Damage statistical mechanics model of top coal in steep top caving coal  

作　　者：王晓妮[1] 张洁[1] 等 

机构地区：[1]中国人民解放军85医院，上海200052

出　　处：《Journal of University of Science and Technology Beijing》2003年第1期12-15,共4页北京科技大学学报（英文版）

基　　金：This work was financially supported by the National Natural Science fund of China (No.50274058).

摘　　要：Damage statistical mechanics model of horizontal section height in the top caving was constructed in the paper. The influence factors including supporting pressure, dip angle and characteristic of coal on horizontal section height were analyzed as well. By terms of the practice project analysis, the horizontal section height increases with the increase of dip angle β and thickness of coal seam M. Dip angle of coal seam β has tremendous impact on horizontal section height, while thickness of coal seam M has slight impact. When thickness of coal seam is below 10m, horizontal section height increases sharply. While thickness exceeds 15m, it is not major factor influencing on horizontal section height any long.Damage statistical mechanics model of horizontal section height in the top caving was constructed in the paper. The influence factors including supporting pressure, dip angle and characteristic of coal on horizontal section height were analyzed as well. By terms of the practice project analysis, the horizontal section height increases with the increase of dip angle β and thickness of coal seam M. Dip angle of coal seam β has tremendous impact on horizontal section height, while thickness of coal seam M has slight impact. When thickness of coal seam is below 10m, horizontal section height increases sharply. While thickness exceeds 15m, it is not major factor influencing on horizontal section height any long.

关 键 词：steep-grade coal horizontal section height DAMAGE statistic mechanic model 

分 类 号：TD823.2[矿业工程—煤矿开采] TD32[矿业工程—矿山开采]