Design of the system via off-bottom pull with the support of chains

The pipeline characteristics are as follows:

•     . Discharge flow rate: 11.3 m3/s

•     . Inside diameter: 2,400 mm

•     . Maximum depth: 60 m

•     . Length: 3,627 m                      

  Various jobs were done relating to the definition of the bottom pull construction process:

•     . A current study (magnitude and direction)

• •     . The forces generated by the waves and the currents were estimated

  •     . The design of three types of floaters: flotation, regulation and pull

  •     . Modelling with 3D Structural Anaysis Software

  •     . The calculation and construction layout of the chains

  •     . The design of the tugging system: end pieces and cables, pulleys and their securing

  •     . The design of a complementary fixing system with anchors and cables