| 降雨入渗补给地下水数值模拟研究 |
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| 引用本文： | 何渊.降雨入渗补给地下水数值模拟研究[J].中国煤炭地质,2014(7):36-41. |
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| 作者姓名： | 何渊 |
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| 作者单位： | 中煤科工集团西安研究院有限公司,陕西西安710054 |
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| 基金项目： | 国家科技支撑项目（2012BAC10B00）. |
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| 摘 要： | 针对在地下水资源评价中入渗补给量采用经验估算存在较大误差的问题,以神东矿区为例,在广泛调查矿区包气带岩性结构并结合野外取样、室内参数测定的基础上,采用数值模拟的方法建立包气带水分运移数值模拟模型,定量模拟矿区内不同地段降雨入渗强度,探讨影响降雨入渗强度的主要因素,计算得出研究区降雨入渗系数大致在0.18~0.27,分析认为影响降雨入渗强度的因素有降雨量、潜水埋深、包气带岩性等。其中在研究区广泛分布的风积沙对地下水资源起到了一定的保护作用。
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| 关 键 词： | 包气带 数值模拟 降雨入渗 土壤水力学参数 神东矿区 |
Study on Rainfall Infiltration Recharge Numerical Simulation |
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| He Yuan.Study on Rainfall Infiltration Recharge Numerical Simulation[J].Coal Geology of China,2014(7):36-41. |
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| Authors: | He Yuan |
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| Institution: | He Yuan (Xian Research Institute, China Coal Technology ＆ Engineering Group Corp, Xian, Shaanxi 710054) |
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| Abstract: | In allusion to the inaccuracy existed in empirical estimation of the recharge from rainfall infiltration, A research had been carried out in Shendong mining area. Based on broad inquiry of aeration zone lithologic structure in the mining area, combined with field sampling, laboratory parameter measurement carried out aeration zone moisture migration numerical simulation modeling. Quantitatively simulated rainfall infiltration intensity, discussed main factors impacting the intensity, estimated rainfall infiltration coefficient approximately at 0.18-0.27 in the study area. Analysis has considered that factors impacting rainfall infiltration intensity have rainfall rate, phreatic water buried depth, aeration zone lithology etc. Furthermore, the eolian sand is widely distributed in the study area has played a certain protective effect for groundwater resources. |
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| Keywords: | aeration zone numerical simulation rainfall infiltration hydraulic parameters of soil Shendong mining area |
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