CENTERING SLEEVE FOR A PILE SHOE

Abstract

A centering sleeve is provided for a pile shoe to be disposed on a driven pile. The centering sleeve can be elongated starting from an upper end of the centering sleeve along a longitudinal axis to a lower end of the centering sleeve. The centering sleeve has an outer casing surface, and a centering device projecting from the casing surface is disposed on the casing surface.

Claims

1. A centering sleeve for a pile shoe to be disposed on a driven pile, wherein the centering sleeve is configured to be elongated starting from an upper end of the centering sleeve along a longitudinal axis to a lower end of the centering sleeve, wherein the centering sleeve has an outer casing surface, wherein a centering device projecting from the casing surface is disposed on the casing surface.

2. The centering sleeve according to claim 1, wherein the casing surface is rotationally symmetrical with respect to the longitudinal axis.

3. The centering sleeve according to claim 1, wherein the casing surface along the longitudinal axis has an outer diameter which is substantially constant with respect to the longitudinal axis.

4. The centering sleeve according to claim 1, wherein the centering sleeve consists of at least one plastic.

5. The centering sleeve according to claim 1, wherein the centering device comprises at least one fin extending circumferentially with respect to the longitudinal axis.

6. The centering sleeve according to claim 5, wherein the at least one circumferential fin projects substantially radially from the casing surface with respect to the longitudinal axis, wherein the at least one circumferential fin has a radial extension starting from the casing surface up to an outer end of the at least one circumferential fin.

7. The centering sleeve according to claim 5, wherein the at least one circumferential fin consists of at least one plastic.

8. The centering sleeve according to claim 5, wherein the at least one circumferential fin is disposed in the region of the upper end of the centering sleeve.

9. The centering sleeve according to claim 5, wherein the at least one circumferential fin comprises multiple fin segments, wherein two adjacent fin segments are disposed at a spacing from one another, wherein preferably the fin segments are disposed uniformly along a circumference of the casing surface.

10. The centering sleeve according to claim 9, wherein at least one fin segment, preferably all fin segments, has or have a recess or notch, wherein preferably the recess or notch is disposed substantially centrally.

11. The centering sleeve according to claim 5, wherein the centering device comprises a plurality, preferably two to ten, circumferential fins along the longitudinal axis.

12. The centering sleeve according to claim 11, wherein the circumferential fins project substantially radially from the casing surface with respect to the longitudinal axis, wherein the circumferential fins have a radial extension starting from the casing surface up to an outer end of the at least one circumferential fin.

13. The centering sleeve according to claim 12, wherein the radial extensions of the circumferential fins are different.

14. The centering sleeve according to claim 1, wherein at least one support structure for reinforcing the centering sleeve is disposed on an inner wall of the centering sleeve.

15. The centering sleeve according to claim 14, wherein the support structure extends from an upper end of the centering sleeve along a portion of the elongated centering sleeve.

16. The centering sleeve according to claim 14, wherein the support structure comprises support struts, wherein the support struts extend substantially radially to the inner wall of the centering sleeve with respect to the longitudinal axis.

17. The centering sleeve according to claim 1, wherein the centering sleeve has a sleeve section along the longitudinal axis and an adjoining connection section, wherein the sleeve section has the casing surface, wherein the connection section comprises at least one connecting device for connecting the centering sleeve to the pile shoe.

18. The centering sleeve according to claim 17, wherein the at least one connecting device is designed as a recess in the connection section, wherein preferably the at least one recess is designed to correspond to at least one connection device of the pile shoe.

19. The centering sleeve according to claim 17, wherein the connection section has at least one substantially conical outer surface, wherein an outer diameter of the at least one outer surface increases towards the longitudinal axis.

20. The centering sleeve according to claim 19, wherein the connection section has a first outer surface and an adjoining second outer surface in the direction of the longitudinal axis, wherein the first outer surface and the second outer surface are substantially conical, wherein the conicity of the first outer surface is greater than the conicity of the second outer surface.

21. The centering sleeve according to claim 20, wherein the at least one connecting device is formed in the second outer surface.

22. The centering sleeve according to claim 17, wherein the connection section has at least one substantially conical inner surface, wherein an inner diameter of the inner surface increases towards the longitudinal axis.

23. The centering sleeve according to claim 22, wherein the at least one inner surface comprises multiple, preferably two to eight, inner segments along a circumferential direction with respect to the longitudinal axis.

24. The centering sleeve according to claim 23, wherein the at least one inner surface comprises four inner segments along the circumferential direction, wherein two opposing first inner segments in the region of the lower end of the centering sleeve have a first radius of curvature with respect to the longitudinal axis, wherein two opposing second inner segments in the region of the lower end of the centering sleeve have a second radius of curvature with respect to the longitudinal axis, wherein the second radius of curvature is greater than the first radius of curvature.

25. A pile shoe for a substantially tubular, in particular hollow-cylindrical, driven pile, wherein the centering sleeve according to claim 1 is or can be disposed on the pile shoe.

26. The pile shoe according to claim 25, wherein the pile shoe comprises a ramming structure for facilitating ramming of the pile shoe in a ramming direction into a subsoil.

27. The pile shoe according to claim 26, wherein the ramming structure comprises a plurality, preferably two to eight, particularly preferably four, ramming ribs and a pile shoe plate, wherein the ramming ribs project from the pile shoe plate in the ramming direction, starting from the pile shoe plate.

28. The pile shoe according to claim 27, wherein the ramming ribs are disposed in a cross shape or star shape on the pile shoe plate, wherein preferably the ramming ribs are designed to converge towards one another in the ramming direction.

29. The pile shoe according to claim 27, wherein outer sides of the ramming ribs are at an angle of approximately 20 to 60 to the pile shoe plate.

30. The pile shoe according to claim 25, wherein the pile shoe has a substantially flat support surface for setting up the pile shoe on a subsoil.

31. The pile shoe according to claim 25, wherein the pile shoe comprises a connection device disposed on the ramming structure, wherein the connection device extends from the ramming structure against the ramming direction, wherein the connection device comprises a connection section and an adjoining guide section against the ramming direction.

32. The pile shoe according to claim 31, wherein the connection section comprises at least one connection device for connecting the pile shoe to the centering sleeve.

33. The pile shoe according to claim 32, wherein the at least one connection device is designed as a, preferably substantially nose-shaped, projection, wherein preferably the at least one projection is designed to correspond to at least one connecting device of the centering sleeve.

34. The pile shoe according to claim 31, wherein the connection section has at least one substantially conical outer wall, wherein a diameter of the at least one outer wall increases in the driving direction.

35. The pile shoe according to claim 34, wherein the at least one outer wall comprises multiple, preferably two to eight, connection segments along a circumferential direction with respect to the driving direction.

36. The pile shoe according to claim 35, wherein the at least one outer wall comprises four connection segments along the circumferential direction, wherein two opposing first connection segments have a first connection curvature radius with respect to the driving direction, wherein two opposing second connection segments have a second connection curvature radius with respect to the driving direction, wherein the second connection curvature radius is greater than the first connection curvature radius.

37. The pile shoe according to claim 31, wherein the guide section comprises a plurality, preferably four, substantially cross-shaped guide webs, wherein preferably outer ends of the guide webs rest against an inner wall of the centering sleeve when the centering sleeve is disposed on the pile shoe.

38. The pile shoe according to claim 37, wherein the outer end of at least one guide web, preferably the outer ends of at least two opposite guide webs, has or have a widening, wherein the widening has a curvature, wherein preferably the curvature is designed to correspond to the inner wall of the centering sleeve when the centering sleeve is disposed on the pile shoe.

39. A driven pile comprising the pile shoe according to claim 25 disposed on a driving end of the driven pile, wherein a centering sleeve is disposed on the pile shoe.

40. The driven pile according to claim 39, wherein the driven pile is hollow-cylindrical at least in the region of the ramming end, wherein the centering sleeve is disposed inside the driven pile, wherein the centering device rests against an inner pile wall of the driven pile.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Further details and advantages of the present invention are explained in the following description with reference to the drawings, in which:

[0056] FIGS. 1a to 1h are different views of an exemplary embodiment of a proposed centering sleeve,

[0057] FIGS. 2a to 2h are different views of another exemplary embodiment of a proposed centering sleeve,

[0058] FIGS. 3a to 3f are different views of an exemplary embodiment of a proposed pile shoe,

[0059] FIGS. 4a to 4h are different views of another exemplary embodiment of a proposed centering sleeve,

[0060] FIGS. 5a to 5f are different views of a centering sleeve disposed on a pile shoe, and

[0061] FIG. 6 is a sectional view through a driven pile with pile shoe and centering sleeve disposed thereon.

DETAILED DESCRIPTION OF THE INVENTION

[0062] FIGS. 1a to 1h show different views of an exemplary embodiment of a proposed centering sleeve 1. FIG. 1a shows a first side view of the centering sleeve 1. FIG. 1b shows a second side view of the centering sleeve 1 in a viewing direction that is orthogonal to the viewing direction of the first side view. FIG. 1c shows a top view of the centering sleeve 1. FIG. 1d shows a bottom view of the centering sleeve 1. FIG. 1e shows a sectional view along the section line A-A shown in FIG. 1a. FIG. 1f shows a sectional view along the section line B-B shown in FIG. 1b. FIG. 1g shows a perspective top view of the centering sleeve 1. FIG. 1h shows a perspective bottom view of the centering sleeve 1.

[0063] The centering sleeve 1 is designed to be elongated, starting from an upper end 4 of the centering sleeve 1 along a longitudinal axis L to a lower end 5 of the centering sleeve 1. The centering sleeve 1 has an outer casing surface 6 on which a centering device 7 projecting from the casing surface 6 is disposed to facilitate the placement of a driven pile 2 (not shown here).

[0064] The casing surface 6 of the centering sleeve 1 shown here is rotationally symmetrical with respect to the longitudinal axis L and has an outer diameter 8 along the longitudinal axis L that is substantially constant with respect to the longitudinal axis L.

[0065] The centering device 7 of the centering sleeve 1 shown here comprises a fin 9 which is circumferential with respect to the longitudinal axis L. In other words, the fin 9 runs along a circumference of the casing surface 6 in a top view of the centering sleeve 1 (see FIG. 1c). The circumferential fin 9 projects radially from the casing surface 6 with respect to the longitudinal axis L and has a radial extension 10 starting from the casing surface 6 to an outer end of the circumferential fin 9.

[0066] The circumferential fin 9 of the centering sleeve 1 shown here is disposed in the region of the upper end 4 of the centering sleeve 1 and comprises multiple fin segments 11. Two adjacent fin segments 11 are disposed at a spacing from one another. The fin segments 11 are disposed evenly along the circumference of the casing surface 6, that is, the spaces between the fin segments 11 are substantially equal.

[0067] Each fin segment 11 has a centrally disposed recess 12, which is substantially U- or V-shaped and extends to the casing surface 6, whereby the fin segment 11 is divided into two components.

[0068] The centering sleeve 1 together with the surrounding fin 9 or its fin segments 11 consists entirely of plastic and was manufactured using a plastic injection molding process.

[0069] The centering sleeve 1 of this example has a sleeve section 17 and an adjoining connection section 18 along the longitudinal axis L, wherein the sleeve section 17 has the casing surface 6 from which the centering device 7 projects.

[0070] The connection section 18 of the centering sleeve 1 shown here comprises two connecting devices 19 for connecting the centering sleeve 1 to a pile shoe 3 (see FIGS. 5a to 5f). The two connecting devices 19 are designed as recesses in the connection section 18. The shape of the recesses corresponds to connection devices 20 of the pile shoe 3, such that a reliable connection with the pile shoe 3 can be established (see, for example, FIGS. 5a and 5c).

[0071] The connecting portion 18 has a first outer surface 21 and an adjoining second outer surface 22 in the direction of the longitudinal axis L.

[0072] The first outer surface 21 and the second outer surface 22 are each substantially conical, wherein respective outer diameters of the first outer surface 21 and the second outer surface 22 increase towards the longitudinal axis L. In the example shown, the conicity of the first outer surface 21 is greater than the conicity of the second outer surface 22, that is, the first outer surface 21 slopes more gently in the direction of the longitudinal axis L compared to the second outer surface 22, or the second outer surface 22 slopes more steeply compared to the first outer surface 21.

[0073] The connecting devices 19 are formed in the second outer surface 22 in this case.

[0074] As can be seen in particular in FIGS. 1c and 1g, a support structure 15 for reinforcing the centering sleeve 1 is disposed on an inner wall 14 of the centering sleeve 1 of this example. The support structure 15 extends from an upper end 4 of the centering sleeve 1 along a section of the elongated centering sleeve 1 (see also the sectional views in FIGS. 1e and 1f) and comprises three support struts 16 which, with respect to the longitudinal axis L, run substantially radially to the inner wall 14 of the centering sleeve 1. In the example shown, adjacent support struts 16 are disposed at an angle of approximately 120 to one another, starting from a center point of the support structure 15 (through which the longitudinal axis L of the centering sleeve 1 runs). The support struts 16 have a substantially U-shaped cross-section and are open downwards (that is, in the direction of the longitudinal axis L).

[0075] As can be seen in particular in FIGS. 1d and 1h, the connecting portion 18 of the centering sleeve 1 of this example has a substantially conical inner surface 23, wherein an inner diameter of the inner surface 23 increases towards the longitudinal axis L.

[0076] Along a circumferential direction with respect to the longitudinal axis L, the inner surface 23 comprises multiple inner segments 24, 25. Specifically, the inner surface 23 shown here comprises four inner segments 24, 25 along the circumferential direction, wherein two opposing first inner segments 24 in the region of the lower end 5 of the centering sleeve 1 have a first radius of curvature 26 with respect to the longitudinal axis L, and two opposing second inner segments 25 in the region of the lower end 5 of the centering sleeve 1 have a second radius of curvature 27 with respect to the longitudinal axis L. In this example, the second radius of curvature 27 is larger than the first radius of curvature 26.

[0077] FIGS. 2a to 2h show different views of another exemplary embodiment of a proposed centering sleeve 1. FIG. 2a shows a first side view of the centering sleeve 1. FIG. 2b shows a second side view of the centering sleeve 1 in a viewing direction that is orthogonal to the viewing direction of the first side view. FIG. 2c shows a top view of the centering sleeve 1. FIG. 2d shows a bottom view of the centering sleeve 1. FIG. 2e shows a sectional view along the section line C-C shown in FIG. 2a. FIG. 2f shows a sectional view along the section line D-D shown in FIG. 2b. FIG. 2g shows a perspective top view of the centering sleeve 1. FIG. 2h shows a perspective bottom view of the centering sleeve 1.

[0078] The centering sleeve 1 shown here corresponds to the centering sleeve 1 of FIGS. 1a to 1h with the difference that the centering device 7 comprises not only one but multiple circumferential fins 9. For improved clarity, in FIGS. 2a to 2h, not all features but only the differences to FIGS. 1a to 1h are marked with reference symbols and reference symbol lines.

[0079] The centering device 7 of the centering sleeve 1 shown here comprises four circumferential fins 9 along the longitudinal axis L. The circumferential fins 9 project substantially radially from the casing surface 6 with respect to the longitudinal axis L, wherein each of the circumferential fins 9 has a radial extension 10 starting from the casing surface 6 up to an outer end of the respective circumferential fins 9. The radial extensions 10 of the circumferential fins 9 shown here are different, whereby the centering sleeve 1 can be used for multiple different pile tube inner diameters.

[0080] In this example, each circumferential fin 9 comprises multiple spaced-apart fin segments 11 which are evenly disposed along a circumference of the casing surface 6 (see, for example, FIGS. 2c and 2g). The fin segments 11 of the circumferential fins 9 each have a recess 12 or a notch 13, which is disposed substantially centrally and is substantially U- or V-shaped. The fin segments 11 of the uppermost circumferential fin 9 (in the region of the upper end 4 of the centering sleeve 1) each have a centrally disposed recess 12, which is substantially U- or V-shaped and extends to the casing surface 6, whereby the respective fin segment 11 is divided into two components. The fin segments 11 of the circumferential fins 9 each have a notch 13, which is disposed substantially centrally and is substantially U- or V-shaped.

[0081] FIGS. 3a to 3f show different views of an exemplary embodiment of a proposed pile shoe 3. FIG. 3a shows a first side view of the pile shoe 3. FIG. 3b shows a second side view of the pile shoe 3 in a viewing direction that is orthogonal to the viewing direction of the first side view. FIG. 3c shows a bottom view of the pile shoe 3. FIG. 3d shows a top view of the pile shoe 3. FIG. 3e shows a perspective bottom view of the pile shoe 3. FIG. 3f shows a perspective top view of the pile shoe 3.

[0082] A centering sleeve 1 according to FIGS. 1a to 1h or 2a to 2h can be disposed on the pile shoe 3, for example, and a driven pile 2 can subsequently be placed on the pile shoe 3 with the centering sleeve 1 disposed thereon.

[0083] The pile shoe 3 shown here comprises a ramming structure 28 for facilitating ramming of the pile shoe 3 in a ramming direction R into a subsoil not shown in detail. In this example, the ramming structure 28 comprises four ramming ribs 29 and a pile shoe plate 30, from which the ramming ribs 29 project in the ramming direction R. The ramming ribs 29 are disposed in a cross shape on the pile shoe plate 30 and are designed to taper towards each other in the ramming direction R. Outer sides 31 of the ramming ribs 29 are at an angle W of approximately 45 to the pile shoe plate 30.

[0084] To facilitate the installation of the pile shoe 3 on a subsoil, the pile shoe 3 has a substantially flat support surface 32, which is formed by correspondingly flat ends of the ramming ribs 29.

[0085] To facilitate the connection of the pile shoe 3 to a centering sleeve 1, the pile shoe 3 comprises a connection device 33 disposed on the ramming structure 28, which connection device extends from the ramming structure 28 against the ramming direction R. The connection device 33 comprises a connection section 34 and an adjoining guide section 35 opposite to the ramming direction R.

[0086] The connection section 34 of the pile shoe 3 shown here comprises two connection devices 20 for connecting the pile shoe 3 to a centering sleeve 1 (see FIGS. 5a to 5f). The two connection devices 20 are designed as substantially nose-shaped projections. The shape of the nose-shaped projections corresponds to connecting devices 19 of the centering sleeve 1, such that a reliable connection with the centering sleeve 1 can be established (see, for example, FIGS. 5a and 5c).

[0087] The connection section 34 of the pile shoe 3 of this example has a substantially conical outer wall 36, wherein a diameter of the at least one outer wall 36 increases in the driving direction R.

[0088] Along a circumferential direction with respect to the ramming direction R, the outer wall 36 comprises multiple connection segments 37, 38. Specifically, the outer wall 36 shown here comprises four connection segments 37, 38, wherein two opposing first connection segments 37 have a first connection curvature radius 39 with respect to the ramming direction R, and two opposing second connection segments 38 have a second connection curvature radius 40 with respect to the ramming direction R. In this example, the second connection curvature radius 40 is larger than the first connection curvature radius 39.

[0089] For an optimal connection of the pile shoe 3 with the centering sleeve 1, the conicity and first connection radius of curvature 39 of the first connection segments 37 of the pile shoe 3 correspond to the conicity and first radius of curvature 26 of the first inner segments 24 of the centering sleeve 1, and the conicity and second connection radius of curvature 40 of the second connection segments 38 of the pile shoe 3 correspond to the conicity and second radius of curvature 27 of the second inner segments 25 of the centering sleeve 1 (see, for example, FIGS. 5c and 5d).

[0090] The guide section 35 of the pile shoe 3 of this example comprises four guide webs 41 disposed substantially in a cross shape. When the centering sleeve 1 is disposed on the pile shoe 3, outer ends 42 of the guide webs 41 rest against an inner wall 14 of the centering sleeve 1 (see e.g. FIGS. 5b to 5d).

[0091] The outer ends 42 of two opposite guide webs 41 of the four guide webs 41 have a widening 43. These widenings 43 have a curvature 44 which is designed to correspond to the inner wall 14 of the centering sleeve 1 for optimum fit.

[0092] FIGS. 4a to 4h show different views of another exemplary embodiment of a proposed pile shoe 3. FIG. 4a shows a first side view of the pile shoe 3. FIG. 4b shows a second side view of the pile shoe 3 in a viewing direction that is orthogonal to the viewing direction of the first side view. FIG. 4c shows a bottom view of the pile shoe 3. FIG. 4d shows a top view of the pile shoe 3. FIG. 4e shows a sectional view along the section line E-E shown in FIG. 4a. FIG. 4f shows a sectional view along the section line F-F shown in FIG. 4b. FIG. 4g shows a perspective bottom view of the pile shoe 3. FIG. 4h shows a perspective top view of the pile shoe 3.

[0093] The pile shoe 3 shown here corresponds to the pile shoe 3 of FIGS. 3a to 3f with the difference that the ramming ribs 29 of the ramming structure 28 of the pile shoe 3 extend further in the driving direction R and their outer sides 31 are at a larger angle W of about 60 to the pile shoe plate 30. FIGS. 5a to 5f show different views of a pile shoe 3 according to FIGS. 4a to 4h with a centering sleeve 1 disposed thereon according to FIGS. 1a to 1h.

[0094] FIG. 5a shows a side view of the pile shoe 3 with centering sleeve 1. FIG. 5b shows a top view of the pile shoe 3 with centering sleeve 1. FIG. 5c shows a first sectional view along the section line G-G shown in FIG. 5a. FIG. 5d shows a second sectional view in a viewing direction that is orthogonal to the viewing direction of the first side view. FIG. 5e shows a perspective bottom view of the pile shoe 3 with centering sleeve 1. FIG. 5f shows a perspective top view of the pile shoe 3 with centering sleeve 1.

[0095] The shape of the connection devices 20 of the pile shoe 3 as nose-shaped projections corresponds to the connecting devices 19 of the centering sleeve 1, such that a reliable connection of the pile shoe 3 with the centering sleeve 1 can be established (see, for example, FIGS. 5a and 5c).

[0096] Furthermore, for an optimal connection of the pile shoe 3 with the centering sleeve 1, the conicity and first connection radius of curvature 39 of the first connection segments 37 of the pile shoe 3 correspond to the conicity and first radius of curvature 26 of the first inner segments 24 of the centering sleeve 1, and the conicity and second connection radius of curvature 40 of the second connection segments 38 of the pile shoe 3 correspond to the conicity and second radius of curvature 27 of the second inner segments 25 of the centering sleeve 1 (see, for example, FIGS. 5c and 5d).

[0097] To ensure a stable fit of the centering sleeve 1 on the pile shoe 3, the outer ends 42 of two opposite guide webs 41 of the guide section 35 of the pile shoe 3 have a widening 43. These widenings 43 have a curvature 44 which is designed to correspond to the inner wall 14 of the centering sleeve 1 (see, for example, FIG. 5b).

[0098] FIG. 6 shows a sectional view through a driven pile 2 with a pile shoe 3 with centering sleeve 1 disposed thereon according to FIGS. 5a to 5f.

[0099] The driven pile 2 was placed onto the centering sleeve 1 with a driving end 45 of the driven pile 2 facing forward, wherein this placement was facilitated by the centering device 7 of the centering sleeve 1 consisting of flexible plastic. Outer ends of the fin segments 11 of the circumferential fin 9 of the centering device 7 were bent when the driven pile 2 was placed and were thus able to mold to the inner wall 46 of the driven pile 2, wherein a clamping adhesion of the fin segments 11 to the inner wall 46 of the pile results in a positive connection between the centering sleeve 1 and the driven pile 2.

[0100] The connection section 18 of the centering sleeve 1 has a first outer surface 21 and an adjoining second outer surface 22 in the direction of the longitudinal axis L, wherein the first outer surface 21 and the second outer surface 22 are substantially conical, wherein the conicity of the first outer surface 21 is greater than the conicity of the second outer surface 22. In other words, the first outer surface 21 slopes more gently towards the longitudinal axis L compared to the second outer surface 22, or the second outer surface 22 slopes more steeply compared to the first outer surface 21 (see FIG. 1a). The first outer surface 21 can be used to facilitate centric placement of the driven pile 2. When a driven pile 2 is placed, the driven pile 2 first hits the first outer surface 21 and when it is placed further in the direction of the longitudinal axis L, the steeper second outer surface 22 results in its adapting well to the inner wall 46 of the driven pile 2. In particular, when using a plastic centering sleeve 1, the driven pile 2 shears off the outer surfaces 21, 22 during placement. This placement and the associated shearing is facilitated by the steeper second outer surface 22. Overall, this can result in a firm and substantially tight connection between the driven pile 2 and the centering sleeve 1, particularly in the area of the second outer surface 22, such that no unwanted contamination (e.g. soil, sand) can penetrate into the interior of the driven pile 2, although it is possible that fluids such as water or gas can still penetrate into the interior of the driven pile 2 (it is therefore possible that the connection is not hermetically sealed).

LIST OF REFERENCE NUMERALS

[0101] 1 centering sleeve [0102] 2 driven pile [0103] 3 pile shoe [0104] 4 upper end of the centering sleeve [0105] 5 lower end of the centering sleeve [0106] 6 casing surface [0107] 7 centering device [0108] 8 outer diameter of the casing surface [0109] 9 circumferential fin [0110] 10 radial extension of the circumferential fin [0111] 11 fin segment [0112] 12 recess [0113] 13 notch [0114] 14 inner wall of the centering sleeve [0115] 15 support structure [0116] 16 support strut [0117] 17 sleeve section [0118] 18 connection section [0119] 19 connecting device [0120] 20 connection device [0121] 21 first outer surface [0122] 22 second outer surface [0123] 23 inner surface [0124] 24 first inner segment [0125] 25 second inner segment [0126] 26 first radius of curvature [0127] 27 second radius of curvature [0128] 28 ramming structure [0129] 29 ramming rib [0130] 30 pile shoe plate [0131] 31 outer side of the ramming rib [0132] 32 contact surface of the pile shoe [0133] 33 connection device [0134] 34 connection section [0135] 35 guide section [0136] 36 outer wall [0137] 37 first connection segment [0138] 38 second connection segment [0139] 39 first connection curvature radius [0140] 40 second connection curvature radius [0141] 41 guide bar [0142] 42 outer end of the guide bar [0143] 43 widening of the outer end [0144] 44 curvature [0145] 45 end of the driven pile [0146] 46 inner wall of the driven pile [0147] L longitudinal axis [0148] R driving direction [0149] W angle of the outer side of the ramming rib