نتایج جستجو برای: mixed clayey soils

تعداد نتایج: 268636  

2002
H. J. Mascagni

Corn acreage has increased in recent years in Louisiana. Much of this is on mixed to heavy Mississippi River alluvial soils and to a lesser extent on loessial silt loams of the Macon Ridge. Each of these soil groups are unique in their phys­ ical and chemical characteristics and different management strategies may be required to produce optimal yield. Research has indicated that corn performs b...

Clayey soils are the most common material used for water sealing and undertake an important role in controlling landfill-related pollution. Organic liquids can adversely affect the effectiveness of clay liners by drastically increasing their hydraulic conductivity. The aim of this study is to investigate and compare the permeability in two types of clay with different plasticity, exposed to the...

Journal: :Water 2022

An experimental study was carried out to investigate seabed-pipeline interactions with regard soil liquefaction. For a high proportion (30 60%) of fine sediment, four groups tests were configured reproduce liquefaction around pipelines for different initial pipe depths, densities and wave conditions (wave height period). The focused on verifying the theoretically computed areas failure by analy...

اوحدی, وحید رضا, شفیعی, هما ,

The soil properties are function of mineral type, characteristics of pore fluid, microstructure of soil, and environmental conditions. Scanning electron microscope (SEM) can be used as a tool for a direct study of soil microstructure. In addition, one of the methods for evaluation of heavy metal contaminated clayey soils is related to the application of SEM. In this paper, a method for hom...

Journal: :Sustainability 2022

Clayey soils are spread over large areas of the world. This soil type has numerous problems due to its low strength, high compressibility, and level volumetric changes. To overcome these difficulties, many researchers have concentrated their studies on improvement techniques. Recently, reinforcement been considered an effective reliable technique for improving strength stability by using differ...

2002
F. Lamas C. Irigaray J. Chacón

Fine-grained, more or less cohesive carbonate materials are extremely widespread in terms of surface area and are, therefore, commonly used as materials to construct impermeable cores for dams. However, it has not been adequately documented whether the carbonate content in fine-grained soils significantly affects their engineering behaviour. The present study shows that the carbonate content su...

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