EP0633360B1 - Pile coupling for prefabricated pile elements made of concrete - Google Patents
Pile coupling for prefabricated pile elements made of concrete Download PDFInfo
- Publication number
- EP0633360B1 EP0633360B1 EP19940201936 EP94201936A EP0633360B1 EP 0633360 B1 EP0633360 B1 EP 0633360B1 EP 19940201936 EP19940201936 EP 19940201936 EP 94201936 A EP94201936 A EP 94201936A EP 0633360 B1 EP0633360 B1 EP 0633360B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wave
- pile
- distance
- coupling
- sleeves
- 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
Links
- 230000008878 coupling Effects 0.000 title claims description 20
- 238000010168 coupling process Methods 0.000 title claims description 20
- 238000005859 coupling reaction Methods 0.000 title claims description 20
- 239000002184 metal Substances 0.000 claims description 16
- 238000003466 welding Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 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
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/12—Structures made of specified materials of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements
Definitions
- prefabricated pile elements of high-grade concrete can be used, such as for instance disclosed in DE-OS 21.20.691.
- the length of these prefabricated pile elements is limited to approximately 20-25 m. If the bearing ground layers are located at a greater depth below the ground level than the length of these conventional, prefabricated pile elements, these pile elements must be coupled in any way so as to form a pile element of a sufficient length.
- a pile coupling of the above-described type is known from practice.
- a first prefabricated pile element has been driven into the ground for the larger part, a second pile element is coupled thereto by welding together the metal sleeves which are cast in at the ends of the pile elements to be coupled.
- welding together the cast-in metal sleeves requires quite some time and, moreover, should be carried out while the pile-driving rig is stationary, which is undesired because it is expensive.
- the thus obtained pile coupling has poor resistance to tensile stresses acting on the weld, which may give rise to cracks so that the prefabricated pile elements become loose from each other, which has a very adverse impact on the bearing capacity and the reliability of the thus formed foundation pile.
- the object of the invention is to provide a pile coupling of the above-described type, wherein these drawbacks have been overcome.
- this object is realized by providing a pile coupling in which each sleeve is of a wavy design and has the shape of a solid of revolution and has a length of at least one complete wave period, the wave form at the location of the wave crest on the end face of the pile element being extended over a certain distance, such that when the end faces butt on each other, the distance between the wave troughs located on both sides of the joint face is greater than the wave period, and two half clamping rings, provided with a corresponding, regular wave profile and having a length of at least two wave periods, are clamped around the metal sleeves, the distance between the corresponding wave troughs in the half clamping rings being smaller than the distance between the wave troughs of the metal sleeves, the arrangement being such that the end faces of the pile elements are pressed against each other with pretension.
- the prefabricated pile elements to be coupled are pressed against each other with pretension.
- the pile elements consist here of helically threaded pile sections, made of steel.
- the pile coupling comprises a metal outer sleeve, a metal inner sleeve and a resilient liner member of rubber, fixed to the inner sleeve by means of an adhesive.
- the liner member is pressed radially inwardly into the threads of the pile elements when the inner and outer sleeves are moved in the axial direction relative to each other.
- the pile coupling does not allow a connection of the pile elements under axial pretension.
- the coupling further comprises two half clamping rings 6, provided with a wave profile 3 corresponding to the wave profile provided in the sleeves 2, 2'.
- the length of the two half rings approximately corresponds to twice the length of a metal sleeve 2, 2'.
- the wave form of the half clamping rings 6 deviates from the wave form 3 of the sleeves 2, 2' in the sense that the distance between the wave troughs on both sides of the joint face 4, 4' is equal to one wave period a of the wave profile 3 of the sleeves 2, 2' or even somewhat smaller.
- each half clamping ring 6 is provided with clamping blocks 7, secured in the wave troughs by welding and provided with drilled holes 8.
- bolts 9 are passed through the drilled holes 8 of the clamping blocks 7 and tightened by means of nuts 10.
- the ends of the pile elements 1, 1' are coupled to each other in a highly reliable manner, so that the coupled pile elements indeed behave like a single, extended pile.
- the coupling can be arranged considerably more quickly than the time required for welding together the edges of the two metal sleeves 2, 2', so that the pile-driving rig used for making foundation piles is out of operation for a considerably shorter period.
Description
Claims (3)
- A pile coupling for prefabricated pile elements made of concrete, each comprising, at the end to be coupled, a cast-in metal sleeve (2,2'), said metal sleeves being interconnectable, characterized in that each sleeve (2, 2') is of a wavy design and has the shape of a solid of revolution and has a length of at least one complete wave period (a), the wave form (3) at the location of the wave crest on the end face (4, 4') of the pile element being extended over a certain distance (x), such that when the end faces (4, 4') butt on each other, the distance (a + 2x) between the wave troughs (14, 14') located on both sides of the joint face is greater than the wave period (a), and two half clamping rings (6), provided with a corresponding, regular wave profile (3) and having a length of at least two wave periods (a), are clamped around the metal sleeves (2, 2'), the distance (a) between the corresponding wave troughs in the half clamping rings (6) being smaller (2x) than the distance (a + 2x) between the wave troughs (14, 14') of the metal sleeves (2, 2'), the arrangement being such that the end faces (4,4') of the pile elements (1,1') are pressed against each other with pretension.
- A pile coupling according to claim 1, characterized in that the metal sleeve (2) is provided with a sinusoidal wave profile having a length of at least two complete wave periods (a).
- A pile coupling according to claims 1-2, characterized in that at the location of the ends, viewed in circumferential direction, the half clamping rings (6) are provided with clamping blocks (7), secured in the wave troughs by welding and provided with a drilled hole (8).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9301177 | 1993-07-05 | ||
NL9301177A NL9301177A (en) | 1993-07-05 | 1993-07-05 | Post coupling for prefabricated concrete post elements. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0633360A1 EP0633360A1 (en) | 1995-01-11 |
EP0633360B1 true EP0633360B1 (en) | 1998-05-13 |
Family
ID=19862623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19940201936 Expired - Lifetime EP0633360B1 (en) | 1993-07-05 | 1994-07-04 | Pile coupling for prefabricated pile elements made of concrete |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0633360B1 (en) |
JP (1) | JPH0762649A (en) |
DE (1) | DE69410172T2 (en) |
NL (1) | NL9301177A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111794258B (en) * | 2020-07-24 | 2021-09-28 | 温州泰乐维工程设计有限公司 | Foundation pit dewatering system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB985130A (en) * | 1964-01-14 | 1965-03-03 | Jack Richard Baittinger | Improvements in and relating to joints for pile shells and the like |
AT350980B (en) * | 1975-06-11 | 1979-06-25 | Bauwesen Ag F | JOINT CONNECTION FOR A PIPE IN THE SOIL MADE IN THE HORIZONTAL PRESSING METHOD |
NL158240B (en) * | 1976-01-23 | 1978-10-16 | Foundacon B V | FOUNDATION POLE. |
-
1993
- 1993-07-05 NL NL9301177A patent/NL9301177A/en not_active Application Discontinuation
-
1994
- 1994-07-04 DE DE1994610172 patent/DE69410172T2/en not_active Expired - Fee Related
- 1994-07-04 EP EP19940201936 patent/EP0633360B1/en not_active Expired - Lifetime
- 1994-07-05 JP JP15347494A patent/JPH0762649A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
NL9301177A (en) | 1995-02-01 |
JPH0762649A (en) | 1995-03-07 |
DE69410172D1 (en) | 1998-06-18 |
DE69410172T2 (en) | 1998-09-03 |
EP0633360A1 (en) | 1995-01-11 |
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