钙质页岩路堑边坡顺层滑坡分析与防治

合福铁路某区段钙质页岩边坡顺层滑坡,经过对顺层滑坡工点钙质页岩地貌、构造、岩性、风化、水文特征及施工影响等方面的综合分析,得出滑坡形成原因,并据此对其采用综合防治措施。通过施工后长期的变形监测及季节考验,该区段边坡稳定,处理效果良好。特殊地貌构造产出的钙质页岩,易产生岩层断裂及顺层滑动,施工时需分级刷坡支护,坡脚支挡结构应分段开挖施工。

Analysis and Control of Landslide of Calcareous Shale Cutting Slope

In view of the landslide of one section of calcareous shale slope on He Fu Railway,a comprehensive analysis is conducted to root its causes in perspective of the landform, structural,lithologic,weathering,and hydrological conditions,and corresponding measures are taken. The long term observation of deformation shows that this section after construction is stabile and the treatment is effective. The calcareous shale in special geological area is likely to generate bedding slide and rock fracture,and the calcareous shale bedding slope should be graded with necessary support during construction,the slope retaining structure should be excavated in sections.