Research on Coarse-Grained Soil Collapsibility in Gobi Region

2012 ◽  
Vol 446-449 ◽  
pp. 1450-1453
Author(s):  
Zhi Hong Nie ◽  
Kun Li ◽  
Jian Xia
Keyword(s):  
Coarse Grained ◽  
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.

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

Mechanical and electrical properties of coarse-grained soil affected by cyclic freeze-thaw in high cold regions

2020 ◽  
Vol 27 (3) ◽  
pp. 853-866
Author(s):  
Yong-long Qu ◽  
Wan-kui Ni ◽  
Fu-jun Niu ◽  
Yan-hu Mu ◽  
Guo-liang Chen ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Coarse Grained ◽  
Cold Regions ◽  
Freeze Thaw ◽  
Mechanical And Electrical Properties ◽  
Coarse Grained Soil

scholarly journals Viscoelastic Parameter Prediction of Multi-Layered Coarse-Grained Soil with Consideration of Interface-Layer Effect

2020 ◽  
Vol 10 (24) ◽  
pp. 8879
Author(s):  
Jie Zhang ◽  
Qiuhua Rao ◽  
Wei Yi
Keyword(s):  
Research Work ◽  
Interface Layer ◽  
Homogenization Method ◽  
Coarse Grained ◽  
Viscoelastic Parameter ◽  
Layer Height ◽  
Viscoelastic Parameters ◽  
Layer Effect ◽  
Actual Shape ◽  
Coarse Grained Soil

Study on viscoelastic properties of the multi-layered coarse-grained soil (CGS) is very important for safety assessment and disaster prevention of subgrade engineering. Current research work is mainly focused on the one-layered CGS and the actual pebble inclusion of irregular polyhedron is usually simplified as an ideal shape of sphere or ellipsoid. Very few studies are available for predicting viscoelastic parameters of the multi-layered CGS. In this paper, a new method is proposed to predict viscoelastic parameters of multi-layered CGS based on the homogenization method and elastic–viscoelastic corresponding principle, in which the interface-layer viscoelasticity and the actual shape of pebble inclusion are firstly taken into account. Research results show the creep deformation is decreased with the increase of the shape factor (ρ) of pebble inclusion, and the interface-layer height (h) and numbers (N). ρ is in the range of 1–1.8 and the suitable interface-layer height is 20–30% as much as the height of one-layered CGS. The tested creep curves of the multi-layered CGS agree well with the predicted ones and can prove the existence of the interface-layer (considering at least one interface-layer) and verify the validity of this new interface-layer method.

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