Tunnel sealing is the process of isolating or closing off sections of underground tunnels to maintain safety, enable repair, or for long-term ab...
Published on by Phil Lundman, Owner at Petersen Products Co

https://www.petersenproducts.com/articles/tunnel-sealing-how-to-seal-off-tunnels-for-emergency-or-long-term-closure.html
Taxonomy
- Building Construction
- Heavy Construction
- Bridge & Tunnel Construction