| 1. | Visual modflow and its application problems in groundwater simulation
及其在地下水模拟中的应用 |
| 2. | Application of visual modflow in groundwater numerical simulation for water source area
在水源地地下水数值模拟中的应用 |
| 3. | The low vulnerability areas were conformed to high productive zones whereas the high vulnerability areas were coincided with heavy pumping well fields those indicated from visual modflow results respectively
其中安全区域多为富水性好的区域而危险区域多数缘于水源地过高的开采率。 |
| 4. | Generally this research successfully formulated a new approach of quantitative gva , confirmed that visual modflow can be used successfully as a comparative technique for quantitative groundwater vulnerability and evaluated the effect of riverbed conductance on river leakage
此次研究创造性地采用了一种新的地下水脆弱性定量评价方法，结果同时也说明可视化modflow可以用做地下水脆弱性定量评价和河床沉积物渗透性影响的对比技术。 |
| 5. | This research is proposed to formulate a new approach that used for the first time for quantitative groundwater vulnerability assessment ( gva ) through gis programs , based on visual modflow as comparative technique ; evaluate river - aquifer interaction and assess the effect of riverbed conductance on river leakage using the natural field conditions instead of hypothetical models that used in the pervious researches
本研究使用了一种新的地下水脆弱性评价方法? ?基于gis与可视化modflow地下水流数值模拟结果上的地下水脆弱性评价，并用数值模拟结果作为其对比技术；评价了河流与附近含水层的相互作用。 |
| 6. | Then the isoparametric finite - difference three - dimensional transient groundwater numerical model is presented . visual modflow , the most popular standard visualization software package approved by the hydraulic scientists and technicians on simulating the groundwater flow is used to simulate and calibrate the groundwater level and quantity of the research area . at last , the changes of the hydraulic head and the produced quantity in the future were predicted according to the tested parameter and the modified model
在水文地质概念模型的基础上，进一步建立了研究区完整的三维有限差分非稳定流数学模型，利用目前国际上最盛行，且被各国同行一致认可的三维地下水流模拟软件? ? visualmodflow对该区地下水的水位和水量进行模拟求解，最后，利用识别的参数和验证后的模型预测了今后的水位变化趋势和可开采量。 |
| 7. | The river package of visual modflow code was used to understand the interaction between songhuajiang river and the nearby aquifer and the effect of riverbed conductance on river leakage . induced infiltration , reduced baseflow , river losing and river gaining are the main factors used to demonstrate these phenomena
用modflow的河流程序包对松花江与附近含水层以及河床沉积物渗透性的互联系进行分析，并用诱发入渗、基流减少、河流失水和河流得水等4个主要因子来证明。 |
| 8. | A new approach of gva that formulated to relatively quantify the groundwater depletion risk was evaluated with visual modflow results to determine the accuracy of the vulnerability maps . there are very close acceptable match of the groundwater vulnerability index map results with visual modflow simulation results
本文使用新的地下水脆弱性评价方法同时把所得的脆弱性评价结果与数值模型模拟结果进行对比，证明该方法准确可靠，可用于指导该地区地下水资源的开发利用与保护。 |
| 9. | In recent years , many barrages have been founded in dagu river , which greatly change the conditions of the exploitation and supply of groundwater . on the basis of calibration of mathematical model of hydrogeology , the effect of diversified factors on the variation of groundwater is analyzed using visual modflow software , the recharge capacity of rubber dam to the groundwater storage is studied and the allowable withdrawl of groundwater with the influence of manpower is calculated again
近年来大沽河干流及支流已增加多处拦河坝工程致使地下水采补条件发生了较大变化，本文利用visualmodflow软件分析了各种影响因素对地下水动态的影响，研究了橡胶坝对地下水库的补给能力并重新核算了人工影响条件下大沽河地下水库的允许开采量。 |
| 10. | Visual modflow computer code was selected to simulate heads distribution , calculate the zone budgets of the area , evaluate the effect of external stresses on the groundwater head , to determine how much water would be diverted from the river as the result of pumping and to demonstrate how the groundwater model can be used as a comparative technique to formulate a new approach for the quantitative groundwater vulnerability assessment in order to optimize utilization of the resource
在分析河床沉积物渗透性对模型结果的影响时，采用了实际野外水文地质条件而不像前人所采用的假想模型。本论文用visualmodflow建立数值模型模拟预测了地下水水头分布，计算区域的水均衡，分析源汇项对地下水水位的影响。在此基础上进行了全区的地下水脆弱性评价，为地下水资源的合理开发利用提供依据。 |
