The results indicate that high failure probability of benches is primarily depended on inherent variability of strength,anti?weathering ability and hydro?physical properties of moraine soil.

• 分析结果表明,台阶边坡破坏概率较高,主要是由冰碛土强度的固有不确定性、抗风化能力以及水理性质决定的,而边坡结构因素对其影响不显著。