摘要
为了加快大断面全煤巷道开口施工,保证施工安全,对N1206胶带顺槽采取分层爆破开口施工工艺,并对开口过巷段不稳定顶板采取“撞楔超前支护+恒阻锚索桁架支护+双梁梯形棚”支护措施进行维护,加快了巷道掘进速度,提高了开口段顶板稳定性,联合加强支护效果显著。
To accelerate the opening construction at large section full-seam roadway and guarantee the construction safety,the opening construction technique with slicing blasting was adopted at N1206 belt crossheading,in which comprehensive support with u advanced support with hammering wedge,constant-resistance cable truss support and twin-beam trapezoidal shed was applied in instable roof to quicken the excavating speed and increase the roof stability.
作者
张海峰
Zhang Haifeng(Yuwu Coal Industry Co.,Ltd.,Lu*an Group,Changzhi,Shanxi 046100)
出处
《江西煤炭科技》
2020年第1期118-120,共3页
Jiangxi Coal Science & Technology
关键词
大断面
巷道开口
分层爆破
综合支护
large section
roadway opening
slicing blasting
comprehensive support
