桩-岩石锚杆复合基础在架空输电线路中的应用

Application of Pile-Rock Anchor Composite Foundation in Transmission Line

结合山地地区存在上部为土、下部为岩石的地质情况,为解决桩基础人工开挖困难的情况,分析了桩-岩石锚杆复合基础,并初步提出其设计关键技术要点。通过与传统基础对比分析,结果表明:在满足承载力的前提下,桩-岩石锚杆复合基础的钢筋用量、混凝土用量以及施工速度均较传统基础有一定的优势。桩-岩石锚杆复合基础应用于高压架空输电线路时具有良好的技术经济效果,因此在工程应用中具有很好的推广作用。

In some mountainous areas,the geological condition is that the upper part is soil while the lower part is rock.In order to solve the difficulty of manual excavation in pile foundation,in this paper we analyzed the pile-rock anchor composite foundation,and put forward the key technical points of its design.Compared with traditional foundation,the results show that:under the premise of bearing capacity,the pile-rock anchor composite foundation is superior to the traditional foundation in the amount of reinforcement,the amount of concrete and the construction speed.Pile-rock bolt composite foundation has good technical and economical effect in high voltage overhead transmission line,so it has good promotion effect in engineering application.