Rapid loading of sands is a common issue in geotechnical engineering problems such as projectile or free-fall impact. At high strain rates (HSR), soils show more strength and enhanced dilation (viscoplastic behaviour) compared to the response at low (inviscid behaviour). However, few constitutive models account for viscoplasticity sands. Hence, development viscoplastic highly desired. Usually, ...

The bearing capacity of closely spaced footings has become one the important topics in geotechnical engineering research owing to rapid development urban areas around world. In this paper, we propose three efficiency factors that can be used describe effects using Terzaghi’s traditional equation. With an advanced finite-element limit analysis upper and lower bounds, both strip multiple on cohes...