Optimal Spatial Arrangement Of Anti-slide Pile And Slope Safety Monitoring

The anti-sliding piles are widely used in the reinforcement engineering of slopes and mitigation and prevention of natural geological disasters induced by landslides. The spatial distribution of Landslide is usually arc-shaped in Cutting Highway Slope. As well, middle of the landslide volume is large and both sides of the landslide volume are small. However, more research about the location and spacing of piles has been directed against a certain cross-section of the slope and lesser consider rational arrangement of anti-slide piles. In addition, monitoring of the slope and reinforcement are an important guarantee for realization of construction information technology. Focus on spatial arrangement of the anti-slide piles and safety monitoring of the slope, this paper includes the following contents:(1) A reasonable location for anti-slide pile of slope section is discussed by three-dimensional finite element model using ABAQUS finite element software. On this basis, it can be concluded that the optimal location of anti-slide pile is between the center of slope and critical slip surface by two-dimensional finite element model, which is much closer to the center of slope.(2) It can be simulated that landslide volume of the middle is square and the both sides are small by Homogeneous model of arc slope. The way to decide the optimal position of anti-slide pile is obtained. First, the optimal elevation of anti-slide piles is determined. And then the spacing of anti-slide piles is determined. The anti-slide pile can be non-spacing layout which can be taken to middle-intensive and sides-sparse arrangement to resist sliding of the upper soil.(3) In this paper, the safety monitoring of surface displacement, deep displacement and anti-slide pile based on SHUI Zuitou slide during construction period. It is discovered that surface displacement and deep displacement have a larger increase with some new cracks posterior edge of the slope affected by slope excavation and anti-sliding pile construction. When the anti-sliding pile used to retain shallow displacement is completed and the front soil of landside continues to be excavated, there is still a large displacement growth in the anti-sliding pile top and the back edge in the displacement monitoring process of a slope under construction. Through comprehensive analysis. An early warning forecast is timely made to the slope.(4)According to the slope actual terrain, geological information and reinforcement measures, finite element analysis model is established and displacement of shallow and deep slide is simulated respectively. With the comparative analysis of measured value and simulated value, it can be determined that the slope displacement is caused by the deformation of deep sliding. Deep-slope surface is located at the lower of the anti-side pile, and two rows of anti-piles are floating on the sliding surface soil layer above. Based on the numerical simulation results, and the measured date, the depth of the later part of construction of the anti-slide pile is adjusted. In this way ,the anti-pile can be ensure to access stable rock, and avoid having a further deformation of landside, and guarantee the project be carried out smoothly.