In recent years

the certain red mud dam appears cracking

water penetration and leakage of red mud. The side slope of dam body basically is on the critical stability state. When triggered by some disadvantageous factors

the dam may remain widespread landslide. Based on fully studying geological conditions and frameworks of soil layers in a heap of dam areas

existing condition and formation cause of cracking

deformation course and destructive trend and principal influencing factor of stability and with a plentiful numerical experimentation and simulation analyses

a full-scale plan for reinforcement including draining

improving soil property of slide zone

cutting slope for reducing load

pressing slope base inversely

reinforced support and slope protection with suspension net by spouting

is put forward. The simulation analysis for reinforcement by construction course proves that the comprehensive plan is scientific and reasonable.