摘要
针对耿村煤矿12170工作面的地质条件及开采技术,提出了大断面综放切眼支护采用锚网索加钢带梁耦合支护配合单体柱的联合支护方式;通过对支护参数的合理选取,同时对巷道离层和锚杆受力的检测,有效地控制了大断面切眼顶板及两帮的变形问题。
According to 12170 working face geological conditions and mining technology in Gengcun coal mine,put forward the combined supporting method of the large section fully mechanized open- off cut using bolt net cable and steel beam coupling support with single prop; reasonablely selected support parameters,and detected the stress of bolt and the roadway separation,effectively control the deformation problems of the roof and two ribs of large section roadway.
出处
《山东煤炭科技》
2014年第6期36-37,共2页
Shandong Coal Science and Technology
关键词
大断面切眼
锚网索钢带梁
耦合
支护参数
large section open-off cut
bolt mesh cable and steel strip beam
coupling
support parameter
