中文摘要：

对基于强度折减拉格朗日差分法的基本原理进行深入阐述,选用安全系数作为边坡稳定性设计标准。对一均质土坡建立数值分析模型以及灵敏度分析模型,分别改变全长注浆锚杆的六个支护参数,由FLAC3D计算边坡的安全系数以及支护参数对安全系数影响的灵敏度,以此分析这些参数对于边坡稳定性的影响。结果表明,所探讨的因素中对边坡稳定性影响显著的先后顺序是：锚杆长度、垂直间距、锚杆倾角、布设位置、锚杆直径、砂浆厚度。

英文摘要：

The fundamental of lagrangian difference method based on strength reduction is thoroughly expounded. Safety factor is chosen as the criterion of slope stability. A numerical simulation model and a sensitivity analysis model for an isotropic soil slope are founded. Six reinforcement parameters of the wholly grouted bolt are changed. Safety factors of the slope and the sensitivity of the impact of the parameters on the factors are calculated by FLAC3 D to analyze of the influences of the parameters on the stability of slope. The calculation results show that the parameters in descending order are bolt length, vertical spacing, bolt inclination, location, bolt diameter and grout thickness according to their influences on the stability of slope.