The Anti-slide Pile Position Problems Of Slope Governance And The Application Of Shugang Road In Chongqing

With a certain slope. With the rapid growth of the national economy, publicfacilities and infrastructure flourished, analysis stability of slope and design of itbecome more and more important. There are a lot of slope stability analysis methods,butdifferent analysis methods have different results.In slope treatment,anti slide pile is acommonly used method.However,how to determine the longitudinal position of theanti-slide pile and the anti-slide pile spacing,there is not a unified calculation method atpresent.Therefore,it is significant to research on slope stability analysis and optimizedarrangement of the anti-slide pile location.There are many methods for analysis slope stability, home and abroad have a lot ofresearch in this field, In this paper, the characteristics of rock slope soil, by comparingthe advantages and disadvantages of FEM and limit equilibrium method, selection ofFEM to analysis stability of slope is more reasonable, and Prestressed Anchor Pile wasused to reinforce the slope. For the current research on soil arching, pitch piles is stillhave no uniform calculation method, based on the previous studies, this paper deeplystudy of anti-slide pile design, the main research results are as follows:①Theoretically compare the advantages and disadvantages of limit equilibriummethod and FEM of slope stability, combined with characteristics of engineeringexamples, the strength reduction FEM was used to analysis stability of slope.②In the design of anti-slide pile, by analysis of FEM software, using strengthreduction to calculate the maximum displacement position threshold slope (safety factorof1). Compared the bottom, middle toe, and the maximum displacement of the largestregion in the same slope displacement fight anti-slide pile, modeling and analysis,results in displacement of the biggest hit bottom stabilizing piles best, economical, andsecurity, construction is also convenient.③This article is derived the relationship between anti-slide pile space L, archheight h, internal friction angle, pile width a, cohesion c and load q behind thepile. By calculating, certificates of analysis with engineering examples, in all othervariables remain constant, pile space L and a, c is proportional relationship, and q is inversely proportional. Through analysis, soil arching and pile space have greatrelationship: when the pile space is less than triple the net wide pile or7times greaterthan the width of the pile, arching effect is not obvious, or does not exist; when the pilespace is more than triple the net wide pile and less then7times the pile width, Soilarching effect is obvious,with the pile space increasing, soil arching effect is moresmaller.④The use of anti-slide pile spacing own derivation formula,determining of antislide pile position finally.⑤Finally, as with Shugang Road project examples, after comparing single-row anddouble-row piles pile design method, analysis and comparison of safety, economy andconvenience of construction etc., select single-row anti-slide pile to treatment slope.