Influence of energy characteristics of vibropercussion source on efficiency of soil plug removal from casing pipes

Abstract

This article describes the method of virbopercussion ramming of an open-ended steel pipe in soil. The study focuses on interaction between the pipe and internal soil plug by the law of dry friction. The test bench for the effect exerted by impact impulses on displacement of soil plug is presented. The reduction in the friction force under the simultaneous static influence on the soil plug and vibropercussion load on the pipe is evaluated. The influence of energy characteristics of vibropercussion source on the efficiency of soil plug removal from the pipe is determined.