Study of application and prediction of cusp-catastrophe model in plane-plate loading test
Luan Mao-tian · Dalian Ligong Daxue xuebao · 2007
Based on the property of loading-settlement curve obtained from static loading test,the feasibility of cusp-catastrophe theory applied to the simulation of the curve for plane-plate loading test is qualitatively analyzed through coordinate transformation,a curve equation of plane-plate loading test,which is illustrated in the space of axes settlement,load and factor of bearing capacity for soils is established.According to the failure condition defined by soil deformations,the parameters of model are determined and the model is built up.By analysis of test data,it is indicated that the studied model is feasible.The cusp-catastrophe model is applied to the prediction of the relationship between loading and settlement of several plane-plate loading testing experiments.Through comparison and verification,it is displayed that the predicted results by cusp-catastrophe model are in accordance with the test results to a high degree.