搜索结果: 1-3 共查到“安全科学技术 SURROUNDING”相关记录3条 . 查询时间(0.062 秒)
Stability and deformation of surrounding rock in pillarless gob-side entry retaining
Gob-side entry retaining Surrounding rock Structural stability condition Deformation impact factor
2012/3/27
We analyzed the stability of the retained gob-side entry in four different Chinese coal mining sites and evaluated the influencing factors of roadway deformation such as mining depth, support strength...
The caving and sliding control of surrounding rocks on large coal roadways affected by abutment pressure
Cable truss system Numerical simulation Coal roadway Abutment pressure
2012/3/28
For the caving and sliding control of roadways with large cross-section, thick mudstone roof and abutment pressure influence, the cable truss system is proposed and its support mechanism is thoroughly...
Steelworkers Ramp up Campaign Surrounding North American Goodyear Strike(图)
Steelworkers Strike safety
2006/12/4