浅析水源保护区内公路工程地下水环境评价体系

Analysis on Groundwater Environment Evaluation System of Highway Engineering in Water Source Protection Area

摘要: 由于施工过程中会对环境造成污染，针对公路工程施工过程中，涉及很多水源保护区或自然保护区的问题，结合国内外研究现状发现：目前对水源地保护大多是以水库为基础，对于高环保水保要求的自然保护区少之又少。结合青海加西公路项目，建立了水源保护区地下水水质评价体系。运用单因子指数法、灰色加权关联度法和熵权–可拓物元法，对现场地下水质进行评价，综合分析了熵权–可拓物元法较单因子指数法和灰色加权关联度法，突出了其整体性、精度高的优点。

Abstract: As the construction process will cause pollution to the environment, many water source protection areas or nature reserves are involved in the construction process of the highway project. Combined with the research status at home and abroad, it is found that most of the protection of water source areas is based on reservoirs, and there are few nature reserves with high environmental protection and water conservation requirements. Based on the Jiaxi highway project in Qinghai Province, the groundwater quality evaluation system of water source protection area is established. The single factor index method, grey weighted correlation degree method and entropy weight extension matter element method are used to evaluate the on-site groundwater quality. It is comprehensively analyzed that the entropy weight extension matter element method has the advantages of integrity and high accuracy compared with the single factor index method and grey weighted correlation degree method.