块体稳定性分析系统BSA3D的开发与应用

在岩质高陡边坡中,由规模较大结构面为主控制的可动块体往往形态复杂,受力也很复杂,如何快速建模及进行复杂受力条件下的稳定性分析是块体理论应用的关键.作者依据块体理论,针对性地进行了相关技术的研究分析:考虑到编程的方便,采用块体边界面分类和提供块体顶点信息方式,实现了复杂模型的快速建立;通过考虑各种可能荷载作用及矢量合成分析,可正确进行滑动模式判断.应用软件用于某水电工程进水口正面边坡潜在不稳定块体分析,结果表明:可动块体控制性工况为运行期1/4饱水 地震条件,相应的锚固力为264 617 kN.

Development and application of BAS3D-blcok stability analysis software

The movable block mostly controlled by large-sized structural surface usually has a complex geometric form and loading on the high rock slope.It is very important how to make geometric model fastly and do block stability analysis under complex load.Based on the block theory,the authors make careful researches on the involved technique and method:for convenient programming,the complex geometric model may be made fastly by classifying block surface and providing block peak formation;and the sliding mode of block may be judged correctly by considering all kinds of loading and vector analysis.This block stability analysis software has been used for potentially unstable block analysis of water inlet side slope of a hydroelectric power,and the result shows that the controlling work condition is quarter-saturating earthquake,and its anchoring force is 264 617 kN.