|
|||||
|
|
| 乌东德水电站左岸拱肩槽边坡稳定性 | |
| 引用本文： | 王吉亮,杨静,李会中,黄孝泉,刘冲平,白伟,郝文忠,朱永生.乌东德水电站左岸拱肩槽边坡稳定性[J].吉林大学学报(地球科学版),2013,43(2):528-536. |
| 作者姓名： | 王吉亮 杨静 李会中 黄孝泉 刘冲平 白伟 郝文忠 朱永生 |
| 作者单位： | 1.上海交通大学土木工程博士后科研流动站， 上海200240; 2.长江勘测规划设计研究院， 武汉430010; 3.长江三峡勘测研究院有限公司， 武汉430074; 4.三峡大学土木与建筑学院， 湖北 宜昌443002; 5.依泰斯卡（武汉）咨询有限公司， 武汉430074 |
| 基金项目： | 国家“973”计划项目(2011CB013500);水利部公益性行业科研专项项目(201001008);国家大坝安全工程技术研究中心研发课题(2011NDS010) |
| 摘 要： | 在对拱肩槽自然边坡工程地质条件详细调查的基础上，采用宏观地质分析和极限平衡法、数值模拟法相结合的研究手段，分层次对乌东德水电站左岸拱肩槽人工边坡整体稳定和局部稳定性进行了系统研究。研究表明乌东德水电站左岸拱肩槽边坡整体稳定性较好，三维离散元数值模拟结果显示，人工边坡变形以少量回弹变形为主，变形特征不突出，稳定性系数为1.4~1.6。在分析边坡开挖后可能形成的块体边界条件基础上，提出了人工边坡可能出现的块体失稳模式，以影响块体稳定性的结构面几何特征、结构面性状和结构面卸荷松弛张开特征入手，建立块体稳定性工程地质评价标准，对块体稳定性进行了宏观地质分析，并采用三维刚体极限平衡方法对可能产生的块体模型进行了计算分析，得到块体开挖后的稳定系数。结果表明，人工边坡可能出现块体多处于基本稳定状态。综合整体稳定性和局部稳定性研究成果，提出人工边坡加固方案建议。研究成果为工程设计与施工提供了重要依据，并对类似工程提供了可以借鉴的经验。 |
| 关 键 词： | 岩石高边坡 工程地质 三维离散元 失稳模式分析 三维极限平衡法 |
| 收稿时间： | 2012-06-09 |
Stability of Slope at Left Abutment of Wudongde Hydropower Station |
|
| Wang Jiliang,Yang Jing,Li Huizhong,Huang Xiaoquan,Liu Chongping,Bai Wei,Hao Wenzhong,Zhu Yongsheng.Stability of Slope at Left Abutment of Wudongde Hydropower Station[J].Journal of Jilin Unviersity:Earth Science Edition,2013,43(2):528-536. | |
| Authors: | Wang Jiliang Yang Jing Li Huizhong Huang Xiaoquan Liu Chongping Bai Wei Hao Wenzhong Zhu Yongsheng |
| Institution: | 1.Postdoctoral Flow Station of Civil Engineering and Architecture,Shanghai Jiaotong University, Shanghai200240, China; 2.Changjiang Institute of Survey Planning Design and Research, Wuhan430010,China; 3.Three Gorges Geotechnical Consultants Co.,Ltd., Wuhan430074,China; 4.College of Civil Engineering and Architecture,China Three Gorges University，Yichang443002,Hubei,China; 5. ITASCA Consulting China Ltd., Wuhan430074,China |
| Abstract: | Based on detailed study engineering geological conditions of slope at left abutment of Wudongde hydropower station, using a combination research means and methods of engineering geological analysis evaluation，limit equilibrium method and numerical calculation, the global and local stability of artificial slope at left abutment of Wudongde hydropower station is studied. The results show that the slope is stable as a whole from 3D distinct element simulation. The safety coefficient is 1.4-1.6 of the artificial slope is among 1.4 and 1.6 and its deformation is dominated by a small amount of rebound deformation and deformation characteristics without highlighting. Based on analyzing boundary condition of block formed after excavation, block instability mode was proposed. Starting with block stability influencing factors：geometric features, property and unloading and relaxation feature of structural plane, a block stability engineering geological evaluation standards is established and is applied in this project. A 3D rigid limit equilibrium method is used to analyze the stability of the potential failure block in abutment slope. The results show that most block was basically stable. Then some reinforcement measures are put forward for the high slopes based on global and local stability of slopes.The research results provide an important basis for design and construction. |
| Keywords: | high rock slope engineering geology 3D distinct element method instability mode analysis 3D limit equilibrium analysis method |
| 本文献已被 CNKI 等数据库收录！ | |
| 点击此处可从《吉林大学学报(地球科学版)》浏览原始摘要信息 | |
| 点击此处可从《吉林大学学报(地球科学版)》下载免费的PDF全文 | |