Dynamic behavior of earth dams under short-term semi-harmonic loads

Abstract

The article is devoted to the dynamic problems of studying the strain state of earth dams under dynamic impacts. A method is developed for solving wave problems to determine the stress-strain state of earth structures, in particular, earth dams. Based on the use of the finite difference method, an algorithm for solving problems and calculation formulas were developed that have second-order accuracy in time and coordinates. The advantage of the developed method is the implementation of complex nonlinear deformation models, taking into account structural changes and moisture content of soil. In the example of the Charvak dam, the distribution of the stress state over the cross-section of the dam under the action of its own weight is determined and the problem of the dynamic behavior of an earth dam under the influence of short-term harmonic loads is numerically solved. The change in intense stresses at some points of the earth dam over time is determined.