Design Method And Application Research Of Anti-slide Piles In Slope Engineering

With the continuous advancement of national infrastructure construction,the construction of railways and expressways has continued to develop,and various problems of slope engineering have begun to become prominent.When slopes are treated,problems such as tight schedules and many projects are often encountered,so how to quickly and efficiently Class problem solving is the primary task in the current slope management project.In the mountainous areas with geological environment,the traditional methods such as manual digging piles are used to control the slope problem.Although the anti-sliding performance is good,there are also many shortcomings: long construction time,large disturbance to the geological environment,and high accident rate.When using traditional means to control,slope instability often occurs,endangering workers’ lives and causing property damage.Therefore,designing a safe,efficient and economical treatment method for Guizhou mountain slope treatment project is the current research focus.With the acceleration of the national mechanization process,the application of circular anti-slide piles has also been rapidly developed,and its anti-sliding performance has also been greatly improved.The construction of circular piles has the following advantages: simple construction,high efficiency,omitting the support link There is no need to support the working surface.Therefore,it has been widely used in engineering such as slope pile foundation,but at present,there is less analysis of the force deformation during the use of circular anti-slide piles.This paper is aimed at a highway slope treatment project in Guizhou,combined with previous research experience,using theoretical analysis,on-site monitoring,numerical simulation means to carry out research work.The on-site monitoring is mainly for the monitoring and analysis of the actual working conditions on the site,and the results of this design are verified.The numerical analysis is carried out by FLAC3 D for simulation research.By adjusting various design parameters,the comparative analysis is carried out to obtain the optimal one.Design.This paper provides experience for the design of large-diameter circular anti-slide piles for slope treatment,and lays a foundation for subsequent research work.The main results of this paper are:(1)Analyze and compare the difference between manual digging pile and mechanical hole forming pile,and find that the advantages of mechanical hole forming pile are obvious: high construction efficiency,good safety,low cost,convenient and fast,and with the progressof mechanical level Improved,round piles can be used for large diameter digging,which can be widely used in large slope treatment projects.(2)On-site monitoring,the main content is to carry out monitoring and analysis of anti-slide pile data after the support work.The deformation is analyzed,and the force analysis is carried out.At the same time,the results of the numerical simulation are compared and analyzed.The difference between the field measurement and the numerical calculation is analyzed,which provides a reference for the subsequent optimization design of the support parameters.(3)The model corresponding to the field conditions was established by numerical simulation,and the reinforcement effect was analyzed.The influence of pile spacing,anchoring depth and pile diameter on the reinforcement effect was analyzed.The single factor method was used for the analysis.By observing the change law of the force and deformation when the pile body parameters change,the optimal parameters are selected.The optimized reinforcement effect is analyzed by numerical analysis means,and the optimized scheme is compared with the original support reinforcement scheme to obtain the optimal scheme.