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Duncan E-B model has been widely used in engineering practice. And how to determine the parameters of the model accurately and easily is the main step to ensure the reliability of the results. Based on BP neural network in MATLAB toolbox, this paper aim to establish the non-linear relation between the density γ, porosity e and the constitutive model parameter K (Kb, Rf, Q0) which is difficult to be...
In ordering to improve the rockfil' compaction effect more better, this paper combines with the project experience and roller compaction test to analyze some factors affecting compaction of rockfills, such as rockfill characteristics and gradation, maximum grain size, construction machinery, rockfill thickness, maximum grain size, times of compaction, amount of water and so on. Summarizing the obvious...
In view of CFRD widely prospects for development, this paper taking Shuibuya concrete face rockfill dam of simplified model as an engineering example,to simulate the process of dam filling, the use of ANSYS in the most widely used APDL (Parmetric Design Language) language programming, the Duncan E-B model willing achieved in the form of user materials,and using the midpoint of an incremental method...
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