介绍了某铁矿大面积采空区现状，针对大面积隐患空区的存在，采用顶板监测、地压监测、地质雷达监测等先进技术相结合的方式对采空区进行全方位监测，成功地掌握了空区围岩地压活动规律，有针对性的制定破坏性危害预防措施，提前预测空区危害的发生，保证了深部规模化采矿的安全，对国内外类似矿山开采的安全、高效开采提供了重要借鉴意义。%The paper introduces a large area cavity status .For a large area of the existence of hidden cavity ,we combined the advanced the roof monitoring technology ,geostatic pressure monitoring technology , geological radar monitoring technology to monitor all‐round the cavity .Then we successfully mastered the cavity surrounding rock pressure activity law .So we can be targeted to develop the destructive damage prevention measures ,to predict cavity hazards ,to ensure safety in deep scale mining .The technology can provide an important reference on the domestic and foreign similar mining safety and high efficient mining .
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