Journal of Jilin University(Earth Science Edition) ›› 2018, Vol. 48 ›› Issue (5): 1546-1555.doi: 10.13278/j.cnki.jjuese.20180179

Previous Articles    

Deformation Characteristics and Stability Analysis of Deposit Slope After Initial Impoundment

Tang Junfeng1, Tang Xuemei2, Zeng Xiangnong3, Yang Jun1, Li Xuezheng1   

  1. 1. PowerChina Zhongnan Engineering Corporation Limited, Changsha 410014, China;
    2. Hunan Vocational Institute of Safety & Technology, Changsha 410151, China;
    3. Changsha Environmental Protection College, Changsha 410004, China
  • Received:2018-07-04 Published:2018-11-20
  • Supported by:
    Supported by National Natural Science Foundation of China (51078151)

PDF (PC)

841

Abstract: A geological disaster induced by reservoir impoundment is common. It is important to study the characteristics and stability of deposit slope at reservoir bank before and after impoundment for prevention of such a disaster. Based on the in-situ detailed engineering geological investigation and monitoring materials, the structural and deformation characteristics of deposit slope were analyzed, and the formation and deformation mechanisms were discussed in this study. Finally, based on the discrete element method, the stability of this slope was evaluated. Based on the above research results, the deposit slope was formed from the ancient slide, and the reservoir water level raised by nearly 40m in two months, thus activating the ancient landslides and resulting in the deformation. The engineering treatment such as drainage tunnels and drainage holes slow down the deformation of the slope dramatically, and the deformation of some observation points has a convergence trend.

Key words: deposit slope, deformation character, deformation mechanism, stability

CLC Number: 

  • TU45
[1] 丁王飞,周云涛. 三峡库区蓄水期间类土质岸坡断裂解体机制研究[J]. 岩土力学,2017,38(1):197-204. Ding Wangfei, Zhou Yuntao. Fracture Disintegration Mechanism for Quasi Earthy Bank Slope During Impounding in Three Gorges Reservoir[J]. Rock and Soil Mechanics, 2017, 38(1):197-204.
[2] 黄波林,殷跃平. 水库区滑坡涌浪风险评估技术研究[J]. 岩石力学与工程学报,2018,37(3):621-629. Huang Bolin, Yin Yueping. Risk Assessment Research on Impulse Wave Generated by Landslide in Reservoir[J]. Chinese Journal of Rock Mechanics and Engineering, 2018, 37(3):621-629.
[3] Huang B, Yin Y P, Du C. Risk Management Study on Impulse Waves Generated by Hongyanzi Landslide in Three Gorges Reservoir of China on June 24, 2015[J]. Landslides, 2016, 13(3):603-616.
[4] 宋丹青, 宋宏权.库水位升降作用下库岸滑坡稳定性研究[J].东北大学学报(自然科学版),2017,38(5):735-739. Song Danqing, Song Hongquan. Stability Studies of Reservoir Landslide Under Reservoir Water Level FlUctuation[J]. Journal of Northeastern University (Natural Sacience), 2017, 38(5):735-739.
[5] 韩凌风,秦荣,吴实渊. 库水位升降作用下库岸边坡渗流特征研究[J]. 工程勘察,2014(7):26-30. Han Lingfeng, Qin Rong, Wu Shiyuan. Study on Seepage Characteristics of Reservoir Bank Slopes Under Water Level Fluctutation[J]. Geotechnical Investigation & Surveying, 2014(7):26-30.
[6] 王常明,张索煜,李硕. 伊通软土的次固结特性[J].吉林大学学报(地球科学版),2018,48(3):799-804. Wang Changming, Zhang Suoyu, Li Shuo. Secondary Consolidation Characteristics of Yitong Soft Soil[J]. Journal of Jilin University (Earth Science Edition), 2018, 48(3):799-804.
[7] 邓建辉,陈菲,尹虎,等.泸定县四湾村滑坡的地质成因与稳定评价[J].岩石力学与工程学报,2007,26(10):1945-1950. Deng Jianhui, Chen Fei, Yin Hu, et al. Geological Origin and Stability Evaluation of Siwancun Landslide in Luding County[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(10):1945-1950.
[8] Shuzui H. Process of Slip-Surface Development and Formation of Slip-Surface Clay in Landslides in Tertiary Volcanic Rocks, Japan[J]. Engineering Geology,2001,61(4):199-219.
[9] Tang Junfeng, Wang Yongqiang, Tang Xuemei.Research on Deformation Mechanics of Mayanpo Slope Creep Deformation Rock Mass[C]//ISRM-Sponsored International Symposium on Rock Mechanics:Rock Characterisation, Modelling and Engineering Design Methods. Hong Kong:University of Hong Kong, 2009.
[10] Du J, Yin K, Lacasse S. Displacement Prediction in Colluvial Landslides, Three Gorges Reservoir, China[J]. Landslides, 2013, 10(2):203-218.
[11] Guo D, Masanori H, Jia H. Influential Factors on Slope Stability and Landslide Mobility[J]. American Society of Civil Engineers, 2013, 31(8):247-254.
[12] Komac M, Holley R, Mahapatra P, et al. Coupling of GPS/GNSS and Radar Interferometric Data for a 3D Surface Displacement Monitoring of Landslides[J]. Landslides, 2014, 12(2):241-257.
[13] BenoitL, Briole P, Martin O, et al. Monitoring Landslide Displacements with the Geocube Wireless Network of Low-Cost GPS[J]. Engineering Geology, 2015, 195:111-121.
[14] 徐湘涛,汪家林,黄润秋.紫坪铺水利枢纽工程左岸坝前堆积体变形破坏机制研究[J]. 岩石力学与工程学报,2008,27(增刊1):2642-2650. Xu Xiangtao, Wang Jialin, Huang Runqiu. Research on Deformation and Failure Mechanism of the Talus Slope Located at Left Riverbank Ahead of the Dam of Zipingpu Hudraulic Project[J]. Chinese Journal of Rock Mechanics and Engineering, 2008, 27(Sup.1):2642-2650.
[15] 张玉,徐伟亚,石崇,等.大型滑坡堆积体稳定性的三维数值分析[J]. 岩土力学,2011,32(11):3487-3496. Zhang Yu, Xu Weiya, Shi Chong, et al. Three-Dimensional Numerical Analysis of Stability of Large-Scale Landslide Accumulation Body[J]. Rock and Soil Mechanics, 2011, 32(11):3487-3496.
[16] 江文才,巫锡勇,孙春卫,等. 堆积体边坡及危岩体稳定性分析[J]. 铁道建筑,2018(1):121-124. Jiang Wencai, Wu Xiyong, Sun Chunwei, et al. Stability Analysis of Deposit Slope and Dangerous Rockmass[J]. Railway Engineering, 2018(1):121-124.
[17] 丁凤凤,焦进勇. 毛家河水电站堆积体边坡稳定性评价及治理措施[J]. 地质学刊,2017,41(4):678-684. Ding Fengfeng, Jao Jinyong. The Stability Evaluation and Control Measures of Deposit Slope in the Maojiahe Hydro-Power Station in Guizhou Province[J]. Journal of Geology, 2017,41(4):678-684.
[18] 吕建红,袁宝远.边坡监测与快速反馈分析[J]. 河海大学学报,1999,27(6):98-102. Lü Jianhong,Yuan Baoyuan. Study on Slope Monitoring and Quick Feedback[J]. Journal of Hohai University, 1999, 27(6):98-102.
[19] 袁培进,吴铭江,陆遐龄,等.长江三峡永久船闸高边坡预应力锚索监测[J]. 岩土力学,2003,24(增刊1):198-201. Yuan Peijin, Wu Mingjiang, Lu Xialing, et al. Monitoring of Prestressing Anchors in High Slope for Three Gorge Projects Permanent Shiplock[J]. Rock and Soil Mechanics, 2003, 24(Sup.1):198-201.
[20] 许建聪,尚岳全. 降雨作用下碎石土滑坡解体变形破坏机制研究[J]. 岩土力学,2008,29(1):106-118. Xu Jiancong, Shang Yuequan. Study on Mechanism of Disintegration Deformation and Failure of Debris Landslide Under Rainfall[J]. Rock and Soil Mechanics, 2008, 29(1):106-118.
[21] 唐雪梅,李夕兵,唐军峰. 顺层古滑坡体变形特征及综合治理[J]. 工程勘察,2010(9):13-17. Tang Xuemei, Li Xibing, Tang Junfeng. Deformation Characteristics and Comprehensive Treatment of a Bedding Ancient Landslide[J]. Geotechnical Investigation & Surveying, 2010(9):13-17.
[22] 张世殊,裴向军,母剑桥,等.溪洛渡水库星光三组倾倒变形体在水库蓄水作用下发展演化机制分析[J]. 岩石力学与工程学报,2015,34(增刊2):4091-4098. Zhang Shishu, Pei Xiangjun, Mu Jianqiao, et al. Evolument Mechanisms Analysis of Xingguangsanzu Toppling Deformation Bodies Under Condition of Impound Water of Xiluodu Hydropower Station[J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(Sup. 2):4091-4098.
[1] Zhang Bingxian. Deformation Mechanism and Stability Analysis of Bank Slope in Downstream of Yuqu River in Tibet [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(5): 1539-1545.
[2] Li Ang, Ju Linbo, Zhang Liyan. Relationship Between Hydrocarbon Accumulation and Paleo-Mesozoic Tectonic Evolution Characteristics of Gucheng Lower Uplift in Tarim Basin [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(2): 545-555.
[3] Xi Jianjun, Zeng Zhaofa, Huang Ling, Cui Dandan, Wang Zhejiang. Characteristics of the Signal Polarization Field in Array Type Ground Penetrating Radar [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(2): 633-644.
[4] Zhang Shuliang, Li Yan, Wang Xia, Li Bin, Lü Fang. Outdoor Observation Evidence of the Meta-Instability State [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(2): 603-609.
[5] Ma Jianquan, Wang Nianqin, Zhang Xinshe. Analysis on Slope Stability Based on Local Factor of Safety [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(2): 533-540.
[6] Lan Kai, Liu Mingguo, Chao Wenxue. Determination of Collapse Pressure for Deviated Wellbore in Transversely Isotropic Water-Sensitive Formation [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(1): 198-206.
[7] Shang Yanjun, Yang Zhifa, Li Lihui, Li Tianbin, He Wantong. Study of the Engineering Geological Conditions and Rock Mass Stability of Heidong Large Ancient Underground Caverns [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(1): 214-224.
[8] Zhou Hongfu, Wang Chunshan, Nie Dexin. Influence of Deformation Modulus of Fault Rock Masses on Dam Foundation Stability [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(4): 1254-1259.
[9] Fu Xiaofei，Xiao Jianhua，Meng Lingdong. Fault Deformation Mechanisms and Internal Structure Characteristics of Fault Zone in Pure Sandstone [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(1): 25-37.
[10] Zhi Momo,Shang Yuequan,Xu Xinghua. Stability Analysis of Gravelly Soil Landslide Using Multiple Properties Regression Model with One Variable [J]. Journal of Jilin University(Earth Science Edition), 2013, 43(3): 883-890.
[11] Wang Ke, Wang Changming, Wang Bin, Yao Kang, Wang Tianzuo. Comparative Analysis on Slope Stability Based on Morgenstern-Price Method and Strength Reduction Method [J]. Journal of Jilin University(Earth Science Edition), 2013, 43(3): 902-907.
[12] Yan Zhixin,Ma Guozhe,Long Zhe,Duan Jian,Ren Zhihua,Peng Ningbo,Liu Zizhen. Quantitatively Study on Regional Tectonic Stability Evaluation at Nappe Boundary Zones in Northeast Margin of Qinghai-Tibet Plateau: Longmenshan Nappe as an Example [J]. Journal of Jilin University(Earth Science Edition), 2013, 43(2): 484-493.
[13] 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 University(Earth Science Edition), 2013, 43(2): 528-536.
[14] Nian Tingkai，Zhang Keli，Liu Hongshuai，Xu Haiyang. Stability and Failure Mechanism of ThreeDimensional Slope Using Strength Reduction Method [J]. Journal of Jilin University(Earth Science Edition), 2013, 43(1): 178-185.
[15] Zhang Zhi-hou，Wu Le-uan. Correlation Coefficient Method for Downward Continuation of Potential Fields [J]. Journal of Jilin University(Earth Science Edition), 2012, 42(6): 1912-1919.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Earth Science Edition), All Rights Reserved.
Tel: +86-431-88502374；13756165364　E-mail: xuebao1956@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd