【摘要】 为保障郑州市突发时刻供水安全,在郑州市沿黄河的万滩一带勘查一处应急后备水源地。水源地的选址以资料收集及野外补充调查为主,通过资料综合分析,筛选出合适的水文地质计算参数,通过计算机DOS编程,采用解析法对水源地开采进行水位预报评价,用比拟法对开采资源量进行了验证,确定开采资源量为19.8×104 m3/d,在连续应急开采200d后,中心井位最大水位降深为10.81m,水位降深引发的地质环境问题较小。郑州市万滩应急地下水水源地处于黄河下游的黄河冲积扇中上部,第四系孔隙含水层巨厚,地下水储存量丰富,黄河常年补给地下水,具有丰富的地下水资源补给保障且水质较好。水源地可以作为未来突发时刻郑州市中短期供水的补充水源。更多还原

【Abstract】 In order to ensure the safety of water supply in Zhengzhou City,an emergency water source area is investigated in Wantan along the Yellow River.The selection of water source sites is mainly based on the data collection and supplementary field survey.On the basis of comprehensive analysis of the data,suitable parameters are selected for hydrogeological calculation.Through computer DOS programming,analytical methods are used to predict and evaluate the water level in the water source areas.The amount of water resources is verified with the analogy method,and the amount of water resources is determined to be 19.8×104 m3/d.After 200 days of continuous emergency exploitation,the maximum water level of the central well site is reduced to be 10.81 mlower,and the geological environmental problems caused by the water level drop are minor.The emergency groundwater source of Wantan in Zhengzhou City is located in the middle and upper parts of the alluvial fan and lower reaches of the Yellow River.The Quaternary pore aquifer is very thick and the groundwater resources are abundant.The Yellow River replenishes groundwater all year round.There are abundant groundwater resources and water quality is good.The water source area can be used as a supplementary water supply for short or medium emergency terms in the future in Zhengzhou.更多还原