降雨对裂隙型岩溶含水系统演化影响的数值模拟研究
本文在构建有降雨入渗及河流补给的裂隙型岩溶含水系统的概念模型基础上,采用有限差分数值方法,利用裂隙渗流立方定律及Dreybort（1996）经过实验总结出的碳酸钙溶蚀经验公式,定量地计算了裂隙型岩溶含水系统经过10 000年溶蚀的演化形态及岩溶泉的变化。模拟发现,岩溶含水系统的溶蚀主要发生在降雨入渗面处、河流补给处和岩溶泉的出露点附近。随着溶蚀的进行,岩溶含水系统的潜水位不断下降部分岩溶泉被疏干,通过计算岩溶泉汇流管道的隙宽变化,发现岩溶含水系统会出现明显的差异性溶蚀。在模拟过程中调节降雨量的大小发现降雨入渗对有河流补给的岩溶含水系统的演化影响并不显著。...
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| Published in | 中国岩溶 Vol. 36; no. 1; pp. 42 - 48 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国辐射防护研究院三废治理研究所,太原030006
2017
中国地质大学(北京)水资源与环境学院,北京100083%中国地质大学(北京)水资源与环境学院,北京,100083%中国辐射防护研究院三废治理研究所,太原,030006 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-4810 |
| DOI | 10.11932/karst20170105 |
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| Abstract | 本文在构建有降雨入渗及河流补给的裂隙型岩溶含水系统的概念模型基础上,采用有限差分数值方法,利用裂隙渗流立方定律及Dreybort（1996）经过实验总结出的碳酸钙溶蚀经验公式,定量地计算了裂隙型岩溶含水系统经过10 000年溶蚀的演化形态及岩溶泉的变化。模拟发现,岩溶含水系统的溶蚀主要发生在降雨入渗面处、河流补给处和岩溶泉的出露点附近。随着溶蚀的进行,岩溶含水系统的潜水位不断下降部分岩溶泉被疏干,通过计算岩溶泉汇流管道的隙宽变化,发现岩溶含水系统会出现明显的差异性溶蚀。在模拟过程中调节降雨量的大小发现降雨入渗对有河流补给的岩溶含水系统的演化影响并不显著。 |
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| AbstractList | 本文在构建有降雨入渗及河流补给的裂隙型岩溶含水系统的概念模型基础上,采用有限差分数值方法,利用裂隙渗流立方定律及Dreybort（1996）经过实验总结出的碳酸钙溶蚀经验公式,定量地计算了裂隙型岩溶含水系统经过10 000年溶蚀的演化形态及岩溶泉的变化。模拟发现,岩溶含水系统的溶蚀主要发生在降雨入渗面处、河流补给处和岩溶泉的出露点附近。随着溶蚀的进行,岩溶含水系统的潜水位不断下降部分岩溶泉被疏干,通过计算岩溶泉汇流管道的隙宽变化,发现岩溶含水系统会出现明显的差异性溶蚀。在模拟过程中调节降雨量的大小发现降雨入渗对有河流补给的岩溶含水系统的演化影响并不显著。 P624.25; 本文在构建有降雨入渗及河流补给的裂隙型岩溶含水系统的概念模型基础上,采用有限差分数值方法,利用裂隙渗流立方定律及Dreybort(1996)经过实验总结出的碳酸钙溶蚀经验公式,定量地计算了裂隙型岩溶含水系统经过10 000年溶蚀的演化形态及岩溶泉的变化.模拟发现,岩溶含水系统的溶蚀主要发生在降雨入渗面处、河流补给处和岩溶泉的出露点附近.随着溶蚀的进行,岩溶含水系统的潜水位不断下降部分岩溶泉被疏干,通过计算岩溶泉汇流管道的隙宽变化,发现岩溶含水系统会出现明显的差异性溶蚀.在模拟过程中调节降雨量的大小发现降雨入渗对有河流补给的岩溶含水系统的演化影响并不显著. |
| Abstract_FL | The 10,000 years evolution of fractured karst system,which has precipitation infiltration and river recharge,is calculated using finite difference method,cubic law and Dreybort's (1996) empirical formula after building on the conceptual model of fractured karst system The result shows that the dissolution of karst aquifer system mainly occurs in the point of precipitation infiltration,recharge rivers and karst springs.With the dissolution of the karst aquifer system,the water tables were declining and some of the karst springs were dry.We found that the number of precipitation infiltration does not significantly affect the evolution of fractured karst system which has river recharge. |
| Author | 毛亮 于青春 王敬霞 李洪辉 赵帅维 贾梅兰 |
| AuthorAffiliation | 中国辐射防护研究院三废治理研究所,太原030006 中国地质大学北京水资源与环境学院,北京100083 |
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| Author_FL | MAO Liang WANG Jingxia JIA Meilan YU Qingchun LI Honghui ZHAO Shuaiwei |
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| DOI | 10.11932/karst20170105 |
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| Keywords | carbonate dissolution rate 岩溶演化 fracture seepage 裂隙渗流 数值模拟 karst evolution 碳酸盐溶蚀速率 numerical simulation |
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| Notes | karst evolution, fracture seepage, carbonate dissolution rate, numerical simulation The 10,000 years evolution of fractured karst system,which has precipitation infiltration and river recharge, is calculated using finite difference method, cubic law and Dreybort＇s （1996） empirical formula af- ter building on the conceptual model of fractured karst system The result shows that the dissolution of karst aquifer system mainly occurs in the point of precipitation infiltration, recharge rivers and karst springs. With the dissolution of the karst aquifer system, the water tables were declining and some of the karst springs were dry. We found that the number of precipitation infiltration does not significantly affect the evolution of fractured karst system which has river recharge. 45-1157/P MAO Liang1,2 , YU Qingchun2 , WANG Jingxia2 , LI Honghui1 , ZHAO Shuaiwei1 , JIA Meilan1 （ 1. China Institute Jbr Radiation Protection, Taiyuan, Shanaci 030006, China ; 2. School of Water Resource＆Environment, China University of Ge |
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| Publisher | 中国辐射防护研究院三废治理研究所,太原030006 中国地质大学(北京)水资源与环境学院,北京100083%中国地质大学(北京)水资源与环境学院,北京,100083%中国辐射防护研究院三废治理研究所,太原,030006 |
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| Snippet | 本文在构建有降雨入渗及河流补给的裂隙型岩溶含水系统的概念模型基础上,采用有限差分数值方法,利用裂隙渗流立方定律及Dreybort（1996）经过实验总结出的碳酸钙溶蚀经验公... P624.25; 本文在构建有降雨入渗及河流补给的裂隙型岩溶含水系统的概念模型基础上,采用有限差分数值方法,利用裂隙渗流立方定律及Dreybort(1996)经过实验总结出的碳酸钙溶蚀... |
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| SubjectTerms | 岩溶演化 数值模拟 碳酸盐溶蚀速率 裂隙渗流 |
| Title | 降雨对裂隙型岩溶含水系统演化影响的数值模拟研究 |
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