Study On Dynamic Characteristics Of Fly Ash And Dynamic Stability Analysis Of Ash Lagoon

As a kind of special industrial waste of thermal power plant,fly ash holds the structure of fly ash storage in power plant.As an important structure of an electric power plant,the safety of ash storage can not be ignored.In order to prevent the dam from collapsing,it is very important to analyze its dynamic stability.In this paper,Xiangyang huanengshang’an power plant ash ditch library emissions of fly ash as the object of study,the indoor soil tests of fly ash were taken from the scene,focusing on the influence of consolidation ratio,confining pressure and relative density on the dynamic properties of fly ash,the main contents are as follows:(1)Study on dynamic characteristics of Saturated Fly Ash under vibration loads,Saturated Fly Ash in the relative density,different consolidation ratio and the confining pressure dynamic characteristics under different conditions,and the analysis of the dynamic modulus,damping ratio,dynamic influence factors and changes of stress.(2)In the study of the isotropic consolidation and isotropic consolidation conditions,growth pressure of three kinds of different relative densities and three different confining pressure of Saturated Fly Ash in three triaxial test in the process of fitting hole,suitable for the use of fly ash in pore water pressure mode.(3)Based on the above results,the seepage stability of ash dam are calculated and analyzed,and the equivalent linear viscoelastic model for dynamic response analysis of the ash storage base,and the total stress method for dam liquefaction analysis,evaluation of the dynamic stability of ash storage pool.