Abstract: For comprehensive utilization of the coal gangue from different locations, coal gangues were calcined at temperatures of 800°C, 900°C, and 1,000°C for 2 h, respectively, and then blended in cement with a replacement ...

Abstract: Grouting control is one of the key measures to reduce segment floating, to ensure safety and efficiency during shield tunnel construction. In this study, optimization of backfill synchronous grouting material for shield ...