中文摘要：

岩体隧道开挖过程中所获得的节理相关信息的迅速程度、准确程度将直接影响到工程的安全性。借助于三维岩体不接触测量技术,快速获取一系列真实描述岩体宏观结构的数字图像,提取节理几何形态空间分布信息,在此基础上利用自行开发研制的岩体模型空间分析系统GeoSMA-3D,快速识别关键块体;并运用三维离散元程序3DEC及其内嵌FISH语言建立模型,将两者的优势结合起来。研究工作面推进过程中岩体的运动形式和垮落形态,记录并且分析开挖推进过程岩体变形塌落全过程,最后尝试将数值计算结果来反馈分析指导施工。

英文摘要：

During the excavation of rock tunnels,the acquisition velocity and accuracy of joint information will affect the safety of the project directly.The three-dimensional noncontact measurement software 3GSM is employed to obtain digital images which characterize the macrostructure of rock mass in short time,then the information of spatial distribution geometric shape of joints is extracted.The rock mass 3D analysis system GeoSMA-3D is adopted to identify the key block of surrounding rock.At the same time a model is developed by using the discrete element method program-3DEC and the FISH language which is embedded in 3DEC.The motion and falling modes of the rock during the excavation are studied.The whole process of motion and deformation of the rock mass is recorded and analyzed.Finally,the numerical results are employed to guide the project construction.