Anchor Anti-slide Pile System Model Pilot Study

The anchor ante-sliding pile system has been widely applied in engineering practice, however, with the complexity and uncertainty of environments (soil and rock) that resides in, so the present-existing designing method is to a great extent empirical. In this dissertation, on the basis of experiments of the anchor ante-sliding pile models, the author deals with the research of designing theory of anchor ante-slide pile for the single soil slope with the help of the qualitative analysis and quantitative calculation.The achievements in this dissertation are in what follows:(1) It analyzes the concrete applications of the anchor ante-sliding pile system in the engineering practice and the existing problems in its design, and makes a brief introduction to designing theories related to the anchor ante-sliding pile system.(2) It has obtained the acting force contribution graphs of the anchor ante-sliding pile for the single soil slopes in four probabilities on the basis of the relative experiments. After analyzing the acting force of sliding surface of the model piles, the author put forward the reasonable built-in depth of the anchor ante-sliding pile model in the normal condition and determines the range of the value, namely, within the passive earth pressure values between unsticky and sticky earth.(3) On the experiments, the author do some researches about the depth of the anchor ante-sliding pile for the single earth slopes in two separate elastic mechanics and slide-line methods. Through the analyses, the author points out with the limitations of mechanic unreal conditions, the elastic mechanic method can only help to obtain the inner stresses of the earth in the normal working condition and little deformality. On the contrary, being one numerical solution for the earth under the condition of the limit plastic and elastic destruction, therefore, the author thinks that the anchor built-in depth value obtained through this method for the single earth slope is of great value to reference.(4) By comparing and contrasting the analyzed results from the similar model experiments, the experimental results obtained by the author in his experiments for the anchor ante-sliding pile are quite close to pressure force contribution and the position of the maximum pressure under sliding surface in the literatures, which further tests the conclusion obtained by the author.