Backfilling between Tunnels 31.1 & 32 on 11/05/2024

Backfilling between Tunnels No.30 & 32 on 05/12/2023

Backfilling between Tunnels No.30 & 32 on 02/12/2023

Backfilling between Tunnels No.22 & 23 on 11/09/2023

Backfilling between Tunnels No.22 & 23 on 11/09/2023

Backfilling between tunnels No.22 & 23 on 16/08/2023