Study On The Mechanism And Optimum Design Of Anchor Rope Anti-slide Pile

The anchor rope anti- slide pile is a new kind of retaining structure applied to anti- slide project in the recent years. But the theoretical research of the structure design lags to the project application until now. The structure design lacks the corresponding standard as its instruction, especially the research of global optimization design of the anchor rope anti- slide pile system. In view of this, the design theoretical research is extremely urgent. This thesis research the optimum design of the anchor rope anti- slide pile system on the study"Xunyang 2# Landslide Mechanism and Treatment research".The content of the thesis are as follows:(1) The thesis research the interaction between slope (slide)and anti- slide pile, and then, infer computational formula of the slope(slide) thrust force applied to the anti- slide pile. Through reasoning analysis, the author believes that the thrust force computational formula matched to resisting force compensation based on overload method is more reasonable used to resisting force computation of the anti- slide pile. And utilized the formula, Xunyang 2# landslide thrust force is computerized, and then, the result is contrasted and analyzed to the law. This confirms the rationality of the thrust force expression based on overload method. (2)Based on the existing theory (elastic foundation beam method) computerized the deformation and internal force of anchor rope anti-slide pile system, the deformation coordination condition between anchor rope and pile and anchor rope pre-stress loading scope is combined for the first time, anchor rope anti- slide pile design theory system is further perfected.(3) Due to ambiguity (either repetition or omission) of the formerly designed loading computerized process, the determined method of designed loading in anchor pile system is researched, the method of determination of partial coefficient of load and combination of load effect in load computation is proposed, the inner link between the pile hole wall protection and pile main structure is analyzed, the hypothesis of considering wall protection in lateral earth pressure computation of anti-slide pile normal and inclined section is proposed for the first time, and the correlated formula is revised.(4) Optimum designed theory is applied in the anchor rope anti-slide pile system , take the anchor rope anti- slide pile structure cost as the objective function, the optimum mathematical model is established in the anchor rope anti- slide pile system, and it is resolved through heredity algorithm and Matlab programming. It provides a new way for anchor pile system optimum.(5) Xunyang 2# landslide's treatment is designed applying the research results in the thesis, and contrast the results to the traditional methods, obtained the better economic efficiency. This confirms the theory in the thesis is right and rationality, so the optimum design theory of anchor rope anti- slide pile system is promoted.