The Study Of Slope Stability And Support Way At Dingbian Youfangzhuang

Side slope engineering involves many aspects of railways,,construction,water conservancy,highway,good slope stability analysis and find a reasonable way to support important research target slope.This paper relies on a given side YouFangzhuang slope engineering as the research background,the system analyzes the various methods of governance slope,focusing on the various supporting ways to explore the slope of governance,combined with the project now more widely used skid piles supporting a comprehensive analysis and research;using ABAQUS finite element numerical simulation methods are discussed from the following aspects:(1)According to the investigation report of the project,the characteristics of the slope up to the main section selected for the study,using ABAQUS finite element model of the corresponding section of the main,and draw the appropriate safety factor and simulation based on strength reduction of slope Search the exact position of the sliding surface;discusses the slope instability basis for judgment.The safety factor and limit equilibrium finite element method to calculate the comparative analysis,the safety factor of the slope.(2)Analysis of the main factors of the slope and slope cutting two major rainfall,the impact of long-time simulated rainfall on slope stability;when the rain 24h,the safety factor dropped to 1.15,when rainfall reaches 72h,a safety factor of 1.09,while strength parameters of rock and soil slope with rain infiltration decreases,so the engineering design reasonable cross-sectional drainage is necessary technical means.Introduction of system theory,the effects of different body parameters for soil safety factors were sort of gray relational degree.(3)The establishment of a three-dimensional model for stabilizing piles supporting the project were different embedded depth,pile diameter,pile spacing,laid anti-slide pile and factor of safety position in case of the analysis,draw reasonable layout single stabilizing piles row position 0.35?n ? 0.55 when the treatment effect is obvious.Landslide safety factor first with increasing pile diameter increases,and finally stabilized;Friction Pile maximum bending moment occurs around the sliding surface,and the maximum shear occurs in the deep portion of the sliding surface from a certain distance;stabilizing piles embedded into the solid stabilize soil depth of 0.5 to 1.0 times more reasonable when the thickness of the cover layer;via the analog "arching effect" reasonably come to the pile spacing within 6m of the project is more reasonable.(4)Establishment of a single row of double row piles and piles model and make comparative analysis of research in different piles double row spacing under internal forces found:When the row spacing changes affect only the size of the internal forces,the distribution of internal forces along the pile shape does not affect.Finally,the project to be stabilizing piles and slope cutting load shedding two schemes comparative analysis to identify appropriate support programs.The conclusions can provide references for similar projects in the region.