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In this paper based on the assumption of the isotropic elastic soil, Modified Winkler Foundation Model is established and a equivalent stiffness equation which considering the shear function of soil is derivated. The modified Winkler foundation model is compared with three other equivalent spring stiffness to study the sensitivity of the parameters. Pile-Soil interaction of FEA models are studied...
In order to study the stress path in soil element of ground under moving train load and the influence of moving speed, depth and the initial stress state of soil element on the stress path, the steady-state solution of stresses in ground were obtained based on the model of Euler beam on elastic half space under one moving load. The stress path in soil element under the load moving line was analyzed...
The term of quasi-saturated soil is not currently used in the literatures. However this type of soils is distributed extensively, such as the soils formulated by air sparging as a remediation technology for treatment of contaminated aquifers. In engineering, quasi-saturated soils are usually considered as saturated soils. Nevertheless the characteristic of quasi-saturated soils is very different from...
In order to study the seismic responses of saturated sand, a group of centrifuge-shaking table tests on saturated medium dense sand and dense sand are conducted at the institute of technology, SHIMIZU Corporation in Japan. Then finite difference software FLAC/FLAC3D is used to calibrate the experimental results. Ideal elastic-plastic model, Mohr-Coulomb's criterion and Finn's pore pressure generation...
Shear strength of granulated rubber and loess mixtures were investigated through direct shear test to evaluate the possibilities of the used tire as a lightweight fill material in geotechnical engineering. Test results indicated that the shear strength increased dramatically, at the content range of approximately 30%, higher than either pure granulated rubber aggregates or pure compacted loess. The...
There is high requirement to the foundation of the raceway of container gantry crane. However, the marine soft soil is distributed extensively at ports. How to predict and control its settlement is a key to assure the design safety of container gantry crane. In the paper, the settlement and bearing capacity of natural and composite foundation of raceway of container gantry crane under design load...
Forests are rarely limited by only a single pollutant or environmental factor, yet experimental investigations are usually limited to one or two stress factors and to short durations. Simulation models provide a means of exploring the long-term effects of multiple natural and anthropogenic stresses on forest health. Sixteen simulation models were applied to a Norway spruce site at Solling (Germany)...
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