GB1312904A - Rock bolting - Google Patents
Rock boltingInfo
- Publication number
- GB1312904A GB1312904A GB474971A GB1312904DA GB1312904A GB 1312904 A GB1312904 A GB 1312904A GB 474971 A GB474971 A GB 474971A GB 1312904D A GB1312904D A GB 1312904DA GB 1312904 A GB1312904 A GB 1312904A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- bolt
- particulate material
- bore
- capsules
- 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
- 239000011435 rock Substances 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 8
- 239000002775 capsule Substances 0.000 abstract 6
- 239000011236 particulate material Substances 0.000 abstract 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract 2
- 239000002131 composite material Substances 0.000 abstract 2
- 229910052602 gypsum Inorganic materials 0.000 abstract 2
- 239000010440 gypsum Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract 2
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 abstract 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- 229920002125 Sokalan® Polymers 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 229940072056 alginate Drugs 0.000 abstract 1
- 235000010443 alginic acid Nutrition 0.000 abstract 1
- 229920000615 alginic acid Polymers 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 abstract 1
- 239000004067 bulking agent Substances 0.000 abstract 1
- 239000001768 carboxy methyl cellulose Substances 0.000 abstract 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 abstract 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 abstract 1
- 229940105329 carboxymethylcellulose Drugs 0.000 abstract 1
- 239000004568 cement Substances 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 229920006248 expandable polystyrene Polymers 0.000 abstract 1
- 229920002457 flexible plastic Polymers 0.000 abstract 1
- 235000013312 flour Nutrition 0.000 abstract 1
- 239000010881 fly ash Substances 0.000 abstract 1
- 230000008014 freezing Effects 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 239000003349 gelling agent Substances 0.000 abstract 1
- 239000003112 inhibitor Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 239000004584 polyacrylic acid Substances 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- 239000000344 soap Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Joining Of Building Structures In Genera (AREA)
- Piles And Underground Anchors (AREA)
Abstract
1312904 Anchoring bolts STRATA MINING PATENTS Ltd 8 Feb 1972 [16 Feb 1971 10 May 1971] 4749/71 and 14040/71 Heading F2H An anchor bolt is set in a bore in a structure by inserting into the bore water and a quantity of particulate material consisting at least partly of a gypsum and aluminous cement mixture in which the gypsum content is between 30 and 70% by weight, in a manner keeping the water and particulate material apart, preferably by using separate capsules, and then inserting and rotating the bolt to mix the water and particulate material, the mixture setting to anchor the bolt in the bore. An inert bulking agent such as fly ash, wood flour, or foamed polystyrene may additionally be present so that the bolt can be set underwater. A gelling agent such as an alginate, polyvinyl alcohol, polyacrylic acid, carboxy methyl cellulose, or a metallic soap may be added to the water to increase its viscosity so that the method can be used to set a bolt in a ceiling. Freezing or corrosion inhibitors may also be added to the water, particularly if an iron or steel bolt is used. The ratio by volume of particulate material to water is between 1 : 1 and 5 : 1, preferably between 2 : 1 and 4 : 1. The water and particulate material are inserted into the bore in separate capsules which may be made of a brittle material such as unplasticized polystyrene. The capsules may be joined to form a composite container in which case the water capsule may have a flexible plastics wall and be contained within the capsule of particulate material, the latter being made of a water-soluble substance such as polyvinyl alcohol. Alternatively the two capsules in the composite container may be positioned side-byside, the container having a cylindrical shape.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB474971 | 1971-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1312904A true GB1312904A (en) | 1973-04-11 |
Family
ID=9783069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB474971A Expired GB1312904A (en) | 1971-02-16 | 1971-02-16 | Rock bolting |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB1312904A (en) |
| ZA (1) | ZA72863B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114384A (en) | 1975-11-05 | 1978-09-19 | Imperial Chemical Industries Limited | Method of securing fixing elements in rock |
| DE3221046A1 (en) * | 1982-06-04 | 1983-12-08 | Wonisch AtV GmbH, 8860 Nördlingen | Plastic-based powder for mouldless dowelling |
| EP0117690A1 (en) * | 1983-02-18 | 1984-09-05 | E.I. Du Pont De Nemours And Company | Method of anchoring a bolt in a hole |
| DE4238177A1 (en) * | 1992-11-12 | 1994-05-19 | Fischer Artur Werke Gmbh | Composite anchor |
-
1971
- 1971-02-16 GB GB474971A patent/GB1312904A/en not_active Expired
-
1972
- 1972-02-10 ZA ZA720863A patent/ZA72863B/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114384A (en) | 1975-11-05 | 1978-09-19 | Imperial Chemical Industries Limited | Method of securing fixing elements in rock |
| DE3221046A1 (en) * | 1982-06-04 | 1983-12-08 | Wonisch AtV GmbH, 8860 Nördlingen | Plastic-based powder for mouldless dowelling |
| EP0117690A1 (en) * | 1983-02-18 | 1984-09-05 | E.I. Du Pont De Nemours And Company | Method of anchoring a bolt in a hole |
| DE4238177A1 (en) * | 1992-11-12 | 1994-05-19 | Fischer Artur Werke Gmbh | Composite anchor |
| US5953879A (en) * | 1992-11-12 | 1999-09-21 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Composite anchor |
| CN1054187C (en) * | 1992-11-12 | 2000-07-05 | 阿图尔-费希尔股份公司费希尔厂 | Anchor of composite form |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA72863B (en) | 1972-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |