Omega Seals in Bored Tunnels

To meet the need of miners working in compressed air and to eliminate the risk of collapse of tunnel face, tunnel boring machines (TBM) are developed for such purpose.

In bored tunnels with precast segments which are placed together to form rings, creating an interlocking system which ensures a safe and secure concrete shell for the tunnels installed with waterproofing material as ASG. At the end of bored tunnels, connection between station should have the continuity. Arsan Omega Seals are supplied as a closed ring. The waterproofing of the joint is further reinforced by installing an omega seal, covered and installed with a steel plate as shown in below photo at the right corner.

The expected lifetime of Arsan Omega seal is at least 100 years. The operating temperature is within -30° C and +80° C.

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