| 快速拉格朗日法分析巨型地下洞室群稳定性 |
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| 引用本文： | 杨为民,陈卫忠,李术才,杨典森,李飞.快速拉格朗日法分析巨型地下洞室群稳定性[J].岩土工程学报,2005,27(2):230-234. |
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| 作者姓名： | 杨为民 陈卫忠 李术才 杨典森 李飞 |
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| 作者单位： | 山东大学岩土与结构工程研究中心；中国科学院武汉岩土力学研究所；中国科学院武汉岩土力学研究所 山东济南250061；湖北武汉430071；山东济南250061； |
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| 基金项目： | 国家自然科学基金项目(5037905250028403)，国家重点基础研究发展计划(2002CB412704) |
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| 摘 要： | 广西龙滩水电站地下厂房所处位置地质条件复杂,岩层为陡倾角岩层,断层发育,且洞室跨度大,边墙高,在洞室开挖过程中围岩的稳定性显得十分重要。结合设计院提供的开挖方案使用快速拉格朗日差分法(FLAC)对洞室分层开挖及支护进行了数值模拟,比较分析了两个剖面加锚开挖的结果,得出了一些有益的结论。
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| 关 键 词： | 地下厂房 围岩稳定 开挖 |
| 文章编号： | 1000-4548(2005)02-0230-05 |
Analysis on stability of surrounding rock mass of Longtan large underground powerhouse with FLAC3d |
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| YANG Weimin,CHEN Weizhong,LI Shucai,YANG Diansen,LI Fei.Analysis on stability of surrounding rock mass of Longtan large underground powerhouse with FLAC3d [J].Chinese Journal of Geotechnical Engineering,2005,27(2):230-234. |
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| Authors: | YANG Weimin CHEN Weizhong LI Shucai YANG Diansen LI Fei |
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| Affiliation: | 1.Geotechnical Structural Engineering Technique Research Center of Shandong University Jinan 250061 China 2.LRSM Institute of Rock and Soil Mechanics The Chinese Academy of Sciences Wuhan 430071 China |
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| Abstract: | The geological conditions are complex in Longtan hydroelectric project. The strata are dipping steeply and the faults are developed. The caverns are constituented with long span and high side wall. So the stability of surrounding rock mass is very important during excavation. In this paper, the excavation and support of caverns are numerical simulated by fast Lagrangian method (FLAC) according to the designer’s scheme. Numerical results of two profiles considering excavation with support are compared and analyzed. Finally some useful conclusions are obtained. |
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| Keywords: | underground cavern stability of surrounding rock mass excavation |
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