Characteristics of ground behavior of fully mechanized caving faces in hard thick seams

被引：5

作者：

索永录

机构：

[1] School of Energy Engineering Xi'an University of Science & Technology

[2] Xi′an

[3] China

来源：

JournalofCoalScience&Engineering(China) | 2003年 / 02期

关键词：

hard seam; fully mechanized caving; ground behavior;

D O I：

暂无

中图分类号：

TD823.9 [];

学科分类号：

081901 ;

摘要：

It is showed in practice that the support load and its fluctuation is large, the periodic weighting is obvious and can be divided into two kinds, the large and small pressure, sometimes the behavior of the large pressure is very violent in hard thick seam caving faces. These are obviously different from those of the generally soft or medium hard seam caving feces. All above these are summarized, and the causes aroused these are researched. Finally the powered support selection of hard thick seam caving faces is discussed.

引用

页码：25 / 29

页数：5