γb, γ' = Buoyant unit weight or effective unit weight γs = Unit weight of solids γw = Unit weight of water (equal to 9810 N/m3) W = Total weight of soil Ws = Weight of solid particles Ww = Weight of water V = Volume of soil Vs = Volume of solid particles Vv = Volume ...
volume of the settlement trough in 3D at subsurface level Z an arbitrary depth below ground surface Z0 distance from the ground surface to the mid-height of the opening ρs grain density φc critical state friction angle φ* scale factor of φc γ unit weight △σzz change in the vertical...
Field moisture capacity or field moist soil: The moisture content of a soil, expressed as a percentage of the oven dry weight, after the gravitational, or free, water has drained away; the field moisture content 2 or 3 days after a soaking rain; also called normal field capacity, normal ...
Bulk densityMass/volume of clods with wax to measure their submerged weight (Dane, 2002) Field capacity and wilting pointRawls and Brakensiek (1989) Percentage of organic matterWakley-Black (Nelson and Sommers, 1982) Coarse elements (%)Field observations (Duarte, 2006) ...
Dry weight of the crop was determined, and five plants were repeatedly sampled in each plot and dry weight was determined using a drying method at 105 °C for 1 h and drying again at 70 ° C for 72 h. Yield Three samples were randomly selected from 9 m2 of each plot to...
1 part of soil by weight (w) to 5 parts of water by volume (v). The EC was measured using a Total Dissolved Solids (TDS) meter, and the EC values are obtained by multiplying the TDS reading by a factor of 2. The EC values will be measured over a period of a few days until ...
On the Correlation between the Total Weight and the Actual Volume of Soil (Part 6) M Kawajiri,S Misono - 《Japanese Journal of Soil Science & Plant Nutrition》 被引量: 0发表: 1962年 Influence of cross-correlation between soil parameters on probability of failure of simple cohesive and c-...
翻译?
providing a large portion of the soil volume, as, for example, in salt marshes orpeatlands. In fact, the soil organic matter in marshes can reach 30%–40% by weight of the soil (Roner et al., 2016), whereas in peatlands this value is easily greater than 90% (Hergoualc’h and...
so Ei and Pi act at the same location on the slice, Hi is the vertical distance from the action point of Ei to the bottom edge of the slice, Wi is the self-weight of the strip, Ni is the foundation reaction force on the slip surface, and Ni is the effective weight of the soil ...