Stress And Deformation Simulation Of Earth-Rock Dam In Construction

The construction of reservoir can adjust and use water resources, remove harmful things and develop advantage,promote the national economy to develop and safeguard the peoplelife and property security. Until for 2000 year's end, the count of dams constructed by our country is 85000 , earth-rock dam accounts forabove 90%. The earth-rock dam is the historical most glorious dam.In the word, about earth-rock dam, the quantity is most, the volume is biggest, the altitude is highest.Along with enhancement of design level of modern earth-rock dam dam and fast development of construction technology, the design becomes perfect day by day , the construction quality also enhances in large scale. About the earth stone dam , the destructed instance because of stable and seepage becames more and more few, but the destructed instance because of crack which caused by Non-uniformity distortion is extremely universal. From this the leakage which brings creates the instance which the dambody destroys quite to be also many. In construction period, because of gravity, the earth-rock dam may produce subsidence ,crosswise andthe longitudinal horizontal departure. All tradition methods to compute stress-strain of earth-rock dam don't consider Influence of construction process, but add on the complete loads in one time. It don't tally real construction process. Therefore, this article based on ANSYS software, has realized the earth-rock dam construction simulation analysis. This article main work is as follows:1. Introduced the soil body distorts basic characteristic and modelling principle of several kinds of common soil bodies constitutive models , and introduced advantage and shortcoming in the project application aspect.2. According to the ANSYS software formidable function and Insufficient in soil ,according to models introduced before, designated Duncan -chang E-B model to compute earth-rock dam stress-strain in construction.3. Based on ANSYS software, make useof its two developments function, hasrealized Duncan - the E-B model , has completed the earth-rock dam stress-strain simulation in construction process , and has established the result post-processing procedure.4. In order to confirm the accuracy of procedure, this article has established an isotropic dam model, the computed result conforms to the general project reality. This article has also carried on the finite element computation of plate stone reservoir rock-fill dam, the computed result tallies the Nanjing Hydraulic Research Institude computed result.5. Unifies the Yanshan reservoir project example, carried on the construction process stress-strain simulation analysis of dam, has drawn up the stress and deformation isogram and special unit stress and deformation curve in construction process...