Apparatus for making earth bores

摘要

An apparatus for making earth bores with simultaneous emplacement of pipe, especially for making well bores, includes an earth boring device (10) with a drive device (12) and a displacement head (14) coaxial with the drive device (12). The outer diameter of the displacement head is larger than that of the drive device (12) and of the surrounding pipe (16) with the pipe being connected to the drive device with a releasable force fit connection, wherein at least three pressure fluid jet nozzles (18) are arranged on the displacement head (14) pointing nearly in the boring direction and arranged at least nearly symmetrical to the longitudinal axis of the displacement head (14).