摘要
基于范各庄矿开采深度的不断增加,地质条件也随之复杂,矿山压力显现加大,支护越来越困难的情况,按照锚网支护设计及相应施工工艺在3123切眼实施深部高应力区大断面锚网支护实践后,通过巷道顶板离层仪、十字测点的数据显示,切眼顶板及两帮变形在允许范围内,支护效果良好,保证了巷道安全可靠性,为深部高应力区大断面锚网支护提供了强有力的技术支撑。
Based on the FangezhuangMine miningdepth increasing, with complicated geological conditions, mine pressure increasing, more and more difficult support situation, according to the anchor net supporting design and construction technology of corresponding implementation in 3123 cut deep high stress area of the anchor net supporting after practice, through roadway roof abscission layer, cross point figures showed that, cut roof and two deformation within the scope of the permit, with good supporting effect, ensured the safety and reliability of roadway, provided strong technical support for deep high stress area anchor net supporting.
出处
《煤炭与化工》
CAS
2014年第4期45-47,共3页
Coal and Chemical Industry
关键词
大断面
采空区
高预应力
锚网支护
large section
goaf
high prestressed
anchor net supporting