• 责任者：Guo Songfeng (Key Library of Engineering Geomechanics ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Qi Shengwen
• 刊名：Journal of Engineering Geology
• 出版年：2011
• 卷期：19(6)
• 关键词：桥 ; bridges ; 地基稳定性 ; foundation stability ; 云南 ; Yunnan Province
• 页码：p.909-916
• 图表：6 illus., 2 tables, 22 refs.
• 分类号：1702
• issnNo：ISSN1004-9665
• isbnNo：CN11-3249/P

This paper examines the stability of the anchorage for a Super Cable-stayed Bridge planned to be built over Longjiang river in Yunnan Province. This paper presents the large-scale numerical models with FLAC3D-fast lagranian analysis of continua in three-dimensions. The results indicate that the displacement of the anchorage buttress in the last two steps is about 5 cm, lower than the allowable value 15 cm. The settlement of foundation pit is in the allowable limits, too. The soil needn’t to be strengthened. Because the displacement is largely dependent on the soil parameters, we also conduct the parameters sensitivity analysis. The results indicate that the deformation modulus E is ought to be assured through enough tests for its big sensitivity value.