TY - Journal of Yangtze River Scientific Research Institute A1 - ZENG Zhi-xiong, TIAN Hai, HUANG Jue-hao T1 - Classification of Swelling-shrinkage Grade of Expansive Soils Based on Cloud Model Y1 - 2016-02-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 80 EP - 85 VL - 33 IS - 2 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20140787 ER -