|
|
|
| STUDY ON TECHNIQUE AND TEST OF SURROUNDING ROCK CONTROL OF DEEP SHAFT COAL ROADWAY |
|
|
|
|
Abstract The deformation feature of deep shaft coal roadway is analyzed，and the reason for many kinds of support failures is studied. The coupling balance supporting principle of inner and outer structures is put forward for these roadways. For surrounding rock control of deep shaft coal roadway，it is necessary for the high strength supporting structure to take part in the redistribution of stresses in surrounding rock after excavation，so as to decrease the strength damage of coal. Thus the stable bearing structure can be formed rapidly around the roadway，and the area of plastic fluid zone of surrounding rock can be reduced. The industrial test shows that the supporting principle is correct.
|
|
Received: 20 September 2005
|
|
|
|
| [1] |
LI Botao1, 2, 3, TAN Yuxuan1, LIN Haifei4, 5*, WEI Jianping1, 2, 3, ZHANG Hongtu1, 2, 3, LI Shugang4, 5, WEI Zongyong4, 5, WANG Pei4, LUO Rongwei4, LIU Yanwei1, 2, 3. Mechanical properties and mesoscopic damage evolution of coal under liquid-nitrogen freezing at different initial temperatures[J]. , 2026, 45(6): 1757-1772. |
|
|
|
|
