| 钱家忠,吴剑锋,董洪信,朱学愚.徐州市张集水源地裂隙岩溶水三维等参有限元数值模拟[J].水利学报,2003,34(3):0037-0041 |
| 徐州市张集水源地裂隙岩溶水三维等参有限元数值模拟 |
| An isoparametric finite element 3 D numerical model for the fracture karst flow in a wells field |
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| DOI： |
| 中文关键词: 水源地 裂隙岩溶水 等参有限元 三维数值模拟 |
| 英文关键词: wells field fracture karst water isoparametric infinite element 3 D numerical model |
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| 摘要点击次数: 2748 |
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| 中文摘要: |
| 基于徐州市张集水源地裂隙岩溶水贮存和运动特征 ，建立了三维有限元数学模型，利用等参有限元方法求解，并根据大型群孔干扰抽水试验资 料，识别模型参数，进一步对裂隙岩溶水资源的开采方案进行了评价，得到结论如下：(1) 模型具有较高的精度，适合于张集水源地裂隙岩溶水资源评价；(2)张集水源地的允许开采 量为13.71万m3/d，这一数值是有保证的；(3)在年降水量大于846.4mm(该区历史上降水 量偏 低的10年的年平均降水量)的年份，允许开采量可增大。上述结论为水源地开采提供了依据 ，同时对条件类似地区的地下水资源评价具有重要的参考价值。 |
| 英文摘要: |
| The authors developed a 3 D finite element numerical model to simulate the fracture karst water flow in a wells field located at Zhangji of Xuzhou City.The iso parametric finite element technique was adopted.Parameters of the model were identified with the data obtained from the pumping test.Some exploitation schemes on fracture karst water resources were evaluated with the model computation.The results showed that:the model was fit for the evaluation of groundwater resources in the Zhangji wells field and the alike;the allowable pumping volume for Zhangji well field was 137,100m3/d;the allowable pumping volume may be increased when the annual precipitation exceeds 846.4mm(the average value of the lowest 10 years' annual precipitation).The analysis above can be taken as a basis for Zhangji wells field exploitation as well as a reference for similar water resources areas. |
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