Engineering geology properties of the foundation soils of concrete structures at the Kanev hydroelectric development

Conclusions

• 1. The complexity of the engineering geology conditions of the area of the concrete structures of the Kanev hydro development, especially the foundation of the hydroelectric station, which is due to the variegated geologic structure and inhomogeneity of the indexes of the physical, mechanical and seepage properties of the soils, is explained by the peculiarities of the formation of the thick stratum of Quaternary deposits and complex character of development of this segment of the valley of the Dniepr River.

• 2. In connection with the aforementioned peculiarities of the geologic structure and the imperfection of the rock-drilling technique used in the investigations, a number of engineering-geology problems of the foundations (distribution of weak soils, natural density of the flooded sands, etc.) were solved conclusively only during the period of geologic documentation of the foundation pits.

• 3. The presence of weak soils in the stratum of the station foundation often necessitated the use of additional measures when preparing it (removal of weak soils, compaction of sands having an insufficient density, etc.).