EP0918907B2 - Palplanche en forme de "u" a faible resistance d'enfoncement - Google Patents

Palplanche en forme de "u" a faible resistance d'enfoncement Download PDF

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Publication number
EP0918907B2
EP0918907B2 EP97933694A EP97933694A EP0918907B2 EP 0918907 B2 EP0918907 B2 EP 0918907B2 EP 97933694 A EP97933694 A EP 97933694A EP 97933694 A EP97933694 A EP 97933694A EP 0918907 B2 EP0918907 B2 EP 0918907B2
Authority
EP
European Patent Office
Prior art keywords
sheet pile
flange
corners
concave
equal
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.)
Expired - Lifetime
Application number
EP97933694A
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German (de)
English (en)
French (fr)
Other versions
EP0918907B1 (fr
EP0918907A1 (fr
Inventor
Roland Bastian
Alex Schmitt
Charles Reinard
Marc Meyrer
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.)
Profilarbed SA
Original Assignee
Profilarbed SA
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.)
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Publication date
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Application filed by Profilarbed SA filed Critical Profilarbed SA
Publication of EP0918907A1 publication Critical patent/EP0918907A1/fr
Publication of EP0918907B1 publication Critical patent/EP0918907B1/fr
Application granted granted Critical
Publication of EP0918907B2 publication Critical patent/EP0918907B2/fr
Anticipated expiration legal-status Critical
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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
    • E02D5/02—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

Definitions

  • the present invention relates to a "U" -shaped sheet pile with low driving resistance.
  • a "U” shaped sheet pile has a flat back (called the sheet pile) to which are connected two legs (called sheet piles) carrying interlocking locks, so that the sheet pile has a plane of symmetry perpendicular to the back.
  • these "U” shaped sheet piles are assembled using interlocking locks, with their back alternately located on either side of the plane passing through the central axes of the interlocking locks. . This plane then forms the neutral bending plane of the "U" shaped sheet pile wall.
  • the present invention has found a solution which makes it possible to have a reduction in the resistance to driving of a U-shaped sheet pile while improving the stability of the sheet pile when it is put into service. artwork.
  • FR-A-434497 corresponding to US-A-1012124, discloses special sheet piles having an arched wing, and two curved side members of very low height, which are connected to the arched wing and each carrying an interlocking lock.
  • These fairly massive sheet piles are supposed to work in tension and replace sheet piles to allow the construction of walls whose total wall thickness in the middle of the wing is not greater than the thickness of two interlocked locks. They can not therefore be assimilated to "U" shaped sheet piles which are the subject of the present invention. These last ones have indeed depths far superior to be able to work in flexion.
  • the arcuate wing has an extra thickness of material at the two connections to the side members to have a substantially flat outer surface over its entire width.
  • this material excess which is located on the outer side of the arcuate wing, substantially increases the moment of inertia and the modulus of resistance of the sheet pile, that it considerably strengthens the section of the sheet pile and that it opposes a deformation of the arched wing under pressure.
  • the main merit of the present invention is to have discovered that it is possible to reduce the resistance to driving of a "U" shaped sheet pile of given section by a contribution of material at the concave corners.
  • the local extra thicknesses at the concave corners serve above all to flatten the concave corners at the location of the wing / core connection, that is to say to make these concave corners less closed.
  • this flattening of the concave corners facilitates the flow of soil particles out of the corners. This avoids significant compaction of the soil in the concave corners, which reduces the resistance to driving the sheet pile. It will be noted that the effect obtained is particularly marked in sandy soils.
  • Cylindrical connecting surfaces substantially tangent to the faces of the wing and the respective core in said concave corners, seem to give the best results from the point of view of reducing the resistance to the driving of the sheet pile. This conclusion, however, does not exclude the use of any curved surfaces, tangent or non-tangent to the respective wing and core faces, or even polygonal surfaces or a simple flat surface to define the connecting surfaces in said corners. concave, provided of course that the concave wedges thus formed are sufficiently flattened to facilitate the flow of soil particles out of them.
  • Threshing tests carried out in a standardized sand bed have shown that a really significant reduction in threshing energy is being achieved with a cylindrical connecting surface with a radius of 75 mm which is tangent to the faces of the concrete. wing and respective soul in the concave corners. From this result, it can generally be deduced that, in order to obtain a significant reduction in the threshing time, said excess thickness must be such that the concave corners at the location of the wing / core connections are at least as open as a cylindrical connector. tangent radius 75 mm.
  • said local overthickness must be at least sufficient for a fictitious cylindrical surface, which has a radius of at least 75 mm and which is tangent to the two planes that would have formed the respective wing-soul concave corner. in the absence of said overthickness, is located completely inside said overthickness between the two generators of tangency.
  • the sheet pile according to the invention is advantageously a steel sheet pile obtained by hot rolling.
  • FIG. 1 shows a cross section of half a "U" shaped sheet pile according to the invention.
  • the other half is exactly symmetrical to the half shown, with respect to the plane of symmetry marked by the reference 8.
  • This sheet pile has a substantially planar wing 10 and perpendicular to the symmetry plane 8 of the section.
  • To this wing 10 are connected two substantially planar webs 12, of which only the left web is shown in FIG. 1.
  • Each of these webs 12 carries a lock 14 which makes it possible to form a more or less tight seal by engagement with a corresponding lock. another sheet pile.
  • the central axis of the lock 14, which is perpendicular to the plane of the drawing, is marked by the reference 15. It will be noted that the wing 10 is generally substantially thicker than the webs 12.
  • the acute angle ⁇ formed between the webs and a plane parallel to the wing is about 74 °. It goes without saying that this angle can naturally be chosen smaller or larger.
  • the acute angle ⁇ will normally be between 40 ° and 80 °.
  • the convex corners 16 connect the outer plane faces 20 of the webs 12 to the outer plane face 22 of the wing 10 (see also Figure 2).
  • These convex corners 16 have a radius, whose radius "r” is determined by rolling constraints and / or safety considerations (avoid sharp edges). Normally "r” will be larger than 10 mm and smaller than 25 mm. The smaller the “r”, the higher the bending resistance modulus of the profile.
  • the concave corners 18 are, according to the invention, substantially flattened by a local thickness of the sheet pile at these locations.
  • This modification of the known "U" shaped sheet pile will be studied in more detail using Figure 2.
  • the concave wing / core corner of a conventional sheet pile is shown in broken lines (see the lines below). identified by reference numeral 24 in Figure 2).
  • this concave corner 24 has a radius whose radius is determined by rolling constraints and approximately corresponds to the radius "r" of the convex corner 16.
  • the local allowance which has made it possible to flatten the conventional concave corner 24 and make therefore this more open corner is represented in the same figure by the hatched surface 26.
  • This extra thickness 26 defines a concave fitting surface 30. It should be noted that the symmetrical concave corner naturally has the same appearance.
  • the concave fitting surface 30 is a cylindrical connecting surface which is tangent to the inner flat face of the flange 10 and to the inner flat face 34 of the core. 12.
  • the arrows 36 in FIG. 2 show how soil particles can flow freely along the cylindrical fitting surface 30 thus avoiding the formation of a strongly compacted core in the concave wedge 18 which opposes the 'U-shaped sheet piling.
  • Threshing tests carried out in a standardized sand bed have shown that a significant reduction in threshing energy is achieved with a cylindrical connecting surface with a radius of 75 mm which is tangent to the faces of the wing and respective soul in the concave corners at the location of the wing / core connection.
  • the trace of this "minimal" cylindrical connection is represented by a circular arc drawn in broken lines and identified by the reference number 38.
  • the arc 38 which is tangent to the traces of the two planes 32 , 34 which would have formed the respective concave wing / soul connection corner in the absence of the excess thickness 26, is supposed to determine the minimum extra thickness in the concave corners necessary to obtain a significant reduction in threshing energy.
  • the thickness of material corresponding to the cylindrical connecting surface 30 is substantially greater, which not only reduces the resistance to penetration, but also increases the plastic moment and the rotational capacity of the flexural profile.
  • the reference 40 marks the trace of a polygonal connecting surface which lies between the surface 30 and the minimum material surface 38.
  • the present invention presents a profile of threshing and vibration sinking ideal for implementation in difficult conditions.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Road Paving Machines (AREA)
  • Woven Fabrics (AREA)
  • Types And Forms Of Lifts (AREA)
  • Metal Rolling (AREA)
  • Carpets (AREA)
  • Wrappers (AREA)
EP97933694A 1996-08-14 1997-07-22 Palplanche en forme de "u" a faible resistance d'enfoncement Expired - Lifetime EP0918907B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LU88805A LU88805A1 (fr) 1996-08-14 1996-08-14 Palplanche en forme de "u" à faible résistance d'enfoncement
LU88805 1996-08-14
PCT/EP1997/003951 WO1998006905A1 (fr) 1996-08-14 1997-07-22 Palplanche en forme de 'u' a faible resistance d'enfoncement

Publications (3)

Publication Number Publication Date
EP0918907A1 EP0918907A1 (fr) 1999-06-02
EP0918907B1 EP0918907B1 (fr) 2002-01-23
EP0918907B2 true EP0918907B2 (fr) 2006-01-18

Family

ID=19731620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97933694A Expired - Lifetime EP0918907B2 (fr) 1996-08-14 1997-07-22 Palplanche en forme de "u" a faible resistance d'enfoncement

Country Status (13)

Country Link
US (1) US6190093B1 (ru)
EP (1) EP0918907B2 (ru)
JP (1) JP3914577B2 (ru)
KR (1) KR100497424B1 (ru)
AT (1) ATE212400T1 (ru)
AU (1) AU3696097A (ru)
CZ (1) CZ296772B6 (ru)
DE (1) DE69710076T3 (ru)
LU (1) LU88805A1 (ru)
PL (1) PL185213B1 (ru)
RU (1) RU2190061C2 (ru)
UA (1) UA56181C2 (ru)
WO (1) WO1998006905A1 (ru)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7182551B2 (en) * 2002-11-01 2007-02-27 Jeff Moreau Re-enforced composite sheet piling segments
US20040141815A1 (en) * 2002-11-01 2004-07-22 Jeff Moreau Fiber re-enforcement of joints and corners of composite sheet piling segments
DE10339957B3 (de) * 2003-08-25 2005-01-13 Peiner Träger GmbH Doppel-T-förmiges Spundwandprofil aus Stahl und Werkzeug zur Herstellung des Spundwandprofils
US7018140B1 (en) * 2004-11-23 2006-03-28 Chaparral Steel Company Z-shaped sheet piling
PL1793044T3 (pl) * 2005-12-01 2009-12-31 Arcelormittal Belval & Differdange Walcowane na gorąco płaskie stalowe profile grodziowe
DE102009022413A1 (de) * 2009-05-22 2010-11-25 Contexo Ag Vorgeformte Anschweißspundbohle sowie Anordnung aus mehreren Spundwandkomponenten mit einer derartigen Anschweißspundbohle
US20140270979A1 (en) * 2013-03-14 2014-09-18 Northern States Metals Company Flexible post for use as a pile
WO2015029426A1 (ja) * 2013-08-30 2015-03-05 Ｊｆｅスチール株式会社 鋼矢板
CN108842756A (zh) * 2018-07-04 2018-11-20 佛山科学技术学院 一种钢板桩
RU2692385C1 (ru) * 2018-12-03 2019-06-24 Публичное акционерное общество "Северсталь" Шпунтовая свая
RU2701265C1 (ru) * 2018-12-10 2019-09-25 Публичное акционерное общество "Северсталь" Шпунтовая стенка
RU2702959C1 (ru) * 2018-12-28 2019-10-15 Публичное акционерное общество "Северсталь" Шпунтовая свая
RU2740561C1 (ru) * 2020-06-23 2021-01-15 Акционерное общество «ЕВРАЗ Нижнетагильский металлургический комбинат» (АО «ЕВРАЗ НТМК») Шпунтовая свая типа Ларсен

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE433704A (ru) *
US794268A (en) * 1904-11-17 1905-07-11 Henry Wittekind Metal sheet-piling.
US801946A (en) * 1905-01-14 1905-10-17 Julius R Wemlinger Metal sheet-piling.
US797786A (en) * 1905-05-06 1905-08-22 John R Williams Metal sheet-piling.
US848143A (en) * 1905-10-06 1907-03-26 Julius R Wemlinger Metal sheet-piling.
US818596A (en) * 1905-10-31 1906-04-24 John R Williams Metal sheet-piling.
US937817A (en) * 1909-04-01 1909-10-26 Lackawanna Steel Co Sheet-piling.
US1012124A (en) * 1911-04-22 1911-12-19 Lackawanna Steel Co Metal sheet-piling.
FR434497A (fr) * 1911-09-22 1912-02-03 Lackawanna Steel Co Cloisons et palplanches en tole d'acier
FR686816A (fr) * 1928-12-24 1930-07-31 Perfectionnements apportés aux files de palplanches à interenclanchement
DE1135384B (de) * 1954-05-08 1962-08-23 Hoerder Huettenunion Ag Staehlerne Spundbohle mit Verstaerkungslamellen
US4863315A (en) * 1988-11-07 1989-09-05 Wickberg Norman E Retaining wall member

Also Published As

Publication number Publication date
CZ47299A3 (cs) 2000-02-16
JP3914577B2 (ja) 2007-05-16
DE69710076T3 (de) 2006-08-03
AU3696097A (en) 1998-03-06
KR100497424B1 (ko) 2005-07-01
EP0918907B1 (fr) 2002-01-23
RU2190061C2 (ru) 2002-09-27
US6190093B1 (en) 2001-02-20
JP2001502767A (ja) 2001-02-27
PL185213B1 (pl) 2003-04-30
KR20000029981A (ko) 2000-05-25
UA56181C2 (ru) 2003-05-15
DE69710076D1 (de) 2002-03-14
LU88805A1 (fr) 1998-02-16
EP0918907A1 (fr) 1999-06-02
DE69710076T2 (de) 2002-07-18
ATE212400T1 (de) 2002-02-15
CZ296772B6 (cs) 2006-06-14
PL331736A1 (en) 1999-08-02
WO1998006905A1 (fr) 1998-02-19

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