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A Study on Rockfill Properties of Tankeng CFRD

机译：浅滩CFRD堆石料特性研究

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By conducting laboratory tests and performing FEM on the wetting deformation for rockfill materials of the Tankeng CFRD,this paper presents the analysis on the impact of the wetting deformation on the stress and deformation in the dam body and face slabs,and the impact of rockfill with various cementing matter contents softened and wetted by water on the stressstrain behavior of the dam body and the face slab deformation.In the design,proper consideration of the wetting deformation impact on the rockfill is deemed essential in avoiding the possible separation between the face slabs and the cushion layer and preventing large tensile stress and cracking on the face slabs. The dam has now been filled up to its crest elevation. The dam body settlement and slab deformation are both within the controllable range by the feed-back analysis on the monitoring data during the construction stage,which indicates that adopting the excavated materials with hydrophilic chemical contents is feasible,and can not only reduce the construction cost but also expand the range of usable rock materials for embankment.
机译：通过对坦克坑CFRD堆石料的湿变形进行实验室测试并进行有限元分析，分析了湿变形对坝体和面板的应力和变形的影响，以及对堆石的影响。在坝体的应力-应变行为和面板的变形上，水软化和润湿的各种胶结物含量。在设计中，考虑到湿变形对堆石的影响被认为对于避免面板和面板之间可能的分离是至关重要的。缓冲层，防止大拉应力和面板破裂。大坝现在已经填满了其最高海拔。通过对施工阶段监测数据的反馈分析，坝体沉降和平板变形均在可控范围内，表明采用亲水性化学成分的开挖材料是可行的，不仅可以降低建设成本同时也扩大了堤防可用的岩石材料范围。

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