| 软岩地基上桩筏基础实测分析 |
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| 引用本文： | 钟闻华,张克恭,刘松玉.软岩地基上桩筏基础实测分析[J].东南大学学报,2003,19(4):373-377. |
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| 作者姓名： | 钟闻华 张克恭 刘松玉 |
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| 作者单位： | 东南大学交通学院岩土工程研究所，南京210096 |
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| 摘 要： | 软岩地基上的嵌岩桩基础一般都认为是端承桩，设计时假定上部结构荷载全部由桩来承受，而不考虑桩间土的承载力．本主要根据现场实测的软岩地基上的嵌岩桩桩顶反力和筏底地基土反力数据，分析研究嵌岩桩与筏板及地基土之间的相互影响．结果表明，软岩地基上的嵌岩桩具有摩擦桩的特性，桩间土分担一部分的上部结构荷重，因此，建议软岩地区的嵌岩桩，在设计时也应该考虑桩间土的承载力，从而使设计更经济合理．
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| 关 键 词： | 软岩地基 嵌岩桩 端承桩 承载力 |
Case analysis of piled raft socketed in weak rock |
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| Zhong Wenhua,Zhang Kegong,Liu Songyu.Case analysis of piled raft socketed in weak rock[J].Journal of Southeast University(English Edition),2003,19(4):373-377. |
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| Authors: | Zhong Wenhua Zhang Kegong Liu Songyu |
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| Abstract: | Piles socketed in soft rock were traditionally regarded as end bearing piles, and the loads transferred from superstructure were assumed in design to be shouldered totally by the piles. This paper was designated to deal with the interaction between the piles socketed in weak rock and surrounding soil through field measurement. The pile head reaction and ground pressure under piled raft foundation were monitored, respectively. The analysis of the data measured in situ shows the characteristics of the pile embedded in weak rock are similar to that of friction pile to some extent. The rock socketed pile, together with the surrounding soil, shoulders the weight of the superstructure. It is suggested that soil bearing should be considered in designing the soft rock socketed piles, which can make the design more economical. |
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| Keywords: | piled raft weak rock rock socketed pile |
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