Tunneling in Soft Ground, Ground Conditioning and Modification Techniques

This book presents new research studies dealing with the attempts made by the scientists and practitioners to address some key engineering issues in tunneling engineering, geotechnical engineering, and municipal sustainability issues that are becoming quite relevant in today's world. With high urbanization rates, advancement in technologies, difficulties in construction of subway tunnel in soft marine clay deposits, and severe ground subsidence due to excessive groundwater withdrawal pose many challenges in their management. Papers were selected from the 5th GeoChina International Conference 2018 Civil Infrastructures Confronting Severe Weathers and Climate Changes: From Failure to Sustainability, held on July 23 to 25, 2018 in HangZhou, China.

Presents the advancements in the field of tunnel bore characterization and the associated properties assessment of tunneling spoils Sheds the lights on deformation law and stabilization methods of expansive soils Offers insights into the design of offshore structures and soft ground tunnels Discusses various geoenvironmental issues that are drawing every one's great attention

Inhalt
1.Predicting Subgrade Resilient Modulus for use in the MEPDG using Common Soil Indices.- 2.Evaluating the Application of Microbial Induced Calcite Precipitation Technique in Stabilizing Expansive Soils.- 3.Transverse Cracks Cause Analysis on Rock-anchored Beam During the Construction Process of Hydropower Station Underground Powerhouse.- 4.Performance Evaluation of Jacking Force Models for Tunnel Bore Conditions Characterisation.- 5.Deformation law of surrounding rock of expansive soil tunnel based on dry-wet cycle model test.- 6.Improved Approach for Determining Pile Length of Group Pile Using Complex Continuous Wavelet Transform.- 7.Application of Displacement Direction Angle Theory on Excavation Methods Conversion Opportunity of Zi-Zhi Tunnel.- 8.The effects of local voids on the cracking performance of an existing tunnel lining.- 9.Integration of fault tree and Bayesian network for falling risk of the bridge project - Precasting Prestressing Segmental Construction Method.- 10.Experimental investigation for determining explosive consumption and researching effect of rock fragmentation by blasting during shield tunneling.- 11.A web-based ground settlement prediction system for subway construction.- 12.Implementation of Highly Flowable Strain Hardening Fiber Reinforced Concrete (HF-SHFRC) to NEW RC Bridge Columns for Sustainability Development.- 13.Design and Numerical Analysis of an Externally Heated Geothermal Bridge Deck.- 14.Influence of the pipe canopy filling in shallow tunnels.- 15.Analysis of Offshore Rock Socketed Monopile Foundations Considering Stiffness Degradation.- 16.Seismic Re-qualification of Caisson Supported Dhansiri River Bridge.- 17.Numerical investigation on muck pressures during EPB shield tunneling with varying discharge ratio based on coupled PFC3D/FLAC3D method.- 18.Physical and Mechanical Characterization of Himalayan Dolomite.- 19.Mechanical Assessment of Crushed Rocks Derived from Tunnelling Operations.- 20.Coupled Eulerian-Lagrangian modeling to study the long-runout landslide: A case study.- 21.Optimizing Arterial Signal with Delay and Queue.