METHOD FOR ERECTION OF UNDERGROUND STRUCTURES Russian patent published in 1997 - IPC

FIELD: construction engineering. SUBSTANCE: this relates to technology of erecting walls in subsurface ground at building of relieving and load-bearing walls for underground premises. According to method, bore-holes are drilled for cast-in-place columns at distance between them less than diameter of column with subsequent concreting them. Odd columns are made of concrete, and even columns are additionally strengthened by reinforcement framework. Diameter of reinforcement framework is 10-15% less than diameter of even column. EFFECT: high efficiency. 2 dwg