APPARATUS FOR ENDING A TUBULAR PILE FOUNDATION

Abstract

An apparatus for ending a tubular pile foundation includes a substantially plate-shaped pressure distribution plate which comprises a substantially flat plate surface and a contact surface opposite the plate surface for a structure to be erected on the tubular pile foundation. The pressure distribution plate can be fitted with the plate surface onto a pile end of a tubular pile of the tubular pile foundation. At least one centering collar for centering the apparatus on the pile end is arranged on the plate surface, and at least one support structure for reinforcing the pressure distribution plate is arranged on the contact surface.

Claims

1. An apparatus for ending a tubular pile foundation, in particular a pile head plate, wherein the apparatus comprises a substantially plate-shaped pressure distribution plate which comprises a substantially flat plate surface and a contact surface opposite the plate surface for a structure to be erected on the tubular pile foundation, wherein the pressure distribution plate can be fitted with the plate surface onto a pile end of a tubular pile of the tubular pile foundation, wherein at least one centering collar for centering the apparatus on the pile end is arranged on the plate surface, characterized in that at least one support structure for reinforcing the pressure distribution plate is arranged on the contact surface.

2. The apparatus according to claim 1, wherein the pressure distribution plate has a polygonal, preferably octagonal, outer contour.

3. The apparatus according to claim 1, wherein the support structure comprises a substantially plate-shaped support block, preferably arranged centrally on the contact surface.

4. The apparatus according to claim 1, wherein the support structure comprises at least one support rib, wherein the at least one support rib is preferably formed as a substantially bar-shaped wall.

5. The apparatus according to claim 3, wherein the at least one support rib is arranged on the support block or adjoins the support block, wherein the at least one support rib is preferably formed integral with the support block.

6. The apparatus according to claim 1, wherein the at least one centering collar comprises at least one collar section in the form of a circular arc.

7. The apparatus according to claim 6, wherein the at least one centering collar comprises multiple, preferably two to four, collar sections in the form of circular arcs, wherein the collar sections in the form of circular arcs are preferably uniformly distributed along a common circular path.

8. The apparatus according to claim 6, wherein the at least one, preferably each, collar section in the form of a circular arc has a stop region along a section longitudinal extent, wherein the stop region preferably has a substantially constant stop height.

9. The apparatus according to claim 8, wherein the at least one collar section in the form of a circular arc has a section height reduced with respect to the stop height along the section longitudinal extent in the region of its section ends.

10. The apparatus according to claim 6, wherein the at least one collar section in the form of a circular arc is arranged opposite the support structure arranged on the contact surface.

11. The apparatus according to claim 1, wherein the pressure distribution plate consists, at least partially, preferably substantially completely, of cast iron.

12. The apparatus according to claim 1, wherein the apparatus has at least one through hole, wherein the at least one through hole preferably has a diameter of larger than 50 mm, particularly preferably larger than 70 mm.

13. The apparatus according to claim 12, wherein the at least one through hole is formed conically tapering in the direction of the plate surface, wherein a wall angle of an inside wall of the at least one through hole to the plate surface is preferably approximately 91° to approximately 110°, particularly preferably approximately 98°.

14. The apparatus according to claim 1, wherein an anti-tilt device protruding from the plate surface is arranged on the apparatus.

15. The apparatus according to claim 14, wherein the anti-tilt device is partially arranged in the at least one through hole.

16. The apparatus according to claim 14, wherein the anti-tilt device has a substantially plate-shaped central plate and at least one anti-tilt protrusion projecting, preferably substantially perpendicularly, from a first central plate surface of the central plate, wherein the at least one anti-tilt protrusion preferably has a protrusion end angled in the direction of the first central plate surface.

17. The apparatus according to claim 16, wherein the anti-tilt device comprises multiple, preferably two to four, anti-tilt protrusions, wherein the anti-tilt protrusions are preferably uniformly distributed along a central plate outer contour of the central plate.

18. The apparatus according to claim 16, wherein the at least one anti-tilt protrusion is arranged in the manner of a spring on the central plate.

19. The apparatus according to claim 16, wherein the anti-tilt device has at least one clamp element projecting from a second central plate surface of the central plate opposite the first central plate surface at a clamp angle of approximately 90° to approximately 110°, preferably approximately 95°, wherein the at least one clamp element preferably has an element end angled in the direction of the second central plate surface.

20. The apparatus according to claim 19, wherein the anti-tilt device comprises multiple, preferably two to four, clamp elements, wherein the clamp elements are preferably uniformly distributed along a central plate outer contour of the central plate.

21. The apparatus according to claim 19, wherein the at least one clamp element is arranged in the manner of a spring on the central plate.

22. The apparatus according to claim 15, wherein the at least one clamp element is substantially located completely within the through hole and is in contact with an inside wall of the through hole.

23. The apparatus according to claim 16, wherein the central plate has a, preferably centrally arranged, central opening.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Further details and advantages of the present invention will be explained with reference to the following description of the figures, in which:

[0043] FIG. 1 is a perspective top view of the contact surface of a proposed apparatus for ending a tubular pile foundation,

[0044] FIG. 2 is a perspective bottom view of the plate surface of the apparatus according to FIG. 1,

[0045] FIG. 3 is a perspective view of an anti-tilt device,

[0046] FIG. 4 is a front view of the anti-tilt device according to FIG. 3,

[0047] FIG. 5 is a top view of the anti-tilt device according to FIG. 3,

[0048] FIG. 6 is a perspective top view of the apparatus according to FIG. 1 with an anti-tilt device according to FIG. 3 arranged on the apparatus,

[0049] FIG. 7 is a perspective bottom view of the apparatus according to FIG. 6,

[0050] FIG. 8a is a front view of a proposed apparatus with an anti-tilt device arranged thereon,

[0051] FIG. 8b is a top view of the apparatus according to FIG. 8a,

[0052] FIG. 8c is a side view of the apparatus according to FIG. 8b,

[0053] FIG. 8d is a sectional view along section line A-A in FIG. 8b,

[0054] FIG. 8e is a perspective sectional view along section line A-A in FIG. 8b,

[0055] FIG. 9 is a perspective sectional view of a pile end of a tubular pile of a tubular pile foundation with an apparatus for ending the tubular pile foundation arranged thereon,

[0056] FIG. 10 is a sectional view of the pile end according to FIG. 9,

[0057] FIG. 11 is a perspective sectional view of a pile end of a tubular pile of a tubular pile foundation with an apparatus for ending the tubular pile foundation arranged thereon, and

[0058] FIG. 12 is a sectional view of the pile end according to FIG. 11.

DETAILED DESCRIPTION OF THE INVENTION

[0059] FIG. 1 shows a perspective top view of the contact surface 5 of a proposed apparatus 1 for ending a tubular pile foundation 2 which is not represented here (see FIGS. 9 to 12 for this).

[0060] The apparatus 1 comprises a substantially plate-shaped pressure distribution plate 3 which has a contact surface 5 for a structure to be erected on the tubular pile foundation 2. In order to reinforce the pressure distribution plate 3, a support structure 9 is arranged on the contact surface 5.

[0061] The support structure 9 comprises a plate-shaped support block 11 which is arranged centrally on the contact surface 5. The support block 11 is formed integral with the pressure distribution plate 3.

[0062] Moreover, the support structure 9 comprises multiple support ribs 12 in the form of bar-shaped walls. The support ribs 12 run, starting from the outer contour 10 of the pressure distribution plate 3, up to the support block 11. The support ribs 12 are formed in such a way that the heights thereof increase substantially linearly in relation to the contact surface 5 along the longitudinal extents of the support ribs 12, starting from the outer contour 10 of the pressure distribution plate 3, up to the height of the support block 11. The support ribs 12 are formed integral with the support block 11 and with the pressure distribution plate 3.

[0063] The pressure distribution plate 3 has a polygonal, in the specific example octagonal, outer contour 10. Starting from each of the eight corners of the octagonal outer contour 10, a support rib 12 in each case runs to the support block 11, wherein, in the region of the corners of the outer contour 10, the support ribs 12 run substantially at right angles to an edge of the outer contour 10, which in each case connects two corners, in the direction of the support block 11. In each case, two support ribs 12 run parallel to one another to the support block 11. This arrangement of the support ribs 12 produces a cross-shaped support structure 9 having the support block 11 in the center.

[0064] The apparatus 1 shown has a through hole 16. The through hole 16 is arranged centrally and extends through the pressure distribution plate 3 and the support structure 9 arranged on the contact surface 5 of the pressure distribution plate 3. In the example shown, the through hole 16 runs through the centrally arranged support block 11 and through the pressure distribution plate 3. The through hole 16 is formed conically tapering in the direction of the lower plate surface 4 of the pressure distribution plate 3, which is not visible in FIG. 1. The inside wall 17 of the through hole 16, which is formed conically tapering in the direction of the plate surface 4 of the pressure distribution plate 3, is visible.

[0065] FIG. 2 shows a perspective bottom view of the plate surface 4 of the apparatus 1 according to FIG. 1. The pressure distribution plate 3 of the apparatus 1 has a substantially flat plate surface 4 opposite the contact surface 5. The pressure distribution plate 3 can be fitted with the plate surface 4 onto a pile end 6 of a tubular pile 7 of a tubular pile foundation 2 (see FIGS. 9 to 12).

[0066] In order to center the apparatus 1 on the pile end 6, a centering collar 8 is arranged on the plate surface 4. The centering collar 8 of the apparatus 1 shown comprises four collar sections 13 in the form of circular arcs, wherein the collar sections 13 in the form of circular arcs are uniformly distributed along a common circular path K. In other words, the centering collar 8 has interruptions or free spaces between the collar sections 13 in the form of circular arcs along the circular path K. These interruptions or free spaces prevent air inclusions under the pressure distribution plate 3, in the case of piles pressed with concrete, since air which is also introduced during the introduction of concrete can escape laterally in the region of the interruptions or free spaces.

[0067] Each of the collar sections 13 in the form of circular arcs has a stop region 14 along a section longitudinal extent AL, wherein a respective stop region 14 has a substantially constant stop height AH. A respective collar section 13 in the form of a circular arc has a section height reduced with respect to the stop height AH along the section longitudinal extent AL in the region of its section ends 15.

[0068] The collar sections 13 in the form of circular arcs are, in the example shown, arranged opposite the support structure 9 arranged on the contact surface 5, namely in such a way that multiple apparatuses 1 can be conveniently stacked on top of one another, in that a collar section 13 in the form of a circular arc can be inserted, in each case, with its stop region 14 having a substantially constant stop height AH between two support ribs 12, i.e. the longitudinal extent of a stop region 14 having a substantially constant stop height AH preferably corresponds to the distance between two support ribs 12 running parallel to one another.

[0069] The entire support structure 9 arranged on the contact surface 5 of the pressure distribution plate 3, comprising the support block 11 and the support ribs 12 as well as the collar sections 13 of the centering collar 8 arranged on the plate surface 4 of the pressure distribution plate 3, is formed integral with the pressure distribution plate 3. The integral nature of the apparatus 1 shown was achieved as a result of the pressure distribution plate 3, together with the support structure 9 and the collar sections 13, being produced by a casting process from ductile cast iron.

[0070] FIG. 3 shows a perspective view of an anti-tilt device 18 for a proposed apparatus 1, FIG. 4 shows a front view of the anti-tilt device according to FIG. 3, and FIG. 5 shows a top view of the anti-tilt device according to FIG. 3.

[0071] The anti-tilt device 18 shown comprises a substantially plate-shaped central plate 19 having a lower first central plate surface 20 which is not visible in this view, and having an upper second central plate surface 24 visible in this view. The central plate 19 has a centrally arranged central opening 27 which extends through the central plate 19.

[0072] The anti-tilt device 18 shown has multiple, in the specific example three, anti-tilt protrusions 21 projecting substantially perpendicularly from the first central plate surface 20 of the central plate 19. Each of the three anti-tilt protrusions 21, which are arranged in the manner of a spring on the central plate 19, has in each case a protrusion end 22 angled in the direction of the first central plate surface 20.

[0073] The anti-tilt device 18 has, moreover, multiple, in the specific example three, clamp elements 25 projecting from the second central plate surface 24 of the central plate 19 at a clamp angle KW (see FIG. 4). In the assembled state of the anti-tilt device 18, the clamp elements 25 are located in the conically formed through hole 16 of the apparatus 1. The clamp angle KW corresponds to the wall angle WW of the inside wall 17 of the conically tapering through hole 16, so that the anti-tilt device 18 is held stably and reliably in the through hole 16 (cf., e.g., FIG. 4 and FIG. 10).

[0074] Each of the three clamp elements 25, which are arranged in the manner of a spring on the central plate 19, has in each case an element end 26 angled in the direction of the second central plate surface 24. As a result, the operation of guiding the clamp elements 25 into the through hole 16 of the apparatus 1 is facilitated.

[0075] In the case of the anti-tilt device 18 shown, both the anti-tilt protrusions 21 and the clamp elements 25 are uniformly distributed along a central plate outer contour 23 of the central plate 19. In the specific example, an anti-tilt protrusion 21, a clamp element 25 spaced apart therefrom and a further anti-tilt protrusion 21, again spaced apart therefrom, are always arranged alternately along the central plate outer contour 23. A respective locating region 28 is located between an anti-tilt protrusion 21 and a clamp element 25 in each case. The locating regions 28 of the central plate 19 protrude slightly radially outwardly with respect to the anti-tilt protrusions 21 and the clamp elements 25 in a central plate plane of the central plate 19 (see, e.g., FIGS. 4 and 5). The locating regions 28 serve, in the assembled state of the anti-tilt device 18, to contact the anti-tilt device 18 against the plate surface 4 of the apparatus 1 (see, e.g., FIG. 7).

[0076] FIG. 6 shows a perspective top view of a proposed apparatus 1 with an anti-tilt device 18 arranged on the apparatus 1, wherein the anti-tilt device 18 is arranged protruding from the plate surface 4 on the apparatus 1. FIG. 7 shows a perspective bottom view of the apparatus 1 which is equipped with the anti-tilt device 18 according to FIG. 6.

[0077] The apparatus 1 shown in FIGS. 6 and 7 corresponds to the apparatus 1 according to FIGS. 1 and 2, and the anti-tilt device 18 corresponds to the anti-tilt device 18 according to FIGS. 3 to 5.

[0078] The anti-tilt device 18 is, in the shown assembled state of the anti-tilt device 18, partially arranged in the through hole 16 of the apparatus 1. In specific terms, the anti-tilt device 18, with its clamp elements 25, was guided into the through hole 16 until the locating regions 28 of the central plate 19 of the anti-tilt device 18 came to rest on the plate surface 4. The clamp elements 25 are located substantially completely within the through hole 16. In the shown assembled state of the anti-tilt device 18, the clamp elements 25 arranged in the manner of a spring on the central plate 19 press against the inside wall 17 of the through hole 16. In FIG. 7, the anti-tilt protrusions 21 projecting substantially perpendicularly from the first central plate surface 20 of the central plate 19 can be seen.

[0079] FIG. 8a shows a front view of a proposed apparatus 1 with an anti-tilt device 18 arranged thereon, FIG. 8b shows a top view of the apparatus 1 according to FIG. 8a, FIG. 8c shows a side view of the apparatus 1 according to FIG. 8b, FIG. 8d shows a sectional view along section line A-A in FIG. 8b, and FIG. 8e shows a perspective sectional view along section line A-A in FIG. 8b.

[0080] The apparatus 1 shown in FIGS. 8a to 8e corresponds to the apparatus 1 according to FIGS. 1 and 2, and the anti-tilt device 18 corresponds to the anti-tilt device 18 according to FIGS. 3 to 5.

[0081] The fact that the pressure distribution plate 3 is formed integral with the support structure 9 and the collar sections 13 of the centering collar 8 can be seen in particular in FIGS. 8d and 8e, and it can be seen in FIG. 8d that the clamp angle KW of the clamp elements 25 corresponds to the wall angle WW of the inside wall 17 of the conically tapering through hole 16, so that the anti-tilt device 18 is held stably and reliably in the through hole 16.

[0082] FIG. 9 shows a perspective sectional view of a pile end 6 of a tubular pile 7 of a tubular pile foundation 2 with an apparatus 1 for ending the tubular pile foundation 2 arranged thereon, and FIG. 10 shows a sectional view of the pile end 6 according to FIG. 9.

[0083] An apparatus 1 with an anti-tilt device 18 arranged on the apparatus 1 can be seen here, as illustrated in FIG. 6 and FIG. 7, wherein this apparatus 1 is fitted with the plate surface 4 of the pressure distribution plate 3 onto the pile end 6. The anti-tilt device 18 comprises multiple anti-tilt protrusions 21 which are uniformly distributed along a central plate outer contour 23 of the central plate 19 of the anti-tilt device 18 (see, e.g., FIG. 5) and which project substantially perpendicularly from the first central plate surface 20 of the central plate 19 (see, e.g., FIG. 7).

[0084] In the arrangement of the apparatus 1 on the pile end 6 shown, the anti-tilt device 18 is partially arranged in the interior of the hollow tubular pile 7. To this end, the apparatus 1 with the clamp elements 25 was first fitted onto the pile end 6, until the plate surface 4 of the pressure distribution plate 3 came to rest on the pile end 6. The anti-tilt protrusions 21 are located in the interior of the hollow tubular pile 7 and the pile end 6 comes to lie within the centering collar 8.

[0085] The centering collar 8 arranged on the plate surface 4 of the pressure distribution plate 3 and projecting from the plate surface 4, and the anti-tilt protrusions 21 act as guiding and centering aids, so that it can be ensured that the apparatus 1 is fitted substantially centrally onto the pile end 6. In particular, the anti-tilt device 18 or the clamp elements 25 thereof serve to prevent the apparatus 1 from slipping laterally from the pile end 6 and tipping downwards from the pile end 6.

[0086] The through hole 16 of the apparatus 1 aligns with the interior of the hollow tubular pile 7, so that in particular in the case of a tubular pile foundation 2 pressed with concrete, concrete or concrete emulsion as well as corresponding reinforcing elements can be easily introduced into the interior of the pile.

[0087] FIG. 11 shows a perspective sectional view of a pile end 6 of a tubular pile 7 of a tubular pile foundation 2, which is formed in the manner of a socket, with an apparatus 1 for ending the tubular pile foundation 2 arranged thereon, and FIG. 12 shows a sectional view of the pile end 6 according to FIG. 11.

[0088] The representations shown correspond to the representations in FIGS. 9 and 10 with the difference that the apparatus 1 is fitted onto a pile end 6 here, which is formed in the manner of a socket.

LIST OF REFERENCE NUMBERS

[0089] 1 Apparatus for ending a tubular pile foundation [0090] 2 Tubular pile foundation [0091] 3 Pressure distribution plate [0092] 4 Plate surface [0093] Contact surface [0094] 6 Pile end [0095] 7 Tubular pile [0096] 8 Centering collar [0097] 9 Support structure [0098] 10 Outer contour [0099] 11 Support block [0100] 12 Support rib [0101] 13 Collar section [0102] 14 Stop region [0103] Section end [0104] 16 Through hole [0105] 17 Inside wall [0106] 18 Anti-tilt device [0107] 19 Central plate [0108] 20 First central plate surface [0109] 21 Anti-tilt protrusion [0110] 22 Protrusion end [0111] 23 Central plate outer contour [0112] 24 Second central plate surface [0113] 25 Clamp element [0114] 26 Element end [0115] 27 Central opening [0116] 28 Locating region [0117] K Circular path [0118] AL Section longitudinal extent [0119] AH Stop height [0120] WW Wall angle [0121] KW Clamp angle