《Table 1 Physical properties of samples in the test》
本系列图表出处文件名:随高清版一同展现
《The drainage of the aquitard and its implication for groundwater exploitation in Hengshui City》
The water-saturation content of samples mainly ranges from 0.5 to 0.8(Table 1).The waterunsaturated aquitard is mainly influenced by sedimentary and lithologic characteristics.Gas is the main content of clay soil developed year after year.Due to deposition and crustal movement,clay soil serving as aquitard hinders the direct hydraulic connection between aquifers.It is harder for groundwater to flow in aquitard than sand and gravel layer.The special structure of clay can contain more water,but the gas cannot be discharged absolutely from pores for the weak permeability of clay soil.Even though groundwater leakage happens between aquifers for groundwater exploitation,some holes in aquitard still cannot be totally filled with water.
图表编号 | XD0016467200 严禁用于非法目的 |
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绘制时间 | 2018.06.01 |
作者 | SU Chen、WANG Ying、ZHENG Zhao-xian、CHENG Zhong-shuang、CHEN Jiang、HAO Qi-chen |
绘制单位 | Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences、Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences、Institute of Hydrogeology and Environmental Geology, Chinese Academy of |
更多格式 | 高清、无水印(增值服务) |