Study Of Numerical Analysis Of Cut Slope Stability Of The Western Mountainous Regions

Along with the fast development and steadfast executing of the Western Region Strategywhich is conducted continuously by NPC and CPPCC, construction paces of western regionshave been speeded up and large road constructions have been started. The constructions ofhighway engineering and many cut slopes such as deep digs and high embankments duringthe process of the formation of constructions have constituted a serious threat to theenvironment of weak western mountainous regions. By using the method of Finite ElementStrength Reduction and with the core ideas constructed with “Correctly judging standard+Appropriated yielding criterion+Efficiently technological mean”, this paper has had athoroughly analysis to the stability of the cut slopes of Western regions.The slope destabilization mechanism has been explained from the aspect of the dynamics.They are coupled effect of inner dynamics, outside dynamics and manual dynamics whichlead to the unbalance of the environment of mountain power system in western mountainregions. The destructions of mountain power system caused by the deep digs and highembankments lead to the destabilization of slopes and disasters.By detailed and comparatively researches to the method of slope stability quantitativeanalysis, we can conclude that the Finite Element Strength Reduction Method is muchsuperior in solving stabilization problems of complex geologic condition over LimitingEquilibrium Method and can directly reflect the process of plastic zone and slope instabilityof deformation form. It has several influences and restrictions to the finite element calculationaccuracy and researching by using the Dutch large finite element analysis software MIDASGTS. Such as qualitative and quantitative comparisons and corresponding conclusions afterrepeated tests. Based on the summarizes of historical achievements of Finite Element StrengthReduction Method which are used as standards of slope destabilization of slope stabilityanalysis and by integrated predecessors’ conclusion, we put forward a standard of slopedestabilization judgment.It provides the theoretical basis of slope destabilized prevention andcontrol methods through meticulous compared factors of stabilized cut slopes in vectographof displacement and graph of Plastic strain cloud area by MIDAS GTS. By using thecomprehensive determination tothe method of slope destabilization along with the largeAmerican collection analysis software ANSYS, the Landslide group of Hejiafen village hasbeen comprehensively treated. As well as the contrast verification of the limit equilibriummethod, the practical and applicability of this theory system have been proved.Based on the formal discussions and after repeatedly different software tests demonstrations with the comprehensive treatment of the engineering practice, we proposedprevention countermeasures of cut slope hazard prevention with “Three Policies” and “SixMeasurements”...