Pipeline construction: Construction of a new liquid gas terminal with telescopic crane

The SENNEBOGEN 683 E is a robust telescopic crawler crane designed for challenging construction sites like this one. This is because the large-scale project several kilometers long on the Italian west coast is to be implemented in the shortest possible time. The flexible 80-tonner is literally on the job from start to end - from the ship's dock to the injection point - and handles all the lifting work. This includes first and foremost the laying of the pipe components, with the heaviest part, a line filter, weighing 32 t, but also includes the handling and assembly of precast concrete parts for the construction of the service and control building, in which the gas supply to the national grid is controlled. The advantage of the new telescopic crawler crane on this pipeline project is that it easily copes with the rough terrain there. With its telescopic crawler undercarriage, it simply moves itself along with the construction site from section to section. In tight spots, the track width can be flexibly reduced from 4.2 m to as little as 2.68 m while the machine is still in motion.

In addition, in pick-and-carry operation, it can even travel with 100% of the specified load on the hook and is therefore able to pick up the pipes and precast concrete parts from the transport frame, bring them directly to the assembly site and install them there straight away. Its telescopic boom – a continuously telescoping 43 m long full power boom – which can also telescope with load on the hook, also gives flexibility and speed in lifting and laying operations where a greater distance from the pipe trench is required. This also applies when the crane is inclined up to 4 degrees. On the whole, the greatest outreach so far was 42 meters with loads of about 1,5 t for concrete plinths and line flow meters. In this way, one pipe component after the other can be precisely brought into position and fast construction progress achieved.