Koop Bronbemaling has been asked and commissioned to design and construct the drainage system together with L2T.
The drainage system consists of a drainage to prevent cracking of the concrete floor and additionally an open drainage to pump the leakage water away. The voltage drainage is driven in a frequency-controlled manner and the groundwater levels are monitored via an online platform. For the voltage drainage, 16 sources have been installed up to approximately 20 m-mv, by means of a suction drilling rig. The operational reliability of the drainage system is guaranteed by means of a telephone alarm and automatic back-up system.
Any leakage water through the sheet pile wall is pumped away using bell pumps. The drainage system has created a safe / dry working situation on the floor of the lock chamber (approx. 14 meters deep).