EP0918907A1 - Palplanche en forme de "u" a faible resistance d'enfoncement - Google Patents
Palplanche en forme de "u" a faible resistance d'enfoncementInfo
- Publication number
- EP0918907A1 EP0918907A1 EP97933694A EP97933694A EP0918907A1 EP 0918907 A1 EP0918907 A1 EP 0918907A1 EP 97933694 A EP97933694 A EP 97933694A EP 97933694 A EP97933694 A EP 97933694A EP 0918907 A1 EP0918907 A1 EP 0918907A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet pile
- wing
- corners
- equal
- pile according
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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 wing) to which are connected two legs (called sheet pile cores) 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 interlocking locks . This plane then forms the neutral plane in bending of the sheet pile curtain in the shape of "U".
- Sheet piles with a large useful width in principle make it possible to reduce installation costs, because fewer sheet piles have to be driven into the ground to achieve a length of given curtain
- Deep sheet piles can have reduced thicknesses of material at the level of the wing and the cores while offering a high modulus of resistance, which reduces of course the cost price of the sheet piles
- the present invention has found a solution which makes it possible to have a reduction in the sinking resistance of a "U" shaped sheet pile while improving the stability of the sheet pile during its implementation. .
- the arcuate wing has an excess thickness of material at the level of the two connections to the lateral members in order to present an outer face that is substantially flat over its entire width.
- this extra thickness of material which is located on the outer side of the arched wing, significantly increases the moment of inertia and the resistance module of the sheet pile, which it considerably strengthens the sheet pile section and prevents it from deforming 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 sinking of a sheet pile in the shape of a "U" of given section by an addition 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 outside the corners. This avoids significant compaction of the soil in the concave corners, which reduces the resistance to sinking of 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 of the respective core in said concave corners, seem to give the best results from the point of view of reduction in the resistance to sinking of the sheet pile. This conclusion does not, however, exclude the use of any curved surfaces, tangent or not tangent to the faces of the wing and of the respective web, or even polygonal surfaces or a simple plane surface to define the connecting surfaces in said corners. concave, provided of course that the concave corners 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 truly significant reduction in threshing energy is beginning to be achieved with a cylindrical connection surface with a radius equal to 75 mm which is tangent to the faces of the wing and respective soul in the concave corners.
- said additional thickness must be such that the concave corners at the location of the wing / core connections are at least as open as a tangent cylindrical connection with a radius of 75 mm
- said local allowance must be at least sufficient for a fictitious cylindrical surface, which has a radius at least equal to 75 mm and which is tangent to the two planes which would have formed the respective concave wing / core connection corn in the absence of said additional thickness, is located completely inside said excess thickness between the two tangency generators
- the convex corners at the location of the wing / core connections are preferably only slightly rounded (rounding radius ⁇ 25 mm), so as to give the profile a moment of inertia as high as possible by concentration d '' maximum material in the outer part of the souls
- the sheet pile according to the invention is advantageously a steel sheet pile obtained by hot rolling.
- a preferred embodiment of a sheet pile according to the invention is described on the basis of the attached drawings, in which
- Figure 1 shows a cross section of one half of the sheet pile
- Figure 2 shows an enlargement of a wing / core connection of the sheet pile of Figure 1
- Figure 1 shows a cross section of half of 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 identified by the reference 8
- This sheet pile has a wing 10 substantially planar and perpendicular to the plane of symmetry 8 of the section.
- To this wing 10 are connected two substantially flat webs 12, of which only the left web is shown in FIG.
- 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 d 'another sheet pile
- the central axis of the lock 14, which is perpendicular to the plane of the drawing, is identified by the reference 15 II will again noted that the wing 10 is generally substantially thicker than the webs 12.
- the acute angle ⁇ formed between the cores and a plane parallel to the wing is approximately 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 °.
- convex corners defined by the wing / core connections (or simply “convex corners"), the corner located on the outside of the sheet pile and marked in Figure 1 by the reference arrow 16, as well as its symmetrical corner not shown; and “concave corners defined by the wing / core connections” (or simply “concave corners”), the corner located on the inside of the sheet pile and marked in Figure 1 by the reference arrow 18, as well as its symmetrical corner not shown .
- the convex corners 16 connect the outer planar faces 20 of the cores
- the concave corners 18 are, according to the invention, substantially flattened by a local thickening 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 identified by the reference number 24 in Figure 2). It can be seen that this concave corner 24 has a rounding whose radius is determined by rolling constraints and corresponds approximately 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 to Consequently, making this corner more open, is represented in the same figure by the hatched surface 26.
- This additional thickness 26 defines a concave connecting surface 30. It remains to note that the symmetrical concave corner naturally has the same appearance.
- the concave connecting surface 30 is a cylindrical connecting surface which is tangent to the inner plane face of the wing 10 and to the inner plane face 34 of the core 12.
- the arrows 36 in FIG. 2 show how particles of soil can flow freely along the cylindrical connection surface 30 thus avoiding the formation of a strongly compacted core in the concave corner 18 which opposes the sinking of the sheet pile in the shape of a "U".
- Threshing tests carried out in a standardized sand bed have shown that a significant reduction in threshing energy is started with a cylindrical connection surface with a radius equal to 75 mm which is tangent to the faces of the wing and the respective core in the concave corners at the point of the wing / core connection.
- the trace of this "minimal" cylindrical connection is represented by an 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 / core connection corner in the absence of the allowance 26, is supposed to determine the minimum allowance in the concave corners necessary to obtain a significant reduction in the threshing energy.
- the reference 40 marks the trace of a polygonal connecting surface which is located between the surface 30 and the minimum material surface 38.
- the sheet piles described are distinguished from known "U" shaped sheet piles in particular: a) by a lower resistance to sinking, which is especially noticeable in sandy soils during application by threshing or by vibration; b) by a notable increase in the plastic moment and in the capacity of rotation in bending which goes hand in hand with the reduction in the resistance to sinking, which allows a significant increase in the yield on the site; c) by improving the torsional strength of the sheet pile.
- the present invention presents a profile of threshing and sinking by vibration ideal for the implementation in difficult conditions.
Landscapes
- 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)
- Woven Fabrics (AREA)
- Road Paving Machines (AREA)
- Types And Forms Of Lifts (AREA)
- Metal Rolling (AREA)
- Carpets (AREA)
- Wrappers (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU88805 | 1996-08-14 | ||
| LU88805A LU88805A1 (fr) | 1996-08-14 | 1996-08-14 | Palplanche en forme de "u" à faible résistance d'enfoncement |
| 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 true EP0918907A1 (fr) | 1999-06-02 |
| EP0918907B1 EP0918907B1 (fr) | 2002-01-23 |
| EP0918907B2 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 (fr) |
| EP (1) | EP0918907B2 (fr) |
| JP (1) | JP3914577B2 (fr) |
| KR (1) | KR100497424B1 (fr) |
| AT (1) | ATE212400T1 (fr) |
| AU (1) | AU3696097A (fr) |
| CZ (1) | CZ296772B6 (fr) |
| DE (1) | DE69710076T3 (fr) |
| LU (1) | LU88805A1 (fr) |
| PL (1) | PL185213B1 (fr) |
| RU (1) | RU2190061C2 (fr) |
| UA (1) | UA56181C2 (fr) |
| WO (1) | WO1998006905A1 (fr) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040141815A1 (en) * | 2002-11-01 | 2004-07-22 | Jeff Moreau | Fiber re-enforcement of joints and corners of composite sheet piling segments |
| US7182551B2 (en) * | 2002-11-01 | 2007-02-27 | Jeff Moreau | Re-enforced 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 |
| JP6086147B2 (ja) * | 2013-08-30 | 2017-03-01 | 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 |
| WO2025089991A1 (fr) * | 2023-10-27 | 2025-05-01 | Акционерное Общество "Металлургический Завод Балаково" | Palplanche à rainure-languette en forme de u |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE433704A (fr) | ||||
| 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 |
| SU1477842A1 (ru) * | 1985-08-13 | 1989-05-07 | Днепропетровский Металлургический Институт Им.Л.И.Брежнева | Шпунтова сва |
| US4863315A (en) * | 1988-11-07 | 1989-09-05 | Wickberg Norman E | Retaining wall member |
-
1996
- 1996-08-14 LU LU88805A patent/LU88805A1/fr unknown
-
1997
- 1997-07-22 RU RU99104491/03A patent/RU2190061C2/ru active
- 1997-07-22 CZ CZ0047299A patent/CZ296772B6/cs not_active IP Right Cessation
- 1997-07-22 KR KR10-1999-7001237A patent/KR100497424B1/ko not_active Expired - Fee Related
- 1997-07-22 WO PCT/EP1997/003951 patent/WO1998006905A1/fr not_active Ceased
- 1997-07-22 EP EP97933694A patent/EP0918907B2/fr not_active Expired - Lifetime
- 1997-07-22 UA UA99031376A patent/UA56181C2/uk unknown
- 1997-07-22 DE DE69710076T patent/DE69710076T3/de not_active Expired - Lifetime
- 1997-07-22 US US09/242,367 patent/US6190093B1/en not_active Expired - Lifetime
- 1997-07-22 AT AT97933694T patent/ATE212400T1/de not_active IP Right Cessation
- 1997-07-22 AU AU36960/97A patent/AU3696097A/en not_active Abandoned
- 1997-07-22 JP JP50932798A patent/JP3914577B2/ja not_active Expired - Fee Related
- 1997-07-22 PL PL97331736A patent/PL185213B1/pl unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9806905A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69710076T2 (de) | 2002-07-18 |
| JP2001502767A (ja) | 2001-02-27 |
| RU2190061C2 (ru) | 2002-09-27 |
| EP0918907B1 (fr) | 2002-01-23 |
| KR20000029981A (ko) | 2000-05-25 |
| DE69710076D1 (de) | 2002-03-14 |
| CZ47299A3 (cs) | 2000-02-16 |
| ATE212400T1 (de) | 2002-02-15 |
| UA56181C2 (uk) | 2003-05-15 |
| PL185213B1 (pl) | 2003-04-30 |
| CZ296772B6 (cs) | 2006-06-14 |
| DE69710076T3 (de) | 2006-08-03 |
| LU88805A1 (fr) | 1998-02-16 |
| JP3914577B2 (ja) | 2007-05-16 |
| PL331736A1 (en) | 1999-08-02 |
| EP0918907B2 (fr) | 2006-01-18 |
| AU3696097A (en) | 1998-03-06 |
| KR100497424B1 (ko) | 2005-07-01 |
| US6190093B1 (en) | 2001-02-20 |
| WO1998006905A1 (fr) | 1998-02-19 |
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