KR20170124436A - Joint mechanism and connection method for steel pipe - Google Patents
Joint mechanism and connection method for steel pipe Download PDFInfo
- Publication number
- KR20170124436A KR20170124436A KR1020167028611A KR20167028611A KR20170124436A KR 20170124436 A KR20170124436 A KR 20170124436A KR 1020167028611 A KR1020167028611 A KR 1020167028611A KR 20167028611 A KR20167028611 A KR 20167028611A KR 20170124436 A KR20170124436 A KR 20170124436A
- Authority
- KR
- South Korea
- Prior art keywords
- inner joint
- joint
- steel pipe
- engaging
- unit member
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 144
- 239000010959 steel Substances 0.000 title claims abstract description 144
- 238000000034 method Methods 0.000 title claims description 20
- 238000005304 joining Methods 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- 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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
-
- 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
Landscapes
- 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
Thereby simplifying the structure of connecting the pair of steel pipes and reducing the cost. The jointing mechanism of the pair of steel pipe piles 1A and 1B has inner joints 10A and 10B and outer joints 20 that are formed around the outer joints 10A and 10B. The outer joint 20 is composed of a plurality of unit members 21 arranged side by side around the inner joints 10A and 10B, The standard unit member 21A has the engaging convex portion 24 and engages with the engaging convex portion 24 on the inner joints 10A and 10B to prevent the standard unit member 21A from falling outward And a standard unit member 21A is formed on a wall surface of the engaging concave portion 14 so that the engaging convex portion 24 can be engaged with the engaging concave portion 14. [ Cut-out portions 15A and 15B that can be inserted into the cut-out portions 15A and 15B are provided.
Description
The present invention relates to a joining mechanism and a joining method of a steel pipe.
Steel pile piles are used as an example of steel pipes to constitute base piles for foundation installation, sheet piles for retaining piles, landslide suppression piles, pillars for piers. Long steel pipe piles are required to reach the solid ground below the soft ground. Due to the reasons such as manufacturing and transportation, steel pipe piles of several meters to several tens of meters manufactured by the factory are brought into the field, So as to form a predetermined length while connecting the steel pipe pile up and down.
As a mechanism for connecting steel pipe piles as described above,
The coupling mechanism is formed such that the inward circumferential grooves of the outer fitting member and the outward circumferential grooves of the inner fitting member have the same groove width and the inner fitting member is formed with the inward circumferential groove And the outward circumferential grooves are opposed to each other so that the key member previously embedded in the inward circumferential grooves is pushed toward the outward circumferential grooves and fitted over the inward circumferential grooves and the outward circumferential grooves so that the length of the steel pipe pile So that it is impossible to move relative to each other.
However, since the structure in which the key member is preliminarily housed in the inward peripheral groove and is pushed toward the outward peripheral groove at the time of connection is apt to complicate the structure, and the groove width capable of accommodating the entire key member in the inward peripheral groove is required, There is a problem in that the thickness of the fitting member becomes thicker.
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to simplify the structure of connecting a pair of steel pipes and to reduce costs.
A first feature of the present invention is a joint mechanism of a steel pipe, comprising: a first inner joint provided at one end of the steel pipe; a second inner joint provided at the other end of the steel pipe; And a second inner joint of the one of the steel pipes and a second inner joint of the other steel pipe adjacent to each other so as to connect the pair of the steel pipes, Wherein the engaging portion is provided on one of the outer periphery of each of the first inner joint and the second inner joint and the inner periphery of the outer joint, Wherein the first and second inner joints are provided with fitting portions for preventing the pair of steel pipes from moving relative to each other in the longitudinal direction of the steel pipe by fitting the first and second inner joints, Wherein the plurality of unit members are provided with an end portion on the first inside joint side and an end portion on the second inside joint side with an engaging convex portion Wherein the first inner joint and the second inner joint are each provided with an engagement concave portion engaged with the engagement convex portion to prevent the standard unit member from falling outwardly, And a cutout portion is provided in at least a part of a wall surface constituting the engaging concave portion so that the engaging convex portion of the standard unit member can be inserted into a position corresponding to the engaging concave portion.
Wherein a first inner joint provided at one end of one steel pipe and a second inner joint provided at the other end of the other steel pipe are adjacent to each other so as to provide an outer joint over the first inner joint and the second inner joint, A standard unit member having an engaging convex portion at an end portion on the first inside joint side and an end portion on the second inside joint side among a plurality of unit members constituting the joint are inserted through the cutout portion, The engaged portion can be engaged.
The standard unit member, which is provided around the first inner joint and the second inner joint through the cutout portion, is provided with a first inner joint and a second inner joint, while maintaining the engagement between the engagement portion and the engaged portion. The first inner joint and the second inner joint are slid in the circumferential direction of the steel pipe along the engaging recess provided in the second inner joint, thereby being disposed at predetermined positions of the first inner joint and the second inner joint.
Since the outer joint is constituted by a plurality of unit members which are large enough to lift the worker by using his / her hands, for example, the work of hanging up by a machine such as a crane becomes unnecessary, .
Therefore, it is not necessary to provide a mechanism for embedding the key portion as the engaging portion in advance, for example, in the outer key groove as the engageable portion, and to send it outwardly as in the conventional coupling mechanism. The thickness can be reduced and the material cost can be reduced. In addition, since the first inner joint and the second inner joint can be formed in the same shape, the machining cost can be reduced.
The second feature of the joining mechanism according to the present invention is that the plurality of unit members further include a closed unit member having a shape free from a step with the outer circumferential surface around the cutout portion when the unit members are disposed in the cutout portion, And a fixing mechanism for fixing the closed unit member to at least the first inside joint or the second inside joint.
The cutout portion is closed by securing the closing unit member to the first inside joint and the second inside joint. Also, the relative movement in the circumferential direction of the first inner joint and the second inner joint connected through the outer joint is also suppressed.
The third feature of the joint mechanism according to the present invention is that the cutout portion is composed of a first cutout portion provided in the first inside joint and a second cutout portion provided in the second inside joint, When the first inner joint of the one steel pipe and the second inner joint of the other steel pipe are adjoined to each other so as to connect the pair of steel pipes to the inner joint and the second inner joint, And a positioning mechanism for positioning the second cutout portion so as to face the longitudinal direction of the steel pipe is provided.
It is possible to easily position the first cutout portion and the second cutout portion so as to face each other along the longitudinal direction of the steel pipe by the positioning mechanism when connecting the pair of steel pipes.
According to a fourth aspect of the present invention, the positioning mechanism includes: a hole portion provided on an opposing face of each of the first inner joint and the second inner joint; And a positioning pin inserted into the hole portion.
A reliable positioning can be realized at a low cost by a simple structure such as a hole provided in the facing surface of each of the first inner joint and the second inner joint and a positioning pin inserted into the hole.
The fifth feature of the present invention is that the to-be-engaged portion is an outward peripheral groove provided on the outer periphery of each of the first inner joint and the second inner joint, and the engagement portion is formed on the inner periphery of the outer joint And the inner circumferential groove is engaged with the outer circumferential groove to prevent the pair of steel pipes from moving relative to each other in the longitudinal direction of the steel pipe.
It is not necessary to embed the key member in the inward peripheral groove beforehand as in the case of the conventional joining mechanism, so that the thickness of the outer joint can be reduced and the material cost can be reduced . In addition, since the first inner joint and the second inner joint can be formed in the same shape, the machining cost can be reduced.
According to a sixth aspect of the present invention, the engaging portion is an outer key portion provided on the outer periphery of each of the first inner joint and the second inner joint, and the engaged portion is provided on the inner periphery of the outer joint And the inner circumferential groove for preventing the pair of steel pipes from moving relative to each other in the longitudinal direction of the steel pipe by engaging the outer key portion.
It is not necessary to incorporate the key member in the inward peripheral groove in advance as in the case of the conventional joining mechanism, so that the thickness of the outer joint can be reduced and the material cost can be reduced . In addition, since the first inner joint and the second inner joint can be formed in the same shape, the machining cost can be reduced.
The seventh characteristic feature of the joint mechanism according to the present invention is that the first inner joint and the second inner joint are formed by a straight core steel pipe and the joint portion of the straight core steel pipe is formed by the first inner joint and the second inner joint And is disposed at a position that does not overlap with the cutout portion of the joint.
Straight steel tubes are manufactured using sheet rolling. The copyright processing method is cheaper than the ring forging method which manufactures the seamless steel pipe. By forming the first inner joint and the second inner joint from the straight core steel pipe, the first inner joint and the second inner joint can be obtained at low cost.
However, the straight core steel pipe has a joint portion along its longitudinal direction and is not uniform in the circumferential direction like a seamless steel pipe, so that the same rigidity can not be obtained in the circumferential direction, so that it is resistant to pressure and distortion.
In addition, the circumferential portion in which the cutout portion is formed of the first inner joint and the second inner joint is low in rigidity as compared with the other circumferential portions because the material is small at that portion.
Therefore, the cut-out portion is provided in the first inner joint and the second inner joint so as to be positioned not at the position where the joint portion of the straight deep steel pipe extends.
It is possible to prevent the rigidity of the first inner joint and the second inner joint from being excessively lower than those of the other portions by preventing the circumferential portion formed with the cutout portion from overlapping with the joint portion along the longitudinal direction of the straight steel tube .
The eighth characterizing feature of the joint mechanism according to the present invention resides in that the outer joint is formed of a straight core steel pipe, and the joint portion of the straight core steel pipe is disposed in the standard unit member.
As described above, the straight core steel pipe can be produced at a much lower cost than the seamless steel pipe. Therefore, the outer joint can be obtained at a low cost by forming the outer joint into the straight core steel pipe.
The closed unit member of the outer joint is disposed in the cutout portion of the first inner joint and the second inner joint. If the joining portion is disposed at a position overlapping the cutout portion, the rigidity is lowered in the cutout portion where the closed unit member having the joining portion is disposed.
Therefore, the joint is provided in the standard unit member.
By preventing the closing unit member and the joining portion from overlapping along the longitudinal direction of the straight steel pipe, it is possible to prevent a part of the joining mechanism from being excessively lower in rigidity than the other portions.
The first aspect of the connecting method according to the present invention is a connecting method for connecting a pair of steel pipes using a joint mechanism having any one of the first to seventh features, A first inner joint provided adjacent to the other inner joint provided at the other end of the other steel pipe; Positioning a first cutout portion provided in the first inner joint and a second cutout portion provided in the second inner joint so as to face each other along the longitudinal direction of the steel pipe; Wherein the first inner joint portion and the second inner joint portion are provided with an outer joint extending along the first inner joint portion and the second inner joint portion, And the second cutout portion and the second cutout portion, and a second unit cutout portion having a second unit cutout portion and a second cutout portion, Engaging an engaged portion for preventing the relative pair of steel pipes from moving relative to each other in the longitudinal direction of the steel pipe by engaging the engaging portion provided on either one of the pair of steel pipes with the engaging portion provided on the other side; Sliding the engaging convex portion in the circumferential direction of the steel pipe along the engaging concave portion provided in the first inner joint and the second inner joint while maintaining the engagement between the engaging portion and the engaged portion; Out portion of the plurality of unit members constituting the outer joint is inserted into the cutout portion, the closed unit member having a shape free from a step difference from the outer circumferential surface around the cutout portion is inserted into the first cutout portion and the second cutout portion Thereby engaging the outward circumferential groove and the inward key portion, or engaging the outward key groove and the inward circumferential groove; And fixing the closed unit member to at least the first inner joint or the second inner joint.
In the second aspect of the connecting method according to the present invention, in positioning the first cutout portion and the second cutout portion so as to face each other along the longitudinal direction of the steel pipe, the first inner joint and the second inner side Wherein the closed unit member is disposed in advance in one of the first cut-out portion and the second cut-out portion before adjoining the adjacent one of the first cut-out portion and the second cut- And positioning the out portion so as to oppose along the longitudinal direction of the steel pipe and separating the closed unit member once after positioning.
By using the closed unit member used in the subsequent step in positioning the first cutout portion and the second cutout portion so as to face each other along the longitudinal direction of the steel pipe, a separate structure for the positioning is unnecessary .
1 is an explanatory view of a steel pipe and a joint mechanism.
2 is an explanatory view of the inner joint.
3 is a side cross-sectional view of the inner joint.
Fig. 4 is an explanatory view of the engagement of the steel pipe pile according to the unit member.
5 is a side cross-sectional view for engaging a steel pipe pile according to a unit member.
FIG. 6 is an explanatory view of engagement of a steel pipe pile according to a unit member.
7 is a side cross-sectional view illustrating engagement of a steel pipe pile according to a unit member.
8 is a plan view of the engagement of the steel pipe pile according to the unit member.
Fig. 9 is an explanatory view of the closure of the cutout portion. Fig.
10 is a side cross-sectional view of the cutout portion for closing;
11 is a plan sectional view for closing the cutout portion.
12 is a side cross-sectional view of an inner joint according to another embodiment.
13 is a side cross-sectional view of an inner joint according to another embodiment.
14 is an explanatory diagram of a joint mechanism of a steel pipe according to another embodiment.
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a joint mechanism and a connecting method of a steel pipe according to the present invention will be described with reference to the drawings.
Fig. 1 shows an example of a steel pipe, which is a cylindrical
The steel pipe piles 1 (1A and 1B) are constituted by welding inner and
2, the inner joint 10 has an inner
On the outer periphery of the inner
As shown in Fig. 1, the wall surfaces constituting the engaging
The inner joint 10A and the inner joint 10B are formed with
3, when the inner joint 10A and the inner joint 10B are connected to each other, the
As shown in Fig. 1, the outer joint 20 has an outer diameter slightly larger than the outer diameter of the
On the other hand, the eighth division is an example, and the number of the
The inner circumference of the outer joint 20 constituted by the eight
Four
The remaining four
The
In the present embodiment, four
Next, referring to Figs. 2 to 11, in a method of putting the
The jointing mechanism described above is used for connecting the pair of steel pipe piles 1A and 1B.
First, as shown in Fig. 1, Fig. 2 and Fig. 3, the inner joint 10A provided at the upper end of the one-sided
Next, as shown in Figs. 4 and 5, the
Then, as shown in Figs. 6, 7 and 8, the
Next, as shown in Figs. 9 and 10, the
Finally, as shown in Figs. 10 and 11, by fixing the
The inner joint 10A and the inner joint 10B and the outer joint 20 are engaged with the outer periphery of the inner joint 10A and the inner joint 10B, The present invention is not limited to the structure in which the engaging portion is provided with the outer periphery of each of the inner joint 10A and the inner joint 10B, And the to-be-engaged portion is provided on the inner periphery of the outer joint 20 so that the pair of steel pipe piles 1A and 1B are engaged with each other in the longitudinal direction of the
The inner joint 10A and the inner joint 10B are provided with the
The
A small diameter portion and a large diameter portion in which one end is fitted to the other end is provided on the opposing face of each of the inside joint 10A and the inside joint 10B as shown in Fig. May be provided along the circumferential direction.
Further, although not shown,
The
As shown in Figs. 1, 2, and 3, the inner joint 10B provided at the lower end of the inner joint 10A provided at the upper end of the one-sided
At this time, one or a plurality of
On the other hand, one or a plurality of
After the positioning, the temporarily closed fixed
Then, as shown in Figs. 6, 7 and 8, the
Next, as shown in Figs. 9 and 10, the
Finally, as shown in Figs. 10 and 11, by fixing the
The
In the above-described embodiment, the inner joint 10 and the outer joint 20 are formed by machining the cylindrical bodies of the main mandrel into predetermined shapes, respectively. However, the present invention is not limited to these embodiments. For example, as shown in Fig. 14, the inner joint 20 and the outer joint 20 may be formed of a straight core steel pipe. On the other hand, the
The straight steel core pipe is manufactured by using a plate-making method in which a flat plate-like steel plate is formed into a cylindrical shape by using a large roll or press, and the
However, the straight core steel pipe has the
In addition, the circumferential portion in which the
Therefore, the
The circumferential portion in which the
On the other hand, the inner joint 10A and the inner joint 10B are preferably connected such that the respective
The
Therefore, the
By preventing the
On the other hand, among the plurality of
The jointing mechanism of the steel pipe according to the present invention may be used for connecting steel pipes such as steel pipe sheet piles for soil retention, landslide suppressing piles, and pillar columns in addition to foundation piles for installation of structures.
The above-described embodiments are all examples of the present invention, and the present invention is not limited to the above description, and the specific constitution of each part can be appropriately modified and designed within the range in which the action and effect of the present invention is exerted.
1 Steel Pipe Pile (Steel Pipe)
2 tubular body
10 internal joint
11 base portion
12 inner fitting portion
13 Outer circumferential groove (pawl portion)
14 engaging recess
15 cutout
16 volt hole
18 hole
19 pin
20 Outer joint
21 Unit Units
21A Standard unit absence
21B Closure unit member
22 opening
23 Inward key part (engagement part)
24 engaging convex portion
33 volts
Claims (10)
A first inner joint provided at one end of the steel pipe and a second inner joint provided at the other end; And
Wherein the first inner joint of one of the steel pipes and the second inner joint of the other steel pipe are adjacent to each other so as to connect the pair of the steel pipes and the first inner joint and the second inner joint of the other steel pipe are adjacent to each other, And an outer joint provided,
Wherein the engaging portion is provided on one of the outer periphery of each of the first inner joint and the second inner joint and the inner periphery of the outer joint and the engaging portion is engaged on the other side, And a to-be-engaged portion for preventing relative movement in the lengthwise direction of the frame,
Wherein the outer joint is composed of a plurality of unit members arranged in parallel around the first inner joint and the second inner joint,
Wherein the plurality of unit members include a standard unit member having an end on the first inside joint side and an engaging convex portion on the end on the second inside joint side,
Wherein the first inner joint and the second inner joint include engagement recesses that engage with the engagement convex portion to prevent the standard unit member from falling outwardly,
Wherein at least a part of the wall surface constituting the engaging concave portion includes a cutout portion capable of passing through the engaging convex portion of the standard unit member to a position corresponding to the engaging concave portion.
Wherein the plurality of unit members further comprise a closed unit member having a shape free from a step with an outer circumferential surface around the cutout portion when disposed in the cutout portion,
And a fixing mechanism for fixing the closed unit member to at least the first inside joint or the second inside joint.
Wherein the cutout portion comprises a first cutout portion provided in the first inner joint and a second cutout portion provided in the second inner joint,
When the first inner joint of the one steel pipe and the second inner joint of the other steel pipe are adjoined to the first inner joint and the second inner joint so as to connect the pair of steel pipes, Out portion and the second cut-out portion are arranged to face each other along the longitudinal direction of the steel pipe.
Wherein the positioning mechanism includes: a hole portion provided on an opposing surface of each of the first inner joint and the second inner joint; And a positioning pin inserted into the hole portion.
Wherein said engageable portion is an outward peripheral groove provided on an outer periphery of each of said first inner joint and said second inner joint,
Wherein the engaging portion is an inward key portion provided on an inner periphery of the outer joint to prevent the pair of steel pipes from moving relative to each other in the longitudinal direction of the steel pipe by engaging with the outward peripheral groove.
Wherein the engaging portion is an outer key portion provided on an outer periphery of each of the first inner joint and the second inner joint,
Wherein the engageable portion is an inner circumferential groove provided on the inner periphery of the outer joint for preventing the pair of steel pipes from relatively moving in the longitudinal direction of the steel pipe by engaging the outer key portion. Instrument.
Wherein the first inner joint and the second inner joint are formed as a straight core steel pipe,
And the joint portion of the straight steel tube is disposed at a position that does not overlap the cut-out portion of the first inner joint and the second inner joint.
Wherein the outer joint is formed as a straight steel pipe,
Wherein a joint portion of the straight steel pipe is disposed in the standard unit member.
A first inner joint provided at one end of one steel pipe and a second inner joint provided at the other end of the other steel pipe;
Positioning a first cutout portion provided in the first inner joint and a second cutout portion provided in the second inner joint so as to face each other along the longitudinal direction of the steel pipe;
Wherein the first inner joint portion and the second inner joint portion are provided with an outer joint extending along the first inner joint portion and the second inner joint portion, Through the first cut-out portion and the second cut-out portion, the standard unit member having the engaging convex portion,
An engaging portion provided on one of the outer periphery of each of the first inner joint and the second inner joint and the inner periphery of the outer joint and the engaging portion provided on the other side, Engaging a engaged portion to prevent relative movement of the steel pipe in a longitudinal direction thereof;
Sliding the engaging convex portion in the circumferential direction of the steel pipe along the engaging concave portion provided in the first inner joint and the second inner joint while maintaining the engagement between the engaging portion and the engaged portion;
Out portion of the plurality of unit members constituting the outer joint is inserted into the cutout portion, the closed unit member having a shape free from a step difference from the outer circumferential surface around the cutout portion is inserted into the first cutout portion and the second cutout portion Thereby engaging the outward circumferential groove and the inward key portion, or engaging the outward key groove and the inward circumferential groove; And
And fixing the closed unit member to at least the first inner joint or the second inner joint.
And positioning the first cutout portion and the second cutout portion so as to face each other along the longitudinal direction of the steel pipe,
The closing unit member may be disposed in advance in one of the first cutout portion and the second cutout portion before the first inner joint and the second inner joint are adjacent to each other,
Positioning the first cut-out portion and the second cut-out portion so as to face each other along the longitudinal direction of the steel pipe using the closed unit member, and removing the closed unit member once after the positioning Wherein the connecting means comprises:
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015028870 | 2015-02-17 | ||
JPJP-P-2015-028870 | 2015-02-17 | ||
PCT/JP2015/085888 WO2016132648A1 (en) | 2015-02-17 | 2015-12-22 | Joint mechanism and connection method for steel pipe |
JP2015250212A JP6594193B2 (en) | 2015-02-17 | 2015-12-22 | Steel pipe joint mechanism and connection method |
JPJP-P-2015-250212 | 2015-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20170124436A true KR20170124436A (en) | 2017-11-10 |
Family
ID=56761081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020167028611A KR20170124436A (en) | 2015-02-17 | 2015-12-22 | Joint mechanism and connection method for steel pipe |
Country Status (4)
Country | Link |
---|---|
US (1) | US20180119380A1 (en) |
JP (1) | JP6594193B2 (en) |
KR (1) | KR20170124436A (en) |
SG (1) | SG11201608073UA (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111809649B (en) * | 2020-07-02 | 2021-08-13 | 中交第三航务工程局有限公司 | Offshore pile splicing anticorrosion process for offshore wind power foundation steel pipe pile |
CN112302051A (en) * | 2020-11-06 | 2021-02-02 | 中铁工程装备集团有限公司 | Mechanical vertical shaft structure and construction method thereof |
CN113737785A (en) * | 2021-09-17 | 2021-12-03 | 南京新核复合材料有限公司 | Fiber reinforced polymer tubular pile connecting joint |
USD988481S1 (en) * | 2021-12-15 | 2023-06-06 | Kubota Corporation | Mechanical joint |
JP7496559B2 (en) | 2022-07-11 | 2024-06-07 | 株式会社ユニテック | Steel pipe member connection structure and steel pipe member connection method |
-
2015
- 2015-12-22 JP JP2015250212A patent/JP6594193B2/en active Active
- 2015-12-22 US US15/302,056 patent/US20180119380A1/en not_active Abandoned
- 2015-12-22 KR KR1020167028611A patent/KR20170124436A/en not_active Application Discontinuation
- 2015-12-22 SG SG11201608073UA patent/SG11201608073UA/en unknown
Also Published As
Publication number | Publication date |
---|---|
US20180119380A1 (en) | 2018-05-03 |
SG11201608073UA (en) | 2016-11-29 |
JP6594193B2 (en) | 2019-10-23 |
JP2016153593A (en) | 2016-08-25 |
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