Prediction of Subsidence in steep seam mining based on probability integral
The deficiency of subsidence prediction in steep seam mining by the theory of equivalent effect is analyzed: more than 1/2 area of the subsidence basin is caused by the mining of downhill horizontal seam because of the great difference between rl and r2; r2 is too small that the sinking curve is almost vertical. According to the characteristic of that mining depth is quite different in steep seam mining, a new prediction model with variable r is put forward based on the probability integral model. The model is better than others for steep seam mining and can be adopted widely.
probability integral method steep seam major influencing radius unit mining
Zhao-jiang Zhang
Hebei University of Engineering Handan,China
国际会议
南京
英文
151-153
2010-08-26（万方平台首次上网日期，不代表论文的发表时间）