Superiority Analysis Of Prestress Anchored Anti-Slide Pile Based On The Finite Element Method

Because of the effect of groundwater, rivers, earthquake,artificial cutting,and the pull of gravity and other factors which produce a weak surface which is not enough to resist the shear strength of the surface,the landslide is a natural phenomenon,which wholly or partly slide along the weak surface. The landslide is called one of three global geological disasters (earthquake, floods, collapse,landslides and mud-rock flew),which seriously impact the state's property and people's safety.As the increasing development of western China,and the development of engineering technology, the prestress anchored anti-slide pile is more and more applicated in the landslide engineering.lt has been proved that the prestress anchored anti-slide pile,as a new kind of block structure, can obviously improve the structure's stress condition.and meet the need of the more complex slope. But, the prestress anchored anti-slide pile is still existing some faultiness in design. Based on the finite element calculation software, this paper analysis the force of prestress anchored anti-slide pile, and then put forward to the optimized design scheme of prestress anchored anti-slide pile.Firstly,this paper summary and analysis the causes,the classification and the down-force calculation of landslide,and then build the model of prestress anchored anti-slide pile and detailed analysis the internal force's calculation of the anchor and the pile.Secondly, because of relying on finite element calculation software, this paper simply introduce finite element method and software, and then explain that the method of finite element calculation are relatively reasonable. Finally, by using the finite element software, this paper analysis the landslide project of LanChengYu oil pipeline K0572+120, and design with the prestress anchored anti-slide pile for the landslide project. Comparing two engineering design, we can see the superiority of the prestress anchored anti-slide pile. Using different engineering parameters (the anchored depth of anti-slide pile, anchor rope's row number, anchor rope's tension, the section size of anti-slide pile), we can optimize scheme for the prestress anchored anti-slide pile engineering.