NL2007849C2 - Ground anchor. - Google Patents

Ground anchor. Download PDF

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Publication number
NL2007849C2
NL2007849C2 NL2007849A NL2007849A NL2007849C2 NL 2007849 C2 NL2007849 C2 NL 2007849C2 NL 2007849 A NL2007849 A NL 2007849A NL 2007849 A NL2007849 A NL 2007849A NL 2007849 C2 NL2007849 C2 NL 2007849C2
Authority
NL
Netherlands
Prior art keywords
anchor
assembly
coupling
pulling member
pulling
Prior art date
Application number
NL2007849A
Other languages
Dutch (nl)
Inventor
Johannes Franciscus Karsten
Original Assignee
J F Karsten Beheer B V
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 J F Karsten Beheer B V filed Critical J F Karsten Beheer B V
Priority to NL2007849A priority Critical patent/NL2007849C2/en
Priority to EP12194034.0A priority patent/EP2597203A1/en
Application granted granted Critical
Publication of NL2007849C2 publication Critical patent/NL2007849C2/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
    • E02D5/80—Ground anchors
    • E02D5/803—Ground anchors with pivotable anchoring members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2207—Sockets or holders for poles or posts not used
    • E04H12/2215—Sockets or holders for poles or posts not used driven into the ground
    • E04H12/223—Sockets or holders for poles or posts not used driven into the ground with movable anchoring elements; with separately driven anchor rods

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Description

Ground Anchor Background 5 The present invention relates to a method for applying a pivoting ground anchor on considerable depth.
US 2003/0121219 A1 relates to an apparatus and method for installing a plate or wing-type pivoting ground anchor. The anchor assembly includes an all thread setting rod which is extended to virtually any length by a series of threaded couplings which 10 can be used to secure excessive lengths of setting rod together.
Using these couplings to obtain a setting rod of any length however is cumbersome and time consumi ng during installation of the ground anchor. In addition, the couplings disturbs the ground around the setting rod which is harmful for the functioning of the ground anchor later on. In addition, the coupling causes additional 15 resistance during application of the ground anchor, which resistance is all the more harmful since it tends to pivot the ground anchor.
US 2008/0282625 A1 discloses in general a pivoting ground anchor, also referred to as earth anchor.
The present invention further relates to a Assembly of a pivoting ground anchor 20 and a tension member.
The present invention further relates to a system for applying a pivoting ground anchor.
Summary of the invention 25
The invention aims to provide a method for applying a pivoting ground anchor on considerable depth which method is less time consuming and cumbersome.
Another object of the invention is to improve an assembly of a pivoting anchor and a tension member.
30 Yet another object of the invention is to provide a method for applying a pivoting ground anchor on considerable depth wherein a problem in the prior art is at least partly solved.
2
Yet another object of the invention is to provide an alternative method for applying a pivoting ground anchor on considerable depth.
According to a first aspect of the invention this is realized with a method for 5 applying a pivoting ground anchor on considerable depth, the anchor comprising; - a first coupling member for temporary coupling the anchor with a driving rod to drive the anchor to the considerable depth; and, - a tension member for coupling the anchor to the object to be anchored, - a second coupling member which fixedly couples the anchor to the tension 10 member such that the anchor pivots when then the tension member is taken in, wherein the tension member is of one piece and has a considerable length for applying the pivoting ground anchor on considerable depth, and wherein the method comprises the step; continuously supplying the tension member to the ground anchor without interruption during driving the ground anchor to the considerable depth.
15 The continuous supplying of the tension member results in a less time consuming and less cumbersome method for applying a pivoting ground anchor on considerable depth. In addition, couplings are no longer needed and do not disturb the ground around the tension member.
It will be clear that the tension member being of one piece essentially means a 20 tension member of one length without any coupling member between tension member parts. It is however conceivable that the tension member has for instance a core and an outside cover.
The tension material may comprise any suitable material for anchoring purposes like e.g. steel, or fibre reinforce plastic.
25
In an embodiment of the method, the length of the tension member exceeds 3 meter, preferably exceeds 6 meter, more preferably exceeds 10 m.
In an embodiment, the method comprises the step supplying the tension member 30 from a bobbin. This makes the method even more less time consuming and less cumbersome.
3
The invention further relates to an assembly of a pivoting ground anchor and a tension member of considerable length for use with the method according to the invention, the anchor comprising; - a first coupling member for temporary coupling the anchor with a 5 driving rod to drive the anchor to the considerable depth; and, - a second coupling member which fixedly couples the anchor to the tension member such that the anchor pivots when the tension member is taken in, wherein the tension member is suitable for coupling the anchor to the object to be 10 anchored, and is of one piece and has a considerable length for applying the pivoting ground anchor on considerable depth.
The tension member is coupled with the anchor for setting the anchor in a known manner and for coupling the object to be anchored with the anchor.
15
In an embodiment of the assembly, the length of the tension member exceeds 3 meter, preferably exceeds 6 meter.
In an embodiment of the assembly, the tension member is of one piece.
20
In an embodiment of the assembly, the tension member is continuous.
In an embodiment of the assembly, the tension member extends without interruption.
25
In an embodiment of the assembly, the entire outside surface of the tension member extends without irregularity for reducing resistance during application of the assembly in the ground.
30 In an embodiment of the assembly the tension member extends from the second coupling member to an object to be anchored without any intermediate coupling members and/or connectors suitable for coupling tension member sections.
4
In an embodiment of the assembly, the entire tension member is provided with fastening thread for coupling the tension wire to the object to be anchored. This is beneficial since during installation of a pivoting anchor, the tension member is first taken in with the anchor, and subsequently taken out to set the anchor. Thus the all 5 threaded tension member is able to be coupled with the object to be anchored under all circumstances with further means known per se like e.g. nut and washer.
In an embodiment of the assembly, the second coupling member is configured such that the second coupling member can withstand loads to the tension member 10 during application of the assembly with vibratory movement. This is beneficial because the loads to the tension member of considerable length during installation of the anchor are much more severe because initially all the tension member is above ground and not dampened by the ground and thus free to vibrate. In addition, it will be clear the second coupling member is able to withstand tension loads and movement that occur in use of 15 the assembly.
In an embodiment of the assembly, the second coupling member comprises a second coupling member body having a body recess wherein an end of the tension member is accommodated with an interference fit.
20
In an embodiment of the assembly, the second coupling member body overlaps with the tension member along its longitudinal axis at least with an overlap of at least 4 mm. This enables having sufficient contact surface between the tension member and the second coupling member.
25
In an embodiment of the assembly, the diameter of the body recess exceeds 2 mm. This even more enables having sufficient contact surface between the tension member and the second coupling member.
30 In an embodiment of the assembly, the ratio of the overlap and the diameter of the body recess exceeds 1, preferably 1,5.
5
The invention further relates to a system for applying a pivoting ground anchor, comprising an assembly according to the invention, and a bobbin with a plurality of tension members coiled up around the bobbin.
5 The invention further relates to a device comprising one or more of the characterising features described in the description and/or shown in the attached drawings.
The invention further relates to a method comprising one or more of the 10 characterising features described in the description and/or shown in the attached drawings.
The various aspects discussed in this patent can be combined in order to provide additional advantageous advantages.
15
Description of the drawings
The invention will be further elucidated referring to an preferred embodiment shown in the drawing wherein shown in: 20 Fig. 1 in side view an assembly according to the invention;
Fig.2 a detail of fig. 1; and,
Fig. 3 an assembly of fig. 1 with a schematically depicted bobbin.
Detailed description of embodiments 25
The invention will be further described in detail referring to an preferred embodiment shown in the figures 1 - 3. In the figure 1 an assembly 15 of a tension member 3 and an anchor 1 is shown. A tension member 3 is known per se and may be a suitable cable or a rod. The anchor 1 is shown in its set position wherein the 30 longitudinal axis 12 of the anchor 1 is substantially transverse with respect to the longitudinal axis 8 of the tension member 3.
6
The anchor 1 comprises a first coupling member 2 for temporary coupling the anchor with an elongate driving member, like a rod, to drive the anchor to the considerable depth. The first coupling member 2 comprises a first coupling member cavity 11 for accommodating an end of the elongate driving member. The first coupling 5 member cavity 11 is here defined by a cavity wall 16. The first coupling member cavity 11 extends along the longitudinal axis 12 of the anchor 1. The first coupling member cavity 11 and the end of the elongate driving member have a loose fit for temporarily coupling the driving device with the anchor 1 and release the end of the elongate driving member from the first coupling member cavity 11 once the desired depth for 10 the anchor 1 has been reached.
The anchor 1 comprises a tension member 3 for coupling the anchor 1 to the object (not shown) to be anchored. The tension member 3 is of one piece and has a considerable length for applying the pivoting ground anchor 3 on considerable depth.
15 Here, the length of the tension member is 6 meter. Other lengths are conceivable, however the length of the tension member is at least 3 meter.
The tension member 3 is continuous, that is extends continuous from the anchor 1 to the object to be anchored. In other words, the tension member 3 extends without interruption. Interruptions may disturb the ground around the tension member 3 which 20 is undesirable.
Here, the entire outside surface 5 of the tension member 3 extends without irregularity for reducing resistance during application of the assembly 15 in the ground.
In this case, the entire tension member 3 is provided with fastening thread (not shown) for coupling the tension member 3 to the object to be anchored.
25
The anchor 1 comprises a second coupling member 4 which fixedly couples the anchor 1 to the tension member 3. Here, the second coupling member 4 has a second coupling member body 6 and a fork portion 9. The fork portion 9 forms in interaction with the anchor 1, an eye joint link in a known manner. The anchor 1 is able to hinge 30 with respect to the tension member 3 around the eye joint link axis 10.
The second coupling member 4 is configured such that the second coupling member 4 can withstand loads to the tension member 3 during application of the assembly 1 into the ground with vibratory movement. The loads to the second coupling 7 member 4 are significantly higher because of the undampened oscillations of the tension member 3 of one piece and having a considerable length for applying the pivoting ground anchor 3 on considerable depth.
The second coupling member 4 comprises a second coupling member body 6 for 5 providing strength to the second coupling member 4. The second coupling member body 6 is provided with a body recess 7. The body recess 7accommodates an end of the tension member 3 with an interference fit for providing the required strength.
The second coupling member body 6 overlaps with the tension member along its longitudinal axis 8 at least with an overlap L0 of at least 4 mm. The diameter D of the 10 body recess exceeds 2 mm. Depending on the load to be anchored, an increased diameter of the body recess 7 and the tension member is conceivable like 20 mm or even more. The ratio of overlap L0 and the diameter D of the body recess 7 L0 /D exceeds 1, preferably exceeds 1,5, even more preferably exceeds 2.
15 When in use the pivoting ground anchor 1 is applied on considerable depth, the following method step is taken: The tension member 3 is continuously supplied to the ground anchor 1 without interruption during driving of the ground anchor 1 to the considerable depth. The tension member 3 may be supplied from a bobbin 17 which is schematically shown in fig. 3. The tension member 3 is then subsequently cut of when 20 the desired depth of the anchor 1 is reached. In that case, the assembly 15 is part of a system for applying a pivoting ground anchor 1 in the ground. The system comprises the bobbin with a plurality of tension members 3 coiled up around the bobbin.
Driving of the ground anchor 1 below the ground level 14 involves hammering 25 and/or vibrating the anchor 1 downwards. A driving device (not shown) is therefore coupled with the anchor 1 by an elongate driving member like a driving rod (not shown). The driving device is coupled with the anchor 1 by means of the first coupling member 2. During driving of the anchor 1, the anchor is in its driving position wherein the longitudinal axis 12 of the anchor 1 is substantially parallel with respect to the 30 longitudinal axis 8 of the tension member 3. In the driving position of the anchor 1, the leading edge 13 of the anchor 1 is substantially directed downwards.
8
It will also be obvious after the above description and drawings are included to illustrate some embodiments of the invention, and not to limit the scope of protection. Starting from this disclosure, many more embodiments will be evident to a skilled person which are within the scope of protection and the essence of this invention and 5 which are obvious combinations of prior art techniques and the disclosure of this patent.

Claims (17)

1. Werkwijze voor het aanbrengen van een kantelbaar grondanker (1) op 5 aanzienlijke diepte, waarbij het anker omvat; - een eerste koppelingsorgaan (2) voor het tijdelijk koppelen van het anker met een aandrijfstang om het anker naar de aanzienlijke diepte voort te bewegen; en, - een trekorgaan (3) voor de koppeling van het anker met het te 10 verankeren object, - een tweede koppelingsorgaan (4) welke het anker zodanig vast verbindt met het trekorgaan dat het anker kantelt wanneer het trekorgaan wordt ingenomen, waarbij het trekorgaan eendelig is en een aanzienlijke lengte (1) heeft voor het 15 aanbrengen van het kantelbaar grondanker op aanzienlijke diepte, en waarbij de werkwijze omvat de stap; continu toevoeren van het trekorgaan aan het grondanker zonder onderbreking gedurende voortbewegen van het grondanker naar de aanzienlijke diepte.Method for arranging a tiltable ground anchor (1) at a considerable depth, wherein the anchor comprises; - a first coupling member (2) for temporarily coupling the anchor with a driving rod to move the anchor to the considerable depth; and, - a pulling member (3) for coupling the anchor to the object to be anchored, - a second coupling member (4) which fixedly connects the anchor to the pulling member such that the anchor tilts when the pulling member is taken, the pulling member is one-piece and has a considerable length (1) for arranging the tiltable ground anchor at a considerable depth, and wherein the method comprises the step; continuously supplying the pulling member to the ground anchor without interruption during advancement of the ground anchor to the considerable depth. 2. Werkwijze volgens conclusie 1, waarbij de lengte (1) van het trekorgaan groter is dan 3 meter, bij voorkeur groter dan 6 meter.Method according to claim 1, wherein the length (1) of the tension member is greater than 3 meters, preferably greater than 6 meters. 3. Werkwijze volgens conclusie 1, omvattend de stap toevoeren van het trekorgaan vanaf een klos (17). 25The method of claim 1, comprising the step of feeding the puller from a spool (17). 25 4. Samenstel van een kantelbaar grondanker en een trekorgaan van aanzienlijke lengte voor gebruik in de werkwijze volgens een voorgaande conclusie 1-3, waarbij het anker omvat; - een eerste koppelingsorgaan (2) voor het tijdelijk koppelen van het 30 anker met een aandrijfstang om het anker naar de aanzienlijke diepte voort te bewegen; en, - een tweede koppelingsorgaan (4) welke het anker zodanig vast verbindt met het trekorgaan dat het anker kantelt wanneer het trekorgaan wordt ingenomen, waarbij het trekorgaan (3) geschikt is voor de koppeling van het anker met het te 5 verankeren object, en eendelig is en een aanzienlijke lengte (1) heeft voor het aanbrengen van het kantelbare grondanker op aanzienlijke diepte.An assembly of a tiltable ground anchor and a pulling member of considerable length for use in the method according to a preceding claim 1-3, wherein the anchor comprises; - a first coupling member (2) for temporarily coupling the anchor with a driving rod to move the anchor to the considerable depth; and, - a second coupling member (4) which firmly connects the anchor to the pulling member such that the anchor tilts when the pulling member is taken, the pulling member (3) being suitable for coupling the anchor to the object to be anchored, and is one-piece and has a considerable length (1) for arranging the tiltable ground anchor at a considerable depth. 5. Samenstel volgens conclusie 4, waarbij de lengte van het trekorgaan groter is dan 3 meter, bij voorkeur groter dan 6 meter.Assembly as claimed in claim 4, wherein the length of the pulling member is greater than 3 meters, preferably greater than 6 meters. 6. Samenstel volgens een voorgaande conclusie 4-5, waarbij het trekorgaan eendelig is.Assembly as claimed in any of the foregoing claims 4-5, wherein the pulling member is one-piece. 7. Samenstel volgens een voorgaande conclusie 4-6, waarbij het trekorgaan 15 continu is.7. Assembly as claimed in any of the foregoing claims 4-6, wherein the pulling member 15 is continuous. 8. Samenstel volgens een voorgaande conclusie 4-7, waarbij het trekorgaan zich zonder onderbreking uitstrekt.Assembly as claimed in any of the foregoing claims 4-7, wherein the pulling member extends without interruption. 9. Samenstel volgens een voorgaande conclusie 4-8, waarbij het gehele buitenoppervlak (5) van het trekorgaan zich uitstrekt zonder onregelmatigheid ter vermindering van weerstand gedurende aanbrengen van het samenstel in de grond.An assembly according to any preceding claim 4-8, wherein the entire outer surface (5) of the traction member extends without irregularity to reduce resistance during installation of the assembly in the ground. 10. Samenstel volgens een voorgaande conclusie 4-9, waarbij het trekorgaan zich uitstrekt van het tweede koppelingsorgaan naar een te verankeren object zonder enig tussenliggend koppelingsorgaan en/of verbindingsstuk geschikt voor koppeling van trekorgaandelen.10. Assembly as claimed in any of the foregoing claims 4-9, wherein the pulling member extends from the second coupling member to an object to be anchored without any intermediate coupling member and / or connecting piece suitable for coupling of tractor member parts. 11. Samenstel volgens een voorgaande conclusie 4-10, waarbij het gehele trekorgaan is voorzien van bevestigingsdraad voor het koppelen van het trekorgaan aan het te verankeren object.11. Assembly as claimed in any of the foregoing claims 4-10, wherein the entire pulling member is provided with fixing wire for coupling the pulling member to the object to be anchored. 12. Samenstel volgens een voorgaande conclusie 4-10, waarbij het tweede koppelingsorgaan zodanig is geconfigureerd dat het tweede koppelingsorgaan belastingen kan weerstaan op het trekorgaan gedurende aanbrengen van het samenstel met vibrerende beweging, en trekbelasting en beweging kan 5 weerstaan gedurende gebruik van het samenstel.12. Assembly as claimed in any of the foregoing claims 4-10, wherein the second coupling member is configured such that the second coupling member can withstand loads on the pulling member during mounting of the assembly with vibrating movement, and can withstand tensile load and movement during use of the assembly. 13. Samenstel volgens een voorgaande conclusie 4-11, waarbij het tweede koppelingsorgaan een orgaanlichaam (6) van het tweede koppelingsorgaan omvat welke een lichaamsholte (7) heeft waarin een einde van het trekorgaan is 10 opgenomen met een perspassing.13. Assembly as claimed in any of the foregoing claims 4-11, wherein the second coupling member comprises a body member (6) of the second coupling member which has a body cavity (7) in which an end of the pulling member is received with a press fit. 14. Samenstel volgens een voorafgaand aan beweren 4-12, waarbij het orgaanlichaam (6) van het tweede koppelingsorgaan met het trekorgaan overlapt langs de longitudinale as daarvan met ten minste een overlapping (Lo) van ten 15 minste 4 mm.14. Assembly according to claim 4-12, wherein the body member (6) of the second coupling member overlaps with the pulling member along its longitudinal axis with at least an overlap (Lo) of at least 4 mm. 15. Samenstel volgens een voorgaande conclusie 4-13, waarbij de diameter (D) van de lichaamsholte groter is dan 2 mm.An assembly according to any preceding claim 4-13, wherein the diameter (D) of the body cavity is greater than 2 mm. 16. Samenstel volgens een voorgaande conclusie 4-14, waarbij de verhouding tussen de overlapping (Lo) en de diameter (D) van de lichaamsholte 1 overschrijdt, bij voorkeur 1,5.An assembly according to any preceding claim 4-14, wherein the ratio between the overlap (Lo) and the diameter (D) of the body cavity exceeds 1, preferably 1.5. 17. Systeem voor het aanbrengen van een kantelbaar grondanker, omvattend een 25 samenstel volgens een voorgaande conclusie en een klos (17) met een aantal trekorganen om de klos gewonden. -o-o-o-o-o-o-17. System for mounting a tiltable ground anchor, comprising an assembly according to a preceding claim and a spool (17) with a number of pulling members wound around the spool. -o-o-o-o-o-o-
NL2007849A 2011-11-24 2011-11-24 Ground anchor. NL2007849C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL2007849A NL2007849C2 (en) 2011-11-24 2011-11-24 Ground anchor.
EP12194034.0A EP2597203A1 (en) 2011-11-24 2012-11-23 Ground anchor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2007849 2011-11-24
NL2007849A NL2007849C2 (en) 2011-11-24 2011-11-24 Ground anchor.

Publications (1)

Publication Number Publication Date
NL2007849C2 true NL2007849C2 (en) 2013-05-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
NL2007849A NL2007849C2 (en) 2011-11-24 2011-11-24 Ground anchor.

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EP (1) EP2597203A1 (en)
NL (1) NL2007849C2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688360A (en) * 1984-05-11 1987-08-25 Institut Francais Du Petrole Articulated element anchorage device having a cranked shape
FR2652366A1 (en) * 1989-09-27 1991-03-29 Cresp Gerard Method and device for anchoring into the ground
EP0863262A1 (en) * 1997-03-06 1998-09-09 Foresight Products, LLC Bi-directional anchor drive system and method of using same
US20030121219A1 (en) * 2001-12-27 2003-07-03 Dietel William R. Apparatus for installing a workpiece below a surface
GB2402686A (en) * 2003-04-22 2004-12-15 Platipus Anchors Holdings Ltd Ground anchor drainage apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7534073B2 (en) 2007-05-14 2009-05-19 Stahm William G Earth anchor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688360A (en) * 1984-05-11 1987-08-25 Institut Francais Du Petrole Articulated element anchorage device having a cranked shape
FR2652366A1 (en) * 1989-09-27 1991-03-29 Cresp Gerard Method and device for anchoring into the ground
EP0863262A1 (en) * 1997-03-06 1998-09-09 Foresight Products, LLC Bi-directional anchor drive system and method of using same
US20030121219A1 (en) * 2001-12-27 2003-07-03 Dietel William R. Apparatus for installing a workpiece below a surface
GB2402686A (en) * 2003-04-22 2004-12-15 Platipus Anchors Holdings Ltd Ground anchor drainage apparatus

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