肯尼亚黑棉土胀缩等级判定方法研究

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。

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

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.