深井自然风压及采空区流场动态演化规律研究  

Research on the Dynamic Evolution Law of Natural Wind Pressure in Deep Wells and Flow Field in Goaf

作　　者：高常华 孙帅 姜明栋 Gao Changhua;Sun Shuai;Jiang Mingdong(Shandong Xinhe Mining Industry Co.,Ltd.,Shandong Jining 272400)

机构地区：[1]山东新河矿业有限公司,山东济宁272400

出　　处：《山东煤炭科技》2023年第8期122-125,共4页Shandong Coal Science and Technology

摘　　要：深部矿井的通风稳定性影响生产安全,随季节而变化的自然风压对其影响更明显。为研究深部煤层自然风压对采空区流场的影响,通过现场实测得到矿区冬季采空区内部流场规律和自然风压变化规律,利用数值模拟方法,验证了自然风压是影响采空区内部流场演化规律的重要因素,并根据煤矿实际情况及研究结果,制定了冬季工作面通风方式和其他措施。The ventilation stability of deep mines affects production safety,and the natural wind pressure that varies with the season has a more significant impact.To study the impact of natural wind pressure in deep coal seams on the flow field in goaf,the internal flow field law and natural wind pressure change law in winter goaf of the mining area are obtained through on-site measurements.Numerical simulation methods are used to verify that natural wind pressure is an important factor affecting the evolution law of the internal flow field in goaf,and according to the actual situation and research results of the coal mine,ventilation methods and other measures for the winter working face are formulated.

关 键 词：深部矿井 自然风压 采空区 数值模拟 

分 类 号：TD724[矿业工程—矿井通风与安全]