【摘要】 孤岛采空区是矿井开采过程中出现的新现象,由于开采设计不合理,在管理不善的情况下,容易造成采空区严重漏风,进而导致孤岛采空区煤炭自燃的发生。通过漏风测定实验对孤岛采空区的漏风量和漏风通道进行了研究,同时为了确定采空区自燃发火危险地点,对孤岛采空区特殊通风阶段的漏风状态进行了模拟研究。通过数值模拟找到该阶段的漏风规律,从而进行有效的漏风控制措施。更多还原

【Abstract】 Isolated island goaf is a new phenomenon in the process of mining.Due to the unreasonable design of exploitation and the poor management,the air leakage in the goaf is often serious,which would furtherly lead to the spontaneous combustion of coal,isolated island goaf have been studied through experimental determination of air leakage which becoming from special circumstances of coal mining.and in order for determining the risk of spontaneous combustion in Isolated island goaf,the state of air leakage in certain phases in the isolated island goaf is simulated in the article.Based on the FLUENT(a kind of numerical analysis software),And through it,the law of the air leakage is found and the measures to control the air leakage are carried out.更多还原