EP0020270B1 - Vorrichtung zum Vorbereiten und Stellen von Vergusszusammensetzungen - Google Patents
Vorrichtung zum Vorbereiten und Stellen von Vergusszusammensetzungen Download PDFInfo
- Publication number
- EP0020270B1 EP0020270B1 EP80400761A EP80400761A EP0020270B1 EP 0020270 B1 EP0020270 B1 EP 0020270B1 EP 80400761 A EP80400761 A EP 80400761A EP 80400761 A EP80400761 A EP 80400761A EP 0020270 B1 EP0020270 B1 EP 0020270B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cement
- water
- injection
- supply system
- sealing
- 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
Links
- 239000004568 cement Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 7
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1431—Arrangements for supplying particulate material comprising means for supplying an additional liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1481—Spray pistols or apparatus for discharging particulate material
- B05B7/149—Spray pistols or apparatus for discharging particulate material with separate inlets for a particulate material and a liquid to be sprayed
- B05B7/1495—Spray pistols or apparatus for discharging particulate material with separate inlets for a particulate material and a liquid to be sprayed and with separate outlets for the particulate material and the liquid
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
-
- 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
- E21D20/021—Grouting with inorganic components, e.g. cement
-
- 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
- E21D20/028—Devices or accesories for injecting a grouting liquid in a bore-hole
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G2021/049—Devices for both conveying and distributing concrete mixing nozzles specially adapted for conveying devices
Definitions
- the invention relates to a device for the preparation and installation of sealing charges for bolt rods of gallery walls. More specifically, the invention relates to a device allowing the preparation and the installation of sealing charges for bolt rods, directly inside the drilling holes intended to receive the bolt rods.
- the roofs and walls of the galleries are increasingly reinforced by the so-called bolting method, in preference to the traditional support method using wood or steel hangers.
- this bolting method a hole is generally drilled 20 to 60 mm in diameter, then a steel rod is sealed in this hole.
- the cement sealing process is more economical than the resin sealing process. It is particularly recommended in countries with a cold climate where the resin hardens until it becomes unusable or in countries with a warm climate where the resin is destroyed by polymerizing.
- cement fillers when sealing is carried out using cement fillers, the preparation of these fillers and their introduction into the previously drilled holes are long and delicate operations.
- cements used with setting accelerators have a very short lifespan when mixed with water, which makes the preparation and placement of loads even more delicate.
- the invention relates to a device intended for the preparation and placement of sealing charges directly inside the drilling holes of the bolt rods, characterized in that it comprises both a deformable pocket connected to a system of powder cement supply which is contained in a rigid enclosure connected to a fluid supply system and an injection cannula having a height such that the injection takes place at a sufficient depth inside the drilling hole, lined with an external wall over its entire height, supplied at its base with cement, via the deformable pocket, in its central part and with water in its annular part.
- the invention relates to a device for the separate introduction of cement and water, which constitute the sealing charge, directly into the hole intended to receive the rod to be sealed.
- the mixing between the water and the cement thus takes place in the drilling hole and is terminated by the rotary movement of introduction of the rod to be sealed.
- This device has the advantage of allowing precise dosing of the quantity of product according to the characteristics of the bolt and the hole drilled.
- a simple change of the flexible bag or the consecutive emptying of several volumes from the same bag makes it possible to vary or multiply the amount of load.
- FIG. 1 represents a section of the device and FIG. 2 represents a section of a drilling hole with the rod to be sealed.
- the dry cement is brought by pneumatic transport via the pipe 1.
- a tap 2 located on the pipe 1 allows the dry cement to arrive in the metering device 3.
- This metering device consists of a rigid enclosure 4 and a deformable pocket or bladder 5 made of a flexible material, such as rubber for example.
- the volume of this pocket is calculated to correspond to the cement load required to seal a rod.
- these unit charges are of the order of 100 to 300 g.
- a fluid such as water or 'oil, which is introduced through line 6 or discharged through line 7, a three-way valve 8 allowing communication with the rigid enclosure and the two supply lines and fluid withdrawal.
- the pipe 9 directs the dry cement to an injection cannula 11 lined with an external wall 13 in the drilling hole, by means of a three-way valve 10.
- the water circuit is constituted by line 12 provided with a calibration device 15 and by the annular space between lines 11 and 13. This water is generally brought under a pressure of 6 to 15 bars.
- the calibration device 15 is of the type known for controlling the flow of a fluid, for example a diaphragm or a perforated wall which can be changed to increase or decrease the flow of fluid per unit of time.
- a jack 14 allows the cannula to move in the hole drilled for the rod to be sealed, as shown at 21 in FIG. 2.
- a pipe 16 which opens into the injection cannula upstream of the three-way valve 10 relative to the cement circuit allows the introduction of air through the three-way valve 10.
- This introduction of air into the cannula d injection allows the latter to be purged in the event of prolonged shutdown of the device to avoid setting of the cement and its additives which causes blockage of the pipes.
- pressurized air is used, for example at 5 bars, with a flow rate of the order of 300-400 l / min.
- the duration of introduction of the air is calculated by a person skilled in the art in depending on the setting speed of the cement.
- the operation of this device is as follows.
- the tap 2 for the arrival of the cement is opened and the tap 8 on the pipe 7 at the same time as the tap 10 is closed towards the pipes 9 and 16: the dry cement pushed by the compressed air fills the bag 5.
- the valve 2 is then closed and the valve 10 is opened to put the line 9 in communication with the cannula 11.
- the valve 8 is also opened to put the fluid inlet line 6 in communication with the rigid enclosure 4.
- the cement is then ejected into the cannula 11.
- water is introduced into the annular space of the cannula, through the calibration device 15 which makes it possible to adjust the amount of water.
- This device can in particular be used with automatic bolting devices. It allows the wetting of dry cement directly in the previously drilled hole, the injection cannula being brought up to a third or half the height of the hole.
- FIG. 2 shows the drilling hole 21 into which the cement and the water are introduced. The cannula is removed and the sealing rod 22 is introduced by a rotary movement which completes the mixing of the constituents of the charge. It is held in place for the duration of the setting by a plastic plug 20 located under the support plate 23.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Secondary Cells (AREA)
- Nozzles (AREA)
- Cable Accessories (AREA)
- Rock Bolts (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Claims (1)
- Vorrichtung zum Zubereiten und Anordnen von zum Verankern von Schraubenschäften dienenden Materialchargen direkt im Inneren von Bohrlöchern, dadurch gekennzeichnet, daß sie sowohl eine an eine Beschikkungseinrichtung für Zementpulver angeschlossene deformierbare Tasche, die in einer mit einer Fluidbeschickungseinrichtung verbundenen starren Einfassung eingeschlossen ist, als auch eine Einspritzkanüle umfaßt, die eine solche Höhe aufweist, daß die Einspritzung in einer ausreichenden Tiefe im Inneren des Bohrloches stattfindet, und über ihre gesamte Höhe von einer äußeren Wandung umschlossen ist, wobei die Kanüle an der Basis in ihrem zentralen Teil mittels der deformierbaren Tasche mit Zement und in ihrem ringförmigen Teil mit Wasser beschickt wird.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT80400761T ATE2910T1 (de) | 1979-06-01 | 1980-05-29 | Vorrichtung zum vorbereiten und stellen von vergusszusammensetzungen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7914082 | 1979-06-01 | ||
FR7914082A FR2457721A1 (fr) | 1979-06-01 | 1979-06-01 | Dispositif destine a la preparation et a la mise en place de charges de scellement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0020270A1 EP0020270A1 (de) | 1980-12-10 |
EP0020270B1 true EP0020270B1 (de) | 1983-03-30 |
Family
ID=9226143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80400761A Expired EP0020270B1 (de) | 1979-06-01 | 1980-05-29 | Vorrichtung zum Vorbereiten und Stellen von Vergusszusammensetzungen |
Country Status (7)
Country | Link |
---|---|
US (1) | US4358227A (de) |
EP (1) | EP0020270B1 (de) |
JP (1) | JPS55161198A (de) |
AT (1) | ATE2910T1 (de) |
DE (1) | DE3062514D1 (de) |
FR (1) | FR2457721A1 (de) |
ZA (1) | ZA803193B (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA823019B (en) * | 1981-05-04 | 1983-06-29 | Terra Tek Inc | Roof bolt grouting system |
JPS61257600A (ja) * | 1985-05-10 | 1986-11-15 | 東急建設株式会社 | ロツクボルト等の施工方法と装置 |
DE3919102A1 (de) * | 1989-06-10 | 1990-12-13 | Ruhrkohle Ag | Verfahren zum verfestigen des gebirges ueber soforttragende moertelanker und entsprechender vorrichtung |
US6119904A (en) * | 1998-04-08 | 2000-09-19 | Micron Technology, Inc. | Liquid dispensing apparatus with nozzle |
KR100383453B1 (ko) * | 2000-07-19 | 2003-05-14 | 주식회사 삼보기술단 | 락 볼트 시공용 고정구 |
CN101586466B (zh) * | 2009-06-09 | 2011-04-06 | 广州市鲁班建筑有限公司 | 压力型锚杆 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US991814A (en) * | 1909-09-13 | 1911-05-09 | Mcelroy Shepherd Company | Apparatus for mixing and applying plastic or adhesive materials. |
FR918016A (fr) * | 1945-11-27 | 1947-01-28 | Omo Ag | Procédé et pistolet de pulvérisation pour la pulvérisation de ciment, plâtre, kaolin, et autres produits similaires |
US2829600A (en) * | 1955-03-23 | 1958-04-08 | Sveda Vladimir | Conveying semi-liquid, plastic, loose or paste-like materials |
DE1081818B (de) * | 1957-12-05 | 1960-05-12 | Benz & Hilgers Maschinenfabrik | Speichereinrichtung in der Fuellgutfoerderleitung einer Abfuell- und Verpackungsmaschine |
FR1334848A (fr) * | 1962-10-02 | 1963-08-09 | Dispositif pour la projection sous pression d'agents, en particulier de peinture | |
US3304126A (en) * | 1965-02-15 | 1967-02-14 | Gorman Rupp Co | Material handling apparatus and methods |
FR1524640A (fr) * | 1967-05-26 | 1968-05-10 | Quigley Co | Pistolet à réparer les fours |
US3434808A (en) * | 1967-12-21 | 1969-03-25 | Columbian Carbon | Method and means for pumping powdered solids |
US3712681A (en) * | 1971-11-18 | 1973-01-23 | Pfizer | Pneumatic conveying apparatus for light material |
IT951267B (it) * | 1972-04-08 | 1973-06-30 | Chiesa E | Dispositivo per il dosaggio auto matico di una pluralita di impasti diversi per mattonelle o simili |
FR2208313A5 (de) * | 1972-11-27 | 1974-06-21 | Applic Gaz Sa | |
DE2410212A1 (de) * | 1974-02-19 | 1975-09-04 | Hinteregger Ohg R U A | Verschlussvorrichtung fuer kunststoffinjektionen in bohrloecher beim sicherungsverbau sowie unter und ueber tag und verfahren zur herstellung eines verbundverbaus als gebirgssicherung im unter- und uebertagebau |
US4116368A (en) * | 1976-12-16 | 1978-09-26 | The United States Of America As Represented By The Secretary Of The Interior | Clog-free inorganic grout emplacement gun |
FR2384549A1 (fr) * | 1977-02-07 | 1978-10-20 | Raffenaud Bernard | Procede et appareil de projection simultane de liant et de produits secs |
-
1979
- 1979-06-01 FR FR7914082A patent/FR2457721A1/fr active Granted
-
1980
- 1980-05-28 ZA ZA00803193A patent/ZA803193B/xx unknown
- 1980-05-29 EP EP80400761A patent/EP0020270B1/de not_active Expired
- 1980-05-29 AT AT80400761T patent/ATE2910T1/de not_active IP Right Cessation
- 1980-05-29 DE DE8080400761T patent/DE3062514D1/de not_active Expired
- 1980-06-02 JP JP7411680A patent/JPS55161198A/ja active Pending
- 1980-06-02 US US06/155,236 patent/US4358227A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4358227A (en) | 1982-11-09 |
FR2457721B1 (de) | 1982-05-21 |
EP0020270A1 (de) | 1980-12-10 |
DE3062514D1 (en) | 1983-05-05 |
JPS55161198A (en) | 1980-12-15 |
ATE2910T1 (de) | 1983-04-15 |
FR2457721A1 (fr) | 1980-12-26 |
ZA803193B (en) | 1981-05-27 |
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