PROBLEM TO BE SOLVED: To provide a soil density test method whose work is simpler than that of a conventional method. SOLUTION: A part of the soil to be tested is dug to form a hole and the soil is taken out. Measure the mass of the removed soil. When measuring the volume of a ...
BS EN 725-8-1997 Advanced technical ceramics Methods of test for ceramic powders Part 8. Determination of tapped bulk density a method for introducing young people to the social art of architecture Changes in density, biomass, seed production and soil seed banks of the Field Test of a Method...
1、Designation: D7263 09 (Reapproved 2018)1Standard Test Methods forLaboratory Determination of Density (Unit Weight) of SoilSpecimens1This standard is issued under the fixed designation D7263; the number immediately following the designation indicates the year oforiginal adoption or, in the case of...
Fig. 1(e) shows an improved test device based on the transient method. Combining the extended Darcy's law and the ideal air state equation, the calculation formula of the transient air permeability model can be derived (Li et al., 2004). Noticeably, since the air density depends on the ...
Comparison of nuclear magnetic resonance methods for the analysis of organic matter composition from soil density and particle fractions Environmental Chemistry, 9 (2012), p. 97 View in ScopusGoogle Scholar Congreves et al., 2015 K.A. Congreves, A. Hayes, E.A. Verhallen, L.L. Van Eerd ...
Standard Test Method for Density of Soil and Rock In-Place at Depths Below the Surface by Nuclear Methods 来自 掌桥科研 喜欢 0 阅读量: 4 标准号: ASTM D5195-02 摘要: 1.1本试验方法包括通过伽马辐射衰减计算土壤和岩石密度,其中伽马源和伽马探测器放置在由接入管内衬的钻孔中的所需深度. 1.2通过...
The laboratory methods for measuring the shear wave velocity of soil samples include the resonant column test, bender element test among others. However, there is no established standard developed for the interpretation of the dynamic test results1. The bender element method was developed in the 198...
Meigh AC, Skipp BO (1960) Gamma-ray and neutron methods of measuring soil density and moisture. Geotechnique 10(3):110–126 ArticleGoogle Scholar Merela M, Oven P, Sers I, Mikac U (2009) A single point NMR method for an instantaneous determination of the moisture content of wood. Holzf...
Comparison of five methods for characterizing soybean rooting density and development1. Agron J. 1977;69(3):415. https://doi.org/10.2134/agronj1977.00021962006900030021x. Article Google Scholar Lobet G, Draye X, Périlleux C. An online database for plant image analysis software tools. Plant ...
For example, where loose sands or man-made fill are encountered, deep densification methods can be used to increase the density of the material to a degree that allows for construction of shallow foundations or, in the case of loose sands, mitigates potential for liquefaction during a seismic ...