Safety Analyses And Evaluate Of Reinforced Segments Beijiang Levee

Foundation seepage, slope stability and deformation are the problems which we often encounter in the flood prevention, construction and running of the levee, it is also the key points we must deal with in the design and construction of beijiang levee reinforce project. The beijiang levee is very important and the foundation is so complex that it is necessary to have an impersonal analysis and evaluate on the segments of beijiang levee, which have been reinforced. Through the analysis and evaluate we can get some useful ideas on the next phase of design and construction of beijiang levee, it is also a very useful reference in the decision-making of flood prevention management.In the dissertation we have an analysis and evaluation on the representative segments of beijiang levee that have been reinforced. The dissertation carry through an analysis in three sides such as: embankment seepage analysis calculation stability analysis calculation of face water slope and embankment deformation analysis.The whole dissertation consists of six chapters, and the chief substances of each chapter are shown as follows:Chapter 1, have a brief description of beijiang levee reinforcement project and point out the main contents, purpose and meaning of the analysis.Chapter 2, making certain the parameters, which will be used in analysis and calculation, explaining the source of the parameters.Chapter 3, having an analysis and calculation of embankment seepage, I use a finite element software program, which uses stable-unstable seepage theory.Chapter 4, having an analysis and calculation of slope stability, use effect stress and total stress method, and through the program we can get the results of simple Bishop and Sweden arc method.Chapter 5, having an analysis of embankment deformation, use Kulun-Moore geotechnical constitutive model, consider the affect of the embankment deformation, which was caused by stage load in construction progress and the new filling founder sink.Chapter 6, have a summarizing of the above analysis and calculation and get some conclusions as fellow:If the seepage prevent measures work well all of the levee we have calculate will not occur seepage destroy, but if the measures invalidation some segments maybe occur destroy; Slope stability of beijiang levee, which have been reinforced is satisfy the criterion; There is a more big deformation occurs in 0+650 of ShiJiao embankment, and the result is accord with the phenomena that has happened in the construction, the deformation of other segments is satisfy the criterion. Advice in the rest process of design use finite element method to calculate, and adopt some new kinds reinforce ways.