NL2009100C2 - Ground anchor assembly. - Google Patents
Ground anchor assembly. Download PDFInfo
- Publication number
- NL2009100C2 NL2009100C2 NL2009100A NL2009100A NL2009100C2 NL 2009100 C2 NL2009100 C2 NL 2009100C2 NL 2009100 A NL2009100 A NL 2009100A NL 2009100 A NL2009100 A NL 2009100A NL 2009100 C2 NL2009100 C2 NL 2009100C2
- Authority
- NL
- Netherlands
- Prior art keywords
- assembly
- ground anchor
- anchor
- coupling
- tension element
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—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
- E02D5/803—Ground anchors with pivotable anchoring members
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a method for 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 member, 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.
Description
Ground Anchor assembly Background 5 The present invention relates to an assembly of a pivoting ground anchor and a tension member.
US 2008/0282625 A1 discloses in general a pivoting ground anchor, also referred to as earth anchor.
10 Summary of the invention
The invention aims to provide an improved ground anchor assembly which is less prone to corrosion.
To this purpose the invention provides an assembly of a pivoting ground anchor 15 and a tension member, 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 second coupling member which fixedly couples the anchor to the tension member such that the anchor pivots when the tension member is taken in, 20 wherein the tension member is suitable for coupling the anchor to the object to be anchored, and comprises fibre reinforced material.
Tension members per se made of fibre reinforces plastic are well known and marketed by for example “Pultron Composites” or “FiReP”. These tension members 25 are often referred to as “FRP bars” or “GRP bars”. Another example of a tension member comprising a fibre reinforced plastic can be a basalt fibre composite reinforcing bar or rod. For example, RockBar as marketed by MagmaTech, UK.
This type of tension member can be coupled with the ground with a grout system or something similar that hardens or sets. This grout system based coupling of the 30 tension member with the ground essentially differs with that of a ground anchor which requires a pretensioning phase to build up a cone of ground above the ground anchor.
2
The tension member is in particular made of fibre reinforced material, more particular fibre reinforced plastic.
In an embodiment, the tension member is a hollow or solid bar.
5
In an embodiment of the assembly according to the invention, the tension member is coupled with the second coupling member by a treaded connection. The FRP or basalt fiber reinforcing composite bar is provided with an outside thread for engaging the hardened grout, which couples with a female thread provided in the 10 second coupling member which female thread is configured to mate with the outside thread of the FRP or basalt fiber reinforcing composite bar.
In an embodiment of the assembly according to the invention, the threaded connection is configured such that the coupled tension member has a play of about 1 15 mm to several millimeters along the thread axis. This provides an equal load and/or load distribution on all the windings of the threaded connection.
In an embodiment of the assembly, the second coupling member comprises a second coupling member body having a body recess provided with a female thread 20 wherein a threaded end of the tension member is accommodated with a loose fit. The diameter D of the body recess may exceed 15 mm.
In an embodiment of the assembly, wherein the second coupling member body overlaps with the tension member along its longitudinal axis at least with an overlap Lo 25 of at least 50 mm.
In an embodiment of the assembly, the ratio of the overlap Lo and the diameter D of the body recess exceeds 1, preferably 1,5.
30 The invention further relates to the use of a tension member, made of fibre reinforced plastic, in a pivoting ground anchor assembly.
3
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.
5 The invention further relates to a method comprising one or more of the 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 10 additional advantageous advantages.
Description of the drawings
The invention will be further elucidated referring to an preferred embodiment 15 shown in the drawing wherein shown in:
Fig. 1 in side view an assembly according to the invention; and Fig 2 a detail view of fig. 1.
Detailed description of embodiments 20
The invention will be further described in detail referring to an preferred embodiment shown in the figures 1 - 2. In the figure 1 an assembly 15 of a tension member 3 and an anchor 1 is shown. The shown tension member 3 is known per se and is made of fibre reinforced plastic (FRP). Another example of tension member can be a 25 basalt fibre composite reinforcing bar or rod, e.g. RockBar as marketed by
MagmaTech, UK. The tension member 3 is coupled with the second coupling member 4, specifically the second coupling member body 6, by a treaded connection 18. Therefore, the tension member is 3 is provided with an outside thread 16 for engaging hardened grout. The shape of the thread 16 is uncommon for a threaded connection 18. 30 The outside thread 16 couples with a female thread 17 provided in the second coupling member body 6 which female thread 17 is configured to mate with the outside thread 16 of the tension member 3 to constitute the threaded connection 18.
4
The threaded connection 18 is configured such that the coupled tension member 3 has a play of about 1 mm to several millimeters along the thread axis 19. Therefore the second coupling member body 6 has a body recess 7 provided with a female thread 17 wherein a threaded end of the tension member 3 is accommodated with a loose fit. This 5 loose fit facilitates screwing of the tension member 3 into the body recess 7 over a considerable overlap Lo. The second coupling member body 6 overlaps with the tension member 3 along its longitudinal axis with an overlap Lo of at least 50 mm.
Here, the diameter D of the body recess 7 is about 15 mm, however other diameters are conceivable. The pitch p of the threaded connection 18 is about 10 mm. 10 The ratio of the overlap Lo and the diameter D of the body recess 7 exceeds 1, preferably 1,5.
The anchor 1 is shown in its set position wherein the longitudinal axis 12 of the anchor 1 is substantially transverse with respect to the longitudinal axis 8 of the tension 15 member 3.
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 a desired depth. The first coupling member 2 comprises a first coupling member cavity 11 for 20 accommodating an end of the elongate driving member. The first coupling 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 25 driving member from the first coupling member cavity 11 once the desired depth for the anchor 1 has been reached.
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. 30 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 which are obvious combinations of prior art techniques and the disclosure of this patent.
Claims (12)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2009100A NL2009100C2 (en) | 2012-07-02 | 2012-07-02 | Ground anchor assembly. |
PCT/NL2013/050483 WO2014007618A2 (en) | 2012-07-02 | 2013-07-02 | Ground anchor assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2009100A NL2009100C2 (en) | 2012-07-02 | 2012-07-02 | Ground anchor assembly. |
NL2009100 | 2012-07-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL2009100C2 true NL2009100C2 (en) | 2014-01-06 |
Family
ID=46982864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL2009100A NL2009100C2 (en) | 2012-07-02 | 2012-07-02 | Ground anchor assembly. |
Country Status (2)
Country | Link |
---|---|
NL (1) | NL2009100C2 (en) |
WO (1) | WO2014007618A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114150664B (en) * | 2021-11-15 | 2023-04-07 | 中国地质调查局武汉地质调查中心 | Rapid construction device and method for prestressed basalt fiber anchor rod |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0161190A2 (en) * | 1984-05-11 | 1985-11-13 | Institut Français du Pétrole | Anchoring device comprising a hinged angular part |
JPS61257533A (en) * | 1985-01-17 | 1986-11-15 | Nippon Kiso Gijutsu Kk | Temporary burying material for removable anchor |
EP0863262A1 (en) * | 1997-03-06 | 1998-09-09 | Foresight Products, LLC | Bi-directional anchor drive system and method of using same |
US20080282625A1 (en) * | 2007-05-14 | 2008-11-20 | Foresight Products, Llc | Earth anchor |
-
2012
- 2012-07-02 NL NL2009100A patent/NL2009100C2/en active
-
2013
- 2013-07-02 WO PCT/NL2013/050483 patent/WO2014007618A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0161190A2 (en) * | 1984-05-11 | 1985-11-13 | Institut Français du Pétrole | Anchoring device comprising a hinged angular part |
JPS61257533A (en) * | 1985-01-17 | 1986-11-15 | Nippon Kiso Gijutsu Kk | Temporary burying material for removable anchor |
EP0863262A1 (en) * | 1997-03-06 | 1998-09-09 | Foresight Products, LLC | Bi-directional anchor drive system and method of using same |
US20080282625A1 (en) * | 2007-05-14 | 2008-11-20 | Foresight Products, Llc | Earth anchor |
Also Published As
Publication number | Publication date |
---|---|
WO2014007618A2 (en) | 2014-01-09 |
WO2014007618A3 (en) | 2014-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2295675A1 (en) | Reinforcement method for a construction structure and structure reinforced in this way | |
CN107708948B (en) | The tensioning method and wedge of continuous fiber reinforcement material tensioning apparatus, continuous fiber reinforcement material | |
US20140360129A1 (en) | Device for introducing a force into tension members made of fiber-reinforced flat-strip plastic lamellas | |
CA2636921A1 (en) | Process for reinforcing a building structure, and structure thus reinforced | |
NL2009100C2 (en) | Ground anchor assembly. | |
EP3064669B1 (en) | Anchor and fastening device for thermally insulated walls | |
JP2009293196A (en) | Rock bolt structure and its tensile yield strength test method | |
CN101864827A (en) | Anchor design of pre-stressed carbon fiber reinforced plastic rib group | |
US20140308067A1 (en) | Bamboo Construction Standardization System and Method | |
CN102425270A (en) | Major diameter steel strand extruding type ground tackle | |
CN207905246U (en) | A kind of connection structure for prefabricated components | |
JP5830304B2 (en) | Method for screwing wooden structure members of lag screw | |
ZA201006310B (en) | Fastening element and method for producing a fastening element | |
CN204492012U (en) | A kind of bar connecting device | |
JP3987986B2 (en) | Apparatus and method for gripping hollow fiber reinforced plastic rod | |
JP2013181279A (en) | Reinforcement connector and reinforcement connection method | |
US20130136543A1 (en) | Ground anchor | |
CN202248544U (en) | Assembled building reinforced concrete member structural steel bar connecting sleeve | |
JPH01146013A (en) | Anchorage end structure of built-in member | |
CN211922257U (en) | Tie rod embedded part | |
JP6022997B2 (en) | Tensile anchor and tension member | |
KR101368055B1 (en) | Anchor head device | |
JP5701926B2 (en) | Temporary fixing device for broken tapered hollow pillars | |
CN107100278A (en) | A kind of concrete embedded thread bush and its application method | |
CN201835443U (en) | Steel reinforcement connection sleeve |