采煤沉陷对径流影响的预测评价方法研究

A STUDY ON THE METHOD OF THE PREDICTION AND EVALUATION OF THE IMPACT ON RUNOFF CAUSED BY COAL MINING SUBSIDENCE

矿区范围大是煤矿建设项目特点之一,因而在矿区范围内常会涉及到水体、水系或与之相关的各类环境保护目标。近些年来随着国家对环境保护工作的重视程度增加,煤炭开发和环境的矛盾日益突出,当涉及与径流相关的重要环境敏感目标时,煤炭开采对径流的影响结论将成为煤矿建设环境可行的重要依据之一。本次研究以采煤沉陷对国家级遗鸥自然保护区的影响分析为例,确定了采煤沉陷对径流预测的评价方法。结果表明,该方法可定量判断采煤沉陷对保护区所属流域和水系的影响,这为判断采煤环境影响和采取保护措施提供了支持。

Large area has been one of the characters of the coal mining project, which means that there often be river system or related environmental protection targets in the mining area. With the increasingly attention on the environmental protection, the confliction between the coal mining and environment is serious today. If there exist some sensitive environmental targets, the conclusion of the impact on runoff caused by the coal mining would be an important foundation which decides feasibility of the coal mining project. This study on the evaluation of the effect caused by coal mining subsidence to the runoff take the nature reserve of national Larus Relictus for example, established a method for analysis. The results indicate that the method could analyze the effect on the basin caused by coal mining in a Quantitative way, which provides a support for evaluating the environmental effects on runoff caused by coal mining and proposing the protection plan.