Experimental Investigation on Bearing Capacity of Novel Precast Cantilever Concrete Retaining Wall

Abstract:

To investigate the rationality and the effective connection mode of the superimposed surface of the superimposed type retaining wall, three types of new precast cantilever concrete retaining wall (the keyway superimposed type retaining wall, the truss bar superimposed type retaining wall and the spiral bar superimposed type retaining wall) were proposed. Static loading tests were carried out for three kinds of new precast retaining walls and two groups of control retaining walls. The results show that the deterioration degree of bearing capacity of the three new retaining walls is limited (within 15%) compared with the cast-in-place retaining wall. The superimposed type retaining wall is an effective mode of precast retaining wall, which has good applicability and feasibility. Among three kinds of the precast retaining wall, the truss bar superimposed type retaining wall has a reliable superimposed surface, strong crack resistance, good integrity, and better bearing capacity. Therefore, the truss bar is an effective way to improve the connection performance of the superimposed surface.