Study On The Retaining Structure Optimization About Steep Embankment Slope

With the rapid development of economic and infrastructure for large-scale, land has increasingly become the most scarce resource. Especially in coastal areas, have to a lot of use of the sea surrounded the sea is prohibited or modification of natural slope to secure construction space, in construction process formed a large number of steep embankment slope.The stability evaluation and making reasonable measures to ensure the security of the slope and the upper construction (structure) has become an urgent problem.This thesis takes the slope of the Dalian CREC·NuoDe Coastal Gardens venues as the research object, on the basis of investigation of the wild scene and detailed analysis of existing material, explore the various factors affect the slope stability in depth.To ensure slope stability and security as the goal, study on the retaining structures optimization to provide reference experience for the similar projects in this region. The concrete contents are as followed:(1)On the basis of engineering geology investigation of the aera in which construction venues and detailed analysis of existing material, described in detail the geology environmental conditions of the slope.(2)According to associated related situ test, structure surface statistics and laboratory test of the soil and rock on the construction venues, accurately mastered this site slope engineering geological characteristics,then detailed analyze the various factors affect the slope stability.(3) Combined the planning the transformation scheme of the slope, analyze the characteristics of all levels slope after transformation and classify according to the height of the various levels slope.Then, put forward the assumptions and ideas of the slope prevention and treatment scheme.(4)Focus on and analyze the high 26m (of which fill height 24.5m) vertical artificial embankment slope, study on the retaining structures optimization between the anti-slide pile and pre-stressed anchor anti-slide pile. Respectively use limit equilibrium method and finite element of the shear strength reduction to analyze the mechanical characteristics of the two retaining structures, compare the difference between their Internal force. Then choose the stress result which relatively close to the actual conditions to design the structure.