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研究采场空气的运动,是合理调整采场通风抑制残煤自燃防止瓦斯在生产巷道聚集,保证安全生产的基础。对采场运动状况过去所作的大量研究,几乎都不考虑采场中空气是在工作面和采空区、冒落岩石空隙相连的通道中这样不同性质的运动。全部视为理想流体的流动,显然与实际情况相差很大。只对采空区运用渗流理论进行研究,而不考虑采场是由工作面与采空区组成的整体。这样,难以决定工作面与采空区的交界条件和给出进入微分方程中的参数(如渗透系数)。因而,也难得出符合实际的结果。本文根据任何的空气运动都要满足质量守恒定理,将工作面附近空间空气流动处理
Studying the movement of stope air is the basis for rational adjustment of stope ventilation to prevent spontaneous combustion of residual coal and prevent gas from gathering in production lanes to ensure safe production. The extensive research done on the stope movements in the past almost does not take into account the different nature of the movement in the stope where the air is in the working face, the goaf, and the channel connecting the gaps in the falling rock. All are considered to be ideal fluid flows, which are obviously very different from the actual situation. The study of seepage theory is only applied to the goaf, and the consideration of the stope is not the whole of the working face and the goaf. In this way, it is difficult to determine the boundary conditions between the working face and the goaf and to give parameters such as the permeability coefficient into the differential equation. Therefore, it is also difficult to come up with practical results. According to any air movement, this paper must meet the principle of conservation of quality and deal with the air flow in the space near the work surface.