WO2015072828A1 - Mining anchor with a threaded tip - Google Patents
Mining anchor with a threaded tip Download PDFInfo
- Publication number
- WO2015072828A1 WO2015072828A1 PCT/MX2013/000167 MX2013000167W WO2015072828A1 WO 2015072828 A1 WO2015072828 A1 WO 2015072828A1 MX 2013000167 W MX2013000167 W MX 2013000167W WO 2015072828 A1 WO2015072828 A1 WO 2015072828A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mining
- anchor
- thread
- mining anchor
- pointed
- Prior art date
Links
- 238000005065 mining Methods 0.000 title claims abstract description 60
- 239000011435 rock Substances 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000004568 cement Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims abstract 2
- 239000000203 mixture Substances 0.000 claims description 4
- 230000002028 premature Effects 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 238000005553 drilling Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 101100421901 Caenorhabditis elegans sos-1 gene Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
Definitions
- the present invention relates to a mining anchor with pointed thread which is used as rock reinforcement in the underground works of the mining industry, is placed in the perforations made in the rock and used in conjunction with accessories such as cement cartridge or cartridge of resin that are inserted in the perforation, and the mining plate which is placed in the anchor for the reinforcement of the rock mass.
- the mining anchor with pointed thread is manufactured to be installed in the perforations previously made in the rock where the grounds are of poor quality and cause rockfall, which puts at risk the health of personnel operating in this type of underground works.
- the mining anchor with pointed thread is installed together with resin or cement cartridges in a previously made drilling, and will be placed to the bottom of it
- the rock plate continues, so that the rock mass is reinforced by leaving the mining anchor and the mining plate butt with the rock to prevent the rock from detaching, avoiding jeopardizing health of the personnel that operates in this type of underground works, another problem that it solves is to be able to be adjusted when it requires maintenance, since it can be the case that there is rock detachment in the perimeter near the mining anchor with pointed thread, of such that it can be adjusted by means of the nut to adhere properly to the rock once it is no longer next to the rock massif, preventing the blocks of rock from giving in.
- the mining anchor with pointed thread is made of forged steel and manufactured by the process of forming the red-hot steel applied on the tip on a corrugated steel rod, the back of the anchor that has the corrugated serves to adhere properly to the mixture of the cartridges with which it is used. It is made in lengths ranging from 1.60 meters to lengths greater than 3.0 meters, has 8 "(20.32 mm) of thread at the front end, and handled in diameters of 5/8" (1.58 mm) and 3/4 "(1 .90 mm). The nut can travel the length of its thread to be adjusted in areas that are of very poor quality or very unstable.
- the mining anchor with pointed thread is installed in perforations previously made in the tunnels of the underground works of the mining industry, together with its complements which can be resin cartridges or cementing cartridges, and with the mining plate that supports the rock mass of the underground works of the mining industry.
- This type of anchor has a 45 ° cut at the rear end that serves to break and mix the cartridges a! time to get into drilling.
- At the front end, at the front of the thread has the square formation, this helps you to be able to hold it from the walking equipment to install it in the hole.
- Figure 1 Top isometric view of the mining anchor with pointed thread.
- Figure 2 Isometric top front view of the mining anchor with pointed thread.
- Figure 3 Rear upper isometric view of the mining anchor with pointed thread.
- Figure 4. Side view of the mining anchor with pointed thread.
- Figure 6. Rear upper isometric view of the mining anchor nut with pointed thread.
- the mining anchor with pointed thread (Figure 1) is made from corrugated steel rod, to which an ACME type thread (1: Figure 4) is made, which is a standard rectangular or square 8 "thread ( 20.32 mm) in length of the mining anchor, which prevents damage to it so that it operates properly when it is installed and requires maintenance.
- the mining anchor with pointed thread can be made in lengths ranging from Sos 1 .6 mts up to length greater than 3.0 meters, and this is according to the quality of the rock of the rock mass, being that if it is of good quality they will be of smaller size and if the terrain is of bad to very poor quality they will require a longer length
- the recommended diameter for this type of mining anchor is 3/4 "(19.05 mm).
- a drilling is carried out in the underground work of the mining industry, resin or cement cartridges are inserted inside the drilling, then the mining anchor with pointed thread is placed in the equipment manual or mechanized that will insert it into the drilling and the mining plate is inserted into e! Anchor, the mining anchor is then inserted with a pointed thread to the bottom of the hole, so that the plate placed at the front end is properly adhered to the rock mass to avoid the release of rock that puts at risk the health of the personnel that operates in this type of underground works of the mining industry.
- the mining anchor with pointed thread Once the mining anchor with pointed thread is placed in the rock mass, it will be checked periodically, so that it is checked whether rock falls have been carried out in the near perimeter of the mining anchor with pointed thread, if this happens it should be adjust the nut until the mining plate adheres until it is again adhered to the rock mass to maintain the resistance to avoid rock falls.
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)
Abstract
The invention relates to a mining anchor with a threaded tip, for reinforcing underground terrains in the mining industry for the safety of the personnel. The advantages of said mining anchor with a threaded tip include: damage to the thread is prevented as a result of the magnitude and rigidity thereof; it allows adjustment of the mining plate with the nut even once the mining anchor with a continuous thread has been installed and there is evidence of rock having been loosened in the area around the anchor; and there is a steel square at the front of the anchor, which allows easy installation of the anchor as a quadrate is used for the positioning thereof. It is installed together with the following complements: a cement or resin cartridge, and the mining plate for suitably reinforcing the rock of the underground tunnels of the mining industry.
Description
ANCLA MINERA CON ROSCA EN PUNTA MINING ANCHOR WITH THREAD IN PUNTA
CAMPO TÉCNICO DE LA INVENCIÓN. TECHNICAL FIELD OF THE INVENTION.
La presente invención se refiere a una ancla minera con rosca en punta la cual es utilizada como refuerzo de roca en las obras subterráneas de la industria minera, es colocada en las perforaciones realizadas en la roca y utilizada en conjunto con complementos como cartucho cementante o cartucho de resina que son insertados en la perforación, y la placa minera cual es colocada en el ancla para el reforzamiento del macizo rocoso. The present invention relates to a mining anchor with pointed thread which is used as rock reinforcement in the underground works of the mining industry, is placed in the perforations made in the rock and used in conjunction with accessories such as cement cartridge or cartridge of resin that are inserted in the perforation, and the mining plate which is placed in the anchor for the reinforcement of the rock mass.
OBJETIVO DE LA INVENCIÓN. OBJECTIVE OF THE INVENTION
El ancla minera con rosca en punta es fabricada para instalarse en las perforaciones realizadas previamente en la roca donde los terrenos son de mala calidad y provocan desprendimiento de roca, lo cual pone en riesgo la salud del personal que opera en este tipo de obras subterráneas. The mining anchor with pointed thread is manufactured to be installed in the perforations previously made in the rock where the grounds are of poor quality and cause rockfall, which puts at risk the health of personnel operating in this type of underground works.
ANTECEDENTES. BACKGROUND.
Existen anclas mineras que son utilizadas para el refuerzo de roca de las obras subterráneas de la industria minera, estas anclas utilizan complementos mecánicos los cuales ayudan al refuerzo de la roca en el techo, hombros y muros de los túneles subterráneos. There are mining anchors that are used for rock reinforcement of the underground works of the mining industry, these anchors use mechanical complements which help reinforce the rock in the roof, shoulders and walls of the underground tunnels.
PROBLEMA TÉCNICO A RESOLVER. TECHNICAL PROBLEM TO BE SOLVED.
El problema que presentan las anclas convencionales utilizadas en las obras subterráneas de la industria minera es que se deterioran fácilmente, debido a que el complemento mecánico el cual refuerza el ancla en la roca es dañado fácilmente cuando la roca comienza a ceder hacia la parte frontal del ancla, de tal manera que esta pierde fuerza y queda propenso a que este tipo de anclas no refuercen adecuadamente los terrenos, poniendo en riesgo la salud del personal que ingresa a estas obras subterráneas. El ancla minera con rosca en punta es instalada en conjunto con cartuchos de resina o cementantes en una perforación previamente realizada, y será colocada hasta el fondo de la misma
una vez insertada en ei ancla minera de rosca continua la placa minera, de tal manera que sea reforzado el macizo rocoso al dejar el ancla minera y la placa minera a tope con la roca para evitar que la roca se desprenda evitando poner en riesgo la salud del personal que opera en este tipo de obras subterráneas, otro problema que resuelve es el poder ser ajustada cuando requiera mantenimiento, ya que se puede dar el caso de que haya desprendimiento de roca en el perímetro cercano al ancla minera con rosca en punta, de tal manera que puede ajustarse mediante la tuerca para adherirse adecuadamente a la roca una vez que esta ya no se encuentre junto al macizo rocoso evitando que los bloques de roca sigan cediendo. The problem presented by conventional anchors used in the underground works of the mining industry is that they deteriorate easily, because the mechanical complement which reinforces the anchor in the rock is easily damaged when the rock begins to give way to the front of the anchor, so that it loses strength and is prone to this type of anchors do not adequately reinforce the land, putting at risk the health of personnel entering these underground works. The mining anchor with pointed thread is installed together with resin or cement cartridges in a previously made drilling, and will be placed to the bottom of it Once the mining plate is inserted into the thread anchor, the rock plate continues, so that the rock mass is reinforced by leaving the mining anchor and the mining plate butt with the rock to prevent the rock from detaching, avoiding jeopardizing health of the personnel that operates in this type of underground works, another problem that it solves is to be able to be adjusted when it requires maintenance, since it can be the case that there is rock detachment in the perimeter near the mining anchor with pointed thread, of such that it can be adjusted by means of the nut to adhere properly to the rock once it is no longer next to the rock massif, preventing the blocks of rock from giving in.
BREVE DESCRIPCIÓN DE LA INVENCIÓN. BRIEF DESCRIPTION OF THE INVENTION.
El ancla minera con rosca en punta es elaborada de acero forjado y fabricada mediante el proceso de conformado del acero al rojo vivo aplicado en la punta en una varilla corrugada de acero, la parte posterior del ancla que cuenta con el corrugado sirve para que se adhiera adecuadamente a la mezcla de los cartuchos con los que se utilice. Es elaborada en longitudes que van desde los 1 .60 mts hasta longitudes mayores a 3.0 mts, cuenta con 8" (20.32 mm) de rosca en el extremo frontal, y manejadas en diámetros de 5/8" (1 .58 mm) y 3/4" (1 .90 mm). La tuerca puede recorrer la longitud de su rosca para ser ajustada en los terrenos que son de muy mala calidad o muy inestables. The mining anchor with pointed thread is made of forged steel and manufactured by the process of forming the red-hot steel applied on the tip on a corrugated steel rod, the back of the anchor that has the corrugated serves to adhere properly to the mixture of the cartridges with which it is used. It is made in lengths ranging from 1.60 meters to lengths greater than 3.0 meters, has 8 "(20.32 mm) of thread at the front end, and handled in diameters of 5/8" (1.58 mm) and 3/4 "(1 .90 mm). The nut can travel the length of its thread to be adjusted in areas that are of very poor quality or very unstable.
El ancla minera con rosca en punta es instalada en perforaciones previamente realizadas en los túneles de las obras subterráneas de la industria minera, en conjunto con sus complementos cuales pueden ser cartuchos de resina o cartuchos cementantes, y con la placa minera que soporta el macizo rocoso de las obras subterráneas de la industria minera. The mining anchor with pointed thread is installed in perforations previously made in the tunnels of the underground works of the mining industry, together with its complements which can be resin cartridges or cementing cartridges, and with the mining plate that supports the rock mass of the underground works of the mining industry.
Este tipo de ancla cuenta con corte a 45° en ei extremo posterior que sirve para romper y mezclar los cartuchos a! momento de introducirse en la perforación. En el extremo frontal, al frente de la rosca tiene la formación cuadrada, esta le ayuda para poder sujetarla del equipo andador para que la instale en la perforación.
BREVE DESCRIPCIÓN DE LAS FIGURAS. This type of anchor has a 45 ° cut at the rear end that serves to break and mix the cartridges a! time to get into drilling. At the front end, at the front of the thread has the square formation, this helps you to be able to hold it from the walking equipment to install it in the hole. BRIEF DESCRIPTION OF THE FIGURES.
Figura 1 .- Vista isométrica superior frontal del ancla minera con rosca en punta. Figura 2 - Vista isométrica superior frontal del ancla minera con rosca en punta. Figura 3 - Vista isométrica superior posterior del ancla minera con rosca en punta. Figure 1 .- Top isometric view of the mining anchor with pointed thread. Figure 2 - Isometric top front view of the mining anchor with pointed thread. Figure 3 - Rear upper isometric view of the mining anchor with pointed thread.
Figura 4.- Vista lateral del ancla minera con rosca en punta. Figure 4.- Side view of the mining anchor with pointed thread.
Figura 5.- Vista isométrica superior frontal del ancla minera con rosca en punta en despiece. Figure 5.- Isometric top front view of the mining anchor with exploded tip thread.
Figura 6.- Vista isométrica superior posterior de la tuerca del ancla minera con rosca en punta. Figure 6.- Rear upper isometric view of the mining anchor nut with pointed thread.
DESCRIPCIÓN DETALLADA DE LA INVENCIÓN. DETAILED DESCRIPTION OF THE INVENTION.
El ancla minera con rosca en punta (Figura 1) es elaborada a partir de varilla corrugada de acero, a la cual le es fabricada una rosca tipo ACME (1 : Figura 4) la cual es una rosca estándar rectangular o cuadrada en 8" (20.32 mm) de longitud del ancla minera, la cual evita daños en la misma para que opere adecuadamente cuando es instalada y cuando requiera mantenimiento. El ancla minera con rosca en punta puede ser elaborada en longitudes que van desde Sos 1 .6 mts hasta una longitud mayor a los 3.0 mts, y esto es de acuerdo a la calidad de la roca del macizo rocoso, siendo que si es de buena calidad serán de menor tamaño y si el terreno es de mala a muy mala calidad se requerirán de una longitud mayor. El diámetro recomendado para este tipo de ancla minera es de 3/4" (19.05 mm). The mining anchor with pointed thread (Figure 1) is made from corrugated steel rod, to which an ACME type thread (1: Figure 4) is made, which is a standard rectangular or square 8 "thread ( 20.32 mm) in length of the mining anchor, which prevents damage to it so that it operates properly when it is installed and requires maintenance.The mining anchor with pointed thread can be made in lengths ranging from Sos 1 .6 mts up to length greater than 3.0 meters, and this is according to the quality of the rock of the rock mass, being that if it is of good quality they will be of smaller size and if the terrain is of bad to very poor quality they will require a longer length The recommended diameter for this type of mining anchor is 3/4 "(19.05 mm).
El ancla minera con rosca continua complementada con una tuerca (Figura 6) de rosca igual a la que mantiene el ancla minera con rosca en punta, de tal manera que puede ajustarse en cualquier punto de la longitud de la rosca. The mining anchor with a continuous thread complemented by a nut (Figure 6) with the same thread as the one that maintains the mining anchor with a pointed thread, so that it can be adjusted at any point along the thread length.
MEJOR MANERA DE LLEVAR A CABO LA INVENCIÓN BETTER WAY TO CARRY OUT THE INVENTION
Se realiza una perforación en la obra subterránea de la industria minera, se insertan cartuchos de resina o cementantes en el interior de la perforación, posteriormente se coloca el ancla minera con rosca en punta en el equipo
manual o mecanizado que la insertara en la perforación y se introduce la placa minera en e! ancla, en seguida se procede a la inserción del ancla minera con rosca en punta hasta el fondo de la perforación, de tal manera que la placa colocada en el extremo frontal quede adherida adecuadamente al macizo rocoso para evitar el desprendimiento de roca que pone en riesgo la salud del personal que opera en este tipo de obras subterráneas de la industria minera. A drilling is carried out in the underground work of the mining industry, resin or cement cartridges are inserted inside the drilling, then the mining anchor with pointed thread is placed in the equipment manual or mechanized that will insert it into the drilling and the mining plate is inserted into e! Anchor, the mining anchor is then inserted with a pointed thread to the bottom of the hole, so that the plate placed at the front end is properly adhered to the rock mass to avoid the release of rock that puts at risk the health of the personnel that operates in this type of underground works of the mining industry.
Una vez colocada el ancla minera con rosca en punta en el macizo rocoso será verificada periódicamente, de tal manera que se revise si se ha llevado a cabo caídos de roca en el perímetro cercano del ancla minera con rosca en punta, si esto sucede ser deberá ajustar la tuerca hasta adherir la placa minera hasta dejarla nuevamente adherida al macizo rocoso para que mantenga la resistencia para evitar caídos de roca.
Once the mining anchor with pointed thread is placed in the rock mass, it will be checked periodically, so that it is checked whether rock falls have been carried out in the near perimeter of the mining anchor with pointed thread, if this happens it should be adjust the nut until the mining plate adheres until it is again adhered to the rock mass to maintain the resistance to avoid rock falls.
Claims
1. Ancla minera con rosca en punta que se inserta en perforaciones previamente realizadas en los túneles subterráneos de la industria minera CARACTERIZADO por tener una rosca estándar en extremo frontal tipo rectangular o cuadrada la cual evita daños prematuros y posteriores a su instalación, cuenta con un corte a 45° para romper y mezclar cartuchos cementantes o de resina y además con una tuerca de rosca similar a la del ancla minera cual puede hacer el recorrido en la longitud de la rosca del ancla minera con rosca en punta. 1. Mining anchor with pointed thread that is inserted in perforations previously carried out in the underground tunnels of the mining industry CHARACTERIZED by having a standard thread at the front end rectangular or square type which prevents premature and post-installation damage, has a 45 ° cut to break and mix cement or resin cartridges and also with a screw nut similar to that of the mining anchor which can travel the length of the mining anchor thread with pointed thread.
2. Ancla minera con rosca en punta que de acuerdo a la reivindicación 1 caracterizado porque es manejada en longitudes que van desde los 1.60 mts hasta longitudes mayores a los 3.0 mts, y que se designa de acuerdo a la calidad de la roca de los túneles subterráneos de la industria minera donde se instalaran. 2. Mining anchor with pointed thread according to claim 1 characterized in that it is handled in lengths ranging from 1.60 meters to lengths greater than 3.0 meters, and which is designated according to the quality of the rock of the tunnels underground of the mining industry where they will be installed.
3. Ancla minera con rosca en punta que de acuerdo a la reivindicación 1 caracterizado porque cuenta con rosca estándar en el extremo frontal tipo rectangular o cuadrada a lo largo del ancla minera, la cual permite evitar daños antes y después de haberse instalado. 3. Mining anchor with pointed thread according to claim 1 characterized in that it has a standard thread on the rectangular or square type front end along the mining anchor, which allows to avoid damage before and after having been installed.
4. Ancla minera con rosca en punta que de acuerdo a la reivindicación 1 caracterizado porque cuenta con un cuadro de acero en la parte frontal, al frente de la rosca del ancla minera (2 : Figura 2), este cuadro es forjado en caliente ai igual que la rosca para que pueda ser insertada con un dado de acero hacia la perforación realizada. 4. Mining anchor with pointed thread according to claim 1 characterized in that it has a steel frame in the front, in front of the thread of the mining anchor (2: Figure 2), this frame is hot forged ai same as the thread so that it can be inserted with a steel die towards the perforation performed.
5. Ancla minera con rosca en punta que de acuerdo a la reivindicación 1 caracterizado porque cuenta con un corte 45° en el extremo posterior el cual sirve para romper y mezclar los cartuchos cementantes o de resina
que se insertan previamente en la perforación donde se instalara el ancla minera con rosca en punta. 5. Mining anchor with pointed thread according to claim 1 characterized in that it has a 45 ° cut at the rear end which serves to break and mix cement or resin cartridges which are previously inserted in the hole where the mining anchor with pointed thread will be installed.
6. Ancla minera con rosca en punta que de acuerdo a la reivindicación 1 caracterizado porque cuenta co una tuerca la cual contiene rosca semejante a la del ancla lo que le permite recorrer la longitud de la rosca del ancla minera con rosca en punta.
6. Mining anchor with pointed thread according to claim 1 characterized in that it has a nut which contains thread similar to that of the anchor which allows it to travel the length of the thread of the mining anchor with pointed thread.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX2013000595 | 2013-11-15 | ||
| MXMX/U/2013/000595 | 2013-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015072828A1 true WO2015072828A1 (en) | 2015-05-21 |
Family
ID=53057689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/MX2013/000167 WO2015072828A1 (en) | 2013-11-15 | 2013-12-16 | Mining anchor with a threaded tip |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2015072828A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004106700A1 (en) * | 2003-06-03 | 2004-12-09 | Dunefire Pty Ltd | Rockbolt |
| GB2434626A (en) * | 2006-01-31 | 2007-08-01 | Raytheon Utd Inc | Rock bolt with modified tip geometry |
| WO2011087948A1 (en) * | 2010-01-14 | 2011-07-21 | Anthony John Spencer Spearing | Self-drilling expandable bolt |
| US20120155970A1 (en) * | 2010-12-15 | 2012-06-21 | Fci Holdings Delaware, Inc. | Mine Roof Bolt With End Fitting |
-
2013
- 2013-12-16 WO PCT/MX2013/000167 patent/WO2015072828A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004106700A1 (en) * | 2003-06-03 | 2004-12-09 | Dunefire Pty Ltd | Rockbolt |
| GB2434626A (en) * | 2006-01-31 | 2007-08-01 | Raytheon Utd Inc | Rock bolt with modified tip geometry |
| WO2011087948A1 (en) * | 2010-01-14 | 2011-07-21 | Anthony John Spencer Spearing | Self-drilling expandable bolt |
| US20120155970A1 (en) * | 2010-12-15 | 2012-06-21 | Fci Holdings Delaware, Inc. | Mine Roof Bolt With End Fitting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR0311505A (en) | Method and system for removing particles from a wellbore and method for drilling a wellbore | |
| MX2017005789A (en) | Implant for stabilizing fractured or non-fractured bones. | |
| WO2008087538A3 (en) | A versatile grout bag type of underground support | |
| MX2020003584A (en) | Fibergalss guard rail. | |
| WO2015072828A1 (en) | Mining anchor with a threaded tip | |
| WO2015072837A1 (en) | Mining anchor with a continuous thread | |
| WO2010133883A3 (en) | Rock bolt with separate mixing-and discharge head | |
| SA517381914B1 (en) | Downhole tool and system and method for the same | |
| WO2015072827A1 (en) | Mining anchor with a slotted tube | |
| EP3000963A1 (en) | Mine support assembly for anchoring in a bore hole in the form of an improved rock bolt | |
| DE102011120572A1 (en) | Drilling device for impact or rotary impact drilling with connecting sleeve | |
| AU2015266559A8 (en) | Ground improvement method | |
| MX2020013877A (en) | Anchors and methods for anchoring an underground storage tank. | |
| WO2015072830A1 (en) | Resin cartridge for a mining anchor | |
| WO2015072836A1 (en) | Mining anchor with a short tube and rod | |
| GB2518135A (en) | A ground pile assembly | |
| WO2015072841A1 (en) | Fibreglass mining anchor | |
| WO2015072825A1 (en) | Mining anchor with a slotted tube and rod | |
| WO2015072829A1 (en) | Mining anchor with a soldered ring | |
| KR200367569Y1 (en) | Fixing device for form | |
| WO2015072826A1 (en) | Mining anchor with an omega-type ring | |
| CN104018878B (en) | Manufacture and the installation method of anchor rod type tunnel stock retaining wall | |
| CN104005789A (en) | Anchor rod type roadway material-blocking wall | |
| BR112014028791A2 (en) | reinforced land | |
| CN203856509U (en) | Anchor rod type roadway material blocking wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13897562 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 13897562 Country of ref document: EP Kind code of ref document: A1 |