| 王诏楷,束龙仓,刘波,杨寅星,张运铎.孔隙结构对地下水回灌颗粒堵塞影响的试验研究[J].水利学报,2021,52(4):498-506 |
| 孔隙结构对地下水回灌颗粒堵塞影响的试验研究 |
| Experimental research on the effects of pore structure on particle clogging of groundwater recharge |
| 投稿时间：2020-08-14 |
| DOI：10.13243/j.cnki.slxb.20200636 |
| 中文关键词: 颗粒堵塞 孔隙结构 地下水回灌 物理试验 |
| 英文关键词: particle clogging pore structure groundwater recharge physical experiment |
| 基金项目:国家自然科学基金面上项目（41572210） |
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| 摘要点击次数: 1924 |
| 全文下载次数: 818 |
| 中文摘要: |
| 地下水人工回灌是增加地下水补给量的有效手段，颗粒堵塞是影响地下水回灌效率的主要因素，介质孔隙结构是颗粒堵塞发生发展的直接影响因素。为了研究孔隙结构如何对地下水回灌颗粒堵塞产生影响，基于地下水回灌工程实际，设计并搭建了一维砂柱物理模型，通过玻璃珠介质和石英砂介质的对比试验，研究了介质孔隙结构对地下水回灌颗粒堵塞的影响。定量表达并分析了孔隙结构对颗粒运动过程和颗粒堵塞发生发展的影响。对试验现象进行了定量描述和理论推导，分析总结了地下水回灌试验过程中的颗粒运动规律及颗粒堵塞机理。研究表明，地下水回灌过程中介质孔隙结构越不规则，颗粒堵塞发展越快、发展程度越高、影响范围越大。本研究为地下水人工回灌等提供了一定介质孔隙结构对颗粒堵塞影响方面的理论参考。 |
| 英文摘要: |
| Artificial groundwater recharge is an effective means to increase supplementary amount of ground-water,while particle clogging is the main factor affecting the groundwater recharge efficiency,and the pore structure of the media is the direct factor affecting the occurrence and development of particle clogging. In order to study the influence of pore structure on the particle clogging of groundwater recharge, a one-dimensional sand column physical model was designed and built based on the practice of groundwater recharge engineering, and the influence of pore structure on the particle clogging of groundwater recharge was studied through the comparison experiments of glass bead media and quartz sand media. The influence of pore structure on particle movement and the occurrence and development of particle clogging was quantitatively expressed and analyzed. The experimental results were quantitatively described and a theoretical explanation was provided. The law of particle movement and the mechanism of particle clogging during ground-water recharge experiments were analyzed and summarized. The study shows that the more irregular the pore structure of the medium during groundwater recharge,the more rapid the development oparticle clogging,the higher the development degree and the larger the influence range. This study provides a theoretical reference about the influence of pore structure of media on particle clogging for research on groundwater recharge. |
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