基于AHP与ArcGIS的峡谷区 尾矿库选址方法探讨

ArcGIS的强大空间分析功能为峡谷区尾矿库的选址提供了很好的技术支撑。尾矿库地址的选择涉及到矿山经济效益、社会影响、环境污染等问题，是一个受多因素条件影响的过程，层次分析法（AHP）为这种多因素影响的决策提供了很好的分析技术手段。以个旧锡矿某矿山为例，通过分析尾矿库选址的影响因素，从中提取与空间地理位置相关的信息，利用层次分析法计算每个影响因子的权重，在GIS缓冲区分析、叠加分析等功能模块下初步分析得到研究区的候选尾矿库，然后结合容积计算确定最佳尾矿库。实例研究表明，该方法能提高尾矿库选址的科学性，可操作性强、易于实现，值得推广应用。

Research on Site Selection for Tailing Pond in Canyon Area Based on APH and ArcGIS

The powerful spatial analysis function of ArcGIS provides an essential technical support for site selection of tailing pond in mine，which is a decision-making process under the influence of multi-conditional factors related to mining economic benefits，social impacts and environmental pollution. Analytic hierarchy process (APH) can provide an effective analysis method for decision making. Taking a mine of Gejiu Tin deposit for example，the paper analyzes the key factors affecting the selection of tailing site，extracts the relevant information of spatial location，and applies the AHP technique to weigh the importance of each factor. The functional modules in GIS such as buffer analysis，and overlay analysis，are practiced to acquire the candidate tailing pond in the paper. Thus，the best site for tailing pond is determined through combining with the volume calculation. The case shows that the technique can improve the scientific and visualization standard of site selecting with applicable and simple implementation. Thus，it is worth applying widely.