EP3628781B1 - Method for making an injection anchor in the soil and automatic pressure device for same - Google Patents

Method for making an injection anchor in the soil and automatic pressure device for same Download PDF

Info

Publication number
EP3628781B1
EP3628781B1 EP18196794.4A EP18196794A EP3628781B1 EP 3628781 B1 EP3628781 B1 EP 3628781B1 EP 18196794 A EP18196794 A EP 18196794A EP 3628781 B1 EP3628781 B1 EP 3628781B1
Authority
EP
European Patent Office
Prior art keywords
post
grouting
medium
injection
automatic
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.)
Active
Application number
EP18196794.4A
Other languages
German (de)
French (fr)
Other versions
EP3628781A1 (en
Inventor
Christian Lorenz
Daniel Brokemper
Sebastian Romer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bauer Spezialtiefbau GmbH
Original Assignee
Bauer Spezialtiefbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bauer Spezialtiefbau GmbH filed Critical Bauer Spezialtiefbau GmbH
Priority to EP18196794.4A priority Critical patent/EP3628781B1/en
Priority to PCT/EP2019/071721 priority patent/WO2020064208A1/en
Priority to US17/275,807 priority patent/US11993910B2/en
Publication of EP3628781A1 publication Critical patent/EP3628781A1/en
Application granted granted Critical
Publication of EP3628781B1 publication Critical patent/EP3628781B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E02D5/808—Ground anchors anchored by using exclusively a bonding material
    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • 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 method for producing an injection anchor in the ground, in which a hole is drilled in the ground, a hardening mass is injected at least in a partial area of the hole by means of an injection member to form an anchor base and after the mass has partially hardened but has not yet fully hardened a post-press medium is introduced into an area of the anchor foot via a post-injection member under pressure, through which the not yet fully hardened anchor foot is broken up, according to the preamble of claim 1.
  • the invention further relates to a post-pressing machine for such a method according to claim 9.
  • the U.S. 2018 066519 A1 discloses a post-pressing machine according to the preamble of claim 9.
  • the EP 0 218 987 A2 discloses a method and a device for setting or pressing tie rods into sheet piling to restore forces occurring underground in the ground.
  • the invention is based on the object of specifying a method for producing an injection anchor in the ground and a device for this, in which there is increased temporal flexibility in the production of injection anchors.
  • the object is achieved on the one hand by a method having the features of claim 1 and on the other hand with an automatic post-pressing machine having the features of claim 9 .
  • Preferred embodiments of the invention are given in the respective dependent claims.
  • the method according to the invention is characterized in that a post-pressing machine is connected to the post-pressing member, by means of which the post-pressing medium is automatically fed into the post-pressing member at a freely definable point in time to break up the not yet fully hardened anchor foot.
  • a basic idea of the invention lies in the fact that a post-injection of an anchor base can be carried out without personnel using a special post-injection machine.
  • the post-pressing machine is connected to the post-pressing member by a line, and the post-pressing medium can be automatically introduced into the post-pressing member to break up the primary anchor base that has not yet hardened. Any time at which the post-pressing medium is introduced into the post-pressing member can be entered into the post-pressing machine.
  • the point in time for post-pressing can also be switched from a remote control center via a preferably wireless data connection or depending on sensors which determine the condition of the primary anchor base, such as strength or residual moisture, etc., the environment or other relevant parameters.
  • post-injection can be carried out independently of the presence of personnel and thus also on weekends, public holidays, mornings or nights.
  • the use of a post-injection machine can now basically be used on construction sites for the production of injection anchors. This leads to improved utilization of the machine park, to an increase in the weekly output for injection anchors to be produced and to a reduction in the construction time. As a result, this leads to considerable cost advantages.
  • a preferred embodiment of the invention consists in that the post-injection medium is a liquid, in particular water, or a gas, in particular compressed air, through which the anchor base is broken open and that a hardenable medium is introduced into the broken anchor base at different times.
  • the post-injection medium is a liquid, in particular water, or a gas, in particular compressed air, through which the anchor base is broken open and that a hardenable medium is introduced into the broken anchor base at different times.
  • the primary anchor foot is first broken up at the specified point in time by a non-hardening medium, in particular water or compressed air.
  • a non-hardening medium in particular water or compressed air.
  • This first step can be carried out by the post-pressing machine, with the storage of water or compressed air, which is formed in particular from the ambient air, being possible without any problems.
  • the second step of post-injection by introducing a hardening medium into the fractured primary anchor foot can either also be carried out by the post-pressing machine, which then has an additional reservoir and optionally an additional pressure device for generating the pressure for the hardenable medium.
  • the second post-pressing step cannot be performed automatically by personnel at a later point in time. After breaking open the primary anchor foot, the broken anchor foot parts can self-harden until the hardening medium is introduced.
  • a hardenable medium is used as the post-injection medium, in particular the hardening mass for forming the anchor foot.
  • the post-injection is carried out in a single step, in which case the post-injection medium can in particular be a cement suspension or another hardenable suspension.
  • the invention includes all of these basic method variants for producing an injection anchor, but with the step of automatic post-injection.
  • the injection member for injecting the hardenable mass and a separate post-injection member for injecting the post-injection medium remain in the bore.
  • the injection member and the post-injection member can be introduced into the bore together with the tension member.
  • the injection member could also be used as a post-injection member for the post-injection medium and/or another hardenable medium to form the secondary anchor base.
  • the injection member can be a separate element which is introduced into the borehole with or after the drilling tool has been removed.
  • the injection member is designed as a drilling tool with which the borehole is created in the ground.
  • the injection member can simultaneously or alternatively be part of the traction member, so that an overall simple workflow is achieved.
  • the post-injection member has at least one outlet opening through which the post-injection medium is introduced into the bore.
  • the tube-like or tube-like post-grouting member can have a section with a plurality of openings or with a reduced material thickness, which tears open in a defined manner when the post-pressing medium is introduced at a predetermined pressure.
  • the post-injection medium can escape into the surrounding area and break up the primary anchor foot or introduce a hardenable medium to form the secondary anchor foot.
  • a suitable pressure is set.
  • a pressure of at least 10 bar, preferably between 15 bar and 40 bar is set for introducing the post-injection medium. In special cases, lower or higher pressures can also be provided.
  • the automatic post-pressing machine is provided with a controller in which a time for carrying out the automatic post-pressing is entered.
  • the controller can in particular have a timer, with which in particular a period of time or a defined point in time for carrying out the automatic post-pressing can be entered.
  • the post-pressing machine for introducing the post-pressing medium can then be put into operation in the desired manner via the mechanical or preferably electronic control.
  • control additionally includes an input device for inputting the necessary pressure, the filling quantity to be introduced and/or a limit pressure at which the post-injection process can be stopped.
  • the device according to the invention is designed as a post-pressing machine, which is characterized in that a pressure device is provided, which can be connected by line to the post-pressing member and which is designed to introduce the post-pressing medium under pressure into the post-pressing member, and that a controller is provided in which a Time for the automatic introduction of the Nachverpressmedium is formed in the Nachverpressglied.
  • At least one container is provided for receiving the post-injection medium.
  • the container can also be a pressure container in which the medium, in particular compressed air, is stored under pressure.
  • several, in particular two, containers can also be provided, so that, for example, compressed air is stored in one container and the curable medium is stored in another container.
  • the pressurizing means may be any suitable means for generating pressure, such as a compressed gas accumulator or a compression spring assembly.
  • the pressure device has a pump and/or a compressor. In this way, the necessary pressure for introducing the post-injection medium can be applied.
  • the components of the post-pressing machine are preferably operated electrically.
  • the post-pressing machine can be provided with batteries for power supply or have a connection to an external power source. In principle, other energy sources are also possible for operating the post-pressing machine.
  • a single post-pressing machine can be provided for each individual post-pressing member.
  • the post-pressing machine can be made very compact overall.
  • An alternative and preferred embodiment of the invention can be seen in the fact that the Nachverpressautomat over several Lines are connected to several post-pressing members.
  • a central post-pressing machine can supply several post-pressing members with the post-pressing medium.
  • the control can be designed in such a way that this takes place simultaneously for all or several post-pressing members or that the post-pressing processes are carried out successively on the individual post-pressing members.
  • a drilling tool 20 is used to drill a hole 5 in a floor or an approximately vertical wall area.
  • a hardenable mass 12 can be introduced into the bore 5 via a drill bit 21 in order to form a primary anchor base 16, as illustrated in steps b) and c).
  • the rod-shaped tension member 14 for forming the injection anchor 10 and the rod-shaped injection member 22 can be arranged within the drilling tool 20 so that they can already be introduced into the bore 5 with the drilling tool 20 .
  • the outer drilling tool 20 can be withdrawn from the borehole 5 again, with the free space in the borehole 5 being at least partially filled with the hardenable compound 12, as clearly illustrated in steps c) and d).
  • the drilling tool 20 serves at the same time as an injection member 22 for injecting the hardenable mass 12 to form the primary anchor base 16 and, if necessary, for forming a further area of the injection anchor 10.
  • a tubular post-pressing member 30 with a hollow base body 32 is introduced into the bore 5 with the tension member 14 as long as the hardenable mass 12 is still in a soft, free-flowing state.
  • a post-pressing section 34 is arranged at least in sections on the bottom end area of the base body 32 of the post-pressing member 30 , which post-pressing section covers ejection openings 36 in the tubular base body 32 .
  • a post-pressing machine 40 is connected via a connection 38 and a line 49 to the free end of the post-pressing member 30 protruding from the ground.
  • the post-injection machine 40 has a box-like frame 42 with a controller 44, at least one container 48 for receiving a post-injection medium 26 and a pressure device 50 for generating a desired injection pressure.
  • the controller 44 is provided with a timer 46 with which a point in time can be entered at which the post-pressing machine 40 can automatically introduce post-press medium 26 from the container 48 by means of the pressure device 50 into the post-press member 30 .
  • the post-pressing medium 26 which can in particular be identical to the hardenable compound 12, it can be introduced into the bore 5 at a predeterminable point in time at which the primary anchor base 16 has partially but not yet fully hardened.
  • the one or more post-pressing sections 34 on the post-pressing member 30 can be torn open, so that the outlet openings 36 in the base body 32 of the post-pressing member 30 are released.
  • the flowable post-injection medium 26 can penetrate into the area of the primary anchor foot 16 , break it up and widen it to form an enlarged, approximately pear-shaped secondary anchor foot 18 .
  • a secondary anchor foot 18 with an enlarged diameter is achieved, in which the tension member 14 is firmly integrated, so that relatively high forces can be discharged into the ground via the tension member 14 and the enlarged secondary anchor foot 18 .
  • the tension member 14 can be surrounded by a cylindrical tubular element 15 .
  • the post-pressing machine 40 can be removed again by disconnecting the line 49 at the connection 38 and provided for a further post-pressing process.

Landscapes

  • 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)
  • Piles And Underground Anchors (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Herstellen eines Injektionsankers im Boden, wobei eine Bohrung in dem Boden erstellt wird, mittels eines Injektionsgliedes zumindest in einem Teilbereich der Bohrung eine aushärtende Masse zum Bilden eines Ankerfußes injiziert wird und nach einem teilweisen, noch nicht vollständigen Aushärten der Masse in einem Bereich des Ankerfußes über ein Nachverpressglied unter Druck ein Nachverpressmedium eingebracht wird, durch welches der noch nicht vollständig ausgehärtete Ankerfuß aufgebrochen wird, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a method for producing an injection anchor in the ground, in which a hole is drilled in the ground, a hardening mass is injected at least in a partial area of the hole by means of an injection member to form an anchor base and after the mass has partially hardened but has not yet fully hardened a post-press medium is introduced into an area of the anchor foot via a post-injection member under pressure, through which the not yet fully hardened anchor foot is broken up, according to the preamble of claim 1.

Die Erfindung betrifft weiterhin einen Nachverpressautomaten für ein solches Verfahren nach Anspruch 9.The invention further relates to a post-pressing machine for such a method according to claim 9.

Aus der DE 2 050 292 A ist ein Verfahren zum Herstellen eines Injektionsankers, gemäß dem Oberbegriff des Anspruchs 1, bekannt. Dieser wird auch Verpressanker genannt, mit erweitertem Ankerfuß genannt. Dabei wird zunächst im Boden eine Bohrung erstellt, in welche ein Zugglied für den Anker eingebracht wird. In einem Verankerungsbereich des Zuggliedes wird durch Injizieren von erhärtendem Baustoff ein Ankerfuß im Boden gebildet. Über ein Injektionsrohr, welches zusammen mit dem Zugglied in die Bohrung eingebracht wird, wird vor einem vollständigen Erhärten des Baustoffes für den Ankerfuß durch das Injektionsrohr unter hohem Druck weiterer erhärtender Baustoff in den Verankerungsbereich verpresst. Hierdurch wird der in dem ersten Schritt erstellte und teilweise ausgehärtete primäre Ankerfuß aufgebrochen und kann so insbesondere in radialer Richtung zu einem sekundären Ankerfuß erweitert werden, durch welchen eine stärkere Verankerung des Zuggliedes erreicht werden kann.From the DE 2 050 292 A a method for producing an injection anchor, according to the preamble of claim 1, is known. This is also called a ground anchor with an extended anchor base. First, a hole is drilled in the ground into which a tension member for the anchor is inserted. An anchor foot is formed in the ground in an anchoring area of the tension member by injecting hardening building material. Before the building material for the anchor foot has hardened completely, further hardening building material is injected into the anchorage area through the injection pipe under high pressure via an injection pipe, which is inserted into the borehole together with the tension member. As a result, the primary anchor foot created and partially hardened in the first step is broken up and can thus be expanded in particular in the radial direction to form a secondary anchor foot, through which stronger anchoring of the tension member can be achieved.

Dieses Verfahren wird seit langem mit großem Erfolg angewendet. Für das Aufbrechen des primären Ankerfußes ist es erforderlich, dass die zum Bilden des Ankerfußes vorgesehene Masse teilweise, jedoch noch nicht vollständig ausgehärtet ist. Eine gewisse Festigkeit ist notwendig, damit der Ankerfuß aufreißen kann und sich entsprechende Risse und Teilstücke bilden können. Andererseits darf der Ankerfuß noch nicht vollständig oder weitgehend ausgehärtet sein, da ansonsten der für das Aufbrechen des Ankerfußes notwendige Druck aus wirtschaftlicher Sicht zu hoch wäre oder gar nicht mehr aufgebracht werden könnte. Üblicherweise beträgt die Zeitdauer für das notwendige erste Aushärten des Ankerfußes mehrere Stunden, typischerweise etwa einen Tag.This method has been used with great success for a long time. Breaking open the primary anchor foot requires that the mass intended to form the anchor foot be partially, but not fully, cured. A certain strength is necessary so that the anchor foot can tear open and corresponding cracks and fragments can form. On the other hand, the anchor base must not yet be completely or largely hardened, since otherwise the pressure required to break open the anchor base would be too high from an economic point of view or could no longer be applied at all. Usually, the time required for the first hardening of the anchor base is several hours, typically about a day.

Üblicherweise wird an Baustellen der Ankerfuß an einem ersten Tag hergestellt, während dann das Nachverpressen mit dem Aufreißen des Ankerfußes am Folgetag durchgeführt wird. Dies hat zur Folge, dass während einer Arbeitswoche auf einer Baustelle in der Regel Verpressanker von Montag bis Donnerstag hergestellt werden, wobei das Nachverpressen am Folgetag durchgeführt wird. Da jedoch am Samstag und am Sonntag üblicherweise auf Baustellen nicht gearbeitet wird, werden an einem Freitag keine Injektionsanker mit primären Ankerfüßen mehr erstellt, da ein Durchführen des Nachverpressens erst am folgenden Montag nicht oder kaum mehr möglich wäre, da aufgrund der vorangeschrittenen Aushärtung des Ankerfußes dieser nicht mehr durch ein Nachverpressmedium zuverlässig aufgebrochen werden könnte.The anchor base is usually produced on construction sites on the first day, while the subsequent grouting and tearing open of the anchor base is then carried out on the following day. As a result, during a working week on a construction site, grouted anchors are usually produced from Monday to Thursday, with the subsequent grouting being carried out on the following day. However, since there is usually no work on construction sites on Saturdays and Sundays, injection anchors with primary anchor feet are no longer installed on a Friday, since post-injection would not or hardly be possible until the following Monday, since the advanced hardening of the anchor foot meant that it was no longer possible could no longer be reliably broken up by a post-injection medium.

Faktisch stehen somit bei üblichen Bauvorhaben für das Herstellen eines Injektionsankers mit einem nachzuverpressenden Ankerfuß nur vier Arbeitstage, nämlich Montag bis Donnerstag, zur Verfügung.In practice, therefore, only four working days, namely Monday to Thursday, are available for the production of an injection anchor with an anchor foot to be post-injected in conventional construction projects.

Die US 2018 066519 A1 offenbart einen Nachverpressautomat gemäß dem Oberbegriff des Anspruchs 9.The U.S. 2018 066519 A1 discloses a post-pressing machine according to the preamble of claim 9.

Die EP 0 218 987 A2 offenbart ein Verfahren und eine Vorrichtung zum Setzen bzw. Verpressen von Zugankern in Spundwände zur Rücksicherung von im Untergrund auftretenden Kräften im Erdreich.The EP 0 218 987 A2 discloses a method and a device for setting or pressing tie rods into sheet piling to restore forces occurring underground in the ground.

Die DE 10 2009 029 892 A1 offenbart eine Vorrichtung zum Setzen von Bodenankern zur Rücksicherung von zum Beispiel Steinfangnetzen.The DE 10 2009 029 892 A1 discloses a device for setting ground anchors to secure, for example, stone nets.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Herstellen eines Injektionsankers im Boden und eine Vorrichtung hierfür anzugeben, bei welchen eine erhöhte zeitliche Flexibilität bei der Herstellung von Injektionsanker gegeben ist.The invention is based on the object of specifying a method for producing an injection anchor in the ground and a device for this, in which there is increased temporal flexibility in the production of injection anchors.

Nach der Erfindung wird die Aufgabe zum einen durch ein Verfahren mit den Merkmalen des Anspruchs 1 und zum anderen mit einem Nachverpressautomat mit den Merkmalen des Anspruchs 9 gelöst. Bevorzugte Ausführungsformen der Erfindung sind in den jeweiligen abhängigen Ansprüchen angegeben.According to the invention, the object is achieved on the one hand by a method having the features of claim 1 and on the other hand with an automatic post-pressing machine having the features of claim 9 . Preferred embodiments of the invention are given in the respective dependent claims.

Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass an dem Nachverpressglied ein Nachverpressautomat angeschlossen wird, durch welchen zu einem frei vorgebbaren Zeitpunkt automatisch das Nachverpressmedium zum Aufbrechen des noch nicht vollständig ausgehärteten Ankerfußes in das Nachverpressglied eingeleitet wird.The method according to the invention is characterized in that a post-pressing machine is connected to the post-pressing member, by means of which the post-pressing medium is automatically fed into the post-pressing member at a freely definable point in time to break up the not yet fully hardened anchor foot.

Eine Grundidee der Erfindung liegt darin, dass ein Nachverpressen eines Ankerfußes ohne Personal durch einen speziellen Nachverpressautomaten durchgeführt werden kann. Dabei wird der Nachverpressautomat mit dem Nachverpressglied leitungsverbunden, wobei das Nachverpressmedium zum Aufbrechen des noch nicht ausgehärteten primären Ankerfußes in das Nachverpressglied automatisch eingeleitet werden kann. Dabei kann in den Nachverpressautomat ein beliebiger Zeitpunkt eingegeben werden, zu welchem dann das Nachverpressmedium in das Nachverpressglied eingeleitet wird. Der Zeitpunkt zum Nachverpressen kann auch von einer entfernten Zentrale über eine vorzugsweise drahtlose Datenverbindung oder abhängig von Sensoren geschaltet werden, welche etwa einen Zustand des primären Ankerfußes, wie Festigkeit oder Restfeuchte etc., der Umgebung oder anderer relevanter Parameter ermitteln.A basic idea of the invention lies in the fact that a post-injection of an anchor base can be carried out without personnel using a special post-injection machine. In this case, the post-pressing machine is connected to the post-pressing member by a line, and the post-pressing medium can be automatically introduced into the post-pressing member to break up the primary anchor base that has not yet hardened. Any time at which the post-pressing medium is introduced into the post-pressing member can be entered into the post-pressing machine. The point in time for post-pressing can also be switched from a remote control center via a preferably wireless data connection or depending on sensors which determine the condition of the primary anchor base, such as strength or residual moisture, etc., the environment or other relevant parameters.

Somit kann ein Nachverpressen unabhängig von der Anwesenheit von Personal und somit auch an Wochenenden, Feiertagen, Morgen- oder Nachtstunden durchgeführt werden. Insbesondere kann durch den Einsatz eines Nachverpressautomaten nunmehr auch grundsätzlich auf Baustellen der Freitag zum Herstellen von Injektionsankern vorgesehen werden. Dies führt zu einer verbesserten Auslastung des Maschinenparks, zur Erhöhung der Wochenleistung bei zu erstellenden Injektionsankern und zur Verkürzung der Bauzeit. Im Ergebnis führt dies zu erheblichen Kostenvorteilen.This means that post-injection can be carried out independently of the presence of personnel and thus also on weekends, public holidays, mornings or nights. In particular, the use of a post-injection machine can now basically be used on construction sites for the production of injection anchors. This leads to improved utilization of the machine park, to an increase in the weekly output for injection anchors to be produced and to a reduction in the construction time. As a result, this leads to considerable cost advantages.

Abhängig von der Art der Herstellung des Injektionsankers wird ein Zugglied für den Anker beim oder nach dem Erstellen der Bohrung in diese eingebracht, wobei jeweils sicherzustellen ist, dass das Zugglied mit dem gebildeten Ankerfuß zuverlässig verbunden ist.Depending on the type of production of the injection anchor, a tension member for the anchor is introduced into the borehole during or after it is created, it being ensured in each case that the tension member is reliably connected to the anchor foot formed.

Eine bevorzugte Ausführungsform der Erfindung besteht darin, dass das Nachverpressmedium eine Flüssigkeit, insbesondere Wasser, oder ein Gas, insbesondere Druckluft, ist, durch welches der Ankerfuß aufgebrochen wird und dass zeitlich beabstandet in den aufgebrochenen Ankerfuß ein aushärtbares Medium eingeleitet wird.A preferred embodiment of the invention consists in that the post-injection medium is a liquid, in particular water, or a gas, in particular compressed air, through which the anchor base is broken open and that a hardenable medium is introduced into the broken anchor base at different times.

Bei diesem zweistufigen Nachverpressen erfolgt zu dem vorgegebenen Zeitpunkt zunächst ein Aufbrechen des primären Ankerfußes durch ein nicht-aushärtendes Medium, insbesondere Wasser oder Druckluft. Dieser erste Schritt kann durch den Nachverpressautomat durchgeführt werden, wobei das Speichern von Wasser oder Druckluft, die insbesondere aus der Umgebungsluft gebildet wird, problemlos möglich ist. Der zweite Schritt des Nachverpressens durch Einleiten eines aushärtenden Mediums in den aufgebrochenen primären Ankerfuß kann entweder ebenfalls durch den Nachverpressautomat, der dann einen zusätzlichen Speicher und gegebenenfalls eine zusätzliche Druckeinrichtung zum Erzeugen des Drucks für das aushärtbare Medium aufweist, durchgeführt werden. Alternativ kann der zweite Schritt des Nachverpressens nicht automatisch durch Personal zu einem späteren Zeitpunkt durchgeführt werden. Nach dem Aufbrechen des primären Ankerfußes können die aufgebrochenen Ankerfußteile bis zum Einleiten des aushärtenden Mediums selbst aushärten.In this two-stage post-injection, the primary anchor foot is first broken up at the specified point in time by a non-hardening medium, in particular water or compressed air. This first step can be carried out by the post-pressing machine, with the storage of water or compressed air, which is formed in particular from the ambient air, being possible without any problems. The second step of post-injection by introducing a hardening medium into the fractured primary anchor foot can either also be carried out by the post-pressing machine, which then has an additional reservoir and optionally an additional pressure device for generating the pressure for the hardenable medium. Alternatively, the second post-pressing step cannot be performed automatically by personnel at a later point in time. After breaking open the primary anchor foot, the broken anchor foot parts can self-harden until the hardening medium is introduced.

Besonders bevorzugt ist es nach einer Weiterbildung der Erfindung, dass als Nachverpressmedium eine aushärtbares Medium verwendet wird, insbesondere die aushärtende Masse zum Bilden des Ankerfußes. Hierbei wird also das Nachverpressen in einem einzigen Schritt durchgeführt, wobei das Nachverpressmedium insbesondere eine Zementsuspension oder eine andere aushärtbare Suspension sein kann. Bei Verwendung der gleichen aushärtbaren Masse wie zum Bilden des primären Ankerfußes kann so ein besonders stabiler finaler sekundärer Ankerfuß erzeugt werden.According to a development of the invention, it is particularly preferred that a hardenable medium is used as the post-injection medium, in particular the hardening mass for forming the anchor foot. In this case, therefore, the post-injection is carried out in a single step, in which case the post-injection medium can in particular be a cement suspension or another hardenable suspension. When using the same hardenable mass as for forming the primary anchor foot, a particularly stable final secondary anchor foot can be produced.

Zum Herstellen des Ankergliedes gibt es grundsätzlich verschiedene Verfahrensabläufe, welche aus dem Stand der Technik bekannt sind und insbesondere in dem eingangs genannten Dokument DE 2 050 292 A beschrieben und dargestellt sind. Die Erfindung umfasst alle diese grundsätzlichen Verfahrensvarianten zur Herstellung eines Injektionsankers, jedoch mit dem Schritt des automatischen Nachverpressens. Besonders bevorzugt ist es nach einer Ausführungsform der Erfindung, dass das Injektionsglied zum Injizieren der aushärtbaren Masse und ein separates Nachverpressglied zum Injizieren des Nachverpressmediums in der Bohrung verbleiben. Vorteilhafterweise können das Injektionsglied und das Nachverpressglied zusammen mit dem Zugglied in die Bohrung eingebracht werden. Alternativ könnte das Injektionsglied auch als Nachverpressglied für das Nachverpressmedium und/ oder ein anderes aushärtbares Medium zum Bilden des sekundären Ankerfußes eingesetzt werden. Grundsätzlich kann das Injektionsglied ein separates Element sein, welches mit oder nach dem Entfernen des Bohrwerkzeuges in die Bohrung eingebracht wird. Besonders vorteilhaft ist es nach einer Ausführungsvariante der Erfindung, dass das Injektionsglied als ein Bohrwerkzeug ausgebildet ist, mit welchem die Bohrung im Boden erstellt wird. Das Injektionsglied kann gleichzeitig oder alternativ ein Teil des Zuggliedes sein, so dass ein insgesamt einfacher Arbeitsablauf erreicht wird.There are fundamentally different process sequences for producing the anchor member, which are known from the prior art and in particular in the document mentioned at the outset DE 2 050 292 A are described and illustrated. The invention includes all of these basic method variants for producing an injection anchor, but with the step of automatic post-injection. According to one embodiment of the invention, it is particularly preferred that the injection member for injecting the hardenable mass and a separate post-injection member for injecting the post-injection medium remain in the bore. Advantageously, the injection member and the post-injection member can be introduced into the bore together with the tension member. Alternatively, the injection member could also be used as a post-injection member for the post-injection medium and/or another hardenable medium to form the secondary anchor base. In principle, the injection member can be a separate element which is introduced into the borehole with or after the drilling tool has been removed. According to one embodiment variant of the invention, it is particularly advantageous that the injection member is designed as a drilling tool with which the borehole is created in the ground. The injection member can simultaneously or alternatively be part of the traction member, so that an overall simple workflow is achieved.

Eine besonders zweckmäßige Verfahrensvariante besteht weiterhin darin, dass das Nachverpressglied mindestens eine Austrittsöffnung aufweist, durch welche das Nachverpressmedium in die Bohrung eingeleitet wird. Das schlauch- oder rohrartige Nachverpressglied kann im Bereich des zu bildenden Ankerfußes einen Abschnitt mit mehreren Öffnungen oder mit verminderter Materialstärke aufweisen, welcher beim Einleiten des Nachverpressmediums mit einem vorgegebenen Druck definiert aufreißt. Hierdurch kann das Nachverpressmedium in den umgebenden Bereich austreten und den primären Ankerfuß aufbrechen beziehungsweise ein aushärtbares Medium zum Bilden des sekundären Ankerfußes einleiten.A particularly expedient variant of the method is that the post-injection member has at least one outlet opening through which the post-injection medium is introduced into the bore. In the area of the anchor base to be formed, the tube-like or tube-like post-grouting member can have a section with a plurality of openings or with a reduced material thickness, which tears open in a defined manner when the post-pressing medium is introduced at a predetermined pressure. As a result, the post-injection medium can escape into the surrounding area and break up the primary anchor foot or introduce a hardenable medium to form the secondary anchor foot.

Abhängig vom Verfahren wird dabei ein geeigneter Druck eingestellt. Nach einer Ausführungsform der Erfindung ist es in bevorzugter Weise vorgesehen, dass ein Druck zum Einleiten des Nachverpressmediums von mindestens 10 bar, vorzugsweise zwischen 15 bar und 40 bar eingestellt wird. In besonderen Fällen können auch kleinere oder größere Drücke vorgesehen sein.Depending on the process, a suitable pressure is set. According to one embodiment of the invention, it is preferably provided that a pressure of at least 10 bar, preferably between 15 bar and 40 bar, is set for introducing the post-injection medium. In special cases, lower or higher pressures can also be provided.

Weiterhin ist es nach einer Fortbildung der Erfindung besonders vorteilhaft, dass der Nachverpressautomat mit einer Steuerung versehen ist, in der eine Zeit zum Ausführen des automatischen Nachverpressens eingegeben wird. Die Steuerung kann dabei insbesondere eine Zeitschaltuhr aufweisen, mit welcher insbesondere eine Zeitspanne oder ein definierter Zeitpunkt zum Durchführen des automatischen Nachverpressens eingegeben werden kann. Bei Erreichen des eingegebenen Zeitpunktes kann dann über die mechanische oder vorzugsweise elektronische Steuerung der Nachverpressautomat zum Einleiten des Nachverpressmediums in der gewünschten Weise in Betrieb gesetzt werden.Furthermore, according to a development of the invention, it is particularly advantageous that the automatic post-pressing machine is provided with a controller in which a time for carrying out the automatic post-pressing is entered. In this case, the controller can in particular have a timer, with which in particular a period of time or a defined point in time for carrying out the automatic post-pressing can be entered. When the time that has been entered is reached, the post-pressing machine for introducing the post-pressing medium can then be put into operation in the desired manner via the mechanical or preferably electronic control.

Erfindungsgemäß umfasst die Steuerung dabei zusätzlich eine Eingabeeinrichtung zum Eingeben des notwendigen Drucks, der einzuleitenden Füllmenge und/oder eines Grenzdrucks, bei welchem der Nachverpressvorgang gestoppt werden kann.According to the invention, the control additionally includes an input device for inputting the necessary pressure, the filling quantity to be introduced and/or a limit pressure at which the post-injection process can be stopped.

Die erfindungsgemäße Vorrichtung ist als ein Nachverpressautomat ausgebildet, welcher dadurch gekennzeichnet ist, dass eine Druckeinrichtung vorgesehen ist, welche mit dem Nachverpressglied leitungsverbindbar ist und welche zum Einleiten des Nachverpressmediums unter Druck in das Nachverpressglied ausgebildet ist, und dass eine Steuerung vorgesehen ist, in welcher ein Zeitpunkt zum automatischen Einleiten des Nachverpressmediums in das Nachverpressglied ausgebildet ist.The device according to the invention is designed as a post-pressing machine, which is characterized in that a pressure device is provided, which can be connected by line to the post-pressing member and which is designed to introduce the post-pressing medium under pressure into the post-pressing member, and that a controller is provided in which a Time for the automatic introduction of the Nachverpressmedium is formed in the Nachverpressglied.

Mit dem erfindungsgemäßen Nachverpressautomat kann insbesondere das zuvor beschriebene Verfahren durchgeführt und die damit verbundenen Vorteile erreicht werden.In particular, the method described above can be carried out with the post-pressing machine according to the invention and the advantages associated therewith can be achieved.

Eine bevorzugte Ausführungsform besteht nach der Erfindung darin, dass mindestens ein Behälter zum Aufnehmen des Nachverpressmediums vorgesehen ist. Der Behälter kann dabei auch ein Druckbehälter sein, in dem das Medium, insbesondere Druckluft, unter Druck gespeichert ist. Grundsätzlich können auch mehrere, insbesondere zwei, Behälter vorgesehen sein, so dass etwa in einem Behälter Druckluft und in einem anderen Behälter das aushärtbare Medium gelagert ist.According to a preferred embodiment of the invention, at least one container is provided for receiving the post-injection medium. The container can also be a pressure container in which the medium, in particular compressed air, is stored under pressure. In principle, several, in particular two, containers can also be provided, so that, for example, compressed air is stored in one container and the curable medium is stored in another container.

Die Druckeinrichtung kann jede geeignete Einrichtung zum Erzeugen eines Druckes sein, etwa ein Druckspeicherbehälter mit komprimiertem Gas oder einer Druckfedereinheit. Es ist nach einer Ausführungsform der Erfindung besonders bevorzugt, dass die Druckeinrichtung eine Pumpe und/oder einen Kompressor aufweist. Hierdurch kann der notwendige Druck zum Einleiten des Nachverpressmediums aufgebracht werden. Vorzugsweise sind die Komponenten des Nachverpressautomaten elektrisch betrieben. Der Nachverpressautomat kann zur Energieversorgung mit Batterien versehen sein oder eine Verbindung zu einer externen Stromquelle aufweisen. Grundsätzlich sind auch andere Energiequellen zum Betreiben des Nachverpressautomaten möglich.The pressurizing means may be any suitable means for generating pressure, such as a compressed gas accumulator or a compression spring assembly. According to one embodiment of the invention, it is particularly preferred that the pressure device has a pump and/or a compressor. In this way, the necessary pressure for introducing the post-injection medium can be applied. The components of the post-pressing machine are preferably operated electrically. The post-pressing machine can be provided with batteries for power supply or have a connection to an external power source. In principle, other energy sources are also possible for operating the post-pressing machine.

Grundsätzlich kann für jedes einzelne Nachverpressglied ein einzelner Nachverpressautomat vorgesehen sein. Hierdurch kann der Nachverpressautomat insgesamt sehr kompakt ausgebildet werden. Eine alternative und bevorzugte Ausführungsform der Erfindung kann darin gesehen werden, dass der Nachverpressautomat über mehrere Leitungen an mehrere Nachverpressglieder angeschlossen ist. Bei dieser Anordnung kann insbesondere ein zentraler Nachverpressautomat mehrere Nachverpressglieder mit dem Nachverpressmedium versorgen. Die Steuerung kann dabei so ausgelegt sein, dass dies gleichzeitig für alle oder mehrere Nachverpressglieder erfolgt oder dass die Nachverpressvorgänge an den einzelnen Nachverpressgliedern sukzessive durchgeführt werden.In principle, a single post-pressing machine can be provided for each individual post-pressing member. As a result, the post-pressing machine can be made very compact overall. An alternative and preferred embodiment of the invention can be seen in the fact that the Nachverpressautomat over several Lines are connected to several post-pressing members. In this arrangement, in particular, a central post-pressing machine can supply several post-pressing members with the post-pressing medium. The control can be designed in such a way that this takes place simultaneously for all or several post-pressing members or that the post-pressing processes are carried out successively on the individual post-pressing members.

Nachfolgend wird die Erfindung anhand eines bevorzugten Ausführungsbeispieles weiter beschrieben, welches schematisch in der beigefügten Zeichnung dargestellt ist.In the following, the invention is further described with reference to a preferred exemplary embodiment, which is shown schematically in the attached drawing.

In der einzigen Figur ist in fünf Schritten die Ausführung einer bevorzugten Ausführungsvariante des erfindungsgemäßen Verfahrens dargestellt.In the single figure, the execution of a preferred embodiment of the method according to the invention is shown in five steps.

Dabei wird in einem Schritt a) mittels eines Bohrwerkzeuges 20 eine Bohrung 5 in einen Boden oder einen etwa vertikalen Wandbereich eingebracht. Über eine Bohrerspitze 21 kann eine aushärtbare Masse 12 in die Bohrung 5 eingebracht werden, um einen primären Ankerfuß 16 zu bilden, wie anschaulich in den Schritten b) und c) dargestellt ist.In a step a), a drilling tool 20 is used to drill a hole 5 in a floor or an approximately vertical wall area. A hardenable mass 12 can be introduced into the bore 5 via a drill bit 21 in order to form a primary anchor base 16, as illustrated in steps b) and c).

Innerhalb des Bohrwerkzeuges 20 kann das stangenförmige Zugglied 14 zum Bilden des Injektionsankers 10 sowie das stangenförmige Injektionsglied 22 angeordnet sein, so dass diese bereits mit dem Bohrwerkzeug 20 in die Bohrung 5 eingebracht werden können. Nach Erreichen der gewünschten Tiefe kann das äußere Bohrwerkzeug 20 wieder aus der Bohrung 5 rückgezogen werden, wobei der Freiraum in der Bohrung 5 mit der aushärtbaren Masse 12 zumindest bereichsweise verfüllt wird, wie in den Schritten c) und d) anschaulich dargestellt ist. Bei diesem Verfahren dient das Bohrwerkzeug 20 gleichzeitig als ein Injektionsglied 22 zum Injizieren der aushärtbaren Masse 12 zum Bilden des primären Ankerfußes 16 sowie gegebenenfalls zum Bilden eines weiteren Bereiches des Injektionsankers 10.The rod-shaped tension member 14 for forming the injection anchor 10 and the rod-shaped injection member 22 can be arranged within the drilling tool 20 so that they can already be introduced into the bore 5 with the drilling tool 20 . After the desired depth has been reached, the outer drilling tool 20 can be withdrawn from the borehole 5 again, with the free space in the borehole 5 being at least partially filled with the hardenable compound 12, as clearly illustrated in steps c) and d). In this method, the drilling tool 20 serves at the same time as an injection member 22 for injecting the hardenable mass 12 to form the primary anchor base 16 and, if necessary, for forming a further area of the injection anchor 10.

Gemäß der Erfindung wird mit dem Zugglied 14 ein schlauchförmiges Nachverpressglied 30 mit einem hohlen Grundkörper 32 in die Bohrung 5 eingebracht, solange die aushärtbare Masse 12 sich noch in einem weichen, fließfähigen Zustand befindet. Am bodenseitigen Endbereich des Grundkörpers 32 des Nachverpressgliedes 30 ist zumindest abschnittsweise ein Nachverpressabschnitt 34 angeordnet, welcher Auspressöffnungen 36 in dem schlauchförmigen Grundkörper 32 abdeckt.According to the invention, a tubular post-pressing member 30 with a hollow base body 32 is introduced into the bore 5 with the tension member 14 as long as the hardenable mass 12 is still in a soft, free-flowing state. A post-pressing section 34 is arranged at least in sections on the bottom end area of the base body 32 of the post-pressing member 30 , which post-pressing section covers ejection openings 36 in the tubular base body 32 .

Wie anschaulich in Schritt e) dargestellt ist, wird am freien, aus dem Boden herausragenden Ende des Nachverpressgliedes 30 über einen Anschluss 38 und eine Leitung 49 ein erfindungsgemäßer Nachverpressautomat 40 angeschlossen.As clearly shown in step e), a post-pressing machine 40 according to the invention is connected via a connection 38 and a line 49 to the free end of the post-pressing member 30 protruding from the ground.

Der Nachverpressautomat 40 weist ein kastenartiges Gestell 42 mit einer Steuerung 44, mindestens einem Behälter 48 zum Aufnehmen eines Nachverpressmediums 26 und einer Druckeinrichtung 50 zum Erzeugen eines gewünschten Injizierdruckes auf. Die Steuerung 44 ist mit einer Zeitschaltuhr 46 versehen, mit der ein Zeitpunkt eingebbar ist, zu welchem mittels des Nachverpressautomaten 40 automatisch Nachverpressmedium 26 aus dem Behälter 48 mittels der Druckeinrichtung 50 unter Druck in das Nachverpressglied 30 einleitbar ist.The post-injection machine 40 has a box-like frame 42 with a controller 44, at least one container 48 for receiving a post-injection medium 26 and a pressure device 50 for generating a desired injection pressure. The controller 44 is provided with a timer 46 with which a point in time can be entered at which the post-pressing machine 40 can automatically introduce post-press medium 26 from the container 48 by means of the pressure device 50 into the post-press member 30 .

Durch das Einleiten des Nachverpressmediums 26, welches insbesondere identisch mit der aushärtbaren Masse 12 sein kann, kann zu einem vorgebbaren Zeitpunkt, bei dem der primäre Ankerfuß 16 teilweise, aber noch nicht vollständig ausgehärtet ist, in die Bohrung 5 eingeleitet werden. Dabei kann bei einem Druck von beispielsweise 15 bar das eine oder die mehreren Nachverpressabschnitte 34 am Nachverpressglied 30 aufgerissen werden, so dass die Austrittsöffnungen 36 im Grundkörper 32 des Nachverpressgliedes 30 freigegeben werden. Das strömungsfähige Nachverpressmedium 26 kann dabei in den Bereich des primären Ankerfußes 16 eindringen, diesen aufbrechen und zu einem vergrößerten, etwa birnenförmigen sekundären Ankerfuß 18 aufweiten. Nach vollständiger Aushärtung wird so ein durchmessererweiterter sekundärer Ankerfuß 18 erreicht, in dem das Zugglied 14 fest eingebunden ist, so dass über das Zugglied 14 und den erweiterten sekundären Ankerfuß 18 relativ hohe Kräfte in den Boden abgetragen werden können.By introducing the post-pressing medium 26, which can in particular be identical to the hardenable compound 12, it can be introduced into the bore 5 at a predeterminable point in time at which the primary anchor base 16 has partially but not yet fully hardened. At a pressure of 15 bar, for example, the one or more post-pressing sections 34 on the post-pressing member 30 can be torn open, so that the outlet openings 36 in the base body 32 of the post-pressing member 30 are released. The flowable post-injection medium 26 can penetrate into the area of the primary anchor foot 16 , break it up and widen it to form an enlarged, approximately pear-shaped secondary anchor foot 18 . After complete hardening, a secondary anchor foot 18 with an enlarged diameter is achieved, in which the tension member 14 is firmly integrated, so that relatively high forces can be discharged into the ground via the tension member 14 and the enlarged secondary anchor foot 18 .

In einem oberen Bereich des Injektionsankers 10 kann das Zugglied 14 von einem zylindrischen Rohrelement 15 umgeben sein.In an upper area of the injection anchor 10 the tension member 14 can be surrounded by a cylindrical tubular element 15 .

Nach Abschluss des Nachverpressens, welches insbesondere ohne Personal an Wochenenden ausgeführt werden kann, kann der Nachverpressautomat 40 durch Trennen der Leitung 49 am Anschluss 38 wieder entfernt und für einen weiteren Nachpressvorgang vorgesehen werden.After completion of the post-pressing, which can be carried out in particular without personnel at weekends, the post-pressing machine 40 can be removed again by disconnecting the line 49 at the connection 38 and provided for a further post-pressing process.

Claims (12)

  1. Method for producing an injection anchor (10) in the ground, wherein
    - a bore (5) is created in the ground,
    - a hardening material (12) for forming an anchor foot (16) is injected by means of an injection member (22) at least in a partial region of the bore (5), and
    - after partial, not yet complete, hardening of the material (12) a post-grouting medium (26) is introduced under pressure into a region of the anchor foot (16) via a post-grouting member (30), by which medium the not yet completely hardened anchor foot (16) is broken up,
    characterised in that
    an automatic post-grouting machine (40) is connected to the post-grouting member (30), by which machine the post-grouting medium (26) for breaking up the not yet hardened anchor foot (16) is automatically introduced into the post-grouting member (30) at a freely specifiable time.
  2. Method according to claim 1,
    characterised in that
    the post-grouting medium (26) is a liquid, in particular water, or a gas, in particular compressed air, by which the anchor foot (16) is broken up, and
    a hardenable medium is introduced temporally spaced into the broken-up anchor foot (16).
  3. Method according to claim 1,
    characterised in that
    a hardenable medium is used as post-grouting medium (26), in particular the hardening material (12) for forming the anchor foot (16).
  4. Method according to one of claims 1 to 3,
    characterised in that
    the injection member (22) for injecting the hardenable material (12) and the post-grouting member (30) for injecting the post-grouting medium (26) remain in the bore (5).
  5. Method according to one of claims 1 to 4,
    characterised in that
    the injection member (22) is designed as a drilling tool (20) with which the bore (5) in the ground is created.
  6. Method according to one of claims 1 to 5,
    characterised in that
    the post-grouting member (30) has at least one exit opening, through which the post-grouting medium (26) is introduced into the bore (5).
  7. Method according to one of claims 1 to 6,
    characterised in that
    a pressure for introducing the post-grouting medium (26) of at least 10 bar, preferably between 15 bar and 40 bar, is set.
  8. Method according to one of claims 1 to 7,
    characterised in that
    the automatic post-grouting machine (40) is provided with a control unit (44), in which a time for carrying out the automatic post-grouting is input.
  9. Automatic post-grouting machine for a method according to one of claims 1 to 8, wherein a pressure means (50) is provided which can be connected by a line to the post-grouting member (30) and which is designed to introduce the post-grouting medium (26) under pressure into the post-grouting member (30), and wherein a control unit (44) is provided in which a time for automatic introduction of the post-grouting medium (26) into the post-grouting member (30) is formed,
    characterised in that
    the automatic post-grouting machine is a two-stage automatic post-grouting machine (40) and
    in that the control (44) comprises an input device for inputting the necessary pressure, the filling quantity to be introduced and/or a limit pressure at which the post-grouting process can be stopped.
  10. Automatic post-grouting machine according to claim 9,
    characterised in that
    at least one container (48) for receiving the post-grouting medium (26) is provided, in particular a container for a non-curable medium and a container for a curable medium.
  11. Automatic post-grouting machine according to claim 9 or 10,
    characterised in that
    the pressure means (50) comprises a pump and/or a compressor.
  12. Automatic post-grouting machine according to claims 9 to 11,
    characterised in that
    it is connected to a plurality of post-grouting members (30) by way of a plurality of lines (49).
EP18196794.4A 2018-09-26 2018-09-26 Method for making an injection anchor in the soil and automatic pressure device for same Active EP3628781B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18196794.4A EP3628781B1 (en) 2018-09-26 2018-09-26 Method for making an injection anchor in the soil and automatic pressure device for same
PCT/EP2019/071721 WO2020064208A1 (en) 2018-09-26 2019-08-13 Method for producing an injection anchor in the ground and automatic post-grouting unit therefor
US17/275,807 US11993910B2 (en) 2018-09-26 2019-08-13 Method for producing an injection anchor in the ground and automatic post-grouting machine for the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18196794.4A EP3628781B1 (en) 2018-09-26 2018-09-26 Method for making an injection anchor in the soil and automatic pressure device for same

Publications (2)

Publication Number Publication Date
EP3628781A1 EP3628781A1 (en) 2020-04-01
EP3628781B1 true EP3628781B1 (en) 2023-06-07

Family

ID=63787722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18196794.4A Active EP3628781B1 (en) 2018-09-26 2018-09-26 Method for making an injection anchor in the soil and automatic pressure device for same

Country Status (3)

Country Link
US (1) US11993910B2 (en)
EP (1) EP3628781B1 (en)
WO (1) WO2020064208A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107447756A (en) * 2017-09-25 2017-12-08 西南石油大学 A kind of constructing device for compensating prestressd anchor cable loss and compensation construction method
US20180066519A1 (en) * 2016-09-02 2018-03-08 J-Lok Co. Pumpable Resin System

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949705A (en) * 1953-06-05 1960-08-23 Carl F Spickelmier Reinforced concrete slab construction
US3222873A (en) * 1961-07-31 1965-12-14 Chester I Williams Groutable rock anchor
US3336758A (en) * 1965-01-11 1967-08-22 Chester I Williams Rock bolt assembly and procedure for two-stage grouting operations
DE2050292A1 (en) 1970-10-13 1972-06-29 Bauer, Dipl Ing , Dr Ing , Karlheinz, 8898 Schrobenhausen Method for producing earth anchors with an extended anchor foot
DE2101236A1 (en) * 1971-01-12 1972-08-17 Bauer, Karlheinz, Dipl.-Ing. Dr.-Ing., 8898 Schrobenhausen Corrosion-protected tie rods for anchoring components in the ground as well as a method for producing tension anchors with corrosion-protected tie rods
JPS61196070A (en) * 1985-02-27 1986-08-30 大成建設株式会社 Water stop method of structure
DE3535320A1 (en) * 1985-10-03 1987-04-09 Dyckerhoff & Widmann Ag METHOD AND DEVICE FOR SETTING A ROD, WIRE OR TUBULAR INSTALLATION COMPONENT IN A FLOOR INFORMATION WITH PRESSING WATER
KR100775645B1 (en) * 2004-08-26 2007-11-13 손정찬 Automatic controller for grout injection, the injection system and the control method
US20070286687A1 (en) * 2006-06-12 2007-12-13 Cesare Melegari Method and equipment for constructing micropiles in soil
DE102009029892A1 (en) * 2008-11-01 2011-09-15 Reinhard Klöckner Device i.e. anchorage body, for anchorage of wires or cables of network elements in mountainous region, has grouted bodies merged in area and penetrated mutually such that body has cone or truncated pyramid-shape
JP2014051798A (en) * 2012-09-06 2014-03-20 Splice Sleeve Japan Ltd Joint construction method of reinforcing-bar

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180066519A1 (en) * 2016-09-02 2018-03-08 J-Lok Co. Pumpable Resin System
CN107447756A (en) * 2017-09-25 2017-12-08 西南石油大学 A kind of constructing device for compensating prestressd anchor cable loss and compensation construction method

Also Published As

Publication number Publication date
WO2020064208A1 (en) 2020-04-02
US20220049448A1 (en) 2022-02-17
EP3628781A1 (en) 2020-04-01
US11993910B2 (en) 2024-05-28

Similar Documents

Publication Publication Date Title
DE69700280T2 (en) Process for increasing the load-bearing capacity of a foundation floor for buildings
EP2257690B1 (en) Corrosion-protected self-drilling anchor and anchor subunit and method for the production thereof
DE1226516B (en) Process for two-stage concreting of rock anchors and an anchor for this
AT408248B (en) METHOD AND DEVICE FOR DRILLING HOLES
DE60018562T2 (en) METHOD AND DEVICE FOR PRODUCING A PFAHL IN THE GROUND
DE102010047915A1 (en) stamper
EP1381756A1 (en) Method and device for drilling a hole and for securing an anchorage in a bore hole
DE10346040A1 (en) Method and test arrangement for determining the carrying behavior of displacement piles
CH716469A1 (en) Drilling head, reinforcement cage and drilling unit for making piles.
EP3628781B1 (en) Method for making an injection anchor in the soil and automatic pressure device for same
AT511240B1 (en) METHOD FOR CREATING A CONSTRUCTION AND MACHINE ANCHORING SYSTEM
EP2003251B1 (en) Holder stem
DE3732894C2 (en)
EP0481079A1 (en) Method and tool for producing a pile
DE3926787C2 (en) Method and device for inserting and anchoring a tensile pile
DE10258300B4 (en) Method and device for stabilizing abandoned mine shafts
DE10146140A1 (en) Fixture device with lateral openings is for fixing poles, posts, masts or similar in ground, particularly gravelled areas and comprises hollow base body with holding and anchoring sections
DE19744322C1 (en) Method of placing anchor piles in friable soils
DE102004059632A1 (en) Foundation unit for a rod-like component comprises a sleeve open at both ends with a unit for anchoring in the ground and a unit for introducing a drive and a tool with a front operating region and an oppositely-lying region
DE102021116487B3 (en) Geotextile covered liquid soil columns
EP0498786B1 (en) Method for limiting subsidence during the excavation of underground cavities
DE102011078769A1 (en) rock bolt
WO2003091503A1 (en) Method and device for the production of subterranean material columns
DE3615490C2 (en) Method for solidifying the foot area of an in-situ concrete element in a bore and device for carrying out the method
DE2410212A1 (en) Sealing device for rock consolidating plastics grouting - includes tensioner arm, bored probe, and foam plastics recessed end plug

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200713

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20201112

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220809

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

INTC Intention to grant announced (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230103

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1575361

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230615

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502018012280

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230907

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230908

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230922

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231009

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231007

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502018012280

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

26N No opposition filed

Effective date: 20240308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230926

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230930

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230926

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230926

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230607

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230926

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230926

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230930