| 某工程长短桩组合桩基础设计方案分析 |
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| 引用本文： | 杨敏,杨桦,王伟,黄上进.某工程长短桩组合桩基础设计方案分析[J].岩土力学,2005,26(Z1):218-222. |
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| 作者姓名： | 杨敏 杨桦 王伟 黄上进 |
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| 作者单位： | 1. 同济大学 地下建筑与工程系，上海 200092；2. 广东汕头升平建筑设计院，广东 汕头 515000 |
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| 摘 要： | 针对土层中存在上下两层或多层可供利用的桩端持力层，且建筑物对沉降要求较高的情况，基于减沉桩原理，根据长桩控制变形、短桩提供承载力的基本思路，提出长短桩组合桩基础设计思想。结合某一实际工程桩基设计，采用长短桩组合桩基础方案进行了三维有限元分析。结果表明，长短桩组合桩基础不仅可以大量减少长桩用量，而且可有效地控制基础整体沉降和差异沉降，显示了其良好的应用前景。
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| 关 键 词： | 长短桩 设计思想 有限元法 |
| 收稿时间： | 2005-01-20 |
Analysis of design project of long-short piles foundation of an engineering |
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| YANG Min,YANG Hua ,WANG Wei,HUANG Shang-jin.Analysis of design project of long-short piles foundation of an engineering[J].Rock and Soil Mechanics,2005,26(Z1):218-222. |
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| Authors: | YANG Min YANG Hua WANG Wei HUANG Shang-jin |
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| Affiliation: | 1.Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;
2. Shengpin Institute of Architecture Design, Shantou 515000, China |
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| Abstract: | Considering the case that there exist two bearing strata in soil and low settlement of foundation is required, based on the controlling settlement principle, the design philosophy of long-short piles foundation is presented. The long piles are to control the settlement and short piles to provide bearing capacity. Finite element model of long-short piles foundation is established to analyze a practical engineering. The results show that long-short piles foundation demands fewer long piles and can control the average settlement and differential settlement effectively. |
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| Keywords: | long-short piles design philosophy finite element method |
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