (1) wound in the form of a coil, nut fitting step of inserting the nut (2) to the unwinded steel wire (1), cutting the steel wire (1), cutting the steel wire, The riveting step of expanding both ends of 1) to prevent the nut (2) from falling out, the liner arranging step of arranging one or more steel wires (1), and the arranged steel wires (1) and the nut (2) into a mold plate (10) ) And a mold joining step for coupling the concrete, a concrete input step for introducing concrete into the mold 9, a curing step for curing concrete, and a mold 9 and a mold plate 10 after curing is completed. And a mold separation step of separating and a plate coupling step of coupling the plate 4 to the separated body 3.
The method according to any one of claims 5 to 6,
A hole 5 is formed in the plate 4, and the hole 5 has a tapered inclined surface 5a and the head of the bolt 6 is inclined to correspond to the inclined surface 5a so that the bolt 6 can be formed. The method of producing a concrete pile, characterized in that after being completely fastened to the nut (2) is not exposed to the outside of the plate (4)
The method according to any one of claims 5 to 6,
A hole 5 is formed in the plate 4, and a seat portion 5b is formed in the hole 5 so that the bolt 6 is completely external to the plate 4 after the bolt 6 is completely fastened to the nut 2. Method of manufacturing concrete piles characterized by not being exposed to
KR1020110081687A 2011-08-17 2011-08-17 Concrete pile and how to make it KR20130019615A (en)

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KR1020110081687A KR20130019615A (en) 2011-08-17 2011-08-17 Concrete pile and how to make it

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190023785A (en) * 2017-08-30 2019-03-08 신재호 Phc pile for soil retaining wall and mold assembly for manufacturing the same
KR20190070607A (en) * 2017-12-13 2019-06-21 신재호 Phc pile for soil retaining wall, mold assembly and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190023785A (en) * 2017-08-30 2019-03-08 신재호 Phc pile for soil retaining wall and mold assembly for manufacturing the same
KR20190070607A (en) * 2017-12-13 2019-06-21 신재호 Phc pile for soil retaining wall, mold assembly and manufacturing method thereof

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