Analysis On Seepage And Deformation Of Earth Rock Dam In Chushandian

Earth rock dam is the most widely used dam type both at home and abroad.With the rapid development of China's economy and the continuous passage of time,the number of earth rock dam construction has gradually increased,and more and more scholars have paid attention to the safety of earth rock dam.Among them,seepage analysis is an important problem in the research of earth rock dam.In this paper,the development status of seepage research at home and abroad is summarized,and the relevant theoretical basic knowledge is sorted out.By using the finite element method to analyze the seepage calculation principle and the specific implementation method,the similarity between the seepage field and the temperature field is compared,and the rationality of using the thermal analysis module of ANSYS software to analyze the seepage of earth rock dam is verified.In this paper,based on the design data of earth rock dam project of the reservoir,aiming at the seepage problem of earth rock dam,the ANSYS finite element analysis method is used to analyze the seepage and deformation of the dam,and the corresponding calculation command program is compiled.In the seepage analysis and calculation,the elevation,seepage flow and hydraulic gradient of each seepage overflow point under three working conditions of normal water level,design flood level and check flood level are calculated.By comparing the calculated values in the relevant design data,it is found that the design of the excavated rock dam meets the requirements of seepage stability.During the deformation analysis and calculation,the layered filling in the construction process and the normal water storage period are simulated The stress nephogram of each working condition is calculated under three working conditions,i.e.level,design flood level and check flood level.Through the analysis of the results of stress and strain,it is found that the distribution law of stress and deformation can meet the stability requirements of the dam body in the process of simulation construction layered filling;under the three working conditions of normal water level,design flood level and check flood level in the impoundment period,the horizontal displacement changes little,and the vertical displacement changes can meet the corresponding engineering design specifications,and the stress changes The regularities are still in accordance with the actual requirements,and the self weight of the dam always occupies the main position.The calculation shows that the seepage and deformation of the earth rock dam of shushandian reservoir meet the design requirements with high stability and safety,and the design scheme is feasible.The design scheme and seepage and deformation calculation scheme provide reference and guidance for other projects...