Study On Reservoir Bank Slope Stability And Structural Characteirstics Of Overhead Slope Wharf Based On Water-Rock Interaction

After Baise multipurpose dam project running, the process of long-term soaking ofhigh water and cyclical fluctuations of reservoir water level will have effect on YunnanFuning Port. The reservoir bank geotechnical physical properties will changesignificantly and thereby affect the whole stability of bank slope and terminal structures.In order to further quantify the analysis, which contain the change characteristics ofrock and soil physical properties, the slope stability change trend and terminal structuresmechanical characteristics change pattern under the water-rock interaction, the paperrely on the general-purpose berths in Funing Port first-stage and research the bank slopestability and the performance variation characteristics of the overhead slope wharf underthe circulation of reservoir water level. Then the paper puts forward an initialintegration model in accordance with the principle of coordination between the portgeological disaster control and the terminal structure function, so that it can provide areference for the similar projects designed.By means of researching and sampling, combining with the indoor mechanical tests,the paper analyzes and summarizes the variation of rock mass strength parameters anddeformation parameters. Using the finite element numerical simulation, it obtains amore systematic study and summarize about the mechanical characteristic of the naturalbank slope stability and terminal structures. The thesis and conclusions in this paper areas follows:(1) Based on the generalized water-rock interaction, the mode of action between theport rock mass and the water level cycles are discussed, and the pilot programs ofwater-rock interaction are designed. According to the collected test data for statisticalanalysis and engineering conversion, it has formulated the mudstone, sandstone andcohesive soil mechanics and deformation parameter regression model, while the damagedecay of the rock mass are analyzed, and the paper obtain the characters systemchanging characteristics of the rock mass in the water cycle.(2) Safety factors and reliability of bank slope in the reservoir are obtained by thefinite element strength reduction. Besides, the paper describes the stability evolutionand instability failure modes of bank slope based on the changes in the characteristics ofsafety factors and reliability. (3) Consider the interaction form of the pile and the rock mass, the contact analysisbetween the interfaces by using finite element analysis software have beenaccomplished. And the paper analyzes the overall performance changing characteristicsof overhead slopes wharf in the water-rock interaction. Some features-deformationcharacteristics of bank reservoir, deformation mode of the wharf structure, thehorizontal displacement of pile, the settlement of retaining wall and the moment, shear,axial force variation of the piles and continuous under different numbers of water cyclebeam-have obtained by finite element calculation(4) According to the bank slope governance and mechanical characteristics ofterminal structures, a study on the terminal structure forms is proposed, which putsforward some programs about the terminal reinforcement and improvement, and finally,a preliminary study of the integration based on the coordination between bank slope andterminal structure function.