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Showing 1 to 13 of 13 for “"Soil Reaction"”.
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A study of the effects of different rates of liming on soil reaction and growth of certain crop plants
… have become more acid. (3) The pH values of the soil paralleled the quantity of lime applied. Where no lime was applied the soil was found to be very acid, but increasing applications of lime brought the reaction gradually to the neutral point. (4) There appears to be a definite relation between …
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Análise de esforços em estruturas aporticadas com fundações em estacas
… of piles are presented for two hypothesis of the soil reaction modulus: constant or varying linearly with depth.
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The effect of calcium carbonate of certain soil constituents and on plant growth
… the use of calcium bicarbonate (lime) as soil augmentation. It covers the physical, physiological, bacteriological, and chemical effects of lime in soils, and also the historical use of lime and its sources. From page 9 "Scope of Problem": It is the purpose of this investigation to secure …
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The effect of vibratory loading on vertical model piles in clay
… The effects of pile length, time after driving, soil consistency, dynamic force amplitude, and free water surrounding the pile were investigated. The effect of confining walls on such tests received special attention. Tests were also performed on two model pile groups. The possibility of …
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Análise numérica de cravação de estacas torpedo modeladas por integral de pressões
… are usually submitted to high loads in a soil that is, usually, extremely soft. To circumvent this problem, torpedo anchor is frequently used to fix the mooring line on seabed. In this context, this paper presents a new numerical approach to represent the soil reaction of torpedo anchor, …
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Experimental and numerical investigations to assess the behaviour of a buried pipeline in areas with high geological instability
… such as landslides, fault movements, soil liquefaction which may be caused by seismic activity are one of the most dangerous phenomena that can involve buried pipelines, e.g. for oil and gas transportation, or water and sewage. This aspect is currently an important part of research and …
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Effects of certain fertilizer and manurial treatments on the cation exchange properties and organic matter content of dunmore silt loam
… content, and cation exchange properties of the soil of the 26-year-old rotation and continuously cropped plots at Blacksburg, Virginia was carried out. Individual soil samples were taken of the eight sub-plots which represent each plot. After the chemical work had been completed, the data …
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Effects of certain fertilizer and lime treatments on some chemical properties of Cecil sandy loam
… nitrogen, and cation exchange properties of the soil of the l8-year-old rotation plots at Chatham, Virginia, was carried out. Individual soil samples were taken of each of the 36 sub-plots which compose the experiment. After the chemical analyses were completed, the data obtained was analyzed …
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Modeling Dynamic Ground Reaction to Predict Motion of and Loads on Stranded Ships in Waves
… in waves. In this thesis, a model of the ground reaction forces due to the steady state motions of a grounded ship is developed. This model is derived from civil engineering applications but tailored to the stranded ship problem. The ground reaction sub-model is part of a ship motion model that …
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Effect of summer and winter rotations on selected soil properties and productivity of succeeding winter chickpea (Cicer arietinum L.)
… chemical and biological properties of the soil consequently increasing the yields in the long run. Therefore, this study assessed the residual effect of summer and winter crop rotations on selected soil chemical properties and soil biological health indicators, and productivity of the …
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Using Portable X-ray Fluorescence to Predict Physical and Chemical Properties of California Soils
<p>Soil characterization provides the basic information necessary for understanding the physical, chemical, and biological properties of soils. Knowledge about soils can in turn be used to inform management practices, optimize agricultural operations, and ensure the continuation of ecosystem …