何魁核电站厂址水文地质条件研究.docVIP

东华理工大学毕业论文 摘要 摘 要 水文地质条件研究是核电站选址评价的一项重要内容。本文以江西何魁核电站选址工程为研究对象，查明厂址水文地质条件，为核电站的建立提供水文地质方面的资料。通过分析了核电站厂址自然地理概况、地形地貌、地层岩性、地质构造、厂址区域水文地质特征。进而分析厂址水文地质条件，厂址区可分为两个水文地质单元和四个含水岩组，厂址地下水形成了一个自成体系的地下水补给—径流—排泄系统，地下水PH值在5.99~6.98之间，水化学类型以HCO3-Ca型为主，地下水属中性水。第四系松散孔隙水渗透系数为1.08×10-2cm/s，为强透水，全风化渗透系数为2.01×10-3～2.89×10-3cm/s，属中透水，强风化岩体渗透系数为3.945×10-4~5.72×10-3cm/s，为中等透水，中等风化与微风化层渗透系数为7.00×10-6～1.17×10-5 cm/s，属微透水岩体，厂址区的岩体以微透水岩体为主。厂址外有两处利用地下水地点，即罗田乡水厂和峡江成晟铁矿,根据厂址居民饮水调查和厂址设计要求，核电站的修建不会对厂址地下水产生影响。 关键词：核电站; 水文地质特征; 地下水; 渗透系数 东华理工大学毕业论文 ABSTRACT ABSTRACT The analysis on hydrologic geological condition was an important content of nuclear power plant sitting evaluation. This article took Jiang Xi he kui chief n- unclear power plant sitting projects as the research object. The chief aim of the present work was to find out the planned area hydrogeology conditions ,providing powerful basis for the establishment of the nuc- lear power plant in the future. Based on the analyzes in the nuclear power plant natural geography，topography，formation lithology,geological structure, factory district area hydrogeological characteristics. Further analysised of hydrogeological conditions around the nuclear power plant, it was divided into two hydrogeological units and four water-bearing rock group. Factory nearby groundwater formed a self-contained groundwater recharge, runoff, drainage system.Groundwater PH was value between 5.99 ~ 6.98, hydrochemical types mainly HCO3 - Ca model, groundwater was a neutral water. Loose quaternary pore water permeability coefficient of 1.08 x 10-2 cm/s, was strong permeable. Weathered the permeability coefficient is 2.01 * 10-3 ~ 2.89 * 10 ~ 3 cm/s , belong to the water . Strong weathering rock mass permeability coefficient was 3.945 ~ 5.72 x 10-4 x 10 ~ 3 cm/s, for the medium permeable . Medium weathering and breeze turn layer permeability coefficie