›› 2008, Vol. 29 ›› Issue (4): 1072-1076.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Discussion on seismic coefficient of high earth-rock dams and its influence on dam slope seismic stability

ZHANG Rui1, CHI Shi-chun1, LIN Gao1, ZHANG Zong-liang2   

  1. 1. .State Key Laboratory of Coastal and Offshore Engineering, Dalian Univisity of Technology, Dalian 116024, China； 2. Kunming Design Institute of State Power Corporation; Kunming 650051, China
  • Received:2006-12-04 Online:2008-04-10 Published:2013-07-10

PDF (PC)

1400

Abstract: The seismic coefficient suggested in the present Specifications for Seismic Design of Hydraulic Structures (DL5073-1997) is suitable for earth-rock dams lower than 150 meters. While at the present time, many earth-rock dams to be constructed are higher than 150 meters. Compared with low dams, high dams get less constraint from stiffness of foundation, and its natural vibrating period becomes prolonged. During the seismic response, high order naturalvibrating period gets more opportunities to coincide with the seismic predominant period, and the vibrations of high orders are easily to be activated and amplified, which result in the seismic acceleration distribution is somewhat different from low dams. With the finite element method, the seismic acceleration distribution of high earth-rock dams is analyzed. The figure of the seismic coefficient of earth-rock dams higher than 150 meters is put forward. Based on the above analysis, further research of the slope seismic stability of earth-rock dams higher than 150m is made. The conclusion is, with the decrease of the seismic coefficient in the dam body, the critical value of safety factor of the dam slope increases.

Key words: high earth-rock dams, finite element method, acceleration distribution, stability analysis

CLC Number: 

  • TV641.1
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
    • [1] WANG Xiang-nan, LI Quan-ming, YU Yu-zhen, YU Jia-lin, LÜ He, . Simulation of the failure process of landslides based on extended finite element method [J]. Rock and Soil Mechanics, 2019, 40(6): 2435-2442.
    [2] YU Guo, XIE Mo-wen, ZHENG Zheng-qin, QIN Shi-he, DU Yan, . Research on slope stability calculation method based on GIS [J]. Rock and Soil Mechanics, 2019, 40(4): 1397-1404.
    [3] QIU Min, YUAN Qing, LI Chang-jun, XIAO Chao-chao, . Comparative study of calculation methods for undrained shear strength of clay based on cavity expansion theory [J]. Rock and Soil Mechanics, 2019, 40(3): 1059-1066.
    [4] ZHENG An-xing, LUO Xian-qi, CHEN Zhen-hua, . Hydraulic fracturing coupling model of rock mass based on extended finite element method [J]. Rock and Soil Mechanics, 2019, 40(2): 799-808.
    [5] SONG Jia, GU Quan, XU Cheng-shun, DU Xiu-li，. Implementation of fully explicit method for dynamic equation of saturated soil in OpenSees [J]. , 2018, 39(9): 3477-3485.
    [6] QIN Yu-qiao, TANG Hua, FENG Zhen-yang, YIN Xiao-tao, WANG Dong-ying, . Slope stability evaluation by clustering analysis [J]. , 2018, 39(8): 2977-2983.
    [7] SONG Jia, DU Xiu-li, XU Cheng-shun, SUN Bao-yin，. Research on the dynamic responses of saturated porous media-pile foundation-superstructure system [J]. , 2018, 39(8): 3061-3070.
    [8] LI Qing-chuan, LI Shu-cai, WANG Han-peng, ZHANG Hong-jun,ZHANG Bing, ZHANG Yu-qiang,. Stability analysis and numerical experiment study of excavation face for tunnels overlaid by quicksand stratum [J]. , 2018, 39(7): 2681-2690.
    [9] ZHANG Hai-tao, LUO Xian-qi, SHEN Hui, BI Jin-feng. Vector-sum-based slip surface stress method for analysing slip mass stability [J]. , 2018, 39(5): 1691-1698.
    [10] LI Ning, GUO Shuang-feng, YAO Xian-chun,. Further study of stability analysis methods of high rock slopes [J]. , 2018, 39(2): 397-406.
    [11] LUO Xian-qi, ZHENG An-xing,. Application of extended finite element method in modelling fracture of rock mass [J]. , 2018, 39(2): 728-734.
    [12] LIU Zhong-yu, ZHANG Jia-chao, ZHENG Zhan-lei, GUAN Cong. Finite element analysis of two-dimensional Biot’s consolidation with Hansbo’s flow [J]. Rock and Soil Mechanics, 2018, 39(12): 4617-4626.
    [13] LIU Zhen-ping, DU Gen-ming, CAI Jie, ZHOU Fan, LIU Jian, BIAN Kang，. Seamless coupling method of 3DGIS combined with 3DFEM simulation based on MeshPy [J]. , 2018, 39(10): 3841-3852.
    [14] TU Yi-liang, LIU Xin-rong, ZHONG Zu-liang, DU Li-bing, WANG Peng, . The unity of three types of slope failure criteria [J]. , 2018, 39(1): 173-180.
    [15] ZHU Yan-peng, YANG Xiao-yu, MA Xiao-rui, YANG Xiao-hui, YE Shuai-hua, . Several questions of double reduction method for slope stability analysis [J]. , 2018, 39(1): 331-338.
    Viewed
    Full text


    Abstract

    Cited
      Shared   
      Discussed   
    [1] WANG Gui-jie, XIE Mo-wen , QIU Cheng, ESAKI Tetsuro. Application of D-INSAR technique to landslide monitoring[J]. , 2010, 31(4): 1337 -1344 .
    [2] LEI Ming-feng, PENG Li-min, SHI Cheng-hua, AN Yong-lin. Research on construction spatial effects in large-long-deep foundation pit[J]. , 2010, 31(5): 1579 -1584 .
    [3] ZHANG Jian-min，WANG Fu-qiang. Post-liquefaction flow failure of saturated dilative sands and its mechanism[J]. , 2010, 31(9): 2711 -2715 .
    [4] LI Xue-ping，YAO Yun-sheng，WANG Yang，LI Jing-gang. Dynamic risk assessment of induced earthquake risk in head area of Three Gorges Reservoir based on GIS and multi-source information fusion techniques[J]. , 2010, 31(9): 2941 -2945 .
    [5] LI Zhao-yan, SUN Rui, CAO Zhen-zhong, SHI Jiang-hua, DONG Lin, YUAN Xiao-mi. Feasibility of cone penetration test to evaluating Bachu earthquake liquefaction[J]. , 2010, 31(12): 3907 -3912 .
    [6] YANG Yun-ming, CHAI Hua-you, WEI Chang-fu. Numerical implementation of a yield vertex non-coaxial model[J]. , 2010, 31(S2): 373 -377 .
    [7] SUN Yong. Research on determining horizontal foundation coefficient of anti-slide pile with pressuremeter test[J]. , 2009, 30(3): 699 -702 .
    [8] LENG Yi，LUAN Mao-tian，XU Cheng-shun，MA Tai-lei. Experimental research on behaviors of saturated sand subject to drained shear strength under complex stress conditions[J]. , 2009, 30(6): 1620 -1626 .
    [9] QIAN Yue-hong , LI Jie , CHEN Wen-tao , LI Wen-pei. Investigation of characteristics of failure nearby deep tunnel considering unloading time[J]. , 2011, 32(5): 1347 -1352 .
    [10] WANG Lin , YANG Hai-peng , NIE Qing-ke. Numerical simulation for building settlements and its distribution characteristics using engineering analogy[J]. , 2009, 30(S2): 485 -488 .
    Copyright © Rock and Soil Mechanics, All Rights Reserved.
    Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
    Powered by Beijing Magtech Co. Ltd