TY - Journal of Yangtze River Scientific Research Institute A1 - CHEN Jian-hong, LI Xiao-long, LIANG Wei-zhang T1 - PCA-ELM Model for Classification of Expansive Soil and Its Application Y1 - 2018-12-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 96 EP - 101 VL - 35 IS - 12 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20170674 ER -