METHOD AND DEVICE FOR RECONSTRUCTIBLE BUILDING FOUNDATION REINFORCEMENT Russian patent published in 2004 - IPC

FIELD: construction, particularly restoration of architecture masterpieces built on frost-heaving soil. SUBSTANCE: method for deforming prevention of buildings having pile foundation of fully or partly decayed wood involves excavation by-pass wells; building reinforcing members under foundation base such that reinforcing members span the whole foundation base length; feeding hardening material into hollow reinforcing members and to soil surrounding reinforcing members. By-pass wells are L-shaped and formed on foundation opposite corners. Reinforcing members building is carried out simultaneously with advancement stabilizing thereof and with seasonal soil heating. Device for foundation reinforcing includes crushing means, hollow reinforcing means and injector. Hollow reinforcing means have conical ends with orthogonal advancement stabilizing means. Injector is located on end cone coaxially to reinforcing member and is connected with hardening material feeding pipe branch. Channels for heating wire are formed in reinforcing member inner surfaces. Heating wire is attached to electric system and automatic heat regulator. EFFECT: increased efficiency, reduced costs, prevention of soil frost-heaving. 2 cl, 4 dwg, 1 ex