某高填方边坡稳定性分析与支护方案评价研究

为了准确分析郊纳镇#2高填方边坡的稳定性及支护方案，定性分析了其变形影响因素和失稳模式，采用极限平衡法及Geo-slope进行稳定性计算分析对比。结果表明:该#2边坡的影响因素有:岩土类型，填料特性、填筑工艺、地形地貌、降雨及地下水、人类工程活动。失稳模式为蠕滑-拉裂。稳定性计算为天然状态下基本稳定，饱和状态下不稳定，与现场实际情况相符。支护方案为在坡脚设置抗滑桩支挡，结合截、排水措施，坡面按一定坡率修整并分层压实、分级设置格构骨架护坡。

Study on Stability Analysis and Supporting Evaluation of High-Fill Slope

The stability of high-fill slope is always a major technical problem that affects engineering quality and safety. In order to accurately analyze the stability and supporting scheme of high fill slope, herein Jiaona Town Slope #2 was depended on to qualitatively analyze the factors influencing its deformation and the failure mode, and to calculate the stability thereof by use of limit equilibrium method and Geo-slope with comparison, then to discuss economic and proper scheme for supporting. The results show that, the factors influencing the Slope #2 include the type of soil and rock, filler characteristics, filling technology, topography and landform, rainfall and groundwater, human engineering activities; the failure mode is creep sliding-tension cracking; the stability calculations agree that the slope is basically stable under natural condition and instable under saturated condition, which coincides with the actual situation. The supporting plans to set up anti-slide piles at the toe of the slope, and combined with interception and drainage measures, to pave the slope as per a certain ratio and then compact in layers, moreover, to install lattice frame in stages for slope protection.