Stability Analysis For Metamorphic Complex Deformation Slope And Supporting Design Optimization

Baihe County is located in the southeast of Shaanxi province, east section of DabaMountains. Area of high mountains and steep slope, complex geological structure, fracturedevelopment, the rock is broken, Owing to the overall geological environment condition inthis area is very poor, with topography condition for geological disaster, landslide, debrisflow, collapse. Especially in recent years, global climate change, extreme weather eventsincrease, human engineering activity, lead to geological disasters, pose a major threat to thelives and property of the people.Relying on the project about Baihe High School, high metamorphic rock high slope asthe engineering background, extensive collection of and access to the region’s naturalgeography and geological environment data, analyses the causes of formation of Baihe highslope and deformation characteristics, using qualitative and quantitative analysis, numericalsimulation method to analyze and evaluate the slope stability. The Baihe high school sloperetaining the original design was optimized by using finite difference software, and theoptimized slope support scheme analysis and evaluation.First of all, on the high school slope of Baihe geological environment on the basis of theanalysis,4aspects separately from the morphological characteristics, rock and soilcharacteristics, hydrogeological characteristics, deformation characteristics the factors of theslope and the deformation characteristics, the river slope analysis for high school, middlesouth, north of the qualitative and quantitative determination of the natural state, the slopestability, and evaluation of the slope were simulated using the finite difference software, thefuture development trend of slope deformation forecast.Secondly, introduces and analyzes the White River high school unstable slope retainingthe original design flaws and shortcomings, after sliding force calculation and engineeringquantity calculation, unstable slope design is too conservative. This paper will focus on theslope of open poaching and prestressed cable design parameters to optimize the design of unstable slope in two aspects, which greatly saves the engineering slope safety and stabilityunder the premise.Once again, the slope after the optimization of open poaching and anchoring parameters,slope retaining the original design scheme is unstable to adjust and optimize the Baihe Riverhigh school. Finally, from the analysis of internal stress change rule of slope, analysis of theoptimized slope support scheme of finite difference software FLAC3D, and evaluation ofslope retaining design results, summarized in metamorphic rock area of slope supportingdesign theory and experience for engineering application.This paper studies the Baihe metamorphic rock slope is not only of theoreticalsignificance, but also has a certain practical reference value on the similar geological disasterresearch, disaster prevention and reduction and the resettlement policy.