|
| 不同补水模式下芒硝盐岩风化物水盐运移试验研究 |
| Experimental Study on Water and Salt Transport of Weathering Product of Mirabilite Rock under Different Water Replenishment Modes |
| |
| DOI： |
| 中文关键词: 芒硝盐岩风化 降雨入渗 降雨后蒸发 潜水蒸发 水盐运移 |
| 英文关键词: Weathering of mirabilite rock Rainfall infiltration Evaporation after rainfall Evaporation from phreatic water Water and salt transport |
| 基金项目:国家自然科学基金资助项目（42367025）；“芒硝盐岩弃渣场生态修复与植被重建关键技术研究与示范”基金资助项目（KX132021013） |
|
| 摘要点击次数: 50 |
| 全文下载次数: 15 |
| 中文摘要: |
| 以云南禄丰黑井骄子山隧洞工程中的芒硝盐岩弃渣场风化物为研究对象，通过现场调研和取样开展室内土柱模拟试验，研究芒硝盐岩风化物堆积体在降雨入渗、降雨后蒸发和潜水蒸发等3种不同补水模式下的水盐运移规律。结果表明：降雨入渗情况下总体上呈现盐随水走、向下聚集的趋势；降雨后蒸发情况下总体上呈现盐随水走、水去盐存的趋势，盐分随水分进行迁移与所含易溶盐溶解度、土壤含水量及土壤空隙有关；潜水蒸发情况下总体上呈现盐随水走、向上聚集的趋势。 |
| 英文摘要: |
| Taking the weathering product of mirabilite rock from Jiaozishan Tunnel Project in Heijing， Lufeng， Yunnan as the research object， through field investigation and sampling， soil column simulation experiments were conducted in the laboratory to study the water and salt transport patterns of weathering product of mirabilite rock under three water replenishment modes of rainfall infiltration， evaporation after rainfall and evaporation from phreatic water. The results indicated that under the condition of rainfall infiltration， there was an overall trend of salt moving with water and accumulating downwards. Under the condition of evaporation after rainfall， there was an overall trend of salt moving with water and salt retention after water removal. The migration of salt with water was related to the solubility of soluble salts， soil moisture content and interstices of soil. Under the condition of evaporation from phreatic water， there was a general trend of salt moving with water and accumulating upwards. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
