山东煤炭科技Issue(1)：36-37,39,3.DOI:10.3969/j.issn.1005-2801.2015.01.16
桁架锚索复合支护技术在特大断面厚煤层切巷的应用
Technology of Truss Anchor Composite Support in Thick Coal Seam Super Large-Section Open-off Cut
高星照1
作者信息
- 1. 中国大唐集团公司规划发展部，北京 100033
- 折叠
摘要
Abstract
This paper as the research object of the surrounding rock control of the open-off cut at the mine in Shanxi, it analyzed the control mechanism of truss anchor composite combined technology by classiifed surrounding rock stability of 412 open-off cut in a mine, and truss anchor composite combined technology key parameters were determined by FLAC3D numerical analysis, truss anchor combined technology was proposed in thick coal super large-section open-off cut. Engineering practice indicated that the open-off cut could realize self-stabled 24days after caving open-off cut, and the sidewall convergence was 93mm, and the maximum displacement of lfoor rock was 143mm, and the total roof separation was 9mm. So the combined truss and bolt technology had performed well in controlling the deformation of surrounding rock.关键词
桁架锚索/特大断面/厚煤层Key words
truss anchor/super large-section/thick coal seam分类
矿业与冶金引用本文复制引用
高星照..桁架锚索复合支护技术在特大断面厚煤层切巷的应用[J].山东煤炭科技,2015,(1):36-37,39,3.
