Analysis On Slope Stability Considering Osmotic Pressure Using ANSYS

The rock side slopes are the most extensive buildings applied in the hydraulic engineering and geotechnical engineering, the seepage pressure of the slope bodies is an important factor that determines whether the rock side slopes can work normally. According to some investigations and statistics of the rock side slopes damaged and crashed, the damages ruined in seepage pressure have the very big proportion, even amount to 45percent. It is thus clear that the seepage pressure have the serious harmful to the stability of rock side slopes.The thesis puts forth effort in seepage pressure and stability analysis of the rock side slope, making use of the strong preprocessor and postprocessor procedures of the large-scale finite elements analysis software ANSYS, hopping to provide the reliable basis of design, construction and operation for the rock side slopes.The main contents of this thesis include:1. The seepage pressure analysis of the rock side slope. This thesis make use of the comparability of seepage fields and temperature fields with the help of software ANSYS. The seepage pressure P is added on the side slope as a volume force loading.2. The stability analysis of the rock side slope. Adopt the nonlinear elasticity-plasticity Druker-Prager model provided by the software of ANSYS. This thesis carries out the stress analysis of the rock side slope which has the working condition pile anchor to consolidate some deep, based on the strength decrease. And this thesis gives the safe coefficient of the rock side slope in different working condition. Optimizing a side slope ultimately consolidates a project.3. Consider the seepage pressure stabilizes affected on the side slope. Considering seepage pressure under the situation of having pole anchor strengthening, strain and displacement to the side slope have been affected to some content, but self character of the rock soil body is affected largely. Disregarding being that the intensity reduces Finite Element Method , still being that the safe coefficient constant value line follows the safe coefficient asking for, the existence of seepage pressure makes safe coefficient lessening , so we can say that seepage pressure has being bound to affect to the side slope stability.For verificating the possibility of the theory, writer carries on the case study and analysis calculation with the project example. Results show that it is valid and possible making use of the software ANSYS and carrying on the stability analysis considering the seepage pressure . Also the thesis provides the discretion basis for similar slope stability analysis and calculation.