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
  • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
  • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D15/00—Handling building or like materials for hydraulic engineering or foundations
  • E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
  • E02D15/06—Placing concrete under water
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D15/00—Handling building or like materials for hydraulic engineering or foundations
  • E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
• • 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
  • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
  • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
  • E02D5/40—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds in open water
• • 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
  • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
  • E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
• • 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
  • E02D5/66—Mould-pipes or other moulds
  • E02D5/665—Mould-pipes or other moulds for making piles
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D2250/00—Production methods
  • E02D2250/0061—Production methods for working underwater
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
  • E02D7/28—Placing of hollow pipes or mould pipes by means arranged inside the piles or pipes

Definitions

• the invention relates to a method for forming a foundation pile in the ground, in particular in a body of water, in which a borehole is created in the ground, a pile tube is gripped by means of a handling device and inserted into the borehole, and a hardenable medium is introduced into an annular space between a wall of the borehole and an outer circumference of the pile tube, which hardens to form the foundation pile.
• JP S50-42614 A discloses a method having the features of the preamble of claim 1.
• a method and an arrangement for producing a foundation pile for a structure in water are disclosed.
• a borehole with a support pipe is first created in the ground.
• the resulting borehole is filled with a liquid, in particular water.
• a pile pipe, for which a simple steel pipe with a tubular base is used, is inserted into the cased borehole created in this way.
• the outer support pipe is then pulled out and the annular space between the inserted pile pipe standing on the bottom of the borehole and the surrounding borehole wall is filled with a hardening medium.
• the surrounding water can remain within the pile pipe.
• the load-bearing capacity of the foundation pile created in this way is determined by the outer surface area of the inserted pile pipe in relation to the surrounding soil with the hardened medium in the surrounding annular space.
• the interior which is filled only with water, can be used, if necessary, for the installation of measuring or testing equipment.
• a device for handling and inserting a pile tube into a borehole is known.
• the device is designed to be attached to a crane's suspension cable. Gripping elements can be used to grip an annular edge of the pile tube in a force-locking manner. Overall, the device is designed so that the pile tube can be pivoted from a horizontal storage position to a vertical deployment position.
• This document describes an arrangement and method for creating an underwater foundation using an underwater drilling rig.
• the underwater drilling rig can be placed on a body of water.
• a foundation bore is created using tubular elements.
• the tubular elements can also serve to anchor the drilling device underwater.
• the outer annular space between the outer surface of the pile tube and the surrounding borehole wall is filled.
• one or more supply hoses are introduced into the annular space, through which a hardenable medium, such as mortar or a cement suspension, is then introduced into the annular space.
• the hardenable medium should be introduced in such a way that the annular space is filled from below, so that any liquid, especially water, present in the annular space is displaced from bottom to top by the hardenable medium.
• the hose is usually inserted into the annular space manually from outside the borehole.
• the problem arises that a feed hose can get caught in a central section of the borehole and thus not reach the bottom of the borehole. This cannot usually be detected from outside the borehole.
• the hardening suspension is fed into such an incorrectly inserted feed hose, liquid can remain in the annular space below the feed hose and be trapped by the hardening suspension above. In this case, a pile tube would not be connected to the surrounding soil over its entire length after the suspension has hardened. This reduces the load-bearing capacity of a correspondingly formed foundation element, meaning that a reliable foundation can no longer be guaranteed.
• Reworking the foundation element may be necessary, which can be very time-consuming and costly. In some cases, it may even be necessary to rebuild the foundation element.
• a supply line for a hardenable suspension within the pile tube.
• the at least one supply line can then convey the hardenable medium within the pile tube to the lower region of the pile tube and, via corresponding passages, into the annular space outside the pile tube.
• a corresponding supply line for the hardenable suspension must be arranged after the pile tube has been inserted, either up to the passage into the annular space within the pile tube or to an upper connection on the pile tube. Creating such a connection is time-consuming and labor-intensive and also carries the risk of errors.
• the invention is based on the object of specifying a method with which a foundation pile can be produced in the ground efficiently and reliably.
• the method according to the invention is characterized in that the hardenable medium is introduced into the bore via the handling device.
• a basic idea of the invention is to use the handling device not only for gripping and inserting the pile tube into the borehole, but also for introducing the hardenable medium into the borehole.
• the handling device is not detached from the pile tube after the pile tube has been inserted into the borehole, but can remain in a defined initial position on the pile tube, which was assumed outside the borehole when the handling device gripped the pile tube. Due to the thus predetermined relative position between the pile tube and the handling device, a reliable supply of the hardenable medium can be achieved via the handling device.
• a preferred embodiment of the invention consists in introducing the hardenable medium into the borehole while the pile tube is held by the handling device.
• the handling device can grip the pile tube in a storage position, in particular in a horizontal position, and thus preferably connect it force-fittingly.
• a defined relative position between the pile tube and the handling device can be established. In this initial position, the hardenable medium can then be supplied to the pile tube after the pile tube has been inserted into the borehole.
• the hardenable medium is conveyed by means of at least one conveying line through the handling device to at least one feed opening on the pile tube, wherein the hardenable medium is conveyed through the pipe wall of the pile tube via at least one line and exits into the annular space via at least one outlet opening on the outer circumference of the pile tube.
• One or more conveying lines for supplying the hardenable medium, in particular a mortar or a cement suspension, from a depot, preferably with a pumping device, to the pile tube are arranged on the handling device.
• the at least one conveying line can be permanently attached to the handling device or can be subsequently attached after the pile tube has been gripped.
• the hardenable medium is transferred via at least one feed opening on the pile tube, wherein it is conveyed from the feed opening via one or more lines, which can also be referred to as pile lines, to the outer circumference of the pile tube in a lower region.
• lines which can also be referred to as pile lines
• a single conveyor line is provided on the handling device and also a single line on the pile tube for supplying the hardenable medium.
• at least two conveyor lines and/or lines are provided, which are connected by means of at least one
• the valve device can be connected in such a way that they are connected in parallel to form a double feed or in series for flushing operation. If at least two lines are provided, the hardenable medium can be fed in more quickly.
• a valve device can be provided in such a way that it can interconnect the two delivery lines on the handling device and/or the two lines on the pile tube in such a way that they are connected in series.
• a flushing liquid can be fed in via a first delivery line or line and discharged via the second delivery line or second line.
• This allows the delivery lines or lines to be flushed and thus protected from blockage by hardened medium.
• This allows the handling device with the delivery lines and/or the pile tube with the lines to be used not just for one, but also for multiple feeds of hardenable suspension.
• At least one outlet opening is located in a lower region of the pile tube, and the hardenable medium fills the annular space from bottom to top.
• several outlet openings can also be arranged in a lower region of the pile tube.
• Outlet openings can also be arranged in a targeted manner in an overlying region of the pile tube.
• an undesired inflow of the hardenable medium into the interior of the pile tube can be prevented or significantly restricted by generating an overpressure at least in a lower section of the pile tube, which counteracts the entry of the hardenable medium from the annular space into the interior of the pile tube.
• the overpressure can, in principle, be generated in any suitable manner.
• a bulkhead plate is arranged therein, which separates the lower section from an upper section located thereabove.
• the resulting sealing of the lower section results in fluid being trapped within the lower section and no longer being displaced upwards.
• a preferred method variant involves opening at least one through-hole in the bulkhead plate to insert the pile tube into a fluid-filled borehole. This ensures that air or fluid is not trapped in the lower section when the pile tube is inserted, but can flow freely upwards through the bulkhead plate. Only after the final position has been reached, and in particular when the pile tube has been placed on the bottom of the borehole, is the at least one through-hole in the bulkhead plate closed, so that the lower section is pressure-tightly sealed. In this state, the bulkhead plate performs the advantageous function described above of preventing the unwanted inflow of hardening medium into the interior of the pile.
• the at least one through-opening is advantageous for the at least one through-opening to be closed after the pile tube has been placed on the bottom of the borehole and before the hardening medium is introduced. This measure is particularly useful when the foundation pile is installed underwater on a body of water. Opening the bulkhead plate through the through-opening also enables the pile tube to be lowered quickly into the body of water and into the borehole.
• a further improvement in the production of a foundation pile results according to an embodiment of the invention in that for inserting the pile tube into the bore, the handling device is coupled to a lifting device and that after the introduction of the hardenable medium, the lifting device is released from the handling device and the handling device remains on the pile tube as a load, at least until the medium has hardened.
• a lifting device can be used, in particular, as a support rope or a support rod on a crane.
• the handling device is connected to the support rope or support rod via a detachable connecting device, such as a crane hook.
• the lifting gear can be detached from the handling device, while the handling device remains attached to the pile tube.
• the handling device can thus serve as an additional load to fix the pile tube in position, at least until the hardening medium has sufficiently hardened and the pile tube is secured in position.
• a preferred development consists in that, after the medium has hardened, the handling device is detached from the pile tube and retrieved.
• the hoist with the detachable connection device can be used again on a support rope or a support rod to retrieve the handling device.
• the handling device can have a power-driven or mechanical clamping device, in particular for a force-locking connection to the pile tube. This connection can be released again to retrieve the handling device.
• a foundation pile can be installed in the ground at any desired and suitable location.
• the method can be carried out on land, with the pile tube being inserted into a borehole filled with liquid, in particular water.
• the foundation pile it is particularly advantageous for the foundation pile to be installed underwater in the bed of a body of water.
• the body of water can, in particular, be a river, a lake, or the sea.
• the process can be carried out from a shore using a suitable device.
• the handling device it is expedient for the handling device to be operated from a watercraft.
• the watercraft can, in particular, be a ship or a pontoon.
• the handling device is connected to at least one supply line via a detachable connecting device.
• the supply line also referred to as an umbilical, can be used to supply the curable medium and energy, in particular electrical, hydraulic, and/or pneumatic energy, as well as data transfer via corresponding data lines.
• the supply line can accordingly comprise a bundle of different lines and/or hoses.
• a pile tube 10 with a tubular base body 12 is provided.
• a bulkhead plate 20 is arranged in an inner region 13 of the tubular base body 12, directed transversely to the longitudinal axis of the tubular base body 12.
• This bulkhead plate 20 divides the inner region 13 into a lower section 14 and an upper section 15, separating them from each other.
• An annular sealing element 19 can be arranged on a lower edge of the tubular base body 12, with which the pile tube 10 can be placed on the bottom of a borehole in a manner that seals as tightly as possible.
• the bulkhead plate 20 has two schematically indicated through-openings 22, which can be selectively opened or closed by means of a likewise schematically indicated closure device 24.
• a feed device 30 is arranged with two schematically indicated feed openings 32, each with an insertion funnel 34, as will be described in more detail below in connection with Fig. 3 described.
• the feed openings 32 with the feed funnels 34 serve to supply a hardenable medium, in particular mortar or cement suspension, wherein the hardenable medium can be guided below the bulkhead plate 20 via lines 26 to a lower end region of the tubular base body 12.
• the lines 26 extend through a pipe wall 16 of the base body 12 and each open at the outer circumference 17 of the base body 12 in an outlet opening 28.
• hardenable medium can be guided via an inner region 13 of the pile tube 10 to a lower end region and exit via the outlet openings 28 to the outside of the pile tube 10, as will be described in more detail below in connection with Fig. 2 is explained.
• Fig. 2 1 shows a schematic, not to scale, lower end region of a pile tube 10 according to the invention, which is inserted into a borehole 4 in the ground 1. Only the lower region of the borehole 4 is shown, whereby the borehole 4 can have a depth of several meters, typically between 5 m and 30 m.
• the borehole 4 is filled with a liquid, in particular water or another supporting liquid, for support, so that the borehole 4 does not collapse even at greater borehole depths.
• a support tube can also be provided at least in some areas.
• the pile tube 10 with a bulkhead plate 20 can be easily inserted into a borehole 4 filled with liquid in this way if the through-openings 22 on the bulkhead plate 20 are opened by the closure devices 24.
• the through-openings 22 can be closed again with the closure devices 24.
• a hardenable medium can now be introduced into the borehole 4 via the lines 26, whereby the A hardenable medium is supplied within the pile tube 10 in the lower region via the lines 26 and passes through the pipe wall 16 at the lower end region and can exit via the outlet opening 28 into an annular space 6.
• the annular space 6 is formed between an outer circumference 17 of the tubular base body 12 and a substantially cylindrical wall 8 of the borehole 4. Due to its higher density compared to the liquid in the borehole 4, the hardenable medium can fill the annular space 6 from bottom to top. Liquid is displaced upwards out of the annular space 6 by the hardenable medium.
• the provided bulkhead plate 20 seals a lower section 14 of the interior 13 of the pile tube 10 upwards when the through-holes 22 are closed.
• the liquid in the lower section 14 of the pile tube 10 cannot be displaced upwards, so that no or hardly any hardenable medium can penetrate into the interior 13 of the pile tube 10. This allows the interior 13 to be reliably kept clear, and hardenable medium or suspension can be saved.
• the feeding device 30 of the pile tube 10 is Fig. 1 shown in more detail.
• the feed device 30 can have a cup-shaped receptacle 31, which is mounted in a central region of the bulkhead plate 20.
• the feed openings 32 for the downwardly leading lines 26 are formed in the cup-shaped receptacle 31.
• the feed openings 32 have inlet funnels 34 at their upper region.
• the feed openings 32 can also be formed with check valves 36 (shown only schematically), which prevent an undesired backflow of the curable medium from the lines 26 in the example shown.
• a handling device 50 for supplying the curable medium, a handling device 50 according to the invention can be used Fig. 4
• the handling device 50 has a base body 52 with a cover plate 54, on which an attachment element 58 is arranged for placing or arranging the handling device 50 on or at a pile tube 10.
• the handling device 50 can be releasably attached to an inner side of the pile tube 10 with at least one clamping or gripping element 57.
• the gripping elements 57 are arranged along the circumference of the approximately tubular or barrel-shaped base body 52.
• a pile tube 10 can be picked up from a pile tube storage facility on the ground surface or from a watercraft.
• the pile tube 10 can be positioned in any desired position during picking, for example, horizontally or vertically.
• the handling device 50 can be connected to a lifting device, in particular a crane, via a holding element 55 at the upper end region of the base body 52.
• a pile tube 10 can be inserted from a storage position into a borehole 4 in the ground 1 via the handling device 50.
• the handling device 50 is provided with a feed device 60, which is only schematically indicated and which, in the illustrated embodiment, has conveyor lines 64 which extend from an inlet device 62 at the upper end of the base body 52 to a lower outlet device 66.
• the outlet device 66 is designed to be connected to a pile tube 10 via the insertion funnels 34 of the feed device 30 according to Fig. 3 to engage the supply of a hardenable medium.
• a corresponding coupling unit can be provided on the handling device 50 to ensure precise positioning and positional security in cooperation with the coupling element 23 on the feed device 30 of the pile tube 10.
• a supply line 80 which can also be referred to as an umbilical, can supply curable medium, energy, and/or data via a detachable connecting device 70, whereby the curable medium is transferred to the inlet device 62 at the upper end region of the base body 52.
• a single supply line or separate lines can be provided.
• the connecting line 80 and/or the lifting device can be released from the holding element 55, wherein the handling device 50 can remain as an additional load on the pile tube 10, at least until the hardenable medium is used to form the foundation element has hardened in the soil 1.
• the handling device 50 can then be detached from the pile tube 10 and retrieved.

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• Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Mining & Mineral Resources (AREA)
• Paleontology (AREA)
• Civil Engineering (AREA)
• Piles And Underground Anchors (AREA)
• Underground Or Underwater Handling Of Building Materials (AREA)
• Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Priority Applications (6)

Applications Claiming Priority (1)

Publications (3)

Family

ID=83360952

Family Applications (1)

Country Status (6)

Family Cites Families (6)

• 2022
  • 2022-09-16 EP EP22196156.8A patent/EP4339376B1/de active Active
• 2023
  • 2023-07-13 JP JP2025505877A patent/JP2025531655A/ja active Pending
  • 2023-07-13 KR KR1020257005655A patent/KR20250069853A/ko active Pending
  • 2023-07-13 US US18/992,068 patent/US20260015812A1/en active Pending
  • 2023-07-13 WO PCT/EP2023/069445 patent/WO2024056237A1/de not_active Ceased
  • 2023-07-13 CN CN202380048041.5A patent/CN119487264A/zh active Pending

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