North American Tunneling 2020 Proceedings [electronic resource].

Description based upon print version of record.

Cover -- Copyright -- Contents -- Preface -- TRACK 1: TECHNOLOGY -- Session 1: Ground Support -- Union Square Market Street Station: Deep Battered Drilled Shafts as Permanent Ground Support -- Innovative High Durability Non-Steel Fiber Reinforced Segments -- Jacked Pre-Cast Caisson Shaft Construction Methodologies -- Session 2: TBM Technology -- EPBM Proactive Tracking and Progressive Optimization -- Project Clear: Efficient Hard Rock Tunneling Below St. Louis, Missouri -- Small Diameter Tunnelling: Limitations and Machine Concepts -- Using Predictive Modeling for TBM Process Control

TBM Hardening and Anti-Wear Implements Against Ground Abrasion -- Session 3: Innovative Solutions -- TBMs for Norwegian Small Hydropower Projects -- Long-Distance Annulus Backfilling of Rehabilitated Sewer Tunnel with Limited Grouting Access -- Boring a Tunnel Under a Train Station Using Ground Freezing-Line 14-T03-Extension of a Subway Line in Paris (France) -- An Introduction to Low-Density Cellular Concrete and Advanced Engineered Foam Technology -- Deep Shaft Sinking Through Limestone, Mudstone, and Halite

Altered Tunnel Start Due to Significant Surface Erosion in the Portal Area-A Creative Approach at Tunnel Herrschaftsbuck in Germany -- Deep Shaft Sinking Through Limestone, Mudstone, and Halite -- An Introduction to Low-Density Cellular Concrete and Advanced Engineered Foam Technology -- Boring a Tunnel Under a Train Station Using Ground Freezing-Line 14-T03-Extension of a Subway Line in Paris (France) -- Long-Distance Annulus Backfilling of Rehabilitated Sewer Tunnel with Limited Grouting Access -- TBMs for Norwegian Small Hydropower Projects -- Session 4: Design Innovations

Unreinforced Slurry Walls as Temporary Support of Excavation for Circular Shafts -- How Uncertain Are the Geological-Geotechnical Soil Transition Boundaries? -- Designing and Implementing Risk Mitigation for Existing Critical Utilities by Means of Construction Sequencing -- Reaching New Depths: Innovations in Technological Site Characterization Tools for Integrated Tunnel Design and Construction -- Advancements in Durable Segments for Utility Tunnels -- Session 5: Digital Technology -- EPB Shield TBM Automation Using the Autonomous Vehicle Framework

Innovative Tools to Control Tunnel Project Risks -- BIM Implementation in the Design of Underground Structures for the Réseau Express Métropolitain (REM) Project in Canada -- Settlement Monitoring During Tunneling Using Continuous InSAR and Trend Detection Analysis -- TRACK 2: PLANNING -- Session 1: Tunnel Diversity -- Recent Experience with Bond Market Investors on P3 Project with Tunnel Works -- Aged Tunnel Rehabilitation Options: Using Geotechnical Techniques to Assess Site Conditions and Provide Modeling Inputs: A Case Study from Detroit

Dugway South CSO Relief and Conveyance Sewer-Owner Flexibility and Contractor Experience Lead to Project Success

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