Method for determining the position of a pipe laid in the ground

摘要

In a method for determining the position of a pipe (2) laid in the ground, a position element (3) is set up vertically above the pipe (2) on the surface (1) of the terrain, and ultrasonic or high-frequency pulses are conducted vertically into the ground. The time interval between the emission of the pulses and reception of the radiation reflected from the pipe (2), which has a metal coating or metal insert and consists of metal, is measured. <IMAGE>