七里坡小学高边坡稳定性分析及生态防护治理

Stability Analysis and Ecological Protection Treatment of High Slope in Qilipo Primary School

在对七里坡小学高边坡进行勘探,查明边坡地质条件、稳定影响因素及节理裂隙特征的基础上,采用赤平投影法和极限平衡法对边坡进行了稳定性分析。分析结果显示,高边坡整体处于稳定状态,但在暴雨或连续降雨的不利情况下,边坡局部会逐渐趋于欠稳定状态,极易发生坡体前缘基岩局部崩塌和顶部土体失稳。根据该地区气候、环境及以往经验,提出采用锚拉式肋柱挡墙、锚索框架梁、排水与生态绿化相结合的综合措施对边坡进行防护,实施效果良好。

On the basis of exploring the high slope of Qilipo primary school, identifying the geological conditions of the slope, the influencing factors of stability and the characteristics of joints and fissures,the stability of the slope is analyzed by stereographic projection method and limit equilibrium method.The analysis results show that the high slope is in a stable state as a whole, but under the disadvantage of rainstorm or continuous rainfall, the local slope will tend to be under-stable, which is very easy to cause the local collapse of bedrock in the front of the slope and the instability of the top soil.According to the climate, environment and past experience in this area, the comprehensive measures of anchored ribbed column retaining wall, anchored cable frame beam, drainage and ecological greening are put forward to protect the slope, and the effect is good.