山东煤炭科技2024，Vol.42Issue(5)：115-119,5.DOI:10.3969/j.issn.1005-2801.2024.05.023
超大采高液压支架支护安全特性研究
Research on Support Safety Characteristics of Hydraulic Support for Super Large Mining Height
田晓杰1
作者信息
- 1. 晋能控股装备制造集团大同机电装备有限公司中央机厂,山西 大同 037001
- 折叠
摘要
Abstract
In view of the stability problem of the super large mining height hydraulic support in the 12401 working face of Yanzishan Mine,by establishing a coupling model of the super large mining height hydraulic support group-surrounding rock.The mechanical effects of different factors of the working face and roof on the model are analyzed using models,and the variation law of roof deformation at the upper end of the support column and the support strength under different factors are obtained.Then,a support strategy that can effectively adapt to the deformation of the working face roof is obtained.The strength characteristics of the super large mining height hydraulic support in the working face are analyzed,and the highest stress on the hydraulic support has characteristics of localization and regionalization are obtained.The practical application shows that errors of theoretical and experimental values are relatively small,both within an acceptable range.Non equal strength support strength can effectively control the deformation of the roof,and a super large mining height hydraulic support group-surrounding rock coupling model can be used to judge the support characteristics of the support.关键词
超大采高/液压支架/非等强支护Key words
super large mining height/hydraulic support/non equal strength support分类
矿业与冶金引用本文复制引用
田晓杰..超大采高液压支架支护安全特性研究[J].山东煤炭科技,2024,42(5):115-119,5.
