This paper develops an approach to solving problems about the excitation of vibrations/vibrations by sources waves in linear-viscous-elastic media modeling compacted concrete/building mixtures with depth-variable mechanical characteristics. An analysis contact stresses and forces occurring under oscillating stamp, types generated medium on its surface, energy carried each type wave for differen...

With the continuous improvement of level construction industry in modern industry, at same time, requirements for crack resistance concrete dams are also higher and higher. In preparation stage experiment, corresponding experimental materials equipment provided. order to ensure that can meet workability strength grade, proportion is designed; During activity characteristics fly ash admixture ex...