Detection of abandoned underground mine voids using in-seam seismic waves
Detection of underground voids has become increasingly important in reducing mine hazards.This paper introduces a void detection technique which,developed at the Pennsylvania State University,uses in-seam waves.Depending on the seam condition,either body waves or Love waves may be used.Where the seam is softer than country rocks,such as coal mines,Love waves are used.This is referred as the in-seam seismic (ISS) based void detection method.Where the orebody is stronger than country rocks,body waves (P- and/or S-waves) are used for void detection,which is called the in-seam body wave (ISBW) based void detection method.Among various features for this new technique,the most important one is its capability of acquiring high quality and broadband signals ranging from 50 to 5000 Hz.This feature is essential for acquiring and analyzing Love wave signals for thin coal seams and body wave signals for mines with strong orebody.This technique was successfully tested at trona,anthracite and bituminous mines,which provides the mining industry a new and reliable means for void detection.
Void detection Mine safety Inundation In-seam seismic Love waves Dispersion
Maochen Ge D H Steve Zou
Pennsylvania State University,University Park,PA 16802,USA Mineral Resource Engineering,Dalhousie University,Halifax,Canada,B3J1Z1
国际会议
The 2007 International Conference on Mine Hazards Prevention and Control(2007矿山灾害预防与控制国际学术会议)
青岛
英文
635-643
2007-10-17（万方平台首次上网日期，不代表论文的发表时间）