Diffusion mechanism of fracture grouting in rock mass with flowing water

Wang, Fuyu; Zhang, Jiafan; Qin, Xiangrui; Yuan, Chao; Meng, Xiangzhen; Zhang, Huimei

doi:10.1016/j.aej.2024.06.065

Alexandria Engineering Journal

2024

DOI: 10.1016/j.aej.2024.06.065

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Diffusion mechanism of fracture grouting in rock mass with flowing water

Fuyu Wang,

Jiafan Zhang,

Xiangrui Qin

et al.

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Cited by 2 publications

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Mechanical Tests and Theoretical Research on Fracture Grouting Reinforcement of Soft and Weak Coal Rock

Wang,

Zhang,

Gong

et al. 2024

Arab J Sci Eng

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Mechanical Tests and Theoretical Research on Fracture Grouting Reinforcement of Soft and Weak Coal Rock

Wang,

Zhang,

Gong

et al. 2024

Arab J Sci Eng

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Research on the Rheological Properties and Diffusion Law of Coal-Based Solid Waste Geopolymer Grouting Material

Wang,

Zhou,

Bai

et al. 2024

Materials

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The rheological properties and diffusion law of coal-based solid waste geopolymer grouting material (CGGM) slurry were investigated by rheological property test and diffusion theory model derivation. Based on the power-law fluid constitutive equation, a theoretical model of slurry diffusion in an inclined fissure aquifer was established, and the effect of slurry grouting time on the slurry diffusion distance under different fissure widths, fissure inclination angles, and grouting pressures were analyzed. The results show that when coal gangue:cement:fly ash = 5:4:1, sodium silicate modulus 2.0, sodium silicate content is 10%, CGGM slurry’s bleeding rate of 1%, the liquidity of 227 mm, the initial and final setting time is 412 min and 825 min, respectively, to meet the requirements of the grouting project. CGGM slurry is a typical viscosity time-varying power-law type fluid, and the slurry diffusion distance is positively correlated with the grouting pressure, fissure width, fissure inclination angle, and negatively correlated with the rheological index. The established theoretical model can provide a reference for the parameter design of CGGM slurry in grouting construction.

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Diffusion mechanism of fracture grouting in rock mass with flowing water

Cited by 2 publications

References 19 publications

Mechanical Tests and Theoretical Research on Fracture Grouting Reinforcement of Soft and Weak Coal Rock

Mechanical Tests and Theoretical Research on Fracture Grouting Reinforcement of Soft and Weak Coal Rock

Research on the Rheological Properties and Diffusion Law of Coal-Based Solid Waste Geopolymer Grouting Material

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