论文部分内容阅读
井孔抽水試驗是野外水文地質調查中一項重要的工作,它关系着水文地質工作者是否能正确解决問題。大家都知道,抽水試驗必须进行到降落漏斗稳定和与孔中水位降低相应的流量稳定时为止。根据現有的规范;一般在抽水試驗时,要使稳定的降落漏斗和相应的稳定流量保持8—12小时(在多孔抽水时,利用观测孔來确定降落漏斗是否已稳定)。因此,在形成了稳定的降落漏斗和得到相应的稳定流量后,为了証明它們不再变化,抽水工作还须继
Wellbore pumping test is an important work in field hydrogeological survey, which is related to whether hydrogeologists can correctly solve the problem. As we all know, the pumping test must be carried out until the landing funnel is stable and the flow rate corresponding to a drop in the hole is stable. In accordance with existing codes, it is common practice to maintain a stable drop funnel and corresponding steady flow for 8-12 hours during the pumping test. (In porous pumping, use observation holes to determine if the falling funnel is stable.) Therefore, after the formation of a stable landing funnel and the corresponding steady flow, in order to prove that they no longer change, pumping work must continue