多组结构面切割下水工隧洞关键块体可视化研究

Visualization research on key blocks of tunnel in multi parallel fracture cutting

为了搜索围岩在多组裂隙切割时形成的最大块体内关键块体,以某水工地下隧洞为例,基于地质资料分析,统计出裂隙产状、间距、内聚力等特征,根据块体理论,利用Matlab对岩体结构面进行三维网络模拟,实现了隧洞可动块体的显示、多组裂隙切割最大可动块体内最关键块体的显示,分析了滑动模式和安全系数,可满足工程的安全分析及可视化需求。

In order to search key blocks in whole block rock cut by multiple fractures,taking a hydraulic tunnel as an example,based on the analysis of geological data,the statistics of fractures,average spacing,cohesion was achieved according to block theory,used Matlab found rock structural plane in three-dimensional network simulation,displayed the movable block of the tunnel,and the display of the most critical block in rocks cutting buy multi groups of fractures,reveal the sliding mode and analyzed the safety factor,satisfied the requirement of the three-dimensional display in the engineering.