温控参数有限元法在边坡稳定分析中的应用

针对边坡稳定分析中所采用的基于强度参数折减的有限元方法，提出利用温度场来控制强度参数的折减，大大提高了计算效率。两个计算实例表明，一定时步后?max / H，即节点最大位移对坡高的比值，会快速增加，建议取该比值在0.05～0.1之间的不收敛时刻或突变时刻对应的折减系数作为安全系数。

Slope stability analysis by finite element method using strength reduction controlled by temperature field

The slope stability analysis has been performed by finite elements using strength reduction controlled by temperature field. The calculation efficiency has been obviously improved. From some case studies, ?max / H, the ratio of the maximum displacement to the height of the slope, will be increasing rapidly at a certain time step. When ratio ?max / H is between 0.05 and 0.1, the reduction multiplier corresponding to the numerical non-convergence state or the ratio increasing rapidly moment is suggested to be the safety factor of the slope.