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在水文地質勘探中,常用分层抽水了解各含水层的水质、水量。为了帮助确定分层界线,而从砂层中鑑定可溶性氯离子的含量,这样可以較精确地了解不同地段的水质水量。在地下水中氯离子分布极广,同时因氯化物有很好的溶解度,且地下水在砂层中是运动着的,水矿化度愈高砂中含鹽量也就愈高。所以由钻孔中取出原狀砂样,分析其中可溶性氯离子含量,作为指导分层抽水深度界限,是很必要的。其原理及
In hydrogeological exploration, stratified pumping is often used to understand the quality of water and water in each aquifer. In order to help define the demarcation line, the amount of soluble chloride ion is identified from the sand so that the water quality in different locations can be more accurately understood. In the groundwater chloride ion distribution is extremely wide, at the same time due to chloride solubility has good, and groundwater in the sand is moving, the higher the water salinity of salt in the sand will be higher. Therefore, it is necessary to remove the undisturbed sand sample from the borehole and analyze the soluble chlorine ion content therein as a guideline for the depth of stratified pumping. Its principle and