肯尼亚黑棉土胀缩等级判定方法研究  

Research on Method for Determining Swell-shrink Grade of Kenya's Special Black Cotton Soil

作　　者：寇博[1,2] 张留俊[1,2] 尹利华[1,2] 

机构地区：[1]中交第一公路勘察设计研究院有限公司,西安710068 [2]陕西省公路交通防灾减灾重点实验室,西安710068

出　　处：《路基工程》2017年第3期10-14,共5页Subgrade Engineering

摘　　要：以肯尼亚内罗毕南环线黑棉土为依托,在介绍不同膨胀土胀缩等级判定方法的基础上,结合X衍射试验、阳离子交换量试验和室内土工试验结果,对黑棉土的涨缩等级进行了判定。在此基础上针对当地现状,提出了合理的黑棉土涨缩等级分类方法。Based on the black cotton soil of south ring road of Nairobi, Kenya, the authors introduce lots of expansive soil swell-shrink grade determination methods, and determine the swell-shrink grade of the black cotton soil by the X-ray test, cation exchange capacity test and laboratory geotechnical test. On the base of these results, the authors propose the reasonable method for determining the swell-shrink grade of the black cotton soil.

关 键 词：黑棉土 微观分析 阳离子交换 土工试验 胀缩等级 

分 类 号：TU443[建筑科学—岩土工程]