Dynamics of a shallow underground two-layer pipeline under the moving loads
Girnis S. Ukrainets V. Stanevich V. Gorshkova L.
30 September 2024Marcílio Alves
Latin American Journal of Solids and Structures
2024#21Issue 10
The mathematical modeling of the dynamics of a two-layer shallow pipeline under the influence of transport load (the load created by an object moving along the pipeline) has been successfully resolved. The pipeline is represented as an extended circular cylindrical two-layer shell with a thin inner (bearing) layer and a thick outer (enclosing) layer situated in an elastic half-space. Dynamic equations of elasticity theory using Lamé potentials are utilized to describe the motion of the half-space and the enclosing layer of the shell. The vibrations of the bearing layer of the shell are described by the classical equations of the theory of shells. Numerical experiments have considered the case of a moving axisymmetric cylindrical normal load applied to a pipeline (without an enclosing layer and with an enclosing layer of varying thickness and material stiffness). It was demonstrated that if the material of the enclosing layer of the pipeline is more rigid than that of the rock mass, the dynamic effect of the moving load on the rock mass is reduced.
displacements , Elastic half-space , moving load , pipeline , stresses , two-layer shell
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Faculty of Architecture and Construction, Toraighyrov University, Pavlodar, Kazakhstan
Faculty of Architecture and Construction
10 лет помогаем публиковать статьи Международный издатель
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