【摘要】 探讨双封隔器技术在水文地质勘查中的优势及适用条件。以无锡市WTS01井为例,阐述了195型双封隔器技术在水文勘探孔洗井及分层抽水试验中的工作原理,并对结果进行分析。结果显示:双封隔器技术可显著提高洗井效果,与活塞洗井相比较,渗透系数提高了3.5倍;双封隔器技术实现了"一孔同径、分层抽水、一层抽水、多层监测",可用于相邻含水层垂向水力联系的研究。更多还原

【Abstract】 The new technique of Model 195 double packer is applied to well washing and stratified pumping test of hydrological exploration borehole of WTS01 in Wuxi City, in order to explore the advantages and applicable conditions of the new technology. The working principles of this new technique are introduced and the obtained results are analyzed. It shows that the double packer can significantly improve the effect of well flushing, and its permeability coefficient is 3.5 times higher than that of piston flushing. The new technique of double packer can achieve such effects as same diameter in one drilling hole, stratified pumping, single layer pumping and simultaneous monitoring for multilayers. Therefore, it can be used to study the vertical hydraulic connection of adjacent aquifers.更多还原