【摘要】 结合露天转地下开采边坡的工程特点、现有的高陡岩质边坡的微震监测结果及滑坡实例的分析,指出:对露天转地下开采边坡稳定性的研究,如果只进行单一的数值计算分析,其模型及参数的可靠性和适用性缺乏实际物理反馈信息的验证;如果只进行单一的损伤定位的微震监测,则对于损伤形成机理分析缺乏理论依据且无法给出边坡的实时安全系数。认为建立以微震物理信息为基础、以微震源能量-岩体损伤表征关系为纽带、微震监测-数值分析相结合的滑动面时空基准标定方法,是开展露天转地下开采边坡稳定性研究的可尝试新思路。更多还原

【Abstract】 The characteristics related to rock slopes in the transition from open pit to underground mining are reviewed.Based on the microseismic monitoring results and correlated case study,it is pointed that it lacks of reliability and verification to only conduct numerical simulation on the slope stability in the transition from open pit to underground mining,as well as it cannot provide a reasonable explain for the damage evolution and corresponding safety factors.It is proposed that the prediction and calibration of slopes in the transition from open pit to underground mining should combine the numerical analysis and microseismic monitoring based on the relationship between rock damage and physical data of acoustic emissions.更多还原