Prediction Study of Caving Space in Block Caving Mining Method by Magnetic Strength Change Measured in Field JIANG Zeng-guo,SHU Huai-zhu (School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070, China)A new theory and method of predicting the caving space in block caving mining method is proposed. The basic principle is the magnetic prospecting theory and the formation of correlation between caving space and the change of vertical component of magnetic strength measured in the field. The results showed that this method is reliable and practical in both method and accuracy.caving space; magnetic prospecting; natural caving mining method; field testing
