| 考虑墙后填土强度各向异性的主动土压力计算方法 |
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| 引用本文： | 张连卫,张建民.考虑墙后填土强度各向异性的主动土压力计算方法[J].中国矿业,2011,20(10). |
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| 作者姓名： | 张连卫 张建民 |
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| 作者单位： | 1. 北京科技大学土木与环境工程学院,北京 100083;清华大学岩土工程研究所,北京 100084
2. 清华大学岩土工程研究所,北京,100084 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 基于水平层分析法,假定不同方向滑裂面上的内摩擦角随该滑裂面与沉积面之间的夹角变化,提出了一种考虑材料各向异性的主动土压力计算方法.通过4个典型算例,讨论了墙后填土强度各向异性程度对主动土压力的影响.计算结果表明,随墙后填土沉积面与水平方向夹角增加,主动土压力逐渐变大,其合力作用点逐渐下降；随填土面倾角增加,各向异性影响逐渐增强.
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| 关 键 词： | 主动土压力 各向异性 抗剪强度 |
The method for active earth pressure calculation accounting for strength anisotropy of the soils |
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| ZHANG Lian-wei,ZHANG Jian-min.The method for active earth pressure calculation accounting for strength anisotropy of the soils[J].China Mining Magazine,2011,20(10). |
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| Authors: | ZHANG Lian-wei ZHANG Jian-min |
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| Affiliation: | ZHANG Lian-wei1,ZHANG Jian-min2(1.School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China,2.Institute of Geotechnical Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Assuming that the friction angle on different slip plane varies with the angle between the slip plane and bedding plane,an method for active earth pressure estimation accounting for the strength anisotropy of soil was presented based on the method of level-layer analysis.According to four typical examples,the effects of strength anisotropy were discussed.It was shown that the active earth pressure becomes larger and the application point becomes deeper with increasing inclination of the bedding plane of the... |
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| Keywords: | active earth pressure anisotropy shear strength |
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