Abstract：The slope located at the exit of left tail water tunnel of Wudongde hydropower station is a typical bedding slope with a high dip angle，and the deformation occurred in two stages during the excavation. The influences of the slope structure，the excavation at slope toe，the engineering blasting，the fault and the unloading on the slope deformation were studied with the field monitoring and the numerical simulation. The results show that the main reason of deformation is the cutting excavation at slope toe. In addition，the excavation of a tunnel with large cross section at slope toe and the excessive blasting increase the deformation. The small fault in the slope also affects the slope deformation to some extent. Therefore，it was suggested that excavation should be carried out after the slope supporting at the intersection region of tunnel and slope.
王吉亮，杨 静，郝文忠，黄孝泉，白 伟，张 熊，魏雨军，宋 涛，曾 立. 乌东德水电站左岸尾水出口陡倾顺向坡变形影响因素分析[J]. 岩石力学与工程学报, 2017, 36(9): 2194-2204.
WANG Jiliang，YANG Jing，HAO Wenzhong，HUANG Xiaoquan，BAI Wei，ZHANG Xiong，WEI Yujun，SONG Tao，ZENG Li. Factors influencing deformation of steep consequent slopes at the tail water outlet on the left bank of Wudongde hydropower station #br#. , 2017, 36(9): 2194-2204.
[1] 王吉亮，李会中，杨 静，等. 乌东德水电站右岸引水洞进口边坡稳定性研究[J]. 水利学报，2012，43(11)：1 271–1 278.(WANG Jiliang，LI Huizhong，YANG Jing，et al. Research on stability of slope at right inlet diversion tunnel of Wudong hydropower station[J]. Journal of Hydraulic Engineering，2012，43(11)：1 271–1 278.(in Chinese))
[2] 龚 涛. 顺层岩质边坡稳定性研究[硕士学位论文][D]. 西安：西安理工大学，2009. (GONG Tao. Stability study of rock slopes with bedding planes[M. S. Thesis][D]. Xi?an：Xi?an University of Technology，2009.(in Chinese))
[3] 王吉亮，杨 静，陈又华，等. 复杂层状高陡岩质边坡变形与稳定性研究[J]. 水利学报，2015，46(12)：1 414–1 422.(WANG Jiliang，YANG Jing，CHEN Youhua，et al. Study on deformation and stability of complex layered high and steep rock slope[J]. Journal of Hydraulic Engineering，2015，46(12)：1 414–1 422.(in Chinese))
[4] 黄润秋，赵建军，巨能攀，等. 汤屯高速公路顺层岩质边坡变形机制分析及治理对策研究[J]. 岩石力学与工程学报，2007，26(2)：240–246.(HUANG Runqiu，ZHAO Jianjun，JU Nengpan，et al. Study on deformation mechanism and control method of bedding rock slope along Tangtun expressway[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(2)：240–246.(in Chinese))
[5] 肖国峰，冯光乐，陈从新，等. 硬岩中顺层边坡变形特征和破坏机制分析[J]. 岩石力学与工程学报，2007，26(增2)：4 458–4 464. (XIAO Guofeng，FENG Guangle，CHEN Congxin，et al. Research on deformation and failure mechanism of moderate-dip cataclinal hard rock slope[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.2)：4 458–4 464.(in Chinese))
[6] 刘才华，徐 健，曹传林，等. 岩质边坡水力驱动型顺层滑移破坏机制分析[J]. 岩石力学与工程学报，2005，24(19)：3 529–3 533. (LIU Caihua，XU Jian，CAO Chuanlin，et al. Analysis of bedding slip failure mechanism of rock slope due to hydraulic drive[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(19)：3 529–3 533.(in Chinese))
[7] 杨天鸿，芮勇勤，李连崇，等. 顺层蠕动边坡变形破坏机制及稳定性动态分析[J]. 工程地质学报，2003，11(2)：155–161.(YANG Tianhong，RUI Yongqin，LI Lianchong，et al. Study on deformation mechanics stability of bedding creeping slope[J]. Journal of Engineering Geology，2003，11(2)：155–161.(in Chinese))
[8] 杨天鸿，芮勇勤，唐春安. 阜新海州露天矿顺层边坡变形破坏机制分析[J]. 水文地质工程地质，2001，28(4)：36–39.(YANG Tianhong，RUI Yongqin，TANG Chun?an. Study on deformation mechanism on Fuxin Haizhou open-pit bedding stratum slope[J]. Hydrology and Engineering Geology，2001，28(4)：36–39.(in Chinese))
[9] 王志勇. 含软弱夹层岩质边坡稳定性分析研究[硕士学位论文][D].长沙：中南大学，2004.(WANG Zhiyong. Research on stability assessment of rock slope with weak layer[M. S. Thesis][D]. Changsha：Changsha Central South University，2004.(in Chinese))
[10] 滕宏伟. 顺层边坡稳定性分析预测及其应用研究[硕士学位论文][D]. 重庆：重庆大学，2002.(TENG Hongwei. Research on analysis and prediction and application of bedding rock slope stability[M. S. Thesis][D]. Chongqing：Chongqing University，2002.(in Chinese))
[11] 冯 君，周德培，李安洪. 顺层岩质边坡开挖稳定性研究[J]. 岩石力学与工程学报，2005，24(9)：1 474–l 478.(FENG Jun，ZHOU Depei，LI Anhong. Research on stability of rock bedded slopes[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(9)：l 474–1 478.(in Chinese))
[12] 陈从新，黄平路，卢增木. 岩层倾角影响顺层岩石边坡稳定性的模型试验研究[J]. 岩土力学，2007，28(3)：476–481.(CHEN Congxin，HUANG Pinglu，LU Zengmu. Study on correlation between stability of consequent rock slope and obliquity of rock layer by simulation experiment[J]. Rock and Soil Mechanics，2007，28(3)：476–481.(in Chinese))
[13] 宋胜武，冯学敏，向柏宇，等. 西南水电高陡岩石边坡工程关键技术研究[J]. 岩石力学与工程学报，2011，30(1)：1–22.(SONG Shengwu，FENG Xuemin，XIANG Baiyu，et al. Research on key technologies for high and steep rock slopes of hydropower engineering in southwest China[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(1)：1–22.(in Chinese))
[14] 郝文忠，黄孝泉，王吉亮，等. 乌东德水电站左岸尾水洞出口边坡稳定性评价[J]. 人民长江，2014，45(20)：51–53.(HAO Wenzhong，HUANG Xiaoquan，WANG Jiliang，et al. Stability evaluation on tailrace outlet slope at left bank of Wudongde hydropower station[J]. Yangtze River，2014，45(20)：51–53.(in Chinese))
[15] 黄孝泉，王吉亮，郝文忠，等. 金沙江乌东德水电站左岸尾水出口边坡变形分析及加固方案专题报告[R]. 武汉：长江勘测规划设计研究有限责任公司，2014.(HUANG Xiaoquan，WANG Jiliang，HAO Wenzhong，et al. Special report of deformation analysis and reinforcement at left bank outlet of Wudongde hydropower station in Jinsha River[R]. Wuhan：Changjiang Survey Planning Design Limited Liability Company，2014.(in Chinese))
[16] 王吉亮，杨 静，李会中，等. 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.(WANG Jiliang，YANG Jing，LI Huizhong，et al. Stability of slope at left abutment of Wudongde hydropower station[J]. Journal of Jilin University：Earth Science，2013，43(2)：528–536.(in Chinese))
[17] 黄秋香，汪家林，邓建辉，等. 基于多点位移计监测成果的坡体变形特征分析[J]. 岩石力学与工程学报，2009，28(增1)：2 667–2 673. (HUANG Qiuxiang，WANG Jialin，DENG Jianhui，et al. Slope deformation character analysis based on monitoring results of multiple multi-point borehole extensometer[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(Supp.1)：2 667–2 673.(in Chinese))
[18] 丁秀丽，卢 波，张 练，等，金沙江乌东德水电站左岸尾水出口边坡施工期稳定性和支护措施研究[R]. 武汉：长江科学院水利部岩土力学与工程重点实验室，2013.(DING Xiuli，LU Bo，ZHANG Lian，et al. Study on stability and supporting measures during construction at left bank outlet of Wudongde hydropower station in Jinsha River[R]. Wuhan：Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources，2013.(in Chinese))
[19] 李维光. 爆破振动作用下顺层岩质边坡稳定性研究[博士学位论文][D]. 西南交通大学，2008.(LI Weiguang. Study on rock mass bedding slope stability under blast seism[Ph. D. Thesis][D]. Southwest Jiaotong University，2008.(in Chinese))
[20] 周莲君. 层状岩体破坏特征的试验和数值分析及其边坡稳定性研究[博士学位论文][D]. 长沙：中南大学，2009.(ZHOU Lianjun. The test and numerical analysis of the fracture characteristics of layered rock mass and its slope stability study[Ph. D. Thesis][D]. Changsha：Central South University，2009.(in Chinese))
2017, Vol. 36 
