某电站大型地下洞室群主变洞确定性块体稳定性评价  

STABILITY ASSESSMENT OF DETERMINISTIC BLOCKS OF A MAIN-TRANSFORMED CAVERN IN A HUGE UNDERGROUND POWERHOUSE

作　　者：崔银祥[1] 聂德新[1] 陈强[1] 

机构地区：[1]成都理工大学工程地质研究所,成都610059

出　　处：《工程地质学报》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.

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.

关 键 词：稳定性评价 地下洞室群 确定性 块体 主变 AutoCAD软件 三维实体模型 稳定性系数 大型电站 黄河上游 自编程序 结构面 拱顶 边墙 组合 滑动 

分 类 号：P642.22[天文地球—工程地质学] TV554[天文地球—地质矿产勘探]