Research and engineering practice on space characteristics of gangue slurry filling
Wenzhe Gu, Baogui Yang, Hao Pan, Tianqi Song · 2023
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Description
Wenzhe Gu and co-authors study, in a 2023 paper, how to fill mined-out voids with gangue slurry, a mix made from coal mine waste rock. Filling works only if the slurry reaches the right hollow spaces. The team blended theory, lab simulation, and field trials to map how the space above a collapsed mine zone forms and where its gaps lie.
They derived a way to compute the void share in the caved rock and built a model of where fillable space sits. Lab results matched the model: pore space falls off in a smooth curve along two directions. Field grouting trials proved the fill works in practice. Slurry moves in three linked stages, first flowing in, then rising, then spreading sideways. Site work targeted the zones the model flagged as best.
Catalog record
| CREATOR | Wenzhe Gu, Baogui Yang, Hao Pan, Tianqi Song |
|---|---|
| YEAR | 2023 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 82 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |