The geology guarantee system of retaining sand-proof pillarunder middling water- abundance aquifer in Baishan coal mine

This article summarizes a geology guarantees system according to 10 years practice in mining coal and retaining sand-proof pillar under middling water-abundance aquifer, analyzes qualitatively and quantitative all the components of the system,and points out that the geology guarantee system is a precondition and base guarantee in optimizing the designing of coal, ensuring mining safety and efficiency. It provided with enormous economic performance to Baishan coal mine.