Installed 1.8 kilometres of 300mm and 200mm dia. steel gas main. The twin lines were installed four metres apart, at depths of up to 15m and on mirrored compound curved alignments in very challenging ground conditions. The alignments passed under multiple high-risk elements such as rivers, highways and buildings all during the same shot. Installed a 710mm dia. PE stormwater pipe to a critical grade of 0.3%. Installed 500m of multiple ducting clusters for communication & power services on compound curves and in parallel alignment. All installations were undertaken using the Herrenknecht maxi rig & MPR recycling unit. Engineering and design work assistance by MJS.
