Providing Precast Solutions in Ontario

Precast Tunnel Liner Segments

Specialized and used in large diameter, bored tunnels

•Proven strength, durability and dimensional accuracy
•Custom segment thickness, length and radius
•More cost-effective than poured-in-place large diameter tunnels

Liners are manufactured to a specific design radius in a series of segments. Segments are installed in the field to form a complete ring that supports the surrounding soil and rock.

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