Three-Dimensional Stress State of Earth Dams Under Static Loads

The article is devoted to the study of the stress–strain state and strength of various earth dams under the action of static loads. The stress–strain state of the Gissarak, Sokh and Pachkamar earth dams built in Central Asia is studied in a three-dimensional formulation under the action of body forces and hydrostatic water pressure. It was established that under the action of body forces and hydrostatic water pressure, the plane deformed state for some dams is realized in a very narrow range along the length of the dam, and for other dams, this state is realized in a wide range. The equivalent stress for the three-dimensional stress state of the dams under consideration was estimated using the fourth maximum-strain-energy theory, and the results obtained were compared with the allowable stress for the soil material of the dams, which showed sufficient strength of these dams under the action of static loads.