| 沈振中,陈雰,赵坚.岩溶管道与裂隙交叉渗流特性试验研究[J].水利学报,2008,39(2): |
| 岩溶管道与裂隙交叉渗流特性试验研究 |
| Experimental study on seepage characteristics of the intersection of tubular karst passage and fissure |
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| DOI： |
| 中文关键词: 岩溶管道 裂隙 交叉渗流 室内试验 局部水头损失 折算渗透系数 正交统计分析 |
| 英文关键词: karst tubular passage intersection fissure seepage local head loss reduced permeability coefficient orthogonal statistical analysis |
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| 摘要点击次数: 3139 |
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| 中文摘要: |
| 研制了光滑岩溶管道和裂隙交叉的水力特性室内试验模型。采用正交试验设计方法安排试验，测得了48组岩溶管道和裂隙不同交叉、不同水力情况下的渗流水力特性数据。采用正交统计分析法分析绘制试验因子关系曲线图，详细研究裂隙宽度、岩溶管道直径及进水水头对试验成果的影响。定量分析了岩溶管道与裂隙交叉时其折算渗透系数与长度、直径等因素之间的关系，并在量纲分析的基础上，采用变结构遗传算法建立了计算岩溶管道和裂隙交叉时管道汇流量的数学表达式。最后将计算值与试验值对比，结果表明，所建立的公式能较好地反映影响管道汇流量各因素之间的内在联系。 |
| 英文摘要: |
| An experimental installation for testing the hydraulic characteristics of intersection of smooth tubular karst passage and fissure is developed. According to the orthogonal design method the seepage characteristics data of 48 sets of experiment for different intersection angles and different water heads are obtained. The influences of fissure width, tubular passage diameter and water head on seepage are studied by using orthogonal statistical method. The relationships between reduced permeability and passage length as well as the diameter are quantitatively investigated. A mathematical model for calculating the confluence seepage discharge is established using changeable structure genetic algorithm based on dimension analysis. |
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