CAJ | 학술논문

针对晋宁2号坑倾斜中厚矿体地下开采中的稳定性问题，通过现场勘查、室内试验以及数值模拟，对倾斜中厚磷矿体地下开采围岩稳定性进行计算。以往的计算中，选取的模型参数实际是岩石试样的力学参数，需要进行数学折算，才能应用于天然岩体。本文利用钻孔电视对现场进行钻孔勘探，结合Hoek-Brown经验公式，对岩石试样的力学性质进行评估和修正，使岩体力学参数更具合理性，进而对地下工程围岩稳定性进行数值模拟分析，可以得到更真实的计算结果。
침대진저2호갱경사중후광체지하개채중적은정성문제，통과현장감사、실내시험이급수치모의，대경사중후린광체지하개채위암은정성진행계산。이왕적계산중，선취적모형삼수실제시암석시양적역학삼수，수요진행수학절산，재능응용우천연암체。본문이용찬공전시대현장진행찬공감탐，결합Hoek-Brown경험공식，대암석시양적역학성질진행평고화수정，사암체역학삼수경구합이성，진이대지하공정위암은정성진행수치모의분석，가이득도경진실적계산결과。
The stability of the Jinning No.2 pit inclined medium thick ore body is studied through calculation of the stability of the inclined surrounding phosphorus ore body by means of field investigation,indoor experiment and numerical simulation.In previous calculations,the actual model parameter is the mechanical parameter of rock samples,which requires mathematical conversion before it can be applied to natural rock.Combined with Hoek-Brown empirical formula,borehole TV is adopted in the drilling exploration to evaluate and modify the mechanical parameters for ensuring their reasonableness.The numerical simulation analysis of the stability of the surround rock in underground engineering is finally carried out to obtain accurate calculation.