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- W3214077434 abstract "为了研究锦屏一级高拱坝工程在蓄水运行后,坝肩坝基软岩结构面在应力场、渗流场耦合作用下的弱化效应,以及在考虑这种弱化效应条件下分析高拱坝工程的坝肩稳定问题,首先通过现场采集该工程坝肩软岩和结构面岩样,制备相似试件,在MTS岩石力学测试系统上进行水岩耦合三轴压缩试验,获得了坝肩软岩和结构面强度参数的弱化率,为拱坝坝肩稳定模型试验提供结构面降强幅度的依据.然后,针对拱坝坝肩稳定问题,开展了加固地基条件下高拱坝三维地质力学模型综合法破坏试验,在试验中,根据弱化试验成果确定了结构面的综合降强幅度为30％,并研制了适用于各类软弱结构面强度弱化特性的变温相似材料,用于在模型中模拟结构面的弱化效应.通过试验获得了坝与地基的变形分布特性,坝肩坝基失稳的破坏形态和破坏机理,得出坝肩稳定综合法试验安全系数为5.2～6.0,评价了拱坝工程的稳定安全性.研究成果为工程的设计施工和安全运行提供了重要科学依据." @default.
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- W3214077434 date "2016-01-01" @default.
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- W3214077434 title "Study on weakening effect of structural plane and stability analysis of Jinping I high arch dam" @default.
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