1FREDLUND D G,MORGENSTERN N R.Stress state variables for unsaturated soils[J].J Geotech Engrg Div,ASCE,1977,103:447 - 466.
2FREDLUND D G,MORGENSTERN N R,WIDGER R A.The shear strength of unsaturated soils[J].Can Geotech J,1978,15(3):313 - 321.
3ZIENKIEWICZ O C,HUMPHESON C,LEWIS R W.Associated and non-associated visco-plasticity and plasticity in soil mechanics[J].Geotechnique,1975,25(4):671 - 689.
4MATSUI T,SAN K C.Finite element slope stability analysis by shear strength reduction technique[J].Soils Found,1992,32(1):59 - 70.
5GRIFFITHS D V,LANE P A.Slope stability analysis by finite elements[J].Geotechnique,1999,49(3):387 - 403.
6DAWSON E M,ROTH W H,DRESCHER A.Slope stability analysis by strength reduction[J].Geotechnique,1999,49(6):835 - 840.
7UGAI K,LESHCHINSKY D.Three-dimensional equilibrium and finite element analysis:a comparison of results[J].Soils Found,1995,35(4):1 - 7.
8CAI F,UGAI K.Numerical analysis of the stability of a slope reinforced with piles[J].Soils Found,2000,40(1):73 - 84.
9CAI F,UGAI K.Numerical analysis of rainfall effects on slope stability[J].Int J Geomechanics,ASCE,2004,4(2):69 -78.
10LANE P A,GRIFFITHS D V.Assessment of stability of slopes under drawdown conditions[J].J Geotech Geoenviron Eng,ASCE,2000,126(5):443 - 450.