FIELD: construction.
SUBSTANCE: invention relates to the field of quality control of construction works during erection of buildings and can be used to determine the state of contact of a foundation slab of a building under construction with a soil base. Disclosed is a method of assessing the state of contact of a foundation plate of a building under construction with a soil base, in which in points of a dense observation grid, resonant frequencies of longitudinal vertical oscillations of the foundation plate, excited by a vertical pulse load, according to them, zones of incomplete contact of foundation plate with soil base are determined with allowance for thickness of plate, modulus of elasticity and Poisson coefficient of plate material, propagation speed of longitudinal waves, coefficient of soil reaction.
EFFECT: high reliability of determining location of zones of incomplete contact of foundation plate with soil base.
1 cl, 5 dwg
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