摘要
以黄河上游某大型电站地下洞室群主变洞为例,通过在AutoCAD软件中建立洞室与结构面的三维实体模型,借助自编程序切割,展示这些结构面在主变洞边墙及拱顶的出露情况,在此基础上检索出组合块体21个,最后对这21个块体进行了确定性块体稳定性评价,给出其在主变洞上下游边墙及拱顶的块体组合情况、滑动方式、出露桩号和高度、出露面积、分布深度、体积、稳定性系数等。
This paper presents a case study of stability analysis in a huge underground powerhouse. Solid models of caverns with fractures are created using AutoCAD2002/2004 software with programmed modules for excavations/cutting, which specify arch crown, upstream side wall and downstream side wall as cross sectional planes. Based on these fractures, 21 blocks are chosen as deterministic blocks and their stabilities are then assessed. At last, assessment results are given for all deterministic blocks including following attributes: fractures jointed methods, sliding methods, area, depth, volume, safety factor, and location in caverns.
出处
《工程地质学报》
CSCD
2005年第2期212-217,共6页
Journal of Engineering Geology
基金
国家自然科学基金项目(编号:40372127)资助.
