| Urban Shock is an important component of disaster prevention space subsystems of the city, while the scale of disaster prevention and space research shock level is an important part of urban earthquake disaster prevention space suspension system. In this study the seismic intensity of not less than 8 degrees in two small towns - and Dongchuan District Jianchuan as the research object, select Zipf fractal model and the difference index performs Scale Structure of Small Towns shock space evaluation studies have shown, the rating scale and Dongchuan District Jianchuan urban disaster prevention space shock fractal, and exhibits by a single fractal, to double local fractal fractal change, indicating the fractal theory in small towns shock feasibility Assessment scale structure of space Disaster applied, also illustrates the complexity and diversity of urban disaster prevention space suspension layout. Through differences in index of the Scale Structure of Case county study, either verify the fractal portion and Zipf dimension conclusion of consistency can also be used as supplementary Zipf dimension of the Central African sub-shaped portion hierarchy study adds comprehensive rating scale studies. By Zipf fractal dimension model and the difference index, the index level quantization scale so that the evaluation process can be based on specific numerical scale more specific estimates of actual shock like space, unaffected by human factors and cognitive factors, The evaluation results are more accurate. Grading Scale Structure of Space shock two small towns to evaluate ideas and suggestions put forward at the same time to further improve our research on the theory and method of urban disaster prevention space suspension evaluations, as well as Small Town Disaster Shock evaluation scale structure of space provides a practical way. |
