Research On Relevant Questions Of The Stability Of Slope Foundation

Building slope is a more universal type in mountain city construction, with the development of mountain city and exploitation of city land. Building slope plays an important role for main body of whole construction in argumentation of feasibility, normal operation, etc. It must be mentioned here that instability of slopes due to lack of cognition about failure mechanism of construction slope has resulted in huge loss for nation and people, whereas reasonable design and support of slopes evidently benefit people. Therefore, it is necessary to research deeply the stability of slope and its control.Stability analysis of building slope and foundation bearing capacity on it are deeply studied and some results with theoretical and engineering practical value are obtained. Main points of the paper are shown as follows:â‘ Failure model and stability criterion of slope foundation are carefully researched in the dissertation. For building foundation'safety and rock slope'safety, stability criterion of slope foundation is controlled by safety strength and deformation of ground building and slope. The paper summarizes controlling factors on stability of building slope.â‘¡According to the distance outer edge of building foundation from outer edge of slope top, calculation models are created and theoretical calculating formula for bearing capacity of slope foundation are gained. Through calculating model, some formulas are gained. The effect of change of slope angle on foundation bearing capacity is analyzed through elastic - plastic theory. The paper discusses stress distribution of slope foundation.â‘¢Applying the FEM, by using overloading method, numerical modelling of slope foundation is done. The paper analyzes slope plastic zone under different loading coefficient, distribution of major principal stress and minor principal stress in unstability state. The paper compares bearing capacity of slope foundation according to different distance outer edge of building foundation from outer edge of slope top and different slope angle separately and gets variation characteristics accord with conclusions from theory analysis.â‘£This paper analyzes influence on bearing capacity of slope foundation after strengthening slope foundation through engineering project and elaborates formation mechanism and methods of slope foundation strengthening. Combining the design of building slope foundation and the design of slope protection project, the paper analyzes control factor of influencing monolithic stability between building slope foundation and slope.