نتایج جستجو برای: soil column
تعداد نتایج: 253151 فیلتر نتایج به سال:
Soil behavior during stress wave propagation was studied on a sand and two clays by making one-dimensional wave propagation tests on 5-meter long columns of the soils. Attempts were made to predict this behavior by determining soil properties in dynamic compression tests on small samples and by using these properties in a variety of mathematical models for soil. In all the wave propagation test...
Various materials have been utilized for ground improvement techniques based on geoenvironmental compatibility. The application of lime mortar in soil has been catching the attention of researchers and engineers. However, there is a lack of research on the variation of moisture content in soil affecting the mechanical behavior of lime mortar. In this study, large-scale laboratory tests were con...
This paper investigates the optimized parameters for the tuned liquid column dampers to decrease the earthquake vibrations of high-rise buildings. Considering soil effects, the soilstructure interaction (SSI) is involved in this model. The Tuned Liquid Column Damper (TLCD) is also utilized on the roof of the building. Since the TLCD is a nonlinear device, the time domain analysis based on nonli...
Stone column replacement of soft soil foundation construction method is more and used in water conservancy projects. On the one hand, stone has high permeability, which enhances dissipation capacity excess pore pressure; on other it a stiffness, reduces additional stress soil, therefore pressure. These two mechanisms work together to improve bearing soil. In previous plane strain transformation...
Our goal was to determine dioxin levels in 800 soil samples collected from Taiwan. An in vitro DR-CALUX® assay was carried out with the help of an automated Soxhlet system and fast cleanup column. The mean dioxin level of 800 soil samples was 36.0 pg-bioanalytical equivalents (BEQs)/g dry weight (d.w.). Soil dioxin-BEQs were higher in northern Taiwan (61.8 pg-BEQ/g d.w.) than in central, southe...
In soft soil foundations, geogrid encased stone column composite foundation technology has been widely applied and developed in recent years due to its efficient treatment. this study, eight groups of laboratory model tests were performed a large-scale testing tank investigate the bearing mechanism stress characteristics columns under traffic loads with different cyclic load ratios. The at bott...
Macrospore created by decaying plant root provides pathways for rapid transport of pollutants in soil profile. The main objective of this study was quantitative analysis of the effect of plant root (Zea mays L.) on bacterial and chloride transport through soil. Experiments were conducted in 9 soil columns packed uniformly with loamy sand. The treatments were bare soil, bare soil with corn (Zea ...
The observation of failure surfaces within column supported embankments is critical to understanding how the embankment stresses are transferred towards heads. In this study, finite element simulations utilising a strain softening constitutive model, non-local regularisation and Arbitrary Lagrangian-Eulerian formulation used examine these over various geometries. This methodology offers insight...
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