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Took into consideration the coupling effect of thermo, hydraulics and mechanics, a set of thermo–hydro-mechanical coupled wave equations for fluid–saturated soil are developed. In these wave equations, the $$P_{3}$$ P 3 -wave in solid phase and $$P_{4}$$ P 4 -wave in fluid phase are coupled into $$T$$ T -wave in fluid–saturated soil by the assumption that the temperature...
In this paper, the mechanism for different type of temperature cracks in asphalt pavement is analyzed. Further-more, fatigue life of the asphalt pavement containing reflective cracks in the base is predicted by using the Paris law. The relationship between the stress intensity factor and the crack length is established through the finite element model. Then, the fatigue life of the pavement is acquired...
Three-dimensional (3D) transmission of vibration in an infinite elastic thin plate on a layer of poroviscoelastic medium, due to a harmonic, rectangular moving load, is investigated theoretically based on Biot’s theory. The material of the medium is idealized as a uniform, fully saturated poroviscoelastic layer on bedrock. By introducing four scalar potential functions and Helmholtz decomposition...
According to the theory and principle of mass rail transit network planning, six schemes are presented in Ningbo urban mass rail transit. Further more, the analytic hierarchy process (AHP) model is used to evaluate the decision in the urban mass transit network planning and the multilayer model of the factors is developed in this paper. As a result, the recommended scheme is obtained, that is scheme...
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