【摘要】 依托在潜水含水层中开展的10组高分辨率抽水试验,探讨了泰斯(Theis)、博尔顿(Boulton)和纽曼(Neuman)3种潜水井流模型的识别精度。结果表明:泰斯模型由于忽略了潜水含水层的三维流动和潜水含水层重力释水的滞后效应,因此无法真实反映潜水井流的运动特征和释水机理;博尔顿模型能够较好地刻画抽水试验早期潜水含水层重力给水滞后的主要特征;既考虑潜水含水层重力滞后给水机理,又同时考虑了潜水含水层三维流动特征的纽曼模型最能全面反映潜水含水层井流试验的运动特征和释水机理。更多还原

【Abstract】 The calculation accuracy of Theis,Boulton and Neuman models for well flow in an unconfined aquifer was discussed based on 10 group of pumping tests with high resolution.The results showed that Theis model can not reflect the movement characteristics and water yield mechanism of well flow in an unconfined aquifer,due to neclecting three-dimensional flow and hysteresis effect of water yield by gravity in phreatic aquifer.The Boulton model can well describe the main characteristics of hysteresis effect of water yield for the early phase of the pumping test.The Neuman model,which considered both the three-dimensional flow and hysteresis effect of water yield,was the best model that comprehensively reflected the movement characteristics and water yield mechanism of well flow in unconfined aquifer.更多还原