KR101656691B1 - Submarine structure construction method using hinge type head fixing apparatus - Google Patents

Submarine structure construction method using hinge type head fixing apparatus Download PDF

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Publication number
KR101656691B1
KR101656691B1 KR1020150057105A KR20150057105A KR101656691B1 KR 101656691 B1 KR101656691 B1 KR 101656691B1 KR 1020150057105 A KR1020150057105 A KR 1020150057105A KR 20150057105 A KR20150057105 A KR 20150057105A KR 101656691 B1 KR101656691 B1 KR 101656691B1
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South Korea
Prior art keywords
hinge
hole
extension
offshore wind
head
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KR1020150057105A
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Korean (ko)
Inventor
김성환
조두현
최해곤
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(주)동명기술공단종합건축사사무소
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/50—Anchored foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/52—Submerged foundations, i.e. submerged in open water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/003—Injection of material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details

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  • Engineering & Computer Science (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)
  • Structural Engineering (AREA)
  • Wind Motors (AREA)

Abstract

In the case where the foundation of an offshore wind power of a large structure such as an offshore wind power generator capable of securing sufficient load supporting ability while being able to quickly install a foundation structure on a ground (including water) is fixedly installed on a seabed ground using piles, The present invention relates to a method of installing an offshore wind turbine foundation using a hinge-head fixing device capable of more effectively integrating the hinge-head fixing device with the sea bottom portion. A plurality of extension rods extending through the through holes of the pile head portion and extending one side to the upper extension through hole and the other side extending into the pile head; A hinge fastening port hingedly connected to the extension rod; And a vertical bar connected to the hinge fixture and extending to the top of the pile head.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of constructing a foundation for a wind turbine using a hinge-

The present invention relates to a method of installing an offshore wind turbine foundation using a hinge-head fixing apparatus, and more particularly, to a method of installing an offshore wind turbine foundation on a sea- And more particularly, to a method of constructing an offshore wind force base using a hinge-head fixing apparatus capable of more effectively integrating a tofu with the base of the sea.

The wind turbine generating power using the wind is constructed so that the blade can be installed on the rotating shaft of the generator and the power can be generated by using the rotational force generated by the rotation of the blade by the wind.

Such a wind turbine is a device for converting wind energy into electric energy, usually composed of a blade, a transmission, and a generator, and rotates a blade of a wind turbine, and generates electric power by rotating the blade.

Here, the blade is a device for converting wind energy into mechanical energy by being rotated by the wind, and the transmission device transmits the rotational force generated by the blade to the transmission gear through the central rotation axis and increases to the rotation speed required by the generator, The generator is a device that converts the mechanical energy generated by the blade into electric energy.

Such a wind power generation system is easy to operate and manage because it is simple in construction and installation, and can be unmanned and automated. In the past, wind power structures were mainly located on land, but due to problems such as wind resource capacity, aesthetics, and location constraints, it is in recent trends to build a large scale wind farm on the sea. However, there is a need for a safe installation method for blades, transmissions, and generators to be installed in a high position in order to construct a wind turbine structure safely at sea.

Therefore, the offshore wind power generation structure is largely divided into a turbine and a foundation. In this case, the turbine basically applies the same technology as a terrestrial wind turbine. These offshore wind power structures have a life span of about 20 years, and wind turbines of 3 ~ 5MW or more, which are larger than those on land, are applied.

Each component of this offshore wind power structure is designed and coated to prevent corrosion damage due to salinity.

The foundation can be divided into four representative types.

Concrete caisson type is used in the early offshore wind power plant because it is easy to make and install. It can be used at a relatively shallow depth of 6 ~ 10m and its position is maintained by its own weight and friction force of the seabed ground. do. At this time, the base diameter of concrete caisson type is 12 ~ 15m.

The mono-pile type is the most common type of offshore wind farm complex currently in use. It can be installed at a depth of 25 to 30 meters and can be used for driving or drilling large diameter piles on the sea floor. Drilling) is used for large-scale complex. At this time, the base diameter of the monofile type is 3 to 3.5 m.

Jacket type is a type that is showing great interest in the present state of the offshore wind farm and can be installed at a depth of 20 ~ 80m, supported by a jacket type structure and fixed to the sea floor by piles or piles to be. It is a large-scale ocean structure, has high track record and high reliability, and is economically advantageous when used in a large-scale complex construction like a mono-pile type.

Floating type is a mandatory task for future deep-sea wind power generation, and many wind turbine companies are studying to be able to install at depth of 40 ~ 900m.

FIG. 1A shows an example of the conventional offshore wind force base construction.

The offshore wind force base portion is made of a precast concrete structure. The leg portion 61 is formed on the bottom of the tower, and the bucket portion 62 is supported on the bottom surface of the leg portion.

At this time, a hole (not shown) for constructing the mono-pile 40 is previously formed in the bucket part 62, and a perforation hole is formed in the bottom of the seabed along the hole by using an auger hole drilling machine 63.

Thereafter, the final perforator 63 is removed, and the monofilament 40 (not shown) is inserted into the perforation hole and the grouting material 64 is pressure-dispersed in the hole so that the monofilament 40 and the base are integrally formed with each other So that the load can be distributed and supported.

However, if such a method is used, it is required to operate a perforator at the seabed, and it can not effectively cope with the pulling force generated in file construction such as a mono file. Thus, in constructing a foundation of a large structure such as a offshore wind turbine, Construction methods were inevitably required.

FIGS. 1B and 1C illustrate a method of installing an offshore wind force base and a band type fixing device in order to solve the problem of the conventional construction method.

That is, a base 10 for a support structure, through which the guide pipe 11 passes, is manufactured and placed on the ground. Placing the pile (20) on the ground along the guide tube so that the head is positioned inside the guide tube (11); Fixing the pile (20) inside the guide tube (11) using a fixing device (30); And inserting a guiding tube cap (40) on the guide tube (11) to seal the guiding tube and press the grouting material (50) through the guiding tube cap into the guiding tube and the bottom of the base part of the supporting structure ; ≪ / RTI >

In the end, the offshore wind force base supporting the load on the ground while supporting the load from the lower portion of the large structure such as an offshore wind power generator is manufactured as a base portion for the precast support structure, , Screw files, etc.), but the base portion of the support structure can be fixed directly to the ground using a screw file.

At this time, the screw file is constructed by using a guide tube previously formed in a through hole formed in a base portion, and a base for a file and a support structure is fixed using a band-type fixing device so that a head of the file can be fixed inside the guide tube So that they are fixed to each other.

After the file is integrated with the base for the support structure by the band type fixing device 30, the guide pipe 40 is put on the guide pipe so that the guide pipe is closed, the grouting material 50 is press- And the grouting material is press-fitted into the ground under the guide pipe to reinforce the disturbed ground G under the base 10 of the supporting structure while the pile is being constructed. However, in the band type fixing device 30 alone, There is a problem in that it can fall.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a hinge-head fixing device capable of rapidly and stably installing an offshore wind force base supporting a load at a lower portion of a large structure, And to provide a method of constructing a foundation of a wind turbine.

In order to achieve the above technical object

First, the prefabricated offshore wind power bases are fabricated, and the offshore wind power bases are fixed to the ground by piles (steel pipe files, screw files, etc.).

The file Pile is inserted into the upper extension through hole formed in the base of the offshore wind power. Thus, the file and the offshore wind power base are fixed to each other by using a hinge-head fixing device so that the head of the file can be fixed inside the upper extension through-hole.

Second, the upper extension through hole is formed to penetrate the base portion of the offshore wind power, and is constituted by a bottom through hole exposed to the bottom surface of the offshore wind power base portion and an extended top portion continuously formed on the top surface of the offshore wind power base portion . At this time, the extended upper end portion is expanded to a diameter larger than the diameter of the bottom through hole so that a space for expanding the expanding rod of the hinge head fixing apparatus can be secured.

At this time, a plurality of protruding guide members are formed on the inner side surface of the guide pipe for forming the bottom through-hole, and a reinforcing bar provided in the space excluding the space where the hinge- And is exposed.

Third, the hinge-head fixing device is horizontally inserted horizontally into a through-hole formed in a pile head, one side of which is extended to the outside of the pile head, and the other end of which is extended to the inside of the pile head is hinge- And a vertical bar connected to the top of the pile head.

As the vertical bar is lifted up and down, the extension bar inserted into the through hole is folded and extended horizontally with respect to the hinge fixing port, and the horizontally extending extension bar is spread out into the extended upper end space.

Fourth, the upper cap is put on the upper cap so that the upper extension through-hole is closed with the hinge-head fixing device so that the expansion rod is unfolded, and the grouting material is press-fitted into the upper cap to form the upper expansion hole and the ground below the base of the off- The grouting material is press-fitted so as to fill up the upper expansion through hole and to reinforce the disturbed ground below the base of the offshore wind power.

According to the present invention, a large supporting structure such as a row wind turbine generator can be installed on the ground of the seabed so as to be installed more quickly. However, it is possible to install multiple files instead of a mono file format, thereby effectively securing the supporting performance.

In addition, when a file is installed in the basement of a wind turbine, it is installed directly on the ground in case of using a screw file. Therefore, there is no need to double work to insert a file into a perforation hole after a separate perforation hole operation. It is possible to dramatically shorten it.

Also, since the disturbed ground below the foundation of the support structure is reinforced by press fitting of the grouting material by pile construction, the foundation for the support structure can be stably fixedly installed.

In addition, since the pile is fixed to the base portion of the support structure by using the hinge-head fixing device in the upper expansion hole formed in the base portion of the off-shore wind force manufactured by the pre-cast method, and then integrated by the grouting material, And the file can be effectively settled and integrated. The base of the offshore wind force acts as a base foundation, and the pile integrated in the base of the offshore wind force supports the base of the offshore wind power on the ground so that it can have a resistance against bending moment action.

Further, the file is integrated with the foundation for the support structure by the guide pipe and the grouting material, so that the resistance against the punching shear force of the file can be secured to a greater extent.

FIGS. 1A and 1B are a front view of a foundation for a conventional offshore wind power structure,
FIGS. 2A, 2B, and 2C are a perspective view and a functional diagram of the hinge-head fixing apparatus of the present invention;
FIGS. 3A, 3B and 3C are views showing the construction of a pile of the present invention, a hinge-head fixing device and an offshore wind-
FIGS. 4A, 4B, 4C, and 4D are flowcharts of a method for installing an offshore wind force base using the hinge-head fixing apparatus of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[The hinge-head fixing apparatus 300 of the present invention]

2A, 2B, and 2C are a perspective view and a functional diagram of the hinge-head fixing apparatus 300 of the present invention.

The hinge-head fixing device 300 is inserted into the through-hole 311 formed in the pile head 310 and has one end extended to the outside of the pile head, and the other end of the pile- A hinge-connected hinge fixing port 320 and a vertical bar 330 connected to the hinge fixing port and extending to the top of the pile head.

2A, the pile head 310 is formed so that the through hole 311 extends up and down as a head portion (upper end) of the pile 200 as shown in FIG. 2A. And the reinforcing bars are inserted into the unflatted space S1.

The hinge fixture 320 includes a cylindrical body 321 having a predetermined diameter and through which the vertical bar 330 is inserted, a male hinge groove 322, a hinge hinge pin 323, (324) and a hinge connection block (325).

In other words, as shown in FIG. 2B, a plurality of male hinge grooves 322 formed in the hinge retaining bar 323 are formed on the body 321, and the other end of the extension rod 340 is inserted into the hinge retaining rod 323 The hinge connection block 325 is formed at one end of the arm hinge plate 324 and the other end is inserted and fixed to the end of the extension rod 340.

As shown in FIG. 2C, it can be seen that the extension rod 340 is rotatable with respect to the hinge pin 323 of the male hinge groove in the hinge fixing hole 320.

2A, the hinge fixation hole 320 is folded so that the extension rod 340 can be inserted into the pile head 310, is inserted into the pile head 310 using the vertical bar 330 ,

The extension rod is set to pass through the through hole,

When the vertical rod 330 is lifted upward, the extension rod 340 is hooked on the through hole 311 and rotates to extend horizontally,

As shown in FIG. 3A, it can be seen that the horizontally extending extension rod 340 can be expanded into the extended upper end space S.

[Offshore wind power base 100 of the present invention]

FIGS. 3A, 3B, and 3C show construction drawings of the file 200, the hinge-top fixing device 300, and the offshore wind force base 100 of the present invention.

The offshore wind turbine foundation 100 of the present invention is a prefabricated prefabricated structure used for installing a large structure on a submarine ground such as an offshore wind power generator.

The PILE 200 for fixing the offshore wind turbine foundation 100 to the ground G may be a steel pipe, and the present invention will be described with reference to a screw file.

That is, the offshore wind power foundation 100 is first placed on the seabed ground G and a plurality of top extension through holes 110 are formed on the offshore wind power foundation 100.

Specifically, as shown in FIG. 3A,

First, the offshore wind force base 100 is a circular plate structure having a predetermined thickness, for example, and a center holder 130, on which a tower of an offshore wind power generator can be inserted, can be formed at the center.

A plurality of upper expansion through holes 110 are formed in the base portion 100 of the offshore wind power generator 100 so that the piles 200 are inserted into the foundation 100. The upper expansion through holes 110 are formed along the outer periphery of the offshore wind power base 100 .

At this time, the upper extension through hole 110 is formed to penetrate the base of the offshore wind power, and is formed continuously with a bottom through-hole 111 and a bottom through-hole 111 exposed to the bottom surface of the off- And a guide pipe 120 inserted into the exposed extended upper end 112 and the bottom through hole 111 and extending to the lower portion of the offshore wind force base.

The pile 200 is guided by the guide pipe 120 from the upper part of the upper extension through hole 110 to be installed in the ground and the upper extension through hole 110 And the head portion of the pile 200 is integrated with the offshore wind power base 100. [

A guide member 121 is formed on the inner side surface of the guide pipe 120 so as to protrude from the guide pipe 120. [ .

The extended upper end portion 112 is extended to a diameter larger than the diameter of the bottom through hole so that a space (extended upper end space S) in which the extension rods 340 of the hinge head fixing apparatus 300 can be unfolded And the inner reinforcing bars 350 of the offshore wind force base are exposed.

Further, the guide pipe 120 is formed so as to protrude to the bottom of the bottom of the offshore wind force base 100. The lower portion of the guide pipe 120 is installed in such a manner that it is embedded in the ground G by the weight of the offshore wind force base 100 when the offshore wind power foundation 100 is first placed on the seabed ground G .

As shown in FIG. 3B, the pile head 310 is inserted into the space S1 in which the inner reinforcing bar formed in the extended upper end 112 is not inserted.

The extension bar 340 is inserted into the through hole 311 formed in the pile head 310 by using the vertical bar 330 so that the hinge fixing hole 320 is hinged to insert the extension bar 340, So that the extension rod 340 can extend horizontally between the inner reinforcing bars of the extended upper portion 112.

In the state where the extension rod 340 is horizontally extended between the inner reinforcing bars of the extended upper end portion 112 and the upper extension hole is sealed using the upper cap 400, And the head of the pile 200 is integrated into the offshore wind force base 100 by injecting the pile into the expansion through hole 110.

In other words, the upper cap 400 is formed in a tubular shape having an open bottom and a closed upper surface so as to cover the upper extension through hole 110, and a flange is formed at the lower part to be fixed to the upper surface of the base plate for the support structure.

In addition, the grouting re-injection hole 410 and the discharge hole 420 are formed to connect the injection pipe and the discharge pipe to the injection hole and the discharge hole, so that the grouting material is separated from the inside of the upper cap 400, So that it can be press-fitted to the ground below the wind force base portion 100.

The grouting material is used to embed and fix the pile 200 in the upper expansion through hole 110 and to reinforce the disturbed ground by pressing the grouting material into the disturbed ground below the bottom of the offshore wind force base 100 And grouting material is also filled in the guide pipe 120.

At this time, the file 200 as a file is rotated and press-fitted into the ground G along the guide pipe 120 while being rotated by using an augering device (not shown) having a screw (helical rotary blade) formed on the outer circumferential surface of the steel pipe, do.

If the file 200 is press-fit, the file can be constructed with one push-in construction. Therefore, the workability and workability are greatly improved compared with the conventional method in which the file is separately formed after forming the perforation hole.

As a result, the offshore wind power foundation 100 acts as a foundation foundation, and the pile 200 integrated in the foundation for the support structure is made to support the base portion of the support structure on the ground so that it can resist the bending moment action .

Further, the file 200 is integrated with the base for the supporting structure by the guide pipe 120 and the grouting material described later, thereby securing a greater resistance against the punching shear force of the file.

[Manufacturing and Construction Method of Offshore Wind Turbine 100 of the Present Invention]

FIGS. 4A to 4D show in order the steps of manufacturing and installing the base part of the support structure of the present invention.

First, as shown in FIG. 4A, an offshore wind power base 100 is manufactured in advance in a land-based manufacturing facility, and is loaded on a barge.

Thus, the ground is formed as a seabed ground, and such a seabed ground is prepared in advance so that the offshore wind power base 100 can be seated through dredging, sandstone picking, or the like.

The offshore wind power base 100 is lifted by using a floating crane mounted on the barge, and is seated on the seabed ground using its own weight.

Since the guide tube 120 previously installed in the offshore wind power base 100 is installed in advance, the guide tube 120 is first touched to the seabed ground so that the offshore wind power base 100 can be stably placed on the seabed ground .

4B, when the offshore wind power base 100 is seated on the seabed ground, the pile 200 is lifted along the guide tube 120 of the offshore wind power base 100, (G).

Such a file 200 is constructed so that the tofu is located inside the upper extension through hole 110 and cutting is possible if necessary.

Next, as shown in FIG. 2A, the file 200 is installed on the offshore wind power foundation 100 by using the hinge head fixing device 300 in the upper expansion through hole 110.

The hinge-head fixing apparatus 300 is configured such that the extension bar 340 is inserted into the through hole 311 of the pile head 310 in advance and is set in the upper extension through-hole 110 in a folded state, It is preferable to extend the extending bar horizontally in the extended through hole 110. [

Next, as shown in FIG. 4C, the upper cap 400 is installed on the upper surface of the upper extension through hole 110. The upper cap 400 is installed to close the upper extension through hole 110 and the grouting material injection hole 410 and the discharge hole 420 are formed so that the grouting material can be inserted.

When a grouting material such as cement grout material is pushed into the upper cap 400 from which foreign matters have been removed by using a compressor in the barge, grouting material is press-fitted into the disturbed ground in the upper cap and the lower part of the off- So that the ground is also reinforced.

4D, when the final grouting material is cured, the offshore wind power base and the pile 200 are integrated with each other to complete the construction of the offshore wind power base, and the tower 510 is installed on the center holder portion 130 And the blade 530 and the nacelle 520 are mounted on the tower 510 to complete construction of a large structure such as a final offshore wind power generator.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: offshore wind power base
110: upper extension through hole 111: lower through hole
112: extended upper portion 120: guide tube
121: guide member 130:
200: file 300: hinge head fixing device
310: file head 311: through hole
320: hinge fixing port 321: body part
322: male hinge groove 333: hinge hanger rod
334: female hinge plate 325: hinge connecting block
330: vertical bar 340: extension bar
350: inner reinforcing bar 400: upper cap
410: injection hole 420: exhaust hole

Claims (3)

(a) a bottom through hole (111) exposed toward the bottom surface to insert the file (200); A plurality of upper extension through holes 110 are formed along the outer periphery of the plate structure and a plurality of upper extension through holes 110 including an extended upper end 112 formed continuously with the lower through holes 111 are formed, And a guide pipe (120) inserted into the underground ground (G) so as to extend to the lower ground;
(b) inserting a file into the upper expansion hole 110 so that the head of the file is positioned at the extended upper end 112 and fixed by the hinge-head fixing device 300; And
(c) An upper cap 400 is installed in the upper extension through hole 110 to seal the upper extension through hole 110, and the grouting material is introduced into the upper extension through hole 110 through the upper cap 400 And press-fitting the lower portion of the base portion of the support structure,
The hinge-head fixing apparatus 300 of the step (b) includes a pile head 310 installed to be inserted into the upper extension through-hole 110; A plurality of extension rods (340) extending through the through holes (311) of the pile head (310) and extending one side to the upper extension through hole and the other side extending into the pile head (310); A hinge fixing hole 320 to which the extension rod is hinged; And a vertical bar (330) connected to the hinge fixture and extending above the pile head,
The hinge fastening port 320 of the step (b) has a plurality of hinge grooves 322 formed in the hinge fastening bar 323 in the body 321, and a hinge fastener And a hinge connection block 325 formed at one end of the arm hinge plate 324 to be inserted into the rod 323 and the other end of which is inserted and fixed to the end of the extension rod 340, And the extension rod (340) is rotatable with respect to the hinge catch rod (323) of the hinge groove. delete The method according to claim 1,
A guide member 120 is formed in the bottom through-hole 111 of the step (a) so that a guide member 121 capable of guiding the pile 200 is formed on the inner side of the guide pipe 120 Lt; / RTI >
The extended upper end portion 112 is formed by expanding to a diameter larger than the diameter of the bottom through hole so that the space S in which the extension rod 340 of the hinge head fixing device 300 can be expanded is secured, ) Is exposed to the outside of the wind turbine.
KR1020150057105A 2015-04-23 2015-04-23 Submarine structure construction method using hinge type head fixing apparatus KR101656691B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210048939A (en) 2019-10-24 2021-05-04 한국건설기술연구원 Mono-pile using friction bumps controlled by tendon and constructiin method therefor
CN113235633A (en) * 2021-04-06 2021-08-10 陕西电力建设集团有限公司 Prefabricated anchoring foundation for frozen soil foundation of transformer substation
KR102294532B1 (en) * 2021-02-24 2021-08-30 (주)에스와이텍 Multiaxial pile construction method for seismic reinforcement of foundation concrete

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KR101147976B1 (en) * 2009-10-22 2012-05-24 (주)지오알앤디 Reinforced bearing power pile members of foundation pile
KR20140000861A (en) * 2012-06-26 2014-01-06 이종석 Guide spacer
KR20150021226A (en) * 2013-08-20 2015-03-02 (주)동명기술공단종합건축사사무소 Support concrete structure construction method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101147976B1 (en) * 2009-10-22 2012-05-24 (주)지오알앤디 Reinforced bearing power pile members of foundation pile
KR20140000861A (en) * 2012-06-26 2014-01-06 이종석 Guide spacer
KR20150021226A (en) * 2013-08-20 2015-03-02 (주)동명기술공단종합건축사사무소 Support concrete structure construction method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210048939A (en) 2019-10-24 2021-05-04 한국건설기술연구원 Mono-pile using friction bumps controlled by tendon and constructiin method therefor
KR102294532B1 (en) * 2021-02-24 2021-08-30 (주)에스와이텍 Multiaxial pile construction method for seismic reinforcement of foundation concrete
CN113235633A (en) * 2021-04-06 2021-08-10 陕西电力建设集团有限公司 Prefabricated anchoring foundation for frozen soil foundation of transformer substation

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