Failure mechanism and control technology for the surrounding rock of retreat roadways beneath remnant coal pillars in close-distance coal seams
Yang Wang, Zhiqiang Zhao, Hongtao Liu, Jinwen Hao, Xiaoxiang Wei · 2026
Read Failure mechanism and control technology for the surrounding rock of retreat roadways beneath remnant coal pillars in close-distance coal seams by Yang Wang, Zhiqiang Zhao, Hongtao Liu, Jinwen Hao, Xiaoxiang Wei (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13377062.txt.
Description
Yang Wang and co-authors present a 2026 study on why rock around a coal mine roadway fails, and how to hold it. The case is a return airway in a Chinese mine, sitting below a pillar of coal left behind in a seam above. That pillar presses down unevenly, which can crack and warp the roadway below.
The team joined theory, computer models, borehole views, and field tests. They traced how stress moves from the pillar through the floor into the roadway rock. Placing the roadway offset outward or right under the pillar worked best. Wide pillars and thick layers between seams weakened the harm. A support plan based on the findings was tested in the mine.
Catalog record
| CREATOR | Yang Wang, Zhiqiang Zhao, Hongtao Liu, Jinwen Hao, Xiaoxiang Wei |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 82 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |