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Study on the Factor of the Degree of Top Coal Caving in Steep Seam

Author: XiaXiaoGang
Tutor: ZuoWeiPan；ShiPingWu
School: Xi'an University of Science and Technology
Course: Applied Mathematics
Keywords: Steep Seam Top coal caving Principal Component Analysis Cluster analysis
CLC: TD823.49
Type: Master's thesis
Year: 2005
Downloads: 251
Quote: 6
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Abstract


Carried out a detailed study on the basis of field research observations and theoretical analysis, the establishment of a pilot model and numerical simulation on top coal caving mining with sublevel caving of steep seams . Classification purified thesis on the influence factors of top coal caving of steep seams , and the impact of top coal caving factors are divided into two categories of process factors and geological factors affecting top coal caving of steep seams technological factors and geological factors theoretical analysis and quantitative research , pointed out that the seam caving seam inherent nature , can be put of the coal seam is determined by its occurrence conditions , reasonable choice of the process parameters can improve top coal put effective measures and necessary complement . Secondly, the impact of the diversity of the the steep seam top coal caving geological factors , the application of the theory of multivariate statistical analysis of the main component analysis , to establish top coal caving Sort model . Again , according to the ranking model was built , as well as selected coal mines and face the first principal component of the value of the top coal caving classify , identify each can put the the sexual category seam range . Finally, the system cluster, cluster analysis of selected coal mines and face clustering results can be to put sexual similar to mine or face basically the same category as coal seam from a deeper level reveals geological conditions and top coal caving degree of inherent change the law to make reasonable predictions of the top coal caving caving mining face . Relevant research and field practice exactly the same , indicating that the model has application value for the promotion and exploitation of the mechanized caving caving process parameters chosen to provide the theoretical basis and scientific basis .

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CLC: > Industrial Technology > Mining Engineering > Mining > Coal mining > Underground mining methods > Wall mining method > Caving Mining Method
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