Study on Compressive Stress of Face Slab of Ultra-high Concrete Face Rockfill Dam
In this paper, three-dimensional(3-D) finite element (FE) method is used to analyze the stresses of face slab of the 300m high concrete face rockfill dam (CFRD) before and after earthquake. Meanwhile, the effect of valley shape on the stress of face slab is considered. The results show that the maximum deflection and axial stress are located near the bottom of face slab in the central valley area before earthquake. And there are compressive stresses in mostly area of face slab. After earthquake, the positions of maximum deflection and axial stress of face slab were changed to the crest of the central valley area. As the valley aspect ratio increases, compressive stress of face slab decreases. For the 300m ultra-high CFRD, the maximum axial stresses exceed the concrete compressive strength before and after earthquake. Therefore, the compression damage of face slab should be considered during the design.
Concrete Face Rockfill Dam Face slab Compressive stress Earthquake
Yang Zhou De Gao Zou Xian Jing Kong Meng Fu
School of Hydraulic Engineering, Dalian University of Technology, Dalian, China, 116024 The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology,Dalian
国际会议
上海
英文
1420-1425
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）