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| 软弱夹层分布部位对洞室稳定性影响研究 | |
| 引用本文： | 张志强,李宁,Swoboda G.软弱夹层分布部位对洞室稳定性影响研究[J].岩石力学与工程学报,2005,24(18):3252-3257. |
| 作者姓名： | 张志强 李宁 Swoboda G |
| 作者单位： | 1. 西安理工大学,岩土工程研究所,陕西,西安,710048 2. 西安理工大学,岩土工程研究所,陕西,西安,710048;中国科学院,寒区旱区环境与工程研究所冻土工程国家重点实验室,甘肃,兰州,730000 3. 茵斯布鲁克大学,结构分析与材料强度研究所,茵斯布鲁克,A-6020 |
| 基金项目： | 国家自然科学基金资助项目(50479023)，西安理工大学“三重”基金项目 |
| 摘 要： | 应用奥地利大型岩土工程有限元分析系统FINAL研究了软弱夹层分布部位(拱顶、拱肩、边墙)对地下洞室围岩稳定性以及喷锚支护结构受力性状的影响。数值试验研究采用FINAL中独有的模拟接触面的COJO单元,该单元能够准确地反映软弱夹层在地下洞室开挖过程中的力学特性;数值试验成果对地下洞室的选址、支护结构的设计以及施工设计等具有广泛的借鉴意义与指导作用。 |
| 关 键 词： | 岩石力学 软弱夹层 地下洞室 围岩稳定 数值试验 |
| 文章编号： | 1000-6915（2005）18-3252-06 |
| 收稿时间： | 2004-03-30 |
| 修稿时间： | 2004-03-30 |
INFLUENCE OF WEAK INTERBED DISTRIBUTION ON STABILITY OF UNDERGROUND OPENINGS |
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| ZHANG Zhi-qiang,LI Ning,Swoboda G.INFLUENCE OF WEAK INTERBED DISTRIBUTION ON STABILITY OF UNDERGROUND OPENINGS[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(18):3252-3257. | |
| Authors: | ZHANG Zhi-qiang LI Ning Swoboda G |
| Abstract: | Systematic numerical tests have been carried out to study the stability of surrounding rock mass with different distributions of weak interbed(crown zone,shoulder zone and wall side zone),and the safe status of the supporting system has also been analyzed by the FEM program FINAL introduced from Austria. COJO element,a perfect element to simulate the weak interbed characteristics,has been used in all tests. Some quantitative results on influence of weak interbed respectively at crown,right shoulder and right wall are summarized,especially the displacement,stresses in surrounding rock,plastic region,and inner force in shotcrete. The results will be devoted to layout,supporting system design and construction of underground openings. |
| Keywords: | rock mechanics weak interbed underground opening stability of surrounding rock mass numerical tests |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
