EP2027366B1 - Ancrage pour forage, en plastique à fibres renforcées - Google Patents
Ancrage pour forage, en plastique à fibres renforcées Download PDFInfo
- Publication number
- EP2027366B1 EP2027366B1 EP07725617A EP07725617A EP2027366B1 EP 2027366 B1 EP2027366 B1 EP 2027366B1 EP 07725617 A EP07725617 A EP 07725617A EP 07725617 A EP07725617 A EP 07725617A EP 2027366 B1 EP2027366 B1 EP 2027366B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drilling anchor
- drilling
- fibres
- longitudinal direction
- fibre layer
- 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.)
- Not-in-force
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 114
- 229920002430 Fibre-reinforced plastic Polymers 0.000 title claims abstract description 12
- 239000011151 fibre-reinforced plastic Substances 0.000 title claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 92
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 229920003023 plastic Polymers 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 12
- 239000003365 glass fiber Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 229920001567 vinyl ester resin Polymers 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000000088 plastic resin Substances 0.000 claims description 3
- 239000011253 protective coating Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000011435 rock Substances 0.000 description 9
- 239000002131 composite material Substances 0.000 description 6
- 230000004224 protection Effects 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0006—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by the bolt material
Definitions
- the present invention relates to a drilling anchor according to the preamble of claim 1.
- Such drilling anchors are made of fiber-reinforced plastic, wherein fibers extending both in the longitudinal direction of the drilling anchor and fibers running obliquely to the longitudinal direction of the drilling anchor are embedded in a plastic matrix.
- the drilling anchors are provided with a central channel which is formed by an axial bore extending over the entire length of the drilling anchor.
- Drilling anchors are also well known as so-called "self-drilling" anchors (SB anchors). They are mainly used in mining or tunneling to secure components such as ceilings or walls. In particular, they are used when rock, mountains or rocks are brittle and the anchor well is so unstable that it collapses during drilling or after pulling the conventional drill string and a conventional anchor can not be set.
- the drilling anchors combine the function of the drill string, which conventionally in connection with a percussion or rotary drilling machine drilling holes, with the function of the subsequently inserted into the drilled holes anchor, so that the extraction of the drill string and the breaking of the borehole wall can be avoided can.
- the drilling anchors are provided at the front with a drill bit and connected at the back with a drill or drilling device.
- Fiber-reinforced plastics are fiber composites in which the plastics are combined with fibers made of a different material in order to obtain positive synergy effects and improved in the desired direction, in particular mechanically improved properties of the plastic.
- a plurality of parallel oriented fibers which may for example have a diameter of 10 to 30 microns, is thus surrounded by a matrix of plastic resin.
- the fibers give the composite its high strength in the longitudinal direction, while the resin matrix serves to fix the fibers in their position while protecting them from harmful influences.
- a multi-layered cable anchor in which a rope made of textile yarn is surrounded by a support braid and may contain an inner soul.
- an outer protective sheath made of plastic is additionally provided.
- such a cable anchor can not be used as a drilling anchor for the applications mentioned above, since apart from a missing external thread neither a transmission of high torques nor an effective transmission of impact energy of the hammer to a drill bit mounted on the anchor bit is possible. Rather, it is designed as a flexible anchor with its rope-like construction for tumbling as endless material, which can be introduced only in already completed holes.
- a rock anchor made of plastic which consists of synthetic materials, which are arranged in superimposed layers.
- the anchor can also be designed as a hollow anchor for injecting.
- this rock anchor is also not suitable for drilling due to its lack of rigidity, since it is designed as a yielding system to withstand movements in sedimentary rocks and convergences, which is comparable to increased ductility in steel.
- the rock anchor also has no external profiling or no external thread, so that it can not be used as a drilling anchor for this reason.
- fiber reinforced plastic drilling anchors of the type mentioned above are from WO 96/21087 known as the closest prior art. They each have a limited axial extent at the two end regions thread. These drilling anchors include both helically wound fibers and longitudinal fibers.
- a disadvantage of these known drilling anchors is only a limited composite effect in pressed concrete or other surrounding media or surrounding rock.
- the loads occurring during drilling can lead to damage to the drilling anchors despite the two-layer fiber structure.
- the object of the present invention is therefore to provide an improved drilling anchor of the type mentioned above made of fiber-reinforced plastic, which can better absorb the complex occurring stresses and resulting forces in drilling operation.
- a multi-functional to be used anchor drill is provided, which has sufficient hydraulic strength for flushing with drilling water and the subsequent high-pressure injection at very high pressures and at the same time can compensate for the introduced into the anchor complex tensions and burdens in pre-destroyed rock.
- a first fiber layer with fibers extending obliquely to the longitudinal direction of the drilling anchor is surrounded by a second fiber layer with fibers running in the longitudinal direction of the drilling anchor, such that the second fiber layer extends from at least one third fiber layer with an angle to the longitudinal direction of the drilling anchor Fibers is surrounded, and that the drilling anchor has a over its entire length extending thread, which is formed in at least one outer fiber layer of the drilling anchor.
- the main advantage lies in the fact that a much more versatile Bohranker to be used is created, which ensures a permanently greater safety at a much higher load capacity.
- the complex stresses and resulting forces occurring during the drilling process in particular drag forces from axial compression and torsion z. B. by Friction and cutting force are absorbed much better.
- much higher hydraulic pressures when flushing with drilling water, but especially during subsequent high-pressure injecting z. B. with 2-K systems and pressures over 300 bar without damage to the drilling anchor are included and at the same time the complex introduced from tensile, shear and shear stresses and strains of the anchor in the rock can be compensated.
- the drilling anchor according to the invention is inexpensive to manufacture and easy to handle with low weight with a simple design. In addition, an optimal corrosion protection is guaranteed even in long-term applications.
- the third fiber layer is surrounded by at least one fourth fiber layer. It is particularly advantageous if the third fiber layer is surrounded by at least one fourth fiber layer. As a result, an even better strength and an optimized training of the drilling anchor can be achieved.
- the first and / or third fiber layer comprises fibers which are wound helically at an angle between 30 ° and 60 °, in particular between 40 ° and 50 °, preferably at an angle of approximately 45 ° to the longitudinal direction of the drilling anchor are.
- first and / or third fiber layers each comprise a first group of fibers which are wound at an angle of between 30 ° and 60 ° to the longitudinal direction of the drilling anchor in a first gradient orientation and also a second group of fibers , which are wound at an angle between 30 ° and 60 ° to the longitudinal direction of the drilling anchor in the opposite slope orientation.
- the two groups of fibers can be introduced either separately in succession or mixed together.
- the fibers of individual fiber layers are embedded in plastics which are different from the plastic of the adjacent fiber layers.
- the fibers of individual fiber layers may consist of a material which is different from the material of the adjacent fiber layers.
- the first and / or third fiber layer comprises fibers running obliquely to the longitudinal direction of the drilling anchor and embedded in vinyl ester resin.
- the embedding of the inner channel limiting fibers in vinyl ester resin advantageously serves to increase the chemical resistance of the drilling anchor.
- the second fiber layer with fibers extending in the longitudinal direction of the drilling anchor is preferably embedded in epoxy resin. They thus allow optimum transfer of tensile and compressive forces even with a pulse-like impact load.
- the fibers of the first and / or second fiber layer are glass fibers.
- the fibers of the third fiber layer are preferably carbon fibers.
- the fourth fiber layer comprises glass fibers, which are preferably embedded in epoxy resin.
- the thread can be formed without a fiber gate. In this way, a high-strength thread is achieved without cutting and thus without destroying the fibers, which produces an optimal composite effect to its environment at its length according to the invention.
- the drilling anchor based on the volume, has a fiber content of at least 80% and a plastic resin content of at most 20%. In this way optimal strength values are achieved with regard to all occurring loads.
- the thread of the drilling anchor is provided with a hardened protective coating.
- the protective coating may consist of topcoating, in particular of a cured gel, and serve not only a mechanical protection, but also a UV protection and, in particular, an acid protection of the thread.
- the present invention further relates to a method of making a drilling anchor of the type described above. Thereafter, the drilling anchor is pultruded in multiple layers with separate layers, thereby enabling cost effective and easy fabrication in spite of the improved properties of the drilling anchor.
- the drilling anchor 1 shown in the figures consists of fiber-reinforced plastic, which is constructed in multiple layers.
- the drilling anchor 1 has a continuous over its entire length axial bore 2 and also over its entire length continuous external thread 3 with a wavy contour.
- the fibers or the groups of fibers are not only arranged in a parallel unidirectional manner but in particular wound in the uppermost layer opposite the thread rotation and drilling direction or embedded in the resin matrix.
- two groups of glass fibers are embedded in a first fiber layer 4 with simultaneously high mechanical and chemical resistance in vinyl resin to increase the hydraulic stability. These two groups of the first fiber layer 4 are each wound at an angle of 45 ° to the axial alignment of the drilling anchor 1 in opposite directions.
- a second fiber layer 5 of glass fibers is embedded in the longitudinal direction of the drilling anchor 1 in epoxy resin. It serves to accommodate high mechanical axial tensile and compressive forces.
- carbon fibers are opposite to the rotation and drilling direction of the external thread 3 embedded in vinyl ester resin. They take over the special reaction forces from the drilling work. At the same time they provide permanent protection for the glass fibers in the core against external chemical effects due to the receiving vinyl ester resin.
- the high-strength thread 3 is formed without destroying the continuous glass fibers.
- the drilling anchor 1 is injected after drilling through various adapter systems.
- cement mortar that is not critical because no high injection pressures and hardly reaction pressures occur, not mixed on or in the drilling anchor 1 high energy and pressure must be maintained and the borehole itself must not be kept consuming closed.
- good sealing adapters with upstream valves, integrated mixer, nozzle and check valve must be used.
- the anchor tube 1 itself must also be generally hydraulically loadable up to about 250 bar working pressure or nominal pressure (350 bar bursting pressure). This load capacity is achieved by the inventive design of the drilling anchor 1.
- a self-drilling FRP anchor 1 for right-handed rotatory drilling has a limited torsional resistance, in contrast to steel pipes due to the anisotropy of the fiber composite.
- the drilling anchor according to the invention is optimized with regard to resin quality and fiber quality as well as fiber orientation and process.
- both one or more unidirectional fiber courses 5 and one or more helically wound fiber courses 4, 6 are combined with the same and / or different directions and also the same or different gradients independently of one another in any desired combination ,
- the fibers may have an opposite grain, so that left-handed screw for left-handed drilling then a right-handed wound fiber in the edge layer 7 is present and vice versa the plastic tube 1 for right-handed drilling a right-handed screw with has left-handed fiber profile in the edge layer 7.
- the geometry of the fferprofilleiter each left- or right-handed thread-compatible with various standard accessories from the left-rotary impact drilling area or from the right-rotary drilling area can be screwed.
- the continuous screw 3 also in mortars and concrete with optimized related ribbed surface excellent composite properties.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Piles And Underground Anchors (AREA)
- Laminated Bodies (AREA)
- Dowels (AREA)
Claims (14)
- Ancre de perçage en plastique renforcé par des fibres, comprenant un perçage (2) axial continu sur toute sa longueur, l'ancre de perçage (1) comprenant aussi bien des fibres agencées dans le sens longitudinal de l'ancre de perçage (1) que les fibres agencées en biais par rapport au sens longitudinal de l'ancre de perçage (1),
caractérisée en ce que
une première couche de fibres (4) avec des fibres agencées en biais par rapport au sens longitudinal de l'ancre de perçage (1) est entourée d'une seconde couche de fibres (5) avec des fibres agencées dans le sens longitudinal de l'ancre de perçage (1),
en ce que la seconde couche de fibres (5) est entourée d'au moins une troisième couche de fibres (6) avec des fibres agencées en biais par rapport au sens longitudinal de l'ancre de perçage (1),
et en ce que l'ancre de perçage (1) présente un filetage (3) s'étendant sur toute sa longueur, qui est formé à l'intérieur d'au moins une couche de fibres (6, 7) extérieure de l'ancre de perçage (1). - Ancre de perçage selon la revendication 1, caractérisée en ce que la troisième couche de fibres (6) est entourée d'au moins une quatrième couche de fibres (7).
- Ancre de perçage selon la revendication 1 ou 2, caractérisée en ce que la première et/ou la troisième couche de fibres (4, 6) comprend des fibres qui sont enroulées en forme d'hélice dans un angle compris entre 30° et 60°, en particulier entre 40° et 50°, par rapport au sens longitudinal de l'ancre de perçage.
- Ancre de perçage selon la revendication 3, caractérisée en ce que la première et/ou la troisième couche de fibres (4, 6) comprend chacune un premier groupe de fibres, qui sont enroulées dans un angle compris entre 30° et 60° par rapport au sens longitudinal de l'ancre de perçage (1) dans une première orientation de pente, ainsi qu'au moins un second groupe de fibres, qui sont enroulées dans un angle compris entre 30° et 60° par rapport au sens longitudinal de l'ancre de perçage dans l'orientation de pente opposée.
- Ancre de perçage selon l'une quelconque des revendications précédentes, caractérisée en ce que les fibres de couches de fibres individuelles sont intégrées dans des plastiques qui sont différents du plastique des couches de fibres voisines.
- Ancre de perçage selon l'une quelconque des revendications précédentes, caractérisée en ce que les fibres de couches de fibres individuelles sont à base d'un matériau qui est différent du matériau des couches de fibres voisines.
- Ancre de perçage selon l'une quelconque des revendications précédentes, caractérisée en ce que la première et/ou la troisième couche de fibres (4, 6) comprend des fibres agencées en biais par rapport au sens longitudinal de l'ancre de perçage, qui sont intégrées dans de la résine vinyle-ester.
- Ancre de perçage selon l'une quelconque des revendications précédentes, caractérisée en ce que la seconde couche de fibres (5) comprend des fibres agencées dans le sens longitudinal de l'ancre de perçage, qui sont intégrées dans de la résine époxy.
- Ancre de perçage selon l'une quelconque des revendications précédentes, caractérisée en ce que les fibres de la première et/ou de la seconde couche de fibres (4, 5) sont des fibres de verre.
- Ancre de perçage selon l'une quelconque des revendications précédentes, caractérisée en ce que les fibres de la troisième couche de fibres (6) sont des fibres de carbone.
- Ancre de perçage selon l'une quelconque des revendications 2 à 10, caractérisée en ce que la quatrième couche de fibres (7) comprend des fibres de verre qui sont intégrées de préférence dans de la résine époxy, le filetage (3) étant formé sans coupure de fibre dans cette quatrième couche de fibres (7).
- Ancre de perçage selon l'une quelconque des revendications précédentes, caractérisée en ce que l'ancre de perçage (1) présente par rapport au volume une fraction de fibres d'au moins 80 % et une fraction de résine synthétique de 20 % maximum.
- Ancre de perçage selon l'une quelconque des revendications précédentes, caractérisée en ce que le filetage (3) de l'ancre de perçage (1) est doté d'une couche de protection durcie.
- Procédé pour la fabrication d'une ancre de perçage selon l'une quelconque des revendications précédentes, caractérisé en ce que l'ancre de perçage (1) est fabriquée de façon multicouche avec des couches (4, 5, 6, 7) séparées par pultrusion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07725617T PL2027366T3 (pl) | 2006-05-29 | 2007-05-29 | Samowiercąca kotwa z tworzywa sztucznego wzmocnionego włóknami |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006025248A DE102006025248A1 (de) | 2006-05-29 | 2006-05-29 | Faserverstärkter Kunststoff-Bohranker |
PCT/EP2007/004722 WO2007137807A1 (fr) | 2006-05-29 | 2007-05-29 | Ancrage pour forage, en plastique à fibres renforcées |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2027366A1 EP2027366A1 (fr) | 2009-02-25 |
EP2027366B1 true EP2027366B1 (fr) | 2009-10-14 |
Family
ID=38344761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07725617A Not-in-force EP2027366B1 (fr) | 2006-05-29 | 2007-05-29 | Ancrage pour forage, en plastique à fibres renforcées |
Country Status (9)
Country | Link |
---|---|
US (1) | US8172484B2 (fr) |
EP (1) | EP2027366B1 (fr) |
AT (1) | ATE445763T1 (fr) |
AU (1) | AU2007267379B2 (fr) |
CA (1) | CA2659568C (fr) |
DE (2) | DE102006025248A1 (fr) |
ES (1) | ES2334850T3 (fr) |
PL (1) | PL2027366T3 (fr) |
WO (1) | WO2007137807A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023001490A1 (fr) * | 2021-07-20 | 2023-01-26 | Svm Schultz Verwaltungs-Gmbh & Co. Kg | Actionneur électromagnétique à élément fibreux |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE102006025248A1 (de) | 2006-05-29 | 2007-12-06 | Beltec Industrietechnik Gmbh | Faserverstärkter Kunststoff-Bohranker |
EP1998056A1 (fr) * | 2007-05-29 | 2008-12-03 | Sgl Carbon Ag | Attache composite pour composants céramiques |
DE102007027015A1 (de) * | 2007-06-08 | 2008-12-11 | Schöck Bauteile GmbH | Bewehrungsstab |
KR20100130286A (ko) * | 2009-06-03 | 2010-12-13 | 에스케이케미칼주식회사 | 섬유강화수지 볼트 및 그 제조방법 |
WO2011067797A1 (fr) * | 2009-12-03 | 2011-06-09 | Elas Geotecnica S.R.L | Procédé et installation pour produire un profilé en fibre de verre destiné à être utilisé comme élément de renforcement pour consolider une paroi d'une excavation |
DE102010043769B4 (de) * | 2010-11-11 | 2015-07-09 | Hilti Aktiengesellschaft | Ankerbaugruppe, insbesondere für den Berg- und Tunnelbau |
DE102010043765B4 (de) * | 2010-11-11 | 2014-08-28 | Hilti Aktiengesellschaft | Ankerbaugruppe sowie Verfahren zur Herstellung einer Ankerbaugruppe |
DE102010053843A1 (de) * | 2010-12-08 | 2012-06-14 | Daimler Ag | Verbindungsanordnung |
CN102979097B (zh) * | 2011-09-07 | 2017-02-22 | 上海启鹏工程材料科技有限公司 | 一种编织套管型frp筋及其制备方法 |
US9752435B2 (en) * | 2012-07-23 | 2017-09-05 | Setevox (Pty) Ltd | Mine roof support |
US10589468B2 (en) * | 2014-03-07 | 2020-03-17 | Bombardier Inc. | Composite rivet blank and installation thereof |
CN104912070B (zh) * | 2015-05-27 | 2017-06-30 | 郑州大学 | 高性能frp锚杆的制造工艺及抗扭承载力计算方法 |
US10077856B2 (en) | 2015-06-05 | 2018-09-18 | Advanced Drainage Systems Inc. | Pipe with an outer wrap |
US9759354B2 (en) | 2015-06-05 | 2017-09-12 | Advanced Drainage Systems, Inc. | Pipe with an outer wrap |
US10077857B2 (en) | 2015-06-05 | 2018-09-18 | Advanced Drainage Systems Inc. | Pipe with an outer wrap |
CN106703851A (zh) * | 2017-01-11 | 2017-05-24 | 辽宁工程技术大学 | 一种可延伸防破断玻璃钢锚杆 |
CN107119855B (zh) * | 2017-05-27 | 2022-08-26 | 东南大学 | 提高复材筋锚固性能的结构及其挤压成型方法 |
US11536137B2 (en) | 2017-11-28 | 2022-12-27 | Saltus Mining Africa (Pty) Limited | Light weight rockbolt components and a non-metallic rockbolt |
CN114017086B (zh) * | 2021-11-10 | 2023-07-25 | 山东科技大学 | 一种适应围岩大变形的抗拉-剪连续玄武岩纤维复合锚杆 |
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DE29501694U1 (de) * | 1995-02-03 | 1995-04-20 | Ortwin M. Zeissig GmbH & Co. KG, 45481 Mülheim | Gebirgsanker aus Kunststoff |
DE19828371A1 (de) | 1998-06-26 | 1999-12-30 | Sika Ag, Vormals Kaspar Winkler & Co | Zuganker insbesondere zur Sicherung von Felswänden sowie Verfahren zur Herstellung eines derartigen Zugankers |
US6929424B2 (en) * | 2001-06-04 | 2005-08-16 | Romtech Limited | Rock bolt and method of use |
DE102006025248A1 (de) | 2006-05-29 | 2007-12-06 | Beltec Industrietechnik Gmbh | Faserverstärkter Kunststoff-Bohranker |
-
2006
- 2006-05-29 DE DE102006025248A patent/DE102006025248A1/de not_active Withdrawn
-
2007
- 2007-05-29 AU AU2007267379A patent/AU2007267379B2/en not_active Ceased
- 2007-05-29 ES ES07725617T patent/ES2334850T3/es active Active
- 2007-05-29 EP EP07725617A patent/EP2027366B1/fr not_active Not-in-force
- 2007-05-29 US US12/302,215 patent/US8172484B2/en not_active Expired - Fee Related
- 2007-05-29 DE DE502007001746T patent/DE502007001746D1/de active Active
- 2007-05-29 AT AT07725617T patent/ATE445763T1/de active
- 2007-05-29 PL PL07725617T patent/PL2027366T3/pl unknown
- 2007-05-29 WO PCT/EP2007/004722 patent/WO2007137807A1/fr active Application Filing
- 2007-05-29 CA CA2659568A patent/CA2659568C/fr not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023001490A1 (fr) * | 2021-07-20 | 2023-01-26 | Svm Schultz Verwaltungs-Gmbh & Co. Kg | Actionneur électromagnétique à élément fibreux |
Also Published As
Publication number | Publication date |
---|---|
WO2007137807A1 (fr) | 2007-12-06 |
US8172484B2 (en) | 2012-05-08 |
AU2007267379B2 (en) | 2012-05-17 |
ES2334850T3 (es) | 2010-03-16 |
AU2007267379A1 (en) | 2007-12-06 |
DE102006025248A1 (de) | 2007-12-06 |
CA2659568C (fr) | 2014-12-16 |
DE502007001746D1 (de) | 2009-11-26 |
ATE445763T1 (de) | 2009-10-15 |
CA2659568A1 (fr) | 2007-06-12 |
PL2027366T3 (pl) | 2010-03-31 |
US20090297278A1 (en) | 2009-12-03 |
EP2027366A1 (fr) | 2009-02-25 |
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