The Study Of Geological Disaster System And Prevention Compartment In Heyang Country

Heyang country is located in the east of Weibei loess plain in Guanzhong district of Shann'xi province and adjoint of Yellow River. Geological disaster often occur and strongly threaten human being's life,wealth,safeness by the influence of geologic structure,topographical ground feature,stratum rock gender,river and humanity engineering activity for years. This thesis study geological disaster of Heyang in the point of system. On the basis of out-site inspection and detailed analysis of geology data, the author summaries the geological disaster type,scale and development feature of Heyang country. Duo to Heyang country's geology conditions complexity,nature and factitious convulsion factors and each factor incident with one another intimately, single theory and analytic method already can't satisfy requirement, So, Heyang country geological disaster must be study by one system. This thesis formulize geology disaster system's character-complexity relevance,self-organization,fractal and catastrophe. Affecting factor-rainfall of the best of relevance grade is concluded in the use of grey relevance analysis and It provides reference of geology disaster prediction. This paper use the fractal theory to get the Heyang geological disaster system's dimension, which is 1.03. The parameter of special fractal feature,object geometric complexity and geometric distribution relationship, get to quantification indicator of geological disaster system's complexity .In the stability evaluation and forecasting of the Heyang geological disaster , the author uses GM(1,1) model to forecast the displacement of the landslide , makes the performance of MAPGIS spatial analysis forecasting the tendency of the disaster , and works out the figure of the disaster development. This paper finally works out the occurrence deci-district figure and geology disaster protect plan map in the use of fuzzy comprehensive judgment and local economic development planning. This will provide good consult and guidance for prevention of geological disaster in Heyang country. ...