Structural model of hard overburden shell in thick coal seam and its application
Xing Fu, Lingjun Zeng, Hai Rong, Hongwei Zhang, Tianhao Liu, Jiankang Song · 2025
Read Structural model of hard overburden shell in thick coal seam and its application by Xing Fu, Lingjun Zeng, Hai Rong, Hongwei Zhang, Tianhao Liu, Jiankang Song (2025) 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-12816131.txt.
Description
Deep coal seams under hard rock roofs can store huge force, and a sudden roof fall can slam a work face. Xing Fu and co-authors model that roof in a 2025 study of a mine in the Datong area of China. The seam there is extra thick, and the roof rock is hard and old.
They treat the hard roof as a curved shell and work out the span it can bridge before it breaks. Two rock layers got spans of about sixty five and two hundred and twenty three steps in length units of metres. Those spans matched the press signs seen in the real face well. The model tells why the face feels both small and large press beats. It gives the mine a base for roof control.
Catalog record
| CREATOR | Xing Fu, Lingjun Zeng, Hai Rong, Hongwei Zhang, Tianhao Liu, Jiankang Song |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 43 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |