Seepage and diffusion behavior of fly-ash composite gel for sealing air leakage in goafs
Jiangxi University of Science and Technology · Sinopec (China) · +1 more institution
Abstract
Coal spontaneous combustion in the goaf is among the common hazards encountered in coal mining production. Fly ash composite gel material has been found to effectively seal air leakage channels, thereby reducing the risk of coal self-ignition. This work explores the seepage and diffusion behavior of the gel within the goaf. First, a fly ash composite gel is prepared using fly ash, waste glass, and sodium bicarbonate, and the physical parameters of the material are tested using a rheometer. A three-dimensional multiphase flow numerical model of the goaf is then constructed based on computational fluid dynamics methods to explore the permeation behavior and diffusion pattern of the fly ash composite gel in…
Citation impact
- FWCI
- 45.07
- Percentile
- 99%
- References
- 38
Authors
6Topics & keywords
- Fly ash
- Leakage (economics)
- Composite number
- Porosity
- Diffusion
- Coal
- Permeation
- Permeability (electromagnetism)