Applied Mechanics and Materials Vols. 341-342

Abstract: Its not flexible and convenient to study the influence of slope surface shape on safety factor by present calculated software, so its necessary to program a new program. Calculated program of homogeneous soil slope are programmed by VC based on theory of limit equilibrium. In the end, the program is confirmed precisely by general examination question.

Abstract: This paper numerically simulates the deflection response of layers on the cross section of a medium-strength subgrade (MFC) flexible pavement under repeating load, by a radial basic function (RBF) neural network model. The RBF modeling focuses on the functional relationship between the local points in the top deflection curves of pavement layers. The input and output data of the RBF model utilizes the last deflection profiles on the tops of four layers in the test. The deflection curve of the pavement surface is set as the input data since its developing process can been watched and measured in the test. The deflection curves of the other three layers are as the output data, because their deflection process was invisible in the test. Thus, the deflection process of the pavement layers invisible in the test can be simulated by the trained RBF neural network model, which results in a further analysis based on the obtained simulation data.

Abstract: Based on nonlinear finite element method, the deformation and stability of embankment influenced by surcharge preloading is analyzed. It is shown that the location of the maximal lateral displacement of embankment is changeable at different construction stages. The location of the maximal lateral displacement is nearer the shoulder of embankment with construction of embankment. The lateral displacement and vertical settlement become larger and stability of embankment become smaller, when the location of surcharge loads nearer the axis of symmetry of embankment. Therefore, in order to accelerate the settlement of embankment during construction, surcharge preloading should be located nearer the axis of symmetry of embankment.

Abstract: In view of our country needs to improve the ability of city earthquake disaster prevention, the paper proposes the earthquake damage prediction method of buildings group based on damage factors method. The system establishes the earthquake damage prediction of spatial database. Based on the earthquake damage factors method and the application of the GIS spatial analysis model, we predict earthquake disaster loss of city buildings and realized the Langfang city earthquake disaster prediction system. The realization of this system provides strong technical support for improving the ability of Langfang earthquake disaster prevention.