A Calculation Method of Double Strength Reduction for Layered Slope Based on the Reduction of Water Content Intensity

The calculation of the factor safety (FOS) is an important means slope evaluation. This paper proposed improved double strength reduction method (DRM) to analyze layered slopes. physical properties different soil layers slopes are different, so single coefficient (SRM) not enough reflect actual critical state Considering that water content in natural main for soil, attenuation law shear clayey changing with fitted. also establishes functional relationship between coefficients. Then, a USDFLD subroutine programmed using secondary development function finite element software. Controlling field variables and time realizes applicable slope. Finally, by comparing results examples, it proved stress displacement distribution obtained more realistic, calculated reliable. newly considers difference intensity under conditions avoids disadvantage uniform parameters, which provides new idea stability analysis complex