The toe energy dissipator research of zuojian hydroproject 左江水利枢纽坝趾消能研究
Experimental research on grouting soft rock foundation under toe slab of siping concrete faced rockfill dam 寺坪面板堆石坝趾板软岩基础灌浆试验研究
Analyses and treatment for the panning amp; scrubbing destructions on flooding - segment dam foot of huilongshan power station 溢流坝段坝趾淘刷破坏分析与处理
At the toe of thc stepped spillway if exchange a series of steps for arc section , the highe enersy dissipation can be got bu the pressure is higher in downstream icction 在坝趾处,不设反弧段比设反弧段时的消能率高,但坝下水平段的压强值较大。
The influences of the properties of alluvium deposit , the properties of diaphragm wall concrete , the construction sequence of diaphragm walls , the distance between diaphragm walls and dam toe and the shape of diaphragm walls on the stress - deformation behaviors of diaphragm walls of concrete face rockfill dams were studied 研究了覆盖层特性、防渗墙混凝土特性、防渗墙施工顺序、防渗墙与坝趾之间距离和防渗墙形状对于面板堆石坝防渗墙应力变形性状的影响。
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。