某市政道路滑坡稳定性分析及治理措施研究

Stability Analysis and Control Measures of Landslide along a Municipal Road

通过现场踏勘与地质勘察,分析了某市政道路滑坡的物质结构特征及变形原因。运用Geo-Slope之Slope/W软件建立滑坡地质力学模型,计算结果表明在正常工况下该滑坡欠稳定,在暴雨工况下该滑坡不稳定,亟需工程治理。根据滑坡特征,设计并验算了桩板墙支挡方案,计算结果满足规范要求。经过工后监测,该滑坡变形小于设计要求,表明该滑坡体得到有效治理。

The material structure characteristics and deformation causes of a municipal road was analyzed through on-site investigation and geological exploration.The geo-mechanical model of landslide was established with Slope/W software(Geo-Slope),and its calculation result showed that this landslide was understable in normal conditions and instable in heavy rainfall,thus required engineering improvement urgently.According to the characteristics of landslide,the sheet-pile retaining wall was designed and calculated with the result in line with the specifications.Depending on the post-construction monitoring,the deformation of landslide was below the design requirement,showing that this landslide was under valid control.