The Slope Supported By Anti-slide Piles Of Rainfall Infiltration Analysis

Slope stability anasys is an important research topic in the field of geotechnical and civilengineering,analysis the slope stability problems correctly is the great significance tostrengthen the guidance of the project construction, and ensure the safety of people’s life andproperty.Anti-slide pile is an important means to support the slope with its great influence onthe stability of the slope rainfall infiltration, it can defend the landslide thrustto effectively toimprove the stability of the slope, and has good economic benefit. Rainfall is one of theimportant cause of slope instability, the rain falling on the slope surface impact kinetic energy,the rain infiltration can reduce the intensity of geotechnical parameters, reduce the shearingstrength of the slope.In this paper, the seepage and the research status of anti-slide pile slopestability at home and abroad were summarized. This paper expounds the slope anti-slide pilesupporting technology, introduces several kinds of commonly used bolting type.On the basisof summarizing the predecessors’ research results, combined the strength reduction principlewith ABAQUS, considering fluid-structure interaction and contact, established anti-slide pileslope infiltration numerical model to analysis the study of slope stability analysis. The mainresults are as follows:(1) By rainfall infiltration of slope safety factor calculated strength reduction theoryABAQUS finite element analysis model, the safety factor and the reason being calculated(based on the traditional Swedish slice method and Janbu method) were compared and foundthree very close to the value of the change, to verify the infiltration of rainfall slope modelbased on strength reduction theory applicability in ABAQUS software.(2) Length on slope stability analysis through the rain, found that with continuous slopesafety factor rainfall time appear more obvious decrease.24h after the rains, the safety factordropped to1.022, when the rainfall reaches72h, rainwater infiltration greatly reduces theshear capacity of the soil, with the increased infiltration depth, slope stability tends moredangerous, the safety factor drops more substantial only0.875less than1.0, indicating thatlong slope retaining a certain degree of stability while reducing the effect of rain.(3) Establishment of anti-slide pile slope infiltration finite element model of steadyinfiltration slope analysis. Studies have shown:1) The impact of long-time rainfall analysis,with the continuous rainfall slope soil saturation values began to rise, due to the impedimentpile, anti-slide pile on the left and right of the state to have a more obvious ladder;Due to theanti-slide pile role in the lower side of the pile of soil begins to form a new balance system, the newly formed small slope began a new slope angle stress. At the foot of the stresscontinues to increase, while the anti-slide pile at the side and top of the pile is also growingstress.2)Increase the anti-slide pile length can effectively curb the increase of the slope, themaximum displacement of the pile length growth with a decreasing trend in the emergence ofa nearby pile length shift focus. When the pile length exceeds a certain limit, the effects ofpile length of displacement has emerged weakened.3) By sliding pile set against the pilelocation analysis, we found anti-slide pile set at the slip surface, which can effectivelyprevent the displacement of soil, located in the middle of the sliding surface downwards, thelargest contribution to the other position gradually weakened, deviate slip surface iscontributing weak.4) Against sliding pile displacement and force were analyzed and foundthe upper pile bending deformation, maximum displacement pile, the performance of sheardeformation mode.