Tunnels: Difference between revisions
From ASDSO Dam Safety Toolbox
(Created page with "<!-- Delete any sections that are not necessary to your topic. Add pictures/sections as needed --> __NOTOC__ ---- <!-- Introductory paragraph or topic page summary --> A long underground excavation with two or more openings to the surface, usually having a uniform cross section used for access, conveying flows, etc. Tunnels are most often used in mountainous areas. Tunnels can be divided into two basic types, lined and unlined. ==Best Practices Resources== {{Document I...") |
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Tunnels are long underground excavations with two or more openings to the surface, usually having a uniform cross section used for access, conveying flows, etc. Tunnels are most often used in mountainous areas. Tunnels can be divided into two basic types, lined and unlined. | |||
==Best Practices Resources== | ==Best Practices Resources== | ||
Revision as of 06:01, 16 September 2022
Tunnels are long underground excavations with two or more openings to the surface, usually having a uniform cross section used for access, conveying flows, etc. Tunnels are most often used in mountainous areas. Tunnels can be divided into two basic types, lined and unlined.
Best Practices Resources
Citations:
Revision ID: 3396
Revision Date: 09/16/2022