扩底楔形桩竖向抗压和负摩阻力特性研究

孔纲强，杨庆，年廷凯，胡庆春

Study of characteristics of compression capacity and negative skin friction for belled wedge pile

KONG Gang-qiang, YANG Qing, NIAN Ting-kai, HU Qing-chun

岩土力学 . 2011, (2): 503 -509 .