Abstract:The recovery of residual coal amount in water flood area with thick coal seam is an important subject faced by old coal mine. Residual coal remining security technology of resource depletion has a role in the regeneration and can bring considerable economic benefit and social benefit. In this paper, compound mining method of residual coal amount in water flood area has been studied in detail. According to conditions of storage and the residual quantity of coal goaf water, a series of methods and countermeasures have been put forward. Through reasonable drainage of goaf water, optimization of roadway layout and mining process design, the stagnant coal amount which has already abandoned has been fully recovered. It will provide valuable advices for the recovery of residual coal under similar conditions.
