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The main reasons for the appearance of underground and atmospheric water in the basements of the school building, which has been in operation for more than two years since its commissioning, are considered. The building is three-story, brick, with a basement and attic roof. The building foundation is made in the form of two monolithic reinforced concrete slabs arranged at different elevations (in height) and separated by a deformation joint. Geodetic survey data indicate that the site of the building is located in the lowest part of the courtyard. The engineering and geological structure and hydrogeological features of the construction site, as well as the state of the relief and structural solutions of the yard structures are analyzed. The results of the survey of building structures, observations of the position of the ground water level at the base of the building and atmospheric waters on the courtyard territory are given. Based on the results of the survey, assessment of the ground conditions of construction, observations of the hydrogeological regime, the main reasons for the appearance of underground and atmospheric water in the basement of the operated building were established in the base.

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