Research On Land Subsidence And Collapse Geological Calamities Fatalness Subarea In Dalong Mine Of Tiefa Coal Field

The paper considers two facets of mining and the dewatering in the mine pit at the same time, studies two geological calamities of land subsidence and land collapse which are brought by the mining activity in Dalong mine of Tiefa Coal Field, simulates land subsidence curve and the level distortion curve which are brought by the mining using surface distortion simulation software; simulates land subsidence distortion curve which is brought by the precipitation using Surfer and Visual MODFLOW ,and splices surface distortion curves which are brought by two factors using the Matlab procedure.The paper uses the tradition geology history analysis method and modern number statistical method, according to superimposed surface distortion curve, comparing the building permitted surface distortion value which the "three down" the mining coal regulations prescribed, The village is carried out geology disaster danger classification and the subarea in Tiefa Coal Field downpunch area inner.The basic ideas and the concrete step of fuzzy gathered method based on the diagrammatic, The paper standardizes the original data and structures similar matrix using C + + language, structures the largest tree using Kruskal, validates accuracy of calamity subarea, moreover, provides bases to downpunch area's disaster prevention and control , the village layout.