The Study On Variation Of Structure And Coal-bed Thickness In Southern Of Xingtai Mining Area

In order to get the variation of structure and coalbed thickness in southern of xingtai mining area and provide the basis for reasonable exploitation and utilization of coal resources. The author based on information of primary mineable coal bed of mine field in southern of xingtai mining area,through trend analysis and draw the contour line of coal floor, summarized the pattern of faults and folds and the influence to coal mine production on. through draw the isoline of coal thickness, summarized the pattern of thickness variation of primary mineable coal bed of mine field and study influencing factors in thickness variation.This research shows:The general trend of tectonic tilt to the southwest as a monoclinic. On the basis of a single oblique fold over the control of another by. Fold the study area are different levels of damage by the fault, are more developed secondary folds. Fold more slowly for the wide folds, moderate, more moderate wing formation. Study area faults are well developed, mainly by normal faults, mainly to the 70°.Structural complexity of the study area for the medium, in which faults are the main factors affecting coal production. 2#coal seam thickness of trend for the east and west sides thick, middle thickness small. More than the thickness of the west and east over the 2m, coal thickness change is more severe. More in the middle of the thickness of 1.5m below the coal thickness is more stable.9#coal seam thickness trend in the north than in the south, the west than the east.Most of the 3.0m thick coal northwest over the east and south over the 3.0m thick coal seam less. The changes in the thickness of the sub-regional lots more. The study area, the mine field of ancient topography and little correlation between seam thickness; Xiandewang coal area main factors of coal thickness for the same sedimentary structures and post-construction, The main factors influencing the thickness of coal in Zhangcun coal area is magmatism. River erosion has also affected the thickness of the coal mine field, but less extensive.