采矿与安全工程学报Issue(4)：542-547,6.
煤体冲击破坏过程中的近磁场突变效应及其机理研究
Transient effect and mechanism of near magnetic field in impact failure process of coal mass
摘要
Abstract
In this paper, the impact failure experiment of coal mass was conducted in SHPB experi-mental system. Meanwhile, the changes of near transient magnetic field were tested by ZDKT-1 Tran-sient Magnetic Testing System, and the generation mechanism was analyzed. The results show that the near magnetic field of coal mass will be mutated suddenly when the coal samples were suffered by high speed impact. In addition, different impact damage characteristics of coal mass were comparatively analyzed through infrared spectrum technique. It is concluded that H-bonds of hydroxyl group are changed at different statuses before and after the impact failure process of coal samples, and the separa-tion and transfer of massive electric charge during the H-bonds rupture is one of the most important reasons for instant mutation of near magnetic field.关键词
煤体/冲击破坏/瞬变磁场/氢键/电荷转移Key words
coal mass/impact failure/transient magnetic field/H-bond/electric charge transfer分类
矿业与冶金引用本文复制引用
..煤体冲击破坏过程中的近磁场突变效应及其机理研究[J].采矿与安全工程学报,2013,(4):542-547,6.基金项目
国家自然科学基金重点项目(51274206)；中央高校基本科研业务费专项资金项目(2010YZ05) （51274206）
