New Solutions for Challenges in Applications of New Materials and Geotechnical Issues Proceedings of 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

1.Modified Duncan-Chang model and mechanics parameter determination based on triaxial consolidated drained tests of Guiyang red clay in China.- 2.Hydro-thermal properties of the unsaturated soil.- 3.Gas bubble nucleation and migration in soils  - Pore-network model simulation.- 4.A Coupled Chemo-mechanical Analysis of the Dissolution-dominated Sinkholes.- 5.Simplified Methodology for Stiffness Estimation of Double D Shaped Caisson Foundations.- 6.Modelling of hydro-mechanical coupling in land uplift due to groundwater recharge.- 7.Numerical Modeling of Reinforced Stone Columns and Bamboo Grid Mattress for Supporting Causeway Embankment on Soft Soil Bed.- 8.A Three Dimensional Discrete Constitutive Model for Over Coarse Grained Soil.- 9.Optimization charge scheme for multi-row ring blasting design adopting equilateral triangle layout based on modified Harries' mathematical model from a fragmentation perspective: a case study.- 10.The Impact of Geocell Element Dimensions on Circular Behavior.- 11.Soil Reinforcement and Slope Stabilization Using Natural Jute Fibres.- 12.Utilisation of Geotextile fabric and Permeable Concrete to Prevent Coastal Erosion.- 13.Assessment of Mass Movements and Critical Phreatic Levels in Soil Slopes.- 14.Study on surface deformation caused by comprehensive mining in a coal mine in Northwest China.- 15.Settlement of Composite Foundation with Sparse PTC (pre-stressed tubular concrete) Capped-Piles under Embankment.- 16.Ground motion amplification induced by shallow circular tunnel in soft soil.- 17.A Case Study of Roadway Embankment Construction over Existing Sewers in Montreal, Canada.