FIELD: construction. SUBSTANCE: group of semitunnels is installed in operating position, then grip is formed and removed from semitunnels are forms by lowering of working surface of horizontal deck of one of extreme semitunnels below load-bearing structures of deck of adjacent semitunnels and their removal through aperture in building wall. Prior to removal, extreme semitunnels are successively turned in base plane. EFFECT: higher efficiency. 3 cl
Authors
Dates
1995-04-30—Published
1992-12-01—Filed