Patent ID: 8763344

Claim:
A method for erecting an underground structure, characterized in that a shaft is sunk at the erection site and the shaft is closed off by a cover in which an opening is provided, in that a lifting/lowering device is provided in the region of the opening, in that a locking mechanism is provided in the shaft in the region of the opening, in that a section of the structure is provided in the region of the opening and is connected to the lifting/lowering device, is lowered through the opening down to the locking mechanism and locked and is then released from the lifting/lowering device after locking, in that a process cycle is performed in which a further section of the structure is provided in the region of the opening, said section is connected to the lifting/lowering device and to the locked section of the structure, then the locking of the previous section is released, the structure sections situated in the shaft are lowered until the uppermost section is situated in the locking region, and the uppermost section of the structure is locked, and this process cycle is repeated until the sections required for erecting the underground structure have been inserted into the shaft, characterized in that the lifting/lowering device comprises a stationary bridge above the opening.