GB836419A - Improvements in lagging members for underground gallery-support systems - Google Patents
Improvements in lagging members for underground gallery-support systemsInfo
- Publication number
- GB836419A GB836419A GB20618/56A GB2061856A GB836419A GB 836419 A GB836419 A GB 836419A GB 20618/56 A GB20618/56 A GB 20618/56A GB 2061856 A GB2061856 A GB 2061856A GB 836419 A GB836419 A GB 836419A
- Authority
- GB
- United Kingdom
- Prior art keywords
- members
- lagging
- bent
- support systems
- arch
- 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
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
- Tents Or Canopies (AREA)
- Greenhouses (AREA)
Abstract
836,419. Mine lagging. BOCHUMER G.m.b.H. FUR GRUBENAUSBAU-UND TECHNIK. July 3, 1956 [July 4, 1955; Aug. 29, 1955; Dec. 28, 1955], No. 20618/56. Class 20(2) Mine arches 1 are connected by lagging members comprising two or more members 2 connected by a transverse member 7 and bent at both ends to engage both sides of each arch by parts 4a. The free ends 4c may be bent round the arch in situ. The members 2 are inclined apart towards the free ends to allow the closed end of an adjacent lagging member to fit between them. The members 2 are joined by bracing 8. 'In further modifications the ends are bent to embrace the open sides of U-section arches in one of them Figs. 5-7 (not shown) parallel rods are joined intermediately by transverse and diagonal members
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE836419X | 1955-07-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB836419A true GB836419A (en) | 1960-06-01 |
Family
ID=6761167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20618/56A Expired GB836419A (en) | 1955-07-04 | 1956-07-03 | Improvements in lagging members for underground gallery-support systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB836419A (en) |
-
1956
- 1956-07-03 GB GB20618/56A patent/GB836419A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DK111650B (en) | Flexible, reinforced hose. | |
GB836419A (en) | Improvements in lagging members for underground gallery-support systems | |
GB795053A (en) | Connecting device for lagging irons for mines | |
ES276297A1 (en) | Improvements in flexible dust protection hoses (Machine-translation by Google Translate, not legally binding) | |
GB894757A (en) | Coupling device for threaded rods | |
GB714992A (en) | Improvements relating to walling for mines | |
Kantor | Ur Excavations, Vol. X: Seal Cylinders | |
GB846441A (en) | Improvements relating to the connection of elongated members | |
GB836036A (en) | Band type clamps | |
GB898717A (en) | Improvements in and relating to walling or roof support structures for mine roadways | |
GB843286A (en) | Improvements in angle strips for framework structures | |
GB838190A (en) | Improvements in or relating to struts for mine arches | |
GB763111A (en) | Improvements relating to constructional elements | |
GB528493A (en) | Improvements in and relating to chock releases for supporting mine roofs and the like | |
GB907055A (en) | Improvements in or relating to mine roof supports | |
IE21253L (en) | Reinforced concrete constructions. | |
GB790466A (en) | Improvements in shuttering | |
GB839678A (en) | Improvements in or relating to struts for mine arches | |
ES86051U (en) | PendolÂșn for cement armors (Machine-translation by Google Translate, not legally binding) | |
AT198931B (en) | Turnbuckle for concrete formwork, scaffolding or the like. | |
AT196247B (en) | Closure for connecting straps or the like. | |
GB993166A (en) | Improvements in or relating to reinforced concrete constructional units | |
ES40731Y (en) | Reinforced crossbow for girdles, corsets and the like | |
AT219833B (en) | Transport device for mortar, sand, etc. like | |
ES261909A2 (en) | Improvements in the construction of metallic carpentry (Machine-translation by Google Translate, not legally binding) |