边坡工程中抗滑桩的设计方法及应用研究

Abstract工程硕士学位论文AbstractWith the advance of infrastructure such as highway and railway in Guizhou Province,the tight construction project and construction of the project and other issues have becomemore and more obvious,So how to deal with slope stability quickly and efficiently,it hasbecome the hot and difficult problems in the current slope management projects.Due to moremountainous areas in Guizhou Province,Terrain complex,although it has good anti-skidperformance by using traditional artificial digging pile,because of its long constructionperiod,to slope disturbance,prone to safety accidents and other shortcomings,Resulting inslope management projects often appear slope instability of the danger,to the people's safetyand property caused a huge threat.Therefore,the fast,efficient,safe and economical slopesupport structure is a development direction and research focus of Guizhou mountain slopecontrol project.With the development of mechanization in recent years,Round anti-slide pile have avery large upgrade in the anti-skid performance,At the same time,the circular pile in theconstruction process does not need to set the support,construction convenience,speed,do notneed to support the advantages of the face,widely used in construction pile foundation andother projects.But at present it is very understanding for the round pile of the the deformationcharacteristics.On the basis of previous studies,this paper takes the highway slope controlproject in Guizhou as background,to analyze the anti-slide pile force characteristics throughthe traditional calculation and on-site monitoring,And verify the rationality of circularanti-slide pile support,At the same time,combined with large-scale numerical analysissoftware FLAC3D to analyze the characteristics of large diameter circular anti-slide pile indifferent pile spacing,pile diameter and depth of anchor,etc.The optimal design parameters oflarge diameter circular anti-slide piles are analyzed,which provides engineering experiencefor the application of large diameter circular anti -slide piles in the slope engineering ofGuizhou Province,and also provides reference for the subsequent design.The main researchresults are:(1)Through the comparative analysis of artificial digging pile and mechanical pile,Itcan be found that the circular anti-slide pile with mechanical perforation is superior to therectangular artificial digging pile in the construction rate,safety,economy and convenientperformance,At the same time due to the development of mechanical equipment,circular pilecross-sectional size has been greatly improved,to meet the needs of large-scale slope