Client: Capital city Prague
Building of a sewerage by a trenchless technology – tunnelling method, profile LB3, excavated place underground 3,5m², total length of 857 meters. From the hydrological point of view whole project is done below water level. Geological features of encountered rocks – especially slate, in some places with unconfined compressive strength of over 90 MPa. Excavated 13 shafts with depth of 5.5 – 14.29 m.