泥质粉砂岩与硅质灰岩地质条件下的护坡锚索施工工艺研究

Research on Construction Process of Slope Protection Anchor Cable under Geological Conditions of Argillaceous Siltstone and Siliceous Limestone

锚索施工是保留原有合格锚杆(索)框架基础的一种新型施工工艺,可有效避免对原坡的扰动,机械设备简单,对施工现场要求较低,还可以根据工程项目所在区域的地形地质条件灵活布置,进而形成统一的锚固体系。文章以广西柳江红花水利枢纽二线船闸工程土建Ⅲ标工程为例,主要介绍了强风化薄层状泥质粉砂岩与硅质灰岩互层等地质条件下锚索护坡施工过程中遇到的困难、处理方式、质量与安全控制措施。

Anchor cable construction is a new type of construction process that preserves the original qualified anchor rod(cable)frame foundation,which can effectively avoid the disturbance to the original slope.The mechanical equipment is simple and the requirements for construction site are low.It can also be flexibly arranged according to the topographic and geological conditions of the engineering project area,thus forming a unified anchoring system.Taking the civil engineering III bid project of the second-line ship lock project of Honghua Water Control Project in Liujiang,Guangxi as an example,this paper mainly introduces the difficulties,treatment methods,quality and safety control measures encountered in the construction process of anchor cable slope protection under the geological conditions of strongly weathered thin-layer argillaceous siltstone and siliceous limestone interbedding.