نتایج جستجو برای: matric suction
تعداد نتایج: 9477 فیلتر نتایج به سال:
The permeability function is one of the key properties in unsaturated soil mechanics and variation parameters water characteristic curve can easily affect matric suction as well infiltration. purpose this research to explore significant effect SWCC on rainfall A gas two phase flow analysis method was conducted investigate influence stable infiltration intensity. Result showed that when saturati...
Loss of matric suction during rain has an important effect on the instability expansive soil slope. A new device was designed for testing force in order to propose and determine equivalent corresponding suction. First, internal relation between unsaturated analyzed. Then, numerical algorithm implementation discussed, introduced into strength reduction finite element method (FEM). Finally, effec...
Field infiltration tests were conducted at a hillside near the ship lock of the Three Gorges Dam in Hubei Province, China. The test site consists of residual soil and decomposed granite. The infiltration rate is estimated from the in situ tests to be 1.465–2.778×10−6 m s−1, depending on the initial water content. The rate at which the infiltration front moves down through the soil matrix within...
To better understand and analyze the unsaturated stability of loess filling body, it is necessary to study changes in suction stress before after drying-wetting cycles. In this study, SWCC compacted cycles was tested using filter paper method. Then, calculated microstructure sample determined by SEM NMR. The results showed that had an important influence on SSCC loess. change can be well explai...
Baked ceramic aggregates (fritted clay, arcillite) have been used for plant research both on the ground and in microgravity. Optimal control of water and air within the root zone in any gravity environment depends on physical and hydraulic properties of the aggregate, which were evaluated for 0.25-1-mm and 1-2-mm particle size distributions. The maximum bulk densities obtained by any packing te...
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