基于Quake/W和Slope/W耦合方法的地震作用下水库边坡稳定性的分析——以小锡伯提水库为例
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
为更准确地分析地震作用下水库边坡的稳定性,结合地质勘察资料,选取典型边坡断面利用Quake/W和Slope/W耦合建立数值模型,以小锡伯提水库为例,分析其在水平地震波加速度峰值为0.05g的情况下,不同监测点的位移、加速度、速度响应情况以及边坡的位移场、应力场、应变场,并对地震作用下安全系数时程曲线进行解析。结果表明:地震作用下边坡的安全系数由天然状态下的1.036降到0.892,稳定性显著降低,不满足工程长期运行安全要求;最危险滑面在边坡中部,呈近似圆形沿破碎带下滑,与地质勘探结果相吻合。本文为利用Quake/W和Slope/W耦合分析解决边坡动力问题提供了参考案例。
To analyze the stabitity of reservoir slope under earthquake more accurately,combined with the geological survey data,typical slope section's numerical model was established by Quake/W coupled with Slope/W.A case study of xiaoxiboti reservoir,the displacement,acceleration and velocity trend of different monitoring points,and the displacement field,stress field and strain field of slope were analyzed at the horizontal seismic wave acceleration's peak value was 0.05 g.Meanwhile,the FOS time history wave was analyzed.The results shows that the FOS of slope under earthquake is 0.892 while it is 1.036 under natural state,and the stability of slope is significantly dropped down that means it does not meet the safety requirement of the long running of project.The critical slip surface is at the middle of slope and is nearly a circle.This is consistent with the geological exploration.This paper also provides a reference example to solve slope dynamic problem by Quake/W coupled with Slope/W.
引文
[1]郑颖人,叶海林,黄润秋.地震边坡破坏机制及其破裂面的分析探讨[J].岩石力学与工程学报,2009,28(8):1714-1723.ZHENG Yingren,YE Hailin,HUANG Runqiu.Analysis and discussion of failure mechanism and fracture surface of slope under earthquake[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(8):1714-1723.
    [2]康永君,杨军,宋二祥.地震作用下边坡安全系数时程计算及参数研究[J].岩土力学,2011,32(1):261-268.KANG Yongjun,YANG Jun,SONG Erxiang.Calculation method and parameter research for time-history of factor of safety of slopes subjected to seismic load[J].Rock and Soil Mechanics,2011,32(1):261-268.
    [3]刘红帅,薄景山,刘德东.岩土边坡地震稳定性评价方法研究进展[J].防灾科技学院学报,2007,9(3):20-27.LIU Hongshuai,BO Jingshan,LIU Dedong.Development on Study of Seismic Stability Evaluation Methods of Rocksoil Slopes[J].J of Institute of Disaster-Prevention Science and Technology,2007,9(3):20-27.
    [4]李亮,褚雪松,庞峰,等.地震边坡稳定性分析的拟静力方法适用性探讨[J].世界地震工程,2012,28(2):57-63.LI Liang,CHU Xuesong,PANG Feng,et al.Discussion on suitability of pseudo-static method in seismic slope stability analysis[J].World Earthquake Engineering,2012,28(2):57-63.
    [5]言志信,张森,张学东,等.地震边坡失稳机理及稳定性分析[J].工程地质学报,2010,18(6):844-850.YAN Zhixin,ZHANG Sen,ZHANG Xuedong,et al.Failure mechanism and stability analysis of slope and earthquake[J].Journal of Engineering Geology,2010,18(6):844-850.
    [6]刘春玲,祁生文,童立强,等.利用FLAC3D分析某边坡地震稳定性[J].岩石力学与工程学报,2004,23(16):2730-2733.LIU Chunling,QI Shengwen,TONG Liqiang,et al.Stability Analysis of Slope under Earthquake With FLAC3D[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(16):2730-2733.
    [7]张友锋,袁海平.FLAC3D在地震边坡稳定性分析中的应用[J].江西理工大学学报,2008,29(5):23-26.ZHANG Youfeng,YUAN Haiping.The Application of FLAC3D to the Analysis of Slope stability in earthquake[J].Journal of JIANGXI university of science and technology,2008,29(5):23-26.
    [8]徐光兴,姚令侃,李朝红,等.边坡地震动力响应规律及地震动参数影响研究[J].岩土工程学报,2008,30(6):918-923.XU Guang Xing,YAO Lingkan,LI Chaohong,et al.Dynamic response of slopes under earthquakes and influence of ground motion parameters[J].Chinese Journal of Geotechnical Engineering,2008,30(6):918-923.
    [9]刘君,孔宪京.卫生填埋场复合边坡地震稳定性和永久变形分析[J].岩土力学,2004,25(5):778-782.LIU Jun,KONG Xianjing.Seismic stability and permanent displacement analysis of a solid waste landfill slope containing geomembrane[J].Rock and Soil Mechanics,2004,25(5):778-782.
    [10]陈云敏,柯瀚,凌道盛.城市垃圾填埋体的动力特性及地震响应[J].土木工程学报,2002,35(3):66-72.CHEN Yunmin,KE Han,LING Daosheng.Dynamic properties and seismic response of municipal solid waste[J].China Civil Engineering Journal,2002,35(3):66-72.
    [11]陈星,李建林,王家成.基于FLAC3D的边坡地震反应分析[J].中国农村水利水电,2010(1):59-62.CHEN Xing,LI Jianlin,WANG Jiacheng.Seismic Response Analysis of Slope Based on FLAC3D[J].China Rural Water and Hydropower,2010(1)59-62.
    [12]樊剑,刘铁,魏俊杰.基于小波包变换的人工地震波合成[J].华中科技大学学报:自然科学版,2008,36(3):42-45.FAN Jian,LIU Tie,WEI Junjie.Generation of artificial earthquakes via the wavelet packet transform[J].J Huazhong Univ of Sci&Tech:Natural Science Edition,2008,36(3):42-45.
    [13]程建军,廖小平,王浩,等.滑坡推力计算方法的对比研究与应用[J].水文地质工程地质,2008(1):44-48.CHENG Jianjun,LIAO Xiaoping,WANG Hao,et al.Comparative research and application of landslide thrust calculation methods[J].Hydrogeology and Engineering Geology,2008(1):44-48.
    [14]刘永明.农九师166团小锡伯提水库工程地质勘察报告[R].乌鲁木齐:新疆生产建设兵团勘测规划设计研究院,2011:22-32.
    [15]刘红帅,薄景山,刘德东.岩土边坡地震稳定性分析研究评述[J].地震工程与工程振动,2005,25(1):64-71.LIU Hongshuai,BO Jingshan,LIU Dedong.Review on study of seismic stability analysis of rock-soil slopes[J].Earthquake Engineering and Engineering Vibration,2005,25(1):64-71.
    [16]刘汉龙,费康,高玉峰.边坡地震稳定性时程分析方法[J].岩土力学,2003,24(4):553-557.LIU Hanlong,FEI Kang,GAO Yufeng.Time history analysis method of slope seismic stability[J].Rock and Soil Mechanics,2003,24(4):553-557.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心