The Research For The Mine Blasting Vibration Fatigue Damage Of Rock Mass Slope Weaking

With outdoor pare the wide application of technology, blasting up under themine with the stability of the slope rock mass more and more attention to.Combining with the Inner Mongolia HuoLin henan under the action of blastingvibration open mining slope rock mass of the vibration and sound waves measureddata of the blasting vibration analysis of rock mass slope in mining withcumulative damage effect, the damage law do the system research.According to the four blasting production practice, on the analysis of themeasured data of the blasting vibration every time and its main parameters underthe conditions of the return to get in the corresponding condition of the blastingvibration velocity SaDaoFu tversky formula, specify the blasting vibration for thedamage of rock mass slope role. According to the results of the test sound waves,under the action of blasting vibration in the calculation of the rock sound wavesreduce rate and rock damage degree, and on the basis of the analysis of theblasting vibration wave velocity of rock mass under the action of the main featuresof the sound waves; Summarizes and slope to different directions of the slope rockmass damage law; And by using software to four times FLAC3D blasting vibrationdynamic loading the slope rock mass damage area in the simulation, and prove thecorrectness of the classification of the damage area. According to the calculationresults of the blasting vibration damage analysis, under the action of blastingvibration divided the slope rock mass damage area; The dimension analysisconsidering the elevation difference regress blasting vibration frequencyattenuation formulas.