摘要
为使3105回风顺槽安全快速通过老巷,防止过空巷期间顶板垮落事故发生,决定采用"松动爆破"施工工艺,对空巷顶板采取"梯形梁索棚+注浆锚杆+U29型钢棚"联合支护技术,过空巷期间未出现顶板破碎、冒落现象,取得了较好效果。
For 3105 return air through the old roadway safely and quickly,to prevent roof collapse accident during over-air roadway,it is decided to adopt"loose blasting"construction technology,adopt the joint support technology of"trapezoidal cable+grouting anchor+U29 steel shed"to the roof of empty roadway.There is no roof breaking and falling phenomenon during the over-empty roadway,and good results are obtained.
作者
卫伟
Wei Wei(Shanxi Coal Transportation and Marketing Group Science and Technology Research Co.,Ltd.,Shanxi Taiyuan 030006)
出处
《山东煤炭科技》
2021年第2期77-78,81,84,共4页
Shandong Coal Science and Technology
关键词
掘进
空巷
工艺
支护
driving
empty lanes
process
support
