【摘要】 为研究河北平原深层地下水的渗透系数 ,应用加速器质谱计对河北平原深层地下水样品的x(36 Cl) /x(Cl)值进行了测定 ,并结合Darcy定律进行研究 .结果表明 ,河北平原第四系第三含水组的雄县龙湾至沧县崔尔庄段地下水的平均渗透系数为 0 .4 4m·d- 1;安新县中青乡至沧县崔尔庄段地下水的平均渗透系数为 0 .5 2m·d- 1.第四含水组安新县中青乡至沧县景城段地下水的平均渗透系数为 0 .2 2m·d- 1.任丘市的第四系第四含水组与第三系含水组之间黏性土隔水层的平均渗透系数为 3.0 1× 10 - 6 m·d- 1.沧县景城和东光县大张华煜化工厂 2处第四系第四含水组与第三含水组之间的黏性土隔水层的平均渗透系数分别为 0 .4 0× 10 - 6 和 3.12× 10 - 6 m·d- 1.更多还原

【Abstract】 To estimate the hydraulic conductivity of deep aquifer of Hebei Plain, the x ( 36 Cl)/ x (Cl) values of groundwater samples are determined by tandem accelerator mass spectrometry. The hydraulic conductivity is calculated by the Darcys law and the x ( 36 Cl)/ x (Cl) values. From the Longwan of Xiong county to the Cuier village of Cang county, the mean hydraulic conductivity is 0.44 m·d -1 in the third aquifer of the Quaternary sediments, and from the Zhongqing of Anxin county to the Cuier village of Cang county it is 0.52 m·d -1 in the same aquifer. In the fourth aquifer of the Quaternary sediments, it is 0.22 m·d -1 from the Zhongqing of Anxin county to the Jingcheng of Cang county. The mean hydraulic conductivity of the clay band is 3.01×10 -6 m·d -1 between the fourth aquifer of the Quaternary sediments and the Tertiary aquifer in Renqiu city. Between the fourth and the third aquifers of the Quaternary sediments in the Jingcheng of Cang county and the Dazhang chemical plant of Dongguang county the mean hydraulic conductivity is 0.40×10 -6 and 3.12× 10 -6 m·d -1 respectively.更多还原