KR101535863B1 - Up-Down Combination Type Pile Connecting Apparatus and Pile Construction Method Using the Same - Google Patents

Abstract

A post connecting apparatus for vertically mounting a post according to the present invention comprises: an upper plate unit connected to one end of a first connection post and provided with a plurality of first mounting holes formed along a circumference thereof for mounting on the first connection post; a lower plate unit connected to one end of a second connection post, provided with a plurality of second mounting holes formed along a circumference thereof for mounting on the second connection post, and wherein the second mounting holes are not aligned with the first mounting holes; and a connection unit disposed between the upper plate unit and the lower plate unit. And, a post installation method using the same according to the present invention uses a post connecting apparatus comprising: an upper plate unit connected to one end of a first connection post and provided with a plurality of first mounting holes formed along a circumference thereof for mounting on the first connection post; a lower plate unit connected to one end of a second connection post, provided with a plurality of second mounting holes formed along a circumference thereof for mounting on the second connection post, and wherein the second mounting holes are not aligned with the first mounting holes; a connection unit disposed between the upper plate unit and the lower plate unit, opened in an outer diameter direction, and provided with second bolt insertion holes connected to the second mounting holes and formed thereon; and protective caps inserted into the second bolt insertion holes to protect heads of mounting bolts mounted into the second mounting holes. The post installation method using the post connecting apparatus comprises: a step of inserting the mounting bolts or steel bars of the first connection post into the first mounting holes to mount the upper plate unit on the first connection post; a step of inserting the mounting bolts into the second mounting holes to mount the lower plate unit on the second connection post; and a step of inserting the protective caps into the second bolt insertion holes.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates generally to pile joining, and more particularly,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pile joining device for connecting piles to each other, and more particularly, to a vertically coupled pile joining device formed at a position where coupling holes of an upper plate and a lower plate are displaced from each other.

Generally, in order to install a predetermined upper structure on the upper part of the ground, a sufficient supporting force for the load of the upper structure must be secured. The ground where the sufficient supporting force is not secured in response to the ground condition or the load condition of the superstructure is called soft ground.

In soft ground, the stability and settlement problem of the superego structure should be prepared prior to installation of the superego structure, and the most widely used method is to equally and safely reach the supposed supposed supine structure load There is a pile construction method.

Such a pile method refers to a method of constructing concrete piles produced by a factory in advance by hitting them with a diesel hammer or a hydraulic hammer or by drilling the ground and then installing the piles.

In the case of the pile construction method, the pile is selected considering the load condition applied to the structure, the seismic design, and other impact stresses. In the present construction site, high strength concrete pile is widely used, (Hereinafter referred to as " concrete pile ") of a pre-tensioned concrete having a compressive strength of 78.5 N / mm 2 (800 kgf / cm 2) or more in the concrete produced by applying centrifugal force.

The length of concrete piles is 5 ~ 15m due to the manufacturing and transportation constraints. However, depending on the ground conditions of the actual construction site, the construction of concrete piles with a depth of 16m or more is also inevitable.

As shown in FIG. 1, the first joint pile (1) and the second joint pile (1) are formed by connecting two or more concrete piles when the length of the concrete pile is 16 m or longer. 2 are attached to the end portions of the steel plates 3 and 4 with welding grooves 5 formed thereon to produce piles and the upper and lower piles are welded to each other in the field.

However, such a welding joint method is problematic in that it is easily influenced by climate, inspection of a welded portion is required, and there is a risk of a safety accident.

Therefore, a method for solving such problems is required.

Korean Patent No. 10-0646258 Korean Patent No. 10-0835778 Korean Registered Utility Model No. 20-0298683 Japanese Patent Application Laid-Open No. 2000-328556

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and to provide a pile joint device having a connecting part structurally stable and economical in terms of cost.

And to provide a pile joint device capable of connecting a pile without performing welding.

And a method of securing workability and economical efficiency compared with a conventional weldless welding method.

The present invention also provides a device capable of connecting a pile after it is attached to an existing pile.

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

In order to accomplish the above object, the present invention provides a pile joint device of a vertically-coupled type, comprising: a first joint pile connected to one end of a first joint pile and having a plurality of first fastening holes for fastening with the first joint pile, A plurality of second coupling holes for coupling with the second coupling peg are formed along the periphery, and the second coupling holes are formed at positions displaced from the first coupling holes And a connection part provided between the upper plate part and the lower plate part.

The first fastening hole may be formed to correspond to a fastening bolt inserted into the first fastening hole and fastened to a steel rod nut of the first joint pile.

And a first bolt insertion hole passing through the lower plate portion and the connection portion and communicating with the first fastening hole may be further formed.

The first joint hole may be formed to correspond to the steel bar of the first joint pile, and may be formed to insert and fix the steel rod of the first joint pile.

The first fastening hole may include a steel bar insertion portion having a larger diameter than the head of the steel bar and a steel bead portion having a diameter larger than that of the steel bar and formed so that the head of the steel bar can be fixed have.

The second fastening hole may be formed to correspond to a fastening bolt inserted into the second fastening hole and fastened to the steel rod nut of the second joint.

Further, a second bolt insertion hole may be formed in the outer circumferential direction of the connection portion and communicated with the second connection hole.

The upper plate portion may further include a third bolt insertion hole having a position corresponding to the second fastening hole.

Further, the second bolt insertion hole and the third bolt insertion hole may be connected to each other and have an open shape.

And a protection cap inserted in the second bolt insertion hole to protect the head of the fastening bolt fastened to the second fastening hole.

The outer side of the protective cap may be formed with a curvature corresponding to a curvature of the outer diameter of the connection portion.

The protection cap may be formed with a receiving groove for receiving the head of the fastening bolt.

Further, the fastening bolts fastened to the second fastening holes of the fastening bolts fastened to the plurality of second fastening holes may be formed to include the separated head and threaded portions so as to be able to be engaged with each other.

At this time, a guide pin may be coupled to a part of the second fastening holes of the plurality of second fastening holes, and a second fastening hole to which the guide pin is coupled may further include a lead-out groove for removing the guide pin.

The first joint pile is formed in the form of a steel pipe concrete pile, and a seating groove on which the steel pipe is seated may be formed around the upper plate.

According to another aspect of the present invention, there is provided a pile joint device of a vertically-coupled type, comprising: a first joint pile formed in the form of a steel pipe pile and connected to one end of the first joint pile; A lower plate portion connected to one end of the second joint pile and having a plurality of second fastening holes corresponding to the fastening bolts fastened to the steel rod nuts of the second joint pegs along the periphery thereof and a lower plate portion provided between the upper plate portion and the lower plate portion. .

And a second bolt insertion hole opened in the outer diameter direction of the connection portion and communicating with the second fastening hole may be further formed.

In addition, the method of constructing a pile using the vertically-coupled pile joint device of the present invention is characterized in that a pile installation method is used in which a plurality of first fastening holes for fastening with the first joint pile are formed along a periphery, A plurality of second coupling holes for coupling with the second coupling peg are formed along the periphery, and the second coupling holes are formed at positions displaced from the first coupling holes A connecting portion provided between the upper plate portion and the lower plate portion and having a second bolt insertion hole formed in the outer circumferential direction and communicating with the second fastening hole and a second bolt insertion hole formed in the second bolt insertion hole, And a protective cap for protecting a head portion of a fastening bolt fastened to the second fastening hole, the method comprising: inserting a fastening bolt or a steel rod of the first jointed pile into the first fastening hole, Top Inserting the first joint pile, inserting a fastening bolt into the second fastening hole to fasten the lower plate and the second joint pile, and inserting the protection cap into the second bolt insertion hole .

The upper plate portion is further provided with a third bolt insertion hole having a position corresponding to the second fastening hole. The height of the connection portion is lower than the height of the fastening bolt, and the upper plate portion and the first joint pile are fastened The step of inserting the fastening bolt into the second fastening hole through the third bolt insertion hole may be further included before the step.

The fastening bolts fastened to a part of the second fastening holes of the plurality of second fastening holes are formed in a shape including a head and a screw part which are separated so as to be able to be engaged with each other, and the lower plate part and the second joint peg The step of joining the threaded portion to a part of the steel bar nuts provided in the second joint pile may be further included.

A plurality of second fastening holes may be formed on the first joint pile, and a rod-shaped guide pin may be coupled to the second fastening hole of the plurality of second fastening holes. Before the step of fastening the lower plate and the second joint pile, The method may further include a step of coupling the guide pin to a part of the lower joint part, and after the step of fastening the lower joint part and the second joint pile, removing the guide pin from the second fastening hole.

The above and other objects and features of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which: FIG.

First, there is an advantage that the joint of the pile is structurally stable by the first fastening holes and the second fastening holes which are arranged to be shifted from each other.

Second, since the height of the connecting portion can be minimized, the material can be reduced.

Third, there is no need to perform welding, and the construction cost can be reduced, and there is an advantage that it is not restricted by the environment.

Fourth, there is a merit that the skill level is low and skilled workers are not needed.

Fifth, there is an advantage that it can be used for a conventional pile.

Sixth, because it is compatible with various kinds of piles, there is an advantage that it is excellent in versatility.

Seventh, there is an advantage that the workability and economical efficiency are superior to the conventional weldless welding method.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a cross-sectional view showing a state where a pile is connected by a conventional welding method;
FIG. 2 is an exploded perspective view showing a connection structure between respective components in the pile joint device according to the first embodiment of the present invention; FIG.
FIG. 3 is a perspective view showing an enlarged view of a pile joint device according to a first embodiment of the present invention; FIG.
FIG. 4 is a plan view, a cross-sectional view and a bottom view of the pile-connecting device according to the first embodiment of the present invention.
5 is a cross-sectional view showing a first joint pile and a second joint pile connected to each other by a pile joint device according to a first embodiment of the present invention;
6 is a perspective view showing an enlarged view of a pile joint device according to a second embodiment of the present invention;
FIG. 7 is a plan view, a cross-sectional view and a bottom view showing a pile-connecting device according to a second embodiment of the present invention in more detail; FIG.
FIG. 8 is a sectional view showing a first joint pile and a second joint pile connected to each other by a pile joint device according to a second embodiment of the present invention; FIG.
FIG. 9 is a perspective view showing an enlarged view of a pile joint device according to a third embodiment of the present invention; FIG.
FIG. 10 is a perspective view showing an enlarged view of a pile joint device according to a fourth embodiment of the present invention; FIG.
11 is a plan view, a cross-sectional view and a bottom view of the pile-connecting device according to the fourth embodiment of the present invention.
12 is a cross-sectional view illustrating a first joint pile and a second joint pile connected to each other by a pile joint device according to a fourth embodiment of the present invention;
FIG. 13 is a perspective view showing an enlarged view of a pile joint device according to a fifth embodiment of the present invention; FIG.
FIG. 14 is a sectional view showing a first joint pile and a second joint pile connected to each other by a pile joint device according to a fifth embodiment of the present invention; FIG.
FIG. 15 is a perspective view showing an enlarged view of a pile joint device according to a sixth embodiment of the present invention; FIG.
16 is a cross-sectional view showing a first joint pile and a second joint pile connected to each other by a pile joint device according to a sixth embodiment of the present invention;
17 is a sectional view showing a process of connecting a first joint pile and a second joint pile using the pile joint device according to the first embodiment of the present invention;
18 is a sectional view showing a process of connecting a first joint pile and a second joint pile using a pile joint device according to a second embodiment of the present invention; And
19 is a cross-sectional view showing another cross-section of a process of connecting a first joint pile and a second joint pile using the pile joint device according to the second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

FIG. 2 is an exploded perspective view showing a connection structure between respective components in the pile joint 100 according to the first embodiment of the present invention. FIG. 3 is a perspective view of the pile joint 100 according to the first embodiment of the present invention. Of the present invention. And FIG. 4 is a plan view, a cross-sectional view, and a bottom view of the pile-joining apparatus 100 according to the first embodiment of the present invention.

2 to 4, the first joint pile 10 and the second joint pile 20 are connected to each other by a pile joining device 100, and the pile joining device 100 is connected to the upper plate 110 A lower plate portion 120, and a connecting portion 130.

The upper plate 110 is connected to one end of the first joint pile 10 and a plurality of first fastening holes 112 for fastening the first joint pile 10 to the first joint pile 10 are formed along the periphery.

The lower plate portion 120 is connected to one end of the second joint pile 20 and a plurality of second fastening holes 122 for fastening with the second joint pile 20 are formed along the circumference. At this time, the second fastening holes 122 are formed at positions displaced from the first fastening holes 112. That is, the first fastening hole 112 and the second fastening hole 122 are alternately formed along the circumference.

The connection part 130 is provided between the upper plate part 110 and the lower plate part 120 and may have a predetermined height.

Here, in the present embodiment, the first joint pile 10 and the second joint pile 20 are all formed as concrete piles and have a steel bar and a steel bar nut provided therein. Therefore, the first fastening hole 112 and the second fastening hole 122 may be formed to have the same number of steel rods and steel rod nuts as the piles corresponding to each other.

More specifically, in this embodiment, the first fastening hole 112 and the second fastening hole 122 are formed so as to penetrate through the first fastening hole 112 and the second fastening hole 122, And the fastening bolts 160 fastened to the steel bar nuts of the fasteners 10 and 20. That is, the upper plate 110 and the lower plate 120 can be fastened to the first joint pile 10 and the second joint pile 20 by the fastening bolts 160, respectively.

Also, in this embodiment, the fastening bolt 160 may be inserted into the first fastening hole 112, and may be communicated with the first fastening hole 112 through the lower plate 120 and the connecting portion 130, The first bolt insertion hole 114 and the second bolt insertion hole 114 are formed in the outer circumferential direction of the connection portion 130 so that the fastening bolt 160 can be inserted into the second fastening hole 122, A second bolt insertion hole 124 is formed.

The fastening bolt 160 coupled to the first fastening hole 112 is connected to the fastening bolt 160 coupled to the second fastening hole 122 through the first bolt insertion hole 114, Can be inserted and fastened through the insertion hole (124).

The present embodiment further includes a protection cap 150 inserted into the second bolt insertion hole 124 to protect the head of the fastening bolt 160 fastened to the second fastening hole 122. The protective cap 150 is provided in the number corresponding to the number of the second bolt insertion holes 124 and can be inserted in each of the second bolt insertion holes 124 to prevent foreign substances such as soil from entering the fastening bolt 160 Is used for the purpose of preventing corrosion as the head portion comes into contact with the soil.

In this embodiment, the protective cap 150 has a closed top shape and a receiving groove 152 for receiving the head of the fastening bolt 160 is formed. Further, the outer side of the protective cap 150 may be formed with a curvature corresponding to the curvature of the outer diameter of the connection part 130, thereby reducing the resistance and improving the workability.

5 is a cross-sectional view showing a first joint pile 10 and a second joint pile 20 connected to each other by a pile joint 100 according to a first embodiment of the present invention.

5, the pile joint device 100 is provided between the first joint pile 10 and the second joint pile 20, and the fastening bolts 160 are respectively connected to the first joint pile 10 A steel rod nut 14 for fixing the steel rod 12 of the second joint 20 and a steel rod nut 24 for fixing the steel rod 22 of the second joint 20. Accordingly, the first joint pile 10 and the second joint pile 20 can be stably connected.

Hereinafter, other embodiments of the present invention will be described.

FIG. 6 is a perspective view showing an enlarged view of a pile joint device 200 according to a second embodiment of the present invention, and FIG. 7 is a perspective view showing a pile joint device 200 according to a second embodiment of the present invention in more detail Sectional view and a bottom view, respectively.

6 and 7, the pile-connecting device 200 according to the second embodiment of the present invention is formed to have the same overall shape as the first embodiment described above. A first bolt insertion hole 214, a second bolt insertion hole 224, and a second bolt insertion hole 214. The first bolt insertion hole 214 and the second bolt insertion hole 224 are formed in the upper plate portion 210, the lower plate portion 220, the connection portion 230, And the protective cap 250 are all formed identically, but in this embodiment, the third bolt insertion hole 226 is further formed.

The third bolt insertion hole 226 is formed on the side of the upper plate 210, particularly at each position corresponding to the second fastening hole 222. That is, the third bolt insertion hole 226 is formed between the first fastening holes 212 and has a concentric axis with the second fastening holes 222.

Accordingly, even if the height of the fastening bolt 260 is higher than the height of the second bolt insertion hole 224 when the lower plate 220 is coupled to the second joint pile 20, The third bolt insertion hole 226 can be inserted. In such a case, the total height of the pile joint device 200 may be reduced to reduce the manufacturing cost and improve the connection stability.

Meanwhile, in the case of this embodiment, as shown in section B-B of FIG. 7, a part of the second fastening holes 222 further includes a lead-out groove 223, which will be described later.

8 is a cross-sectional view illustrating a first joint pile 10 and a second joint pile 20 connected to each other by a pile joint 200 according to a second embodiment of the present invention.

8, the pile joint device 200 is provided between the first joint pile 10 and the second joint pile 20, and the fastening bolts 260 are respectively connected to the first joint pile 10 A steel rod nut 14 for fixing the steel rod 12 of the second joint 20 and a steel rod nut 24 for fixing the steel rod 22 of the second joint 20.

In this case, when the first joint pile 10 and the pile coupling 200 are first coupled, the third bolt insertion hole 226 (see FIG. 6) described above is shielded by the first joint pile 10, It is preferable that the fastening bolts 260 for coupling with the joint pile 20 are inserted into the second fastening holes 222 (see FIG. 6) in advance.

9 is a perspective view showing an enlarged view of a pile joint device 300 according to a third embodiment of the present invention.

9, the upper plate portion 310, the lower plate portion 320, the connecting portion 330, the first fastening hole 312, the second fastening hole 322, the first bolt insertion portion 322, The hole 314 and the second bolt insertion hole 324 are formed in the same manner as the first and second embodiments described above. However, the second embodiment differs from the second embodiment in that the second bolt insertion hole and the third bolt insertion hole are connected to each other and have an opening shape.

In this case, the weight of the pile joint device 300 can be minimized, and at this time, the protective cap may have a height corresponding to the combined height of the top plate portion 310 and the connection portion 330.

FIG. 10 is a perspective view showing an enlarged view of a pile joint device 400 according to a fourth embodiment of the present invention, and FIG. 11 is a perspective view showing a pile joint device 400 according to a fourth embodiment of the present invention in more detail Sectional view and a bottom view, respectively. 12 is a cross-sectional view showing a first joint pile 30 and a second joint pile 20 connected to each other by a pile joint 400 according to a fourth embodiment of the present invention.

The pile joint 400 according to the fourth embodiment of the present invention shown in Figs. 10 to 12 is different from the pile joint 400 according to the first embodiment in that the upper plate 410, the lower plate 420, the connecting portion 430, The fastening hole 422, the second bolt insertion hole 424, and the protection cap 450 are all formed identically.

However, the pile joint device 400 of the present embodiment is formed integrally with the first joint pile, and the shape of the first joint hole 412 formed in the upper plate portion 410 is different.

Specifically, in the present embodiment, the first joint hole 412 is formed to correspond to the steel rod 32 of the first joint pile 30, and the steel rod 32 of the first joint pile 30 is inserted And fixed. The first fastening hole 412 has a steel rod insertion portion 412a having a larger diameter than the head of the steel rod 32 and a steel rod insertion portion 412b having a diameter larger than that of the steel rod 32, And a head 412b formed to be able to fix the head of the head 412b.

Accordingly, when the pile is manufactured, the steel rods 32 are inserted into the steel rod insertion portion 412a, and then moved to the steel sump forming portion 412b so that the pile joining device 400 can be integrally fixed to the pile. That is, as shown in FIG. 12, it can be seen that the steel rod 32 of the first joint pile 30 is inserted into the first fastening hole 412 and formed integrally with the pile joint device 400.

FIG. 13 is a perspective view showing an enlarged view of a pile joint device 500 according to a fifth embodiment of the present invention, FIG. 14 is a pile joint device 500 according to a fifth embodiment of the present invention, Sectional view showing a state in which the joint pile 40 and the second joint pile 20 are connected to each other.

The pile joint device 500 according to the fifth embodiment of the present invention shown in Figs. 13 and 14 is similar to the pile joint device 500 of the fourth embodiment except that the upper plate portion 510, the lower plate portion 520, the connecting portion 530, The fastening hole 512, the second fastening hole 522, the second bolt insertion hole 524, and the protection cap 550 are all formed identically.

The pile joint device 500 of the present embodiment is used when the first joint pile 40 is a steel pipe concrete pile in which a steel pipe 40a and a concrete 40b are combined. And a seat groove 515 in which the steel pipe 40a is seated is formed.

That is, in this embodiment, the first joint pile 40 and the second joint pile 20 can be connected to each other in a state where the steel pipe 40a is stably installed in the seating groove 515 as shown in Fig.

FIG. 15 is a perspective view showing an enlarged view of a pile joining apparatus 600 according to a sixth embodiment of the present invention. FIG. 16 is a pile joining apparatus 600 according to a sixth embodiment of the present invention, Sectional view showing a joint pile 50 and a second joint pile 20 connected to each other.

As shown in FIGS. 15 and 16, in the pile driving apparatus 600 according to the sixth embodiment of the present invention, the upper plate 610, the lower plate 620, the connecting portion 630 The second fastening hole 622, the second bolt insertion hole 624, and the protection cap 650 are formed in the same manner. However, the pile joint device 600 according to the present embodiment is used when the first joint pile 50 is in the form of a steel pipe pile, and the first joint hole is omitted.

That is, when the first joint pile 50 is a steel pipe pile, it is not necessary to provide a structure for fastening to the concrete portion. Thus, the first fastening hole is omitted. At this time, the upper plate portion 610 is formed with a seating groove 515 in which the first joint pile 50 is seated, as in the fifth embodiment described above.

In the foregoing, each embodiment of the present invention has been described. Hereinafter, a process of constructing a pile using a pile joining apparatus according to the present invention will be described, and the first and second embodiments are selected as representatives.

17 is a sectional view showing a process of connecting the first joint pile 10 and the second joint pile 20 using the pile joint 100 according to the first embodiment of the present invention.

17, the process of connecting the first joint pile 10 and the second joint pile 20 using the pile joint 100 according to the first embodiment of the present invention includes the steps of (a The fastening bolt 160 is inserted into the first fastening hole 112 to fasten the first joint pile 10 to the upper plate.

The fastening bolt 160 is inserted into the second fastening hole 122 to fasten the lower plate and the second joint pile 20 as shown in FIGS. Accordingly, the first joint pile (10) and the second joint pile (20) can be stably connected to each other.

The protective cap 150 is inserted into the second bolt insertion hole 124 and the fastening bolt 160 fastened to the second joint pile 20 is inserted into the second bolt insertion hole 124 as shown in (c) and (d) (Not shown). Thus, the construction of the pile is completed.

In the present embodiment, the first joint pile 10 and the pile joint 100 are fastened by the fastening bolts 160. However, when the pile joint device 100 is fastened to the steel rods 10 of the first joint pile 10 12 may be manufactured in the same manner as described above.

18 is a cross-sectional view illustrating a process of connecting the first joint pile 10 and the second joint pile 20 using the pile joint apparatus 200 according to the second embodiment of the present invention.

The construction process of the pile joint device 200 according to the second embodiment shown in FIG. 18 is also the same as the construction process of the first embodiment.

However, since the third bolt insertion hole 226 is further formed in the present embodiment, the height of the second bolt insertion hole 224 may be lower than the height of the bolt 260. In this case, The fastening bolt 260 can not be inserted into the second bolt insertion hole 224.

Therefore, according to the present embodiment, as shown in (b) and (c), before the step of fastening the upper joint part of the pile joint device 200 and the first joint pile 10, The step of inserting the fastening bolt 260 into the second fastening hole 222 through the third bolt insertion hole 226 may be further included.

This is because the third bolt insertion hole 226 is shielded after the upper joint part of the pile joint device 200 and the first joint pile 10 are fastened to each other.

Then, the construction process is performed in the same manner as the construction process of the first embodiment.

FIG. 19 is a sectional view showing another cross-section of a process of connecting a first joint pile 10 and a second joint pile 20 using a pile joint device 200 according to a second embodiment of the present invention.

FIG. 19 shows the same construction as FIG. 18, but FIG. 18 shows a cross section taken along the line A-A in FIG. 7, and FIG. 19 shows a cross section taken along the line B-B. This is because, in the case of the second embodiment, a part of the second fastening holes 222 is applied with a fastening bolt 260 (see FIG. 18) and another fastening bolt 270.

Specifically, the fastening bolt 270 fastened to the second fastening hole 222 of the B-B cross section is formed to include a head 270a and a threaded portion 270b which are separated so as to be mutually engageable.

The reason for using the other type of fastening bolts 270 is that after the first joint pile 10 and the pile joint device 200 are coupled to each other, the steel rod nut 24 of the second joint pile 20, So that the position of the two fastening holes 222 can be precisely and easily adjusted.

The threaded portion 270b of the fastening bolt 270 is first fastened to the steel rod nut 24 of the second jointed pile 20 and then the fastening bolt 270 is fastened to the projected threaded portion 270b as shown in (c) It is possible to align the positions of the steel bar nuts 24 and the second fastening holes 222 of the second joint pile 20 with each other by inserting the fastening bolts 222 in alignment with each other. The head portion 270a of the fastening bolt 270 is inserted into the second bolt insertion hole 224 and the fastening bolt 270 is coupled with the screw portion 270b as shown in FIGS. The coupling of the coupling device 200 can be completed.

Meanwhile, as described above, the second fastening hole 222 into which the other fastening bolts 270 are inserted may be formed with the lead-out groove 223 (see FIG. 7). This is used when the first joint pile 10 and the second joint pile 20 are joined by using the screw portion 270b and then pulled out and a general fastening bolt 260 is used. It is formed to facilitate withdrawal.

Another purpose of the lead groove 223 is to form a first joint pile 10 and a second joint pile 30 by using a rod-shaped guide pin (not shown) The guide pin is easily drawn out and the general fastening bolt 260 is easily inserted into the second fastening hole 222 after the fastening bolt 260 is fastened. At this time, even if the height of the second bolt insertion hole 224 is lower than the height of the fastening bolt 260 by the lead groove 223, the bolt can be inserted.

In addition, when the general fastening bolt 260 is inserted into the second bolt insertion hole 224, it may be easily inserted by the inclined surface.

In addition, the screw portion 270b may be formed with a wrench groove or a pin hole into which the wrench 270 is inserted to facilitate rotation when the screw portion 270b is engaged.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

10: First joint pile 12: Steel bar
14: Steel rod nut 20: Second joint stake
22: Steel rod 24: Steel rod nut
100: pile joining device 110: upper plate
112: first fastening hole 114: first bolt insertion hole
120: lower plate portion 122: second fastening hole
124: second bolt insertion hole 130:
150: protective cap 152: receiving groove
160: fastening bolt

Claims (21)

A top joint part connected to one end of the first joint pile and having a plurality of first fastening holes for fastening with the first joint pile;
A plurality of second coupling holes for coupling with the second coupling pile are formed along the periphery of the second coupling pile, and the second coupling holes are connected to one end of the second coupling pile, part;
A connection portion provided between the upper plate portion and the lower plate portion;
A first joint piercing through the lower plate portion and the connecting portion to the lower side of the first fastening hole and communicating with the first fastening hole so that the fastening bolt fastened to one end of the first joint pile is passed, Bolt insertion hole; And
A second bolt insertion hole opened in an outer diameter direction of the connection portion and communicating with the second connection hole;
And a pile coupling device. The method according to claim 1,
Wherein the first fastening hole
And the pivot shaft is inserted into the first fastening hole to correspond to the fastening bolt fastened to the steel rod nut of the first joint pile. delete delete delete The method according to claim 1,
The second fastening hole
And the second bolt is inserted into the second bolt hole to correspond to a fastening bolt fastened to a steel bar nut of the second joint pile. delete The method according to claim 1,
In the upper plate portion,
And a third bolt insertion hole having a position corresponding to the second fastening hole. 9. The method of claim 8,
And the second bolt insertion hole and the third bolt insertion hole are connected to each other to have an opening shape. The method according to claim 1,
And a protective cap inserted in the second bolt insertion hole to protect a head portion of a fastening bolt fastened to the second fastening hole. 11. The method of claim 10,
And the outer side of the protective cap has a curvature corresponding to a curvature of the outer diameter of the connecting portion. 11. The method of claim 10,
Wherein the protection cap has a receiving groove for receiving a head of the fastening bolt. The method according to claim 6,
Wherein the fastening bolts fastened to a part of the second fastening holes of the fastening bolts fastened to the plurality of second fastening holes include a head portion and a screw portion which are separated from each other to be able to be engaged with each other. The method according to claim 6,
Wherein a guide pin is coupled to a part of the second fastening holes of the plurality of second fastening holes and a second fastening hole to which the guide pin is coupled further includes a lead groove for removing the guide pin. delete delete delete A first joint pile connected to one end of the first joint pile and having a plurality of first fastening holes for fastening the first joint pile to the first joint pile, the first joint pile being connected to one end of the second joint pile, Wherein the second fastening holes are formed at positions displaced from the first fastening holes, a connecting portion provided between the upper plate and the lower plate, A first joint piercing through the lower plate portion and the connecting portion to the lower side of the first fastening hole and communicating with the first fastening hole so that the fastening bolt fastened to one end of the first joint pile is passed, And a second bolt insertion hole which is opened in an outer diameter direction of the connection portion and communicates with the second fastening hole, the method comprising:
Inserting a fastening bolt into the first fastening hole through the first bolt insertion hole to fasten the upper joint part and the first joint pile; And
Inserting a fastening bolt into the second fastening hole through the second bolt insertion hole to fasten the lower plate and the second joint pile;
And the pile construction method. 19. The method of claim 18,
The upper plate portion is further provided with a third bolt insertion hole having a position corresponding to the second fastening hole, the height of the connection portion is lower than the height of the fastening bolt,
Before the step of fastening the upper joint part and the first joint pile,
And inserting the fastening bolt through the third bolt insertion hole into the second fastening hole. 19. The method of claim 18,
The fastening bolts fastened to a part of the second fastening holes of the plurality of second fastening holes are formed in a shape including a separated head and a threaded portion so as to be able to be engaged with each other,
Before the step of fastening the lower joint part and the second joint pile,
And joining the threaded portion to a portion of the steel bar nut provided on the second joint pile. 19. The method of claim 18,
Wherein a rod-shaped guide pin is coupled to a part of the second fastening holes of the plurality of second fastening holes,
Before the step of fastening the lower joint part and the second joint pile,
Further comprising coupling the guide pin to a part of the steel bar nut provided on the second joint pile,
After the step of fastening the lower joint part and the second joint pile,
And removing the guide pin from the second fastening hole.

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