Influence of strength inhomogeneity on transboundary expansion characteristics of hydraulically fractured fractures in coal seams
Dongbin Huang, Xiangtao Kang, Zuhao Xu, Chao Ren, Yongyan Long, Ping Cao · 2024
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Description
Dongbin Huang and co-authors report research from two thousand twenty-four on breaking coal seams with pressurized water. The method, called hydraulic fracturing, opens cracks that let gas escape and lower the risk of violent outbursts in mines. Real seams are uneven in strength, and that unevenness may steer the cracks.
The team combined lab tests on coal blocks with computer models. When a crack moved from weak coal into strong coal, pressure built up, cracks widened, and the coal shifted more. Once across the border, the crack narrowed in the stronger zone. Moving from strong to weak coal, the crack jumped across at once and pressure dropped. The two methods agreed, which supports the findings.
Catalog record
| CREATOR | Dongbin Huang, Xiangtao Kang, Zuhao Xu, Chao Ren, Yongyan Long, Ping Cao |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 49 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |