[1] Zheng Yingren and Gong Xiaolan. The Basis of Plastic Mechanic of Rock and Soils,Beijing; Press of Chinese Architectural industry(1990).(in Chinese).
[2] Ying Zhongzhe, A stress-strain model of double yield surface of soils, Chinese Journal ofGeolechnical Engineering, 10, 4(1988), 64～71.(in Chillese).
[3] H. Matasuoka, et al., A constitutive model for sands and clay evaluating principal stressrotation, Soils and Foundations, 27, 4(1987), 73～88.
[4] F. Miaru, S. Toki, et al., Deformation prodiction for anisotropic sand during therotation of principal stress axes, Soils and FOundations, 26, 3(1986), 42～56.
[5] Sheng Zhujiang, A new stress-strain model of soil, edited by Luo Zhaojuan, et al., The5th Chinese Conference of Soils Mechallics and Foundation Engineering, Beijing: Press of Chinese Architectural Industry(1987), 101～105.(in Chinese).
[6] Zheng Yingren and Yan Dijun, Muti-yield surface model for soils on the basis of testfitting, edited by Zheng Yingren, et al., Tile sib Chinese Conference of Numerical andAnalysis Method in Geomechanics, Wanhan Press of Wanhan Science and TechnicalUniversity of Surveying(1994), 9～ 14.(in Chinese).
[7] Chen Shengshui, ShenZhujiang, et al., An elastoplastic model for cohesionless soils undercomplex stress paths, Chinese Journal of Geotechical Engineering, 17, 2(1995), 20～28.(in Chinese).