Study On Structural Features And Quantitative Evaluation Of Coal Deformation Degree On Songzao Mining Area

It profoundly revealed the development and distribution of its construction, taken tectonic characteristics and coal deformation degree of quantitative evaluation as the research object. In depth study of the regional tectonic background basis, it clarified the structural evolution sequence, and made a quantitative analysis of structure of mining area. It studied on the characteristics of coal reservoir mining layer, division of coal body structure type, to explore the geological structure of structure coal control action. And it selectted the appropriate index of deformation degree on deformation of M8 by fuzzy comprehensive evaluation.Research shows that, mine construction in the plane formes radial "gubao structure". Fold intensity gradually decreases from east to west, and finally formats monoclinic structure. The fault has good consistency, and the development of faults and folds close characteristics. The structural form in Songzao Mining Area and its evolution is controlled by the right angled triangle boundary. Himalayan forms the NNE trending folds, and the qualitative phase structure of mining area.On the quantitative analysis to the structure of mining area. The fault strength, the fractal dimension of fault, tectonic curvature distribution is summarized.Using structural curvature method and absolute value of the coal seam dip to evaluate quantitatively the fold structure. And using fault strength and fractal dimension value to evaluate quantitatively the fault structure. In the "gubao structure", the comprehensive complexity index showed a gradual increase trend in the mining area to the East. In northern of Mine central high performance by numerical means decreasing around the trend.The main coals of Mining are high degree of metamorphism. Ro,max was about 2.5%. The main Macerals is vitrinite, inertinite followed. Inorganic content is relatively high in coal seam. This paper analysis of the structure characteristics of the coalfield coal seam in small pores and micropores. The results of logging interpretation of M8 coal structure show that: in the monoclinic structure of coal body structure is given priority to with class I of normal structure of coal structure, little disturbance by coal body structure; in the wide slow drape anticline and big fish jump at the wood syncline coal structure to class II transitional structure coal, geological structure effect in the near fault belt; and closed folds of coal body structure to class III of tectonic coal, structure has obvious control effect on the coal structure.It selects the appropriate index of deformation degree on deformation of M8 by fuzzy comprehensive evaluation.The article thinks M8 coal in Songzao Mining Area deformation degree is partial to wait for the complex. The results distribution has been verified from distribution characteristics of coal and gas outburst point and logging interpretation of M8 coal body...