摘要
主次堆石体的合理分区直接影响到面板应力、变形、稳定性以及工程造价.论文以蓼叶水库混凝土面板堆石坝为背景,采用Duncan-Chang EK非线性弹性模型,利用ANSYS中的APDL语言二次开发模型单元,进行3种不同的主次堆石体设计方案(仰倾坡比1∶0.2,俯倾坡比1∶0.2,俯倾坡比1∶0.6)的数值计算和对比分析.结果表明:综合考虑稳定、变形、应力水平条件,以主次堆石体分区俯倾坡比1∶0.6方案最优.该结论可为类似堆石坝设计提供参考.
The justifiable distinction between primary and secondary rockfill zones directly effects the stress,deformation,staility and engineering cost of the concrete face plate.This paper researches on the three different rockfill zones schemes such as supine slope 1∶0.2,prone slope 1∶0.2,and prone slope 1∶0.6 based on the Liaoye concrete-faced rockfill dam with the Duncan-Chang model and the software ANSYS.The results show that the primary and secondary rockfill zones scheme with prone slope 1∶0.6 is best,comprehensively considering stability,deformation and stress level;this conclusion can provide reference for similar rockfill dam design.
出处
《三峡大学学报（自然科学版）》
CAS
2011年第1期21-23,共3页
Journal of China Three Gorges University：Natural Sciences
基金
湖北省教育厅基金(B20101102)
武汉科技大学校基金(2009xz20)
关键词
混凝土面板堆石坝
主次堆石体
应力应变分析
邓肯张EK模型
concrete-faced rockfill dam
primary and secondary rockfills
stress-strain analysis
Duncan-Chang EK model
