FR1183924A -
Improvements made to the rigid connection devices between the segments, placed end to end, of curved or annular support frames, more especially for galleries or mine corridors
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Improvements made to the rigid connection devices between the segments, placed end to end, of curved or annular support frames, more especially for galleries or mine corridors
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BOCHUMER GES fur GRUBENAUSBAU
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BOCHUMER GES fur GRUBENAUSBAU
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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
E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
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FR1183924D1956-10-181957-10-04
Improvements made to the rigid connection devices between the segments, placed end to end, of curved or annular support frames, more especially for galleries or mine corridors
ExpiredFR1183924A
(en)
Improvements made to the rigid connection devices between the segments, placed end to end, of curved or annular support frames, more especially for galleries or mine corridors
Improvements made to the rigid connection devices between the segments, placed end to end, of curved or annular support frames, more especially for galleries or mine corridors
Improvements to rigid connection devices between segments, placed end to end, of curved or annular support frames, more especially for galleries or mine corridors
Improvements to the rigid connection devices established between the segments, placed end to end, of curved or annular support frames, more especially for galleries, corridors or mine shafts
Improvements to jointing devices with fish plates for segments connected end to end in arched or circular supporting frames, in particular for mine galleries
Improvements made to collars for the clamping connection of profiles in the form of a deep gutter, more specifically for supporting frames of galleries or mine corridors