We perform analytical and numerical studies of aftershock sequences following abrupt steps of strain in a rheologically layered model of the lithosphere. The model consists of a weak sedimentary layer, over a seismogenic zone governed by a viscoelastic damage rheology, underlain by a viscoelastic upper mantle. The damage rheology accounts for fundamental irreversible aspects of brittle rock def...

To explore solutions for reinforcement problems of broken rock masses in deep roadways, it is necessary to study the performance cement-based grout and its effect. In this study, grouting-reinforced specimens with different particle sizes coal were made, which revealed effect grouting on bearing capacity mechanism secondary damage instability reinforced specimens. First, was determined that app...