Research on the Application of Double-Pipe Split-Grouting Anchor in Deep Fill Slope Engineering

In recent years, with the continuous development of China’s construction industry, the site selection of construction projects has become more and more complex, and more and more construction projects have encountered deep and complex filling problems. This paper is based on a project in the north of China, which is a deep and complex filling slope and the support form is pile-anchor support. Considering the risk of deep and complex soil filling on slope stability, in order to ensure the construction quality and safety, the double-pipe split anchor test is studied and analyzed. Through the comparison of engineering test, numerical simulation and actual monitoring data, it is shown that the scheme has a good effect on improving the quality of anchor, and has certain guiding significance for similar projects.