One of the main European agricultural problems is the decline in soil fertility due to the reduction of the natural soil harmony. When natural soil composition is altered, few cultivated plants replace spontaneous populations of numerous species. Man becomes the only regulator of a new fragile equilibrium between the simplified biocenosis elements. Agronomic techniques (fertilisation, irrigatio...

The simultaneous effects of soil and existing structures are known as the site-city interaction (structure-soil-structure). The impact of site-city interaction on structure behavior is effective. Thus, this interaction in some regions decreases the responses while increases in other areas. In addition, the site-city interaction of many parameters including the soil type, density rate, height of...

– The DC current-voltage characteristics induced by a driving electric field with frequency Ω of a one-dimensional electron channel with a tunnel barrier is calculated. Electronelectron interaction of finite range is taken into account. For intermediate interaction strengths, the non-linear differential conductance shows cusp-like minima at bias voltages mh̄Ω/e (m integer) that are a consequence...

During the operation period of tunnels in urban deep aquifer zones, geological environment around tunnel is complex and surrounding strata are rich groundwater, which often poses a risk structure cracking groundwater leakage, seriously threatening tunnel’s safety. To reduce cracking, theoretical calculation model three-dimensional concrete–soil interaction thermo-mechanical coupling numerical c...

Based on an actual corrugated steel plate arch bridge, considering soil-structure interaction, by using the finite element program of ANSYS, a 2-D finite element model was set up to analyze the soil pressure and structural deformation under different load conditions in detail. Since this type of structure relies on the soil-structure interaction to share the load, as the structural parameters h...

Large-diameter open caissons are a widely used construction solution for deep foundations, underground storage and attenuation tanks, pumping stations, launch reception shafts tunnel boring machines. The sinking phase presents number of challenges during construction, including maintaining caisson verticality, controlling the rate minimising soil resistance through use lubricating fluids. This ...

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