Soil settlement under the house foundation in the area of Tretyakov Gallery (26-28 Staromonetny per.) results in a considerable wall deformation in the arched section of the house
The house was declared to be a hazardous structure but after the long and expensive major overhaul the visible wall damages were eliminated.
A year later a network of small cracks reappeared on the walls around the arch and at the top part of the house pediment being the evidence of the continued deformation of the house foundation.
The decision on the measures for repair of the house was taken without underground space survey, i.e. there was no complete and reliable information about the real conditions under the building and the causes of violation of underlying rock and foundation strength properties. Measures for reinforcement of the foundation were not taken.
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