Builder: SIGNA Real Estate Management Germany GmbH

Location: Hamburg

Mountain formation: Loose formation

Drilling method:Dry and pressure flushing drilling, RKR coreing

Number of holes: 30

Drilling depth in m: 100

Total drilling meters: 800

Drilling Ø in mm: 324/178/180

Drilling Ø in mm: 324/178/180

Purpose of the drilling:

Subsoil investigation program.
8 pressure soundings with MagCone for the release of explosive ordnance, 2 pressure soundings with measurement of pore water pressure up to 94 m and GOK, 20 pressure sounding - pressureometer tests at 2 locations up to 70 m and GOK, 1 downhole seismic up to 35 m and GOK, coreing RKR with liners, groundwater – Sampling was carried out, some boreholes were expanded.

In order to prepare a subsoil and foundation report, explorations for the geotechnical assessment of the subsoil as well as additional seismic investigations were carried out on the construction site of the planned Elbtower Hamburg. Due to the limited accessibility of the terrain, the explorations were divided into two campaigns.