EP0398838B1 - Injection tube with anchor effect - Google Patents
Injection tube with anchor effect Download PDFInfo
- Publication number
- EP0398838B1 EP0398838B1 EP90630104A EP90630104A EP0398838B1 EP 0398838 B1 EP0398838 B1 EP 0398838B1 EP 90630104 A EP90630104 A EP 90630104A EP 90630104 A EP90630104 A EP 90630104A EP 0398838 B1 EP0398838 B1 EP 0398838B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injection
- borehole
- roof
- injection tube
- bolt stem
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000002347 injection Methods 0.000 title claims abstract description 45
- 239000007924 injection Substances 0.000 title claims abstract description 45
- 230000000694 effects Effects 0.000 title description 7
- 239000011435 rock Substances 0.000 claims abstract description 8
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 4
- 239000000057 synthetic resin Substances 0.000 claims abstract description 4
- 230000009172 bursting Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000008961 swelling Effects 0.000 claims 1
- 238000007596 consolidation process Methods 0.000 abstract description 2
- 230000027455 binding Effects 0.000 abstract 1
- 238000009739 binding Methods 0.000 abstract 1
- 238000007664 blowing Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
Definitions
- the invention relates to an injection tube for injecting media particularly suitable for rock solidification, such as synthetic resin, which essentially consists of a tube that can be inserted into a borehole and is provided with a borehole closure and a first check valve, the tube being designed as an anchor rod and having one end with a thread is formed.
- the injection lances consist of pipe sections which can be connected to one another via sleeves and each have a connection for the trailing lines of a two-component synthetic resin, for example, and a check valve in the deepest hole at the ends facing the mouth of the borehole.
- a mechanically actuable borehole closure is provided in sections via sleeves around an injection pipe.
- the mechanical borehole closure is widened by rotating the injection pipe until it bears against the borehole wall.
- Anchors are often used to stabilize the mountains. Their gluing with cartridges is particularly difficult when the mountains are loosened, which essentially consists in the fact that the cartridges often cannot be inserted into the borehole. In such cases, full bonding of the anchor cannot be guaranteed.
- the invention is based on the object of combining rock consolidation by injection with the additional stabilization of the rock by an anchor effect in a labor-saving and economical manner.
- an injection head is provided in the threaded end of the anchor rod, in which the first check valve is arranged and a rupture disc is arranged towards the other end of the anchor rod, and that the borehole closure as a surrounding the anchor rod and at the ends of the inflatable hose section held by covers is formed with a second check valve integrated between the anchor rod and the inflation chamber.
- the injection pipe designed as an anchor rod
- the injection pipe is inserted into a borehole in the appropriate design, based on the wall thickness and the corresponding steel, so that the so-called hydraulic inflatable packer is located in the region of the borehole mouth.
- the required injection pressure is applied to the anchor rod.
- the rupture disc provided at the end of the anchor rod causes such a high back pressure to form within the anchor rod that the check valve provided between the anchor rod and the inflation chamber of the borehole closure opens and the inflation process begins. This check valve prevents the pressure from relaxing after sealing Borehole closure when the rupture disc breaks and the injection medium escapes into the borehole.
- the entire borehole is filled above the borehole closure.
- the injection tube designed as an anchor rod is completely glued after the injection agent has hardened.
- the rupture disc can be adapted to the requirements of the mountains, dimensioned to different bursting pressures and can also be arranged in the anchor rod behind the borehole closure. In addition to the outlet at the end of the anchor rod, this can be provided with additional outlet openings over its length.
- the check valve according to the known principle of a bicycle valve should have at least one opening in the anchor rod, which is sealed off from the inflation space by a flexible sleeve.
- a flexible sleeve In order to achieve a faster blowing effect and thus filling the blowing space, it has proven to be advantageous to provide a plurality of openings in the anchor rod distributed over the circumference which are covered by a common sleeve.
- the injection tube attached in this way provides an injection anchor that can be approved as an expansion part with a defined support force.
- the injection tube is made of simple steel and provided with a cut thread as an effective injection tube, which is not approved as an anchor, contains an anchor-comparable effect and thus represents an inexpensive removal agent with a high expansion effect.
- the particular advantage of the anchor rod according to the invention is that, in addition to a reliable injection with a secure borehole seal, a high level of compensation for the rock is achieved by simultaneous anchoring against high injection pressures. In contrast to the injection alone, a predictable load capacity is introduced into the mountains, which depends on the load capacity of the injection tube. Depends on the anchor tube and results from the stiffening of the anchored layers and the dowelling of broken layers on solid layers.
- the injection tube designed as an anchor rod 1 is shown in section.
- the anchor rod 1 has a rolled-up thread 2 at the end facing the mouth of the borehole and a check valve 4 in the injection head 3.
- the embodiment shown in the figures is provided at the end facing the deepest hole with a rupture disk 5 screwed onto a thread.
- a borehole closure 6 is placed on the anchor rod 1, which essentially consists of an elastic hose section 8, which is connected to the ends opposite the anchor rod 1 is locked in position by covers 7.
- the blowing space 9 is formed between the anchor rod and the hose section 8.
- a check valve 10 is provided, which is essentially formed from at least one opening 11 in the anchor rod 1, which is covered within a recess 13 by a flexible sleeve 12.
- the anchor rod 1 is provided to introduce four openings 11 distributed over the circumference in the anchor rod 1, each of which is covered by a common sleeve 12.
- the borehole wall 15 is also indicated, against which the inflated hose section 8 bears for the complete sealing of the borehole.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Soil Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Dowels (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
Die Erfindung betrifft ein Injektionsrohr zum Injizieren von insbesondere zur Gebirgsverfestigung geeigneten Medien, wie beispielsweise Kunstharz, das im wesentlichen aus einem in ein Bohrloch einführbares und mit einem Bohrlochverschluß sowie einem ersten Rückschlagventil versehenes Rohr besteht, wobei das Rohr als Ankerstange ausgebildet und an einem Ende mit einem Gewinde ausgebildet ist.The invention relates to an injection tube for injecting media particularly suitable for rock solidification, such as synthetic resin, which essentially consists of a tube that can be inserted into a borehole and is provided with a borehole closure and a first check valve, the tube being designed as an anchor rod and having one end with a thread is formed.
Besonders im Streb, an Strebrändern und geologischen Störungen ist es notwendig, das aufgelockerte Gebirge durch Injektion mit Verfestigungsmitteln zu verkleben. Dabei wird mit mit Injektionslanzen versehenen sogenannten packern gearbeitet. Die Durchdringung des aufgelockerten Gebirges ist von Zufälligkeiten abhängig, wobei die Injektion den größten Öffnungen im Gebirge folgt. Oft tritt Injektionsmaterial frühzeitig an breiten Rissen aus, so daß die Injektion in diesem Bereich beendet werden muß. Die Injektionslanzen bestehen aus über Muffen miteinander verbindbaren Rohrabschnitten und weisen an den zum Bohrlochmund gerichteten Enden jeweils einen Anschluß für die Schleppleitungen eines beispielsweise Zweikomponentenkunstharzes und im Bohrlochtiefsten ein Rückschlagventil auf. Im Bereich des Bohrlochmundes ist abschnittsartig über Muffen um ein Injektionsrohr ein mechanisch betätigbarer Bohrlochverschluß vorgesehen. Durch eine am bohrlochmundseitigen Ende auf dem Injektionsrohr angebrachte Mutter wird der mechanische Bohrlochverschluß durch Drehung des Injektionsrohres bis zum Anliegen an die Bohrlochwandung aufgeweitet. Ein solches Injektionsrohr mit den Merkmalen des Oberbegriffes des Anspruches 1 ist aus der AT-B-366 777 bekannt, die einen Bohrlochverschluß beschreibt, der auch als Spreizanker zu verwenden ist.Especially in longwall, on longwall and geological disturbances, it is necessary to glue the loosened rock by injection with hardening agents. Here, so-called packers with injection lances are used. The penetration of the loosened mountains depends on coincidences, with the injection following the largest openings in the mountains. Injection material often emerges from wide cracks at an early stage, so that the injection must be stopped in this area. The injection lances consist of pipe sections which can be connected to one another via sleeves and each have a connection for the trailing lines of a two-component synthetic resin, for example, and a check valve in the deepest hole at the ends facing the mouth of the borehole. In the area of the mouth of the borehole, a mechanically actuable borehole closure is provided in sections via sleeves around an injection pipe. By means of a nut attached to the injection pipe at the end of the borehole mouth, the mechanical borehole closure is widened by rotating the injection pipe until it bears against the borehole wall. Such an injection tube with the features of the preamble of claim 1 is known from AT-B-366 777, which describes a borehole closure which can also be used as an expansion anchor.
Zur zusätzlichen Stabilisierung des Gebirges werden auch häufig Anker gesetzt. Deren Verklebung mit Patronen bereitet besonders bei aufgelockertem Gebirge große Schwierigkeiten, die im wesentlichen darin bestehen, daß die Patronen sich häufig nicht in das Bohrloch einbringen lassen. In derartigen Fällen ist eine Vollverklebung des Ankers nicht gewährleistbar.Anchors are often used to stabilize the mountains. Their gluing with cartridges is particularly difficult when the mountains are loosened, which essentially consists in the fact that the cartridges often cannot be inserted into the borehole. In such cases, full bonding of the anchor cannot be guaranteed.
Der Erfindung liegt nunmehr die Aufgabe zugrunde, die Gebirgsverfestigung durch Injektion mit der zusätzlichen Stabilisierung des Gebirges durch eine Ankerwirkung in arbeitssparender und wirtschaftlicher Weise zu verbinden.The invention is based on the object of combining rock consolidation by injection with the additional stabilization of the rock by an anchor effect in a labor-saving and economical manner.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß an dem mit dem Gewinde versehenen Ende der Ankerstange ein Injektionskopf vorgesehen ist, in dem das erste Rückschlagventil angeordnet ist und zum anderen Ende der Ankerstange hin eine Berstscheibe angeordnet ist, und daß der Bohrlochverschluß als ein die Ankerstange umgebender und an den Enden durch Einbände gehaltener aufblähbarer Schlauchabschnitt mit einem zwischen Ankerstange und Blähraum integriertem zweiten Rückschlagventil ausgebildet ist.The object is achieved in that an injection head is provided in the threaded end of the anchor rod, in which the first check valve is arranged and a rupture disc is arranged towards the other end of the anchor rod, and that the borehole closure as a surrounding the anchor rod and at the ends of the inflatable hose section held by covers is formed with a second check valve integrated between the anchor rod and the inflation chamber.
Nach Erstellen eines Bohrloches wird das als Ankerstange ausgebildete Injektionsrohr in der entsprechenden Auslegung, bezogen auf die Wandstärke und den entsprechenden Stahl, soweit in ein Bohrloch eingeführt, daß sich der sogenannte hydraulische Blähpacker im Bereich des Bohrlochmundes befindet. Nach dem Aufsetzen des Injektionskopfes wird die Ankerstange mit dem erforderlichen Injektionsdruck beaufschlagt. Die am Ende der Ankerstange vorgesehene Berstscheibe bewirkt, daß sich innerhalb der Ankerstange ein derartig hoher Staudruck bildet, daß zunächst das zwischen Ankerstange und Blähraum des Bohrlochverschlusses vorgesehene Rückschlagventil sich öffnet und der Aufblähvorgang beginnt. Dieses Rückschlagventil verhindert nach der Abdichtung das Entspannen des Bohrlochverschlusses, wenn die Berstscheibe bricht und das Injektionsmedium in das Bohrloch austritt. Mit dem Injizieren des Gebirges wird eine Verfüllung des gesamten Bohrlochs oberhalb des Bohrlochverschlusses bewirkt. Auf diese Weise ist das als Ankerstange ausgebildete Injektionsrohr nach dem Aushärten des Injektionsmittels vollständig verklebt. Die Berstscheibe kann den Erfordernissen des Gebirges angepaßt, auf unterschiedliche Berstdrücke dimensioniert und auch in der Ankerstange hinter dem Bohrlochverschluß angeordnet werden. Zusätzlich zu dem Austritt am Ende der Ankerstange kann diese über ihre Länge mit zusätzlichen Austrittsöffnungen versehen werden.After creating a borehole, the injection pipe, designed as an anchor rod, is inserted into a borehole in the appropriate design, based on the wall thickness and the corresponding steel, so that the so-called hydraulic inflatable packer is located in the region of the borehole mouth. After attaching the injection head, the required injection pressure is applied to the anchor rod. The rupture disc provided at the end of the anchor rod causes such a high back pressure to form within the anchor rod that the check valve provided between the anchor rod and the inflation chamber of the borehole closure opens and the inflation process begins. This check valve prevents the pressure from relaxing after sealing Borehole closure when the rupture disc breaks and the injection medium escapes into the borehole. When the rock is injected, the entire borehole is filled above the borehole closure. In this way, the injection tube designed as an anchor rod is completely glued after the injection agent has hardened. The rupture disc can be adapted to the requirements of the mountains, dimensioned to different bursting pressures and can also be arranged in the anchor rod behind the borehole closure. In addition to the outlet at the end of the anchor rod, this can be provided with additional outlet openings over its length.
Das Rückschlagventil nach dem bekannten Prinzip eines Fahrradventils, sollte mindestens eine Öffnung in der Ankerstange aufweisen, die durch eine nachgiebige Manschette gegenüber dem Blähraum abgedichtet wird. Um eine schnellere Blähwirkung und somit Verfüllung des Blähraumes zu erzielen, erweist es sich als vorteilhaft, über den Umfang verteilt, mehrere Öffnungen in der Ankerstange vorzusehen, die über eine gemeinsame Manschette abgedeckt werden. Das derartig angebrachte Injektionsrohr stellt einen Injektionsanker, der als Ausbauteil mit definierter Stützkraft zugelassen werden kann. Um die Wirkung der Ankerstange zu erhöhen erweist es sich weiterhin als vorteilhaft, diese zwischen Bohrlochverschluß und Bohrlochtiefstem mit einem Haftprofil zu versehen. Darüber hinaus sollte es möglich sein, die üblicherweise auf eine Länge von beispielsweise 2,20 m zugeschnittenen Ankerstangen über entsprechende Muffen und Ankerabschnitte verlängerbar auszubilden.The check valve according to the known principle of a bicycle valve should have at least one opening in the anchor rod, which is sealed off from the inflation space by a flexible sleeve. In order to achieve a faster blowing effect and thus filling the blowing space, it has proven to be advantageous to provide a plurality of openings in the anchor rod distributed over the circumference which are covered by a common sleeve. The injection tube attached in this way provides an injection anchor that can be approved as an expansion part with a defined support force. In order to increase the effect of the anchor rod, it also proves to be advantageous to provide it with an adhesive profile between the borehole closure and the borehole deepest. In addition, it should be possible to extend the anchor rods, which are usually cut to a length of, for example, 2.20 m, by means of corresponding sleeves and anchor sections.
Nach einer weiteren Ausbildung der Erfindung ist das Injektionsrohr aus einfachem Stahl hergestellt und mit einem geschnittenen Gewinde versehen als effektives Injektionsrohr vorgesehen, das nicht als Anker zugelassen, eine ankervergleichbare Wirkung beinhaltet und auf diese Weise ein preiswertes Ausbaumittel mit hoher Ausbauwirkung darstellt.According to a further embodiment of the invention, the injection tube is made of simple steel and provided with a cut thread as an effective injection tube, which is not approved as an anchor, contains an anchor-comparable effect and thus represents an inexpensive removal agent with a high expansion effect.
Der besondere Vorteil der erfindungsgemäßen Ankerstange besteht darin, neben einer zuverlässigen Injektion mit sicherer Bohrlochabdichtung auch gegen hohe Injektionsdrücke eine hohe Vergütung des Gebirges durch gleichzeitige Ankerung zu erreichen. Im Gegensatz zur Injektion allein wird dadurch eine berechenbare Tragkraft in das Gebirge eingeleitet, die von der Tragkraft des Injektionsrohres bwz. Ankerrohres abhängt und aus der Versteifung der geankerten Schichten und der Dübelung gebrächer Schichten an festen Schichten resultiert.The particular advantage of the anchor rod according to the invention is that, in addition to a reliable injection with a secure borehole seal, a high level of compensation for the rock is achieved by simultaneous anchoring against high injection pressures. In contrast to the injection alone, a predictable load capacity is introduced into the mountains, which depends on the load capacity of the injection tube. Depends on the anchor tube and results from the stiffening of the anchored layers and the dowelling of broken layers on solid layers.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher erläutert. Es zeigen :
- Figur 1 eine schematisierte und teilweise Darstellung eines Injektionsrohres mit Ankerwirkung im Schnitt und
Figur 2 einen Schnitt nach den Linien A - B in Figur 1.
- Figure 1 is a schematic and partial representation of an injection tube with anchor effect in section and
- FIG. 2 shows a section along lines A - B in FIG. 1.
In Figur 1 ist das als Ankerstange 1 ausgebildete Injektionrohr im Schnitt dargestellt. Die Ankerstange 1 weist an dem zum Bohrlochmund gerichteten Ende ein aufgerolltes Gewinde 2 und im Injektionskopf 3 ein Rückschlagventil 4 auf. Das in den Figuren dargestellte Ausführungsbeispiel ist an dem zum Bohrlochtiefsten gerichteten Ende mit einer auf ein Gewinde aufgeschraubten Berstscheibe 5 versehen. Im Bereich des Bohrlochmundes ist auf die Ankerstange 1 ein Bohrlochverschluß 6 aufgesetzt, der im wesentlichen aus einem elastischen Schlauchabschnitt 8 besteht, der an den Enden gegenüber der Ankerstange 1 über Einbände 7 in seiner Position arretiert ist. Zwischen der Ankerstange und dem Schlauchabschnitt 8 wird der Blähraum 9 gebildet. Um einen Rückstrom des Injektionsmaterials aus dem Blähraum 9 zu vermeiden, ist ein Rückschlagventil 10 vorgesehen, das im wesentlichen aus mindestens einer Öffnung 11 in der Ankerstange 1 gebildet wird, welche innerhalb einer Ausnehmung 13 durch eine nachgiebige Manschette 12 abgedeckt wird. Wie weiterhin aus dem Schnitt nach den Linien A - B in Figur 2 zu entnehmen ist, ist in einem Ausführungsbeispiel der Ankerstange 1 vorgesehen, über den Umfang verteilt vier Öffnungen 11 in die Ankerstange 1 einzubringen, die jeweils über eine gemeinsame Manschette 12 abgedeckt werden. In der Figur 2 ist weiterhin die Bohrlochwandung 15 angedeutet, an welche sich der aufgeblähte Schlauchabschnitt 8 zur vollständigen Abdichtung des Bohrlochs anlegt.In Figure 1, the injection tube designed as an anchor rod 1 is shown in section. The anchor rod 1 has a rolled-up
Claims (7)
- Injection tube for injection of media, in particular those suitable for consolidating rocks such as synthetic resin, which essentially consists of a tube which is inserted into a borehole and provided with a borehole closure (6) and a first non-return valve (4), in which respect the tube is arranged as a roof-bolt stem (1) and at its end equipped with a thread (2), characterised in that at the threaded (2) end of the roof-bolt stem is provided an injection head (3) in which the first non-return valve (4) is arranged, and in that towards the other end of the roof-bolt stem (1) is placed a bursting disc (5), and that the borehole closure (6) is arranged as a swellable hose section (8), which surrounds the roof-bolt stem (1) and is held at the ends by swages (7), with a second non-return valve (10) integrated between roof-bolt stem (1) and swelling space (9).
- Injection tube according to claim 1, characterised in that the second non-return valve (10) is arranged as a resilient cup seal (12) which surrounds at least one opening (11) of the roof-bolt stem (1).
- Injection tube according to claim 1, characterised in that a plurality of openings (11) which are surrounded by the cup seal (12) are peripherally evenly spaced in the roof-bolt stem (1).
- Injection tube according to claim 1, character ised in that the roof-bolt stem (1) is provided with an adhesive profile (14) between the bore-hole closure (6) and its other end.
- Injection tube according to claim 1, characterised in that the roof-bolt stem (1) is extendable by way of sleeves which are screwed on via the thread and respective anchor sections.
- Injection tube according to claim 1, characterised in that the tube is made of high quality steel and that the thread (2) is rolled on top
- Injection tube according to claim 1, characterised in that the tube is made of common steel and that the thread (2) is cut into the tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT90630104T ATE98742T1 (en) | 1989-05-18 | 1990-05-10 | ANCHORING INJECTION TUBE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8906126U | 1989-05-18 | ||
| DE8906126U DE8906126U1 (en) | 1989-05-18 | 1989-05-18 | Injection pipe with anchor effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0398838A1 EP0398838A1 (en) | 1990-11-22 |
| EP0398838B1 true EP0398838B1 (en) | 1993-12-15 |
Family
ID=6839296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90630104A Expired - Lifetime EP0398838B1 (en) | 1989-05-18 | 1990-05-10 | Injection tube with anchor effect |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0398838B1 (en) |
| AT (1) | ATE98742T1 (en) |
| AU (1) | AU628540B2 (en) |
| DE (2) | DE8906126U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206234A (en) * | 2013-01-30 | 2013-07-17 | 河北联合大学 | Check anti-water-bursting grouting rock bolt |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9004177U1 (en) * | 1990-04-11 | 1990-06-28 | Bergwerksverband Gmbh, 4300 Essen | Injection drilling anchor |
| DE9004176U1 (en) * | 1990-04-11 | 1990-06-28 | Bergwerksverband Gmbh, 4300 Essen | Injection drilling anchor with transport screw |
| DE4128154C2 (en) * | 1991-07-02 | 1994-06-16 | Gd Anker Gmbh & Co Kg | Injection tube and method for placing a rock anchor |
| AU650349B2 (en) * | 1991-07-02 | 1994-06-16 | Gd-Anker Gmbh | Injection pipe and process for setting a rock anchor |
| DE4209802C1 (en) * | 1992-03-26 | 1993-08-26 | Schmidt, Kranz & Co Gmbh Zweigniederlassung Zorge, 3421 Zorge, De | Rock or masonry sealant injection tube - has bursting disc retained by securing ring in counterbored and externally conical discharge end |
| DE4242106C2 (en) * | 1992-12-14 | 2003-11-13 | Ischebeck Friedrich Gmbh | Inflatable packer for injection anchors, injection drill anchors or the like for closing holes, in particular earth boreholes |
| DE10135159C1 (en) | 2001-07-19 | 2002-10-31 | Schmidt & Co Gmbh Kranz | Borehole plugging system for use in tunneling and mining work uses inflatable balloon held on metal tube by clamping rings at either end |
| DE10236257A1 (en) * | 2002-08-09 | 2004-02-26 | Stump Spezialtiefbau Gmbh | Ground jet system of suspension and air feed fits suspension outlets in end of nozzle support at angle to drillrod so suspension feeds via ball valve to outlets as nozzle support rotates. |
| EP1567733B1 (en) * | 2002-12-03 | 2010-02-10 | Weise + Strattner GmbH | Device and method for fastening façade plates |
| DE202007008940U1 (en) * | 2007-06-25 | 2007-10-11 | Minova Carbotech Gmbh | Borehole closure with integrated mixer |
| CH702595B1 (en) * | 2010-01-28 | 2018-09-14 | Kuechler Technik Ag | Drilling hole seal and self-drilling anchor with such a Bohrankerdichtung. |
| CA2762730C (en) * | 2011-12-23 | 2013-04-23 | Conrad Petrowsky | Combination burst-disc subassembly for horizontal and vertical well completions |
| CN104196486B (en) * | 2014-09-09 | 2016-08-24 | 中国石油化工股份有限公司 | A kind of negative pressure set packer |
| CN105221171A (en) * | 2015-10-23 | 2016-01-06 | 于守东 | A kind of anti-skidding self-styled cellular type grouting cable anchor |
| JP6430358B2 (en) * | 2015-12-09 | 2018-11-28 | 株式会社カテックス | Injection-type rock bolt, and method of reinforcing groundwork using the same |
| US11828132B2 (en) | 2022-02-28 | 2023-11-28 | Saudi Arabian Oil Company | Inflatable bridge plug |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2903137C3 (en) * | 1979-01-27 | 1982-02-18 | Bergwerksverband Gmbh, 4300 Essen | Tubular lost wellbore closure |
| NO159201C (en) * | 1980-09-08 | 1988-12-07 | Atlas Copco Ab | PROCEDURE FOR BOLTING IN MOUNTAIN AND COMBINED EXPANSION BOLT AND INSTALLATION DEVICE FOR SAME. |
| US4461600A (en) * | 1981-03-24 | 1984-07-24 | Willich Gmbh & Co. | Method of and device for solidifying rock in mine tunnels and the like |
| DE3138610C2 (en) * | 1981-09-29 | 1984-10-18 | Bergwerksverband Gmbh, 4300 Essen | Device for durable fastening of objects in boreholes |
| DD235161A3 (en) * | 1984-08-14 | 1986-04-30 | Sdag Wismut | DEVICE FOR INTRODUCING MULTICOMPONENT MIXTURES IN TECHNICAL DRILLING |
| CA1286129C (en) * | 1986-06-24 | 1991-07-16 | Inco Limited | Hardened material supported rock bolt and apparatus for installing same |
| DE3802286A1 (en) * | 1988-01-27 | 1989-08-03 | Willich F Gmbh & Co | Borehole plug with double piston |
-
1989
- 1989-05-18 DE DE8906126U patent/DE8906126U1/en not_active Expired - Lifetime
-
1990
- 1990-05-03 AU AU54662/90A patent/AU628540B2/en not_active Ceased
- 1990-05-10 DE DE90630104T patent/DE59003840D1/en not_active Expired - Lifetime
- 1990-05-10 EP EP90630104A patent/EP0398838B1/en not_active Expired - Lifetime
- 1990-05-10 AT AT90630104T patent/ATE98742T1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206234A (en) * | 2013-01-30 | 2013-07-17 | 河北联合大学 | Check anti-water-bursting grouting rock bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE98742T1 (en) | 1994-01-15 |
| DE59003840D1 (en) | 1994-01-27 |
| AU628540B2 (en) | 1992-09-17 |
| DE8906126U1 (en) | 1990-04-19 |
| EP0398838A1 (en) | 1990-11-22 |
| AU5466290A (en) | 1990-11-22 |
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