[1]胡良明,李宗坤,周鸿钧..重力坝坝踵界面裂缝的地震断裂分析[J].郑州大学学报(工学版),2002,23(03):101-103.[doi:10.3969/j.issn.1671-6833.2002.03.028]
　HU Liangming,Li Zongkun,Zhou Hongjun.Seismic fault analysis of heel interface fractures of gravity dams[J].Journal of Zhengzhou University (Engineering Science),2002,23(03):101-103.[doi:10.3969/j.issn.1671-6833.2002.03.028]

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重力坝坝踵界面裂缝的地震断裂分析()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

23

期数:

2002年03期

页码:

101-103

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Seismic fault analysis of heel interface fractures of gravity dams

作者:

胡良明; 李宗坤; 周鸿钧.

郑州大学环境与水利学院,河南,郑州,450002, 郑州大学环境与水利学院,河南,郑州,450002, 郑州大学环境与水利学院,河南,郑州,450002

Author(s):

HU Liangming; Li Zongkun; Zhou Hongjun

关键词:

粘弹性;  非均质裂缝;  断裂分析;  应力强度因子

Keywords:

viscoelasticity;  heterogeneous cracks;  fracture analysis;  Stress intensity factor

DOI:

10.3969/j.issn.1671-6833.2002.03.028

文献标志码:

A

摘要:

针对有限元方法计算异弹模界面裂缝程序繁琐的问题,利用特解边界元法,对重力坝坝踵区界面裂缝在地震作用下的应力强度因子变化规律进行了探讨,得出了应力强度因子 KⅠ,KⅡ,K0随弹模比的增加而减少,随裂缝长度的增加而增加,地震动水压力对重力坝裂缝影响较大.算例表明,特解边界元法是计算非均质裂缝动态断裂的有效方法.

Abstract:

Aiming at the cumbersome problem of calculating the interface cracks of the heteroelastic mold by the finite element method, the variation law of stress intensity factors of the interface cracks in the heel area of gravity dams under the action of earthquakes was discussed by the special solution boundary element method, and it was concluded that the stress intensity factors KI., KII., and K0 decreased with the increase of the elastic-mold ratio and increased with the increase of fracture length, and the ground water pressure had a greater influence on the cracks of gravity dams. The example shows that the special solution boundary element method is an effective method for calculating the dynamic fracture of heterogeneous fractures.

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