岩体结构面精细化空间模型及块体失稳分析

Spatial Modeling of Refined Structural Plane of Rock Mass and Block Stability Analysis

提出了将确定性结构面与随机结构面相结合来模拟岩体结构面的方法.确定性结构面依据工程地质勘测等资料通过多源数据耦合获得;而随机结构面则根据采用数字摄像测量技术现场测量的数据,运用三维网络模拟技术生成.同时引入结构面动态校核机制,利用掘进开挖过程中不断测量得到的数据对模拟的结构面进行动态校核及实时调整,从而建立比较精细的结构面空间模型.基于上述结构面模型,采用作者自行研发的GeoSMA-3D系统可以搜索出失稳块体,这对工程岩体稳定性预报和动态设计施工都有重要意义.

A method for modeling structural planes of rock mass was proposea Dy combining definite structural planes with random ones. Definite structural planes were obtained according to the data from engineering geological exploratory survey, while random ones were generated by 3D network simulation technique using the data from digital photogrammetry. A mechanism was introduced to dynamically check/adjust the random structural planes based on the real-time data acquired from the construction in progress,thus a more accurate model was established. Based on the model, unstable blocks can be found out using the GeoSMA-3D system developed by the authors, which has great significance for rock mass stability forecast and dynamic design/ construction.