The Research On The Stability Of Road Slope Excavation To Slope Architectural

In recent years, the highway traffic of China has rapidly developed, whichpromotes the advances of road research and excavation. Due to the complexity of theurban environment, the way of the expansion of the road network by slope excavationhas used more and more widely, especially as Chongqing which is a city with quicklydeveloped economy and the complicated terrains. Recently, the stability analysis ofslope excavation on the upslope building has been a research focus in geotechnicalengineering field. The activity of excavation makes disturbances on the slope, whichwill directly affect the stability of slope and the forced deformation of slopearchitectural. During excavation, it’s necessary to make sure the stability of slope, andthat the slope deformation satisfies Technical Code for Building Slope Engineering(GB503300-2002), and that the pile foundation deformation satisfies Technical Code forBuilding Pile Foundation(JGJ94-2008),and that the forced deformation of slopearchitectural satisfies Technical specification for concrete structures of tallbuilding(JGJC-2010).Starting from excavation slope deformation, pile foundation deformation and theforced deformation of slope architectural,the numerical simulation of slope excavationis adopted in this paper by taking one slope framework structure for background, andthe main contents are as following.①On the basis of nonlinear theory of excavation slope and the present situationand the development trends the stability analysis of excavation slope and slopearchitectural, this paper researched catastrophic effects of excavation slope and themechanics equation of the pile foundation under the unloading.②A two-dimensional slope excavation model is established by using ANSYS thelife and death unit. This paper analyses comparatively the displacement and theequivalent plastic strain, and then arrive at the slope safety factor of each excavationstage and the change rule.③By establishing three-dimensional coupled model of slope and slopearchitectural,this paper analyses the deformation of each excavation stage under thecondition of change in cohesion, angle of internal friction and elastic modulus, drawrelevant laws and determine the classification of conditions, contrasts the slopedisplacement,the forced deformation of pile foundation and slope architectural, andthen compares with code.