| Autor: |
WANG Jie, REN Jie |
| Jazyk: |
čínština |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Meikuang Anquan, Vol 51, Iss 1, Pp 94-98 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
1003-496X |
| DOI: |
10.13347/j.cnki.mkaq.2020.01.021 |
| Popis: |
In view of the problem that the surrounding rock is disturbed severely and the pressure relief deformation is difficult to control in the support technology of pressure relief hole of deep high-stress roadway, this paper takes Beijing Changgouyu Mine as the background and analyzes the characteristics of roadway pressure and the mechanism of roadway large deformation, and proposes a method of rigid and flexible coupling support for high stress roadway by theoretical analysis and numerical simulation methods. The conventional support scheme and the filling type pressure-relief rigid-flexible coupling support scheme are compared and analyzed. The results show that the filling type pressure-relief coupling support scheme is better than the conventional support scheme in the surrounding rock plastic zone. The deformation amount has obvious improvement, and the deformation of the surrounding rock of the roadway is basically controllable. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
