文章摘要
欧阳君,林 飞,刘秋英,钟翔熹.基于ABAQUS的土石坝稳定渗流期应力应变分析Journal of Water Resources and Water Engineering[J].,2012,23(2):104-108
基于ABAQUS的土石坝稳定渗流期应力应变分析
Stress and strain analysis for earth rock-fill dam during stable seepage period based on ABAQUS
Received:November 15, 2011  Revised:December 28, 2011
DOI:10.11705/j.issn.1672-643X.2012.02.027
中文关键词: ABAQUS软件  Duncan-Chang模型  土石坝  稳定渗流期  应力应变分析
英文关键词: ABAQUS software  Duncan-Chang model  earth rock-fill dam  stable seepage period  stress-strain analysis
基金项目:
Author NameAffiliation
OUYANG Jun Water Conservancy and Hydropower Survey and Design Institute of Hunan Province, Changsha 410007, China [KH*3D] 
LIN Fei Water Conservancy and Hydropower Survey and Design Institute of Hunan Province, Changsha 410007, China [KH*3D] 
LIU Qiuying Water Conservancy and Hydropower Survey and Design Institute of Hunan Province, Changsha 410007, China [KH*3D] 
ZHONG Xiangxi Water Conservancy and Hydropower Survey and Design Institute of Hunan Province, Changsha 410007, China [KH*3D] 
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中文摘要:
      利用有限元分析软件ABAQUS的用户子程序接口,实现了Duncan-Chang本构模型在ABAQUS中开发,对土石坝应力应变进行分析。考虑渗流作用时,首先采用有限元法计算坝体渗流场,通过迭代法算出稳定渗流的逸出点和浸润线位置,并根据水力梯度得到坝体所受的渗透力。然后将渗流分析所确定的渗流力与土体浮力等荷载共同施加在施工期的坝体上,分析计算土石坝在稳定渗流期的应力应变值。分析结果表明:采用此方法进行土石坝稳定渗流期的应力应变分析是合理的,且大大提高了计算效率。
英文摘要:
      The stress and strain analysis for earth rock-fill Dam has been caryed out by the Duncan-Chang constitutive model using the subroutine in the finite element analysis software ABAQUS. When considering the effect of seepage, the position of the exit point and the phreatic surface, as well as the total head are calculated through iteration at first, the seepage forces are then determined according to the hydraulic gradient. In the consequent stability analysis, seepage forces, and buoyancy are loaded on the construction period dam. The stress and strain in stable seepage period for earth rock-fill dam were analyzed. The analysis results demonstrated that this method is reasonable and efficient for dam stress-strain during stable seepage period.
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