TERRA MINI-JET drills right on target

MJ 1600 in der Grube, MJ 1600 in the pit © TERRA AG, Reiden, Switzerland
Two new house connections for electrical power and gas had been laid in Siegen, Germany by horizontal directional drilling (HDD) within a few hours. The contractor Thomaschewski GmbH from Buseck decided to lay the new pipes underground with the TERRA MINI-JET MJ 1600, because earlier trials with underground piercing tools failed due to the ground conditions. A pipe bundle of two HDPE pipes OD 63 mm (2.5”) had been pulled in. The pilot bore had to be drilled very carefully and precisely, because of existing pipes in the ground. View along the drill path. The pilot bore was guided around rocky areas. The components of the pit drill are posi-tioned besides the starting pit. The drill head arrives in the pit „right on taret“. The 3-fingerhead was chosen due to the hard ground conditions. The pipe bundle just before backreaming. The 2x HDPE pipes OD 63 mm (2.5“) after pipe pulling.
kleiner Gehweg im Garten, small sidewalk in the garden © TERRA AG, Reiden, Switzerland
Blick in Bohrrichtung, view onto the bore channel © TERRA AG, Reiden, Switzerland
Module auf engstem Raum, components positioned beside the pit © TERRA AG, Reiden, Switzerland

Bohrkopf erreicht sein Ziel, drill head arrives in the pit © TERRA AG, Reiden, Switzerland
Rohrbündel vor dem Rohreinzug, pipe bundle before backreaming © TERRA AG, Reiden, Switzerland
Schutzrohre  nach dem Einzug, HDPE pipes after pipe pulling  © TERRA AG, Reiden, Switzerland


TERRA AG für Tiefbautechnik - Hauptstrasse 92 - 6260 Reiden - Schweiz - Tel. +41 62 749 10 10 - office@terra-eu.eu