Influence of filling sequence of concrete faced rockfill dam on deformation of squeezed sidewall and dam

During construction of concrete faced rockfill dam (CFRD), the extrusion-sidewall will be protruding or deficiency under normal. Before panel construction, local slope cutting should taken for squeezed side wall supplementary filling measures after excavating wall, which affect mechanical deformation panel. According to monitoring data concrete-faced dams some hydro-electric station in Hubei Province, three-dimensional finite element analysis method is used simulate original sequence process face dam. By comparing difference between and calculation results, law extrusion obtained, verifies rationality simulation The characteristic values settlement horizontal displacement obtained from numerical are compared with those other high dams. this close general two optimization schemes different studied. It found that if conditions permit, upstream filled first then downstream reduce upstream.