摘要
以广东省封开县某矿区为例,在对研究区地下水环境调查评价的基础上,通过数值模拟计算,预测分析了矿产资源开发活动对地下水环境的影响程度。研究结果表明,矿产资源开发过程中地下水流场变化较大的区域主要分布于巷道上游约1 000m、下游约600m范围内,在该区域应定时监测水位变化情况;稳定流场条件下,非正常工况选矿废水沉淀池污染物渗漏8a后Cu对地下水贡献值超过0.05mg/L的距离可达149m,污染物超标带地下水开始向板梯河以泄流方式排放污染物。如果能采取有效的防渗措施,可大大降低矿产资源开发活动对矿区及周边地下水环境的影响。
On the basis of groundwater environment investigation and evaluation,a numerical simulation was performed to analyze the effects of mineral resource development on groundwater environment of a mining area in Fengkai County of Guangdong Province.The results showed that the area with significant effects on groundwater flow field during the mineral resource development is within the range of 1 000 mupstream and 600 mdownstream,and groundwater levels in this area need to be regularly monitored.Under steady groundwater flow and after the pollutants in the mineral processing wastewater settling tank under the abnormal working conditions spill eight years,the distance that the content of Cu in groundwater exceeds 0.05mg/L can reach149 m,and groundwater in the excessive pollutants zones begins to discharge pollutants to the Banti River.Effective seepage control measures need to be conducted to reduce the impact of mineral resource development activities on groundwater environment in the mining and its surrounding areas.
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2015年第2期289-293,共5页
South-to-North Water Transfers and Water Science & Technology
关键词
矿产资源开发
地下水
环境影响
污染防治
mineral resources development
groundwater
environmental effects
prevention and remediation of pollution
