Evaluation of Soil Coefficients for Two-Parameter Subgrade Soil Model Based on Rigid Plate Loading Tests

2020 ◽  
Vol 44 (3) ◽  
pp. 20190150
Author(s):  
Wang-Xi Zhang ◽  
Rui Liu ◽  
Xuan-Xun Yuan ◽  
Hyeon-Jong Hwang ◽  
Wei-Jian Yi
Keyword(s):  
Rigid Plate ◽  
Model Based ◽  
Soil Model ◽  
Subgrade Soil ◽  
Loading Tests ◽  
Plate Loading ◽  
Two Parameter

Bounding Solutions for Performance of Vibratory Plows

1974 ◽  
Vol 96 (3) ◽  
pp. 954-959
Author(s):  
L. J. Scerbo ◽  
D. L. Pope
Keyword(s):  
Velocity Vector ◽  
Constant Amplitude ◽  
System Parameters ◽  
Soil Model ◽  
Simple Equations ◽  
Two Parameter

This paper discusses the reduction in the applied drawbar force required to penetrate soil with vibrating plows. Harmonically forced linear and orbital motions of a plow blade are investigated. A rigid blade, vibrating with constant amplitude and a two-parameter soil model is used to represent the system. The assumption that the soil force opposes the instantaneous blade velocity vector is sufficient to describe the soil-blade interaction. Bounding solutions, which relate applied drawbar force to average plowing speed and other system parameters, are obtained as simple equations. These equations put into perspective the relative merits of each of these vibratory motions.

Foundation design for the Skydome Stadium, Toronto

1989 ◽  
Vol 26 (1) ◽  
pp. 22-33 ◽  
Author(s):  
K. Y. Lo ◽  
B. H. Cooke
Keyword(s):  
Size Effect ◽  
Laboratory Tests ◽  
Geological Mapping ◽  
Foundation Design ◽  
Field Plate ◽  
Deformation Properties ◽  
Rock Mass Modulus ◽  
Strength And Deformation ◽  
Loading Tests ◽  
Plate Loading

The construction of the Skydome Stadium will provide Toronto with the first multipurpose stadium in the world with a retractable roof. The foundation for the structure, with a diameter of about 210 m and a height of about 86 m, will be supported by several hundred columns, about 100 of which will have loadings up to 50 000 kN. The foundation rock is a shale with numerous highly weathered zones and clay seams. Laboratory tests to investigate the strength and deformation properties of these weak layers were performed. Field plate loading tests at two locations with three different size plates were also carried out to study the size effect on the mass modulus of the rock. This paper presents the results of detailed geological mapping and field and laboratory tests together with design considerations for the foundations. The field acceptance criteria, developed to ensure that the differential settlements between foundations are within specified limits, are also discussed. Key words: Skydome, shale, clay seams, plate loading tests, rock-mass modulus, size effect, layered rocks.

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