METHOD FOR CONSTRUCTING UNDERGROUND PART OF BUILDING OR STRUCTURE UNDER AN EXISTING FOUNDATION Russian patent published in 1995 - IPC

FIELD: civil engineering; foundations. SUBSTANCE: method involves making horizontal drifts under an existing foundation and concreting the bearing walls of the underground part. The bearing walls transfer loads from the existing foundation to the ground becoming a new foundation of a building or structure. The next step involves performing ground works between the bearing walls to form the space of the underground part. EFFECT: accelerated construction of foundations under an already existing one. 2 cl, 4dwg