The Study And Analysis On Behavior And Stability Of Embankment Fill

Many engineering construction utilize embankment fill, for example: subgrade , abutment, retaining wall, foundation pad , base backfill and so on . It plays a critical role to investigate the engineering behavior and stability of embankment fill for the purpose of embankment's constructing and utilization safely.Author go over the number of papers about engineering behavior of embankment fill, summarize and analysis the mechanism of compacted soil. The embankment fill which is from the engineering example (High embankment engineering for workshop of clarifying sewage in WuShan , ChongTSing .It locate in Three gorges dam reservoir zone ) was transport to laboratory in order to simulate compacted soil. The direct and simple shear undrained unconsolidated shear were conducted in laboratory by the author himself.As we know, the coherence of compacted soil in UU tests is very high, generally as high as lOOKPa to 200KPa , So the coherence value can not be utilized to evaluate safety of as-compacted earth structure and have to be reduced for the further utilization . In the presentation, the author try to reduced the coherence value of compacted soil from the point of dilatancy mechanism.Also , Many papers on slope stability are investigated ,which is mostly on FEM based on strength reduction technology . Based on what have done by the predecessors , author write Fortran 90 FEM program utilizing strength reduction technology and summarize some problems in FEM based on strength reduction technology ,which is the effect in safety factor calculation imposed by criterion of slope collapse , dilative angle , two or three dimension effect and boundary condition under two or three dimension.