Auxiliary transportation mode in a fully-mechanized face in a nearly horizontal thin coal seam

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• 作者：Chen Wang^a ; ^b ; Shihao Tu^a ; ^b ; ^c ; ^{lichen19890622@126.com" class="auth_mail" title="E-mail the corresponding author} ; Lei Zhang^a ; Qianlong Yang^a ; Hongsheng Tu^a
• 关键词：Nearly horizontal ; Trackless transportation ; Rail transportation ; PROMETHEE ; Entropy method ; Equipment selection
• 刊名：International Journal of Mining Science and Technology
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：25
• 期：6
• 页码：963-968
• 全文大小：559 K

文摘

On fully-mechanized faces in nearly horizontal thin coal seams (NHTCS), the selection of the auxiliary transportation mode is difficult. Generally, auxiliary transportation mainly includes trackless or rail transportation. Combined with a familiar NHTCS fully-mechanized face, a multi-attribute decision-making model was set up for the decision. The index weight was objectively determined with the fuzzy number and entropy method. The priority order of auxiliary transportation modes was obtained from the Preference Ranking Organization Method for Enrichment Evaluation (PROMETHEE). The results show that: the net flow of the mode can be expressed by the function of the surrounding rock deformation of the roadway, the dimension of equipment and the thickness of the coal seam; Based on the cost type index, there is a positive correlation between the net flow with the height and width of the trackless auxiliary transportation equipment, respectively. The trackless auxiliary transportation equipment selection principle should be “height first then width”. Combined with the field application of the trackless auxiliary transportation in Liangshuijing coal mine, the proper method to achieve the safe and high-efficient exploitation of a NHTCS fully-mechanized face is trackless tyred vehicle auxiliary transportation.