长江科学院院报2013，Vol.30Issue(1)：47-51,5.DOI:10.3969/j.issn.1001-5485.2013.01.009
堆石料动力残余变形特性试验研究
Experimental Study on the Dynamic Residual Deformation Property of Rock-fall Materials
巩斯熠 1黄斌2
作者信息
- 1. 中国地质大学(武汉)工程学院,武汉430074
- 2. 长江科学院水利部岩土力学与工程重点实验室,武汉430010
- 折叠
摘要
Abstract
The dynamic residual deformation property of rock-fill materials of an earth-rock dam was investigated through large-scale dynamic triaxial test. The applicability of Shen Zhujiang' s residual deformation model was also discussed. The test results indicate that sometimes conspicuous deviation exists between the results of Shen Zhujiang ' s model and the actual data, which suggests that Shen Zhujiang' s model sometimes cannot describe the entire process curve of dynamic residual deformation accurately under high dynamic stress. The influence of cyclic number and dynamic stress ratio on residual deformation was considered to modify the model proposed by Shen Zhujiang, in the purpose that the relationship between residual deformation and cyclic number could be more consistent with practice. The comparison between measured value and calculated value of residual deformation of rock-fill materials under different dynamic stresses and confining pressures shows that the modified model could accurately fit the residual volumetric strain and residual shear strain.关键词
残余变形/堆石料/动三轴试验/沈珠江模型Key words
residual deformation/ rock-fill material/ dynamic triaxial test/ Shen Zhujiang's model分类
建筑与水利引用本文复制引用
巩斯熠,黄斌..堆石料动力残余变形特性试验研究[J].长江科学院院报,2013,30(1):47-51,5.
