KR20140132563A - connecting device of Pretensioned spun High strength Concrete Piles - Google Patents

connecting device of Pretensioned spun High strength Concrete Piles Download PDF

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Publication number
KR20140132563A
KR20140132563A KR20130051898A KR20130051898A KR20140132563A KR 20140132563 A KR20140132563 A KR 20140132563A KR 20130051898 A KR20130051898 A KR 20130051898A KR 20130051898 A KR20130051898 A KR 20130051898A KR 20140132563 A KR20140132563 A KR 20140132563A
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KR
South Korea
Prior art keywords
pile
embedding member
side embedding
overlapping
upper side
Prior art date
Application number
KR20130051898A
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Korean (ko)
Inventor
김병철
장상옥
김기웅
김유라
Original Assignee
김병철
김유라
김기웅
장상옥
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Application filed by 김병철, 김유라, 김기웅, 장상옥 filed Critical 김병철
Priority to KR20130051898A priority Critical patent/KR20140132563A/en
Publication of KR20140132563A publication Critical patent/KR20140132563A/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
    • E02D5/223—Details of top sections of foundation piles
    • 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
    • E02D5/24—Prefabricated piles
    • E02D5/28—Prefabricated piles made of steel or other metals
    • E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
    • 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
    • E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
    • E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
    • E02D5/526—Connection means between pile segments
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements

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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

The present invention relates to a new type of PC stiffener integrated pile joint which enables the connection between the upper pile and the lower pile which constitute the pile to be stable, will be.
To this end, the present invention provides a pile-top pile comprising: an upper side buried member formed to be fixedly embedded in a bottom surface of an upper pile and having an outer circumferential surface exposed outside a peripheral side of the upper pile; A lower side buried member embedded in and fixed to a position of the upper surface of the lower pile opposite to the upper side buried member and exposed to the outside of the peripheral side of the lower pile; A pair of overlapping portions formed corresponding to the upper side embedding member and the lower side side embedding member and formed so as to overlap each other in the horizontal direction; And a fastening member for fastening and fixing the overlapped portions of the respective embedding members to each other. The PC rigid-one-piece pile joining apparatus of the present invention is also provided.

Description

Connecting device of PC rigid pile with high strength concrete piles

The present invention relates to a coupling device for connecting a pile, and more particularly, to a new type of PC rigid-pile integrated pile coupling device capable of stable connection between two piles through a minimum connection operation.

In general, piles are the foundation structures that are installed to transmit the load transferred from the superstructure to the ground when the ground is weak in civil engineering and construction construction.

Such piles are classified into various types such as PC files (Pretensioned spun Concrete Piles) and PHC files (Pretensioned spun High strength Concrete Piles) depending on the use purpose and the field conditions.

Among the above piles, the PHC file refers to a pre-tensioned high-strength concrete pile having a compressive strength of 80 MPa or more of a concrete made by using centrifugal force, and is a pile supplemented with defects of concrete which is weak to bending or tensile force.

When the construction site of civil structure, civil structure, etc. is soft ground, the foundation ground should be seated on solid ground. However, since it is difficult to produce a PHC file at a maximum length of 15M or more due to manufacturing and transportation constraints, it is inevitably necessary to couple a plurality of piles in series when deep designation is required. In the past, The welding method is mainly made up.

In case of this welding method, there is a limitation of the weather conditions such as a case where a welder who is a professional engineer has to construct and a case where it is rainy or windy, and the time occupied by the welding work during the entire pile construction time is significant, Additional time is required for the construction cost. In addition, after welding, there is considerable difficulty in quality control such as inspection of defects in welding by inspection methods such as ultrasonic inspection method and magnetic particle inspection method.

Recently, the prior art related to a non-welding pile-sinking device using a bolt or the like instead of a welding method has been proposed in various forms, as disclosed in Japanese Laid-Open Patent Publication No. 10-2007-0019099.

However, in the above-mentioned prior art, since the connecting ring has to be bolted to both the upper pile and the lower pile, the working time for the bolting operation is long.

Of course, in recent years, a connecting pin is provided on one of the opposite surfaces between the two piles, and a receiving structure for receiving the connecting pin is formed on the other surface. In the process of connecting the two piles, So that the two piles can be connected to each other in a lump. In this regard, it is as disclosed in Registration Practical Utility Model No. 20-0363687, Patent Document 10-2006-0061739, etc.

However, since the connecting pin has insufficient rigidity to support a load provided in the lateral direction between the two piles, these techniques also include a method of wrapping the circumference of the connection region between the piles with the connecting ring, Therefore, there is still a problem that the workability is deteriorated due to the large number of bolting and the work takes a long time.

SUMMARY OF THE INVENTION The present invention has been made in order to solve various problems of the prior art described above, and it is an object of the present invention to provide a pile of the present invention, in which the connection between the upper pile and the lower pile can be stably performed, So that it is possible to provide a new type of PC rigid-joint pile joint.

In order to accomplish the above object, according to the present invention, there is provided a joint device for an integrated pile of a PC, comprising: an upper side buried member formed to be embedded in a bottom surface of an upper pile and exposed to the outside of a peripheral side of the upper pile; A lower side buried member embedded in and fixed to a position of the upper surface of the lower pile opposite to the upper side buried member and exposed to the outside of the peripheral side of the lower pile; A pair of overlapping portions formed corresponding to the upper side embedding member and the lower side side embedding member and formed so as to overlap each other in the horizontal direction; And a fastening member for fastening and fixing the overlapping portions of the respective embedding members to each other.

Here, the overlapped portion formed on the lower side embedding member may have a stepped portion formed on the upper end side outer peripheral surface of the lower side embedding member as compared to other portions, and the overlapped portion formed on the upper side embedding member may be formed on the bottom surface And a protrusion protruding downward to surround the outer circumferential surface of the step.

The overlapped portion formed in the upper side embedding member may have a step formed by recessing the lower end side outer peripheral surface of the upper side embedding member with respect to other portions, And a protrusion protruding upward to surround the outer circumferential surface of the step.

In addition, the overlapping surfaces overlapping each other between the overlapping portions constituting the respective embedding members are formed to be inclined so that the overlapping portions overlap each other in the form of a wedge.

The edge of each end of the overlapping portion constituting the upper side embedding member is formed so as to be rounded on a side opposite to the lower side embedding member. The edge of the overlapping portion of the overlapping portion constituting the lower side embedding member, And the corner of the viewing side is rounded.

In addition, receiving grooves are formed on opposite sides of the upper side embedding member and the lower side embedding member so that the end of the PC steel bar provided along the longitudinal direction in each pile is accommodated, A lower end between the upper side embedding member and the lower side embedding member is fixed in the receiving groove of the lower side fastening member and an upper end of the through hole is inserted into the receiving groove of the upper side fastening member And a guide member is further included.

In addition, a part of the upper circumferential surface of the position guiding member may be formed in a stepped shape, and the upper surface of the position guiding member may be formed as a rounded spherical surface.

Further, each of the reinforcement caps may further include a reinforcement cap surrounding the lower end of the upper pile and the upper end of the lower pile, the reinforcement cap surrounding a portion other than the portion where the respective embedding member is installed.

As described above, the joint device of the PC steel bar integrated pile according to the present invention is constructed by embedding each embedding member formed so as to be overlapped with each other on the opposed surfaces of the respective piles so that even if a separate welding operation is not performed, In particular, since the bolting operation for connection between the piles can be reduced to half compared with the conventional structure, the working time can be remarkably shortened.

In addition, since the PC rigid-one-piece pile joining apparatus of the present invention is configured such that each of the above-described embedding members can also function as a structure for installing each PC steel bar, it is possible to reduce the number of parts as a whole, This also has the effect of reducing the logistics cost and the manufacturing cost.

In addition, since the overlapped portions of the respective embedding members constituting the joint device of the PC steel bar integrated pile of the present invention can be engaged with each other in the form of a wedge, Thereby enabling an accurate connection between the two.

1 is an exploded perspective view illustrating a coupling device of a PC steel bar integrated pile according to a preferred embodiment of the present invention.
FIG. 2 is a perspective view illustrating a coupling device of a PC steel bar integrated pile according to a preferred embodiment of the present invention.
FIG. 3 is a cross-sectional view illustrating a joint of a PC steel bar integral pile according to a preferred embodiment of the present invention.
FIGS. 4 to 6 are cross-sectional views illustrating a coupling process between an upper pile and a lower pile using a joint of a PC steel bar integral pile according to a preferred embodiment of the present invention.
7 and 8 are diagrams for explaining a state in which a reinforcement cap is added to a joint of a PC steel bar integral pile according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a PC rigid-body pile joint according to the present invention; FIG.

Prior to the description of the embodiment, the pile Plie to which the joint of the PC steel bar integrated pile of the present invention is applied is a PHC file (Pretensioned spun high strength concrete piles), and is divided by a joint of the PC steel bar integral pile of the present invention Two piles (10, 20) are connected to each other to complete the pile connection.

FIG. 1 and FIG. 2 show an external structure of a joint device of a PC steel bar integrated pile according to a preferred embodiment of the present invention. According to these drawings, the PC rigid- The upper side embedding member 100, the lower side embedding member 200, the overlapping portions 120 and 220, and the fastening member 300.

This will be described in more detail below for each configuration.

The upper side embedding member 100 is fixed to the upper pile 10 and is provided as a structure for connection with the lower pile 20 and a PC steel rod 30 for reinforcing the rigidity of the upper pile 10, As shown in FIG.

The upper side embedding member 100 is embedded in the bottom surface of the upper pile 10.

Particularly, in the embodiment of the present invention, the upper side embedding member 100 is formed to have a square block structure of a metal material, so that the upper side embedding member 100 always has an accurate direction in a state of being embedded in the upper pile 10. [

In addition, the outer circumferential surface of the upper side buried member 100 is formed to be exposed to the outside of the peripheral side of the upper pile 10, and the upper receiving groove 110 is formed on the bottom surface of the upper side buried member 100 A through hole 111 passing through the upper surface of the upper side embedding member 100 is formed on the upper surface of the upper receiving groove 110.

At this time, the upper receiving groove 110 is provided to a portion where the end head portion 31 of the PC steel bar 30 installed along the longitudinal direction in the upper pile 10 is received, and the through hole 111 Except for the head part 31 of the PC steel bar 30, can be penetrated. The PC rigid bar 30 is moved along the longitudinal direction in the upper pile 10 through the upper surface of the upper side embedding member 100 while the head portion 31 thereof is accommodated in the upper receiving groove 110 .

The lower side embedding member 200 is provided as a structure for connection with the upper pile 10 while being fixed to the lower pile 20 and a PC steel rod 40 for reinforcing the rigidity of the lower pile 20 ) Is installed.

The lower side embedding member 200 is embedded in the upper surface of the lower pile 20.

Particularly, in the embodiment of the present invention, the lower side embedding member 200 is formed to have a square block structure of a metal material so that it always has a correct direction in a state of being embedded in the lower pile 20. [

In addition, the outer circumferential surface of the lower side buried member 200 is formed to be exposed to the outside of the periphery of the lower pile 20, and the upper surface of the upper side buried member 100 The lower receiving groove 210 is downwardly recessed at a portion opposed to the upper receiving groove 110 formed at the bottom of the lower receiving groove 210 and a through hole penetrating through the bottom of the lower receiving groove 210 is formed at the bottom of the lower receiving groove 210, A hole 211 is formed.

The lower receiving groove 210 is provided at a portion where the end head portion 41 of the PC steel bar 40 installed along the longitudinal direction in the lower pile 20 is received, Except for the head part 41 of the PC steel bar 40, can be penetrated. The PC rigid bar 40 is moved along the longitudinal direction in the lower pile 20 through the bottom surface of the lower side embedding member 200 while the head portion 41 thereof is received in the lower receiving groove 210. [ .

In the embodiment of the present invention, the positioning guide member 400 is disposed in the lower receiving groove 210 of the upper receiving groove 110 of the upper side embedding member 100 and the corresponding lower side embedding member 200, Is further comprised.

The position guide member 400 is a structure that assists the positions of the upper pile 10 and the lower pile 20 to be exactly aligned with each other when the pile 10 is connected to the lower pile 20, 41, the lower end of which is screwed and fixed in the lower receiving groove 210, and the upper end of the lower receiving groove 210 is received in the upper receiving groove 110. Of course, although not shown, the position guiding member 400 may be configured such that an upper end thereof is screwed and fixed in the upper receiving groove 110, and a lower end thereof is received in the lower receiving groove 210.

Particularly, since a part of the upper circumferential surface of the position guiding member 400 is formed in a stepwise manner, a fastening operation using a tool such as a spanner can be easily performed. Further, the upper surface of the position guiding member 400 has a rounded spherical surface The positioning guide member 400 can be smoothly received in the upper receiving groove 110 while the upper pile 10 and the lower pile 20 are aligned with each other, It is more preferable that the upper surface can minimize the occurrence of damage such as scratching the bottom surface of the upper side embedding member 100.

In addition, the upper receiving groove 110 formed in each upper side embedding member 100 needs to be deeply recessed so that the projected upper end of the position guiding member 400 can be received.

The overlapped portions 120 and 220 are configured to match the upper side embedding member 100 and the lower side side embedding member 200 with each other. And a lower overlapping portion 220 formed on an outer circumferential surface of the lower side embedding member 200. Each of the fastening holes 121 and 221 is horizontally formed in the overlapping portion .

In particular, the lower overlapping portion 220 is formed as a step formed so that the upper end circumferential surface is recessed as compared with the lower end side, and the upper overlapping portion 120 is formed to protrude downward from the bottom surface of the upper side embedding member 100 And a protrusion that surrounds the upper circumferential surface of the lower overlapping portion 220. Although not shown, the upper overlapping unit 120 may be formed as a step and the lower overlapping unit 220 may be formed as a protrusion so as to be superimposed on each other.

The upper overlapping portion 120 and the lower overlapping portion 220 can be superimposed in the horizontal direction with each other. When the overlapping portions 120 and 220 overlap each other, By fastening the fastening member 300, the two overlapping portions 120 and 220 can be fastened together by the single fastening member 300, so that the fastening operation can be minimized.

That is, in order to connect the upper pile 10 and the lower pile 20 to each other in the related art, a portion where the two piles 10 and 20 are abutted is simultaneously wrapped by a connecting ring (not shown) It is necessary to fasten the ring and the upper pile 10 with bolts and to fasten the connecting ring and the lower pile 20 with bolts. However, in the present invention, Since the members 100 and 200 can be fastened together, the fastening operation time can be shortened as much as possible. The overlapped portions 120 and 220 according to the embodiment of the present invention are integrally provided in the embedding members 100 and 200 so that the embedding members 100 and 200 can prevent the PC steel bars 30 and 40 from being installed It is possible to perform not only the role of the conventional fixing nut but also the role of the conventional connecting ring at the same time, thereby reducing the number of components, thereby reducing the cost of logistics, the storage cost, and the manufacturing cost.

The embodiment of the present invention is characterized in that the overlapping surfaces 122 and 222 overlapping each other between the overlapping portions 120 and 220 constituting the embedding members 100 and 200 are formed to be inclined.

In other words, since the overlapping portions 120 and 220 can be superimposed in a wedge shape, the piles 10 and 20 can be always set in the right position while the coupling between the piles 10 and 20 progresses, So that it is possible to achieve a precise close connection by making progressive compression as the coupling progresses.

In addition, in the embodiment of the present invention, the lower end inner edge 123 of the upper overlapping portion 120 and the upper end edge 223 of the lower overlapping portion 220 are rounded. This structure prevents the corners 123 and 223, which overlap each other between the overlapping portions 120 and 220 at the time of hitting, from being damaged, and ensures a necessary space for overlapping the wedge shapes when overlapping each of the overlapping portions 120 and 220 to be.

Meanwhile, the structure of each of the overlapping portions 120 and 220 according to the embodiment of the present invention described above can not be formed only by the structure of the above-described placement jaws and projections.

In other words, although not shown, the upper overlapping portion 120 may be formed in a shape of "", and the lower overlapping portions 220 may be formed in a shape of "ㅗ" so as to be superimposed on each other. It is also possible to form a superimposed structure in a shape.

Next, the fastening member 300 is a member for fastening and fixing the overlapping portions 120 and 220 of the embedding members 100 and 200 to each other.

The fastening member 300 is composed of bolts and is configured to fasten the two overlapping portions 120 and 220 together while sequentially passing through the fastening holes 121 and 221 formed in the overlapping portions 120 and 220.

Of course, in the drawings according to the embodiment, the fastening member 300 is formed of a conventional bolt having a head portion. However, if necessary, the fastening member 300 may be formed of a flathead bolt, The head portion of the member 300 may be recessed into a region where the fastening hole 121 of the upper overlapping portion 120 is formed.

7 and 8, the reinforcing cap 500 surrounding the lower end of the upper pile 10 and the upper end of the lower pile 20 surrounds the corner of the upper portion of the lower pile 20, Are further provided as additional features.

Each of the reinforcing caps 500 maintains the respective embedment members 100 and 200 in a set position when concrete is cured for manufacturing the piles 10 and 20, In the state where the piles 10 and 20 are connected to each other when the pile 10 is moved and when the piles 10 and 20 are connected to each other, So as to reinforce the strength.

At this time, each of the reinforcing caps 500 may be configured to surround all portions except the portions where the embedding members 100 and 200 are installed.

Hereinafter, a process of connecting the upper pile 10 and the lower pile 20 according to the embodiment of the present invention will be described in more detail.

A plurality of upper embedding members 100 are embedded and fixed along the bottom surface of the upper pile 10 and a plurality of lower embedding members 200 are embedded along the upper surface of the lower pile 20, And each of the embedment members 100 and 200 is configured to be embedded in the piles 10 and 20 during the concrete curing process for manufacturing the piles 10 and 20.

The upper receiving groove 110 formed in the upper embedding member 100 is disposed to communicate with the lower surface of the upper pile 10 and the lower receiving groove 210 formed in the lower embedding member 200 is connected to the lower pile 20 As shown in Fig. At the same time, the end portions (31, 41) of the PC steel bars (30, 40) passing through the through holes (111, 211) are housed in the receiving recesses (110, 210) Other portions of the steel rods 30 and 40 are embedded along the longitudinal direction in the piles 10 and 20.

The lower end of the position guiding member 400 is fastened to the lower receiving groove 210 of each lower side embedding member 200 in the upper surface of the lower pile 20 provided as described above.

At this time, the upper end of the position guiding member 400 is protruded upward from the lower side embedding member 200.

Next, the prepared upper pile 10 is placed on the upper part of the lower pile 20, and then the upper pile 10 is moved downward to form a bottom surface of the upper pile 10 on the upper surface of the lower pile 20, .

At this time, in the process of moving the upper pile 10 downward, the lower side of the lower pile 20 in the upper receiving groove 110 of the upper side buried member 100 buried in the upper pile 10 The upper overlapping portion 120 protruding downward from the upper side embedding member 100 and the lower overlapping portion 220 of the lower side embedding member 200 The upper pile 10 is gradually moved downward while its position is adjusted so that the piles 10 are superimposed on each other.

The upper pile 10 is placed on the upper surface of the lower pile 20 while being superposed between the overlapped portions 120 and 220 formed in the respective embedment members 100 and 200 and guided by the position guiding member 400 do.

Particularly, in the process of placing the upper pile 10 on the upper surface of the lower pile 20, the upper pile 10 is seated at the correct position by the corresponding inclined structure between the overlapped portions 120 and 220, It is prevented that the seat 10 is tilted to one side or the seat 10 is horizontally twisted.

In the state where the upper pile 10 is seated on the upper surface of the lower pile 20 as described above, the positions of the fastening holes 121 and 221 formed in the respective embedding members 100 and 200 are aligned with each other.

In this state, the operator can tighten the two fastening holes 121 and 221 of the respective embedment members 100 and 200 with each other using the fastening member 300 so that the two piles 10 and 20 can be more stably coupled. The upper pile 10 is prevented from tilting or rotating in the horizontal direction.

As a result, it is possible to stably fix the connection between the upper pile 10 and the lower pile 20 without performing a separate welding operation due to the structure of the joint device of the PC steel bar integrated pile according to the present invention, 20 can be reduced by half compared with the conventional structure, so that the working time can be remarkably shortened.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Of course, such modifications are within the scope of the claims.

10. Upper pile 20. Lower pile
21. Fasteners 30, 40. PC rods
31,41. Head region 100. Upper side embedding member
110. Upper receiving grooves 111, 211. Through-hole
120. Upper overlap section 121, 221. Fastener
122,222. Overlapping surfaces 123, 223. edge
200. Lower side embedding member 210. Lower receiving groove
300. Fastening member 400. Positioning guide member
500. Reinforcement cap

Claims (8)

An upper side buried member formed to be embedded in the bottom surface of the upper pile and exposed to the outside of the peripheral side of the upper pile;
A lower side buried member embedded in and fixed to a position of the upper surface of the lower pile opposite to the upper side buried member and exposed to the outside of the peripheral side of the lower pile;
A pair of overlapping portions formed corresponding to the upper side embedding member and the lower side side embedding member and formed so as to overlap each other in the horizontal direction; And,
And a fastening member for fastening and fixing the overlapping portions of the respective embedding members to each other. The method according to claim 1,
Wherein the overlapping portion formed on the lower side embedding member is formed by a step formed by recessing the upper end side outer peripheral surface of the lower side embedding member with respect to other portions,
Wherein the overlapping portion formed on the upper side embedding member is formed as a protrusion for downwardly protruding the bottom surface portion of the upper side embedding member so as to surround the outer circumferential surface of the step. The method according to claim 1,
The overlapped portion formed in the upper side embedding member has a step formed by recessing the lower end side outer peripheral surface of the upper side embedding member with respect to other portions,
Wherein the overlapping portion formed on the lower side embedding member is formed as a protrusion for upwardly protruding the upper surface portion of the lower side embedding member so as to surround the outer circumferential surface of the step. The method according to claim 2 or 3,
Wherein the overlapping overlapping surfaces of the overlapping portions constituting the respective embedding members are formed to be inclined so that the overlapping portions overlap each other in the form of a wedge. The method according to claim 2 or 3,
Side edge of the overlapping portion constituting the upper side embedding member is formed to be rounded,
Wherein the corner of the end portion of the overlapping portion constituting the lower side embedding member is formed to be rounded on the side facing the upper side embedding member. The method according to claim 1,
The PC rigid bar is formed at the end of each of the receiving grooves so that the end of the PC rigid bar provided along the longitudinal direction of each pile is received in the opposite face between the upper side embedding member and the lower side embedding member, Through holes are formed respectively,
And a position guiding member is disposed between the upper side embedding member and the lower side embedding member and the lower end is fixed in the receiving groove of the lower side fastening member and the upper end is received in the receiving groove of the upper side fastening member. Joint of pile integrated with steel rods. The method according to claim 6,
Wherein a part of the upper circumferential surface of the position guiding member is formed in a stepped shape and the upper surface of the position guiding member is formed to form a rounded spherical surface. The method according to claim 1,
Wherein the reinforcing cap further comprises a reinforcing cap surrounding the lower end of the upper pile and the upper end of the lower pile so as to surround portions other than the portions where the respective embedding members are installed.
KR20130051898A 2013-05-08 2013-05-08 connecting device of Pretensioned spun High strength Concrete Piles KR20140132563A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105887877A (en) * 2014-12-25 2016-08-24 宿迁力引实业有限公司 X-shaped pin connector for prestressed concrete pipe piles
KR102065448B1 (en) * 2019-08-30 2020-01-13 박정기 Cast-in-place concrete pile using concrete precast block pipe and Construction method of concrete pile there of

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105887877A (en) * 2014-12-25 2016-08-24 宿迁力引实业有限公司 X-shaped pin connector for prestressed concrete pipe piles
KR102065448B1 (en) * 2019-08-30 2020-01-13 박정기 Cast-in-place concrete pile using concrete precast block pipe and Construction method of concrete pile there of

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