Abstract:Aiming at the problems of low efficiency and high labor intensity and high risk coefficient of the traditional measurement method of rock mass structure information, the measurement method of rock mass discontinuity information was studied by using Sirovision rock 3D remote sensing measurement system.Taking the left fork tunnel in the middle section of -540 in Yinan gold mine as the engineering background, the investigation and digital identification of rock mass discontinuities were carried out, and the occurrence, distribution law and dominant joints of the rock mass discontinuities were analyzed, and the rock mass quality of the middle section of -540 was classified according to the rock RMR and Q classification methods.Based on the comprehensive analysis, it is concluded that the rock mass in this region is general rock mass of Ⅲ grade. According to the classification results of rock mass, the corresponding support scheme is proposed for this region. Through the numerical simulation results, it is found that the support scheme can control the displacement of roadway roof within the range of 100mm and meet the requirements of mine safety production.