The effect of complex groundsill and dam body ' s construction process can be considered conveniently when finite element method is used to analyze dam body ' s stress . but there is no design criterion correspondingly because of the stress concentration that is caused by load at dam heel and dam toe under elastic state . furthermore , its value is easily affected by mesh size 有限元法分析拱坝坝体应力可以较方便地考虑复杂地基条件和坝体施工过程的影响,但是由于弹性状态下拱坝坝踵、坝趾处受荷载后的应力集中现象,而且其数值受网格尺寸影响较大,因此至今无与之相应的设计准则。
The study shows that the most likely sliding path is located shallowly under the rock bed and the sliding path runs close to a line from tensile area at dam heel to dam toe . staircase sliding paths buried less than 14 meters bellow dam heel are also dangerous , but they are not the most dominant 研究表明,最危险滑移路径处于坝基面以下浅层,滑移通道为从上游坝踵拉裂区沿近直线方式向下游坝趾滑出;正常蓄水位时, 9b 、 4b坝段最危险滑移路径安全系数分别为k _ s = 4 . 15 、 3 . 05 。
Based on seismic wave method , borehole acoustic method and indoor rock mechanics test , the dynamic and static parameters of the foundation rock for the toe slab of the concrete face rockfill dam for shuibuya hydropower station are tested , and then the relationship among the rock quality , dynamic parameter and static parameter are established with the parameters obtained from the test , furthermore , the classification and the quality evaluation are made as well 摘要采用地震波法、钻孔声波法以及室内岩石力学试验法,对水布垭水电站面板坝趾板建基岩体进行了动、静参数测试,并根据所获的参数建立了岩体质量、岩体动力学和静力学参数三者之间的相关关系,对工程岩体进行了质量分级和质量评价。
According to new idea on toe slab shape design suggested by kuke and in combination with the toe slab shape design of shuibuya concrete face rockfill dam , the " y " line positioning , the shape parameter determination of standard profile , the coordinate calculation related to toe slab shape are presented in this paper 摘要根据库克建议的趾板体型设计新思想,结合水布垭面板堆石坝趾板结构的具体设计,对趾板体型设计相关的" y "线的定位、标准剖面体型参数的确定、趾板坐标的计算等进行了阐述。
坝: dam dyke; embankment趾: toe坝趾墙: toe wall矮墙;坝趾墙: toe wall坝趾齿墙: footwall; toe wall坝趾滤层: toe filter坝趾排渗体: toe drainage坝趾排水: toe drain坝趾排水层: toe drain坝趾铺盖: toe blanket坝趾消能池: toe basin坝趾应力: toe stress上游坝趾: upstream toe of dam坝趾填筑爆破法: toe shooting坝址一览表: list of dam sites坝址选择: dam site selection; selection of dam site坝址评价: site appraisal坝址平面图: site plan坝址勘探: site exploration