Application Study of the Ram-compaction Piles with Composite Bearing Base in Some Construction

In recent years, with the rapid growth of china' s economic, the infrastructure has been widely expanded to meet the requirements of the building design. Pile foundation has been more widely used than before. Various kinds of new forms of piles turn up. Ram-compacted pile with bearing base is one of them, it uses construction waste as the filling material and use hammer long and thin to pound the filling material compacted so as to form a bearing base at the bottom of the pile. It can not only significantly improve the resistant stress, but also dissolve the construction waste and save costs. Ram-compacted pile with bearing base is a pile with high cost-effective which can satisfy the need of sustainable development. The paper takes the underground engineering and tunnel fire protection laboratory in Dujiangyan as a typical construction. A systemic study on the resistant stress properties and the application of ram-compacted pile with bearing base is executed through field test, theoretical analysis, and numerical simulation.