US20100183378A1 - Spiral steel pile - Google Patents

Spiral steel pile Download PDF

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Publication number
US20100183378A1
US20100183378A1 US12/450,630 US45063008A US2010183378A1 US 20100183378 A1 US20100183378 A1 US 20100183378A1 US 45063008 A US45063008 A US 45063008A US 2010183378 A1 US2010183378 A1 US 2010183378A1
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US
United States
Prior art keywords
steel pipe
spiral
pile
ground
spiral portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/450,630
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English (en)
Inventor
Tsuneo Goto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20100183378A1 publication Critical patent/US20100183378A1/en
Abandoned legal-status Critical Current

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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
    • E02D5/56—Screw piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K5/00—Gas flame welding
    • B23K5/02—Seam welding
    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E02D5/801—Ground anchors driven by screwing
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/22—Placing by screwing down

Definitions

  • the present invention relates to a foundation pile for the foundation of a building.
  • conventional foundation piles ( 2 ) used for the foundation of buildings are driven into the ground inside a shallow hole, and the head of the foundation pile, which sticks out from the ground, is covered with reinforced concrete with anchor bolts sticking out on top, and thus, the foundation ( 7 ) is constructed and a pillar for a building or the like can stand on the foundation.
  • a method for driving a pile using a hammer is generally used to build conventional foundation piles, but this causes strong vibrations in the ground, as well as noise. As a result, residents in the neighborhood are bothered by vibration and noise.
  • Patent Document 1 Japanese Unexamined Utility Model Publication S59 (1984)-19639
  • Patent Document 2 Japanese Translation of International Unexamined Patent Publication H10 (1998)-513237
  • Patent Document 3 Japanese Patent Application 2002-172089
  • Patent Document 4 Japanese Unexamined Patent Publication H10 (1998)-296342
  • conventional spiral piles generally have an outer diameter of approximately 100 mm or less, and therefore, products are in such a form that the entirety of the pile is spiral or a spiral portion is inserted at the end of a cylindrical pile.
  • the present inventor conducted diligent research, and as a result found that steel pipes used as foundation piles have an outer diameter of no less than 100 mm and the resistance in the steel pipe portion when it is driven into the ground becomes greater than the force with which the spiral portion pulls the steel pipe, and that it is thus difficult for conventional piles in spiral form to be smoothly driven into a foundation. In some cases, a problem arises, such that the joint between the steel pipe portion and the spiral portion breaks.
  • An object of the present invention is to provide a new pile to replace conventional foundation piles, so that piles can be driven into the ground with little vibration and noise, and thus do not bother residents in the neighborhood, and in particular, to provide a spiral steel pipe pile that can be smoothly driven into the ground even when the outer diameter is more than 100 mm.
  • the spiral steel pipe pile has a spiral portion that is screwed into the ground, and thus has a strong resistance to loads in the vertical direction, so that the pile cannot be pushed in or pulled out unless the stratum around the pile is broken.
  • the resistance to the load in the vertical direction is greater than that of conventional foundation piles, and the pile according to the invention has excellent resistance to loads, particularly in soft ground.
  • the resistance to the load in the horizontal direction is almost the same between the two.
  • the joint between the steel pipe and the spiral portion is stronger, and the cover in conical form provided at the lower end of the steel pipe so as to cover the hole in the spiral insertion portion makes it possible to drive a steel pipe pile smoothly into the ground.
  • FIG. 1 is a front diagram showing the spiral steel pipe pile according to the present invention
  • FIG. 2 is a front cross sectional diagram showing the spiral steel pipe pile according to the present invention when driven into the ground as in the first embodiment
  • FIG. 3 is a front cross sectional diagram showing the spiral steel pipe piles according to the present invention when driven into the ground as in the second embodiment;
  • FIG. 4 is a plan diagram showing the spiral steel pipe piles according to the present invention when driven into the ground as in the second embodiment
  • FIG. 5 is a front cross sectional diagram showing a conventional foundation pile
  • FIG. 6A is a front diagram and FIG. GB a side diagram showing the lower end of a steel pipe pile;
  • FIG. 7A is a front diagram and FIG. 7B a side diagram showing a steel pipe pile with a spiral portion inserted;
  • the spiral steel pipe pile according to the present invention is gained by joining a spiral portion ( 4 ) to the end of a steel pipe ( 3 ).
  • the spiral steel pipe pile is driven into the ground using a pressing force and forceful rotation using a civil engineering machine, and therefore, the joint portion needs to be strong enough to be able to bear this.
  • first a spiral portion ( 4 ) is fabricated by twisting flat steel having the same or a slightly greater width than the outer diameter of the steel pipe.
  • a slit ( 5 ) in spiral form is created at the lower end of the steel pipe so that the spiral portion can be inserted.
  • the spiral portion is inserted into the slit in the stell pipe in such a state that the steel pipe and the spiral portion share the same center line, and the steel pipe and the spiral portion are welded together along the slit in the steel pipe.
  • the spiral portion is inserted into the cylindrical steel pipe before welding, and therefore, the two can be welded together only at the opening for insertion, and sufficient strength cannot be gained.
  • the spiral portion is gained by twisting flat steel that is slightly wider than conventionally, so that the outer edges stick out from the steel pipe, making welding easy and the welded portion sufficiently long, and therefore, it becomes possible to attach the spiral portion firmly to the end of the steel pipe while allowing it to maintain its own strength.
  • the width of the flat steel may be the same as the outer diameter of the steel pipe, but this is the minimum width, and a slightly greater width makes welding more effective.
  • This cover is made of a steel plate in conical form, as shown in FIG. 9 , which is divided in two, so that the portion that makes contact with the spiral portion is curved and there are no gaps between the cover and the spiral portion.
  • the two pieces of the cover are welded to the pile from the front and rear of the spiral portion, and thus, soil can be prevented from getting into the steel pipe when the spiral steel pipe pile is screwed into the ground, making it easy for the steel pipe to be driven into the ground.
  • the bucket is removed from a backhoe and instead the spiral steel pipe pile attached to the hydraulic auger, or the spiral steel pipe pile is attached to the auger of a bore piling truck, and then the spiral steel pipe pile is screwed into the ground.
  • the spiral steel pipe pile may be screwed into the ground using a dedicated machine.
  • the spiral steel pipe pile is rotated and pressed in at a rotational speed and speed of insertion in accordance with the pitch of the spiral.
  • the spiral portion is screwed into the ground without disturbing the stratum at all.
  • the steel pipe portion is pushed into the ground while spreading the soil outward after the cover ( 6 ) portion hits the ground, and therefore, there is little friction between the soil and the surface of the steel pipe, and the resistance to loads in the vertical direction is high.
  • a shallow hole is dug in the ground and the spiral steel pipe pile ( 1 ) is attached to a civil engineering machine, as described above, and stood upright at a predetermined point in the hole, and then screwed into the ground by applying a rotational force and a downward pressing force.
  • a foundation ( 7 ) is constructed of reinforced concrete with an anchor bolt sticking out on top, and the hole is filled in, and thus the work is completed.
  • FIGS. 3 and 4 show the second embodiment, where four spiral steel pipe piles are used.
  • the spiral portion has a width of 150 mm, a thickness of 190 mm and a length of 1800 mm, and the steel pipe has a diameter of 114.3 mm, a thickness of 4.5 mm and a length of 5500 mm, which makes the total length 7200 mm with an insertion portion of 100 mm.
  • This spiral steel pipe pile can be used for various applications, including structures, buildings and bases for road signs.
  • the spiral portion has excellent resistance to the ground in the vertical direction, and therefore, a long spiral portion has excellent performance in soft ground.
  • the present invention makes it possible to fabricate a larger spiral steel pipe pile, and as a result, it becomes possible to use spiral steel pipe piles for foundations for medium- to large-sized buildings and medium-sized bridges.

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)
  • Mechanical Engineering (AREA)
  • Piles And Underground Anchors (AREA)
US12/450,630 2007-04-09 2008-04-04 Spiral steel pile Abandoned US20100183378A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007101229A JP5335200B2 (ja) 2007-04-09 2007-04-09 スパイラル鋼管杭
JP2007-101229 2007-04-09
PCT/JP2008/056768 WO2008126789A1 (ja) 2007-04-09 2008-04-04 スパイラル鋼管杭

Publications (1)

Publication Number Publication Date
US20100183378A1 true US20100183378A1 (en) 2010-07-22

Family

ID=39863887

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/450,630 Abandoned US20100183378A1 (en) 2007-04-09 2008-04-04 Spiral steel pile

Country Status (8)

Country Link
US (1) US20100183378A1 (ko)
EP (1) EP2141286B1 (ko)
JP (1) JP5335200B2 (ko)
KR (1) KR101620380B1 (ko)
CN (1) CN101668898A (ko)
CA (1) CA2682816C (ko)
TW (1) TW200902801A (ko)
WO (1) WO2008126789A1 (ko)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130004243A1 (en) * 2011-05-06 2013-01-03 Defrang Dave Apparatus and methods for pile placement
US8429859B2 (en) * 2011-08-01 2013-04-30 Source Of Pride, Llc Apparatus for supporting a cemetery headstone and method of fabricating same
US20150225917A1 (en) * 2012-10-03 2015-08-13 Tsuneo Goto Structural foundation
CN106193034A (zh) * 2016-08-11 2016-12-07 四川电力建设三公司 光伏电站螺旋钢管桩施工方法
US10889953B1 (en) * 2020-03-21 2021-01-12 IDIZ Limited Drill stake and accessories for concrete form construction
CN112900429A (zh) * 2019-11-19 2021-06-04 李康守 使用头部加固单元的桩和其建构方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2010235744B2 (en) * 2009-04-10 2014-12-18 Nippon Steel Corporation Steel pipe pile
JP2011174306A (ja) * 2010-02-25 2011-09-08 Okasan Livic Co Ltd 土中への穿入機能と引き抜き抵抗力機能とを備える打設用補強材
JP5575160B2 (ja) * 2012-02-10 2014-08-20 株式会社 Ｇｔスパイラル 基礎杭
CN103243715A (zh) * 2013-05-29 2013-08-14 江阴中南重工股份有限公司 无芯轴螺旋地锚
CN104074149A (zh) * 2014-07-04 2014-10-01 金德珠 K-s型立柱
KR101624896B1 (ko) 2014-08-19 2016-05-27 주식회사 제이에스그린 스파이럴 파일
RU2583793C1 (ru) * 2015-04-02 2016-05-10 Общество с ограниченной ответственностью ДЭЙТЭРИЧ ИНВЕСТМЕНТС Винтовая свая
RU2587399C1 (ru) * 2015-04-02 2016-06-20 Общество с ограниченной ответственностью ДЭЙТЭРИЧ ИНВЕСТМЕНТС Винтовая свая
CN110397073A (zh) * 2019-07-26 2019-11-01 天津大学 一种带有螺旋桩的复合型圆形基础及其施工方法
CN110397072A (zh) * 2019-07-26 2019-11-01 天津大学 一种带有螺旋贯入装置的厚壁混凝土筒型基础及其施工方法
JP2021025311A (ja) * 2019-08-06 2021-02-22 日鉄建材株式会社 スパイラル杭

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US108814A (en) * 1870-11-01 Improvement in riles jfzr
US2001719A (en) * 1932-08-29 1935-05-21 Greene Curtis Anchor post
US3991454A (en) * 1974-02-11 1976-11-16 Marwin Cutting Tools Limited Flute pieces for engineers tools

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2960345B2 (ja) * 1995-08-24 1999-10-06 株式会社巴技研 継手用密閉蓋およびその施工方法
JPH09122906A (ja) * 1995-10-30 1997-05-13 Sakurada:Kk スリットに継手金具を挿込み溶着する継手強度を増加させる補強方法
JP4111601B2 (ja) * 1998-09-08 2008-07-02 常郎 後藤 アンカー
JP2002172089A (ja) 2000-12-07 2002-06-18 Akio Nakagawa 中心外視力測定用視力表
JP2002302961A (ja) * 2001-04-06 2002-10-18 Tsuneo Goto 支柱及び支柱の基礎
JP4017922B2 (ja) * 2002-05-08 2007-12-05 常郎 後藤 支柱及び支柱の基礎
JP4585757B2 (ja) * 2003-11-04 2010-11-24 常郎 後藤 スパイラル支柱
WO2006064174A1 (en) * 2004-12-13 2006-06-22 Access To Design Limited Ground anchors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US108814A (en) * 1870-11-01 Improvement in riles jfzr
US2001719A (en) * 1932-08-29 1935-05-21 Greene Curtis Anchor post
US3991454A (en) * 1974-02-11 1976-11-16 Marwin Cutting Tools Limited Flute pieces for engineers tools

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130004243A1 (en) * 2011-05-06 2013-01-03 Defrang Dave Apparatus and methods for pile placement
US8429859B2 (en) * 2011-08-01 2013-04-30 Source Of Pride, Llc Apparatus for supporting a cemetery headstone and method of fabricating same
US8555561B2 (en) * 2011-08-01 2013-10-15 Source Of Pride, Llc Apparatus for supporting a cemetery headstone and method of fabricating same
US20150225917A1 (en) * 2012-10-03 2015-08-13 Tsuneo Goto Structural foundation
CN106193034A (zh) * 2016-08-11 2016-12-07 四川电力建设三公司 光伏电站螺旋钢管桩施工方法
CN112900429A (zh) * 2019-11-19 2021-06-04 李康守 使用头部加固单元的桩和其建构方法
US10889953B1 (en) * 2020-03-21 2021-01-12 IDIZ Limited Drill stake and accessories for concrete form construction

Also Published As

Publication number Publication date
CN101668898A (zh) 2010-03-10
JP2008255730A (ja) 2008-10-23
CA2682816A1 (en) 2008-10-23
KR20100015601A (ko) 2010-02-12
EP2141286A4 (en) 2010-04-28
EP2141286A1 (en) 2010-01-06
KR101620380B1 (ko) 2016-05-12
WO2008126789A1 (ja) 2008-10-23
CA2682816C (en) 2014-05-27
EP2141286B1 (en) 2012-06-06
TW200902801A (en) 2009-01-16
JP5335200B2 (ja) 2013-11-06

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