Ocean University of China

China Railway 14Th Bureau Group Shield Engineering Coporation Limited

China Railway 14Th Bureau Group Corporation Limited

Yuhong Diao

Tao Liu

Jian Chen

Rui Fan

Hao Kong

Mingshuai Xi

Meng Bu

Fei Sha

Shutong Yang

Zhe Zhang

Jianyong Zhang

Yixiang Li

Qiguang Duan

Qingsheng Meng

Jicheng Shu

Gongbiao Yang

Naiyin Yang

Lanying Zhang

Peng Chen

A synchronous single-liquid grouting slurry, its technology and application for large diameter shield engineering under water-rich, high-pressure and weak soil strata conditions, comprising raw materials: 1050-1200 parts of gold tailing, 420-480 parts of silicate cement clinker, 220-240 parts of fly ash, 45-120 parts of waste clay brick, 65-95 parts of slag, 25-45 parts of limestone tailing, 70-80 parts of steel slag, 30-45 parts of silica fume, 15-22 parts of desulfurized gypsum, and 9-15 parts of quick-setting and early-strength composite additive. The invention controls the d, dand dof the material particles as 35-40, 42-48 and 50-55 μm, respectively. Gold tailing with the particle size of 120-600 μm being used as the fine aggregate, their volume fractions are 40-60%. The slurry production technique, comprising crushing-sieving-superfine ball milling-homogenization-particle size classification-variable speed mixing being developed. The shield tail eight-point grouting technique is being developed for filling.

Synchronous single-liquid grouting slurry, its technology and application for large diameter shield engineering under water-rich, high-pressure and weak soil strata conditions

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Shandong, China

Yuhong Diao