| 抗拔桩和抗压桩受力性状异同性研究 |
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| 引用本文： | 张忠苗,吴庆勇,张广兴.抗拔桩和抗压桩受力性状异同性研究[J].工程勘察,2006(6). |
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| 作者姓名： | 张忠苗 吴庆勇 张广兴 |
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| 作者单位： | 浙江大学土木工程学系 杭州310027 |
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| 摘 要： | 针对抗拔桩荷载传递机理和承载性状的研究比较缺乏的现状,本文通过对杭州某工程软土地基中抗压、抗拔钻孔灌注桩静荷载试验和桩身轴力的实测资料分析,研究了抗压桩与抗拔桩受力性状的异同性,得出了不同的荷载作用机理。结果表明抗拔桩和抗压桩的侧阻、端阻存在很大的不同,抗压桩端部侧阻发生增强效应,而抗拔桩端部侧阻出现退化效应。
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| 关 键 词： | 抗拔桩 抗压桩 受力性状 异同性 |
Study on Behaviors of Stresses for Uplift Piles and Compressive Piles |
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| Zhang Zhongmiao et al..Study on Behaviors of Stresses for Uplift Piles and Compressive Piles[J].Geotechnical Investigation & Surveying,2006(6). |
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| Authors: | Zhang Zhongmiao |
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| Affiliation: | Zhang Zhongmiao et al. |
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| Abstract: | The similarities and differences of tile behaviors of stresses for uplift piles and compressive piles are studied based on the in-situ testing results for the piles under compressive loads and tensile loads in soft soil.The mechanism of stresses under different loads is obtained.The results indicate that the lateral friction and end friction are quite different for the uplift piles and compressive piles.The improving effect occurs for the lateral friction at the end of compressive piles,and the degradation effect appears for the lateral friction at the end of uplift piles. |
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| Keywords: | uplift pile compressive pile behavior of stress similarity and difference |
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