Intermediate shaft – tunnel section of km. 11 + 966.34 to km. 5 + 248.57

HIDROINJEKT Ltd. performs the strengthening of the subproject: Intermediate shaft, representing part of the 3rd metro diameter, tunnel section from km 11 + 966.34 (starting shaft) to km 5 + 248.57 (exit shaft).

The following have been fulfilled:

• slotted walls with a thickness of 0.80 m and 0.60 m – a total of 1410 m³, metal structure – 147 tons;
• execution of compaction piles with 2T profiles type Berlin Wall and connecting beam to them – 33.25 tons;
• excavation to the elevation of the foundation slab and execution of the foundation slab.

A waterproofing tape is also used in the implementation, which significantly improves the watertightness of the slotted walls.