Internal Force and Deformation Characteristics of a Circular no-embeded Diaphragm Wall of Swirling Pool

Abstract:

Based on the theory of elastic thin plate, the internal force and deformation of a special retaining structure-circular no-embeded diaphragm under lateral soil and water pressure during excavation of circular swirling pool were studied. The characteristics of internal force and deformation of the circular diaphragm wall structure with two kinds of different boundary conditions at bottom -free or fixed were analyzed. The influence of wall thickness, radius, height and elastic module on its internal force and deformation were also studied. Results show that, under lateral soil and water load, the internal force of diaphragm wall is dominated by the circumferential force, while moment and shear force are relatively small. When its bottom was fixed, the maximum deformation of the wall appears near its bottom. Compare to other parameters, the parameter radius R influence the internal forces and deformation strongly. This article also gives some suggestions on the design of circular no-embeded diaphragm wall of swirl pool.