ABSTRACT
With the development of the national economy, more and more construction projects involve complex filling areas, the soil instability and physical and mechanical properties brought by complex filling conditions are not easy to predicate, the reliability of foundation pit and slope support and the stability of support in the excavation process is increasingly prominent. A slope staining project in Beijing has a thick soil filling and a large difference in engineering properties. This project aims to control and improve the construction quality of anchorage under the condition of complex soil filling. The project adopts two ways of double pipe split grouting and intermittent grouting. The results show that the double pipe split grouting can effectively improve the construction quality of anchorage, while the intermittent grouting has no obvious improvement on the construction quality of anchorage.
