淤积泥砂对水平地运动作用时刚性坝面动压力的影响

英文篇名：Effects of sediment on dynamic pressures acting on rigid dam due to horizontal ground motion
中文刊名：地震工程与工程振动
英文刊名：Earthquake Engineering and Engineering Vibration
作者：王进廷 ; 杜修力 ; 张楚汉
英文作者：WANG Jin-ting 1 ; DU Xiu-li 2 ; ZHANG Chu-han 1 (1.Tsinghua University ; Beijing 100084 ; China ; 2.Beijing Polytechnic University ; Beijing 100022 ; China)
中文关键词：淤积泥砂 ; 水平地运动 ; 坝面动压力
英文关键词：sediment ; horizontal ground motion ; dynamic pressure
出版日期：2002-10-30
机构：清华大学水利水电工程系,北京工业大学科技处,清华大学水利水电工程系北京100084 ,北京100022 ,北京100084
年：2002
期：05
出版单位：地震工程与工程振动

摘要

文章基于固体介质、流体介质、液固两相饱和介质的时域显式有限元波动分析方法 ,研究了可压缩库水条件下淤积泥砂对水平地运动作用时刚性坝面上动压力的影响。研究中分析了作为两相介质处理的淤积泥砂的饱和度、厚度、渗透系数和孔隙率对坝面动压力的影响 ,还比较了作为流固两相介质、单相固体介质、单相重流体介质处理的不同淤积泥砂层模型间的计算结果差异。
Base on the explicit finite element schemes for analyzing dynamic response of solid, porous media, and fluid, the effects of sediment on the dynamic pressures acting on rigid dam due to horizontal ground motion are studied. In this investigation, sediment is firstly modeled as porous media and the effects of its saturation, thickness, permeability and porosity on dynamic pressures are analyzed; and then sediment is modeled as one-phase solid and one-phase fluid respectively and the computing results are compared with those obtained by modeling sediment as porous media.

引文

[1]　FenvesG .andChopraA .K .,Earthquakeanalysisofconcretegravitydamsincludingreservoirbottomabsorptionanddam water foundationrockinteraction[J].EarthquakeEngineeringandStructuralDynamics,1984,12(5):663-680.
    [2]　MedinaF .,DominguezJ.andTassoulasJ .L .,Responseofdamstoearthquakeincludingeffectsofsediment[J].JournalofStructuralEngi neering,ASCE ,1990,116(1):3108-3121
    [3]　傅作新,陆瑞明.水库的库底条件和当水结构的动水压力[J].水利学报,1987,(5):28-34.
    [4]　ChengA .H .D .,Effectsofsedimentonearthquake-inducedreservoirhydrodynamicresponse[J].JournalofEngineeringMechanics,ASCE ,1986,112(7):654-663.
    [5]　BougachaS .andTassoulasJ .L .,SeismicresponseofgravitydamsI:Modelingofsediments[J].JournalofEngineeringMechanics,ASCE ,1991,117(8):1826-1837.
    [6]　BougachaS .andTassoulasJ .L .,SeismicresponseofgravitydamsⅡ:Effectsofsediments[J].JournalofEngineeringMechanics,ASCE ,1991,117(8):1839-1850.
    [7]　ChenB .F .andHungT .K .,Hydrodynamicpressureofwaterandsedimentonrigiddam[J].JournalofEngineeringMechanics,ASCE ,1993,119(7):1411-1433.
    [8]　DominguezJ.,GallegoR .andJaponB .R .,Effectsofporoussedimentsonseismicresponseofconcretegravitydams[J].JournalofEngineer ingMechanics,ASCE ,1997,123(4):302-311.
    [9]　DuXiuli,WangJintingandHungTinkan.EffectsofSedimentontheDynamicPressureofWaterandSedimentondams[J].ChineseScienceBulletin,2001,46(7):521-524.
    [10]　ZhangChuhan,YanChengdaandWangGuanglun.Numericalsimulationofreservoirsedimentandeffectsonhydrodynamicresponseofarchdam[J].EarthquakeEngineeringandStructuralDynamics,2001,30:1817-1837.
    [11]　杜修力,王进廷,张楚汉.淤积泥砂对垂直地运动作用时刚性坝面动压力的影响研究[J].水利学报,2002.
    [12]　李小军.非线性场地地震反应分析方法的研究[D].博士学位论文,国家地震局工程力学研究所,1993.