The Studies Of Cumulative Damage Effect And The Stability Of Open Slop Under Blasting Vibration

With the blasting technology more and more applying in mining engineering,the problem of blasting vibration role mine rock slope stability has also beenwidespread concern of scholars at home and abroad. In this paper, The ZhahanoerOpen Pit blasting vibration and acoustic test results are combined together toanalyze the cumulative damage of the blasting of rock slope, and carry out asystematic study of its damage law.Regression analysis results based on multiple production practices burst testdata acquisition show the Sadovsiki Vibration Formula, which specifically drawnblasting vibration damage on rock slope. According to the results of the acoustictesting, it comes blasting under rock acoustic reduction rate and cumulativedamage extent. Then analysis the main features of the acoustic velocity of the rockmass slope under blasting vibration disturbance. The law of cumulative rock slopedamage which explains the relationship between the number of blasting and thedegree of injury is put forward. Based on the injury law, opinions about slopeprotection are proposed. Simulate the actual situation of the four blasting andcritical slope failure with FLAC3Dsoftware to prove the theory of derivation of thereliability analysis.