Numerical Analyse For The Interaction Between Stabilizing Pile With Anchor Cable And Earth

Stabilizing pile with anchor cable has been an effective measure. But, due to the complexity of the interaction for between pile system and landslide, its computational methods are not still very reasonable, presently. A new kind of method is put forward, which analyses the interaction by nonlinear FEM on intensity discount, and educes some significant conclusions in this paper.According to the special stratum condition,soil parameter,pile frame system in the protecting landslide of HongTian JianFeng in Yongan city in Fujian Province, compile a FEM program of plane strain and analyze the interaction by nonlinear FEM on intensity discount. In the program, Duncan-chang model is applied to earth, elasticity model is applied to pile and rock; Goodman element is set between pile and rock-earth and applied to simulate sliding plane and flexible floor; sequential pole elements with original stress are applied to anchor cable. Simulates the interaction between pile and earth during the processes of the whole construction in the protecting landslide and the slope condition is worsened later. According to calculating and analysis, educes the distributing laws and their correlations of horizontal displacement and stress of stabilizing pile, anchor pull and earth press in two sides of pile, including the distributing of point repel force and internal force of pile at the terminal state, providing full theoretical basis for anchor cable and stabilizing pile structure design, strength check, stability check and determination of anti-slide force for a single stabilizing pile. A new kind of method of calculation and analysis for stabilizing pile with anchor cable is put forward in the paper.The problem for the interaction between pile and earth not only involves many factors but their connections are very complex. In order to discuss the similarities and differences of the interaction in different terms, adopt single factor alteration method to analyze it more in the paper. Discuss the influence each factor alteration makes the horizontal displacement and stress of stabilizing pile from three aspects, earth parameter of sliding plane(C,), anchor cable parameter( pres-tress,stiffness), pile parameter(burying deep,space between), ascertaining the main factors that influence stabilizing pile with anchor cable. By the calculation and comparative analysis of twenty-three design projects, the sensitivity degree that stabilizing pile with anchor cable does each influent factor is made certain, providing some useful references for the design and optimization of stabilizing pile with anchor cable in the project.