Everything is Deeper in Texas SAWS - Tunneling in the Navarro Claystone


Speaker: Daniel Maine, Brierley Associates, Austin, Texas

Aging infrastructure and increasing demand on sewer systems in San Antonio, TX is driving utilities to be bigger, deeper, and along more challenging alignments. Design for the replacement of a 54-inch sewer line through Lackland Air Force Base with a 104-inch sewer, via tunneling is underway. This 28,000-foot tunnel with eight shafts will be excavated through the challenging Navarro Formation Claystone. Challenges in designing this tunnel and how case histories of tunneling in this and similar formations helped develop the final design are discussed.

Recorded Date: June 10, 2020
Speaker(s): Daniel Maine
Format: MP4
Download Size: 288 MB
Length: 42:34


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