摘要
以21190工作面全煤切眼为例,以地质条件和围岩特性等因素为基础,提出在正常地段采用锚网索和托棚支护,在异常地段采用架设U型钢棚子支护。支护结果显示,通过该支护方式的实施有效控制了切眼收敛变形,为切眼掘进和综采设备安装提供了有利条件。
Based on the geological conditions and the characteristics of surrounding rock at 21190 working face, the author presents the application of bolt-mesh-cable support with shed support in the normal section and the U-type steel-shed support in the abnormal section, which can control the convergent deformation of the cutting effectively and provide favorable conditions for cutting drilling and fully mechanized mining equipment installation.
作者
张勇
Zhang Yong(Mining Engineering Dept.,Shanxi Institute of Energy,Taiyuan,Shanxi,03060)
出处
《江西煤炭科技》
2018年第4期17-18,21,共3页
Jiangxi Coal Science & Technology
关键词
切眼
锚网索
架棚
效果分析
cutting
bolt-mesh-cable
shelf
effect analysis
