Mechanism and control strategies of asymmetric floor heave under dynamic pressure in roof-cutting gob-side entry retaining: a case study
Haohao Wang, Kunyu Liu, Zhujun Shao, Dongshan Yang, Shukun Zhang, Shuai Wang, Zhibiao Guo · 2026
Read Mechanism and control strategies of asymmetric floor heave under dynamic pressure in roof-cutting gob-side entry retaining: a case study by Haohao Wang, Kunyu Liu, Zhujun Shao, Dongshan Yang, Shukun Zhang, Shuai Wang, Zhibiao Guo (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/PMC13562505.txt.
Description
Haohao Wang and six colleagues tackle a deep coal mine problem: the floor of a kept roadway bulging upward unevenly under shifting pressure. The roadway runs beside a mined-out area, and cutting the roof to relieve stress makes the load lopsided. Floor heave then warps the passage and raises upkeep costs. The 2026 study combines a scaled physical model, a mathematical failure model built on earth-pressure theory, and measurements underground at the Zhaogu No. 1 Mine.
Model tests traced how floor strain spread from shallow layers downward after roof cutting. The team proposed a pressure-balancing support scheme: pre-split the roof, fit yielding supports that give under load in roof and walls, and brace the floor with an inverted beam. In the field, the scheme cut floor heave by 46.1 percent against an uncontrolled section. Theory, model, and mine data agreed.
Catalog record
| CREATOR | Haohao Wang, Kunyu Liu, Zhujun Shao, Dongshan Yang, Shukun Zhang, Shuai Wang, Zhibiao Guo |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 71225 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |