论文部分内容阅读
本文就某水源地潜水完整井用非稳定流确定含水层参数的情况,试谈各方法应用的合理性。水源地位于一级冲积阶地上,孔隙潜水含水层系砾砂园砾层,其厚度为16.919米,地下水埋深9.781米,水力坡度i=0.001388,地下水流向南南东。抽水试验采用稳定流与非稳定流抽水相结合,进行两次抽降。第一次抽降深 S_1=1.741米,其相应水量Q_1=19.88升/秒;第二次降深s_2=0.922米,出水量Q_2=11.478升/秒。各观测孔的水位降如表1所列。现分别叙述用非稳定流确定参
In this paper, the determination of aquifer parameters by using unsteady flow in a complete well of a submerged source in a certain water source is discussed, and the rationality of application of each method is discussed. The water source is located on the first stage of alluvial terraces. The pore submerged aquifer is gravel sand gravel layer, which has a thickness of 16.919 meters and a groundwater depth of 9.781 meters. The water gradient is i = 0.001388. The groundwater flows to the south and south east. Pumping tests using a combination of steady flow and unsteady flow pumping, pumping twice. The first drawdown depth S_1 = 1.741 meters, the corresponding amount of water Q_1 = 19.88 liters / second; the second depth s_2 = 0.922 meters, the amount of water Q_2 = 11.478 liters / second. The water level drop of each observation hole is listed in Table 1. Are described separately with unsteady flow to determine parameters