Laboratory and theoretical evaluation of impact of packing density, particle shape, and uniformity coefficient on erodibility of coarse‐grained soil particles

2020 ◽  
Vol 45 (7) ◽  
pp. 1499-1509 ◽  
Author(s):  
Hyunwook Choo ◽  
Qian Zhao ◽  
Susan E. Burns ◽  
Terry W. Sturm ◽  
Seung Ho Hong
Keyword(s):  
Packing Density ◽  
Particle Shape ◽  
Coarse Grained ◽  
Theoretical Evaluation ◽  
Soil Particles ◽  
Uniformity Coefficient ◽  
Coarse Grained Soil

scholarly journals ELUTION CONTROL OF Cr（Ⅵ）FROM VOLCANIC COARSE-GRAINED SOIL IMPROVED WITH CEMENT

2017 ◽  
Vol 71 (1) ◽  
pp. 661-666 ◽  
Author(s):  
Munehisa YOSHIDA ◽  
Toshiya KITAMURA ◽  
Hideyuki KATSUSHIMA ◽  
Keisuke KONDO
Keyword(s):  
Coarse Grained ◽  
Coarse Grained Soil

The Construction Technology of Light Masonry Retaining Structure Used in Fluctuating Belt of the Three Gorges Reservoir Area

2011 ◽  
Vol 255-260 ◽  
pp. 602-606
Author(s):  
Long Fei Cheng ◽  
Lin Yan Li
Keyword(s):  
Precast Concrete ◽  
Retaining Wall ◽  
Coarse Grained ◽  
Three Gorges Reservoir Area ◽  
Construction Technology ◽  
Reservoir Area ◽  
Retaining Structure ◽  
Concrete Blocks ◽  
Coarse Grained Soil

Masonry retaining structure consists of precast concrete blocks, which has good looks and is in harmony with environment. Blocks with proper shape can be used in fluctuating belt of the reservoir area. The construction of masonry structure should conform to the following steps: first, excavate the foundation ditch, lay a cushion and arrange the controlling points, insuring the quality of the first layer of blocks; it would be better to choose inorganic coarse-grained soil as filler and to set a water filtering layer with a height more than 30cm behind the retaining wall; carry on the construction of earth filling behind the wall after the blocks are fixed as requested, and then fix the geotechnical grille when the height of earth filling reaches the elevation of the grille; put Geotechnical Fabric between permeable aggregate and the earth filling behind it to keep the two materials from mixing.

Prediction of Packing Density of Milled Powder Based on Packing Simulation and Particle Shape Analysis

2007 ◽  
Vol 534-536 ◽  
pp. 1621-1624
Author(s):  
Yuto Amano ◽  
Takashi Itoh ◽  
Hoshiaki Terao ◽  
Naoyuki Kanetake
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Shape Analysis ◽  
Packing Density ◽  
Particle Shape ◽  
Milled Powder ◽  
Spherical Particles ◽  
Nonspherical Particles ◽  
Property Control

For precise property control of sintered products, it is important to know the powder characteristics, especially the packing density of the powder. In a previous work, we developed a packing simulation program that could make a packed bed of spherical particles having particle size distribution. In order to predict the packing density of the actual powder that consisted of nonspherical particles, we combined the packing simulation with a particle shape analysis. We investigated the influence of the particle size distribution of the powder on the packing density by executing the packing simulation based on particle size distributions of the actual milled chromium powders. In addition, the influence of the particle shape of the actual powder on the packing density was quantitatively analyzed. A prediction of the packing density of the milled powder was attempted with an analytical expression between the particle shape of the powder and the packing simulation. The predicted packing densities were in good agreement with the actual data.

Water-vapor-heat behavior in a freezing unsaturated coarse-grained soil with a closed top

2018 ◽  
Vol 155 ◽  
pp. 120-126 ◽  
Author(s):  
Ruiqiang Bai ◽  
Yuanming Lai ◽  
Mingyi Zhang ◽  
Jianqiang Gao
Keyword(s):  
Water Vapor ◽  
Coarse Grained ◽  
Coarse Grained Soil
Sign in / Sign up

Export Citation Format

Share Document