GB554077A - Improvements in or relating to the roofs of colliery or other workings - Google Patents
Improvements in or relating to the roofs of colliery or other workingsInfo
- Publication number
- GB554077A GB554077A GB16235/41A GB1623541A GB554077A GB 554077 A GB554077 A GB 554077A GB 16235/41 A GB16235/41 A GB 16235/41A GB 1623541 A GB1623541 A GB 1623541A GB 554077 A GB554077 A GB 554077A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roof
- bolts
- strata
- support
- disposed
- 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
- 230000003245 working effect Effects 0.000 title 1
- 238000009412 basement excavation Methods 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/006—Lining anchored in the rock
Abstract
554,077. Mine-roof supports. BEIJL, Z. S. Dec. 16, 1941, No. 16235. [Class 20 (ii)] To prevent the lateral movement of the strata which normally occurs in the roof of a mine, the strata are secured together by bolts which by their tension prevent collapse of the roof and consequent lateral strain relief ; the bolts may carry a system of horizontal cross-members beneath the roof. The strata of the roof are bored and bolts 1 are driven through the strata, each bolt being provided with self-gripping means at its inner end. Each bolt may also support corrugated washers 2 and hangers 4 on the ends 9 of which may be carried the ends of corrugated bars 5 which support further transverse corrugated bars 6, the whole being tightened against the roof by a nut 8 and washer 3. A sufficient number of bolts 1 are disposed in the passages to efficiently support the beams 5, 6 for the roof, and further short supports 10, Fig. 5, are disposed on each side to engage ledges on the upper portions of the wall face 11. In working on a face 12, rows of bolts are disposed in the roof at A, B, C, D, a cut 18 is made at the base of the wall and the wall face is then removed, after which a fresh set of bolts E is positioned nearer to the new wall face and the conveyer 14 is repositioned for further work. The roads are retained by packs 13 which are built to support the roof after excavation.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16235/41A GB554077A (en) | 1941-12-16 | 1941-12-16 | Improvements in or relating to the roofs of colliery or other workings |
| US471280A US2398130A (en) | 1941-12-16 | 1943-01-04 | Roof of colliery or other workings |
| BE463527A BE463527A (en) | 1941-12-16 | 1944-11-20 | Improvement of or relating to the roof in coal mines or other underground works |
| FR944001D FR944001A (en) | 1941-12-16 | 1947-03-27 | Process for ensuring the safety of the roof of an underground operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16235/41A GB554077A (en) | 1941-12-16 | 1941-12-16 | Improvements in or relating to the roofs of colliery or other workings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB554077A true GB554077A (en) | 1943-06-18 |
Family
ID=40150636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16235/41A Expired GB554077A (en) | 1941-12-16 | 1941-12-16 | Improvements in or relating to the roofs of colliery or other workings |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2398130A (en) |
| BE (1) | BE463527A (en) |
| FR (1) | FR944001A (en) |
| GB (1) | GB554077A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1025365B (en) * | 1952-04-10 | 1958-03-06 | Bochumer Eisen Heintzmann | Anchor support |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2442113A (en) * | 1945-05-25 | 1948-05-25 | Beijl Zako Sytse | Tunnelling and like subterranean operations |
| US2771746A (en) * | 1952-05-05 | 1956-11-27 | Fischer August | Anchor structure for mines, tunnels and the like |
| US2748594A (en) * | 1952-11-04 | 1956-06-05 | Lukens Steel Co | Roof bolt |
| US2729065A (en) * | 1953-06-26 | 1956-01-03 | Jack R Kennedy | Adjustable prefabricated metal overcast |
| DE924624C (en) * | 1953-08-12 | 1955-03-07 | Consolidation Bergbau Ag | Borehole anchor designed as a tie rod for pit lining |
| DE1008233B (en) * | 1954-09-09 | 1957-05-16 | Bergbaustahl G M B H | Anchor support |
| DE1115206B (en) * | 1956-02-27 | 1961-10-19 | Bergbaustahl G M B H | Anchor support |
| US3163012A (en) * | 1961-01-18 | 1964-12-29 | Joseph B Dempscy | Mine roof bolt installation |
| US3427811A (en) * | 1967-03-22 | 1969-02-18 | Claude C White | Mine roof support system |
| US4091628A (en) * | 1976-09-27 | 1978-05-30 | Jay Hilary Kelley | Prestressed elastic arched mine roof support |
| CA1201896A (en) * | 1982-11-16 | 1986-03-18 | Michael C. Tucker | Method and apparatus for reinforcing and consolidating earth structures |
| US5222837A (en) * | 1991-12-19 | 1993-06-29 | Phillips Connie L | Mine roof channel clamp |
| US5385433A (en) * | 1993-05-14 | 1995-01-31 | Jennmar Corporation | Bearing plate |
| US5292209A (en) * | 1993-05-14 | 1994-03-08 | Jennmar Corporation | Bearing plate |
| CN110486069B (en) * | 2019-09-10 | 2020-11-03 | 华北科技学院 | Large-mining-height coal wall caving control structure based on flexible reinforcement and construction equipment |
-
1941
- 1941-12-16 GB GB16235/41A patent/GB554077A/en not_active Expired
-
1943
- 1943-01-04 US US471280A patent/US2398130A/en not_active Expired - Lifetime
-
1944
- 1944-11-20 BE BE463527A patent/BE463527A/en unknown
-
1947
- 1947-03-27 FR FR944001D patent/FR944001A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1025365B (en) * | 1952-04-10 | 1958-03-06 | Bochumer Eisen Heintzmann | Anchor support |
Also Published As
| Publication number | Publication date |
|---|---|
| FR944001A (en) | 1949-03-24 |
| US2398130A (en) | 1946-04-09 |
| BE463527A (en) | 1946-06-29 |
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