Shoring work was required for the construction of a new extinguishing water tank and rainwater retention basin on the site of the planned Bad Lauchstädt energy park. The shoring was designed as a partially back-anchored, closed and sealed sheet pile wall box. These were temporary construction pit stabilisation measures. The excavation pits were realised with 1490 square metres of closed, sealed sheet piling. 45 prestressed grouted piles with a total length of 540 metres were installed to tie back the sheet pile wall.