煤矿安全2017，Vol.48Issue(5)：155-158,4.DOI:10.13347/j.cnki.mkaq.2017.05.043
非对称锚网支护技术在窄煤柱沿空掘巷中的应用
Application of Asymmetric Anchor Net Support Technology in Narrow Coal Pillar Gob-side Entry Driving
付建华 1韩小冰 2李红行 1张建甫 3丁喜明1
作者信息
- 1. 河南省三软煤层开采工程技术研究中心,河南郑州450042
- 2. 郑州煤炭工业(集团)有限责任公司米村煤矿,河南新密452300
- 3. 郑州煤炭工业(集团)有限责任公司,河南郑州450042
- 折叠
摘要
Abstract
The supporting method of three soft narrow coal pillar gob-side entry driving has been used to symmetrical support,while the damage of roadway often appears asymmetric deformation characteristics;the support technology of gob-side entry driving meets great challenge,and the damage law is extremely complex.This paper takes Micun Coal Mine 210101 roadway head as an example,analyzes the asymmetric deformation characteristics of roadway and establishes anchor net supporting plan of 210101 roadway head.The test result shows that roof-to-floor convergence is between 0.32 m and 0.37 m,two-sided displacement is between 0.21 m and 0.28 m,and the data of roof separation is between 0 to 50 mm.The roadway surrounding rock deformation has been effectively controlled.关键词
窄煤柱/沿空掘巷/非对称/锚网支护/巷道支护/围岩变形Key words
narrow coal pillar/gob-side entry driving/asymmetric/anchor net supporting/roadway support/rock deformation分类
矿业与冶金引用本文复制引用
付建华,韩小冰,李红行,张建甫,丁喜明..非对称锚网支护技术在窄煤柱沿空掘巷中的应用[J].煤矿安全,2017,48(5):155-158,4.
