WO2022200096A1 - Baumaschine, verdrängerrohr und verfahren zum erstellen einer füllgutsäule im boden - Google Patents
Baumaschine, verdrängerrohr und verfahren zum erstellen einer füllgutsäule im boden Download PDFInfo
- Publication number
- WO2022200096A1 WO2022200096A1 PCT/EP2022/056484 EP2022056484W WO2022200096A1 WO 2022200096 A1 WO2022200096 A1 WO 2022200096A1 EP 2022056484 W EP2022056484 W EP 2022056484W WO 2022200096 A1 WO2022200096 A1 WO 2022200096A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- closure flap
- displacement tube
- closure
- displacement
- filling material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
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
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
-
- 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
-
- 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
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1685—Shapes cylindrical
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Definitions
- the invention relates to a construction machine for inserting a displacement pipe into the ground, with the displacement pipe having a basic pipe body and, at its lower end, a closure device which comprises at least one closure flap, which is positioned between a closed position in which the displacement pipe slides downwards through the at least a closing flap is closed, and an opening position can be adjusted in which filling material can escape from the displacement tube into the ground to form a filling material column, wherein the construction machine has a feed drive for inserting and retracting the displacement tube in relation to the ground, according to the preamble of claim 1.
- the invention further relates to a displacement tube for creating a filling material column in the ground, wherein the displacement tube can be inserted into the ground by means of a construction machine according to the invention and the displacement tube has a tube base body and at its lower end a closure device which comprises at least one closure flap which can be switched between a closed position, in which the displacement tube is closed at the bottom by the at least one closure flap, and an open position can be adjusted into which filling material can escape from the displacement tube into the bottom to form a filling material column, according to the preamble of claim 8.
- the invention also relates to a method for placing a column of filling material in the ground, in which a displacement tube with a closure device having at least one closure flap is inserted into the base, which is in a closed position when it is inserted, and when a final depth is reached, the at least a closure flap is swung from the closed position into an open position, with filling material being introduced into the base through an outlet opening to form the filling material column, according to the preamble of claim 12.
- EP 3 192927 B1 or DE 103 10727 B4 disclose a displacement tube and a method for creating a filling material column in the ground.
- the displacement tube is driven into the ground in soft, displaceable soil, for example by means of a vibrator on a construction machine.
- a vibrator for example, concrete, lime, gravel, sand, gravel or dry mortar can be placed in the ground via the displacement pipe.
- vertical filling material columns are produced, through which the subsoil is stabilized and strengthened. These columns usually extend to a load-bearing layer of soil that can absorb higher vertical forces.
- the filling material columns can be used, for example, for the foundation of a building.
- the known displacement tubes have on their underside a closure device with usually two closure flaps, which form a penetrating tip in their closure position.
- the closure flaps are freely pivoted on a tubular body. They are usually articulated in such a way that the closure flaps are close to their closed position in an unloaded state. Placing the displacement tube on the ground and further pushing the displacement tube into the ground usually causes the closure flaps to close completely and the displacement tube in the closed position is thus introduced into the ground to a desired final depth.
- filling material can then be poured into the displacement tube from above.
- the closing flaps are pressed open by the filling material present, so that the filling material can escape from the displacement tube into the bottom to form the filling material column.
- the invention is based on the object of specifying a construction machine, a displacement tube and a method with which a column of filling material can be produced in the ground with a displacement tube in a particularly efficient manner.
- the invention is characterized in that an actuating unit with at least one pressing element is arranged on the construction machine, by means of which the at least one closure flap can be adjusted into its closed position before contacting the ground and can be held in this position, at least until the closed closure flap is in the ground penetrates.
- a basic idea of the invention lies in not leaving the closure of the closure flap solely to the reaction forces of the soil when the displacement tube penetrates into it. Rather, the at least one closure flap is closed by a separate actuating unit with a pressing element before it penetrates the ground. In this case, on an outside of the closure flap Pressing element is pressed and so the closure flaps are reliably adjusted into the closed position and held there until the further reaction forces of the soil when pressing the displacement tube into the soil press the usually conical closure flap into its closed position.
- the invention thus ensures that even in an initial phase, no or at least no significant amount of soil material can penetrate into the displacement tube. In this way, contamination of the filling material by soil material that has penetrated can be avoided. In this way, high-quality filling material columns can be reliably created in the soil.
- a preferred embodiment of the invention is that the feed drive can be moved vertically along a mast with the displacement tube and that the actuating unit is arranged at a lower end of the mast.
- the front thrust drive can not only have a drive for linear displacement of the displacement tube.
- the feed drive can in particular have a vibrator or a ram, with which the insertion or pressing of the displacement pipe into the ground is facilitated.
- the displacement tube preferably has a downwardly tapering tip for soil penetration.
- the actuating unit is arranged at a distance from the displacement tube, preferably at the lower end of the mast on the construction machine, so that the pressing element can be pushed against the closure flap from the outside.
- the actuating unit can be mounted in an adjustable manner, preferably in a height-adjustable manner.
- the actuating unit can be designed in any suitable manner in order to bring about a reliable closing of the at least one closing flap before it is introduced into the ground by means of a power operation.
- the at least one drive element has an actuating arm which can be adjusted, in particular pivoted, between a pressing position for closing the closure flap and a retracted position, in which the pressing element is separated from the displacement tube and the at least one closure flap is spaced.
- the actuating arm can be adjusted between the drive position and the retracted position by means of a hydraulic cylinder or another drive.
- the pressing element can be designed in any way so that it can come into contact with the closure flap at times. The pressing element can hold the closure flap in its closed position until the closure flap is pressed further into its closed position and held by the soil on the ground.
- a particularly preferred variant consists in that a pressure plate is attached to a free end of the actuating arm.
- a pressing force can be transmitted over a larger area and/or a reliable contact with the closure flap can be ensured over a larger area.
- the displacement tube has two closure flaps and that the actuating unit has two pressing elements, which are each associated with a closure flap.
- the two closure flaps are approximately half-shell-shaped and curved, so that in their closed position they form a lower displacement tip of the displacement tube.
- closure flaps are opposite gela siege on the tubular body. They are actuated accordingly by two opposing pressing elements of the actuating unit, so that transverse forces cancel each other out and do not stress the displacement tube as a whole.
- the invention can also have three, four or more closure flaps, with each individual closure flap or groups of closure flaps being able to be actuated with an associated pressure element.
- a further advantageous embodiment of the invention is that the pressure plates of the two pressure elements are arcuate and are designed to apply and guide the displacement tube as it penetrates further into the ground.
- the pressing elements can thus fulfill a double function. On the one hand, as described above, they can press and hold the closure flaps in their closed position until the displacement tube penetrates the ground. Then they can Pressing elements are withdrawn from the displacement tube again and, after the displacement tube has penetrated further into the ground, are placed back against the displacement tube in an area above the pivot joints of the closure flaps on this.
- the arcuate or approximately half-cylinder-shaped design of the pressure plates allows the displacement tube to be fitted tightly and guided on its outside. In this way, the displacement tube can be additionally guided and thus introduced into the ground in a particularly precise position and in particular with a high degree of verticality.
- the operating unit can be manually operated and controlled by an operator.
- a control is provided by which the at least one pressing element can be controlled against the at least one closure flap for closing the displacement tube before the at least one closure flap penetrates the ground.
- the control can perform the adjustment of the pressing element au tomatically according to a predetermined program.
- delivery to the closure flaps can take place depending on the vertical position of the displacement tube. If the displacement tube is moved further down, the pressing elements can then be automatically returned to their retracted position, in which the pressing elements are spaced apart from the closure flaps, and/or can be advanced to the tubular body for guiding.
- Appropriate sensors for detecting the position of the displacement tube and the closing flaps as well as the pressing elements can be provided on the construction machine, with the sensors being connected to the controller.
- the invention also includes a displacement tube for creating a column of filling material in the ground, the displacement tube being characterized in that a radially protruding actuating section is formed on an outside of the at least one closure flap and can be brought into engagement with a pressing element of an actuating unit of the construction machine , wherein the closure flap can be pressed from the open position into the closed position by contact with the actuating section.
- the actuating unit represents in particular a contact element which can be brought into engagement with the pressing element of the construction machine described above.
- the displacement tube can be used in particular together with the construction machine described above.
- an advantageous embodiment of the displacement tube is that the at least one closure flap is pivoted on an outside of the tubular body with a swivel joint and that the actuating section on the closure flap is designed in such a way that the actuating section can be moved both in the open position and in the closed position protrudes radially outwards with respect to the swivel joint.
- This arrangement ensures that not only in the open position, but also when the closing flaps are pressed radially inwards, the pressing element is always reliably in contact with the actuating section of the closing flap.
- the actuating section continues to protrude radially outwards in relation to the swivel joint.
- the actuating section can be arranged close to a pivot joint of the closure flap, preferably below the pivot axis.
- the closure device has two closure flaps which are mounted on the tube body.
- the closure flaps are pivoted at opposite positions on the pipe body. In particular, these can each form half of the displacement tip when the two closure flaps are in their closed position.
- a feed device for feeding in the filling material is arranged at an upper end of the tubular body.
- the feed device can in particular comprise a feed funnel.
- concrete, lime, gravel, sand, crushed rock or dry material can be provided as filling material to form the filling material column.
- the filling material is introduced into the displacement tube when this has been introduced into the ground to the desired final depth.
- the filling material can also consist of a geotextile or be surrounded by a foil, especially if sand is introduced as filling material.
- the geotextile or the foil can be shaped like a sack and can be arranged in the displacement pipe.
- the displacement tube When the displacement tube is withdrawn from the ground, it can perform an alternating upward/downward movement in order to achieve increased compaction of the filling material introduced.
- the method according to the invention is characterized in that an actuating unit is used to press at least one pressing element against the at least one closure flap before the closure flap makes contact with the ground in a displacing manner, with the at least one closure flap being adjusted from the open position to the closed position.
- the method can be carried out with a construction machine which has been described above and specified in the claims.
- a particularly preferred method variant of the method according to the invention is that the at least one pressing element bears against the at least one closing flap until it penetrates the ground and that the at least one pressing element is then pulled back from the closing flap. If the displacement tube is inserted further into the ground to form a hole, the at least one pressing element can be placed against the tube base body to guide it further.
- the displacement tube is pulled back out of the ground and that the at least one closure flap is moved into the open position when the displacement tube is retracted. This is caused in particular by the internal pressure of the filling material in the displacement tube.
- FIG. 1 shows a side view of a construction machine according to the invention
- FIG. 3 shows an enlarged detailed view of the actuating unit in the open position on the construction machine in a front view
- FIG. 4 shows an illustration of the actuating unit from FIG. 3 in a view from above;
- FIG. 5 shows a detailed view of the actuating unit from FIG. 3 in the closed position in a front view
- FIG. 6 shows a view from above corresponding to FIG. 4 of the actuating unit in the closed position according to FIG.
- FIG. 10 A construction machine 10 according to the invention in an overall representation is shown in FIG.
- the construction machine 10 has a carrier device 12 with an undercarriage 13 designed as a crawler chassis.
- an upper carriage 14 On the undercarriage 13, an upper carriage 14 is mounted with an operator's cab 16 so as to be pivotable about a ver vertical axis of rotation.
- a controller for the operation of the construction machine 10 can be arranged in the operating cabin 16 .
- a substantially vertical mast 20 is adjustably held on the superstructure 14 via an adjustment mechanism 18 .
- the mast 20 is designed as a so-called telescopic leader.
- a working carriage 32 for forming a feed drive 30 is mounted along a linear guide.
- a vibrator 34 is brought to, with which targeted vibrations by means of rotating unbalance units he can be generated.
- Feed forces and vibrations of the vibrator 34 can be transmitted from the feed drive 30 to the displacement tube 50 via the clamping device 36 .
- the displacer tube 50 for forming a hole in the bottom 5 with the displacement of soil Mate rial can be introduced into this.
- a filling material can be introduced into the displacement pipe 50 and thus into the base 5 to form a filling material column via a schematically indicated feed device 54 on the upper side of the displacement tube 50 .
- a displacement tip 58 which is formed by a closure device 60 with two pivotable closure flaps 62 .
- the closure flaps 62 of the closure device 60 can be pressed against one another via an actuating unit 40 at the lower end of the mast 20 and thus moved into a closed position for forming the displacement tip 58 and held.
- An actuating unit 40 is arranged at the lower end of the mast 20 .
- the mode of operation of the actuating unit 40 according to the invention is explained in more detail in connection with FIGS.
- the actuation unit 40 has two pressing elements 42 which are designed essentially symmetrically to a vertical center plane of the construction machine 10 with the mast 20 .
- the two on pressing elements 42 of the actuating unit 40 are opposite to each other, with only one pressing element 42 of the otherwise functionally identical formed pressing elements 42 being executed.
- Each pressing element 42 has an approximately horizontally directed actuating arm 44 which is mounted on a lower end of the mast 20 such that it can pivot about a vertical axis.
- the mast 20 can be supported directly on the ground 5 via a mast foot 22 .
- a curved pressure plate 46 is provided, which section for pressing against a radially projecting actuation 44 .
- a closure flap 62 is formed at the free end of the actuating arm 44 .
- two opposing closing flaps 62 are each mounted via a swivel joint 64 at the lower end of the displacement tube 50 to form a penetration tip 58 .
- a pointed contact edge 53 is formed against which pressed the closure flaps 62 to form the displacement tip 58 who can.
- FIG. 3 shows the closure device 60 with the two closure flaps 62 in an open position, with the pressing elements 42 being in a retracted position at a distance from the closure flaps 62, as can be clearly seen from the top view of FIG.
- the top view of FIG. 4 shows the upper side of the vibrator 34, so that the displacement tube 50 in FIG. 4 is covered and cannot be seen.
- the actuating arms 44 are pivoted toward the displacement tube 52, as is clearly shown in FIGS.
- the shell-shaped pressure plates 46 press on the respective actuating sections 66 on the closure flaps 62.
- the closure flaps 62 are pivoted inwards about the respective horizontally directed swivel joint 64 from the open position into a closed position and pressed against the arrow-shaped contact edge 53 on the tubular body 52.
- the closed penetration tip 58 is formed at the lower end of the displacement tube 50 in the closed position of the closure flaps 52 .
- filling material can be introduced into the base 5 via the hollow displacement tube 50 , with the displacement tube 50 being pulled back out of the base 5 at the same time via the feed drive 30 .
- the closing flaps 62 are pressed into their open position, which is shown in FIG. In the process, an outlet opening 46 at the lower end of the displacement tube 50 is released.
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/263,484 US12392102B2 (en) | 2021-03-24 | 2022-03-14 | Construction machine, displacement tube and method for creating a filling material column in the ground |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21164548.6A EP4063565B1 (de) | 2021-03-24 | 2021-03-24 | Baumaschine, verdrängerrohr und verfahren zum erstellen einer füllgutsäule im boden |
| EP21164548.6 | 2021-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022200096A1 true WO2022200096A1 (de) | 2022-09-29 |
Family
ID=75203173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2022/056484 Ceased WO2022200096A1 (de) | 2021-03-24 | 2022-03-14 | Baumaschine, verdrängerrohr und verfahren zum erstellen einer füllgutsäule im boden |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US12392102B2 (de) |
| EP (1) | EP4063565B1 (de) |
| WO (1) | WO2022200096A1 (de) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29611427U1 (de) * | 1996-07-01 | 1996-09-05 | Josef Möbius Bau-Gesellschaft (GmbH & Co.), 22549 Hamburg | Rohrförmiger Verdrängungskörper |
| GB2311083A (en) * | 1996-03-15 | 1997-09-17 | Dredging Int | Inserting a column of stabilising material into the ground |
| DE10310727B4 (de) | 2003-03-12 | 2007-09-13 | Bauer Spezialtiefbau Gmbh | Füllrohr |
| EP3112535A1 (de) * | 2015-07-03 | 2017-01-04 | Bauer Spezialtiefbau GmbH | Füllrohr zum erstellen einer füllgutsäule im boden sowie vorrichtung und verfahren hierzu |
| EP3192927B1 (de) | 2016-01-13 | 2019-04-24 | BAUER Spezialtiefbau GmbH | Vorrichtung und verfahren zum erstellen einer füllgutsäule |
| DE202020105037U1 (de) | 2020-09-01 | 2020-09-18 | Bauer Spezialtiefbau Gmbh | Füllrohr zum Erstellen einer Füllgutsäule im Boden |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2005298C2 (nl) * | 2010-09-01 | 2012-03-05 | Jan Vos | Samenstel van buis en boorkop en werkwijze voor het vormen van een lichaam van materiaal in een bodem. |
-
2021
- 2021-03-24 EP EP21164548.6A patent/EP4063565B1/de active Active
-
2022
- 2022-03-14 US US18/263,484 patent/US12392102B2/en active Active
- 2022-03-14 WO PCT/EP2022/056484 patent/WO2022200096A1/de not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2311083A (en) * | 1996-03-15 | 1997-09-17 | Dredging Int | Inserting a column of stabilising material into the ground |
| DE29611427U1 (de) * | 1996-07-01 | 1996-09-05 | Josef Möbius Bau-Gesellschaft (GmbH & Co.), 22549 Hamburg | Rohrförmiger Verdrängungskörper |
| DE10310727B4 (de) | 2003-03-12 | 2007-09-13 | Bauer Spezialtiefbau Gmbh | Füllrohr |
| EP3112535A1 (de) * | 2015-07-03 | 2017-01-04 | Bauer Spezialtiefbau GmbH | Füllrohr zum erstellen einer füllgutsäule im boden sowie vorrichtung und verfahren hierzu |
| EP3192927B1 (de) | 2016-01-13 | 2019-04-24 | BAUER Spezialtiefbau GmbH | Vorrichtung und verfahren zum erstellen einer füllgutsäule |
| DE202020105037U1 (de) | 2020-09-01 | 2020-09-18 | Bauer Spezialtiefbau Gmbh | Füllrohr zum Erstellen einer Füllgutsäule im Boden |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4063565C0 (de) | 2024-08-21 |
| US20240084540A1 (en) | 2024-03-14 |
| US12392102B2 (en) | 2025-08-19 |
| EP4063565B1 (de) | 2024-08-21 |
| EP4063565A1 (de) | 2022-09-28 |
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