摘要
膨胀土(岩)因含较多的亲水矿物,在干湿循环条件下的胀缩特性易引发各种病害。以某铁路为例,分析膨胀土(岩)路基病害的主要表现形式及形成机理,有针对性地提出技术可行、经济合理的路基病害整治措施。膨胀土(岩)地区路基工点常见病害有基床下沉和翻浆冒泥,边坡冲蚀、溜坍和滑坡等。路基病害整治应分别从基床整治、边坡防护加固和防排水等方面综合考虑。
Swelling soil（ rock）, due to its large content of hydrophilic minerals, has swell-shrinking property under wet-dry cycling condition, resulting in various diseases. Taking a railway as an example, this paper analyzed the main forms and formation mechanism of diseases in swelling soil （rock） subgrade, and put forward the related treatment measures that have technical feasibility and economic reasonability. The common diseases in the subgrade construction site within swelling soil （ rock ） area include subgrade bed settlement, mud pumping, slope erosion, collapse and landslide, and the countermeasures of treatment should be considered from the aspects of subgrade bed treatment, side slope protection, and waterproof and drainage.
出处
《路基工程》
2014年第1期44-48,共5页
Subgrade Engineering
基金
国家自然科学基金青年基金(41202228)
关键词
膨胀土(岩)
既有铁路
路基病害
整治
swelling soil（rock）
existing railway
subgrade diseases
treatment
