重力坝应力-渗流相互作用的无单元耦合分析

›› 2008, Vol. 29 ›› Issue (S1): 74-78.

重力坝应力-渗流相互作用的无单元耦合分析

沈振中^1，2，陈小虎^1，3，徐力群¹

1. 河海大学水利水电工程学院，南京 210098；2. 长江勘测规划设计研究院枢纽处，武汉 430010； 3. 长江勘测规化设计院枢纽处，武汉 430010

收稿日期:2008-07-24 出版日期:2008-11-11 发布日期:2016-04-15
作者简介:沈振中，男，1968年生，教授，博士生导师，研究方向是水工结构工程和岩土工程

Coupled analysis of stress-seepage interaction for gravity dam by element-free method

SHEN Zhen-zhong^{1, 2}, CHEN Xiao-hu^{1, 3}, XU Li-qun¹

1. College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China; 2. Changjiang Institute of Survey, Planning, Design and Research, Wuhan 430010, China; 3. Changjing Institute of Survey, Planning, Design and Research, Wuhan 430071,China

Received:2008-07-24 Online:2008-11-11 Published:2016-04-15

摘要/Abstract

摘要： 应用两场交叉迭代解耦技术，建立了应力-渗流相互作用的无单元耦合分析计算模型。详细分析了东方红重力坝在不计应力-渗流耦合和考虑应力-渗流耦合两种情况下，正常蓄水时坝体的位移、应力和渗流位势分布的变化规律。分析表明，考虑耦合作用后，坝体的位移略小，但分布规律一致；坝体的水平正应力分布不同，垂直正应力变化较大，但分布规律一致；耦合作用条件下渗流对重力坝坝体应力的影响是不利的。计算成果符合一般规律。

关键词: 重力坝, 无单元法, 应力-渗流相互作用, 耦合分析

Abstract: By the technique of decoupling with two-field iteration, a numerical analysis model is set up for solving the coupled problem of stress-seepage interaction by element-free method. The distribution laws of displacement, stress and seepage piezometric head of dam body and its foundation are analyzed in detail under the normal water level with and without when considering the stress-seepage interaction. It is shown that the displacement of dam under coupled condition is smaller than that of the not one, but their distributions are same. Meanwhile, the distributions of horizontal normal stress are different, and the vertical normal stress and shear stress and seepage equipotential lines are obviously different though their distributions are same too. The seepage flow can result in disadvantageous effect on stress of dam body under coupling condition. The calculation results accord with the general law.

Key words: gravity dam, element-free method, stress-seepage interaction, coupled analysis

中图分类号:

TV 642.3

沈振中，陈小虎，徐力群 . 重力坝应力-渗流相互作用的无单元耦合分析[J]. , 2008, 29(S1): 74-78.

SHEN Zhen-zhong , CHEN Xiao-hu , XU Li-qun . Coupled analysis of stress-seepage interaction for gravity dam by element-free method[J]. , 2008, 29(S1): 74-78.

参考文献

相关文章 15

[1]	蒋中明, 刘澧源, 赵海斌, 唐栋, 胡炜, 梅松华, 李鹏, . 地下储气库热力耦合数值分析动态边界条件研究[J]. 岩土力学, 2019, 40(3): 1149-1157.
[2]	杨石扣，任旭华，张继勋，. 基于数值流形法的重力坝水力劈裂研究[J]. , 2018, 39(8): 3055-3060.
[3]	周泽林，陈寿根，涂鹏，张海生, . 基坑开挖对邻近隧道影响的耦合分析方法[J]. , 2018, 39(4): 1440-1449.
[4]	冯帆，李夕兵，李地元，陈冲. 基于有限元/离散元耦合分析方法的含预制裂隙圆形孔洞试样破坏特性数值分析[J]. , 2017, 38(S2): 337-348.
[5]	熊勇林，朱合华，叶冠林，叶斌,. 降雨入渗引起非饱和土边坡破坏的水-土-气三相渗流-变形耦合有限元分析[J]. , 2017, 38(1): 284-290.
[6]	薛海斌，党发宁，尹小涛，丁卫华，刘海伟，. 非稳定渗流条件下非饱和土质边坡稳定性的矢量和分析法研究[J]. , 2016, 37(S1): 49-56.
[7]	徐栋栋，杨永涛，郑宏，邬爱清,. 基于数值流形法的重力坝多裂纹扩展研究[J]. , 2016, 37(12): 3598-3607.
[8]	艾智勇，蔡建邦 , . 层状地基上弹性地基梁的有限元-边界元耦合分析[J]. , 2015, 36(S2): 685-688.
[9]	熊瑜，张林，陈媛，聂鸿博. 主震和余震联合作用下复杂地基上重力坝的稳定性分析[J]. , 2015, 36(8): 2332-2338.
[10]	杨利福，常晓林，周伟，程勇刚，马刚 , . 基于离散元的重力坝多滑面深层抗滑稳定分析[J]. , 2015, 36(5): 1463-1470.
[11]	李美蓉，陈媛，张林，杨宝全 , . 复杂地质条件下多结构面对重力坝坝基稳定性的影响及处理[J]. , 2014, 35(S1): 328-333.
[12]	王超，张社荣，于茂. 峡谷区重力坝岸坡坝段动力稳定性评估方法[J]. , 2014, 35(5): 1383-1390.
[13]	吴创周，杨林德，刘成学，李鹏 . 各向异性岩应力-渗流耦合问题的反分析[J]. , 2013, 34(4): 1156-1162.
[14]	张玉军，徐刚，杨朝帅 . 应力腐蚀和压力溶解引起的裂隙开度-刚度变化对THMM耦合过程影响的数值模拟[J]. , 2013, 34(2): 559-567.
[15]	刘毓氚，刘一鸣 . 桩基础对邻近场地冲击荷载的响应分析[J]. , 2012, 33(9): 2796-2802.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed