WO2012096679A1 - Piliers en tube d'acier et structures de piliers en tube améliorés - Google Patents

Piliers en tube d'acier et structures de piliers en tube améliorés Download PDF

Info

Publication number
WO2012096679A1
WO2012096679A1 PCT/US2011/022491 US2011022491W WO2012096679A1 WO 2012096679 A1 WO2012096679 A1 WO 2012096679A1 US 2011022491 W US2011022491 W US 2011022491W WO 2012096679 A1 WO2012096679 A1 WO 2012096679A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
water
zone
pipe piles
material thickness
Prior art date
Application number
PCT/US2011/022491
Other languages
English (en)
Inventor
Roberto Redondo WENDT
Original Assignee
Pilepro, Llc
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 Pilepro, Llc filed Critical Pilepro, Llc
Priority to AU2011354695A priority Critical patent/AU2011354695A1/en
Priority to PCT/US2012/020738 priority patent/WO2012096932A1/fr
Priority to JP2013549489A priority patent/JP2014506966A/ja
Priority to EP12733969.5A priority patent/EP2663695A4/fr
Priority to BR112013017716A priority patent/BR112013017716A2/pt
Priority to SG2013051743A priority patent/SG191848A1/en
Publication of WO2012096679A1 publication Critical patent/WO2012096679A1/fr

Links

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
    • E02D5/24—Prefabricated piles
    • E02D5/28—Prefabricated piles made of steel or other metals
    • 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
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/03—Prefabricated parts, e.g. composite sheet piles
    • E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
    • E02D5/08—Locking forms; Edge joints; Pile crossings; Branch pieces
    • 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
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/16—Auxiliary devices rigidly or detachably arranged on sheet piles for facilitating assembly
    • 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
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder
    • E02D2300/002—Concrete
    • 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
    • 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

Definitions

  • the present invention relates to an improvement in metal pipe piles - and specifically, steel pipe piles - which are adapted to be driven into the earth for use as a structural element in a foundation or in a wall. More particularly, the present
  • invention relates to metal pipe piles , for use in a foundation or wall, which are subject to corrosion by the elements.
  • Fig. 1 shows a retaining wall 10, formed of a row of steel pipe piles for example, which holds back the earth 12 on the edge of the sea 14.
  • an earth anchor 16 provides horizontal support for the pipe piles against lateral forces exerted by the earth side 12. With such an anchor in place, the pipe piles are subject to a bending moment with a distribution, along their length, as shown by the graph 18.
  • the vertical levels of the retaining wall are divided into zones , depending on the expected rates of corrosion of the steel. These zones, which are defined by the expected water levels due to the tides and storms are called, successively from upper to lower, the “splash zone” 20 (from the mean high water level to the top of the wall) ; the “intertidal zone” 22 (between the mean low water and the mean high water levels) ; the “low water zone” 24 (from the lowest water level to the mean low water level) ; the "permanent immersion zone” 26 (from the ocean floor to the lowest water level) ; and the "buried zone” 28
  • steel piling durability concerns are minimal simply because steel piling is usually over-designed, due to the use of a relatively high safety factor with steel as compared to concrete. This inherent factor obviously takes the natural and inevitable aspect of corrosion into account.
  • the highest corrosion rates are usually found in the (sea water) splash zone or in the low water zone.
  • the highest stresses are usually in the permanent immersion zone 26. See
  • the European Pre-standard promulgated as "Eurocode 3: Design of Steel Structures - Part 5: Piling" (BS E V 1993-5: 1997 and BS E V 1993-5: 2007) provides tables for the expected loss of thickness due to corrosion for steel piles and steel sheet piles in fresh water and in sea water for temperate climates . For example, in sea water and in the zones of high corrosion rate, it is expected that 7.5 mm of steel will be lost from the steel surface over a period of 100 years.
  • the coating is relatively expensive to purchase and apply in such large quantities ;
  • the coating which is toxic to plant and fish life, can bleed or rub off in the water.
  • a pipe pile which comprises a substantially cylindrical, and preferably steel, pipe body extending longitudinally between two opposite ends , the pipe body being formed of a plurality of pipe
  • All of the pipe sections have substantially the same outside diameter; however, two or more pipe sections have differing inside diameters, and thus a differing wall thickness, between the two ends of the pipe pile.
  • This structure allows a design engineer to specify the material wall thickness of the pipe piles approximately in accordance with the expected rate of corrosion over the service life of the project, with certain ones of the pipe sections of the pipe piles have a greater wall thickness than other pipe sections.
  • Fig. 1 is a representational diagram of a pipe pile retaining wall with accompanying graphs showing the approximate rate of corrosion and a typical bending moment distribution along the length of the pipe piles .
  • Fig. 2 is an illustration of a row of pipe piles of the type to which the present invention relates .
  • Fig. 3 is a plan view showing two pipe piles linked together by male and female connecting elements , welded to the exterior pipe pile surfaces .
  • Fig. 4 is a detailed plan view of the male and female connectors shown in Fig. 3.
  • Fig. 5 is a detailed plan view showing another embodiment of male and female connecting elements that may be used to connect pipe piles .
  • Fig. 6 is a plan view of two pipe piles linked by a U-shaped sheet pile.
  • Fig. 7 is a plan view of two pipe piles linked by two Z-shaped sheet piles .
  • Fig. 8 is a cross-sectional view of a retaining wall of the type to which the present invention relates .
  • Fig. 9 is a cross-sectional view of a pier of the type to which the present invention relates .
  • Fig. 10a is a cross-sectional view (not to scale) showing a single pipe pile comprised of three sections , welded together end-to-end along a common longitudinal axis, with each section having the same outer diameter but a differing internal
  • Fig. 10b is a lateral cross-sectional view (not to scale) of each pipe pile section of Fig. 10a.
  • Fig. 1 shows a retaining wall 10 formed of steel pile piles which retains and separates the earth 12, on one side, from the sea 14 on the other. As explained in the Background of the Invention section above, the pipe piles in this wall are
  • the pipe piles of the retaining wall are driven into the earth below the sea bed with their longitudinal axes arranged
  • FIG. 2 shows such a series of pipe piles 32, arranged along a horizontal line 33 and connected together by intermediate connecting elements, which are affixed to the external, curved surfaces of the piles by welding.
  • Fig. 3 illustrates how two such pipe piles 32 are joined by such connecting elements 34 , the details of which are presented in Fig. 4.
  • a "male" connecting element 36 is welded to one side of each pipe 32 and a “female” connecting element 38 is welded to the opposite side, over the entire length (or nearly the entire length) of the pipe.
  • the pipes are then driven into the earth, one at a time, with the male
  • connecting element 36 welded to one pipe, inserted in and interlocked with the female connecting element 38 that is welded to the next, adjacent pipe.
  • Fig. 5 shows another type of connecting element 40 that may be used between adjacent pipes 32 to connect the pipes closely together.
  • This connecting element which is described in detail in the U.S. Patent No. 7,168,214, comprises a short male element 42 with an interlocking head strip 44 and a female element formed by a claw 46.
  • Figs . 6 and 7 each show two pipe piles 32 , also arranged side by- side and longitudinally in parallel, which are separated by sheet piles instead of connectors only.
  • the adjacent pipe piles are connected together by two Z-shaped sheet piles 50 and 52; in Fig. 7 the pipe piles are connected by an intervening U-shaped sheet pile 54.
  • Fig. 8 is a cross-sectional side view of a pipe pile 32, one of many in a seaside retaining wall 60.
  • the wall supports the earth 62, on one side, from falling into to the sea 64, on the other.
  • the pipes of the wall, represented by pipe 32 pass through the sandy earth 66 beneath the sea floor and are preferably of sufficient length to reach the bedrock 68 below.
  • the pipes are transported to the construction site in convenient (e.g. 20 foot) lengths and welded end-to-end when they are installed.
  • the useful life of a pipe pile and sheet pile wall depends entirely upon the rate of corrosion of the metal (steel) caused by the combination of water and air.
  • the water - particularly salt water, brackish water or polluted water - causes the steel pile wall to corrode at a known rate, particularly in the regions 70 and 72. Outside of these regions, where the sheet pile wall is either continuously immersed in the water or in the ground, or where the pipe pile wall meets primarily air, except on rainy days, the corrosion is somewhat, or even substantially, less .
  • Fig. 9 is a diagram, similar to Fig. 8, which shows the use of steel sheet pile pipes to support an ocean pier 76. Like Fig. 8, this diagram shows an intertidal zone 70 and a splash zone 72. As compared to the pipes of the retaining wall of Fig. 8, the steel pipe piles 32 are subjected to a substantially less bending moment. However, they are subjected to corrosion, especially in the splash zone, intertidal zone, low water zone and permanent immersion zone, as explained above in connection with Fig. 1.
  • Figs. 10a and 10b it is proposed to utilize and install pipe piles of differing thickness, so as to take into consideration the differing rates of corrosion in the pipe pile wall.
  • Fig. 10a shows a length of pipe 32 in three sections: a lower section 86 (intended to remain continuously beneath the water level) ; a middle section 88 (intended for location in the tide zone and splash zone of the wall) and an upper section 90 (intended to remain continuously in the open air) .
  • the pipe in section 88 which corrodes at a much faster rate, is considerably thicker than the pipe in sections 86 and 90.
  • the pipe section 86 which must withstand greater stress, has a somewhat greater wall thickness than the pipe section 90.
  • the invention has the advantage of supplanting the need for coating the pipes in regions susceptible to increased corrosion (the tidal zone and splash zone, for example) , while at the same time allowing for reduced pipe thickness in the regions which are less susceptible to corrosion (the region beneath the earth for example) .

Abstract

L'invention concerne un pilier en tube d'acier que l'on utilise dans des fondations ou des murs de retenue, lequel comprend un corps de tube essentiellement cylindrique et de préférence en acier s'étendant longitudinalement entre deux extrémités opposées, lequel corps de tube est formé de plusieurs sections de tubes inter-verrouillées ou soudées bout-à-bout et disposées sur un axe longitudinal central commun entre les deux extrémités. Toutes les sections de tube ont essentiellement le même diamètre externe, mais deux sections de tube ou plus ont des diamètres internes différents, et donc une épaisseur de paroi différente, entre les deux extrémités du pilier en tube.
PCT/US2011/022491 2011-01-11 2011-01-26 Piliers en tube d'acier et structures de piliers en tube améliorés WO2012096679A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2011354695A AU2011354695A1 (en) 2011-01-11 2011-01-26 Improved steel pipe piles and pipe pile structures
PCT/US2012/020738 WO2012096932A1 (fr) 2011-01-11 2012-01-10 Piliers en tube d'acier et structures de piliers en tube améliorés
JP2013549489A JP2014506966A (ja) 2011-01-11 2012-01-10 管杭、支持構造体および擁壁
EP12733969.5A EP2663695A4 (fr) 2011-01-11 2012-01-10 Piliers en tube d'acier et structures de piliers en tube améliorés
BR112013017716A BR112013017716A2 (pt) 2011-01-11 2012-01-10 estacas de tubo de aço aperfeiçoadas e estruturas de estacas de tubo
SG2013051743A SG191848A1 (en) 2011-01-11 2012-01-10 Improved steel pipe piles and pipe pile structures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161431491P 2011-01-11 2011-01-11
US61/431,491 2011-01-11

Publications (1)

Publication Number Publication Date
WO2012096679A1 true WO2012096679A1 (fr) 2012-07-19

Family

ID=46455369

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/022491 WO2012096679A1 (fr) 2011-01-11 2011-01-26 Piliers en tube d'acier et structures de piliers en tube améliorés

Country Status (6)

Country Link
US (2) US20120177445A1 (fr)
JP (1) JP2014506966A (fr)
AU (1) AU2011354695A1 (fr)
BR (1) BR112013017716A2 (fr)
SG (1) SG191848A1 (fr)
WO (1) WO2012096679A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017060567A1 (fr) 2015-10-06 2017-04-13 Robit Oyj Pieu tubulaire pour paroi de pieu et procédé de formation d'une paroi de pieu

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014533330A (ja) * 2011-08-25 2014-12-11 パイルプロ，エルエルシー 防波壁用パイル配列および配列方法
US11053655B2 (en) * 2013-09-03 2021-07-06 Lawrence S. Maxwell Modular grid foundation
JP2015132059A (ja) * 2014-01-10 2015-07-23 前田建設工業株式会社 鋼管矢板の継手構造
JP6394180B2 (ja) * 2014-08-26 2018-09-26 新日鐵住金株式会社 鋼管矢板の継手構造
DE102016203268A1 (de) * 2016-02-29 2017-08-31 Innogy Se Gründungspfahl für eine Windenergieanlage
CN106677205A (zh) * 2016-11-11 2017-05-17 重庆大学 一种装配式异形钢管桩组合挡土墙
USD837043S1 (en) * 2017-12-12 2019-01-01 Jens Rehhahn Sheet pile
USD837042S1 (en) * 2017-12-12 2019-01-01 Jens Rehhahn Sheet pile
WO2020010387A1 (fr) * 2018-07-10 2020-01-16 Edelman Projects Pty Ltd Ensemble de protection de mur
CN109590744B (zh) * 2019-01-18 2019-11-01 中交第三航务工程局有限公司 一种海上风电基础钢管桩的焊接工艺
USD982423S1 (en) * 2019-08-14 2023-04-04 Roberto Redondo Wendt Connector
USD925069S1 (en) * 2020-02-05 2021-07-13 Sheet Pile LLC Combined cylindrical pile, sheet pile and connecting element
USD925776S1 (en) * 2020-02-05 2021-07-20 Sheet Pile LLC Cylindrical pile with connecting elements
CA3146957A1 (fr) * 2021-01-29 2022-07-29 Littoral Power Systems, Inc. Systeme de fondation hydroelectrique modulaire prefabrique pour les conditions du sol
US11603636B2 (en) * 2021-07-13 2023-03-14 Pepsy M. Kettavong Interlocking modular smart seawall diversion and recreation system and method of installation
US11655603B2 (en) * 2021-08-05 2023-05-23 Arthur Hagar Thompson, III Resilient waterfront platform
US11846082B1 (en) * 2022-06-14 2023-12-19 Prince Mohammad Bin Fahd University Foundation system for collapsible soils
CN115852895B (zh) * 2022-12-30 2023-08-22 广东樵盛建设工程有限公司 生态挡墙护岸

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181300A (en) * 1960-10-31 1965-05-04 Walter A Plummer Piling jacket and method of protecting pilings
US4659255A (en) * 1984-07-19 1987-04-21 Nippon Steel Corporation Marine structure of precoated corrosion resistant steel pipe piles
US5385432A (en) * 1991-05-10 1995-01-31 Nippon Steel Corporation Water area structure using placing member for underwater ground
JP2002004239A (ja) * 2000-06-14 2002-01-09 Genkai Ryo 鋼管パイルを使用した桟橋式接岸施設
JP2006063641A (ja) * 2004-08-26 2006-03-09 Nippon Steel Corp 遮水パネル用鋼管矢板及び該鋼管矢板を用いた遮水用鋼管矢板パネル
JP2010242499A (ja) * 2010-06-28 2010-10-28 Sumitomo Metal Ind Ltd 基礎杭構造およびｓｃ杭

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847375A (en) * 1953-07-13 1958-08-12 Texas Co Apparatus for corrosion prevention
US3382680A (en) * 1965-09-21 1968-05-14 Nippon Concrete Ind Co Ltd Prestressed concrete pile sections
US4124123A (en) * 1975-11-12 1978-11-07 The Triax Company Storage framework and method
US4211503A (en) * 1978-11-13 1980-07-08 Conoco, Inc. Bimetallic corrosion resistant structural joint and method of making same
US4585374A (en) * 1979-08-16 1986-04-29 Jet Research Center Inc. High energy formed connections
JPS5655625A (en) * 1979-10-12 1981-05-16 Kawasaki Steel Corp Underwater pile with corrosion-resistant coat
JPS58160431A (ja) * 1983-02-02 1983-09-22 Asahi Chem Ind Co Ltd 鋼管コンクリ−ト複合パイル
US4743142A (en) * 1984-07-19 1988-05-10 Nippon Steel Corporation Precoated corrosion-resistant steel pipe piles for marine use, and structure thereof
GB2177744B (en) * 1985-07-15 1989-07-19 Pmb Systems Eng Ltd Compliant tower
NO167679C (no) * 1989-07-14 1991-11-27 Offshore Innovation Ltd A S Oppjekkbar oljerigg og hjoernesoeyle for fremstilling av samme.
JPH03107014A (ja) * 1989-09-21 1991-05-07 Matsuzawa Kiko:Kk 土留め壁の施工法
JPH07180141A (ja) * 1993-12-21 1995-07-18 Kubota Corp 鋼管柱列土留壁の施工方法及びこれに使用する鋼管杭
GB2302119B (en) * 1994-05-02 1998-02-18 Shell Int Research A method for templateless foundation installation of a tlp
GB9816698D0 (en) * 1998-07-31 1998-09-30 British Steel Plc Steel sheet piling
JP2000248526A (ja) * 1999-03-03 2000-09-12 Nippon Steel Corp 桟橋構造およびその構築方法
JP4285593B2 (ja) * 2000-04-07 2009-06-24 新日本製鐵株式会社 保有水の浸出検知機能を有した遮水性護岸構造とその補修方法
US20030082012A1 (en) * 2000-05-09 2003-05-01 Gordon Clark Method and apparatus for forming foundations
JP2003088884A (ja) * 2001-09-17 2003-03-25 Kotaro Koga 杭を用いた下水処理システム
US7392624B2 (en) * 2003-02-05 2008-07-01 Dwight Eric Kinzer Modular load-bearing structural column
JP2005076415A (ja) * 2003-09-03 2005-03-24 Mikio Umeoka 鋼管杭、及びそれを用いた鋼管杭の接続方法
DE102006000623A1 (de) * 2005-08-09 2007-02-22 Pilepro Llc Anordnung aus Spundwandabschnitten
JP4569525B2 (ja) * 2005-07-29 2010-10-27 住友金属工業株式会社 複合構造体用鋼製壁体
US7600948B2 (en) * 2005-10-19 2009-10-13 Schnable Foundation Company Micropile retaining wall
DE102007020747A1 (de) * 2007-05-03 2008-11-13 Pilepro Llc Anordnung aus mehreren Spundwandkomponenten sowie Anschweißprofil hierfür
JP5347898B2 (ja) * 2008-12-03 2013-11-20 Ｊｆｅエンジニアリング株式会社 既設矢板岸壁の補強構造及び方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181300A (en) * 1960-10-31 1965-05-04 Walter A Plummer Piling jacket and method of protecting pilings
US4659255A (en) * 1984-07-19 1987-04-21 Nippon Steel Corporation Marine structure of precoated corrosion resistant steel pipe piles
US5385432A (en) * 1991-05-10 1995-01-31 Nippon Steel Corporation Water area structure using placing member for underwater ground
JP2002004239A (ja) * 2000-06-14 2002-01-09 Genkai Ryo 鋼管パイルを使用した桟橋式接岸施設
JP2006063641A (ja) * 2004-08-26 2006-03-09 Nippon Steel Corp 遮水パネル用鋼管矢板及び該鋼管矢板を用いた遮水用鋼管矢板パネル
JP2010242499A (ja) * 2010-06-28 2010-10-28 Sumitomo Metal Ind Ltd 基礎杭構造およびｓｃ杭

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017060567A1 (fr) 2015-10-06 2017-04-13 Robit Oyj Pieu tubulaire pour paroi de pieu et procédé de formation d'une paroi de pieu

Also Published As

Publication number Publication date
JP2014506966A (ja) 2014-03-20
SG191848A1 (en) 2013-08-30
US20120177445A1 (en) 2012-07-12
AU2011354695A1 (en) 2013-03-21
US20170218589A1 (en) 2017-08-03
BR112013017716A2 (pt) 2016-10-11

Similar Documents

Publication Publication Date Title
US20170218589A1 (en) Steel pipe piles and pipe pile structures
AU2012205690B2 (en) Improved steel pipe piles and pipe pile structures
Whitmore et al. Galvanic cathodic protection of corroded reinforced concrete structures
WO2012096932A1 (fr) Piliers en tube d'acier et structures de piliers en tube améliorés
CN102840395A (zh) 一种双层保温配重海底管道
CN207244560U (zh) 一种新型的土石坝上游坝坡防浪冲击装置
CN210395414U (zh) 浅海区输电铁塔基础
Yeomans Galvanized steel reinforcement: Recent developments and new opportunities
CN111878628A (zh) 一种近海油气海底管线保护装置
RU2329428C2 (ru) Комбинированный способ прокладки трубопровода
JP5838961B2 (ja) 溝形断面部材を有する鋼矢板及び壁体
JP5720089B2 (ja) 鋼矢板および鋼矢板連続壁
CN202834574U (zh) 一种双层保温配重海底管道
CN201265193Y (zh) 海洋及类海洋工程用钢筋混凝土排水管
JP3823922B2 (ja) 鋼管矢板および矢板壁
CN103498994A (zh) 防止海底管道腐蚀的单片式牺牲阳极
CN211773884U (zh) 一种防护式新型沉管
Hawkswood Marine pile repairs by concrete encasement
RU120428U1 (ru) Двухсвайный фундамент
Hou Study on Corrosion Status and Control Strategies in Water Environment Field in China
US20200338862A1 (en) System and method for preventing or arresting corrosion on infrastructures with an impervious barrier
Ball et al. Performance of Distributed Galvanic Anode Systems on Bridges in the United States
Lasa et al. Galvanic cathodic protection for high resistance concrete in marine environments
CN106439345B (zh) 一种安全石油运输管道
JP5904263B2 (ja) 継ぎ手構造および鋼矢板連続壁

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11855707

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2011354695

Country of ref document: AU

Date of ref document: 20110126

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11855707

Country of ref document: EP

Kind code of ref document: A1