Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ Evaluating the use of recycled and sustainable materials in self-consolidating concrete for underground applications (UTI-UTC 13) https://rip.trb.org/View/2543408 Wed, 07 May 2025 18:48:14 GMT https://rip.trb.org/View/2543408 Fast Running Application for Evaluating Fire Resilience of Tunnel Systems (UTI-UTC 17) https://rip.trb.org/View/2543412 Wed, 07 May 2025 18:24:28 GMT https://rip.trb.org/View/2543412 Fire Resistance of Tunnel Liners with Fiber-Reinforced Concrete (UTI-UTC 18) https://rip.trb.org/View/2543413 Wed, 07 May 2025 18:18:55 GMT https://rip.trb.org/View/2543413 Interaction of Mechanical Systems with Structurally Significant Fire Events (UTI-UTC 25) https://rip.trb.org/View/2543419 Wed, 07 May 2025 17:52:24 GMT https://rip.trb.org/View/2543419 Mechanical Characterizations of Joints in Segmented Tunnel Liners Due to Flexural and Thrust Jack Loading (UTI-UTC 28) https://rip.trb.org/View/2543421 Wed, 07 May 2025 17:37:37 GMT https://rip.trb.org/View/2543421 Resilience Assessment of Tunnels Exposed to Blast (UTI-UTC 33) https://rip.trb.org/View/2543426 Wed, 07 May 2025 17:10:59 GMT https://rip.trb.org/View/2543426 Simplified Calculation of Liner and Soil Deformations in Tunnels Subjected to Internal Explosions (UTI-UTC 34) https://rip.trb.org/View/2543427 Wed, 07 May 2025 17:05:05 GMT https://rip.trb.org/View/2543427 Understanding cross passage ground-structure interaction using data from the Seattle Northgate Link transit extension project (UTI-UTC 39) https://rip.trb.org/View/2543429 Wed, 07 May 2025 16:51:41 GMT https://rip.trb.org/View/2543429 Fire Resistance of Tunnel Surfaces (UTI-UTC 42) https://rip.trb.org/View/2543432 Wed, 07 May 2025 16:05:18 GMT https://rip.trb.org/View/2543432 Mechanical Characterizations of Joints in Segmented Tunnel Liners Due to Flexural and Thrust Jack Loading (UTI-UTC 43) https://rip.trb.org/View/2543433 Wed, 07 May 2025 15:59:38 GMT https://rip.trb.org/View/2543433 TBM Tunnel Liner Design Guidelines https://rip.trb.org/View/2100885 Wed, 18 Jan 2023 11:17:31 GMT https://rip.trb.org/View/2100885 Characterization of delamination processes with respect to waterjet shotcrete removal during tunnel liner repair and maintenance (UTI-UTC 04) https://rip.trb.org/View/1498481 Fri, 16 Feb 2018 19:46:05 GMT https://rip.trb.org/View/1498481 Continuous automatic detection of cracks in tunnels using machine learning and artificial intelligence techniques for safety monitoring (UTI-UTC 06) https://rip.trb.org/View/1500813 Fri, 16 Feb 2018 19:32:38 GMT https://rip.trb.org/View/1500813 Development of a blast and fire resistant structural tunnel liner (UTI-UTC 10) https://rip.trb.org/View/1500821 Fri, 16 Feb 2018 16:16:34 GMT https://rip.trb.org/View/1500821