深部开采矿井自然风压演化规律研究

Research on the Evolution Law of Natural Wind Pressure in Deep Part Mining Mines

自然风压是影响矿井通风系统稳定性的主要因素,针对唐口煤矿开采深度日益增大、矿井通风系统日趋复杂的特点,探究唐口煤矿南翼井区自然风压的变化对唐口煤矿南翼井区矿井通风系统的稳定性具有重要意义。为研究唐口煤矿南翼井区的自然风压情况,采用现场实测与理论分析的方式对其自然风压进行测定并分析其变化规律。结果表明,唐口煤矿的自然风压在每个季节都呈现中午最低、早晚最高的规律,且春、夏、冬季的自然风压为正,夏季的自然风压为负。温度和相对湿度对自然风压都有一定的影响,但温度与自然风压的变化规律相反,相对湿度与自然风压的变化规律基本一致。

Natural wind pressure is the main influencing factor affecting the stability of mine ventilation system.Aiming at the increasing depth of mining in Tangkou Coal Mine and the increasingly complex characteristic of the mine ventilation system,exploring the changes in natural wind pressure in the southern wing well area of Tangkou Coal Mine is of great significance for the stability of the mine ventilation system in the southern wing well area of Tangkou Coal Mine.In order to study the natural wind pressure situation in the southern wing well area of Tangkou Coal Mine,on-site measurement and theoretical analysis are used to measure its natural wind pressure and analyze its variation laws.The results show that the natural wind pressure of Tangkou Coal Mine shows a law of lowest at noon and highest in the morning and evening in each season,and the natural wind pressure in spring,summer,and winter is positive,while the natural wind pressure in summer is negative.Both temperature and relative humidity have a certain impact on natural wind pressure,but the variation law of temperature and natural wind pressure is opposite,while the variation law of relative humidity and natural wind pressure is basically consistent.