Lomé Container Terminal GSI

Client

LCT

Period

February 2011 – January 2014

Location

Lomé, Togo 

Lomé Container Terminal GSI

Client

Angola LNG Limited

Period

July 2015 to Current Date

Location

Soyo, Angola

Download

Lomé Container Terminal GSI

LCT, contracted PMI Ltd to perform a number of site investigations for the expansion project of Lomé container terminal. Expansion plans involved the construction of a new harbour basin and quay walls for bigger container vessels. The access channel and turning circle were also dredged to deeper depths to accommodate the container vessels with a deeper draft.

Scope of Works

The complete scope of works was executed in a number of stages across a broad time frame. The complete scope of work was as follows:

Marine Surveys:

  • Bathymetric surveys
  • Side scan sonar surveys
  • Sub-bottom profiling
  • Sediment sampling
  • Magnetometer survey

Offshore Geotechnical:

  • 18no Vibrocores
  • Grab Samples
  • 10no seabed CPTu tests

Onshore Geotechnical:

  • 21no onshore boreholes
  • 85no onshore CPTs

Marine Conditions Surveys:

  • 3no AWAC monitoring buoys installed for 3 month period to obtain local wave, current and tidal data.

Execution

The GSI work was performed using the broad spectrum of PMI’s resources including the following:

  • Multicat Vessel PMI Tiger and Geocorer vibrocore machines;
  • 200kN Geomil truck mounted CPT Rig;
  • Fraste Hydraulic Rotary core/percussion drilling rig;
  • Marine survey vessel – PMI Solstice;
  • Bathymetric and geophysical surveying equipment;
  • Total stations and GPS equipment;
  • Professional engineers and support staff

The contract was executed successfully and the quality data obtained from the site investigations helped the Client save a significant portion on the final contract value of the newly constructed port expansion.

In July 2010 Puma Energy experienced a tanker break-out at their CBM mooring system at the oil products terminal in San Jose, Guatemala. In consequence, PMI were appointed to analyse the existing CBM terminal, and to design and oversee the execution of the required upgrades to the mooring system.

Scope of Works

  • Marine engineering system analysis of the existing terminal configuration.
  • Design of the upgraded terminal configuration and operability.
  • Preparation of mooring/operability tables for the management of mooring decision making processes.
  • Preparation of the terminal Operations and Maintenance manual.
  • Budget estimates for the procurement of the upgrades.
  • Construction oversight of the upgrade works.

The Works

PMI undertook a site visit to the terminal after the tanker outbreak, to assess the situation on the ground, and to gather information.
The existing terminal was then analysed against simulated expected environmental conditions, using modeling software resources.
Upgrades to the terminal were then designed, such that the terminal could accommodate the Client’s product vessel requirements at reasonable operabilities.
Upgrades included the installation of two new mooring buoys as a required replacement for the previous system that relied on ships anchors for mooring in the associated quadrant of the system. PMI compiled mooring tables to assist terminal operators in the decision making process regarding mooring permission as a function of prevailing environmental conditions.
PMI prepared execution budgets, and were present on site as Owners Engineer for the installation and testing of the two new mooring buoys.

Conclusion

The project was executed to the Client’s satisfaction.