E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
E21D15/14—Telescopic props
E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted
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
E04G25/00—Shores or struts; Chocks
E04G25/04—Shores or struts; Chocks telescopic
E04G25/08—Shores or struts; Chocks telescopic with parts held relatively to each other by friction or gripping
Landscapes
Engineering & Computer Science
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Mechanical Engineering
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Structural Engineering
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Mining & Mineral Resources
(AREA)
Architecture
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Life Sciences & Earth Sciences
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General Life Sciences & Earth Sciences
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Geochemistry & Mineralogy
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Geology
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Civil Engineering
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Forms Removed On Construction Sites Or Auxiliary Members Thereof
(AREA)
Grue autotractee equipee de supports deployables de stabilisation et de jambes de force mobiles verticalement associees a ces derniers, et support deployable ainsi realise
Dispositif pour maintenir un coffrage d'about entre deux banches de coffrage parallèles pour la coulée d'un voile en béton et coffrage ainsi équipé.