EP0217366B1 - Method for placing traction or compression anchors beneath the water level for anchoring a sheet pile wall or the like - Google Patents

Method for placing traction or compression anchors beneath the water level for anchoring a sheet pile wall or the like Download PDF

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Publication number
EP0217366B1
EP0217366B1 EP86113464A EP86113464A EP0217366B1 EP 0217366 B1 EP0217366 B1 EP 0217366B1 EP 86113464 A EP86113464 A EP 86113464A EP 86113464 A EP86113464 A EP 86113464A EP 0217366 B1 EP0217366 B1 EP 0217366B1
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EP
European Patent Office
Prior art keywords
pile wall
mounting
sheet
wall
support means
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.)
Expired
Application number
EP86113464A
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German (de)
French (fr)
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EP0217366A2 (en
EP0217366A3 (en
Inventor
& Widmann Aktiengesellschaft Dyckerhoff
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.)
Walter Bau AG
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Dyckerhoff and Widmann AG
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Application filed by Dyckerhoff and Widmann AG filed Critical Dyckerhoff and Widmann AG
Priority to AT86113464T priority Critical patent/ATE48162T1/en
Publication of EP0217366A2 publication Critical patent/EP0217366A2/en
Publication of EP0217366A3 publication Critical patent/EP0217366A3/en
Application granted granted Critical
Publication of EP0217366B1 publication Critical patent/EP0217366B1/en
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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
    • E02D5/76—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
    • 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

Definitions

  • the invention relates to a method and a device for setting a tension or pressure anchor with a rod, wire or tubular anchor element below a water level for anchoring a sheet pile wall, diaphragm wall, quay wall or the like, with a first on the sheet pile wall at the level of the bore to be produced Holding device for a drill carriage attached with an underwater drilling machine, then pierced the sheet pile wall and then the anchor element is inserted and anchored (see. DE-C 3 122032).
  • a known device of this type is used to ram an anchor pole through a sheet pile wall.
  • the holding device consists of a base plate, which is arranged obliquely at the end of the drill carriage in accordance with the desired drilling direction, preferably at an angle of 45 degrees thereto, and is fixedly connected to the drill carriage (DE-C 31 22 032).
  • This device must be attached to the sheet pile by divers;
  • the drilling machine is operated from above the water surface via a control unit which is connected to the drilling machine via hose lines.
  • the sheet pile wall is first pierced by means of a tubular drill; the drill remains in the sheet pile and serves as a guide when ramming the anchor pile through the sheet pile.
  • a disadvantage of this known method and the device is that a number of jobs can only be carried out by divers, furthermore that the drill is lost and that the ramming of the anchor pole, apart from the guidance through the short drill pipe, does not require any further guidance and therefore no control he follows. If the anchor pile encounters an obstacle when ramming in, the sheet pile must be pierced again.
  • the object of the invention is to make a method of the type mentioned at the outset suitable for setting a tension or pressure anchor and to provide a device suitable for carrying it out, as a result of which the work to be carried out under water is reduced to a minimum or avoided entirely and the whole Drill to be recovered.
  • this object is achieved procedurally in that after adjusting and attaching the holding device with the drill carriage, the free end of the carriage is raised by pivoting about a joint arranged on the holding device with a horizontal axis above the water level, at the end projecting above the water level the gun mount the drill with a first drill for drilling through the sheet pile and then the gun lowered into the drilling position and the sheet pile is pierced, that after the first drill has been withdrawn, the gun mount is raised again above the water level and a drill pipe for producing the borehole in full Mounted length, the carriage lowered back into the drilling position and the drill pipe is driven into the ground through the opening in the sheet pile wall and that after the insertion of the anchor element, the drill pipe with compression of the cavity between the anchor element and the borehole wall with hardening material ial pulled and disassembled after lifting the carriage above the water level.
  • the anchor element can be inserted into the drill pipe at the same time as the drill hole is being made.
  • the holding device is expediently attached to tension members, e.g. Threaded rods, ropes or the like are held and adjusted in a hanging manner and appropriately fastened by clamping to the sheet pile wall.
  • tension members e.g. Threaded rods, ropes or the like are held and adjusted in a hanging manner and appropriately fastened by clamping to the sheet pile wall.
  • the carriage can also be raised and lowered using a cable.
  • the advantage of the method according to the invention is above all that the drilling machine, the drill pipe, the anchor element and, if appropriate, a holding crossmember and an anchor nut are mounted from land when the mount is folded up above the water level, and the mount is carried out in a simple manner using a cable into the Drilling position can be lowered.
  • the holding and adjusting of the holding device and its attachment to the sheet pile wall can also be carried out from land using cable pulls and corresponding control devices. Since the length of the drill carriage is greater than the length of the drill pipe or anchor element, it is not only possible to dispense with the otherwise necessary insertion of the drill pipe and anchor element, but possibly even insert the anchor element into the drill pipe from the outset and together with it into the ground be screwed in.
  • a device which is particularly suitable for carrying out the method according to the invention, with a holding device which is adjustable and attachable to a sheet pile wall or the like, and a drill mount attached to it, with guides for a drilling machine and a drill and / or a drill pipe, is distinguished by the fact that it is fully loaded
  • the length of the drill pipe or the anchor element dimensioned mount on the holding device can be pivoted about a joint with a horizontal axis running parallel to the sheet pile wall and can be raised and lowered from land by means of a cable pull.
  • the holding device is useful on tension members, e.g. Threaded rods, ropes or the like are suspended and can be raised and lowered from land and adjusted in front of the sheet pile wall.
  • tension members e.g. Threaded rods, ropes or the like are suspended and can be raised and lowered from land and adjusted in front of the sheet pile wall.
  • the joint can be designed to be detachable and vertical guide rails can be provided, along which the lower end of the mount can be raised above the water surface and lowered again.
  • the holding device can be provided with pliers which can be actuated by means of hydraulic cylinder-piston units. Magnets or suction devices can also be provided for fastening the holding device to the sheet pile wall.
  • the holding device expediently has guide bodies adapted to the contour of the sheet pile wall. The centering of the holding device on the sheet pile wall is thereby facilitated, the torque occurring during drilling is absorbed and security against horizontal displacements of the holding device is achieved.
  • the mount is also pivotally mounted on the holding device about an articulation with an axis running at right angles to the drilling axis.
  • the pivot axis of this bearing should at least approximately go through the center of the opening in the sheet pile wall.
  • the arrangement of this joint in the immediate vicinity of the opening of the sheet pile wall and such that its axis passes through the center of the opening and intersects the borehole axis has the advantage that drilling can be carried out through the same opening in the sheet pile wall with different horizontal angles, for example in an obstacle in the direction initially drilled, e.g. a boulder that hinders the drilling process. This prevents further weakening of the sheet pile wall and speeds up the work process.
  • means can be provided on the holding device for pivoting the mount around the pivot axis running at right angles to the drilling axis and for fixing it in a specific position.
  • These means are expediently hydraulic cylinder-piston units.
  • a connecting strap can be arranged between the joint with the horizontal axis and that with the axis running at right angles to the drilling axis.
  • the joint with a horizontal axis and the joint with an axis perpendicular to the drilling axis can also be combined in a ball joint.
  • the mount can also be gimbaled on the holding device; in any case, the swivel axes should go through the center of the opening of the sheet pile wall.
  • a holding device 2 is prepared, which can be attached to the sheet pile wall 1 from the water side.
  • a drill carriage 10 is pivotably mounted about a joint 3 with a horizontal axis running parallel to the sheet pile wall 1.
  • the length of the mount 10 is selected so that it can accommodate the full length of the drill pipe 17 required for drilling the bore and the anchor element 12.
  • the carriage 10 is held at its upper end by means of a cable 13 which leads to a telescopic boom 18 on a crane vehicle 33.
  • the drilling machine 14 is mounted from land, which can be moved along the carriage 10 by means of a carriage 15.
  • the drilling machine 14 is designed in a manner known per se; it has a drill head and a drive motor. Behind the drill head there is a flushing head with a rod that is guided through the drill head. The flushing head can be moved along the carriage 10 independently of the drilling head.
  • a drill 16 with which the sheet pile wall 1 can be pierced is first attached to the drilling machine 14. Then the carriage 10 is lowered into the drilling position by means of the cable 13; the drill 16 is thus aligned in the anchor axis 11, which also forms the drilling axis. Then the drill 14 with the drill 16 is e.g. pulled by means of a chain drive along the carriage 10 in the direction of the sheet pile wall 1 until the head of the drill 16 is on the sheet pile wall and pierces it. Then the drill 14 with the drill 16 is pulled back into the starting position, the mount is pivoted upwards about the joint 3 and the drill 16 is dismantled from the ground.
  • Drilled tube 17 placed in full length, aligned and connected to the drill 14.
  • the drill pipe 17 is driven with the aid of the drilling machine 14 through the opening 28 previously created in the sheet pile wall 1 into the soil formation 5 to the desired depth.
  • the head of the drilling machine 14 is detached from the drilling tube 17, the drilling machine 14 is pulled back into the starting position and the mount 10 is pivoted upwards again.
  • An anchor element 12 e.g. an anchor rod, placed on the carriage 10 and aligned. At the bottom end of the anchor element 12 there is a claw device 20. Furthermore, a sealing plate 22 is fastened to the anchor element 12, which seals the cavity between the anchor element and the drill pipe 17, and a compression line 21, which is passed through the sealing plate 22. The anchor element 12 is held by the linkage of the flushing head. After the carriage 10 has been lowered again into the drilling position, the anchor element 12 is inserted into the drill pipe 17 by means of the drilling machine 14 until it has reached its desired position.
  • an anchor element 12 e.g. an anchor rod
  • the length of the mount 10 is greater than the length of the anchor element 12, it can be inserted into the drill pipe 17 beforehand and at the same time screwed into the bottom formation 5.
  • the head of the drilling machine 14 is then coupled again to the drilling pipe 17 in order to be able to pull it.
  • This situation is shown in Fig. 2.
  • the drill pipe 17 is initially moved back only a short distance while the flushing head, which holds the armature 12, remains standing.
  • the anchor element 12 sits firmly in the ground.
  • the cavity between the anchor element 12 and the borehole wall is then continuously pressed with a grout, e.g. Cement mortar filled until it has reached the sealing plate 22.
  • the grout thus forms a grouting body 31.
  • the mount 10 is pivoted up by means of the cable 13 and the drilling pipe 17 is dismantled.
  • a traverse 19 e.g. fixed, aligned and adjusted in the form of a prefabricated concrete component. After lowering the carriage 10 again into the drilling position, this cross member 19 can be moved in the direction of the anchor element 12 by means of the drilling machine and pushed over it. The cross member 19 thus extends a certain distance into the opening 28 in the sheet pile wall 1 (FIG. 3).
  • the drilling machine 14 After loosening the connection between the crossmember 19 and the drilling machine 14, the drilling machine 14 is moved back into its starting position. An anchor nut 23 can then be introduced in the same way and screwed onto the air-side end of the anchor element 12 if this work is not done by divers. A possible cavity behind the sheet pile wall 1 can in turn be pressed with grout 32 through openings in the cross member 19 and the anchor head can be sealed in this way.
  • the holding device After the connection between the holding device 2 and the sheet pile wall has been released, the holding device is recovered. If the anchor is a tie rod, the anchor element 12 can be tensioned after the compression body 31 has completely hardened.
  • the holding device 2 consists of a housing 26 which is at least partially open to the sheet pile wall 1 and in which four tongs 7 which can be actuated by hydraulic cylinder-piston units 8 are provided.
  • the position of the outer legs of the pliers 7 is adapted to the slope of the individual sheet piles of the sheet pile wall 1 and roughened or serrated on their inner surfaces in order to achieve good contact with the sheet pile wall 1.
  • the pliers 7 only serve to fix the holding device 2 to the sheet pile wall 1; their weight and that of the carriage 10 is carried by the tension members 9, which lead to corresponding anchoring on the surface of the site.
  • the holding device 2 is equipped on its side facing the sheet pile wall with the profile of the sheet pile adapted guide bodies 24, which facilitate the centering of the holding device and support the transmission of the torque occurring during drilling to the sheet pile wall 1 or relieve the pliers 7.
  • the mount 10 is connected via a joint 3 with a horizontal axis running parallel to the sheet pile wall 1 to a bracket 27, which in turn is mounted on the housing 26 via a joint 4 with an axis running in a vertical plane perpendicular to the drilling axis 11.
  • the mount 10 can be pivoted in the vertical direction (arrow 29 in FIG. 4) by means of the joint 3 and in the horizontal direction (arrow 30 in FIG. 5) by means of the joint 4.
  • the pivoting of the carriage 10 in the vertical direction (arrow 29) takes place, as already described, by means of the cable 13; for pivoting in the horizontal direction (arrow 30), a cylinder-piston unit 6 is arranged on the bracket 27, which is supported against the housing 26 of the holding device 2.
  • the extension of the axis of the joint 4 runs through the center of the opening 28 created in the sheet pile wall 1 and intersects the drilling axis 11 there (FIG. 4). This makes it possible to make several holes with different horizontal angles through the same opening 28, for example when a hole has to be abandoned due to an obstacle in the course of the drilling axis.
  • FIGS. 6 to 8 Another exemplary embodiment for the articulated mounting of the mount on the holding device 2 is shown in FIGS. 6 to 8.
  • the ball joint 34 consists of a ball 36 fastened to the mount 10 via a pin 35, which ball 36 can be rotated in a pan 37 designed as a partially hollow ball.
  • the pan 37 is mounted on a link 38 which is articulated at both ends to cylinder-piston units 39; the cylinder-piston units 39 are in turn attached to the housing 26 of the holding device 2.
  • the cylinder-piston units 39 serve to support the pressure of the carriage 10, while a pivoting movement in the horizontal direction is brought about by a cylinder-piston unit 6 '.
  • the movement possibilities of the carriage in the vertical and horizontal directions are again indicated by arrows 29 and 30, respectively.

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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)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Piles And Underground Anchors (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Foundations (AREA)
  • Revetment (AREA)

Abstract

For the installation of an anchor member at a location below a water level through a retaining wall into a soil formation for supporting the wall, a drill mount is pivotally mounted about a horizontal axis on a retaining member secured to the wall. The drill mount can be pivoted between a drilling position inclined downwardly toward the wall and an upwardly extending loading position where the drill mount is accessible above the water level. A cable line secured to the drill mount pivots it between the drilling and loading positions. A drilling machine is displaceable on a sliding carriage along the drill mount. A drilling tool inserted into the drilling machine is used to drill an opening through the wall. Subsequently the drilling tool is replaced by a borehole pipe and the pipe is driven through the wall opening into the soil formation. With the borehole pipe inserted, an anchor member can be placed into the pipe and by withdrawing the pipe and grouting around the anchor member at the same time, the installation of the anchor member can be completed.

Description

Die Erfindung betrifft ein Verfahren sowie iene Vorrichtung zum Setzen eines Zug- oder Druckankers mit einem stab-, draht- oder rohrförmigen Ankerelement unterhalb eines Wasserspiegels zum Verankern einer Spundwand, Schlitzwand, Kaimauer oder dergleichen, wobei zunächst an der Spundwand in Höhe der herzustellenden Bohrung eine Haltevorrichtung für eine Bohrlafette mit einer Unterwasserbohrmaschine befestigt, anschließend die Spundwand durchbohrt und sodann das Ankerelement eingebracht und verankert wird (vgl. DE-C 3 122032).The invention relates to a method and a device for setting a tension or pressure anchor with a rod, wire or tubular anchor element below a water level for anchoring a sheet pile wall, diaphragm wall, quay wall or the like, with a first on the sheet pile wall at the level of the bore to be produced Holding device for a drill carriage attached with an underwater drilling machine, then pierced the sheet pile wall and then the anchor element is inserted and anchored (see. DE-C 3 122032).

Eine bekannte Vorrichtung dieser Art dient zum Rammen eines Ankerpfahles durch eine Spundwand. Bei dieser Vorrichtung besteht die Haltevorrichtung aus einer Grundplatte, die am Ende der Bohrlafette entsprechend der gewünschten Bohrrichtung schräg, vorzugsweise unter einem Winkel von 45 Grad zu dieser angeordnet und fest mit der Bohrlafette verbunden ist (DE-C 31 22 032). Diese Vorrichtung muß durch Taucher an der Spundwand befestigt werden; die Bedienung der Bohrmaschine erfolgt von oberhalb der Wasseroberfläche über eine Steuereinheit, die über Schlauchleitungen mit der Bohrmaschine verbunden ist. Mit Hilfe dieser Vorrichtung wird zunächst mittels eines rohrförmigen Bohrers die Spundwand durchbohrt; der Bohrer verbleibt in der Spundwand und dient als Führungshilfe beim Rammen des Ankerpfahles durch die Spundwand hindurch.A known device of this type is used to ram an anchor pole through a sheet pile wall. In this device, the holding device consists of a base plate, which is arranged obliquely at the end of the drill carriage in accordance with the desired drilling direction, preferably at an angle of 45 degrees thereto, and is fixedly connected to the drill carriage (DE-C 31 22 032). This device must be attached to the sheet pile by divers; The drilling machine is operated from above the water surface via a control unit which is connected to the drilling machine via hose lines. With the help of this device, the sheet pile wall is first pierced by means of a tubular drill; the drill remains in the sheet pile and serves as a guide when ramming the anchor pile through the sheet pile.

Nachteilig bei diesem bekannten Verfahren und der Vorrichtung ist, daß eine Reihe von Arbeiten nur von Tauchern ausgeführt werden kann, ferner daß der Bohrer verloren ist und daß das Rammen des Ankerpfahies, abgesehen von der Führung durch das kurze Bohrrohr ohne weitere Führung und damit ohne Kontrollmöglichkeit erfolgt. Falls der Ankerpfahl beim Einrammen auf ein Hindernis treffen sollte, muß die Spundwand von neuem durchbohrt werden.A disadvantage of this known method and the device is that a number of jobs can only be carried out by divers, furthermore that the drill is lost and that the ramming of the anchor pole, apart from the guidance through the short drill pipe, does not require any further guidance and therefore no control he follows. If the anchor pile encounters an obstacle when ramming in, the sheet pile must be pierced again.

Demgemäß liegt der Erfindung die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zum Setzen eines Zug- oder Druckankers geeignet zu machen und eine zu seiner Durchführung geeignete Vorrichtung anzugeben, wodurch die unter Wasser vorzunehmenden Arbeiten auf ein Minimum beschränkt bzw. ganz vermieden und das gesamte Bohrgerät wiedergewonnen werden.Accordingly, the object of the invention is to make a method of the type mentioned at the outset suitable for setting a tension or pressure anchor and to provide a device suitable for carrying it out, as a result of which the work to be carried out under water is reduced to a minimum or avoided entirely and the whole Drill to be recovered.

Nach der Erfindung wird diese Aufgabe verfahrensmäßig dadurch gelöst, daß nach dem Justieren und Befestigen der Haltevorrichtung mit der Bohrlafette das freie Ende der Lafette durch Verschwenken um ein an der Haltevorrichtung angeordnetes Gelenk mit horizontaler Achse über den Wasserspiegel angehoben, an dem über den Wasserspiegel hinausragenden Ende der Lafette die Bohrmaschine mit einem ersten Bohrer zum Durchbohren der Spundwand montiert und anschließend die Lafette in die Bohrposition abgesenkt und die Spundwand durchbohrt wird, daß nach dem Zurückziehen des ersten Bohrers die Lafette wieder über den Wasserspiegel angehoben und ein Bohrrohr zur Herstellung des Bohrloches in voller Länge montiert, die Lafette wieder in Bohrposition abgesenkt und das Bohrrohr durch die Öffnung in der Spundwand hindurch in den Boden eingetrieben wird und daß nach dem Einführen des Ankerelementes das Bohrrohr unter Verpressen des Hohlraums zwischen Ankerelement und Bohrlochwandung mit erhärtendem Material gezogen und nach erneutem Anheben der Lafette über dem Wasserspiegel demontiert wird. Dabei kann das Ankerelement zugleich mit dem Bohrrohr während der Herstellung des Bohrloches in dieses eingeführt werden.According to the invention, this object is achieved procedurally in that after adjusting and attaching the holding device with the drill carriage, the free end of the carriage is raised by pivoting about a joint arranged on the holding device with a horizontal axis above the water level, at the end projecting above the water level the gun mount the drill with a first drill for drilling through the sheet pile and then the gun lowered into the drilling position and the sheet pile is pierced, that after the first drill has been withdrawn, the gun mount is raised again above the water level and a drill pipe for producing the borehole in full Mounted length, the carriage lowered back into the drilling position and the drill pipe is driven into the ground through the opening in the sheet pile wall and that after the insertion of the anchor element, the drill pipe with compression of the cavity between the anchor element and the borehole wall with hardening material ial pulled and disassembled after lifting the carriage above the water level. The anchor element can be inserted into the drill pipe at the same time as the drill hole is being made.

Die Haltevorrichtung wird zweckmäßig an Zuggliedern, z.B. Gewindestäben, Seilen oder dergleichen hängend gehalten und justiert sowie zweckmäßig an der Spundwand klemmend befestigt. Auch die Lafette kann mittels eines Seilzuges angehoben und abgesenkt werden.The holding device is expediently attached to tension members, e.g. Threaded rods, ropes or the like are held and adjusted in a hanging manner and appropriately fastened by clamping to the sheet pile wall. The carriage can also be raised and lowered using a cable.

Schließlich ist es möglich, nach der Demontage des Bohrrohres an die Bohrmaschine eine Haltetraverse und gegebenenfalls eine Ankermutter anzusetzen und nach erneutem Absenken der Lafette mittels der Bohrmaschine auf das Ankerelement aufzusetzen und zu dessen Verankerung an diesem zu befestigen.Finally, after dismantling the drill pipe to the drilling machine, it is possible to attach a holding cross arm and, if necessary, an anchor nut, and after lowering the carriage again by means of the drilling machine, to attach it to the anchor element and to fasten it to the anchor element.

Der Vorteil des erfindungsgemäßen Verfahrens besteht vor allem darin, daß das Montieren der Bohrmaschine, des Bohrrohres, des Ankerelementes sowie gegebenenfalls einer Haltetraverse und einer Ankermutter bei hochgeklappter Lafette oberhalb des Wasserspiegels von Land aus erfolgen und die Lafette in einfacher Weise mit Hilfe eines Seilzuges in die Bohrposition abgesenkt werden kann. Auch das Halten und Justieren der Haltevorrichtung sowie deren Befestigung an der Spundwand können über Seilzüge sowie entsprechende Steuergeräte von Land aus erfolgen. Da die Länge der Bohrlafette größer ist als die Länge des Bohrrohres bzw. des Ankerelementes, kann nicht nur auf das sonst notwendige schußweise Einbringen von Bohrrohr und Ankerelement verzichtet, sondern gegebenenfalls sogar das Ankerelement von vornherein in das Bohrrohr eingelegt und gemeinsam mit diesem in das Erdreich eingedreht werden.The advantage of the method according to the invention is above all that the drilling machine, the drill pipe, the anchor element and, if appropriate, a holding crossmember and an anchor nut are mounted from land when the mount is folded up above the water level, and the mount is carried out in a simple manner using a cable into the Drilling position can be lowered. The holding and adjusting of the holding device and its attachment to the sheet pile wall can also be carried out from land using cable pulls and corresponding control devices. Since the length of the drill carriage is greater than the length of the drill pipe or anchor element, it is not only possible to dispense with the otherwise necessary insertion of the drill pipe and anchor element, but possibly even insert the anchor element into the drill pipe from the outset and together with it into the ground be screwed in.

Eine zur Durchführung des erfindungsgemäßen Verfahrens besonders geeignete Vorrichtung mit einer gegenüber einer Spundwand oder dergleichen justierbaren und an dieser anbringbaren Haltevorrichtung und einer daran befestigten Bohrlafette mit Führungen für eine Bohrmaschine sowie einem Bohrer und/oder einem Bohrrohr zeichnet sich dadurch aus, daß die auf die volle Länge des Bohrrohrs bzw. des Ankerelements dimensionierte Lafette an der Haltevorrichtung um ein Gelenk mit horizontaler, parallel zur Spundwand verlaufender Achse schwenkbar gelagert und mittels eines Seilzuges von Land aus heb- und senkbar ist.A device which is particularly suitable for carrying out the method according to the invention, with a holding device which is adjustable and attachable to a sheet pile wall or the like, and a drill mount attached to it, with guides for a drilling machine and a drill and / or a drill pipe, is distinguished by the fact that it is fully loaded The length of the drill pipe or the anchor element dimensioned mount on the holding device can be pivoted about a joint with a horizontal axis running parallel to the sheet pile wall and can be raised and lowered from land by means of a cable pull.

Die Haltevorrichtung ist zweckmäßig an Zuggliedem, z.B. Gewindestäben, Seilen oder dergleichen aufgehängt und von Land aus heb- und senkbar sowie vor der Spundwand justierbar.The holding device is useful on tension members, e.g. Threaded rods, ropes or the like are suspended and can be raised and lowered from land and adjusted in front of the sheet pile wall.

Das Gelenk kann lösbar ausgebildet und es können vertikale Führungsschienen vorgesehen sein, entlang deren das untere Ende der Lafette über die Wasseroberfläche angehoben und wieder abgesenkt werden kann.The joint can be designed to be detachable and vertical guide rails can be provided, along which the lower end of the mount can be raised above the water surface and lowered again.

Zur klemmenden Befestigung an der Spundwand kann die Haltevorrichtung mit Zangen versehen sein, die mittels hydraulischer Zylinder-Kolben-Einheiten betätigbar sind. Zur Befestigung der Haltevorrichtung an der Spundwand können aber auch Magnete oder Saugvorrichtungen vorgesehen sein.For clamping attachment to the sheet pile wall, the holding device can be provided with pliers which can be actuated by means of hydraulic cylinder-piston units. Magnets or suction devices can also be provided for fastening the holding device to the sheet pile wall.

Zweckmäßig weist die Haltevorrichtung der Kontur der Spundwand angepaßte Führungskörper auf. Dadurch werden die Zentrierung der Haltevorrichtung an der Spundwand erleichtert, das beim Bohren auftretende Drehmoment aufgenommen und eine Sicherheit gegen Horizontalverschiebungen der Haltevorrichtung erreicht.The holding device expediently has guide bodies adapted to the contour of the sheet pile wall. The centering of the holding device on the sheet pile wall is thereby facilitated, the torque occurring during drilling is absorbed and security against horizontal displacements of the holding device is achieved.

Die Lafette ist an der Haltevorrichtung weiterhin um ein Gelenk mit rechtwinklig zur Bohrachse verlaufender Achse schwenkbar gelagert. Dabei soll die Schwenkachse dieses Lagers zumindest annähemd durch das Zentrum der Öffnung in der Spundwand gehen. Die Anordnung dieses Gelenkes in unmittelbarer Nachbarschaft zur Öffnung der Spundwand und so, daß dessen Achse durch das Zentrum der Öffnung geht und die Bohrlochachse schneidet, hat den Vorteil, daß durch dieselbe Öffnung in der Spundwand mit unterschiedlichen horizontalen Winkeln gebohrt werden kann, wenn beispielsweise in der zunächst gebohrten Richtung ein Hindernis, z.B. ein Felsbrocken, den Bohrvorgang behindert. Dadurch wird eine weitere Schwächung der Spundwand vermieden und der Arbeitsvorgang beschleunigt.The mount is also pivotally mounted on the holding device about an articulation with an axis running at right angles to the drilling axis. The pivot axis of this bearing should at least approximately go through the center of the opening in the sheet pile wall. The arrangement of this joint in the immediate vicinity of the opening of the sheet pile wall and such that its axis passes through the center of the opening and intersects the borehole axis has the advantage that drilling can be carried out through the same opening in the sheet pile wall with different horizontal angles, for example in an obstacle in the direction initially drilled, e.g. a boulder that hinders the drilling process. This prevents further weakening of the sheet pile wall and speeds up the work process.

Schließlich können an der Haltevorrichtung Mittel zum Verschwenken der Lafette um die rechtwinklig zur Bohrachse verlaufende Schwenkachse und zu deren Fixieren in einer bestimmten Position vorgesehen sein. Diese Mittel sind zweckmäßig hydraulische Zylinder-Kolben-Einheiten.Finally, means can be provided on the holding device for pivoting the mount around the pivot axis running at right angles to the drilling axis and for fixing it in a specific position. These means are expediently hydraulic cylinder-piston units.

Zwischen dem Gelenk mit horizontaler Achse und demjenigen mit rechtwinklig zur Bohrachse verlaufender Achse kann eine Verbindungslasche angeordnet sein. Das Gelenk mit horizontaler Achse und das Gelenk mit rechtwinklig zur Bohrachse verlaufender Achse können auch in einem Kugelgelenk vereinigt sein. Schließlich kann die Lafette an der Haltevorrichtung auch kardanisch gelagert sein; in jedem Fall sollen die Schwenkachsen durch das Zentrum der Öffnung der Spundwand gehen.A connecting strap can be arranged between the joint with the horizontal axis and that with the axis running at right angles to the drilling axis. The joint with a horizontal axis and the joint with an axis perpendicular to the drilling axis can also be combined in a ball joint. Finally, the mount can also be gimbaled on the holding device; in any case, the swivel axes should go through the center of the opening of the sheet pile wall.

Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigt

  • Fig. 1 einen schematischen Querschnitt durch eine Spundwand mit einer Vorrichtung nach der Erfindung bei angehobener Lafette,
  • Fig. 2 eine der Fig. 1 entsprechende Darstellung mit in Bohrposition abgesenkter Lafette,
  • Fig. 3 einen Schnitt durch die Spundwand mit dem Ankerkopf im endgültigen Zustand,
  • Fig. 4 einen Vertikalschnitt durch die Haltevorrichtung im Bereich der Spundwand entlang der Linie IV-IV in Fig. 5,
  • Fig. 5 einen Horizontalschnitt durch die Haltevorrichtung entlang der Linie V-V in Fig. 4,
  • Fig. 6 einen der Fig. 5 entsprechenden Horizontalschnitt durch die Haltevorrichtung mit einer anderen Gelenkanordnung zum Verschwenken der Bohrlafette,
  • Fig. 7 ein Detail aus Fig. 6 in größerem Maßstab,
  • Fig. 8 einen Schnitt entlang der Linie VIII-VIII in Fig. 7 und
  • Fig. 9 einen den Fig. 1 und 2 entsprechenden Querschnitt durch eine Spundwand mit einer anderen Ausführungsform der Erfindung.
The invention is explained below with reference to an embodiment shown in the drawing. It shows
  • 1 is a schematic cross section through a sheet pile wall with a device according to the invention with the carriage raised,
  • 2 a representation corresponding to FIG. 1 with the carriage lowered in the drilling position,
  • 3 shows a section through the sheet pile wall with the anchor head in the final state,
  • 4 shows a vertical section through the holding device in the region of the sheet pile wall along the line IV-IV in FIG. 5,
  • 5 shows a horizontal section through the holding device along the line VV in FIG. 4,
  • 6 a horizontal section corresponding to FIG. 5 through the holding device with another joint arrangement for pivoting the drill carriage,
  • 7 shows a detail from FIG. 6 on a larger scale,
  • Fig. 8 is a section along the line VIII-VIII in Fig. 7 and
  • 9 shows a cross section corresponding to FIGS. 1 and 2 through a sheet pile wall with another embodiment of the invention.

Das Setzen eines Ankers nach dem erfindungsgemäßen Verfahren sowie unter Verwendung der Vorrichtung kann anhand der Fig. 1 und 2 erläutert werden. Dabei wird unterstellt, daß zur nachträglichen Sicherung einer Spundwand 1 durch diese hindurch ein Verpreßanker mit schräger Achse 11 durch die Spundwand 1 in die dahinterliegende Bodenformation 5 eingebracht werden soll. Da der Anker auf seiner gesamten Länge unterhalb des Wasserspiegels 25 liegt, müssen alle dazu. notwendigen Arbeiten unter Wasser ausgeführt werden.The setting of an anchor using the method according to the invention and using the device can be explained with reference to FIGS. 1 and 2. It is assumed that for subsequent securing of a sheet pile wall 1 through this a grout anchor with an inclined axis 11 through the sheet pile wall 1 should be introduced into the ground formation 5 behind it. Since the anchor lies below the water level 25 along its entire length, everyone must do so. necessary work to be carried out under water.

Dabei wird zunächst eine Haltevorrichtung 2 vorbereitet, die von der Wasserseite her an die Spundwand 1 angesetzt werden kann. An dieser Haltevorrichtung 2, die anhand der Fig. 4 und 5 noch näher erläutert werden wird, wird um ein Gelenk 3 mit horizontaler, parallel zur Spundwand 1 verlaufender Achse eine Bohrlafette 10 schwenkbar gelagert. Die Länge der Lafette 10 ist so gewählt, daß sie das zum Niederbringen der Bohrung erforderliche Bohrrohr 17 und das Ankerelement 12 in voller Länge aufnehmen kann.First, a holding device 2 is prepared, which can be attached to the sheet pile wall 1 from the water side. On this holding device 2, which will be explained in more detail with reference to FIGS. 4 and 5, a drill carriage 10 is pivotably mounted about a joint 3 with a horizontal axis running parallel to the sheet pile wall 1. The length of the mount 10 is selected so that it can accommodate the full length of the drill pipe 17 required for drilling the bore and the anchor element 12.

Wie aus Fig. 1 entnommen werden kann, wird die Haltevorrichtung 2 mit der Lafette 10 mit Hilfe von Zuggliedern 9, z.B. Gewindestäben, von der Geländeoberfläche aus auf die gewünschte Tiefe abgesenkt und an der Spundwand 1 befestigt. Die Lafette 10 wird dabei an ihrem oberen Ende mittels eines Seilzuges 13 gehalten, der zu einem teleskopierbaren Ausleger 18 an einem Kranfahrzeug 33 führt. In dieser Lage der Lafette 10 wird von Land aus die Bohrmaschine 14 montiert, die mittels eines Schlittens 15 entlang der Lafette 10 bewegbar ist.As can be seen from Fig. 1, the holding device 2 with the mount 10 by means of tension members 9, e.g. Threaded rods, lowered from the surface of the site to the desired depth and fastened to the sheet pile wall 1. The carriage 10 is held at its upper end by means of a cable 13 which leads to a telescopic boom 18 on a crane vehicle 33. In this position of the carriage 10, the drilling machine 14 is mounted from land, which can be moved along the carriage 10 by means of a carriage 15.

Die Bohrmaschine 14 ist in an sich bekannter Weise ausgebildet; sie besitzt einen Bohrkopf und einen Antriebsmotor. Hinter dem Bohrkopf befindet sich ein Spülkopf mit einem durch den Bohrkopf geführten Gestänge. Der Spülkopf läßt sich unabhängig vom Bohrkopf entlang der Lafette 10 verschieben.The drilling machine 14 is designed in a manner known per se; it has a drill head and a drive motor. Behind the drill head there is a flushing head with a rod that is guided through the drill head. The flushing head can be moved along the carriage 10 independently of the drilling head.

An die Bohrmaschine 14 wird zunächst ein Bohrer 16 angesetzt, mit dem die Spundwand 1 durchbohrt werden kann. Danach wird die Lafette 10 mittels des Seilzuges 13 in die Bohrposition abgelassen; der Bohrer 16 ist damit in der Ankerachse 11 ausgerichtet, die zugleich die Bohrachse bildet. Sodann wird die Bohrmaschine 14 mit dem Bohrer 16 z.B. mittels eines Kettentriebes entlang der Lafette 10 in Richtung auf die Spundwand 1 gezogen, bis der Kopf des Bohrers 16 sich an der Spundwand befindet und diese durchbohrt. Anschließend werden die Bohrmaschine 14 mit dem Bohrer 16 wieder in die Ausgangsposition zurückgezogen, die Lafette um das Gelenk 3 nach oben geschwenkt und der Bohrer 16 von Land aus abgebaut.A drill 16 with which the sheet pile wall 1 can be pierced is first attached to the drilling machine 14. Then the carriage 10 is lowered into the drilling position by means of the cable 13; the drill 16 is thus aligned in the anchor axis 11, which also forms the drilling axis. Then the drill 14 with the drill 16 is e.g. pulled by means of a chain drive along the carriage 10 in the direction of the sheet pile wall 1 until the head of the drill 16 is on the sheet pile wall and pierces it. Then the drill 14 with the drill 16 is pulled back into the starting position, the mount is pivoted upwards about the joint 3 and the drill 16 is dismantled from the ground.

Auf die Lafette 10 wird sodann das eigentliche Bohrrohr 17 in voller Länge aufgelegt, ausgerichtet und an die Bohrmaschine 14 angeschlossen. Nach erneutem Ablassen der Lafette 10 in die Bohrposition wird das Bohrrohr 17 mit Hilfe der Bohrmaschine 14 durch die zuvor in der Spundwand 1 erzeugte Öffnung 28 hindurch in die Bodenformation 5 bis auf Solltiefe eingetrieben. Danach wird der Kopf der Bohrmaschine 14 vom Bohrrohr 17 gelöst, die Bohrmaschine 14 wieder in die Ausgangsposition zurückgezogen und die Lafette 10 erneut nach oben geschwenkt.The actual is then on the carriage 10 Drilled tube 17 placed in full length, aligned and connected to the drill 14. After the carriage 10 has been lowered again into the drilling position, the drill pipe 17 is driven with the aid of the drilling machine 14 through the opening 28 previously created in the sheet pile wall 1 into the soil formation 5 to the desired depth. Then the head of the drilling machine 14 is detached from the drilling tube 17, the drilling machine 14 is pulled back into the starting position and the mount 10 is pivoted upwards again.

Von der Geländeoberfläche aus wird nun ein Ankerelement 12, z.B. ein Ankerstab, auf die Lafette 10 aufgelegt und ausgerichtet. Am bodenseitigen Ende des Ankerelements 12 befindet sich eine Verkralleinrichtung 20. Weiterhin sind an dem Ankerelement 12 ein Dichtteller 22 befestigt, der den Hohlraum zwischen dem Ankerelement und dem Bohrrohr 17 dichtet, sowie eine Verpreßleitung 21, die durch den Dichtteller 22 hindurchgeführt ist. Das Ankerelement 12 wird durch das Gestänge des Spülkopfes gehalten. Nach erneutem Ablassen der Lafette 10 in die Bohrposition wird das Ankerelement 12 mittels der Bohrmaschine 14 in das Bohrrohr 17 eingeführt, bis es seine Sollage erreicht hat.An anchor element 12, e.g. an anchor rod, placed on the carriage 10 and aligned. At the bottom end of the anchor element 12 there is a claw device 20. Furthermore, a sealing plate 22 is fastened to the anchor element 12, which seals the cavity between the anchor element and the drill pipe 17, and a compression line 21, which is passed through the sealing plate 22. The anchor element 12 is held by the linkage of the flushing head. After the carriage 10 has been lowered again into the drilling position, the anchor element 12 is inserted into the drill pipe 17 by means of the drilling machine 14 until it has reached its desired position.

Da die Länge der Lafette 10 größer ist als die Länge des Ankerelements 12, kann dieses schon vorher in das Bohrrohr 17 eingelegt und gleichzeitig mit diesem in die Bodenformation 5 eingedreht werden.Since the length of the mount 10 is greater than the length of the anchor element 12, it can be inserted into the drill pipe 17 beforehand and at the same time screwed into the bottom formation 5.

Danach wird der Kopf der Bohrmaschine 14 wieder an das Bohrrohr 17 angekoppelt, um dieses ziehen zu können. Diese Situation ist in Fig. 2 dargestellt. Das Bohrrohr 17 wird dabei zunächst nur um eine kurze Strecke zurückgefahren, während der Spülkopf, der den Anker 12 hält, stehen bleibt. Nach dem Aktivieren der Verkralleinrichtung 20 sitzt das Ankerelement 12 fest im Boden. Unter ständigem Ziehen des Bohrrohrs 17 wird dann über die Verpreßleitung 21 der Hohlraum zwischen dem Ankerelement 12 und der Bohrlochwand stetig mit einem Verpreßgut, z.B. Zementmörtel so lange gefüllt, bis dieses den Dichtteller 22 erreicht hat. Das Verpreßgut bildet so einen Verpreßkörper 31. Sobald die Bohrmaschine 14 mit dem Bohrrohr 17 die Ausgangsposition wieder erreicht hat, werden die Verpreßleitung 21 am Anker 12 gelöst, die Lafette 10 mittels des Seilzugs 13 hochgeschwenkt und das Bohrrohr 17 abgebaut.The head of the drilling machine 14 is then coupled again to the drilling pipe 17 in order to be able to pull it. This situation is shown in Fig. 2. The drill pipe 17 is initially moved back only a short distance while the flushing head, which holds the armature 12, remains standing. After activating the claw device 20, the anchor element 12 sits firmly in the ground. With constant pulling of the drill pipe 17, the cavity between the anchor element 12 and the borehole wall is then continuously pressed with a grout, e.g. Cement mortar filled until it has reached the sealing plate 22. The grout thus forms a grouting body 31. As soon as the drilling machine 14 with the drilling pipe 17 has reached the starting position again, the grouting line 21 on the armature 12 is loosened, the mount 10 is pivoted up by means of the cable 13 and the drilling pipe 17 is dismantled.

An dem Kopf der Bohrmaschine 14 kann nun eine Traverse 19, z.B. in Form eines Betonfertigbauteils befestigt, ausgerichtet und justiert werden. Nach erneutem Ablassen der Lafette 10 in die Bohrposition kann diese Traverse 19 mittels der Bohrmaschine in Richtung des Ankerelements 12 gefahren und über dieses geschoben werden. Die Traverse 19 reicht so eine gewisse Strecke in die Öffnung 28 in der Spundwand 1 hinein (Fig. 3).At the head of the drilling machine 14, a traverse 19, e.g. fixed, aligned and adjusted in the form of a prefabricated concrete component. After lowering the carriage 10 again into the drilling position, this cross member 19 can be moved in the direction of the anchor element 12 by means of the drilling machine and pushed over it. The cross member 19 thus extends a certain distance into the opening 28 in the sheet pile wall 1 (FIG. 3).

Nach dem Lösen der Verbindung zwischen der Traverse 19 und der Bohrmaschine 14 wird letztere wieder in ihre Ausgangsposition zurückgefahren. Danach kann in gleicher Weise eine Ankermutter 23 eingebracht und auf das luftseitige Ende des Ankerelements 12 aufgeschraubt werden, falls diese Arbeit nicht von Tauchern erledigt wird. Durch Öffnungen in der Traverse 19 kann ein eventueller Hohlraum hinter der Spundwand 1 wiederum mit Verpreßgut 32 verpreßt und der Ankerkopf auf diese Weise abgedichtet werden.After loosening the connection between the crossmember 19 and the drilling machine 14, the drilling machine 14 is moved back into its starting position. An anchor nut 23 can then be introduced in the same way and screwed onto the air-side end of the anchor element 12 if this work is not done by divers. A possible cavity behind the sheet pile wall 1 can in turn be pressed with grout 32 through openings in the cross member 19 and the anchor head can be sealed in this way.

Nach dem Lösen der Verbindung zwischen der Haltevorrichtung 2 und der Spundwand wird die Haltevorrichtung geborgen. Sofern es sich bei dem Anker um einen Zuganker handelt, kann das Ankerelement 12 nach dem vollständigen Erhärten des Verpreßkörpers 31 gespannt werden.After the connection between the holding device 2 and the sheet pile wall has been released, the holding device is recovered. If the anchor is a tie rod, the anchor element 12 can be tensioned after the compression body 31 has completely hardened.

Wenn aus irgendwelchen Gründen die Lafette 10 in ihrer vollen Länge über den Wasserspiegel gehoben werden soll, dann ist es möglich, zwischen der Haltevorrichtung 2 und der Verankerung der diese tragenden Zugglieder 9 am Kopf der Spundwand Führungsschienen 40 anzuordnen, entlang deren das untere Ende der Lafette 10 nach Lösen des Gelenks 3 nach oben gezogen werden kann (Fig. 9).If for any reason the carriage 10 is to be raised to its full length above the water level, then it is possible to arrange guide rails 40 between the holding device 2 and the anchoring of the tension members 9 carrying it at the head of the sheet pile wall, along the lower end of which the carriage 10 can be pulled up after loosening the joint 3 (Fig. 9).

Ein Ausführungsbeispiel für die Haltevorrichtung 2 ist in den Fig. 4 und 5 näher dargestellt. Die Haltevorrichtung 2 besteht aus einem zur Spundwand 1 zumindest teilweise offenen Gehäuse 26, in dem vier über hydraulische Zylinder-Kolben-Einheiten 8 betätigbare Zangen 7 vorgesehen sind. Die äußeren Schenkel der Zangen 7 sind in ihrer Lage der Schräge der einzelnen Spundbohlen der Spundwand 1 angepaßt und an ihren Innenflächen aufgerauht oder gezahnt, um einen guten Kontakt mit der Spundwand 1 zu erzielen. Die Zangen 7 dienen nur der Fixierung der Haltevorrichtung 2 an der Spundwand 1; ihr Gewicht und dasjenige der Lafette 10 wird durch die Zugglieder 9 getragen, die zu entsprechenden Verankerungen an der Geländeoberfläche führen.An embodiment of the holding device 2 is shown in more detail in FIGS. 4 and 5. The holding device 2 consists of a housing 26 which is at least partially open to the sheet pile wall 1 and in which four tongs 7 which can be actuated by hydraulic cylinder-piston units 8 are provided. The position of the outer legs of the pliers 7 is adapted to the slope of the individual sheet piles of the sheet pile wall 1 and roughened or serrated on their inner surfaces in order to achieve good contact with the sheet pile wall 1. The pliers 7 only serve to fix the holding device 2 to the sheet pile wall 1; their weight and that of the carriage 10 is carried by the tension members 9, which lead to corresponding anchoring on the surface of the site.

Die Haltevorrichtung 2 ist an ihrer der Spundwand zugekehrten Seite mit dem Profil der Spundwand angepaßten Führungskörpern 24 ausgestattet, welche die Zentrierung der Haltevorrichtung erleichtern sowie die Übertragung des beim Bohren auftretenden Drehmoments auf die Spundwand 1 unterstützen bzw. die Zangen 7 entlasten.The holding device 2 is equipped on its side facing the sheet pile wall with the profile of the sheet pile adapted guide bodies 24, which facilitate the centering of the holding device and support the transmission of the torque occurring during drilling to the sheet pile wall 1 or relieve the pliers 7.

Die Lafette 10 ist über ein Gelenk 3 mit horizontaler, parallel zur Spundwand 1 verlaufender Achse mit einer Lasche 27 verbunden, die ihrerseits über ein Gelenk 4 mit in einer vertikalen Ebene rechtwinklig zur Bohrachse 11 verlaufender Achse an dem Gehäuse 26 gelagert ist. Mittels des Gelenks 3 kann die Lafette 10 in vertikaler Richtung (Pfeil 29 in Fig. 4) und mittels des Gelenks 4 in horizontaler Richtung (Pfeil 30 in Fig. 5) verschwenkt werden. Das Verschwenken der Lafette 10 in vertikaler Richtung (Pfeil 29) erfolgt, wie bereits beschrieben, mittels des Seilzuges 13; zum Verschwenken in horizontaler Richtung (Pfeil 30) ist an der Lasche 27 eine Zylinder-Kolben-Einheit 6 angeordnet, die sich gegen das Gehäuse 26 der Haltevorrichtung 2 abstützt.The mount 10 is connected via a joint 3 with a horizontal axis running parallel to the sheet pile wall 1 to a bracket 27, which in turn is mounted on the housing 26 via a joint 4 with an axis running in a vertical plane perpendicular to the drilling axis 11. The mount 10 can be pivoted in the vertical direction (arrow 29 in FIG. 4) by means of the joint 3 and in the horizontal direction (arrow 30 in FIG. 5) by means of the joint 4. The pivoting of the carriage 10 in the vertical direction (arrow 29) takes place, as already described, by means of the cable 13; for pivoting in the horizontal direction (arrow 30), a cylinder-piston unit 6 is arranged on the bracket 27, which is supported against the housing 26 of the holding device 2.

Die Verlängerung der Achse des Gelenks 4 verläuft durch das Zentrum der in der Spundwand 1 erzeugten Öffnung 28 und schneidet dort die Bohrachse 11 (Fig. 4). Dadurch ist es möglich, auch mehrere Bohrungen mit unterschiedlichem Horizontalwinkel durch dieselbe Öffnung 28 einzubringen, beispielsweise dann, wenn eine Bohrung infolge eines Hindernisses im Verlauf der Bohrachse aufgegeben werden muß.The extension of the axis of the joint 4 runs through the center of the opening 28 created in the sheet pile wall 1 and intersects the drilling axis 11 there (FIG. 4). This makes it possible to make several holes with different horizontal angles through the same opening 28, for example when a hole has to be abandoned due to an obstacle in the course of the drilling axis.

Ein weiteres Ausführungsbeispiel für die gelenkige Lagerung der Lafette an der Haltevorrichtung 2 ist in den Fig. 6 bis 8 dargestellt. Hier sind die beiden, durch die Gelenke 3 und 4 gegebenen Bewegungsmöglichkeiten der Lafette 10 in vertikaler und horizontaler Achse in einem Kugelgelenk 34 zusammengefaßt. Das Kugelgelenk 34 besteht aus einer über einen Zapfen 35 an der Lafette 10 befestigten Kugel 36, die in einer als teilweise Hohlkugel ausgebildeten Pfanne 37 drehbar ist. Die Pfanne 37 ist an einem Lenker 38 gelagert, der an beiden Enden gelenkig an Zylinder-Kolben-Einheiten 39 angeschlossen ist; die Zylinder-Kolben-Einheiten 39 sind ihrerseits an dem Gehäuse 26 der Haltevorrichtung 2 befestigt. Die Zylinder-Kolben-Einheiten 39 dienen der Druckabstützung der Lafette 10, während eine Schwenkbewegung in horizontaler Richtung durch eine Zylinder-Kolben-Einheit 6' bewirkt wird. Die Bewegungsmöglichkeiten der Lafette in vertikaler und horizontaler Richtung sind wiederum durch Pfeile 29 bzw. 30 angedeutet.Another exemplary embodiment for the articulated mounting of the mount on the holding device 2 is shown in FIGS. 6 to 8. Here, the two possibilities of movement of the mount 10 given by the joints 3 and 4 in the vertical and horizontal axes are combined in a ball joint 34. The ball joint 34 consists of a ball 36 fastened to the mount 10 via a pin 35, which ball 36 can be rotated in a pan 37 designed as a partially hollow ball. The pan 37 is mounted on a link 38 which is articulated at both ends to cylinder-piston units 39; the cylinder-piston units 39 are in turn attached to the housing 26 of the holding device 2. The cylinder-piston units 39 serve to support the pressure of the carriage 10, while a pivoting movement in the horizontal direction is brought about by a cylinder-piston unit 6 '. The movement possibilities of the carriage in the vertical and horizontal directions are again indicated by arrows 29 and 30, respectively.

Claims (21)

1. A method of installing a tension or compression anchor with a rod-like, wire-like or tubular anchor member below a water level for anchoring a sheet- pile wall, a slotted wall, quay wall or the like, wherein firstly a support means for a boring mounting having an underwater boring machine is secured to the sheet-pile wall at the level of the bore to be produced, subsequently a hole is bored through the sheet-pile wall and then the anchor member is introduced and anchored, characterised in that after adjustment and fastening of the support means (2) to the boring mounting (10) the free end of the mounting is raised above the water level (25) by being pivoted about an articulation with a horizontal axis and disposed on the support means, the boring machine (14) with a first bit (16) for boring through the sheet- pile wall (1) is mounted at the end of the mounting (10) protruding above the water level (25) and, subsequently, the mounting (10) is lowered into the boring position and a hole is bored through the sheet-pile wall (1), in that after the first bit (16) has been withdrawn the mounting (10) is again raised above the water level and a bore tube (17) for providing a full- length borehole is installed, the mounting (10) is lowered once more into the boring position and the bore tube (17) is driven through the opening (28) in the sheet-pile wall (1) into the ground (5), and in that, after insertion of the anchor member (12), the bore tube (17) is removed while a hardenable material is injected into the cavity between the anchor member (12) and the borehole wall and is demounted after the mounting (10) has been raised once more above the water level (25).
2. A method according to Claim 1, characterised in that the anchor member (12) is introduced into the borehole together with the bore tube (17) while the borehole is being produced.
3. A method according to Claim 1 or 2, characterised in that the support means (2) is held suspended and is adjusted on tension members (9), e.g. threaded rods, cables or the like.
4. A method according to any one of Claims 1 to 3, characterised in that the support means (2) is secured by clamping to the sheet-pile wall (1).
5. A method according to any one of Claims 1 to 4, characterised in that the mounting (10) is raised and lowered by means of a cable control means.
6. A method according to any one of Claims 1 to 5, characterised in that, after the bore tube (17) has been demounted, a support cross-member (19) and, optionally, an anchor nut (23) is applied to the boring machine (14) which, after the mounting (10) has been lowered once more, is secured to the anchor member (12) by means of the boring machine (14) and are secured to said anchor member (12) so as to anchor the latter.
7. An apparatus for carrying out the method according to Claims 1 to 6, having a support means (2) which is adjustable relative to a sheet-pile wall (1) or the like and can be mounted thereon, and a boring mounting (10) secured thereto and having guide means (24) for a boring machine (14), a bit (16) and/or a bore tube (17), characterised in that the mounting (10), the dimensions of which correspond to the full length of the bore tube (17) or of the anchor member (12), is mounted on the support means (2) to pivot about an articulation (3) with a horizontal axis extending parallel to the sheet-pile wall (1) and can be raised and lowered from the land by means of a cable control means (13).
8. An apparatus according to Claim 7, characterised in that the support means (2) is suspended on tension members (9), e.g. cables, and can be raised and lowered from the land, and can be adjusted forwardly of the sheet-pile wall (1).
9. An apparatus according to Claim 7 or 8, characterised in that the articulation (3) is releasable and in that vertical guide rails (40) are provided, along which the lower end of the mounting can be raised above the surface of the water and then lowered.
10. An apparatus according to any one of Claims 7 to 9, characterised in that the support means (2) is provided with clamps (7) for effecting a clamped fastening to the sheetpile wall.
11. An apparatus according to Claim 10, characterised in that hydraulic cylinder-piston means (8) are provided to operate the clamps (7).
12. An apparatus according to any one of Claims 7 to 9, characterised in that the support means (2) is provided with magnets for effecting a connection with the sheet-pile wall.
13. An apparatus according to any one of Claims 7 to 9, characterised in that the support means (2) is provided with suction means for effecting a connection with the sheet-pile wall.
14. An apparatus according to any one of Claims 7 to 13, characterised in that the support means (2) has guide members (24) corresponding to the contour of the sheet-pile wall (1).
15. An apparatus according to any one of Claims 7 to 14, characterised in that the mounting (10) is pivotably mounted on the support means (2) about an articulation (4) with an axis extending at right angles to the bore axis (11).
16. An apparatus according to Claim 15, characterised in that the axis of the articulation (4) extends at least approximately through the centre of the opening (28) in the sheet-pile wall (1).
17. An apparatus according to Claims 15 and 16, characterised in that the support means (2) is provided with means for pivoting the mounting (10) about the axis extending it right angles to the bore axis (11) and for locating it in a given position.
18. An apparatus according to Claim 17, characterised in that hydraulic cylinder-piston means (6, 6') are provided respectively for pivoting and locating the mounting (10).
19. An apparatus according to any one of Claims 7 to 18, characterised in that a connecting strap (27) is disposed between the articulation (3) having a horizontal axis and the articulation (4) having an axis extending at right angles to the bore axis (11).
20. An apparatus according to any one of Claims 7 to 18, characterised in that the articulation having a horizontal axis and the articulation having an axis extending at right angles to the bore axis are combined to form a ball-and-socket joint (34).
21. An apparatus according to any one of Claims 7 to 20, characterised in that the mounting (10) is mounted on gimbals on the support means (2).
EP86113464A 1985-10-03 1986-10-01 Method for placing traction or compression anchors beneath the water level for anchoring a sheet pile wall or the like Expired EP0217366B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86113464T ATE48162T1 (en) 1985-10-03 1986-10-01 PROCEDURE FOR PLACING A TENSION OR PRESSURE ANCHOR BELOW A WATER LEVEL FOR ANCHORING A SHEET PILING OR LIKE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853535319 DE3535319A1 (en) 1985-10-03 1985-10-03 METHOD AND DEVICE FOR ANCHORING AT LEAST PARTLY UNDER WATER-SIDED BALLS
DE3535319 1985-10-03

Publications (3)

Publication Number Publication Date
EP0217366A2 EP0217366A2 (en) 1987-04-08
EP0217366A3 EP0217366A3 (en) 1988-01-20
EP0217366B1 true EP0217366B1 (en) 1989-11-23

Family

ID=6282665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113464A Expired EP0217366B1 (en) 1985-10-03 1986-10-01 Method for placing traction or compression anchors beneath the water level for anchoring a sheet pile wall or the like

Country Status (8)

Country Link
US (1) US4711604A (en)
EP (1) EP0217366B1 (en)
JP (1) JPS62174417A (en)
AT (1) ATE48162T1 (en)
CA (1) CA1255917A (en)
DE (2) DE3535319A1 (en)
ES (1) ES2012331B3 (en)
GR (1) GR3000355T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0491964B1 (en) * 1990-07-24 1995-03-15 Sunearth Co., Ltd. Apparatus for injecting soil conditioning fluid
DE19525590C2 (en) * 1995-07-13 1999-04-29 Zueblin Ag Construction of an excavation pit with anchoring below the water table
DE19527608C2 (en) * 1995-07-28 1999-02-11 Bauer Spezialtiefbau Underwater composite piles
US7517175B2 (en) * 2003-07-11 2009-04-14 Timmerman James E Method for maintaining seawalls
US6908258B2 (en) * 2003-07-11 2005-06-21 James E. Timmerman Methods and apparatus for maintaining seawalls
WO2008002308A2 (en) * 2006-06-28 2008-01-03 Timmerman James E Methods, systems and apparatus for maintaining seawalls
IT1392228B1 (en) * 2008-12-03 2012-02-22 Melegari PROCEDURE FOR THE CONSOLIDATION AND / OR REINFORCEMENT OF PORT BANKS
CA2957748C (en) 2017-02-13 2018-05-01 Lyle Kenneth Adams Rock bolt seal
CN109778789B (en) * 2018-04-04 2020-08-25 水利部交通运输部国家能源局南京水利科学研究院 Concrete panel rock-fill dam panel goaf underwater repair system
US11072517B2 (en) 2019-04-11 2021-07-27 Kundel Industries, Inc. Jib crane with tension frame and compression support
CN111425231B (en) * 2020-03-31 2021-03-26 中国矿业大学 Long and short anchor cable coordinated energy absorption yielding device and construction method
US20220170230A1 (en) * 2020-11-30 2022-06-02 James Timmerman Tieback installation apparatus and system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1267129A (en) * 1917-05-19 1918-05-21 Robert H F Sewall Apparatus for driving piles.
US2865180A (en) * 1953-12-23 1958-12-23 Great Lakes Dredge & Dock Comp Sheet piling wall structure
FR1115912A (en) * 1954-01-29 1956-05-02 Union Siderurgique Lorraine Anchoring device for tie rods
US3134234A (en) * 1959-11-12 1964-05-26 Jersey Prod Res Co Apparatus for installing piling
BE887709A (en) * 1981-02-27 1981-06-15 Camar P V B A WERKWIJZE MACHINE VOOR HET AANBRENGEN VAN EEN ELEMENT DOORHEEN EEN MUUR ONDER DE BESCHERMING VAN EEN SAS
DE3122032C2 (en) * 1981-05-30 1984-10-31 Philipp Holzmann Ag, 6000 Frankfurt Process for the subsequent anchoring of sheet pile walls, as well as a mounting device for a drilling device and anchor pile for carrying out the process
US4480945A (en) * 1982-04-20 1984-11-06 Schnabel Foundation Company Method of reinforcing an existing earth supporting wall
US4499698A (en) * 1983-01-31 1985-02-19 A. B. Chance Company Method and apparatus for anchoring retaining walls and the like, and installation therefor

Also Published As

Publication number Publication date
US4711604A (en) 1987-12-08
ATE48162T1 (en) 1989-12-15
DE3535319A1 (en) 1987-04-09
GR3000355T3 (en) 1991-06-07
ES2012331B3 (en) 1990-03-16
EP0217366A2 (en) 1987-04-08
EP0217366A3 (en) 1988-01-20
DE3667080D1 (en) 1989-12-28
JPS62174417A (en) 1987-07-31
CA1255917A (en) 1989-06-20

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