| 复杂楔形体组合下的岩质高边坡稳定分析 |
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| 引用本文： | 郑文棠,徐卫亚,张治亮,曾涛,吴关叶,徐建强.复杂楔形体组合下的岩质高边坡稳定分析[J].长江科学院院报,2008,25(5). |
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| 作者姓名： | 郑文棠 徐卫亚 张治亮 曾涛 吴关叶 徐建强 |
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| 作者单位： | 河海大学,岩土工程研究所,南京,210098;中国水电顾问集团,华东勘测设计研究院,杭州,310014 |
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| 基金项目： | 国家内然科学基金重点项目，国家重点基础研究发展计划(973计划) |
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| 摘 要： | 金沙江白鹤滩水电站左坝肩下游岩质高边坡受多组楔形体组合,其在拱端推力下的稳定性及工程施工下对左坝肩岩体的影响,对该工程意义重大.探讨了基于三维可变形离散元和大变形拉格朗日有限差分法相结合的方法,从定性和定量分析的角度,分析了白鹤滩水电站左坝肩下游楔形体的破坏运动模式、先后解体顺序、拱端推力下及工程施工下的稳定性及对左坝肩岩体的影响.根据上述两方法相结合的数值分析结果(安全系数小于1.1),并结合现场工程地质评价,认为在自然边坡及蓄水条件下,左坝肩下游高边坡属于潜在不稳定边坡,需进一步研究.
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| 关 键 词： | 岩质高边坡 三维可变形离散元 白鹤滩水电站 楔形体 |
Stability of High Rock Slope Formed by Complex Wedge |
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| ZHENG Wen-tang,XU Wei-ya,ZHANG Zhi-liang,ZENG Tao,WU Guan-ye,XU Jian-qiang.Stability of High Rock Slope Formed by Complex Wedge[J].Journal of Yangtze River Scientific Research Institute,2008,25(5). |
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| Authors: | ZHENG Wen-tang XU Wei-ya ZHANG Zhi-liang ZENG Tao WU Guan-ye XU Jian-qiang |
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| Affiliation: | ZHENG Wen-tang1,XU Wei-ya1,ZHANG Zhi-liang1,ZENG Tao1,WU Guan-ye2,XU Jian-qiang2(1.Research Institute of Geotechnical Engineering,Hohai University,Nanjing 210098,China,2.East China Hydropower Investigation , Design Institute,CHECC,Hangzhou 310014,China) |
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| Abstract: | Baihetan Hydropower Station is located on Jinsha River.As the downstream high rock slope at left dam abutment is composed of several groups of wedge,thus,its stability under the thrust of arch and construction has great significance to the project.In this paper,3D deformable discrete element method and 3D large deformable lagrange finite difference method are combined.The failure mode and the disintegration sequence of wedge are analyzed qualitatively and quantitatively.And its stability with fixed or chang... |
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| Keywords: | high rock slope 3D deformable discrete element method Baihetan Hydropower Station Wedge |
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