Simulation of Metal Pipe Driving in Soil with Batchwise Removal of Plug

Аннотация

The interaction of an open pipe with an internal soil plug according to the Coulomb’s law of dry friction is investigated. Different soil and pipe models are considered. For all models, finite-difference solutions are obtained, for some—analytical solutions describing the process of elastic interaction of a pipe and a plug. Good agreement between numerical and analytical solutions is shown. The results of numerical calculations for different models are compared and the applicability limits of the models are determined. The effect of Coulomb dry friction on the process of pipe and plug movement is studied.