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, the apparatus comprising: a pressure distribution plate having a substantially flat plate surface and a contact surface opposite the plate surface for supporting a structure to be erected on the tubular pile foundation, the pressure distribution plate to be fitted with the plate surface facing downward onto a pile end of a tubular pile of the tubular pile foundation, a centering collar for centering the apparatus on the pile end arranged on the plate surface of the pressure distribution plate, and a support structure configured to reinforce the pressure distribution plate arranged on the contact surface of the pressure distribution plate, the support structure comprising a support block, wherein the centering collar comprises a collar section having a circular arc form, the collar section having (i) a stop region along a section of a longitudinal extent of the collar section and (ii) end sections on opposite ends of the stop region, each of the end sections of the collar section having a reduced height as compared to a height of the stop region.

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

3. The apparatus according to claim 2, wherein the pressure distribution plate has an octagonal outer contour.

4. The apparatus according to claim 1, wherein the support block is arranged centrally on the contact surface of the pressure distribution plate.

5. The apparatus according to claim 1, wherein the support structure comprises a support rib.

6. The apparatus according to claim 5, wherein the support rib is arranged on the support block or adjoins the support block, and is formed integral with the support block.

7. The apparatus according to claim 5, wherein the support rib is a vertical wall extending between the support block and an outer contour of the pressure distribution plate.

8. The apparatus according to claim 1, wherein the collar section of the centering collar is one of a plurality of collar sections formed as circular arcs uniformly distributed along a common circular path.

9. The apparatus according to claim 1, wherein the collar section is arranged opposite the support structure arranged on the contact surface.

10. The apparatus according to claim 1, wherein the pressure distribution plate is formed of cast iron.

11. The apparatus according to claim 1, wherein the pressure distribution plate and the support structure have a through hole having a diameter larger than 50 mm extending therethrough.

12. The apparatus according to claim 11, wherein the through hole has a conical shape tapering radially inwardly toward the plate surface, wherein an inside wall of the through hole has a wall angle relative to the plate surface in a range of 91 to 110.

13. The apparatus according to claim 11, wherein the through hole has a diameter larger than 70 mm.

14. The apparatus according to claim 1, further comprising an anti-tilt device protruding from the plate surface and arranged on the pressure distribution plate.

15. The apparatus according to claim 14, wherein the anti-tilt device is partially arranged in a through hole extending through the pressure distribution plate and the support structure.

16. The apparatus according to claim 14, wherein the anti-tilt device comprises a central plate and an anti-tilt protrusion projecting from a first central plate surface of the central plate.

17. The apparatus according to claim 16, wherein the anti-tilt protrusion of the anti-tilt device is one of a plurality of anti-tilt protrusions uniformly distributed along a central plate outer contour of the central plate.

18. The apparatus according to claim 16, wherein the anti-tilt protrusion is configured as a spring on the central plate.

19. The apparatus according to claim 16, wherein the anti-tilt device further comprises a clamp element projecting from a second central plate surface of the central plate opposite the first central plate surface at a clamp angle in a range of 90 to 110.

20. The apparatus according to claim 19, wherein the clamp element of the anti-tilt device is one of a plurality of clamp elements uniformly distributed along a central plate outer contour of the central plate.

21. The apparatus according to claim 19, wherein the clamp element is configured as a spring on the central plate.

22. The apparatus according to claim 19, wherein the clamp element is arranged completely within a through hole extending through the pressure distribution plate and the support structure, and is in contact with an inside wall of the through hole.

23. The apparatus according to claim 19, wherein the clamp element has an element end angled toward a central longitudinal axis of the anti-tilt device.

24. The apparatus according to claim 16, wherein the central plate has a central opening.

25. The apparatus according to claim 24, wherein the central opening is centrally arranged.

26. The apparatus according to claim 16, wherein the anti-tilt protrusion has a protrusion end angled toward a central longitudinal axis of the anti-tilt device.

27. The apparatus according to claim 1, wherein the stop region has a constant stop height.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further details and advantages of the present invention will be explained with reference to the following description of the figures, in which:

(2) FIG. 1 is a perspective top view of the contact surface of a proposed apparatus for ending a tubular pile foundation,

(3) FIG. 2 is a perspective bottom view of the plate surface of the apparatus according to FIG. 1,

(4) FIG. 3 is a perspective view of an anti-tilt device,

(5) FIG. 4 is a front view of the anti-tilt device according to FIG. 3,

(6) FIG. 5 is a top view of the anti-tilt device according to FIG. 3,

(7) 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,

(8) FIG. 7 is a perspective bottom view of the apparatus according to FIG. 6,

(9) FIG. 8a is a front view of a proposed apparatus with an anti-tilt device arranged thereon,

(10) FIG. 8b is a top view of the apparatus according to FIG. 8a,

(11) FIG. 8c is a side view of the apparatus according to FIG. 8b,

(12) FIG. 8d is a sectional view along section line A-A in FIG. 8b,

(13) FIG. 8e is a perspective sectional view along section line A-A in FIG. 8b,

(14) 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,

(15) FIG. 10 is a sectional view of the pile end according to FIG. 9,

(16) 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

(17) FIG. 12 is a sectional view of the pile end according to FIG. 11.

DETAILED DESCRIPTION OF THE INVENTION

(18) 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).

(19) 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.

(20) 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 (particularly as one piece) with the pressure distribution plate 3.

(21) 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 (particularly as one piece) with the support block 11 and with the pressure distribution plate 3.

(22) 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.

(23) 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.

(24) 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).

(25) 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.

(26) 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.

(27) The collar sections 13 in the form of circular arcs are, in the example shown, arranged opposite the support structure 9 on the contact surface 5, namely in such a way that multiple apparatuses 1 can be conveniently stacked on top of one another. In particular, 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.

(28) 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 (particularly, in one piece) 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.

(29) 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.

(30) 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.

(31) 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 (i.e., angled toward a central longitudinal axis of the anti-tilt device).

(32) 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).

(33) 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 (i.e., angled toward a central axis of the central opening 27). As a result, the operation of guiding the clamp elements 25 into the through hole 16 of the apparatus 1 is facilitated.

(34) 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).

(35) 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 lower 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.

(36) 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.

(37) 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.

(38) 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.

(39) 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.

(40) The fact that the pressure distribution plate 3 is formed integral (more particularly, in one piece) 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.

(41) 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.

(42) 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, and 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 (evenly spaced apart) 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).

(43) 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.

(44) 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.

(45) 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.

(46) 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.

(47) 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

(48) 1 Apparatus for ending a tubular pile foundation 2 Tubular pile foundation 3 Pressure distribution plate 4 Plate surface 5 Contact surface 6 Pile end 7 Tubular pile 8 Centering collar 9 Support structure 10 Outer contour 11 Support block 12 Support rib 13 Collar section 14 Stop region 15 Section end 16 Through hole 17 Inside wall 18 Anti-tilt device 19 Central plate 20 First central plate surface 21 Anti-tilt protrusion 22 Protrusion end 23 Central plate outer contour 24 Second central plate surface 25 Clamp element 26 Element end 27 Central opening 28 Locating region K Circular path AL Section longitudinal extent AH Stop height WW Wall angle KW Clamp angle