Method for trenchless introducing pipe into soil, involves applying longitudinal forces after introducing pipe, and directing longitudinal forces opposite to forces exerted for introducing pipe to compensate conditional extension of pipe

摘要

The method involves pushing or drawing-out a pipe through soil by applying tensile or compressive force. Longitudinal forces are applied after introducing the pipe, and directed opposite to forces exerted for introducing the pipe to compensate conditional extension of the pipe. A connection with the pipe is produced after compensating extension of the pipe at a location. The compressive forces are applied by applying impact impulses. The pipe is drawn-out through the soil by a shaft extractor arranged in a target shaft (3), and pushed by a thrust device arranged in a starting shaft (2). An independent claim is also included for a device for executing a method for trenchless introducing a pipe into soil.