[1]刘忠玉,张庆伟..非稳定渗流对水泥土挡土墙稳定性的影响[J].郑州大学学报(工学版),2006,27(04):18-21.[doi:10.3969/j.issn.1671-6833.2006.04.005]
　LIU Zhongyu,Zhang Qingwei.Effect of unstable seepage on the stability of cement-soil retaining wall [J].Journal of Zhengzhou University (Engineering Science),2006,27(04):18-21.[doi:10.3969/j.issn.1671-6833.2006.04.005]

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非稳定渗流对水泥土挡土墙稳定性的影响()

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

卷:

27卷

期数:

2006年04期

页码:

18-21

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Effect of unstable seepage on the stability of cement-soil retaining wall

作者:

刘忠玉; 张庆伟.

郑州大学土木工程学院,河南,郑州,450001, 郑州大学土木工程学院,河南,郑州,450001

Author(s):

LIU Zhongyu; Zhang Qingwei

关键词:

非稳定渗流;  水压力;  水泥土;  挡土墙;  稳定性

Keywords:

unstable seepage;  water pressure;  cement soil;  retaining walls;  Stability

DOI:

10.3969/j.issn.1671-6833.2006.04.005

文献标志码:

A

摘要:

通过模拟降水过程中基坑的非稳定渗流场,分析了降水过程中作用于水泥土挡土墙上的水压力的变化规律,探讨了非稳定渗流对此类挡墙稳定性的影响.分析结果表明,墙四周的水压力都随时间而减小,而抗倾覆和抗水平滑动抗力分项系数却不断增大,且明显大于不考虑渗流、二维稳定渗流和一维简化渗流的计算结果.因此,在基坑支护设计中应该考虑非稳定渗流的影响.

Abstract:

By simulating the unstable seepage field of the foundation pit during precipitation, the variation law of water pressure acting on the cement-soil retaining wall during precipitation is analyzed, and the influence of unstable seepage on the stability of such retaining wall is discussed. The analysis results show that the water pressure around the wall decreases with time, while the sub-coefficients of overturning resistance and horizontal sliding resistance increase continuously, and are significantly larger than the calculation results without considering seepage, two-dimensional stable seepage and one-dimensional simplified seepage. Therefore, the influence of unstable seepage should be considered in the design of foundation pit support.

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