摘要
煤炭开采引起大面积沉陷,利用粉煤灰或煤矸石作为充填介质,并覆盖一定厚度土壤的方法进行土地复垦是一种重要的充填模式。以粘质土壤、粉煤灰、煤矸石为研究对象,采用室内试验方法分别测定其物质的水分特征曲线、非饱和导水率曲线、容水度、水分扩散度等充填结构包气带的水分运动参数,为研究土壤-粉煤灰、土壤-煤矸石充填结构包气带水分运动规律提供参考依据。
Because of subsidence by large area caused by coal mining,it is coming to being to a kind of important filling pattern which is using the fly ash or coal gangue as filling medium,and covering a certain thickness of soil method for land reclamation.The paper is regarded viscous soil,fly ash,coal gangue as studied object,using the indoor test methods to determine the water movement parameter of their material moisture characteristic curve,the water rate curve,unsaturated let water degree,water diffusion degree and filling structure gas law and provides references for future study.
出处
《地下水》
2012年第6期13-16,共4页
Ground water
基金
安徽省高校省级自然科学研究项目(KJ2011Z337)
关键词
充填结构
粉煤灰与煤矸石
特征曲线
水分参数
Filling structure
Fly ash and coal gangue
Characteristic curve and Moisture parameters
