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/ Applications of data science and big data analytics in underground transportation infrastructure (UTI-UTC 02) https://rip.trb.org/View/2543307 Wed, 07 May 2025 19:00:43 GMT https://rip.trb.org/View/2543307 Developing Machine Learning (ML) Techniques to Predict Tunnel Performance and Stability (UTI-UTC 09) https://rip.trb.org/View/2543317 Wed, 07 May 2025 18:57:00 GMT https://rip.trb.org/View/2543317 Experimental Investigation of Rockburst Phenomenon in Tunnels Using a True-triaxial Apparatus (UTI-UTC 15) https://rip.trb.org/View/2543410 Wed, 07 May 2025 18:43:38 GMT https://rip.trb.org/View/2543410 Framework for dynamic risk assessment in subsurface excavation projects (UTI-UTC 20) https://rip.trb.org/View/2543415 Wed, 07 May 2025 18:08:14 GMT https://rip.trb.org/View/2543415 Hydro-mechanical analysis of tunneling in saturated ground using an efficient sequential coupling technique (UTI-UTC 22) https://rip.trb.org/View/2543417 Wed, 07 May 2025 18:01:06 GMT https://rip.trb.org/View/2543417 Mapping Urban Excavation Induced Deformation in 3D via Multiplatform InSAR Time-Series (UTI-UTC 27) https://rip.trb.org/View/2543420 Wed, 07 May 2025 17:45:19 GMT https://rip.trb.org/View/2543420 New excavation technologies for underground construction (UTI-UTC 29) https://rip.trb.org/View/2543422 Wed, 07 May 2025 17:29:04 GMT https://rip.trb.org/View/2543422 Probabilistic rock mass quality prediction model and its application to tunneling design (UTI-UTC 31) https://rip.trb.org/View/2543424 Wed, 07 May 2025 17:19:00 GMT https://rip.trb.org/View/2543424 Refinement of Shear Strength Properties for Geotechnical Design https://rip.trb.org/View/2021854 Tue, 13 Sep 2022 09:18:34 GMT https://rip.trb.org/View/2021854 RES2023-14: Improved Management Strategies of Processing Acid Producing Materials on Transportation Projects https://rip.trb.org/View/2006283 Fri, 12 Aug 2022 14:16:23 GMT https://rip.trb.org/View/2006283 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 Experimental and Analytical Modeling of Tunnels in Squeezing Ground Conditions (UTI-UTC 14) https://rip.trb.org/View/1500818 σ2>σ3. A small model earth pressure balance (EPB) tunnel boring machine (TBM) will be designed that can simulate excavation similar to real on site tunneling. Monitoring will be done using acoustic emission (AE), borehole extensometer, strain gages and accelerometers will be installed in TBM and on the cubical specimen. The critical conclusions and correlation developed from the experimental results will contribute significantly and will be give better insight into the problem of tunnel squeezing.]]> Fri, 16 Feb 2018 19:26:13 GMT https://rip.trb.org/View/1500818 Adaptive, predictive 3D geologic modeling for hard rock tunneling (UTI-UTC 01) https://rip.trb.org/View/1500822 Fri, 16 Feb 2018 16:19:35 GMT https://rip.trb.org/View/1500822 Requirements, Model and Prototype for a Multi-Utility Locational and Security Information Hub https://rip.trb.org/View/1354415 Wed, 20 May 2015 01:01:07 GMT https://rip.trb.org/View/1354415 Exploratory Analysis of Augmented Reality Visualization of Right-of-Way Excavation Safety https://rip.trb.org/View/1335204 Fri, 12 Dec 2014 01:01:11 GMT https://rip.trb.org/View/1335204