榆树湾煤矿保水采煤技术方案研究.pdfVIP

Subject : Research on the Technical Scheme of Coal Mining under Water-containing Condition in YuShuwan Coal Mine Specialty : Geological Engineering Name : Wang Yue （Signature） Instructor : Xia Yu-cheng （Signature） ABSTRACT Jurassic coal field in Northern Shaanxi province is a region which is being developed on a large scale. But the surface is Mu Us Sandy Land with fragile ecological environment, the Salawusu aquifer and Jurassic coal resources are widely distributed below it. All of them constitute the organic connection system of ecological enviroment, water resources and coal resources in the vertical space. At present the preliminary mining has led to serious damage for strata structures and regional ecological environment, especially for hydrogeological conditions. In view of the disaster phenomena of water-sand inrush and serious water shortage situation in Northern Shanxi, technical scheme research of coal mining under water-containing condition must be carried out systematically. Taking YuShuwan coal mine in Yushen mining area as the research object, starting from engineering geological and hydrogeological data, in order to realize water resources, ecological environment protection and coal resources development, using the key strata theory, material mechanics theory and deformation analysis method, this paper studies the law of overburden movement and damage caused by coal mining, predicts the height of water flowing fractured zone. Through comparative