RESULTS OF NUMERICAL MODELING OF SEISMIC WAVES IMPACT ON UNDERGROUND PIPLINE
General equations of continuum mechanics, the theory of thin shells and hydraulics equations are used for formulation a mathematical model of the pipeline in the rocky ground. The mathematical model permit to calculate the speed of displacement of the tube wall under the influence of seismic waves. The problem is formulated in the plane formulation for direct integration of the original system of equations, the method of finite differences. At the contact rocky ground and pipeline considered boundary conditions of the form: "slippage" and "rigid clamping." The mathematical model is implemented in a computer program on the algorithmic language Fortran 90. This paper contains a comparative analysis of the results of numerical and physical experiments - compares the value of the velocity components of displacements on the surface of the soil. The values of the velocity components of displacements of the pipeline wall under the influence of seismic loads.