For Rijkswaterstaat, the Princess Beatrix lock project is the second ‘wet’ DBFM project (Design – Build – Finance – Maintain) in the Netherlands, after the Limmel flood lock, another project Agidens was involved in.
The Sas van Vreeswijk consortium (Besix, Jan De Nul and Heijmans) became responsible for the design, realization, financing and maintenance of the Beatrix lock. As a subcontractor, Agidens carried out the entire system integration for the operation, control and monitoring and is also responsible for the 27-year maintenance period (together with Martens & Van Oord).
From the start of the project, the focus was on maximum availability of the locks. Starting from the basic concept of a lock with 4 roller doors, a complete redundancy was built into the design eliminating any ‘single point of failure’ in the system.
Characteristic of the project was the total freedom that was offered for the technical implementation of the design, in combination with a process (EN15288) for securing the functional requirements within this very extensive scope.
Build third lock with double roller doors.
Renovation of the mechanical engineering, drive and electrical installation of the National Monument (existing locks 1 and 2) while retaining the monumental character.
Relocating the control room to the previous lockkeeper houses (white houses).
Widening the Lek Canal.
27 years of maintenance with focus on maximum availability.
Scope Agidens Infra Automation
Process design / engineering
Testing & Commissioning
Maintenance (27 years)
With the construction of the third chamber, more and larger ships can now pass through the Lek Canal. In addition, by widening the canal, there is additional space for berths.
The third chamber was fitted with 4 roller doors, a concept that forms the basis of the redundant architecture of the entire system. In the event of malfunction or maintenance, 2 doors always remain operational. If only the outer doors are used, the chamber is 291m long (useful chamber length) and space is created for securing two ships of 135m each. This is called ‘locking XL’.
PLC redundancy (Siemens S7-400 FH) is realized with integrated safety. As a result, only 4 hours of unplanned unavailability was realized in the first year after commissioning, compared to a requirement of 22 hours per year.
that allows almost all maintenance to be carried out without the lock being unavailable.
in the white houses based on a camera installation and ten thousand I / O throughout the lock complex.
thanks to the increased capacity of the locks, the high availability and the widening of the Lek Canal.
followed by reporting and demonstration (V&V file) of the entire complex 3 weeks after the test was carried out.