The Application Of Anti-slide Pile In The Treatment And Numerical Simulation

Landslide is a kind of global geological disasters, many countries in theworld have suffered harm. Our country is a large country, and about70%ofthe territory and complex topography and geology in the mountain areas,landslide disaster is frequent. As accelerating domestic modernization in recentyears, the construction of landslide disasters in more and more, it disruptedtraffic, destroy mines, blocking waterways, buried villages, causing casualtiesand huge economic losses. So to analyze the stability of the landslide, andcombining with the actual geological conditions to take appropriate controlmeasures is particularly important. And anti-slide pile because of its flexiblelayout, convenient construction, earthwork quantity is small, the advantages ofshort time limit, as a kind of important landslide prevention measures arewidely used.In order to study the influence of various parameters on the landslidetreatment engineering of anti-slide pile, this paper analysis on the stability ofthe landslide and anti-slide pile in detail in this paper, the basic theory research.At the same time, on the basis of many scholars studies, combining the reality of a certain coal mine in ShanXi landslide governance project using FLAC3D4.difference numerical simulation analysis was carried out on the slide modelingsoftware, by changing the anti-slide pile arrangement, the anchoring depth ofpile, two parameters, the slope excavation of surrounding soil and thedeformation of retaining structure research and analysis, concluded that thesize of the relevant parameters on its influence. In this paper, the main resultswere as follows:(1) Through the analysis of a mine site landslide engineering andcombining with the experience for the similar projects in the region, using thebasic theory of the landslide stability analysis and landslide prevention andcontrol, mechanism and stability of the landslide is determined.(2) Through the analysis and compare of a series of measures forprevention and control of landslide, ultimately determine the friction pile ofprevention and control measures. According to the basic theory of anti-slidepile design and software analysis and calculation, in combination with thepractical situation of the mining area of landslide to design of anti-slide pile,know the importance of piles in landslide treatment.(3) When the other parameters under the same conditions, the position hasmuch effect on the landslide anti-slide piles. Pile position is too high can’teffective prevention and control of landslide, but the pile arrangement in thelowest place at the bottom of the landslide thrust is not the most appropriate.So, in order to make full use of landslide anti-sliding segment and ensure the anti-slide pile in the most unfavorable sliding surface have a reasonable depth,generally in the thrusting force distribution curve inflection point to landslideexport cloth pile is quite reasonable. In this model, through simulation analysisof the anti-slide pile arrangement in35m,70,105m from the top, to verify the2-2section of this project period of the design of anti-slide pile arrangement inthe70m from the top is reasonable.(4) Anti-slide pile into the anchoring depth, sliding surface is directlyrelated to the pile of landslide prevention and cure effect. Anti-slide pileanchorage depth too hours, landslide displacement increasing, cannot achievethe effect of landslide, but when the anchoring depth increasing over a certainrange, although has reached the control effect, but the increase of slip effect isnot so obvious, and the high cost is not economic. Take general anti-slide pileanchorage depth diameter3to4times more reasonable anti-slide piles. Bytaking the anti-slide pile anchorage depth respectively from1to5times thediameter of simulation analysis, finally knowing anti-slide pile anchoragedepth in the diameter of the anti-slide piles3-4times is more reasonable.