路基工程Issue(6)：85-89,5.DOI:10.13379/j.issn.1003-8825.2017.06.18
某高速公路路基红色泥岩微观结构试验研究
Experimental Study on Microstructure of Red Mudstone in Highway Subgrade
许天祥 1李元松 2肖尊群 2司马丹琪 2张家铭3
作者信息
- 1. 中交第二公路勘察设计研究院有限公司,武汉430052
- 2. 武汉工程大学资源与土木工程学院,武汉430073
- 3. 中国地质大学工程学院,武汉430074
- 折叠
摘要
Abstract
A study on mesostructure of red mudstone in a highway subgrade was made.Firstly,X-ray was used to analyze the spectrum of red mudstone and mudstone residual soil with different weathering degree.The results show that the clay mineral content in the muddy siltstone,magenta mudstone and red silty mudstone is 45 ％,64 ％ and 50 ％ respectively.The clay minerals of different types of mudstone are different in species and quantity,leading to obvious difference of engineering properties.Then,electron microscopy scanner was used to observe the microstructure of muddy siltstone,magenta mudstone and mudstone residual soil.The results show that the degree of weathering of red mudstone is closely related to mineral composition and microstructure.Rock weathering changes its microstructure,thereby affects the macroscopic physical and mechanical properties of rock.关键词
泥岩/黏土矿物/细观结构/X射线衍射/电镜扫描Key words
mudstone/clay mineral/mesostructure/X ray diffraction/electron microscope scanning分类
建筑与水利引用本文复制引用
许天祥,李元松,肖尊群,司马丹琪,张家铭..某高速公路路基红色泥岩微观结构试验研究[J].路基工程,2017,(6):85-89,5.
