Reinforcement by cement grouting method of the strip foundations in the shopping center of Chelyabinsk

In this paper the reasons for structural deformations in the operation of the existing building as a result of technological errors at the construction of adjacent underground parking are clarified. Physical and mechanical characteristics of the amended soil to convert its structural properties are analyzed. We determine the possible methods of strengthening to ensure safe operation of the building. Necessary technological and design parameters of injection are calculated. We have designed the project of strengthening brick walls, foundations and soils of the basement in the zone of maximum development of cracks in the load-bearing structures of this object. Cement grouting of the building basement has been made under direct control by the authors of the project and this article as well. Geotechnical monitoring is performed during the works and within the subsequent year of the building maintenance. As a result of the performed works the stabilization of the settlements of the soil basement and displacements of the foundation structures has been achieved.