Finite Element Numerical Analysis of Stress Characteristics in Filling of Rockfill Dam with Clay Core
Taking the rockfill dam with clay core of Guzao Reservoir in Mengshan County as an example,the authors use the geotechnical engineering finite element software Plaxis 3D to simulate and analyze the filling process of the dam,and study the deformation and internal force variation of the dam under the conditions of adding bentonite and different rolling methods.The results show that:1)With the addition of bentonite and the increase of rolling times,the settlement of the dam decreases,and the effect of vibration rolling is better than that of static rolling;2)The incorporation of bentonite has almost no effect on the deformation of the grouting part of the dam foundation,the rolling method and the number of rolling times have obvious effects on the deformation and internal force changes of the grouting part of the dam foundation;3)After adding bentonite,the scheme of static rolling two times and dynamic rolling six times is adopted for construction,the deformation and internal force changes of the dam are within the controllable range,and the scheme is reasonable.The research results can provide theoretical basis for dam filling construction.
rockfill dam with clay corestress characteristicsfinite element numerical analysisinternal forcedeformationfillingGuzao Reservoir
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