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文章中应用 Motz(1978)提出的关联含水层模型,对佛罗里达州、帕斯科郡西南部的 Jay B.Starkey Wilderness 公园井场的水位降预报进行了研究。关联含水层中假设,从下部承压含水层中抽出来的水是来源于上覆封闭层的渗漏补给,而且渗漏使得上覆潜水含水层的蒸发量逐渐衰减。∈用表示单位潜水水位降时的线性蒸发衰减率。通过对公园井场研究,获得了根据观测抽水量及水位降数据,如何用关联含水层型模型校核水文地质参数及增加抽水率以后,如何评价潜水含水层和承压含水层水位降的实例。文章中采用公园西部由于五口井抽水影响产生的水位降对比用模型设计出来的水位降,求得∈=1.12×10~(-3)加仑/英尺~3日(1.76×10~(-9)/秒)。并对扩展井场的五种选择方案进行审查后,建议在公园的东部和中部扩展井场.
In this paper, the associated aquifer model proposed by Motz (1978) is applied to forecast the water level drop at the well site of Jay B. Starkey Wilderness Park in southwest Pasco County, Florida. It is assumed in the associated aquifer that the water withdrawn from the lower confined aquifer is derived from the seepage replenishment of the overlying confinement and the seepage gradually decays the evaporation of the overlying submerged aquifer. ∈ denote the linear evaporative decay rate when unit submersible water level falls. Through the study on the well site of the park, an example of how to evaluate the water level drop of submerged aquifers and confined aquifers based on observed pumping data and water level drop data, how to check hydrogeological parameters by using the associated aquifer model and increase the pumping rate . In this paper, we compare the water level drop caused by the pumping in the five wells in the western part of the park with the water level drop calculated by the model and obtain ∈ = 1.12 × 10 -3 gallons per foot to 3 days (1.76 × 10 -9 )/second). Following a review of the five options for the expansion of the wellsite, it is proposed to expand the wellsite in the eastern and central parts of the park.