干旱区生态环境知识资源中心

By investigating and surveying the damage of coal mining subsidence, geological conditions of mining and the environmental conditions of the mining areas, and on the basis of the characters of coal seam storage conditions, geology and landform, environmental conditions, methods of mining and the damage of coal mining subsidence, the Jurassic coalfield in north of Shaanxi is divided into two class-I sections: desert section and loess erosion section, in which four class-II sections are divided, and these four class-II sections are further divided into nine class-III sections by considering geology, mining, landform, environment and types of mining damage. Basis on which sections are divided and characters of mining damage have been put forward. The basic methods and model of controlling the damage of coal mining subsidence each section and the biological restoring and reconstruction model of the cave-in have been advanced to provide basis for controlling coal mining subsidence in this area.