Results 231 to 240 of about 2,712,599 (309)
Some of the next articles are maybe not open access.
Phosphorus saturation in soils and groundwaters
Land Degradation & Development, 1993AbstractOn average, crops require about 30 kg ha−1 y−1 of P in humid regions. in some regions fertilizer and manure are applied in amounts that exceed this. the surplus of P in agricultural areas is about 20‐45 kg ha−1 y−1. This implies an accumulation of P.
H. Behrendt, A. Boekhold
openaire +1 more source
International journal for numerical and analytical methods in geomechanics (Print)
Due to the presence of tiny gaps at the interface of two layers of saturated soil, water seepage occurs at a slower rate within these gaps, resulting in laminar flow at the interface.
Jiahao Xie +5 more
semanticscholar +1 more source
Due to the presence of tiny gaps at the interface of two layers of saturated soil, water seepage occurs at a slower rate within these gaps, resulting in laminar flow at the interface.
Jiahao Xie +5 more
semanticscholar +1 more source
Dynamic response of a segmented tunnel in saturated soil using a 2.5-D FE-BE methodology
Soil Dynamics and Earthquake Engineering, 2019The majority of existing subway tunnel lines are constructed by the shield method, which is assembled by several segmental linings connected by joints.
Shunhua Zhou, Chao He, P. Guo, Fan Yu
semanticscholar +1 more source
FREEZING PROCESSES IN SATURATED SOILS
Mathematical Models and Methods in Applied Sciences, 1998When a soil saturated with water is subject to freezing, a volume expansion can generally be observed. The increase in volume is due not only to the different densities of water and ice, but mainly to a water migration process that is transported from the base of the soil up to an intermediate region where the change of phase occurs.
openaire +3 more sources
Vertical vibration of a single pile embedded in a frozen saturated soil layer
Soil Dynamics and Earthquake Engineering, 2019The theories of elasticity and a composite solid-phase saturated porous medium were employed to investigate vertical vibration of an end-bearing pile embedded in a frozen saturated soil layer from three-dimensional axisymmetric analysis.
Qiang Li +4 more
semanticscholar +1 more source
CATENA, 2021
Infiltrating water accumulates in the plough pan because of the low permeability of this layer, which results in saturation or partial saturation (soil water contents between the field water capacity and saturated water content) of the cultivated layer ...
Zhen Han +5 more
semanticscholar +1 more source
Infiltrating water accumulates in the plough pan because of the low permeability of this layer, which results in saturation or partial saturation (soil water contents between the field water capacity and saturated water content) of the cultivated layer ...
Zhen Han +5 more
semanticscholar +1 more source
GPR full-waveform inversion of a variably saturated soil-aquifer system
Journal of Applied Geophysics, 2019Characterizing the critical zone is highly important to improve the mapping of small-scale spatial heterogeneity of soil properties and the understanding of flow and transport processes. Thereby, crosshole GPR full-waveform inversion of experimental data
A. Klotzsche +2 more
semanticscholar +1 more source
Compressibility of Partly Saturated Soils
Journal of Geotechnical Engineering, 1985From the considerations of the truncated diffuse double layer due to partial saturation, an equilibrium equation is written in terms of the soil state parameter viz. void ratio, e, void ratio at liquid limit, e=wG, degree of saturation, S and external applied stress, p. The type of fine grained soil is subdued by its liquid limit.
Nagaraj, TS, Murthy, BRS
openaire +1 more source
Engineering analysis with boundary elements, 2018
In this paper, the polygon scaled boundary finite element method is extended to analyze saturated soil based on the generalized Biot's dynamic consolidation theory.
Degao Zou +3 more
semanticscholar +1 more source
In this paper, the polygon scaled boundary finite element method is extended to analyze saturated soil based on the generalized Biot's dynamic consolidation theory.
Degao Zou +3 more
semanticscholar +1 more source
, 2019
Near-saturated hydraulic properties are the key parameters for water transport models in the unsaturated zone and essential for management practices. This study was conducted to compare efficacy of multiple linear regression (MLR) and hybrid method of ...
Behnam Azadmard +4 more
semanticscholar +1 more source
Near-saturated hydraulic properties are the key parameters for water transport models in the unsaturated zone and essential for management practices. This study was conducted to compare efficacy of multiple linear regression (MLR) and hybrid method of ...
Behnam Azadmard +4 more
semanticscholar +1 more source