A comparative study of ecological and biological parameters soils the Rostov-on-Don Zoo was carried out in 2017-2020. Monitoring sites were studied areas various purpose: aviaries with different animals, recreation area, park area. The control plot a relatively undisturbed section territory zoo. Different revealed heterogeneity conditions soil properties. most significant difference physical pr...

Dynamic measurements of very small strain stiffness (c 0.001% and less) were carried out both in the laboratory, using piezoceramic bender elements of the type developed at the Norwegian Ceotechnical Institute and at the University College of North Wales, and in situ, using surface wave techniques. For the purpose of the research described in this dissertation, the piezoceramic bender elements ...

In this paper, a multi-surface anisotropic constitutive model is proposed for clayey soils, based on bounding surface theory and classical critical state-based model. the model, in addition to volumetric hardening law, rotational rule also incorporated into formulation with non-associated flow rule. The uses plasticity produce more realistic representation of nonlinear behavior clays high overc...

The mechanical integrity of caprocks overlying injection formations is one the key factors for safe storage carbon dioxide in geological formations. Undrained effects caused by CO2 on strength and elastic parameters should be properly considered operational design to avoid fracture creation, fault reactivation unwanted surface uplift. This study presents results from eleven undrained triaxial c...

Purpose: to reveal the features of changes in reclamative state and soil fertility lands southern Russia by regular irrigation post-reclamation period. Discussion. The reasons for raising water table (GWL) are considered: location systems floodplains rivers or on terraces I II, design large plots with an area about 1000 hectares systems, construction canals network earthen channel etc. main fac...

Advanced sampling and testing techniques are applied to assess the mechanical behaviour of a stiff, silt-and-clay dominate, stony, low plasticity UK till whose genesis post-depositional history imparted complex profiles yielding pressures shear strengths that differ considerably from those K 0 consolidated waterborne sediments. It is shown reaches limits its elastic undergoes Y 1 at very small ...

Laboratory and field tests have shown that accelerated compression of peat soils occurs in response to moderate heating and an effective overconsolidation is produced on subsequent cooling. This phenomenon has been termed thermal precompression. In this study, long-term laboratory and field tests were conducted to investigate secondary compression behavior of peat as a function of stress and te...