摘要
地质罗盘在测量断层产状时,受磁偏角、井下钢棚、绞车、锚杆等铁器的影响,使得所测产状误差较大,对生产造成较大影响,本文重点介绍了磁偏角的调整,以及通过地面和井下试验求得了罗盘不受铁器影响的最小距离,使得所测产状误差降到最小。
The measuring error of fault occurrence by a geological compass is usually very big due to the influence of the magnetic declination, underground steel materials such as steel shelves, winders and anchoring bolts, thus leading negative affect on coal production. This paper will focus on the adjustment of the magnetic inclination. By tests carried out both at the surface and underground, a minimum distance has been obtained within which the compass can not be influenced by steel materials. In this way the measuring error of fault occurrence could be reduced to the minimum.
出处
《煤矿现代化》
2004年第6期55-56,共2页
Coal Mine Modernization
关键词
井下
产状
罗盘
断层
绞车
锚杆
地质
磁偏角
地面
Geological compass, Magnetic inclination, Tests at the surface and underground
