有综采支架时，工作面向采空区的漏风量过小，致使采空区的速度很小，自燃带靠近工作面。
When working face has mechanized support, air leakage quantity is small, velocity is low in goaf, and spontaneous combustion zone is more approach to working face.
摘要用氧气体积分数法划分低瓦斯采空区自燃“三带”是目前在工程实践中应用最为广泛，也是最有效的方法。
Abstract: the oxygen concentration method is the most effective and most commonly used method in dividing spontaneous combustion "three zone" in low-gas goaf in engineering practice at present.
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