| Underground coal mining projects contribute to the loss of water and soil which has seriously destroyed the local ecological environment. The types of water and soil loss in coal resources exploitation are complex and diverse. Especially, there are controversies about how to forecast man-made loss area and additional loss quantity when people draw up water and soil conservation project. This thesis is to elaborate the key issues related to water and soil loss in XiQu coal mine and study the term and law of water and soil loss. Combining with prospective contents and methods of other water and soil conservation projects, it establishes the equation of forecasting gangue loss and subsidence area loss in underground coal mining projects.Directing at feature of loss, the thesis attempts to forecast coal gangue take up area, subsidence area, additional quantity of loss, and the first forecast contamination owing to water that mineral pits eject and coal gangue leaches. This thesis offers scientific gist for reasonable arrangement of the water and soil conservation measures. At the same time, it makes measurements to supervise and execute the law in water and soil conservation. On the one hand, it offers the better scientific prospective method through this research, prospective contents, prospective process, on the other hand, it offers reference for water and soil loss forecast in other developing and construction projects. |