Mechanical Performance of Anchored-Plating Cantilever Retaining Wall

Abstract

Because of complex construction and larger deformation of wall, traditional anchored-plating wall had been used limitedly. A new type of retaining wall, anchored-plating cantilever retaining wall was put forward to improve the self-stability and simplify the construction. In order to analyze the mechanical performance of the new type of retaining wall, a series of model tests were performed by considering of the variation of upload and prestressing force. And some cells were installed at different position of retaining wall to monitor the variation of lateral deformation of wall facing, lateral earth pressure behind wall, foundation pressure and cable force. Test results showed that there would be obvious redistribution of lateral earth pressure behind wall after applying pre-stressed force. Stress focus would happen around anchorage point. And also, the variation of lateral earth pressure and deformation was influenced greatly by the value of prestressing force. The higher for prestressing force, the higher for earth pressure was, and vice versa. Also, with the increment of prestressing force, the earth pressure would be close to even over the line on rest. At the same time, the variation of lateral earth pressure behind wall accords with the classical earth pressure theory. By analyzing the variation of deformation of wall face and foundation pressure, the stability of this type of retaining wall could be controlled well. But the prestressing force should designed in a rational scope.