铁道标准设计Issue(2)：23-26,27,5.DOI:10.13238/j.issn.1004-2954.2015.02.006
宝兰客运专线强湿陷性黄土水稳性试验研究
The Study of Water Stability of Collapsible Loess in Baoji-Lanzhou Passenger-dedicated Railway
摘要
Abstract
The water stability of Collapsible Loess in Baoji-Lanzhou Passenger-dedicated Line is studied with disintegration test and unconfined compressive strength test. The results show that the compressive strength of Collapsible Loess in Baoji-Lanzhou Passenger-dedicated line is declined rapidly with poor water stability. When the compactness of soil samples is about 100%, the time of disintegration is only 35~40min, meanwhile, with the increasing of the compaction, the height of capillary water is increased which accelerates the rate of disintegration and improves the permeating-resisting performance. The stress-strain curve of the soil samples before and after saturation demonstrates strain softening. The difference of the unconfined compressive strength of the soil samples before and after saturation reaches 295. 0 kPa, and the strength attenuates about 77. 1%.关键词
宝兰客运专线/黄土/水稳性/压实度/崩解试验Key words
Baoji - Lanzhou passenger-dedicated railway/Loess/Water stability/Compactness/Disintegration test分类
交通工程引用本文复制引用
叶朝良,刘尧军,李青,白金州..宝兰客运专线强湿陷性黄土水稳性试验研究[J].铁道标准设计,2015,(2):23-26,27,5.基金项目
国家自然科学基金项目(50978172) （50978172）
铁道部科技研究开发计划项目(2010G018-B-4) （2010G018-B-4）
