Pipe bundle ø 360 mm (14“) laid underneath a small river

TERRA JET 2808
© TERRA AG, Reiden, Switzerland
In the little Swiss city Mümliswil the TERRA-JET 2808 S laid a pipe bundle consisting of three pipes underneath the „Mümliswiler Bach“ (small river in Mümliswil). This pipe bundle consisted of a protection pipe OD 132 mm (5.2”) for electricity, a protection pipe OD 92 mm (3.6“) for fibre optic and a pressure pipe OD 63 mm (2.5”) for water. The pilot bore had to be reamed in steps up to ø 360 mm (14“). Then the pipe bundle could be pulled in. This HDD bore was done by the contractor Candoni from Günsberg. Since many years Candoni is a specialist for trenchless pipe and cable laying. The drilling fluid is mixed. Besides the special Bentonite other additives were used to improve the quality. The TERRA-JET 2808 S is loaded on to a truck. Alternatively it can be transported on a trailer with ramps. The backreamer ø 360 mm (14“) with pipe bundle (1x OD 132 mm, 1x OD 92 mm, 1x DA 63mm).
LKW Anhänger mit Auffahrrampen
© TERRA AG, Reiden, Switzerland
Bedienungsmann bei der Pilotbohrung
© TERRA AG, Reiden, Switzerland
Spülflüssigkeit mischen
© TERRA AG, Reiden, Switzerland

backreamer mit Rohrbündel
© TERRA AG, Reiden, Switzerland
Rohrbündel verlegt
© TERRA AG, Reiden, Switzerland
TERRA JET 2808 Seitenansicht
© TERRA AG, Reiden, Switzerland

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