Three Dimensional Finite Element Seepage Analysis Of Da Shi Jian Reservoir Project

At present,China’s economy is developing at a rapid pace,and the country’s investment in the water industry is increasing.This has made China’s water conservancy industry continue to develop.China’s demand for dam construction is also increasing,and standards are getting higher and higher.Building a dam needs to reach a new height.However,when the dam is in operation,it often encounters some uncertain factors,which causes a series of problems such as seepage and slope instability.The seepage of RCC has become an important research topic.Therefore,the seepage of RCC has become a popular phenomenon in China.At the same time,in the process of designing RCC dams,it is necessary to develop a reasonable anti-seepage measure.Therefore,the study of seepage and deformation of RCC dam in Da Shi Jian Reservoir Project can be of great significance to reservoir construction.Based on the design of the water level and the check flood level on the right bank of Da Shi Jian Reservoir,this paper firstly constructs a three-dimensional finite element model of the typical non-overflow dam section of the RCC gravity dam by ANSYS software,and then adds the mill.The concrete gravity dam is subjected to numerical simulation analysis of seepage under the two water level conditions of design water level and check flood level,and some data are obtained.Whether the dam is subjected to anti-seepage measures for seepage and stability analysis of the dam,according to modeling Calculate some data.On the basis of these data,the overall analysis and evaluation of the anti-seepage measures adopted by the Da Shi Jian Reservoir Project should be carried out.Some suggestions should be made for the optimization of the dam to prevent the seepage.The project has played a certain guiding role,and at the same time provided some basic theoretical knowledge and reference for the anti-seepage scheme setting and safety analysis of the dam project construction.The main conclusions are as follows:(1)Under the two conditions of research design water level and check flood level,the rapid reduction of osmotic water pressure occurs in the place where the anti-seepage curtain is installed.Since the RCC itself has a good anti-seepage effect,this can effectively reduce the lifting pressure of the concrete dam.At the same time,the curtain grouting on the dam foundation can also effectively reduce the seepage pressure of the dam itself,and correspondingly reduce the dam pressure.In the analysis of the design flood level and the check flood level in the right bank of the RCC,the maximum compressive stress and displacement of the RCC are within a reasonable range.(2)By studying the dam’s unsteady seepage,the stress and displacement of the RCC dam in Da Shi Jian reservoir meet the requirements of the regulations,and they are all within reasonable calculation range.Through the research in this paper,the analysis of the seepage field and deformation by the analysis of the seepage field and deformation under the condition of designing the water level and checking the flood level on the right bank of the Da Shi Jian reservoir project can provide a reasonable anti-seepage solution for the seepage prevention of the project.Provide a reference value for the project.At the same time,the reservoir’s anti-seepage measures can also provide guidance for the construction of other reservoirs.