Research into the security monitoring and prevention technologies of a iron mine goaf

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.