搜索结果: 1-3 共查到“安全科学技术 Goaf”相关记录3条 . 查询时间(0.078 秒)
Study on mechanics and domino effect of large-scale goaf cave-in
Goaf Stability Domino effect Voronoi polygon
2012/3/28
A large area of continuous solid shallow-buried goaf group created by open-stope method, under the influence of space–time effects exerted by slow creep of the pillar–roof system, will wholly collapse...
Research and application of drainage parameters for gas accumulation zone in overlying strata of goaf area
Overlying stratus in goaf area Annular fissure circle Gas drainage Parameters
2012/3/28
While coal seam is being mined, an annular fissure circle with gas accumulation will be formed in the fissure zone as a result of desorption, dissipation and permeation of gas in the goaf area and ove...
Experimental study on oxygen consumption rate of residual coal in goaf
Goaf Coal Spontaneous combustion Heating and oxidizing Oxygen consumption Granularity
2012/3/28
In order to research the actual oxygen consumption rate of residual coal in goaf, the heating and oxidizing experiment was conducted respectively on five types of single particle size of coal samples ...