Three Dimensional Stability Analysis Of Potential Energy Minimum Bolting Slope

At home and abroad, a large number of engineering construction leads to a series of urgentengineering problems, the slope instability caused by a large number of casualties and economicloss to the state. In the research field of the slope stability, slope stability or the method of limitequilibrium method, the method is used widely, but there are also many problems. In the practicalconstruction, all the slope instability into three-dimensional form, apparently usingtwo-dimensional to study on it is inconsistent with the actual, so the obtained results have certaindiscrepancy.At present, the slope stability analysis methods, the minimum potential energy method is akind of from the energy point of view, does not require the sliding body division, withoutconsidering the internal function, the whole sliding body as an invariant rigid body displacement,slope, we can get the safety of engineering, method is simple and clear. Previous research showedthat: this method with the traditional limit equilibrium method comparison, results are verysimilar, indicating that the method has good applicability. However, this method in the analysis ofThree-dimensional slope stability has not been explored, and do not consider the reinforcementmeasures, therefore, three-dimensional minimum potential energy stability based on anchorreinforced slope analysis method to do some research, the specific contents are as follows:(1) For arbitrary slip surface of homogeneous slope, slide the body as a whole, establish thesystem potential energy function of sliding body, based on the principle of minimum energy,calculate the surface normal stress and the limit sliding resistance force balance equation, thenthrough the force to get the safety factor, finally has carried on the example analysis andverification.(2) For arbitrary slip surface of slope reinforcement bolt, the principle of minimum potentialenergy based on the potential energy calculation model is established, on the basis of this model,from the point of view of force balance method was proposed to calculate the safety factor, andthe example is analyzed and verified.(3) Analysis method for stability of the establishment, development of3D slope stability ofanchor reinforcement using MATLAB software.(4) The stability of the developed analytical procedures used in slope engineering examplesof representative, verify the effectiveness of the procedure and the principle of minimumpotential energy bolt reinforcement based on superiority of three-dimensional slope stabilityanalysis method. Research shows that: the factor of safety of slope safety factor of slope anchorthan without consideration of reinforcement measures to improve. Three-dimensional analysis ofslope stability by using the minimum potential energy method this paper, analysis results of limit equilibrium method and the result error is within4%, show the availability of this method.