3111回风顺槽过空巷施工技术应用
Application of Construction Technology of 3111 Return Wind Tunnel over the Empty Lane
裴丽晋1
作者信息
- 1. 山西高平科兴前和煤业有限公司,山西 高平 048400
- 折叠
摘要
为了防止前和煤矿3111回风顺槽过空巷期间出现顶板破碎、垮落等事故,加快巷道过空巷速度,对过空巷期间存在的技术难题进行合理分析,并对巷道过空巷前采取"锚网索+钢棚"联合支护,对过空巷期间采取超前穿钎临时支护,对过空巷后采取"钢棚+木柱+锚杆(索)"联合支护.通过实际应用效果来看,采取联合支护技术后,提高了过空巷期间顶板稳定性,未出现空巷顶板垮落事故,过空巷掘进速度提高至5.4 m/d,取得了显著应用成效.
Abstract
In order to prevent accidents such as roof crushing and collapsing from occurring during the passage of 3110 backwind tunnel in Qianhe Coal Mine and to accelerate the speed of the passage,the technical difficulties existing during the passage are reasonably analyzed,and the joint support of"anchor mesh rope+steel shed"is adopted before the passage,and the temporary support of"overpassing through the brazier"is adopted during the passage,while"steel shed+wooden pillar"is adopted after the passage.In addition,it adopts the joint support of"steel scaffolding+wooden column+anchor rods(ropes)"for the roadway before passing through the empty lane,and adopts the temporary support of over-penetrating brazing during passing through the empty lane.Through the actual application effect,after taking the joint support technology,it improves the stability of the roof plate during the passage,and there is no accident of the roof plate collapsing in the passage,and the digging speed of the passage is increased to 5.4 m/d,which achieves remarkable application results.
关键词
掘进巷道/空巷/支护技术/垮落Key words
tunneling/empty tunnel/support technology/collapse引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据